阅读说明：本技术 一种压电-磁力按压洁面仪刷头 (Brush head of piezoelectric-magnetic pressing face cleaning instrument ) 是由 李晓蔚 吴越 兰莉莉 于 2018-07-13 设计创作，主要内容包括：本发明涉及一种压电-磁力按压洁面仪刷头,包括：基座、壳体、塑胶外壳和压电振子,其中：基座由基座底板、刷座和刷毛构成；基座底板上端面布置基座振子安装台,下端面与刷座连接；壳体为底面开口的中空圆柱壳体结构,在圆柱槽内侧面中部表面镶嵌固定磁铁；压电振子一端布置有自由端质量块,另一端安装在振子安装槽内；自由端磁性质量块与固定磁铁同极相对,位置相对；塑胶外壳性体,粘接在基座和壳体外侧,且壳体与基座间留有间隙。本发明采用磁力耦合压电惯性驱动,具有结构简单、容差性强、功率密度高、发热少、无摩擦副、无电磁波干扰等优点,提高了使用寿命,特别是采用磁力耦合后,转化为弹性势能的能量减少,从而提高了能量转化效率。(The invention relates to a brush head of a piezoelectric-magnetic pressing face cleaning instrument, which comprises: base, casing, plastic shell and piezoelectric vibrator, wherein: the base is composed of a base bottom plate, a brush holder and brush bristles; the upper end surface of the base bottom plate is provided with a base vibrator mounting table, and the lower end surface of the base bottom plate is connected with the brush holder; the shell is a hollow cylindrical shell structure with an opening at the bottom surface, and a fixed magnet is embedded on the middle surface of the inner side surface of the cylindrical groove; one end of the piezoelectric vibrator is provided with a free end mass block, and the other end of the piezoelectric vibrator is arranged in the vibrator mounting groove; the free end magnetic mass block is opposite to the homopolar fixed magnet in position; the plastic shell body is bonded on the outer sides of the base and the shell, and a gap is reserved between the shell and the base. The invention adopts magnetic coupling piezoelectric inertia driving, has the advantages of simple structure, strong tolerance, high power density, less heat generation, no friction pair, no electromagnetic wave interference and the like, prolongs the service life, and particularly reduces the energy converted into elastic potential energy after adopting magnetic coupling, thereby improving the energy conversion efficiency.)

1. A piezoelectric-magnetic force pressing face cleaning instrument brush head, comprising: base (1), casing (2), plastic shell (3), its characterized in that still includes piezoelectric vibrator (4), wherein:

the base (1) is composed of a base bottom plate (11), a brush holder (12) and brush bristles (13); the base bottom plate (11) is of a wafer structure, a rectangular boss is arranged on the upper end face of the wafer structure to serve as a base vibrator mounting table (111), the lower end face of the wafer structure is connected with a brush holder (12), and brush bristles (13) are arranged on the brush holder (12); two base vibrator installation grooves (1111) are symmetrically arranged on two side surfaces of the base vibrator installation table (111); the length direction of the vibrator mounting groove (1111) is parallel to the surface of the wafer of the base bottom plate (11); the shell (2) is a semi-cylindrical shell structure formed by dividing a hollow cylindrical shell with an opening at the bottom surface along a plane where a central line is located, and a fixed magnet (21) is embedded in the middle surface of the inner side surface of a semi-cylindrical groove; the plastic shell (3) is a hollow cylindrical elastic body with an opening at the bottom surface, is bonded at the outer sides of the base (1) and the shell (2), and a gap is reserved between the shell (2) and the base (1); the piezoelectric vibrator (4) is formed by adhering piezoelectric thin material (42) to the surface of an elastic substrate (41), a free-end magnetic mass block (43) is arranged at one end in the length direction, and the other end of the piezoelectric thin material is arranged in the vibrator mounting groove (1111); the free end magnetic mass block (43) is opposite to the fixed magnet (21) in the same pole and opposite in position.

2. The piezoelectric-magnetic force pressing face cleaning instrument brush head according to claim 1, characterized in that: the two piezoelectric vibrators (4) are identical in structure, and are single-chip piezoelectric vibrators formed by adhering one piece of piezoelectric sheet material (42) to the elastic substrate (41) with the free-end magnetic mass block (43) or double-chip piezoelectric vibrators formed by adhering two pieces of piezoelectric sheet material (42) to two sides of the elastic substrate (41) with the free-end magnetic mass block (43).

Technical Field

The invention belongs to the field of hairdressing or shaving equipment of personal or household articles in human life necessity, and particularly relates to a piezoelectric-magnetic force pressing face cleaning instrument brush head.

Background

At present, the electric facial cleaning instrument on the market mainly cleans facial skin by means of the operation of components such as a motor-driven brush and the like, and the existing motor-driven structural mode has complex structure, higher requirement on processing precision and higher processing cost, and seriously limits the application of the electric facial cleaning instrument in the production practice, so that the design of the piezoelectric-magnetic pressing facial cleaning instrument with simple structure and high energy conversion efficiency and convenient large-scale production is very important.

