WO2013034491A1 - A housing for an illuminating apparatus, a manufacturing method of the same, and an illuminating apparatus having the housing - Google Patents

A housing for an illuminating apparatus, a manufacturing method of the same, and an illuminating apparatus having the housing Download PDF

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Publication number
WO2013034491A1
WO2013034491A1 PCT/EP2012/066943 EP2012066943W WO2013034491A1 WO 2013034491 A1 WO2013034491 A1 WO 2013034491A1 EP 2012066943 W EP2012066943 W EP 2012066943W WO 2013034491 A1 WO2013034491 A1 WO 2013034491A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing portion
groove
lower housing
upper housing
illuminating apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2012/066943
Other languages
French (fr)
Inventor
Yaojun Feng
Yuanyuan He
Yubao He
Haiping Yuan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Osram GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram GmbH filed Critical Osram GmbH
Publication of WO2013034491A1 publication Critical patent/WO2013034491A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/03—Gas-tight or water-tight arrangements with provision for venting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/04—Provision of filling media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a housing for an illuminating apparatus and a manufacturing method of the same.
  • the present invention further relates to an illuminating apparatus having the housing of the above type.
  • the housing of the streetlamp is usually composed of an upper housing portion and a lower housing por- tion.
  • the two housing portions are locked together and form a cavity for accommodating an LED lighting assembly therein, wherein one housing portion has a transparent cover.
  • a sealing ring made from a rubber.
  • Such housing can be dustproof and waterproof to a certain degree.
  • the sealing ring is compressed to different degrees at different places between the housing portions, i.e. it may be tightly held at some places and loosely at some other places .
  • the sealing effect may be unfavorable at the places where the sealing ring is loosely held, and water and dust possibly enter an inside of the housing from such places, thus causing damage to the LED lighting assembly therein.
  • the present invention provides a housing for an illuminating apparatus.
  • the housing is capable of providing an excellent waterproof perform- ance with a simple structure and a low cost.
  • the present invention further provides an illuminating apparatus having the housing of the above type and a manufacturing method of the housing of the above type.
  • the first object of the present invention is accomplished via a housing for an illuminating apparatus through the following solution.
  • the housing comprises an upper housing portion and a lower housing portion assembled together with respective contact surfaces to form an assembling cavity, wherein a first groove and a second groove are formed on contact sur- faces of the upper housing portion and the lower housing portion respectively, and the first groove and the second groove jointly define a filling channel surrounding the assembling cavity, and wherein the filling channel is filled with a solidifiable liquid potting glue.
  • a close matching between the contact surfaces of the two housing portions is assured by improving the manufacturing precision, so as to guarantee a sufficient anti -leakage performance of the filing channel constituted by the first groove and the second groove, because the liquid potting glue will not easily flow out from the contact sur- faces of the two housing portions since the filling channel should be potted with the liquid potting glue.
  • the liquid potting glue can be completely potted into any area of the filling channel, and a situation of loss of sealing caused by deformation due to stress will not appear when the housing is exerted with a non-uniform external force.
  • the housing according to the present invention provides an excellent sealing performance.
  • the first groove and the second groove extend in form of labyrinth respectively to define a labyrinth-type filling channel that further increases the difficulty of the water entering the inside of the housing, so as to improve the waterproof performance of the housing.
  • the liquid potting glue is made from epoxy resin, silicon rubber or polyurethane .
  • the liquid potting glue also may be made from other liquid potting materials suitable as waterproof sealing material .
  • the upper housing portion or the lower housing portion is provided with an injection hole and an vent hole opening into the filling channel. After the upper and lower housing portions are locked together, the filling channel relatively sealed is formed between the contact surfaces.
  • a gas in the filling channel might block filling of the liquid pot- ting glue when the liquid potting glue is filled through the injection hole, then addition of a vent hole will smooth the potting, and could effectively prevent generation of bubbles in the filling channel that will negatively affect the seal- ing effect.
  • a transparent cover is mounted on one of the upper housing portion and the lower housing portion, and the other one of the upper housing portion and the lower housing portion is designed as a heat sink with a plurality of fins.
