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Projection device

A technology for projection devices and accommodating spaces, applied in projection devices, optics, instruments, etc., can solve problems such as insufficient space, poor sound effects, and insufficient resonance chambers for projectors, etc., to achieve improved sound effects, high-efficiency heat dissipation mechanisms, The effect of improving the utilization rate of space

Active Publication Date: 2015-09-30
QISDA OPTRONICS (SUZHOU) CO LTD +1
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AI Technical Summary

Problems solved by technology

However, the speaker system of conventional projectors usually achieves the function of sound generation by adding speakers, and is often limited by heat dissipation, internal air flow, and insufficient space, resulting in poor sound effects.
[0003] For example, conventional projectors usually find an area equivalent to the diameter of the speaker on the surface of the housing to install the speaker. However, there is not enough resonance cavity inside the projector, so that the performance of the speaker unit at low and intermediate frequencies Poor, unable to meet user needs

Method used

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Embodiment Construction

[0021] The present invention provides a projection device, especially a projection device with a structural design of a sound box, so as to provide a resonance space and improve the sound effect of the speaker. Furthermore, the projection device of the present invention integrates circuit boards with lower power / temperature or part of the circuit boards in the speaker cavity without affecting the heat dissipation airflow, so as to provide resonance for enhanced sound effects in a limited device space. Space, effectively improve the utilization of space. Embodiments of the projection device of the present invention will be described in detail later with reference to the drawings.

[0022] like figure 1 As shown, the projection device 10 includes a housing 100, an optical-mechanical system 200, a speaker 300 and a circuit board 400, wherein the housing 100 includes a first housing part 110 and a second housing part 120, and the first housing part 110 and the second housing part...

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Abstract

The invention relates to a projection device which comprises a casing, an optical-mechanical system, a speaker and a circuit board, wherein the casing comprises a first casing part and a second casing part which are adjacent to each other, so that the first casing part has an accommodating space, and a resonance space is defined by the second casing part and serves as a speaker box cavity; the optical-mechanical system is arranged in the accommodating space; the speaker is arranged at the second casing part and faces the outer side of the casing; the circuit board is arranged in the speaker box cavity and electrically connected with the optical-mechanical system, and the circuit board is at least part of at least one of a power supply circuit board, a master control circuit board and an input / output circuit board of the projection device.

Description

technical field [0001] The invention relates to a projection device, in particular to a projection device with a structural design of a sound box. Background technique [0002] Conventional projectors are generally purely used as video devices for projecting images to target screens, or further built-in speaker systems to provide sound effects at the same time. However, the speaker system of conventional projectors usually achieves the function of sound generation by adding speakers, and is often limited by heat dissipation, internal air flow, and insufficient space, resulting in poor sound effects. [0003] For example, conventional projectors usually find an area equivalent to the diameter of the speaker on the surface of the housing to install the speaker. However, there is not enough resonance cavity inside the projector, so that the performance of the speaker unit at low and intermediate frequencies Poor, unable to meet user needs. [0004] Therefore, how to improve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B31/00G03B21/16
Inventor 林奇成
Owner QISDA OPTRONICS (SUZHOU) CO LTD
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