Ultrasonic ceramic wafer, ultrasonic transducer and ultrasonic beauty instrument

Abstract

The utility model discloses an ultrasonic ceramic chip, an ultrasonic transducer and an ultrasonic beauty instrument. The ultrasonic ceramic chip is provided with a first surface, a second surface and a peripheral surface, wherein the first surface and the second surface are oppositely arranged; the peripheral surface is connected with the first surface and the second surface; the first surface is provided with a positive electrode area, a negative electrode area and a first insulation area for isolating the positive electrode area from the negative electrode area, the positive electrode area is used for connecting a positive electrode of a power supply, and the negative electrode area is used for connecting a negative electrode of the power supply. When the ultrasonic ceramic chip is applied to the ultrasonic transducer, the first surface can be opposite to the output end of the ultrasonic transducer, namely, the positive electrode area and the negative electrode area face inwards, so that a positive wire and a negative wire can be conveniently and respectively conducted with the positive electrode area and the negative electrode area, and the wires do not need to bypass the peripheral wall of the ultrasonic ceramic chip; therefore, the power-on stability of the ultrasonic ceramic chip can be improved, and the operation stability of the ultrasonic transducer can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic devices, in particular to an ultrasonic ceramic sheet, an ultrasonic transducer and an ultrasonic beauty instrument. Background Art

[0002] With the development of the economy and the improvement of people's living standards, people's pursuit of beauty is also constantly improving. Medical cosmetology has become a very popular project, and more and more people who love beauty choose medical cosmetology to increase their appearance. Ultrasonic beauty instrument is a beauty instrument that focuses ultrasound on the subcutaneous fat layer to generate high heat, destroy subcutaneous fat cells, and play a fat-reducing role. The ultrasonic transducer unit converts electrical energy into sound energy through the transducer. The main functional element of the transducer is the ultrasonic ceramic sheet, which is usually set to have one positive electrode and one negative electrode. For example, the front side facing outward is the positive electrode and the back side facing inward is the negative electrode. This causes the wire to bypass the wall of the ultrasonic ceramic sheet when connected to the front side, causing the wire to be easily squeezed off the edge of the ultrasonic ceramic sheet, affecting the conductive stability of the wire, and also affecting the operating stability of the ultrasonic transducer. Utility Model Content

[0003] The main purpose of the utility model is to provide an ultrasonic ceramic sheet, aiming to solve the technical problem of how to improve the operating stability of an ultrasonic transducer.

[0004] To achieve the above-mentioned purpose, the ultrasonic ceramic sheet proposed in the utility model has a first surface and a second surface arranged opposite to each other, and a peripheral surface connecting the first surface and the second surface; the first surface is provided with a positive electrode area, a negative electrode area and a first insulating area isolating the positive electrode area from the negative electrode area, the positive electrode area is used for connecting to the positive pole of a power source, and the negative electrode area is used for connecting to the negative pole of a power source.

[0005] Optionally, the area ratio of the positive electrode region to the negative electrode region is set to 1 / 2 to 2 / 1.

[0006] Optionally, the width of the first insulating region is set to 0.2 mm to 0.5 mm.

[0007] Optionally, the second surface is provided with a conductive layer, and the conductive layer is conductively connected to the positive electrode region or the negative electrode region.

[0008] Optionally, a second insulating area and a conductive area are provided on the circumferential surface of the ultrasonic ceramic sheet along the circumferential direction, one of the positive electrode area and the negative electrode area is connected to the conductive layer through the conductive area, and the other of the positive electrode area and the negative electrode area is isolated from the conductive layer through the second insulating area; the first insulating area is adjacent to the second insulating area.

[0009] The utility model also provides an ultrasonic transducer, which comprises a shell and the ultrasonic ceramic sheet as described above, wherein the shell is provided with an output hole, the ultrasonic ceramic sheet is installed in the shell, and the second surface of the ultrasonic ceramic sheet faces the output hole.