Disclosure of Invention

In order to solve the problems of complex structure, high processing precision requirement, high processing cost and low energy conversion efficiency of a driving part motor adopted in the existing face cleaning instrument, the piezoelectric-magnetic force pressing face cleaning instrument brush head is provided, the piezoelectric-magnetic force pressing face cleaning instrument brush head is composed of a base, a shell, a plastic shell and a piezoelectric vibrator, alternating voltage is applied to the piezoelectric vibrator, the piezoelectric vibrator is subjected to reciprocating bending deformation, the base is driven to generate vertical vibration under the reaction of the inertia force of a magnetic mass block, the skin is deeply cleaned in the vertical direction, and dirty objects are 'shot' out from deep pores. Compared with the mode that the motor adopted by the existing massage appliance drives the crank slider mechanism to form vibration, the magnetic coupling piezoelectric inertia driving mode is adopted, and the massage appliance has the advantages of simple structure, strong tolerance, high power density, less heat generation, no friction pair, no electromagnetic wave interference and the like, prolongs the service life, and particularly reduces the energy converted into the elastic potential energy after the magnetic coupling is adopted, thereby improving the energy conversion efficiency and saving more energy than the simple piezoelectric inertia driving mode.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention relates to a brush head of a piezoelectric-magnetic pressing face cleaning instrument, which comprises: base, casing, plastic casing and piezoelectric vibrator, wherein:

the base is formed by connecting the lower end surface of a base bottom plate with a brush holder for arranging brush bristles; a rectangular boss is arranged on the upper end face of the base bottom plate in a wafer structure to serve as a base vibrator mounting table; two vibrator mounting grooves are symmetrically arranged on two side surfaces of the base vibrator mounting table; the length direction of the vibrator mounting groove is parallel to the surface of the base bottom plate wafer; the shell is a semi-cylindrical shell structure formed by dividing a hollow cylindrical shell with an opening at the bottom surface along a plane where a central line is located, and a fixed magnet is embedded in the middle surface of the inner side surface of a semi-cylindrical groove; the plastic shell is a hollow cylindrical elastic body with an opening at the bottom surface, is bonded at the outer sides of the base and the shell, and a gap is reserved between the shell and the base; the piezoelectric vibrator is formed by adhering piezoelectric thin material on the surface of an elastic substrate and arranging a free-end magnetic quality block at one end in the length direction, and the other end of the piezoelectric vibrator is arranged in the vibrator mounting groove; the free end magnetic mass block is opposite to the fixed magnet in homopolar and opposite in position.

The two piezoelectric vibrators have the same structure, and adopt a single-chip piezoelectric vibrator formed by sticking a piece of piezoelectric thin material on an elastic substrate with a free-end magnetic mass block or a double-chip piezoelectric vibrator formed by sticking two pieces of piezoelectric thin material on two sides of the elastic substrate with the free-end magnetic mass block.

The during operation, handheld shell, piezoelectric vibrator fixes on the base, applys alternating voltage to piezoelectric vibrator, and it takes place reciprocal bending deformation, and piezoelectric vibrator drives the vibration that fixed brush hair takes place for the casing on base and the base under the reaction of free end magnetic mass inertia power at the flexural vibration in-process, forms the cleaning power, and the vertical direction is clean through carrying out deep skin, and the thing of will dirtying is followed pore depths "clapped" and is gone out. In the motion process of each period, the electric energy is converted into mechanical energy by the piezoelectric material, the mechanical energy comprises mechanical energy stored by bending the piezoelectric vibrator and kinetic energy of the system, after the magnetic structure is added, when the piezoelectric vibrator is bent, the elastic potential energy is increased, but the potential energy between magnetic bodies in the system is reduced, and the two are mutually complemented, so that the mechanical energy converted into the kinetic energy of the system is increased, and the energy conversion efficiency is improved.

Drawings

Fig. 1 is a brush head composition structure of a piezoelectric-magnetic force pressing face cleaning instrument of the invention.

Fig. 2 is a schematic sectional structure diagram of a brush head of the piezoelectric-magnetic pressing facial cleanser of the invention.

Fig. 3 is a schematic view of the structure of the base used in the present invention.

Fig. 4 is a schematic view of the structure of the housing employed in the present invention.

Detailed Description

Referring to fig. 1, 2, 3 and 4, a piezoelectric-magnetic force pressing facial cleanser brush head of the present invention comprises: base 1, casing 2, plastic shell 3 and piezoelectric vibrator 4 constitute, wherein:

the base 1 is composed of a base bottom plate 11, a brush holder 12 and brush bristles 13; the base bottom plate 11 is of a wafer structure, a rectangular boss is arranged on the upper end face of the wafer structure to serve as a base vibrator mounting table 111, the lower end face of the wafer structure is connected with the brush holder 12, and brush bristles 13 are arranged on the brush holder 12; two base vibrator mounting grooves 1111 are symmetrically arranged on two side surfaces of the base vibrator mounting table 111; the length direction of the vibrator mounting groove 1111 is parallel to the surface of the wafer of the base bottom plate 11; the shell 2 is a semi-cylindrical shell structure formed by dividing a hollow cylindrical shell with an opening at the bottom surface along a plane where a central line is located, and a fixed magnet is embedded in the middle surface of the inner side surface of a semi-cylindrical groove; the plastic shell 3 is a hollow cylindrical elastic body with an opening at the bottom surface, is bonded at the outer sides of the base 1 and the shell 2, and a gap is reserved between the shell and the base; the piezoelectric vibrator 4 is formed by adhering piezoelectric thin material 42 on the surface of an elastic substrate 41 and arranging a free end magnetic quality block 43 at one end in the length direction, and the other end is arranged in the vibrator mounting groove 1111; the free end magnetic quality block 43 is opposite to the fixed magnet 21 in the same pole and opposite in position.

During operation, handheld plastic shell 3, piezoelectric vibrator 4 is fixed on the base, apply alternating voltage to piezoelectric vibrator 4, it takes place reciprocal bending deformation, piezoelectric vibrator 4 drives under the reaction of free end magnetic mass 43 inertial force and drives brush hair 13 fixed on base 1 and the base 1 and take place for the vertical vibration of casing 2 in the bending vibration in-process, form the cleaning performance, the vertical direction is through carrying out deep skin cleanness, go out dirty thing from pore depths "bat".