[Summary]
Murata Manufacturing Co., Ltd. has realized the commercialization of the world's first ultra-thin waterproof piezoelectric speaker with a thickness of only 0.9 mm.
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[Background and development purposes]
In the summer of 2009, Japanese manufacturers released 46 new mobile phones for the Japanese domestic market. Among them, there are 10 waterproof mobile phones, accounting for 22% of the total. It is obvious that portable devices are required to have waterproof functions.
On the other hand, due to the wide range of applications of waterproof equipment, and in order to achieve waterproof function, there are certain difficulties in terms of technology and cost. Therefore, there are many problems to be solved in this work, among which How to deal with the broadcast hole is a particularly important topic. In a mobile phone using an electric speaker, the mobile phone manufacturer realizes its waterproof function by attaching a waterproof film to the speaker, but the waterproof film on the surface causes deterioration in sound quality, and the waterproof film itself and its mounting business are required. Invest a certain amount of cost.
In order to meet the ever-increasing demand for waterproofing equipment, Murata has further developed waterproof piezoelectric speakers and commercialized the products.
Using long-term accumulated piezoelectric knowledge and technology, Murata has successfully developed a waterproof piezoelectric speaker that does not use a waterproof membrane, and its waterproof performance has reached IPX7 level. Therefore, the product can not only reduce the cost of the waterproof film and its mounting business, but also can play high-quality music without blocking the waterproof film of the sound hole.
At the same time, this speaker is also an ultra-thin (0.9mm) product, which can help to improve the design freedom of the whole machine.
〠Features】
1 Ultra-thin, only 0.9mm thick, can increase design freedom.
2 There is no waterproof membrane, and its waterproof performance has reached IPX7 level.
・The material cost of the waterproof film can be reduced. ・The cost of mounting the waterproof film can be reduced. ・The sound quality due to the waterproof film does not deteriorate.
3 Since magnets are not used, there is no malfunction caused by sand iron, and equipment such as magnetic sensors is affected by electromagnetic interference.
[Use]
Suitable for portable devices such as mobile phones, portable music players, digital cameras, digital video cameras, IC recorders, e-books (e-books).
[Series product model]
VSLBG1914E1400-T0
[Production System]
From May 2010, the monthly production capacity was 5 million mass production activities.
〠sample price】
250 yen
[Piezoelectric Speakers] In addition to the commercialized products, our company also has the following types of piezoelectric speaker products.
・VSLBP1913E1400-T0
・VSLBP2115E1200-T0
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