[0010] Optionally, the shell has an output end wall, and the output hole is opened in the output end wall; the ultrasonic transducer also includes an annular conductive sheet, which is connected to the inner wall surface of the output end wall and is arranged around the output hole, the second surface of the ultrasonic ceramic sheet is connected to the annular conductive sheet, and the conductive layer of the second surface is conductive to the annular conductive sheet.

[0011] Optionally, the annular conductive sheet is sealed and connected to the output end wall by means of a sealant.

[0012] Optionally, a wiring portion is protruded from the outer periphery of the annular conductive sheet in a direction away from the output end wall, and the wiring portion is used for connection of a wire.

[0013] The utility model also provides an ultrasonic beauty instrument, which includes the ultrasonic transducer as described above.

[0014] In the technical solution of the ultrasonic ceramic sheet of the utility model, the positive electrode area and the negative electrode area of ​​the ultrasonic ceramic sheet are both arranged on the first surface, so that when the ultrasonic ceramic sheet is used in the ultrasonic transducer, the first surface can be facing away from the output end of the ultrasonic transducer, that is, the positive electrode area and the negative electrode area are both facing inward, so that the positive electrode wire and the negative electrode wire can be conveniently connected to the positive electrode area and the negative electrode area respectively, so that the wire does not need to bypass the peripheral wall of the ultrasonic ceramic sheet to prevent the wire from being squeezed by the edge of the ultrasonic ceramic sheet and being decoupled or damaged. Therefore, the power-on stability of the ultrasonic ceramic sheet can be improved to improve the operating stability of the ultrasonic transducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 This is a schematic structural diagram of an embodiment of an ultrasonic ceramic sheet of the utility model;

[0017] Figure 2 This is a schematic structural diagram of an embodiment of an ultrasonic transducer of the utility model;

[0018] Figure 3It is a cross-sectional schematic diagram of an embodiment of the ultrasonic transducer of the utility model;

[0019] Figure 4 It is a schematic diagram of an exploded view of an embodiment of the ultrasonic transducer of the utility model.

[0020] Description of Figure Numbers:

[0021] Label name Label name Label name 10 Ultrasonic ceramic sheet 11 First surface 12 Second surface 13 Surface 111 Positive electrode area 112 Negative electrode area 113 First insulation zone 131 Second insulation zone 132 Conductive area 20 shell 21 Output hole 22 Output end wall 30 Ring conductive sheet 31 Connection

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions, taking "A and / or B as an example", including solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] With the development of the economy and the improvement of people's living standards, people's pursuit of beauty is also constantly improving. Medical cosmetology has become a very popular project, and more and more people who love beauty choose medical cosmetology to increase their appearance. Ultrasonic beauty instrument is a beauty instrument that focuses ultrasound on the subcutaneous fat layer to generate high heat, destroy subcutaneous fat cells, and play a fat-reducing role. The ultrasonic transducer unit converts electrical energy into sound energy through the transducer. The main functional element of the transducer is the ultrasonic ceramic sheet, which is usually set to have one positive electrode and one negative electrode. For example, the front side facing outward is the positive electrode and the back side facing inward is the negative electrode. This causes the wire to bypass the wall of the ultrasonic ceramic sheet when connected to the front side, causing the wire to be easily squeezed off the edge of the ultrasonic ceramic sheet, affecting the conductive stability of the wire, and also affecting the operating stability of the ultrasonic transducer.

[0027] The utility model provides an ultrasonic ceramic sheet, aiming to solve the technical problem of how to improve the operating stability of an ultrasonic transducer.

[0028] In the embodiment of the present utility model, Figure 1 As shown, Figure 1 It is a structural schematic diagram of an embodiment of an ultrasonic ceramic sheet 10 of the utility model.

