WO2013186366A1 - Illuminating device and streetlight comprising said illuminating device - Google Patents
Illuminating device and streetlight comprising said illuminating device Download PDFInfo
- Publication number
- WO2013186366A1 WO2013186366A1 PCT/EP2013/062390 EP2013062390W WO2013186366A1 WO 2013186366 A1 WO2013186366 A1 WO 2013186366A1 EP 2013062390 W EP2013062390 W EP 2013062390W WO 2013186366 A1 WO2013186366 A1 WO 2013186366A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- illuminating device
- housing
- light
- base
- contact terminal
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000306 component Substances 0.000 description 6
- 230000004075 alteration Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
- F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
-
- 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
- F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels
- F21V27/02—Cable inlets
-
- 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
- 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 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
- Illuminating Device and Streetlight comprising said
- the present invention relates to an illuminating device and a streetlight comprising said illuminating device.
- the streetlights having LED as light source are widely applied.
- the streetlights have to bear not only the changes of warm and cold of the outside world, but also the invasion of wind and rain.
- Such illuminating devices generally have to meet the requirements in sealing of IP66 grade or above. Therefore, the designers have to solve the problem, viz. how to enhance the waterproofness and dust tightness of such illuminating devices.
- the illuminating module assembled sealedly as one piece has to electrically connect with an external wire by a waterproof connector, so as to obtain working current or control signal.
- One end of such connector is sealedly inserted into an opening opened on the illuminating module, while the other end is in sealed connection with the external wire.
- As such connector is essential for the illuminating module, relative much costs are inevitably spent for the con ⁇ nector during the production and the installation.
- the present invention provides a novel illuminating device, which enables an illuminating system to meet the requirements of IP66 grade or above. Moreover, the manufacture and installation thereof is easy, and it also has good reliability. Furthermore, the present invention provides a streetlight comprising an illu ⁇ minating device of the above mentioned type.
- the illuminating device has a housing, a light-emitting assembly and a base, the housing and the base defining an accommodating cavity for the light-emitting assembly, characterized by further comprising an electrical connector, which is formed in the housing in one piece and has a first contact terminal for connecting with the light-emitting assembly, and a second contact termi ⁇ nal for connecting with an external assembly, the first con ⁇ tact terminal extending into the accommodating cavity.
- the conception of the present invention lies in the abandon- ment of an additional sealing member for mounting the elec- trical connector on the housing and/or the base, instead of that, the segment of the electrical connector, with exception of the first and the second contact terminals, is integrated in the housing in one piece, when manufacturing the housing.
- the electrical connector has the first contact terminal, which extending in the accommodating cavity formed by the housing and the base and is connecting with light-emitting assembly, and the sec- ond contact terminal, which is connecting with an assembly arranged outside the illuminating device. Therefore, current and/or control signal can be provided to light-emitting as ⁇ sembly by the electrical connector.
- the assembly arranged outside the illuminating device can be, for example, a power net or a signal receiver or the like.
- the housing includes a first part coupling with the base for defining the accommodating cavity, and a second part projecting from the first part in a side direction.
- the first part is used for coupling with the base to define the accommodating cavity
- the second part of the housing as a projecting part, appreciably ex ⁇ tends beyond the edge of the first part in a direction paral ⁇ lel with the housing, viz. in a side direction of the hous- ing.
- the second part defines a protective cavity, and the second contact terminal extends into the protective cavity.
- the second contact terminal as an end of the electrical con- nector, separately extends beyond the first part, which is used to define the accommodating cavity.
- the second part is configured as a protective cavity having at least one open end, so as to accommodate the second contact terminal. There ⁇ fore, it can be prevented that the second contact terminal is damaged by an external force or has unexpected electrical connection.
- the electrical connector is formed with the housing in one piece using injection molding process.
- the segment of the electrical connector with exception of the first and the second contact terminals, can be sealedly embedded in the housing using injection molding process.
- PC or PMMA is preferably selected to manufacture the housing.
- the electrical connector comprises a pair of conductive metal bars, wherein the first contact terminal in the accom ⁇ modating cavity can press against the light-emitting assem- bly.
- the pair of conductive metal bars used as electrical connector can have a predetermined shape.
- the segment inte ⁇ grated in the housing in one piece can be configured as elon ⁇ gated, while the first and the second contact terminals ex ⁇ tending respectively from the housing can have a shape suit- able for fixedly connecting with the component to be con ⁇ nected, wherein the first contact terminal is particularly configured as contact plate, which can press against the electrical connection region of the light-emitting assembly when assembling the housing and the base.