  • the configuration of one housing portion as the heat sink can effectively decrease the number of parts of the housing and reduce the cost; and using one portion of the housing simultaneously as the heat sink also effectively shortens a length of a thermal path between a lighting assembly and the heat sink, reduces a thermal resistance, improves a thermal dissipating performance, and further improves an illuminating efficiency of the lighting assembly, especially of an LED lighting assembly .
  • the transparent cover is made from a glass or plastic .
  • the upper housing portion and the lower housing portion are bonded or welded together. Since the filling channel has been filled with the liquid potting glue that can be effectively filled in every corner of the filling channel after solidification, there is no need to use bolts to tightly fasten the two housing portions, as in the prior art, for further holding a sealing member between the two housing portions.
  • the housing according to the present invention effectively decreases the number of parts. Moreover, since the bolts are not used in the housing of the present invention, stress concentration points causing defor- mation of a sealing member at places where the bolts are in- stalled as in the prior art will not appear.
  • one of the upper housing portion and the lower housing portion is provided with at least one hook
  • the other one of the upper housing portion and the lower housing portion is provide with at least one recess engaging wiht the hook.
  • a simple hook connection enables the upper housing portion and the lower housing portion to be simply com- bined with and separated from each other. Accordingly, the hook can be simply withdrawn from the recess to open the housing in a situation that the lighting assembly in the housing is failed, and the hook is again snapped into the recess after maintenance so as to lock the upper and lower housing portions once again; and a perfect sealing housing is formed again after the liquid potting glue is filled.
  • Another object of the present invention is accomplished via a manufacturing method of a housing for an illuminating apparatus through the following solution.
  • the method includes the steps of: a) providing an upper housing portion and a lower housing portion; b) forming a first groove and a second groove on contact surfaces of the upper housing portion and the lower housing portion, respectively; c) providing an injection hole and an vent hole on the upper housing portion or the lower housing portion; d) assmebling the upper housing portion and the lower housing portion together to form an assembling cavity, and the first groove and the second groove defined a filling channel surrounding the assembling cavity; e) injecting a liquid potting glue into the filling channel through the injection hole; and f) solidifying the liquid potting glue.
  • the housing manufactured by the method according to the present invention has a simpler structure and a better sealing performance.
  • step a) mounting a transparent cover on one of the upper housing portion and the lower housing portion, and providing the other one of the upper housing portion and the lower housing portion is as a heat sink with a plurality of fines.
  • the configuration of one housing portion as the heat sink can effectively decrease the number of parts of the housing and reduce the cost.
  • Using one portion of the housing simultane- ously as the heat sink also effectively shortens a length of a thermal path between a lighting assembly and the heat sink, reduces a thermal resistance, improves a thermal dissipating performance, and further improves an illuminating efficiency of the lighting assembly, especially of the LED lighting as- sembly.
  • the upper housing portion and the lower housing portion are bonded or welded together, which effectively decreases the number of the parts.
  • stress concentration points causing deformation of a sealing member at places where the bolts are installed as in the prior art will not appear.
  • one of the upper housing portion and the lower housing portion is provided with at least one hook
  • the other one of the upper housing portion and the lower housing portion is provided with at least one recess engaging with the hook.
  • the last object of the present invention lies in providing an illuminating apparatus having the housing of the above type.
  • An LED lighting assembly is arranged in an assembling cavity of the housing of the illuminating apparatus.
  • the illuminat- ing apparatus has an excellent waterproof performance with a simple structure and a low cost.
  • a reflector array is further arranged in the assembling cavity of the housing, each LED chip of the LED lighting assembly corresponds to one reflector element of the reflector array, which is favorable for adjusting independently light from the LED chip according to different situations so as to realize different optical performances.
  • Fig. 1 is a schematic diagram of an upper housing portion of a housing according to the present invention
  • Fig. 2 is a schematic diagram of a lower housing portion of the housing according to the present invention
  • FIG. 3 is a schematic diagram of the housing in an assembled state according to the present invention
  • Fig. 4 is a sectional view of the housing according to the present invention.
  • Fig. 5 is a schematic diagram of an illuminating apparatus according to the present invention.
