Flare Cross
led gu10 bulb structure
A led gu10 bulb structure includes a housing, a support, an LED light source, a light source driving circuit board, a lens, and a cover.
The housing has a horn-like shape with a converged end and a flared end, wherein the flared end is formed with an accommodation chamber; the converged end is arranged with a support, and the accommodation chamber receives an LED light source, a light source driving circuit board, and a lens; and the cover is engaged with the flared end of the housing. Given that the light source driving circuit board is located at the flared end of the housing with a larger space. As such, an improved cooling effect can be obtained and that the electronic components can be more durable and reliable. And the lens has a predetermined illuminating angle, so that a desirable illumination effect on the LED light source can be obtained.
A led gu10 bulb structure, comprising: a housing, having a horn-like shape with a converged end and a flared end which is formed with an accommodation chamber; a support,arranged underneath the converged end of the housing and provided with two contacts; a LED light source, arranged at the accommodation chamber of the housing; a light source driving circuit board, arranged at the housing and inside the accommodationchamber, where the light source driving circuit board is connected with the LED light source and with the contacts of the support respectively, the light source driving circuit board includes a central hole, and the LED light source is located at thecentral hole and projects light beams outward from the central hole; a lens, arranged inside the accommodation chamber of the housing, and located above the LED light source; and a cover, engaged with the flared end of the housing.
Nowadays lamps available in the market, such as those modeled in GU10, E12, MR16 or E27 lampbase, are used to project light beams on articles so as to improve brightness, aesthetics, and displaying effect of the articles. Examples can be foundin art galleries where art works and jewelries are illuminated with lamps. A light fitting is then formed with a lamp structure arranged into a frame.
FIG. 1 illustrates a perspective view of a conventional lamp structure; and FIG. 2 illustrates a cross-sectional view of the conventional lamp structure. A lamp structure 9, known as Model MR 16, comprises a reflector 91, a housing 92, and asupport 93, wherein the reflector 91, the housing 92, and the support 93 are assembled in sequence, and two contacts 931 are arranged underneath the support 93.
A light source 921 and a lens 922 are arranged in the housing 92, wherein the light source 921 includes LEDs, and the lens 922 is located above the light source 921 for light condensing, such that light beams from the light source 921 areprojected toward a particular (predetermined) direction.
A light source driving circuit board 932 is arranged inside the support 93, and is electrically connected with the light source 921 and with the contacts 931 underneath the support 93.
However, such a lamp structure 9 usually has a support 9 in a relatively small dimension. This is because when the light source driving circuit board 932 is arranged inside the support 93, the dimension of the light source driving circuit board932 will no doubt be limited by inner space of the support 93. Under such a circumstance, the light source driving circuit board 932 can only be designed as small as possible in dimension. Likewise, for the electronic components mounted on the lightsource driving circuit board 932, design and assembly with the dimension of the electronic components minimized become very difficult.
Moreover, as known very well to persons in the technical field for the lamp structure 9, the light source driving circuit board 932 will produce more heat during operation. As a result, when the light source driving circuit board 932 is confinedin a space of smaller dimension, cooling will be a very important issue; and since the support 93 is in a closing state, cooling becomes difficult for the light source driving circuit board 932. Thus the heat produced from the light source drivingcircuit board 932 will make components in the support 93 easily damaged. In particular, since she support 93 is usually made of plastics, the heat produced from the light source driving circuit board 932 will make the support 93 or other plasticcomponents softened or even melted. This not only makes the lamp structure disable, but also shortens the life of the lamp structure (lowering reliability of the lamp structure 9).
An object of the present invention is to provide an led gu10 bulb structure, comprising a housing, a support, an LED light source, a light source driving circuit board, a lens, and a cover. The housing has a horn-like shape with a converged end and aflared end, wherein the flared end is formed with an accommodation chamber. The support is arranged underneath the converged end of the housing and is provided with two contacts.
The LED light source is arranged at the accommodation chamber of the housing, and that the light source driving circuit board is arranged at the housing and inside the accommodation chamber, where the light source driving circuit board isconnected with the LED light source and with the contacts of the support, respectively.
The lens is arranged inside the accommodation chamber of the housing, and is located above the LED light source. The cover is engaged with the flared end of the housing.
Further, given that the light source driving circuit board is arranged in the accommodation chamber which is located at the flared end of the housing with a larger space, minimization to the light source driving circuit board, as needed by theconventional art because of limited space, is unnecessary. As such, electronic components on the light source driving circuit board require only a normal dimension. In addition, a convenient assembly can be facilitated, and an improved cooling effectbe obtained.
An improvement on ventilation prevents the light source driving circuit board from being damaged due to the heat produced from per se; nor the problem encountered by the conventional art occurs owing to an undesirable ventilation that the lightsource driving circuit board is confined in a narrow internal space of the support and that the electronic components on the light source driving circuit board may be softened or even melted.
Therefore, the led gu10 bulb structure according to the presentinvention can be more durable and reliable.
About the Author
Refine company, as a famous and professional led gu10 bulb producer and exporter, we have many catergories Energy saving downlight,400W flood lamp,LED bulb,down light,led mr16 bulb and other components.
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