- the electrical connector comprise at least one set of wires.
- the wires can as feed wire be in electrical connec ⁇ tion with the light-emitting assembly, and can also as signal wire be in electrical connection with the control circuit of the light-emitting assembly.
- the housing is a lens.
- the housing is configured as transparent, so as to transmit light and realize other corresponding optical effect, in the meanwhile, the light-emitting assembly can be protected.
- an additional housing and/or lens for the il ⁇ luminating device there is no need to arrange an additional housing and/or lens for the il ⁇ luminating device.
- the light-emitting assembly includes a light source and a circuit board carrying the light source, wherein the light source faces the lens.
- the circuit board having a light source mounted is fixed in the accommodating cavity, wherein the light source mounted on one side of the circuit board emits light facing the lens, and the other side arranged op ⁇ posite to the side of the light source can be fixed on the base by means of fasteners or binders.
- the light source is a LED chip. Having high luminance and low power consumption, LED chips are perfectly suitable for being used as light source of the illuminating device of the present invention.
- the base comprises a heat sink.
- Said base is made from material having good thermal conduction property, such as thermal conductive metal or plastic, and the side facing the housing can be configured as a plane carrying the light- emitting assembly, while the other side deviating from said plane can be configured as having a cooling structure.
- the cooling structure can be e.g. a plurality of cooling ribs.
- the present inven ⁇ tion further comprises a sealing member, the housing and the base being fixedly connected by matching at respective edge regions, and the sealing member sealing the edge re- gions.
- the edge region of the first part of the housing can e.g. be fixedly connected with the edge region of the base in mechanical manner such as splicing or engaging, to define an accommodating cavity.
- the connection which only de- pends upon form-fit, cannot assure the sealing performance of the accommodating cavity.
- the sealing performance of the accommodating cavity can be improved by means of an additional sealing member.
- the sealing member is a rubber ring.
- the rubber ring matching the edge region of the accommo ⁇ dating cavity can be clamped between the first part of the housing and the edge of the base using the elasticity per se, to further assure that the light-emitting assembly is
- the present invention further relates to a streetlight com ⁇ prising the above mentioned illuminating device, wherein the housing, the light-emitting assembly and the base have an elongated-shape.
- a streetlight com ⁇ prising the above mentioned illuminating device wherein the housing, the light-emitting assembly and the base have an elongated-shape.
- Such streetlight particularly suitable for being mounted outdoors has a sealing performance meeting IP66 grade. Thus, it can resist climatic changes of the nature and therefore, has relative longer service life. Furthermore, such streetlight has an elongated light area.
- FIG. 1 exploded assembly drawing of the first example of the illuminating device according to the present invention
- FIG. 2 3D perspective of the housing with an electrical connector of the first example as shown in Fig. 1 ;
- FIG. 3 upward view of the first example as shown in Fig. 1.
- Fig. 1 exemplarily shows the exploded assembly drawing of the illuminating device 100 according to the present invention.
- the illuminating device 100 includes a housing 1 used as lens, a light-emitting assembly 2 composed of a light source 2.1 and a circuit board 2.2 carrying the light source 2.1, a base 3 used as heat sink, and an electrical connector 4 for providing the light-emitting assembly with current and/or control signal.
- the housing 1 which has optical curve (not show in figures of the present invention) , includes a first part 1.1 matching the base 3 and a second part 1.2 as pro ⁇ jecting end extending from one side of the first part 1.1.
- the first part 1.1 and the base 3 fixedly connect with each other by the respective edge regions per se, to define an ac ⁇ commodating cavity Rl for accommodating the light-emitting assembly 2. Moreover, in order to enhance the sealing performance of the accommodating cavity Rl, a sealing member 5 clamped between the first part 1.1 and the base 3 can be ad ⁇ ditionally arranged, the sealing member 5 being shown in the figure as sealing ring. As the electrical connector 4 needs to electrically connect a component located outside the illuminating device 100 with the light-emitting assembly in the accommodating cavity Rl, there is need to fix the electrical connector in the illumi ⁇ nating device 100 in a sealed manner.
- the electrical connector 4 is a pair of conductive metal bars made from e.g. copper, having a first contact terminal Al for the light-emitting assembly 2 and a second contact terminal A2 for the external assembly, wherein the first con ⁇ tact terminal Al in the accommodating cavity Rl is configured as contact plate having a bended part.