  • Fig. 1 is a schematic diagram of an upper housing portion 1 of a housing according to the present invention.
  • the upper housing portion 1 has a top surface configured as a transparent cover 8 and four side walls reaching uprightly from the top surface. These side surfaces jointly define an assembling cavity 14.
  • end surfaces of the four side walls are configured with a first groove 3 extending on respective end surfaces.
  • a hook 9 is further configured on the four side walls.
  • the transparent cover 8 may be made from a transparent glass or plastic.
  • the upper housing portion 1 is further configured with an injection hole 6 communicating with a filling channel 5, and a potting glue 16 is filled into the housing through the injection hole 6.
  • Fig. 2 is a schematic diagram of a lower housing portion 2 of the housing according to the present invention.
  • the lower housing portion 2 in one solution of the present invention is configured as heat sink that has a plurality of fins 15.
  • a mounting surface of the lower housing portion 2 is configured with a second groove 4 that corresponds to an extending direction of the first groove 3 shown in Fig. 1, so as to constitute jointly with the first groove 3 the filling channel 5 (see Fig. 4) when the upper housing portion 1 is locked onto the lower housing portion 2.
  • a recess 10 corresponding to a position of the hook 9 shown in Fig.
  • the upper housing portion 1 and the lower housing portion 2 may be welded or bonded together.
  • a corresponding vent hole 7 communicating with the filling channel 5 for exhausting a gas when the liquid potting glue 16 is filled.
  • Fig. 3 is a schematic diagram of the housing in an assembled state according to the present invention. As can be seen from the figure, the hook 9 has been snapped into the recess 10, and the injection hole 6 and the vent hole 7 can be seen from a side surface of the housing.
  • Fig. 4 is a sectional view of the housing according to the present invention.
  • the first groove 3 and the second groove 4 jointly constitute the filling channel 5 after the upper housing portion 1 and the lower housing portion 2 are locked together.
  • the filling channel 5 surrounds the assembling cavity 14 so as to provide a sealing structure for the assembling cavity 14 when the liquid pot- 1
  • Fig. 5 is a schematic diagram of an illuminating apparatus according to the present invention.
  • the illuminating apparatus further comprises an LED lighting assembly arranged in the assembling cavity 14 of the housing.
  • the LED lighting assembly comprises a plurality of LED chips 11 and a reflec- tor array 12, wherein the reflector array 12 comprises a plurality of reflector elements 13, and wherein each reflector element 13 corresponds to one LED chip 11.
  • the upper housing portion 1 and the lower housing portion 2 are locked together, wherein the hook 9 is snapped into the recess 10, so that the first groove 3 and the second groove 4 constitute the filling channel 5. Consequently, the liquid potting glue 16 is filled into the filling channel 5 through the injection hole 6 until a minute amount of the liquid pot- ting glue 16 flows out from the vent hole 7. A sealing structure is formed upon solidification of the liquid potting glue 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The present invention relates to a housing for an illuminating apparatus comprising an upper housing portion (1) and a lower housing portion (2) assembled together with respective contact surfaces to form an assembling cavity (14), wherein a first groove (3) and a second groove (4) are formed on contact surfaces of the upper housing portion (1) and the lower housing portion (2) respectively, and the first groove (3) and the second groove (4) jointly constitute a filling channel (5) surrounding the assembling cavity (14), and wherein the filling channel (5) is filled with a solidifiable liquid potting glue (16) for forming a sealing structure. The present invention further relates to an illuminating apparatus having the housing of the above type, and a manufacturing method of the housing for the illuminating apparatus of the above type.

Description

Description
A Housing for an Illuminating Apparatus, a Manufacturing Method of the Same, and an Illuminating Apparatus Having the Housing
Technical Field
The present invention relates to a housing for an illuminating apparatus and a manufacturing method of the same. In ad- dition, the present invention further relates to an illuminating apparatus having the housing of the above type.
Background Art
With the constant improvement of the level of the material and cultural life, more and more choose to go out at night to take part in various activities. Consequently, it becomes more and more important to well illuminate the street. Besides, with the continuous development of the LED chip technology, people use the LED more and more as the light source applied to the streetlamp for illuminating the street. How- ever, this requires the housing of the streetlamp to have a good waterproof and dustproof performance since the street- lamp is used in the outdoor environment.
