CN220459771U - Ultrasonic assembly and ultrasonic beauty instrument - Google Patents

Abstract

The utility model relates to an ultrasonic assembly and an ultrasonic beauty instrument, wherein the ultrasonic assembly can be applied to the beauty instrument, the physiotherapy instrument and the like. The ultrasonic assembly comprises a piezoelectric ceramic body, a first electrode layer and a second electrode layer, wherein the piezoelectric ceramic body is provided with a first surface and a second surface which are opposite to each other, the first electrode layer is connected to the first surface, the second electrode layer comprises at least two sub-electrodes which are arranged at intervals, the sub-electrodes are connected to the second surface, and all the sub-electrodes are electrically connected. The first electrode layer and the second electrode layer can be used for applying voltage to the piezoelectric ceramic body positioned between the first electrode layer and the second electrode layer so as to generate ultrasonic waves, and the piezoelectric ceramic body corresponding to each sub-electrode forms a vibration source, so that the vibration sources with the same number as the sub-electrodes can be obtained, and the effective working area of the ultrasonic assembly is increased.

Description

Ultrasonic assembly and ultrasonic beauty instrument

Technical Field

The utility model relates to the technical field of ultrasonic beauty treatment instruments, in particular to an ultrasonic assembly and an ultrasonic beauty treatment instrument.

Background

The ultrasonic wave is a mechanical wave with the frequency exceeding 20KHz, has the characteristics of strong power and large energy, and can enable local tissue cells to be subjected to micro-massage when acting on skin, thereby improving the circulation of local blood and lymph fluid, enhancing the permeability of cells, improving the metabolism and regeneration capacity of tissues, softening tissues, stimulating the nervous system and cell functions, and enabling the skin to be rich in luster and elasticity.

Ultrasonic beauty instruments generally generate ultrasonic waves through an ultrasonic assembly. In the related art, an ultrasonic assembly for a cosmetic instrument is generally in a shape of a circular block, and mechanical vibration generated by the ultrasonic assembly is concentrated in a central region of the circular block, so that an effective working area is small.

Disclosure of Invention

The embodiment of the utility model provides an ultrasonic assembly and an ultrasonic beauty instrument so as to improve the effective working area of the ultrasonic assembly.

An ultrasonic assembly, comprising:

a piezoelectric ceramic body having opposed first and second surfaces;

the first electrode layer is arranged on the first surface; and

the second electrode layer comprises at least two sub-electrodes arranged at intervals, wherein the sub-electrodes are arranged on the second surface and all the sub-electrodes are electrically connected.

In one embodiment, the second electrode layer includes a connection layer electrically connected between two adjacent sub-electrodes, and the width of the connection layer is smaller than the width of the sub-electrodes.

In one embodiment, the sub-electrodes are circular, and all the sub-electrodes have equal areas.

In one embodiment, the number of the sub-electrodes is more than 4, one of the sub-electrodes is located in the central area of the second surface, and the rest of the sub-electrodes are uniformly distributed at intervals on the periphery of the sub-electrodes in the central area; or all the sub-electrodes are annularly distributed on the second surface at uniform intervals.

In one embodiment, the sum of the areas of all the sub-electrodes is smaller than the area of the first electrode layer.

In one embodiment, the area of the first electrode layer is equal to the area of the first surface.

In one embodiment, one of the sub-electrodes is connected with an extension portion, the extension portion extends to the edge of the second surface, the ultrasonic assembly comprises a first welding area and a second welding area, the first welding area is arranged at one end, far away from the sub-electrode, of the extension portion and is electrically connected with the extension portion, the second welding area and the first welding area are arranged on the second surface and are arranged at intervals, and the second welding area is electrically connected with the first electrode layer.

In one embodiment, the ultrasonic assembly includes a contact having a receiving groove, the piezoelectric ceramic body and the first electrode layer are received in the receiving groove, and the contact covers a side of the first electrode layer remote from the second electrode layer.

In one embodiment, the contact is a stainless steel member, and the ultrasonic assembly includes an insulating sheet disposed between the first electrode layer and the contact.

An ultrasonic cosmetic apparatus comprising a housing and an ultrasonic assembly as claimed in any preceding claim, the ultrasonic assembly being connected to the housing.