- the first contact terminal Al bears a pressure applied by the housing 1 to the base 3, and is pressed against an electrical connection region 2.3 of the circuit board 2.2.
- the base 3 has on one side a flat area carrying the circuit 2.2, and on the other side opposite the flat area a plurality of cooling ribs 3.1 for increasing cooling area.
- the flat area can be configured as base facing cupped grooves of the cooling ribs 3.1.
- Fig. 2 shows the electrical connector 4 and the housing of Fig. 1.
- the electrical connector 4 is formed in the housing 1 in one piece, wherein only the first contact terminal Al and the second contact terminal A2 fail to be en ⁇ capsulated in the housing 1.
- the first contact terminal Al is located in an area covered by the first part 1.1, so as to electrically connect with the circuit board 2.2, which is covered by the first part 1.1 as well.
- the second contact terminal A2 extends into a protective cavity R2 defined by the second part 1.2.
- the second part 1.2 in the present exam ⁇ ple has a contour, whose cross-section is approximately ring form; the protective cavity R2 defined hereby has a cylindri ⁇ cal contour. Through the protective cavity R2, it can be pre ⁇ vented that the second contact terminal A2 is damaged by an external force, or has unexpected electrical connection with other external components.
- Fig. 3 shows an upward view of the first example as shown in Fig. 1.
- the illuminating device 100 only the second contact terminal A2 extends along the bottom surface of the protective cavity R2 defined by the second part 1.2 into the protective cavity R2, so as to electrically connect with an external component.
- Such structure having good sealing performance can assure that the illuminating device 100 can work normally, even in harsh working environmental conditions, such as when bearing fierce wind and/or heavy rainfall.
- the base 3 configured as heat sink has a plurality of cooling ribs 3.1, it can also assure that the illuminating device 100 has good cooling function.
- the electrical connector 4 can also be configured as at least one set of wires integrated with the housing 2 as one piece.
- a LED chip is preferably used as light source 2.1.
- a particular feature or aspect of an em- bodiment of the present invention may have been disclosed with respect to only one of several implementations, such feature or aspect may be combined with one or more other fea tures or aspects of the other implementations as may be de ⁇ sired for any given or particular application.
- the terms "include”, “have”, “with”, or other variants thereof are used in either the detailed de ⁇ scription or the claims, such terms are intended to be inclu sive in a manner similar to the term “comprise”.
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 an illuminating device (100) having a housing (1), a light-emitting assembly (2) and a base (3), the housing (1) and the base (3) defining an accommodating cavity (R1) for the light-emitting assembly (2), characterized by further comprising an electrical connector (4), which is formed in the housing (1) in one piece and has a first contact terminal (A1) for connecting with the light-emitting assembly (2), and a second contact terminal (A2) for connecting with an external assembly, the first contact terminal (A1) extending into the accommodating cavity (R1). Furthermore, the present invention relates to a streetlight comprising said illuminating device.
Description
Description
Illuminating Device and Streetlight comprising said
Illuminating Device
Technical Field
The present invention relates to an illuminating device and a streetlight comprising said illuminating device.
Background Art Nowadays, outdoor illuminating systems, particularly outdoor illuminating systems having LED as light source, are more and more applied. Such illuminating systems are generally used for illuminating for buildings, trees or other objects. The working environments thereof require the same to meet the re- quirements of corresponding industrial protection grade.
Moreover, their size and weight shall be relative small, the manufacturing expenses shall be relative low, and they shall also have good reliability.
Having the characteristics of energy saving and high effi- ciency, the streetlights having LED as light source are widely applied. The streetlights have to bear not only the changes of warm and cold of the outside world, but also the invasion of wind and rain. Thus, such illuminating devices generally have to meet the requirements in sealing of IP66 grade or above. Therefore, the designers have to solve the problem, viz. how to enhance the waterproofness and dust tightness of such illuminating devices.
In the prior art, the illuminating module assembled sealedly as one piece has to electrically connect with an external
wire by a waterproof connector, so as to obtain working current or control signal. One end of such connector is sealedly inserted into an opening opened on the illuminating module, while the other end is in sealed connection with the external wire. As such connector is essential for the illuminating module, relative much costs are inevitably spent for the con¬ nector during the production and the installation. Furthermore, there is also need to additionally inspect the sealing performance of the connector during the maintenance process, in order to assure the normal operation of the illuminating module .