In the prior art, the housing of the streetlamp is usually composed of an upper housing portion and a lower housing por- tion. The two housing portions are locked together and form a cavity for accommodating an LED lighting assembly therein, wherein one housing portion has a transparent cover. In order to seal the housing, on a joint surface where the upper housing portion and the upper housing portion are against each other is usually arranged a sealing ring made from a rubber. Such housing can be dustproof and waterproof to a certain degree. However, since the two housing portions are locked together or fixed together via fastening bolts, the sealing ring is compressed to different degrees at different places between the housing portions, i.e. it may be tightly held at some places and loosely at some other places . The sealing effect may be unfavorable at the places where the sealing ring is loosely held, and water and dust possibly enter an inside of the housing from such places, thus causing damage to the LED lighting assembly therein.
Summary of the Invention
In order to solve the above problem, the present invention provides a housing for an illuminating apparatus. The housing is capable of providing an excellent waterproof perform- ance with a simple structure and a low cost. In addition, the present invention further provides an illuminating apparatus having the housing of the above type and a manufacturing method of the housing of the above type.
The first object of the present invention is accomplished via a housing for an illuminating apparatus through the following solution. The housing comprises an upper housing portion and a lower housing portion assembled together with respective contact surfaces to form an assembling cavity, wherein a first groove and a second groove are formed on contact sur- faces of the upper housing portion and the lower housing portion respectively, and the first groove and the second groove jointly define a filling channel surrounding the assembling cavity, and wherein the filling channel is filled with a solidifiable liquid potting glue. In one solution of the present invention, a close matching between the contact surfaces of the two housing portions is assured by improving the manufacturing precision, so as to guarantee a sufficient anti -leakage performance of the filing channel constituted by the first groove and the second groove, because the liquid potting glue will not easily flow out from the contact sur- faces of the two housing portions since the filling channel should be potted with the liquid potting glue. Moreover, in one solution of the present invention, no matter how irregular a shape of the filling channel constituted by the two grooves is, the liquid potting glue can be completely potted into any area of the filling channel, and a situation of loss of sealing caused by deformation due to stress will not appear when the housing is exerted with a non-uniform external force. Therefore, the housing according to the present invention provides an excellent sealing performance. Preferably, the first groove and the second groove extend in form of labyrinth respectively to define a labyrinth-type filling channel that further increases the difficulty of the water entering the inside of the housing, so as to improve the waterproof performance of the housing. According to the present invention, the liquid potting glue is made from epoxy resin, silicon rubber or polyurethane . Of course, the liquid potting glue also may be made from other liquid potting materials suitable as waterproof sealing material . According to one preferred solution of the present invention, the upper housing portion or the lower housing portion is provided with an injection hole and an vent hole opening into the filling channel. After the upper and lower housing portions are locked together, the filling channel relatively sealed is formed between the contact surfaces. Thus, a gas in the filling channel might block filling of the liquid pot- ting glue when the liquid potting glue is filled through the injection hole, then addition of a vent hole will smooth the potting, and could effectively prevent generation of bubbles in the filling channel that will negatively affect the seal- ing effect.
According to one preferred solution of the present invention, a transparent cover is mounted on one of the upper housing portion and the lower housing portion, and the other one of the upper housing portion and the lower housing portion is designed as a heat sink with a plurality of fins. The configuration of one housing portion as the heat sink can effectively decrease the number of parts of the housing and reduce the cost; and using one portion of the housing simultaneously as the heat sink also effectively shortens a length of a thermal path between a lighting assembly and the heat sink, reduces a thermal resistance, improves a thermal dissipating performance, and further improves an illuminating efficiency of the lighting assembly, especially of an LED lighting assembly . Preferably, the transparent cover is made from a glass or plastic .
According to the present invention, the upper housing portion and the lower housing portion are bonded or welded together. Since the filling channel has been filled with the liquid potting glue that can be effectively filled in every corner of the filling channel after solidification, there is no need to use bolts to tightly fasten the two housing portions, as in the prior art, for further holding a sealing member between the two housing portions. The housing according to the present invention effectively decreases the number of parts. Moreover, since the bolts are not used in the housing of the present invention, stress concentration points causing defor- mation of a sealing member at places where the bolts are in- stalled as in the prior art will not appear.
