CN204633639U - A micro-nano motor - Google Patents

Abstract

The utility model discloses micro-nano motor, comprise a kind of micro-nano motor, comprise shell, rotating shaft, longitudinal piezoelectric ceramic piece, circumferential piezoelectric ceramic piece, friction plate and rotating disk; Described rotating shaft runs through the center of described shell, described rotating shaft is fixed with described rotating disk, described enclosure is also provided with a support, one end of described longitudinal piezoelectric ceramic piece is fixing on the bracket, the other end of described longitudinal piezoelectric ceramic is fixedly connected with one end of described circumferential piezoelectric ceramic, and the other end of described circumferential piezoelectric ceramic is fixedly connected described friction plate.The utility model can make the size of motor very little, and the power consumption of motor is extremely low.

Description

A micro-nano motor

【Technical field】

The utility model relates to the technical field of micro-electromechanical devices, in particular to the technical field of micro-nano motors.

【Background technique】

Micro-Electro-Mechanical Systems (MEMS), also known as Micro-Electro-Mechanical Systems, is developed on the basis of microelectronics technology (semiconductor manufacturing technology), integrating lithography, corrosion, thin film, LIGA, silicon micromachining, non-silicon micromachining and High-tech electronic and mechanical devices produced by precision machining and other technologies. With the continuous development of MEMS, micro-electro-mechanical systems are transforming from micro-electro-mechanical systems to micro-mechanical electronic systems. More and more tiny movable parts are being integrated inside MEMS, and the motor requirements for driving tiny parts are low. Power consumption, low heat generation, and small size directly exclude most of the traditional motors currently on the market, and a new type of tiny motor is needed as the future engine of MEMS.

【Content of utility model】

The purpose of the utility model is to solve the problems in the prior art, and propose a micro-nano motor, which can make the size of the motor very small, and the power consumption of the motor is extremely low.

In order to achieve the above object, the utility model proposes a micro-nano motor, which includes a casing, a rotating shaft, a longitudinal piezoelectric ceramic sheet, a circumferential piezoelectric ceramic sheet, a friction sheet and a turntable; the rotating shaft runs through the center of the casing, and the The turntable is fixed on the rotating shaft, and a bracket is arranged inside the housing, one end of the longitudinal piezoelectric ceramic sheet is fixed on the bracket, and the other end of the longitudinal piezoelectric ceramic sheet is connected to the circumferential piezoelectric ceramic sheet. One end of the electric ceramic is fixedly connected, and the other end of the circumferential piezoelectric ceramic is fixedly connected with the friction plate.

Preferably, the longitudinal piezoelectric ceramic sheet is formed by pasting two piezoelectric ceramic thin sheets with opposite polarities.

Preferably, the circumferential piezoelectric ceramic sheet is formed by pasting two piezoelectric ceramic sheets with opposite polarities.

Preferably, the circumferential piezoelectric ceramic sheet and the friction sheet are bonded and fixed by epoxy resin.

Preferably, the lengths of the longitudinal piezoelectric ceramic sheets and the circumferential piezoelectric ceramic sheets are both 2-3 mm.

Beneficial effects of the utility model: the utility model combines the micro-sized longitudinal piezoelectric ceramic sheet and the circumferential piezoelectric ceramic sheet and applies them to the motor power device, so that the overall size of the motor is greatly reduced, and the piezoelectric ceramic sheet is adopted Ceramics are used as the power to drive the motor, so that there is no current during the operation of the motor, and the overall heat generation of the motor is extremely low, which is suitable for the operation of precise micro-nano parts.

The features and advantages of the utility model will be described in detail through embodiments in conjunction with the accompanying drawings.

【Description of drawings】

Fig. 1 is the overall structural diagram of the micro-nano motor of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the micro-nano motor of the present invention.

In the figure: 1-housing, 2-rotating shaft, 3-bracket, 4-longitudinal piezoelectric ceramic sheet, 5-circumferential piezoelectric ceramic sheet, 6-friction plate, 7-turntable.

