Thermal management analysis of serial-connection three-chamber piezoelectric pump

He, Lipeng; Wu, Xiaoqiang; Zhang, Zheng; Wang, Jingran; Hu, Dianbin; Cheng, Guangming

doi:10.1007/s12206-021-0922-4

Cited by 5 publications

(1 citation statement)

References 26 publications

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“…The other way is to increase the number of pump chambers, such as using multiple chambers connected in series [21,22], in parallel [23], or in a hybrid manner [24], to enhance the overall output flow rate or backpressure of the piezoelectric pump. He et al developed a piezoelectric pump with three chambers connected in series for a loop cooling system, and the pump had a flow rate most up to 690.6 ml min −1 at an input sinusoidal voltage of 220 V pp and a drive frequency of 110 Hz [25]. Wang et al proposed a piezoelectric micropump with double pump chambers, which obtained the maximum backpressure of 7.8 kPa and the maximum flow rate of 1.5 ml min −1 under in-phase drive mode when driven by a 125 V pp square-wave voltage with 250 Hz excitation frequency [26].…”

Section: Introductionmentioning

confidence: 99%

Development of an inertia-driven resonant piezoelectric stack pump based on the flexible support structure

Chen,

Jin,

Gao

et al. 2024

Smart Mater. Struct.

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This paper proposes an inertia-driven resonant piezoelectric stack pump based on a flexible support structure to solve the problem that the piezoelectric stack cannot effectively drive the diaphragm pump to transport liquid due to too small output displacement and too high resonant frequency when one end is fixed. Under the inertial force generated by the vibration of the piezoelectric stack’s mass center during its deformation, the whole piezoelectric stack will vibrate with the flexible support structure; and a large displacement and inertial force can be achieved to drive the pump at the resonant frequency. Piezoelectric pumps are designed with a diaphragm pump and a piezoelectric stack based on the flexible support structure. The piezoelectric vibrator includes a piezoelectric stack, a preloading component and a flexible support plate. A fixed support plate and three flexible support plates with different stiffnesses were fabricated and assembled with the same piezoelectric stack and diaphragm pump respectively to construct four piezoelectric pump prototypes with different resonant frequencies. The temperature rise characteristics of the piezoelectric stack were experimentally studied to determine the safe range of the driving voltage and frequency. Then the output performances of the piezoelectric pumps were tested. Under a sinusoidal driving voltage of 100 Vpp, the piezoelectric pump based on the fixed support structure cannot pump water, while the piezoelectric pumps based on the flexible support structure achieved the maximum flow rates of 89.0 ml/min, 123.4 ml/min and 197.4 ml/min at the resonant frequencies of 262 Hz, 297 Hz and 354 Hz, and the maximum backpressures of 4.4 kPa, 7.5 kPa and 11.0 kPa at 266 Hz, 309 Hz and 365 Hz.

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Section: Introductionmentioning

confidence: 99%

Development of an inertia-driven resonant piezoelectric stack pump based on the flexible support structure

Chen,

Jin,

Gao

et al. 2024

Smart Mater. Struct.

View full text Add to dashboard Cite

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Experimental study on the bionic microchannel heat sink integrated with a piezoelectric pump

Huang,

Li,

Yang

et al. 2024

Applied Thermal Engineering

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Research on a large opening and high flow rate piezoelectric pump with straight arm wheeled check valve

et al. 2022

Review of Scientific Instruments

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Piezoelectric pumps are applied in cooling systems of microelectronic devices because of their small size. However, cooling efficiency is limited by the low flow rate. A straight arm wheeled check valve made of silica gel was proposed, which can improve the flow rate of piezoelectric pumps, solve the influence of glue aging on the sealing ability of a wheeled check valve, and reduce the size of piezoelectric pumps. This paper discusses the influence of the valve arm number (N = 2, 3, and 4), the valve arm width (W = 1.0, 1.2, and 1.4 mm), and the valve thickness (T = 0.6, 0.8, and 1.0 mm) on the flow rate characteristics of piezoelectric pumps. When valve opening rises, the flow rate increases. The simulation results show that valves with 2 valve arm number, 0.6 mm valve thickness, and 1.0 mm valve arm width have maximum valve opening. The experimental results show that piezoelectric pumps with different valve parameters have different optimal frequencies. In addition, the maximum flow rate is 431.6 ml/min at 220 V and 70 Hz. This paper provides a reference for the application of piezoelectric pumps in cooling systems.

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Thermal management analysis of serial-connection three-chamber piezoelectric pump

Cited by 5 publications

References 26 publications

Development of an inertia-driven resonant piezoelectric stack pump based on the flexible support structure

Development of an inertia-driven resonant piezoelectric stack pump based on the flexible support structure

Experimental study on the bionic microchannel heat sink integrated with a piezoelectric pump

Research on a large opening and high flow rate piezoelectric pump with straight arm wheeled check valve

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