Summary of the Invention
Considering the various defects of the prior art, the present invention provides a novel illuminating device, which enables an illuminating system to meet the requirements of IP66 grade or above. Moreover, the manufacture and installation thereof is easy, and it also has good reliability. Furthermore, the present invention provides a streetlight comprising an illu¬ minating device of the above mentioned type. The illuminating device according to the present invention has a housing, a light-emitting assembly and a base, the housing and the base defining an accommodating cavity for the light-emitting assembly, characterized by further comprising an electrical connector, which is formed in the housing in one piece and has a first contact terminal for connecting with the light-emitting assembly, and a second contact termi¬ nal for connecting with an external assembly, the first con¬ tact terminal extending into the accommodating cavity.
The conception of the present invention lies in the abandon- ment of an additional sealing member for mounting the elec-
trical connector on the housing and/or the base, instead of that, the segment of the electrical connector, with exception of the first and the second contact terminals, is integrated in the housing in one piece, when manufacturing the housing. Thus, it can be assured that the electrical connector is sealedly fixed in the housing. In this case, the electrical connector has the first contact terminal, which extending in the accommodating cavity formed by the housing and the base and is connecting with light-emitting assembly, and the sec- ond contact terminal, which is connecting with an assembly arranged outside the illuminating device. Therefore, current and/or control signal can be provided to light-emitting as¬ sembly by the electrical connector. The assembly arranged outside the illuminating device can be, for example, a power net or a signal receiver or the like.
According to a preferable embodiment of the present inven¬ tion, the housing includes a first part coupling with the base for defining the accommodating cavity, and a second part projecting from the first part in a side direction. As main part of the housing, the first part is used for coupling with the base to define the accommodating cavity, while the second part of the housing, as a projecting part, appreciably ex¬ tends beyond the edge of the first part in a direction paral¬ lel with the housing, viz. in a side direction of the hous- ing.
According to a preferable embodiment of the present inven¬ tion, the second part defines a protective cavity, and the second contact terminal extends into the protective cavity. The second contact terminal, as an end of the electrical con- nector, separately extends beyond the first part, which is used to define the accommodating cavity. Thus, particularly for protecting the second contact terminal, the second part
is configured as a protective cavity having at least one open end, so as to accommodate the second contact terminal. There¬ fore, it can be prevented that the second contact terminal is damaged by an external force or has unexpected electrical connection.
According to a preferable embodiment of the present inven¬ tion, the electrical connector is formed with the housing in one piece using injection molding process. When manufacturing the housing, the segment of the electrical connector, with exception of the first and the second contact terminals, can be sealedly embedded in the housing using injection molding process. However, other proper modes for pre-arranging the electrical connector in the housing are also considerable. Therefore, PC or PMMA is preferably selected to manufacture the housing.
According to a preferable embodiment of the present inven¬ tion, the electrical connector comprises a pair of conductive metal bars, wherein the first contact terminal in the accom¬ modating cavity can press against the light-emitting assem- bly. The pair of conductive metal bars used as electrical connector can have a predetermined shape. The segment inte¬ grated in the housing in one piece can be configured as elon¬ gated, while the first and the second contact terminals ex¬ tending respectively from the housing can have a shape suit- able for fixedly connecting with the component to be con¬ nected, wherein the first contact terminal is particularly configured as contact plate, which can press against the electrical connection region of the light-emitting assembly when assembling the housing and the base. Moreover, as copper has good conductivity and costs little, it is preferably pro¬ vided that the conductive metal bars are copper bars.
According to another preferable embodiment of the present in¬ vention, the electrical connector comprise at least one set of wires. The wires can as feed wire be in electrical connec¬ tion with the light-emitting assembly, and can also as signal wire be in electrical connection with the control circuit of the light-emitting assembly.
According to a preferable embodiment of the present inven¬ tion, the housing is a lens. Hereby, the housing is configured as transparent, so as to transmit light and realize other corresponding optical effect, in the meanwhile, the light-emitting assembly can be protected. Thus, there is no need to arrange an additional housing and/or lens for the il¬ luminating device.
According to a preferable embodiment of the present inven- tion, the light-emitting assembly includes a light source and a circuit board carrying the light source, wherein the light source faces the lens. The circuit board having a light source mounted is fixed in the accommodating cavity, wherein the light source mounted on one side of the circuit board emits light facing the lens, and the other side arranged op¬ posite to the side of the light source can be fixed on the base by means of fasteners or binders.