The ultrasonic assembly and the ultrasonic beauty instrument can be applied to beauty instruments, physiotherapy instruments and the like. The ultrasonic assembly comprises a piezoelectric ceramic body, a first electrode layer and a second electrode layer, wherein the piezoelectric ceramic body is provided with a first surface and a second surface which are opposite to each other, the first electrode layer is connected to the first surface, the second electrode layer comprises at least two sub-electrodes which are arranged at intervals, the sub-electrodes are connected to the second surface, and all the sub-electrodes are electrically connected. The first electrode layer and the second electrode layer can be used for applying voltage to the piezoelectric ceramic body positioned between the first electrode layer and the second electrode layer so as to generate ultrasonic waves, and the piezoelectric ceramic body corresponding to each sub-electrode forms a vibration source, so that the vibration sources with the same number as the sub-electrodes can be obtained, and the effective working area of the ultrasonic assembly is increased.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a partial schematic view of an ultrasonic cosmetic instrument according to an embodiment;

FIG. 2 is an exploded view of an ultrasonic assembly according to one embodiment;

FIG. 3 is a schematic view of an ultrasonic assembly according to one embodiment;

FIG. 4 is a top view of an ultrasonic assembly according to one embodiment;

FIG. 5 is a cross-sectional view of an embodiment of the ultrasonic assembly shown in FIG. 4 taken along line A-A;

fig. 6 is a cross-sectional view of another embodiment of the ultrasonic assembly shown in fig. 4, taken along A-A.

Reference numerals:

the ultrasonic cosmetic instrument 10, the ultrasonic assembly 100, the first bonding area 101, the second bonding area 103, the piezoelectric ceramic body 110, the first surface 110a, the second surface 110b, the first electrode layer 120, the second electrode layer 130, the sub-electrode 131, the connection layer 133, the extension 135, the contact 140, the receiving groove 140a, the insulating sheet 150, and the case 200.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present utility model discloses an ultrasonic beauty instrument 10 which can be used to generate ultrasonic waves and to minutely massage local tissue cells when contacting the skin, improve circulation of local blood and lymph, enhance permeability of cells, enhance metabolism and regeneration ability of tissues, soften tissues, stimulate nervous system and cell functions, and make the skin shiny and elastic.

The ultrasonic cosmetic apparatus 10 may include an ultrasonic assembly 100 and a housing 200, the ultrasonic assembly 100 for generating ultrasonic waves when energized. The housing 200 is hollow and is used for installing and fixing the ultrasonic assembly 100, and supporting and protecting the ultrasonic assembly 100. The housing 200 may also be provided with keys, power interfaces, etc., wherein the keys may be used to control the operational state of the ultrasound device 10, such as to control the start-stop, vibration mode, etc., of the ultrasound device 10. The power interface may then be used to connect to an external power source to power the ultrasound device 10.

Of course, in other embodiments, the ultrasonic assembly 100 may also be used in a therapeutic apparatus, such as a physiotherapy apparatus, for example, that uses ultrasonic waves to treat or massage the local tissue of the user to assist in recovery.

Referring to fig. 2 and 3, in some embodiments, the ultrasonic assembly 100 includes a piezoelectric ceramic body 110, a first electrode layer 120 and a second electrode layer 130, where the piezoelectric ceramic body 110 has a first surface 110a and a second surface 110b opposite to each other, the first electrode layer 120 is disposed on the first surface 110a, the second electrode layer 130 includes at least two sub-electrodes 131 disposed at intervals, the sub-electrodes 131 are disposed on the second surface 110b, and all the sub-electrodes 131 are electrically connected, i.e., all the sub-electrodes 131 are electrically conducted with each other.

The ultrasonic assembly 100 may include a contact 140, the contact 140 having a receiving groove 140a, the piezoelectric ceramic body 110 and the first electrode layer 120 being received in the receiving groove 140a, the contact 140 covering a side of the first electrode layer 120 remote from the second electrode layer 130. The shape of the receiving groove 140a matches the shape of the piezoelectric ceramic body 110. For example, in the embodiment shown in fig. 2 and 3, the piezoelectric ceramic body 110 has a round block shape, and the receiving groove 140a is a round groove. In other embodiments, the piezoelectric ceramic body 110 may have other shapes, such as a rectangle, or a rounded rectangle, or a triangle, or other polygons, or a special shape (such as a heart shape), etc., and the shape of the receiving groove 140a is adapted to facilitate assembling and positioning of the piezoelectric ceramic body 110 to the contact 140.

The contact 140 may be mounted to the housing 200 of the ultrasonic cosmetic instrument 10. The surface of the contact 140 on the side facing away from the ultrasonic assembly 100 may be made smoother and used to conform to the skin. Upon energization of the ultrasonic assembly 100 to generate ultrasonic waves, the ultrasonic waves can be conducted to the skin through the contact 140, thereby providing a fine massage to the skin. In some embodiments, the contact 140 is a hardware, such as stainless steel. In other embodiments, the contact 140 may be an aluminum piece. Of course, the contact 140 may also be a non-metallic member such as a silicone member.

It will be appreciated that the contact 140 may be hollow frustoconical, i.e. the outer profile of its cross-section may be circular. Of course, in other embodiments, the outer contour of the cross-section of the contact 140 may take other shapes, such as oval or rectangular or polygonal, etc.

