Drive system for piezoelectric pumps
A drive system, piezoelectric pump technology, applied in the direction of pumps, piston pumps, pump control, etc., can solve the problem of inability to effectively and accurately control the performance and output flow rate of piezoelectric pumps, poor applicability due to use, and difficult damage to piezoelectric pumps And other issues
Active Publication Date: 2019-11-05
MICROJET TECH
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The main purpose of this case is to provide a driving system for piezoelectric pumps, so as to solve the problem of the drive system control mode of the known piezoelectric pump with fixed frequency and voltage, the control mode of the drive system with fixed frequency and variable voltage, and the variable frequency. The control mode of the driving system with variable voltage and fixed voltage leads to the inability to effectively and accurately control the performance and output flow rate of the piezoelectric pump, which is easy to cause damage to the piezoelectric pump or is not easy to use and has poor applicability, which is different from the above-mentioned driving systems. The control method adopts the drive system control method with adjustable frequency and voltage to achieve the maximum compatibility and the easiest control of the pump drive circuit, which is used for the needs of this industry
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0052] Some typical embodiments embodying the features and advantages of the present application will be described in detail in the description in the following paragraphs. It should be understood that this case can have various changes in different aspects, all of which do not depart from the scope of this case, and the descriptions and drawings therein are used as illustrations in nature, rather than construed to limit this case.
[0053] see figure 1 , which is a schematic diagram of the circuit structure of the driving system of the preferred embodiment of the present case. Such as figure 1 As shown, the driving system 10 is used to drive a piezoelectric actuator 161 in a piezoelectric pump 16, and the driving system 10 includes a voltage conversion module 11, a frequency control circuit 12, a voltage switching module 13, and a detection module 14 And a voltage divider module 15.
[0054] The voltage conversion module 11 may be, but not limited to, constituted by a boos...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a driving system, in particular to a driving system of a piezoelectric pump. The driving system comprises a voltage conversion module which is used for converting a first direct voltage into a second direct voltage; a frequency control circuit which is used for finding the resonance working frequency of a piezoelectric actuator by means of circuit oscillation and correspondingly outputting a switching signal according to the resonance working frequency; a voltage switching module for converting the second direct voltage into an alternating voltage according to the switching signal so as to drive the piezoelectric actuator; and a detection module comprising an air pressure sensor and a microcontroller, wherein the air pressure sensor is used for detecting the air pressure flow in the piezoelectric pump and correspondingly outputting an air pressure flow detection value, and the microcontroller is used for receiving the air pressure flow detection value, and can control the voltage conversion module to adjust an output voltage so as to adjust the air pressure flow in the piezoelectric pump.
Description
【Technical field】 [0001] This case relates to a driving system, especially a driving system of a piezoelectric pump that outputs a variable voltage and controls the operating frequency of the piezoelectric actuator to be variable. 【Background technique】 [0002] Generally, when the piezoelectric pump is in operation, a drive system is usually required to provide electric energy to drive the piezoelectric actuator in the piezoelectric pump, so that the piezoelectric actuator performs periodic operation, and then drives the piezoelectric air pump to operate correspondingly. [0003] At present, there are roughly three types of drive systems for piezoelectric pumps. The first driving system is to output a fixed voltage, and at the same time control the operating frequency of the piezoelectric actuator to be fixed. The second driving system is to output a variable voltage while controlling the operating frequency of the piezoelectric actuator to be fixed. The third type of dri...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06F04B35/04
CPCF04B35/04F04B49/06
Inventor 陈世昌廖家淯黄启峰李伟铭韩永隆
Owner MICROJET TECH