According to a preferable embodiment of the present inven¬ tion, the light source is a LED chip. Having high luminance and low power consumption, LED chips are perfectly suitable for being used as light source of the illuminating device of the present invention.
According to a preferable embodiment of the present inven¬ tion, the base comprises a heat sink. Said base is made from material having good thermal conduction property, such as
thermal conductive metal or plastic, and the side facing the housing can be configured as a plane carrying the light- emitting assembly, while the other side deviating from said plane can be configured as having a cooling structure. The cooling structure can be e.g. a plurality of cooling ribs.
According to a preferable embodiment of the present inven¬ tion, it further comprises a sealing member, the housing and the base being fixedly connected by matching at respective edge regions, and the sealing member sealing the edge re- gions. The edge region of the first part of the housing can e.g. be fixedly connected with the edge region of the base in mechanical manner such as splicing or engaging, to define an accommodating cavity. However, because of manufacturing tolerance and fitting allowance, the connection, which only de- pends upon form-fit, cannot assure the sealing performance of the accommodating cavity. In this case, the sealing performance of the accommodating cavity can be improved by means of an additional sealing member.
According to a preferable embodiment of the present inven- tion, the sealing member is a rubber ring. As having elasticity, the rubber ring matching the edge region of the accommo¬ dating cavity, can be clamped between the first part of the housing and the edge of the base using the elasticity per se, to further assure that the light-emitting assembly is
sealedly arranged in the accommodating cavity.
The present invention further relates to a streetlight com¬ prising the above mentioned illuminating device, wherein the housing, the light-emitting assembly and the base have an elongated-shape. Such streetlight particularly suitable for being mounted outdoors has a sealing performance meeting IP66 grade. Thus, it can resist climatic changes of the nature and
therefore, has relative longer service life. Furthermore, such streetlight has an elongated light area.
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 de¬ scribe 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 exploded assembly drawing of the first example of the illuminating device according to the present invention;
Fig. 2 3D perspective of the housing with an electrical connector of the first example as shown in Fig. 1 ;
Fig. 3 upward view of the first example as shown in Fig. 1.
Detailed Description of the Embodiments
In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, direc¬ tional terminology, such as "top", "bottom", "inner",
"outer", is used in reference to the orientation of the fig- ures being described. Because components of embodiments of the present invention can be positioned in a number of dif¬ ferent orientations, the directional terminology is used for
purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and structural or logical changes may made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.
It is to be understood that the features of the various exem¬ plary embodiments described herein may be combined with each other, unless specifically noted otherwise.
Fig. 1 exemplarily shows the exploded assembly drawing of the illuminating device 100 according to the present invention. The illuminating device 100 includes a housing 1 used as lens, a light-emitting assembly 2 composed of a light source 2.1 and a circuit board 2.2 carrying the light source 2.1, a base 3 used as heat sink, and an electrical connector 4 for providing the light-emitting assembly with current and/or control signal. The housing 1 , which has optical curve (not show in figures of the present invention) , includes a first part 1.1 matching the base 3 and a second part 1.2 as pro¬ jecting end extending from one side of the first part 1.1. The first part 1.1 and the base 3 fixedly connect with each other by the respective edge regions per se, to define an ac¬ commodating cavity Rl for accommodating the light-emitting assembly 2. Moreover, in order to enhance the sealing performance of the accommodating cavity Rl, a sealing member 5 clamped between the first part 1.1 and the base 3 can be ad¬ ditionally arranged, the sealing member 5 being shown in the figure as sealing ring. As the electrical connector 4 needs to electrically connect a
component located outside the illuminating device 100 with the light-emitting assembly in the accommodating cavity Rl, there is need to fix the electrical connector in the illumi¬ nating device 100 in a sealed manner. According to the pre- sent example, the most segment of the electrical connector 4 is firstly pre-arranged in the housing 1 in e.g. injection molding mode. Hereby, the sealing between the electrical con¬ nector 4 and the housing 1 can be assured. As shown in Fig. 1, the electrical connector 4 is a pair of conductive metal bars made from e.g. copper, having a first contact terminal Al for the light-emitting assembly 2 and a second contact terminal A2 for the external assembly, wherein the first con¬ tact terminal Al in the accommodating cavity Rl is configured as contact plate having a bended part. When the housing 1 and the base 3 are assembled together, the first contact terminal Al bears a pressure applied by the housing 1 to the base 3, and is pressed against an electrical connection region 2.3 of the circuit board 2.2.