Preferably, one of the upper housing portion and the lower housing portion is provided with at least one hook, and the other one of the upper housing portion and the lower housing portion is provide with at least one recess engaging wiht the hook. Such a simple hook connection enables the upper housing portion and the lower housing portion to be simply com- bined with and separated from each other. Accordingly, the hook can be simply withdrawn from the recess to open the housing in a situation that the lighting assembly in the housing is failed, and the hook is again snapped into the recess after maintenance so as to lock the upper and lower housing portions once again; and a perfect sealing housing is formed again after the liquid potting glue is filled.
Another object of the present invention is accomplished via a manufacturing method of a housing for an illuminating apparatus through the following solution. The method includes the steps of: a) providing an upper housing portion and a lower housing portion; b) forming a first groove and a second groove on contact surfaces of the upper housing portion and the lower housing portion, respectively; c) providing an injection hole and an vent hole on the upper housing portion or the lower housing portion; d) assmebling the upper housing portion and the lower housing portion together to form an assembling cavity, and the first groove and the second groove defined a filling channel surrounding the assembling cavity; e) injecting a liquid potting glue into the filling channel through the injection hole; and f) solidifying the liquid potting glue. The housing manufactured by the method according to the present invention has a simpler structure and a better sealing performance.
According to the method of the present invention, in the step a) , mounting a transparent cover on one of the upper housing portion and the lower housing portion, and providing the other one of the upper housing portion and the lower housing portion is as a heat sink with a plurality of fines. The configuration of one housing portion as the heat sink can effectively decrease the number of parts of the housing and reduce the cost. Using one portion of the housing simultane- ously as the heat sink also effectively shortens a length of a thermal path between a lighting assembly and the heat sink, reduces a thermal resistance, improves a thermal dissipating performance, and further improves an illuminating efficiency of the lighting assembly, especially of the LED lighting as- sembly.
Preferably, in the step d) , the upper housing portion and the lower housing portion are bonded or welded together, which effectively decreases the number of the parts. Moreover, since bolts are not used in the method of the present inven- tion, stress concentration points causing deformation of a sealing member at places where the bolts are installed as in the prior art will not appear.
Further preferably, in the step d) , one of the upper housing portion and the lower housing portion is provided with at least one hook, and the other one of the upper housing portion and the lower housing portion is provided with at least one recess engaging with the hook. Such simple hook connection enables the upper housing portion and the lower housing portion to be simply combined with and separated from each other. Accordingly, the hook can be simply withdrawn from the recess to open the housing in a situation that the light- ing assembly in the housing is failed, and the hook is again snapped into the recess after maintenance so as to lock the upper and lower housing portions once again; and a perfect sealing housing is formed again after the liquid potting glue is filled.
The last object of the present invention lies in providing an illuminating apparatus having the housing of the above type. An LED lighting assembly is arranged in an assembling cavity of the housing of the illuminating apparatus. The illuminat- ing apparatus has an excellent waterproof performance with a simple structure and a low cost.
Preferably, a reflector array is further arranged in the assembling cavity of the housing, each LED chip of the LED lighting assembly corresponds to one reflector element of the reflector array, which is favorable for adjusting independently light from the LED chip according to different situations so as to realize different optical performances.
Brief Description of the Drawings
The accompanying drawings constitute a part of the present Description and are used to provide further understanding of the present invention. Such accompanying drawings illustrate the embodiments of the present invention and are used to describe the principles of the present invention together with the Description. In the accompanying drawings the same com- ponents are represented by the same reference numbers. As shown in the drawings :
Fig. 1 is a schematic diagram of an upper housing portion of a housing according to the present invention; Fig. 2 is a schematic diagram of a lower housing portion of the housing according to the present invention;
Fig. 3 is a schematic diagram of the housing in an assembled state according to the present invention; Fig. 4 is a sectional view of the housing according to the present invention; and
Fig. 5 is a schematic diagram of an illuminating apparatus according to the present invention.