【Detailed ways】

Referring to Fig. 1 and Fig. 2, the utility model includes a casing 1, a rotating shaft 2, a longitudinal piezoelectric ceramic sheet 4, a circumferential piezoelectric ceramic sheet 5, a friction sheet 6 and a turntable 7; the rotating shaft 2 runs through the casing 1 In the center, the turntable 7 is fixed on the rotating shaft 2, and a support 3 is arranged inside the housing 1, and one end of the longitudinal piezoelectric ceramic sheet 4 is fixed on the support 3, and the longitudinal piezoelectric ceramic The other end of the sheet 4 is fixedly connected to one end of the circumferential piezoelectric ceramic sheet 5 , and the other end of the circumferential piezoelectric ceramic sheet 5 is fixedly connected to the friction sheet 6 . The longitudinal piezoelectric ceramic sheet 4 is formed by pasting two piezoelectric ceramic sheets with opposite polarities. The circumferential piezoelectric ceramic sheet 5 is formed by pasting two piezoelectric ceramic sheets with opposite polarities. The circumferential piezoelectric ceramic sheet 5 and the friction sheet 6 are bonded and fixed by epoxy resin. The lengths of the longitudinal piezoelectric ceramic sheet 4 and the circumferential piezoelectric ceramic sheet 5 are both 2-3 mm.

The working process of the utility model:

During the working process of the micro-nano motor of the utility model, the rotation of the rotating shaft 2 is driven by the turntable 7, and the rotation of the turntable 7 is driven by the sliding friction of the friction plate 6. In one working cycle, when the longitudinal piezoelectric ceramic sheet 4 is applied After a certain voltage, the longitudinal piezoelectric ceramic sheet 4 bends downward, driving the circumferential piezoelectric ceramic sheet 5 and the friction sheet 6 to move downward, so that the joint between the friction sheet 6 and the turntable 7, through the circumferential piezoelectric ceramic sheet 5 After a certain voltage is applied, the circumferential piezoelectric ceramic sheet 5 bends in a direction parallel to the turntable, so that the friction sheet 6 drives the turntable 7 to rotate; when the circumferential piezoelectric ceramic sheet 5 bends to the maximum position, disconnect the pair The voltage applied by the longitudinal piezoelectric ceramic sheet 4, at this time, the longitudinal piezoelectric ceramic sheet 4 resets, drives the circumferential piezoelectric ceramic sheet 5 and the friction sheet 6 to move upward, makes the friction sheet 6 leave the turntable 7, and then disconnects the applied voltage on the peripheral The voltage applied to the piezoelectric ceramic sheet 5 causes the circumferential piezoelectric ceramic sheet 5 and the friction sheet 6 to reset to complete a cycle of motion. At this time, the above process is repeated, and the rotating shaft 2 of the motor will continue to rotate.

In the utility model, the overall size of the motor is greatly reduced by combining the micro-sized longitudinal piezoelectric ceramic sheet and the circumferential piezoelectric ceramic sheet and applying them to the motor power device, and the piezoelectric ceramic is used as the driving force of the motor , so that there is no current during the operation of the motor, and the overall heat generation of the motor is extremely low, which is suitable for the operation of precise micro-nano parts.

The above-mentioned embodiment is an illustration of the utility model, not a limitation of the utility model, and any scheme after a simple transformation of the utility model belongs to the protection scope of the utility model.

Claims (5)

1. A kind of micro-nano motor, it is characterized in that: comprise housing (1), rotating shaft (2), longitudinal piezoelectric ceramic sheet (4), circumferential piezoelectric ceramic sheet (5), friction plate (6) and rotating disk ( 7); the rotating shaft (2) runs through the center of the casing (1), the rotating disk (7) is fixed on the rotating shaft (2), and a bracket (3) is also arranged inside the casing (1) , one end of the longitudinal piezoelectric ceramic sheet (4) is fixed on the support (3), the other end of the longitudinal piezoelectric ceramic sheet (4) and one end of the circumferential piezoelectric ceramic sheet (5) Fixedly connected, the other end of the circumferential piezoelectric ceramic sheet (5) is fixedly connected to the friction sheet (6). 2. The micro-nano motor according to claim 1, characterized in that: the longitudinal piezoelectric ceramic sheet (4) is formed by pasting two piezoelectric ceramic sheets with opposite polarities. 3. The micro-nano motor according to claim 1, characterized in that: the circumferential piezoelectric ceramic sheet (5) is formed by pasting two piezoelectric ceramic sheets with opposite polarities. 4. The micro-nano motor according to claim 1, characterized in that: the circumferential piezoelectric ceramic sheet (5) and the friction sheet (6) are bonded and fixed by epoxy resin. 5. The micro-nano motor according to claim 1, characterized in that: the lengths of the longitudinal piezoelectric ceramic sheet (4) and the circumferential piezoelectric ceramic sheet (5) are both 2-3 mm.