Patent Application
20120106776
The present invention relates to a slim speaker, and more particularly to a slim speaker that not only has simplified structure to effectively reduce an overall height of the diaphragm thereof and an assembled volume of the whole speaker for easily mounting in the limited inner space of an electric product, but also stabilizes the vibration of the voice coil of the speaker to enable good resonance of sound.
The rapid progress in scientific and technological fields brings people upgraded living quality. For instance, the conventional large-sized and expensive cathode ray tube (CRT) television has been replaced by the low-weight and slim liquid crystal display (LCD) television. The LCD television is able to provide ideal-quality, high-fidelity and large-size images, and allows users to enjoy virtual live visual pleasure. Further, in practical use thereof, the LCD television occupies less space and can be positioned on a low cabinet or hung on a wall in a living room, and is therefore widely accepted by the consumers.
The new-generation LCD television is featured by its large-size screen and small thickness, and looks just like a simple and orderly picture frame. However, due to the reduced overall thickness and volume, the LCD television now has very limited inner space.
A primary object of the present invention is to provide a slim speaker that includes a casing having an enlarged front opening and a rear end with a magnetic circuit mounted thereto; a voice coil located over a central area of the magnetic circuit; a diaphragm located between the enlarged front opening of the casing and the voice coil; and a damper located behind the diaphragm to space from the latter. The diaphragm has at least one V-shaped bent section provided at a middle portion for bearing on a corresponding position on the damper. With these arrangements, the diaphragm not only has an effectively reduced overall height to largely reduce the assembled volume of the slim speaker and allow the slim speaker to be easily mounted in the limited inner space of an electric product, but also stabilizes the vibration of the voice coil to enable good resonance of sound.
The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein
The present invention will now be described with some preferred embodiments thereof. For the purpose of easy to understand, elements that are the same in the preferred embodiments are denoted by the same reference numerals.
Please refer to
The slim speaker of the present invention is characterized in that the diaphragm 3 is provided at a middle portion with at least one V-shaped bent section 31 for bearing on a corresponding position on the damper 4. In practical implementation, the damper 4 has an outer circumferential edge glued to the shoulder portion of the stepped peripheral wall 12 of the casing 1 and an inner circumferential edge glued to a bottom of the bent section 31 of the diaphragm 3. Alternatively, in a second embodiment of the present invention as shown in
Please refer to
With the above design, the diaphragm 3 and accordingly the casing 1 can have an effectively reduced overall height to thereby largely reduce the volume of the fully assembled speaker, allowing the slim speaker to be easily mounted in the very limited inner space of an LCD television, as shown in
In the fully assembled slim speaker of the present invention, the V-shaped bent section 31 at the middle portion of the diaphragm 3 is glued to a corresponding position on the damper 4. When the slim speaker outputs sound, the diaphragm 3 presents good compliance and flexibility to bend and vibrate in response to the back and forth movement or piston motion of the voice coil 2, so that the voice coil 2 can vibrate stably for the diaphragm 3 to produce good resonance of sound. This allows the slim speaker to work and produce sound wave harmoniously to thereby obtain improved tone.
The present invention has been described with some preferred embodiments thereof and it is understood that many changes and modifications in the described embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.