Detailed Description of the Embodiments Fig. 1 is a schematic diagram of an upper housing portion 1 of a housing according to the present invention. As can be seen from the figure, the upper housing portion 1 has a top surface configured as a transparent cover 8 and four side walls reaching uprightly from the top surface. These side surfaces jointly define an assembling cavity 14. Besides, it can be seen from Fig. 1 that end surfaces of the four side walls are configured with a first groove 3 extending on respective end surfaces. Meanwhile, a hook 9 is further configured on the four side walls. In one solution of the pre- sent invention, the transparent cover 8 may be made from a transparent glass or plastic. In addition, it also can be seen from Fig. 1 that the upper housing portion 1 is further configured with an injection hole 6 communicating with a filling channel 5, and a potting glue 16 is filled into the housing through the injection hole 6.
Fig. 2 is a schematic diagram of a lower housing portion 2 of the housing according to the present invention. The lower housing portion 2 in one solution of the present invention is configured as heat sink that has a plurality of fins 15. Meanwhile, a mounting surface of the lower housing portion 2 is configured with a second groove 4 that corresponds to an extending direction of the first groove 3 shown in Fig. 1, so as to constitute jointly with the first groove 3 the filling channel 5 (see Fig. 4) when the upper housing portion 1 is locked onto the lower housing portion 2. Moreover, it can be seen from Fig. 2 that on the lower housing portion 2 is further configured a recess 10 corresponding to a position of the hook 9 shown in Fig. 1, so as to allow the hook 9 to be snapped into the recess 10 when the upper housing portion 1 and the lower housing portion 2 are locked together, and thus fixedly connecting the upper housing portion 1 and the lower housing portion 2. Certainly, the upper housing portion 1 and the lower housing portion 2 according to the present invention also may be welded or bonded together. Besides, on the lower housing portion 2 is further configured a corresponding vent hole 7 communicating with the filling channel 5 for exhausting a gas when the liquid potting glue 16 is filled.
Fig. 3 is a schematic diagram of the housing in an assembled state according to the present invention. As can be seen from the figure, the hook 9 has been snapped into the recess 10, and the injection hole 6 and the vent hole 7 can be seen from a side surface of the housing.
Fig. 4 is a sectional view of the housing according to the present invention. As can be seen from the figure, the first groove 3 and the second groove 4 jointly constitute the filling channel 5 after the upper housing portion 1 and the lower housing portion 2 are locked together. The filling channel 5 surrounds the assembling cavity 14 so as to provide a sealing structure for the assembling cavity 14 when the liquid pot- 1
ting glue 16 is filled into the filling channel 5. Of course, the first groove 3 and the second groove 4 also may extend in a labyrinth manner so as to form a labyrinth-type filling channel 5. Fig. 5 is a schematic diagram of an illuminating apparatus according to the present invention. The illuminating apparatus further comprises an LED lighting assembly arranged in the assembling cavity 14 of the housing. The LED lighting assembly comprises a plurality of LED chips 11 and a reflec- tor array 12, wherein the reflector array 12 comprises a plurality of reflector elements 13, and wherein each reflector element 13 corresponds to one LED chip 11.
In a manufacturing method of the present invention, firstly the upper housing portion 1 and the lower housing portion 2 are locked together, wherein the hook 9 is snapped into the recess 10, so that the first groove 3 and the second groove 4 constitute the filling channel 5. Consequently, the liquid potting glue 16 is filled into the filling channel 5 through the injection hole 6 until a minute amount of the liquid pot- ting glue 16 flows out from the vent hole 7. A sealing structure is formed upon solidification of the liquid potting glue 16.