When the first electrode layer 120 and the second electrode layer 130 are powered on, all the sub-electrodes 131 are turned on, and any one of the sub-electrodes 131 and the corresponding portion of the piezoelectric ceramic body 110 and the first electrode layer 120 may be regarded as constituting one ultrasonic vibration unit, and generate ultrasonic waves. Thus, the plurality of sub-electrodes 131 correspondingly obtain the plurality of ultrasonic vibration units, and the number of the ultrasonic vibration units is equal to that of the sub-electrodes 131, so that a plurality of vibration sources are formed in a single ultrasonic assembly 100, the effective vibration area of the ultrasonic assembly 100 is enlarged, the acting area on the skin can be increased, and the customer experience is improved.

In the embodiment shown in fig. 2 and 3, the sub-electrodes 131 are circular, and the areas of all the sub-electrodes 131 are equal. It will be appreciated that equal areas should be considered for the presence of engineering errors and should not be construed as strictly equal in value. When the areas of all the sub-electrodes 131 are equal, the uniformity of the vibrations of the ultrasonic vibration sources corresponding to all the sub-electrodes 131 is good. Of course, in other embodiments, the areas of the sub-electrodes 131 may not be equal.

In the related art, the first electrode layer 120 generally covers the entire first surface 110a, and the second electrode layer 130 covers the entire second surface 110b. Due to the mechanical vibration characteristics of the ultrasonic wave, when a voltage is applied to the piezoelectric ceramic body 110 through the first electrode layer 120 and the second electrode layer 130, ultrasonic vibration energy generated by the ultrasonic module 100 is concentrated in the central region of the piezoelectric ceramic body 110, and vibration of the piezoelectric ceramic body 110 at the periphery of the central region is rapidly attenuated from the central region to the edge. The ultrasonic assembly 100 of this structure also has a relatively remarkable massaging effect of the central region of the contact 140 during use by the user, but has no remarkable massaging effect of the outer periphery of the central region.

After the ultrasonic assembly 100 of the scheme is adopted, the sub-electrodes 131 can be distributed in the area outside the central area of the piezoelectric ceramic body 110, so that a plurality of ultrasonic vibration sources are obtained, the effective vibration area of the ultrasonic assembly 100 is improved, the action area on the skin is improved, and the customer experience is improved.

With continued reference to fig. 2 and 3, the second electrode layer 130 may include a connection layer 133 electrically connected between two adjacent sub-electrodes 131, and a width of the connection layer 133 is smaller than a width of the sub-electrodes 131. It will be appreciated that the width of the connection layer 133 is much smaller than the width of the sub-electrode 131, for example, the width of the sub-electrode 131 ranges from 1.5mm to 2.0mm, and the thickness thereof may be comparable to the thickness of the sub-electrode 131. When the width range of the sub-electrode 131 is within the range, the reliability of the electrical connection of the adjacent sub-electrode 131 can be ensured, and the adjacent sub-electrode 131 can be prevented from being equivalent to a vibration source due to the too wide connection layer 133.

In the embodiment of the present utility model, the number of the connection layers 133 between any two sub-electrodes 131 is not more than 1, and this arrangement can save the material of the connection layers 133, and prevent the adjacent sub-electrodes 131 from being equivalent to one vibration source due to the over-wide connection layers 133 while ensuring the reliability of the electrical connection of the adjacent sub-electrodes 131. For example, in the embodiment shown in fig. 2, the sub-electrodes 131 include 4 sub-electrodes 131, one sub-electrode 131 is located in the central area of the second surface 110b, and the remaining sub-electrodes 131 are uniformly arranged at intervals on the outer periphery of the sub-electrode 131 in the central area, and the sub-electrodes 131 in the central area are electrically connected to the 3 sub-electrodes 131 on the outer periphery in a one-to-one correspondence manner through 3 connection layers 133, so that all the sub-electrodes 131 are electrically connected. In other embodiments, all of the sub-electrodes 131 may be arranged in a ring shape at uniform intervals on the second surface 110b.

Of course, in other embodiments, more than two sub-electrodes 131 may be arranged on the second surface 110b.

Further, in some embodiments, the sum of the areas of all sub-electrodes 131 is smaller than the area of the first electrode layer 120. For example, in some embodiments, the area of the first electrode layer 120 is equal to the area of the first surface 110a, and each sub-electrode 131 has a corresponding area of the first electrode layer 120 on the first surface 110a side, so that the same number of ultrasonic vibration units as the number of sub-electrodes 131 can be configured. Of course, in other embodiments, the area of the first electrode layer 120 may be smaller than the area of the first surface 110 a.