The base 3 has on one side a flat area carrying the circuit 2.2, and on the other side opposite the flat area a plurality of cooling ribs 3.1 for increasing cooling area. In order that the circuit board 2.2 can be mounted on the base 3 in a position fixed manner, the flat area can be configured as base facing cupped grooves of the cooling ribs 3.1. Thus, it can be assured that the first part 1.1 of the housing 1 can be fixed together with the base 3 in a form-fitted manner, to define an accommodating cavity Rl .
Fig. 2 shows the electrical connector 4 and the housing of Fig. 1. In this case, the electrical connector 4 is formed in the housing 1 in one piece, wherein only the first contact terminal Al and the second contact terminal A2 fail to be en¬ capsulated in the housing 1. The first contact terminal Al is
located in an area covered by the first part 1.1, so as to electrically connect with the circuit board 2.2, which is covered by the first part 1.1 as well. The second contact terminal A2 extends into a protective cavity R2 defined by the second part 1.2. The second part 1.2 in the present exam¬ ple has a contour, whose cross-section is approximately ring form; the protective cavity R2 defined hereby has a cylindri¬ cal contour. Through the protective cavity R2, it can be pre¬ vented that the second contact terminal A2 is damaged by an external force, or has unexpected electrical connection with other external components.
Fig. 3 shows an upward view of the first example as shown in Fig. 1. According to Fig. 3, it can be identified that, in the illuminating device 100, only the second contact terminal A2 extends along the bottom surface of the protective cavity R2 defined by the second part 1.2 into the protective cavity R2, so as to electrically connect with an external component. Such structure having good sealing performance can assure that the illuminating device 100 can work normally, even in harsh working environmental conditions, such as when bearing fierce wind and/or heavy rainfall. Furthermore, as the base 3 configured as heat sink has a plurality of cooling ribs 3.1, it can also assure that the illuminating device 100 has good cooling function. In the unshown second example, the electrical connector 4 can also be configured as at least one set of wires integrated with the housing 2 as one piece.
In the examples according to the present invention, a LED chip is preferably used as light source 2.1. In addition, while a particular feature or aspect of an em-
bodiment of the present invention may have been disclosed with respect to only one of several implementations, such feature or aspect may be combined with one or more other fea tures or aspects of the other implementations as may be de¬ sired for any given or particular application. Furthermore, to the extent that the terms "include", "have", "with", or other variants thereof are used in either the detailed de¬ scription or the claims, such terms are intended to be inclu sive in a manner similar to the term "comprise".
The above is merely preferred embodiments of the present in¬ vention but not to limit the present invention. For the per¬ son skilled in the art, the present invention may have vari¬ ous alterations and changes. Any alterations, equivalent sub stitutions, 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 housing
1.1 first part
1.2 second part
2 light-emitting assembly
2.1 light source
2.2 circuit board
2.3 electrical connection region
3 base
3.1 cooling rib
4 electrical connector
5 sealing member
Al first contact terminal A2 second contact terminal
Rl accommodating cavity
R2 protective cavity
Claims
1. An illuminating device (100) having a housing (1), a light-emitting assembly (2) and a base (3), the housing (1) and the base (3) defining an accommodating cavity (Rl) for the light-emitting assembly (2), characterized by further comprising an electrical connector (4), which is formed in the housing (1) in one piece and has a first contact terminal (Al) for connecting with the light-emitting assembly (2), and a second contact terminal (A2) for connecting with an external assembly, the first contact terminal (Al) extending into the accommodating cavity (Rl) .
2. The illuminating device (100) according to Claim 1, characterized in that the housing (1) includes a first part (1.1) coupling with the base (3) for defining the accommodat¬ ing cavity (Rl), and a second part (1.2) projecting from the first part (1.1) in a side direction.
3. The illuminating device (100) according to Claim 2, characterized in that the second part (1.2) defines a protec- tive cavity (R2), and the second contact terminal (A2) ex¬ tends into the protective cavity (R2) .
4. The illuminating device (100) according to any one of Claims 1-3, characterized in that the electrical connector (4) is formed with the housing (1) in one piece using injec- tion molding process.
