# US 8,770,797 B2 · Illumination device having heat dissipating means and light sensor

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- Number: US 8,770,797 B2
- Document ID: US8770797B2
- Status: Granted
- Kind: B2
- Application number: 13/455,099
- Filed: 2012-04-24
- Published: 2013-10-24
- Granted: 2014-07-08
- Earliest claimed: 2012-04-24
- Applicants: Chih-Chien Wang
- Inventors: Chih-Chien Wang
- Web page: https://patentgrep.com/patent/US8770797B2

## CPC

- F21V 29/507: of means for protecting lighting devices from damage, e.g. housings
- F21V 29/74: with fins or blades
- F21V 29/83: the elements having apertures, ducts or channels, e.g. heat radiation holes
- F21S 8/086: {with lighting device attached sideways of the standard, e.g. for roads and highways}
- F21V 23/0464: {the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors}
- F21W 2131/103: of streets or roads
- Y10S 362/802: Position or condition responsive switch
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

An illuminating device includes a heat-dissipating shroud, a heat-dissipating module, an upper cover module and a lower cover module. The heat-dissipating module includes a light source, a substrate, a heat-conducting element and heat-dissipating blades. The upper cover module includes an upper cover, a light sensor and a protective cover. The lower cover module includes a lower cover, a transparent shroud and a transformer. The heat-dissipating shroud is assembled above the heat-dissipating blades of the heat-dissipating module. A top surface of the heat-dissipating shroud is provided with heat-dissipating holes. A space of a suitable height is generated between the top surface of the heat-dissipating shroud and the heat-dissipating blades of the heat-dissipating module to act as a heat concentration chamber. A gap is formed between the bottom of the heat-dissipating shroud and the top surface of the upper cover of the upper cover module.

## Claims

### Claim 1

An illuminating device, including a heat-dissipating shroud, a heat-dissipating module, an upper cover module and a lower cover module, the heat-dissipating module comprising a light source, a substrate, a heat-conducting element and heat-dissipating blades, the upper cover module comprising an upper cover, a light sensor and a protective cover, the lower cover module comprising a lower cover, a transparent shroud and a transformer, wherein:
the heat-dissipating shroud is assembled above the heat-dissipating blades of the heat-dissipating module, a top surface of the heat-dissipating shroud is provided with heat-dissipating holes arranged regularly or irregularly, a space of a suitable height is generated between the top surface of the heat-dissipating shroud and the heat-dissipating blades of the heat-dissipating module to act as a heat concentration chamber, a gap is formed between the bottom of the heat-dissipating shroud and the top surface of the upper cover of the upper cover module;
the substrate is provided above the light source, the substrate is assembled in a mounting hole of the upper cover of the upper cover module, the heat-conducting element is assembled with the substrate and thus brought into contact with the substrate, the surface area of the heat-conducting element is larger than the surface area of the substrate, the heat-dissipating blades are assembled above the heat-conducting element and brought into contact with the heat-conducting element, the light source is provided below the upper cover of the upper cover module, the light source is electrically connected to the transformer of the lower cover module;
a front end of the upper cover is provided with the mounting hole in which the substrate of the heat-dissipating module is assembled, a middle portion of the upper cover is provided with a base in which the light sensor is assembled, the protective cover is mounted outside the light sensor, the light sensor is electrically connected to the light source of the heat-dissipating module and the transformer of the lower cover module, the upper cover is combined with a lower cover of the lower cover module;
a front end of the lower cover is provided with a hole in which the transparent shroud is received, a rear end of the lower cover is provided with a space in which the transformer is mounted, the lower cover is assembled with the upper cover of the upper cover module.

### Claim 2 (depends on 1)

The illuminating device according to claim 1, further including a light-reflecting plate disposed around the light source for reflecting the light emitted by the light source toward the transparent shroud.

### Claim 3 (depends on 1)

The illuminating device according to claim 1, further including a first airtight plastic strip disposed on a connecting side between the upper cover and the lower cover.

### Claim 4 (depends on 1)

The illuminating device according to claim 1, further including a second airtight plastic material disposed on a connecting side between the transparent shroud and the lower cover.

### Claim 5 (depends on 1)

The illuminating device according to claim 1, wherein the rear end of the upper cover is provided with a stick-connecting portion, and the stick-connecting portion is equipped with a fixing element.

### Claim 6 (depends on 1)

The illuminating device according to claim 1, wherein the heat-dissipating module further comprises a heat-conducting gasket assembled on an upper surface of the heat-conducting element and located between the heat-dissipating blades and the heat-conducting element, the heat-conducting gasket is brought into contact with the heat-dissipating blades and the heat-conducting element.

### Claim 7 (depends on 1)

The illuminating device according to claim 1, wherein the rear end of the upper cover is integrally formed with a lamp stick.

### Claim 8 (depends on 1)

The illuminating device according to claim 1, wherein the heat-dissipating shroud is provided with upright pawls along edges of the heat-dissipating holes in a direction perpendicular to the heat-dissipating holes.

### Claim 9 (depends on 8)

The illuminating device according to claim 8, wherein the upright pawls are provided with detents staggered to each other.