Piezoelectric fan, radiator and electronic equipment
A piezoelectric fan and fan technology, which is applied in the construction of electrical equipment components, mechanical equipment, cooling/ventilation/heating transformation, etc., can solve the problems of unstable output airflow and low service life
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Embodiment 1
[0045] Such as Figure 1-9 As shown, this embodiment proposes a piezoelectric fan, which includes a fan body and a piezoelectric element 1. The piezoelectric element 1 is arranged inside the fan body. The piezoelectric element 1 deforms and squeezes fluid to be discharged from the fan body to achieve air flow. role.
[0046] The fan body includes a casing 2 and a support 3 , the casing 2 is open at one end, and the support 3 can be inserted into the casing 2 from the opening of the casing 2 . The casing 2 is provided with an inlet 21 and an outlet 22 , and both the inlet 21 and the outlet 22 are arranged at an end of the casing 2 away from the opening. Specifically, the support member 3 is inserted into the housing 2, there is a gap between the outer end surface of the inner end of the support member 3 inserted into the housing 2 and the inner wall of the housing 2, and the inner end of the support member 3 and the inner wall of the housing 2 A jet cavity 23 is formed, the i...
Embodiment 2
[0075] Such as Figure 10 As shown, this embodiment is basically the same as Embodiment 1, the only difference is that there are two piezoelectric elements 1 and two electrode plates 6 in this embodiment, and no separator is required. Specifically, the two piezoelectric elements 1 are arranged symmetrically inside the support member 3 , the substrates 12 of the two piezoelectric elements 1 are arranged close to and spaced apart from each other, and a generating cavity 32 is formed between the two substrates 12 . The upper and lower ends of the supporting member 3 are provided with electrode plates 6, and the two electrode plates 6 are connected to the current for the two piezoelectric elements 1 respectively, and a buffer is formed between the ends of the two piezoelectric elements 1 and the inner wall of the supporting member 3 Cavity 33.
[0076] When the two piezoelectric elements 1 act on the generating chamber at the same time, the pumping force is enhanced, and the flow...
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