The above is merely preferred embodiments of the present invention but not to limit the present invention. For the per- son skilled in the art, the present invention may have various alterations and changes. Any alterations, equivalent substitutions, improvements, within the spirit and principle of the present invention, should be covered in the protection scope of the present invention. List of reference signs
1 upper housing portion
2 lower housing portion 3 first groove
4 second groove
5 filling channel
6 injection hole
7 vent hole
8 transparent cover
9 hook
10 recess
11 LED chip
12 reflector array
13 reflector element
14 assembling cavity
15 fin
16 potting glue

Claims

Patent claims
1. A housing for an illuminating apparatus, comprising an upper housing portion (1) and a lower housing portion (2) as- sembled together with respective contact surfaces to form an assembling cavity (14), wherein a first groove (3) and a second groove (4) are formed on the contact surfaces of the upper housing portion (1) and the lower housing portion (2) respectively, and the first groove (3) and the second groove (4) jointly define a filling channel (5) surrounding the assembling cavity (14), and wherein the filling channel (5) is filled with a solidifiable liquid potting glue (16) .
2. The housing according to Claim 1, wherein the first groove (3) and the second groove (4) extend in form of labyrinth respectively to define a labyrinth-type filling channel (5) .
3. The housing according to Claim 1 or 2, wherein the liq- uid potting glue (16) is made from epoxy resin, silicon rubber or polyurethane .
4. The housing according to Claim 1 or 2,, wherein the upper housing portion (1) or the lower housing portion (2) is provided with an injection hole (6) and a vent hole (7) opening into the filling channel (5) .
5. The housing according to Claim 1 or 2,, wherein a transparent cover (8) is mounted on one of the upper housing portion (1) and the lower housing portion (2) .
6. The housing according to Claim 5, wherein the other one of the upper housing portion (1) and the lower housing portion (2) is designed as a heat sink with a plurality of fins (15) .
7. The housing according to Claim 5, wherein the transparent cover (8) is made from a glass or plastic.
8. The housing according to any one of Claim 1 or 2, wherein the upper housing portion (1) and the lower housing portion (2) are bonded or welded together.
9. The housing according to any one of Claim 1 or 2, wherein one of the upper housing portion (1) and the lower housing portion (2) is provided with at least one hook (9), and the other one of the upper housing portion (1) and the lower housing portion (2) is provided with at least one recess (10) engaging with the hook (9) .
10. A manufacturing method of a housing for an illuminating apparatus, including steps of: a) providing an upper housing portion (1) and a lower housing portion (2 ) ; b) forming a first groove (3) and a second groove (4) on contact surfaces of the upper housing portion (1) and the lower housing portion (2), respectively; c) providing an injection hole (6) and an vent hole (7) on the upper housing portion (1) or the lower housing portion (2) ; d) assembling the upper housing portion (1) and the lower housing portion (2) together to form an assembling cavity
(14), and the first groove (3) and the second groove (4) defined a filling channel (5) surrounding the assembling cavity (14) ; e) injecting a liquid potting glue (16) into the filling channel (5) through the injection hole (6) ; and f) solidifying the liquid potting glue (16) .
11. The manufacturing method according to Claim 10, wherein in the step a) , mounting a transparent cover (8) on one of the upper housing portion (1) and the lower housing portion (2), and providing the other one of the upper housing portion (1) and the lower housing portion (2) as a heat sink
12. The manufacturing method according to Claim 10, wherein in the step d) , the upper housing portion (1) and the lower housing portion (2) are bonded or welded together.
13. The manufacturing method according to Claim 10, wherein in the step d) , one of the upper housing portion (1) and the lower housing portion (2) is provided with at least one hook (9), and the other one of the upper housing portion (1) and the lower housing portion (2) is provided with at least one recess (10) engaging with the hook (9) .
14. An illuminating apparatus, wherein the illuminating apparatus has the housing according to any one of Claims 1-9, and an LED lighting assembly is arranged in an assembly cav- ity (14) of the housing.
15. The illuminating apparatus according to Claim 13, wherein a reflector array (12) is further arranged in the assembling cavity (14) of the housing, each LED chip (11) of the LED lighting assembly corresponds to one reflector element (13) of the reflector array (12) .
PCT/EP2012/066943 2011-09-05 2012-08-31 A housing for an illuminating apparatus, a manufacturing method of the same, and an illuminating apparatus having the housing Ceased WO2013034491A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011102607231A CN102980165A (en) 2011-09-05 2011-09-05 Shell of illuminating device and manufacturing method thereof and illuminating device with shell
CN201110260723.1 2011-09-05

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