5. The illuminating device (100) according to any one of Claims 1-3, characterized in that the electrical connector (4) comprises a pair of conductive metal bars, wherein the first contact terminal (Al) in the accommodating cavity (Rl) can press against the light-emitting assembly (2) .
6. The illuminating device (100) according to Claim 5, characterized in that the conductive metal bars are copper bars .
7. The illuminating device (100) according to any one of Claims 1-3, characterized in that the electrical connector
(4) comprises at least one set of wires.
8. The illuminating device (100) according to any one of Claims 1-3, characterized in that the housing (1) is a lens.
9. The illuminating device (100) according to Claim 8, characterized in that the light-emitting assembly (2) in¬ cludes a light source (2.1) and a circuit board (2.2) carry¬ ing the light source (2.1), wherein the light source (2.1) faces the lens.
10. The illuminating device (100) according to Claim 9, characterized in that the light source (2.1) is a LED chip.
11. The illuminating device (100) according to any one of Claims 1-3, characterized in that the base (3) comprises a heat sink.
12. The illuminating device (100) according to any one of Claims 1-3, characterized by further comprising a sealing member (5), the housing (1) and the base (3) being fixedly connected by matching at respective edge regions, and the sealing member (5) sealing the edge regions.
13. The illuminating device (100) according to Claim 12, characterized in that the sealing member (5) is a rubber ring .
14. The illuminating device (100) according to any one of Claims 1-3, characterized in that the housing (1) is made from PC or PMMA.
15. A streetlight, characterized by comprising an illuminat- ing device (100) according to any one of Claims 1-14, wherein the housing (1), the light-emitting assembly (2) and the base (3) have an elongated-shape.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210199959.3A CN103511906A (en) | 2012-06-14 | 2012-06-14 | Lighting device and street lamp comprising lighting device |
CN201210199959.3 | 2012-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013186366A1 true WO2013186366A1 (en) | 2013-12-19 |
Family
ID=48700538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2013/062390 WO2013186366A1 (en) | 2012-06-14 | 2013-06-14 | Illuminating device and streetlight comprising said illuminating device |
Country Status (2)
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CN (1) | CN103511906A (en) |
WO (1) | WO2013186366A1 (en) |
Families Citing this family (1)
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CN113748297A (en) * | 2019-03-07 | 2021-12-03 | 亮锐控股有限公司 | Lighting device with high flexibility in connecting electrical components |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2006122392A1 (en) * | 2005-05-20 | 2006-11-23 | Tir Systems Ltd. | Cove illumination module and system |
US20100079991A1 (en) * | 2008-09-30 | 2010-04-01 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Led lamp with an improved sealed structure |
WO2011067115A1 (en) * | 2009-12-04 | 2011-06-09 | Osram Gesellschaft mit beschränkter Haftung | Led lighting module with co-molded metal contacts |
US20120088397A1 (en) * | 2010-10-07 | 2012-04-12 | Taiwan Semiconductor Manufacturing Company, Ltd. | Light emitting diode light bar module with electrical connectors formed by injection molding |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101082414B (en) * | 2006-05-30 | 2011-08-17 | 新灯源科技有限公司 | Luminous diode lighting apparatus with high power and high heat sinking efficiency |
JP5059479B2 (en) * | 2007-04-26 | 2012-10-24 | 株式会社小糸製作所 | Vehicle headlamp |
JP4727001B2 (en) * | 2009-02-16 | 2011-07-20 | 三菱電機株式会社 | Lighting device for headlamp light source |
-
2012
- 2012-06-14 CN CN201210199959.3A patent/CN103511906A/en active Pending
-
2013
- 2013-06-14 WO PCT/EP2013/062390 patent/WO2013186366A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006122392A1 (en) * | 2005-05-20 | 2006-11-23 | Tir Systems Ltd. | Cove illumination module and system |
US20100079991A1 (en) * | 2008-09-30 | 2010-04-01 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Led lamp with an improved sealed structure |
WO2011067115A1 (en) * | 2009-12-04 | 2011-06-09 | Osram Gesellschaft mit beschränkter Haftung | Led lighting module with co-molded metal contacts |
US20120088397A1 (en) * | 2010-10-07 | 2012-04-12 | Taiwan Semiconductor Manufacturing Company, Ltd. | Light emitting diode light bar module with electrical connectors formed by injection molding |
Also Published As
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CN103511906A (en) | 2014-01-15 |
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