With continued reference to fig. 2 and 3, one of the sub-electrodes 131 is connected with an extension portion 135, the extension portion 135 extends to the edge of the second surface 110b, the ultrasonic assembly 100 includes a first welding area 101 and a second welding area 103, the first welding area 101 is disposed at one end of the extension portion 135 away from the sub-electrode 131 and is electrically connected with the extension portion 135, the second welding area 103 and the first welding area 101 are disposed on the second surface 110b and are spaced apart from each other, and the second welding area 103 is electrically connected with the first electrode layer 120. The first electrode layer 120 may partially bypass the edge of the piezoceramic body 110 and extend to the second surface 110b, and the second bonding region 103 may form an electrical connection with the first electrode layer 120 on the second surface 110b. Since the first bonding area 101 and the second bonding area 103 are both disposed on the second surface 110b, after the wires for connecting to the power supply are bonded to the first bonding area 101 and the second bonding area 103, the wires are disposed on the same side of the piezoceramic body 110. The structure is convenient for welding and fixing the wires with the first welding area 101 and the second welding area 103, wiring of the wires can be facilitated, and damage to the wires caused by extrusion of the shell 200 to the wires is avoided.

Referring to fig. 4 and 5, in an embodiment in which the contact 140 is a hardware such as stainless steel, the first electrode layer 120 may be attached to the contact 140, thereby using the hardware as one electrode of the piezoelectric ceramic body 110 to simplify the structure of the ultrasonic assembly 100.

Referring to fig. 6, in other embodiments, the ultrasonic assembly 100 includes an insulating sheet 150, the insulating sheet 150 being disposed between the first electrode layer 120 and the contact 140. The insulating sheet 150 may be made of an insulating adhesive, PI (Polyimide), or PET (Polyethylene terephthalate ), and the insulating sheet 150 may be used to insulate the first electrode layer 120 from the contact 140. In such an embodiment, the provision of the insulating sheet 150 allows the contact 140 to be used to perform other functions, such as stimulating the skin with electrical current, etc.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An ultrasonic assembly, comprising:

a piezoceramic body (110) having opposed first (110 a) and second (110 b) surfaces;

a first electrode layer (120) provided on the first surface (110 a); and

the second electrode layer (130) comprises at least two sub-electrodes (131) which are arranged at intervals, the sub-electrodes (131) are arranged on the second surface (110 b), and all the sub-electrodes (131) are electrically connected.

2. The ultrasonic assembly according to claim 1, wherein the second electrode layer (130) comprises a connection layer (133) electrically connected between two adjacent sub-electrodes (131), the connection layer (133) having a width smaller than the width of the sub-electrodes (131).

3. The ultrasonic assembly according to claim 2, wherein the sub-electrodes (131) are circular and all the sub-electrodes (131) have equal areas.

4. The ultrasonic assembly according to claim 2, wherein the sub-electrodes (131) include 4 or more, wherein one of the sub-electrodes (131) is located in a central region of the second surface (110 b), and the remaining sub-electrodes (131) are uniformly arranged at intervals on the outer periphery of the sub-electrode (131) in the central region; alternatively, all the sub-electrodes (131) are annularly arranged on the second surface (110 b) at uniform intervals.

5. The ultrasonic assembly according to claim 1, characterized in that the sum of the areas of all the sub-electrodes (131) is smaller than the area of the first electrode layer (120).

6. The ultrasonic assembly of claim 5, wherein an area of the first electrode layer (120) is equal to an area of the first surface (110 a).

7. The ultrasonic assembly according to claim 1, wherein one of the sub-electrodes (131) is connected with an extension portion (135), the extension portion (135) extends to an edge of the second surface (110 b), the ultrasonic assembly comprises a first welding area (101) and a second welding area (103), the first welding area (101) is disposed at one end of the extension portion (135) away from the sub-electrode (131) and is electrically connected with the extension portion (135), the second welding area (103) and the first welding area (101) are disposed on the second surface (110 b) at intervals, and the second welding area (103) is electrically connected with the first electrode layer (120).

8. The ultrasonic assembly of claim 1, comprising a contact (140), the contact (140) having a receiving groove (140 a), the piezoceramic body (110) and the first electrode layer (120) being received within the receiving groove (140 a), and the contact (140) covering a side of the first electrode layer (120) remote from the second electrode layer (130).

9. The ultrasonic assembly of claim 8, wherein the contact (140) is a stainless steel member, the ultrasonic assembly comprising an insulating sheet (150), the insulating sheet (150) being disposed between the first electrode layer (120) and the contact (140).

10. An ultrasonic cosmetic apparatus comprising a housing (200) and an ultrasonic assembly according to any one of claims 1-9, said ultrasonic assembly being connected to said housing (200).