[0029] The ultrasonic ceramic sheet 10 has a first surface 11 and a second surface 12 arranged opposite to each other, and a peripheral surface 13 connecting the first surface 11 and the second surface 12; the first surface 11 is provided with a positive electrode area 111, a negative electrode area 112 and a first insulating area 113 isolating the positive electrode area 111 from the negative electrode area 112, the positive electrode area 111 is used for connecting to the positive pole of a power source, and the negative electrode area 112 is used for connecting to the negative pole of a power source.

[0030] In this embodiment, the ultrasonic ceramic sheet 10 may be a piezoelectric ceramic sheet. The ultrasonic ceramic sheet 10 may convert electrical signals into mechanical vibrations through the piezoelectric effect, thereby driving the medium in contact with the transducer mechanical vibration system to vibrate and radiate sound waves into the medium. The ultrasonic ceramic sheet 10 may be a circular sheet, a square sheet, or a special-shaped sheet, which is not limited here. The first surface 11 and the second surface 12 are arranged opposite to each other along the thickness direction of the ultrasonic ceramic sheet 10. The first surface 11 and the second surface 12 may both be planes, or one may be a convex surface and the other may be a concave surface, which is not limited here. The positive electrode area 111 and the negative electrode area 112 may be formed by providing a conductive coating on the first surface 11, or by providing a conductive plating layer on the first surface 11, which is not limited here. The first insulating area 113 may be formed by the material of the ultrasonic ceramic sheet 10 itself, or by adding an insulating layer, which is not limited here. The first insulating region 113 may be in a ring shape or a strip shape, and there is no limitation here. It only needs to be able to isolate the positive electrode region 111 from the negative electrode region 112 to prevent the positive electrode region 111 and the negative electrode region 112 from being electrically short-circuited.

[0031] The positive electrode area 111 and the negative electrode area 112 of the ultrasonic ceramic sheet 10 are both arranged on the first surface 11, so that when the ultrasonic ceramic sheet 10 is used in an ultrasonic transducer, the first surface 11 can face away from the output end of the ultrasonic transducer, that is, the positive electrode area 111 and the negative electrode area 112 are both facing inward, so that the positive electrode wire and the negative electrode wire can be conveniently connected to the positive electrode area 111 and the negative electrode area 112 respectively, so that the wire does not need to bypass the peripheral wall of the ultrasonic ceramic sheet 10, so as to prevent the wire from being squeezed by the edge of the ultrasonic ceramic sheet 10 and being decoupled or damaged. Therefore, the power-on stability of the ultrasonic ceramic sheet 10 can be improved, so as to improve the operating stability of the ultrasonic transducer.

[0032] The area of ​​the positive electrode region 111 may be larger than the area of ​​the negative electrode region 112 , or may be smaller than the area of ​​the negative electrode region 112 , which is not limited herein.

[0033] Specifically, the area ratio of the positive electrode region 111 to the negative electrode region 112 is set to 1 / 2 to 2 / 1, for example, it can be 1 / 2, 1 / 1.5, 1 / 1, 1.5 / 1 or 2 / 1, etc. Setting the area of ​​the positive electrode region 111 and the negative electrode region 112 to be equal or nearly equal can ensure that the positive electrode conductor and the negative electrode conductor have sufficient connection area in the positive electrode region 111 and the negative electrode region 112, respectively, to ensure the electrical connection stability of the positive electrode region 111 and the negative electrode region 112.

[0034] In practical applications, the width of the first insulating region 113 is set to 0.2 mm to 0.5 mm, for example, it can be 0.2 mm, 0.3 mm, 0.4 mm or 0.5 mm, etc. If the width of the first insulating region 113 is less than 0.2 mm, impurities such as dust can easily cross the first insulating region 113 to connect the positive electrode region 111 and the negative electrode region 112 to cause a short circuit; if the width of the first insulating region 113 is greater than 0.5 mm, it will occupy too much area of ​​the first surface 11, affecting the effective area of ​​the positive electrode region 111 and the negative electrode region 112; therefore, setting the width of the first insulating region 113 to 0.2 mm to 0.5 mm can not only ensure the insulation isolation effect of the first insulating region 113, but also reasonably control the occupied area of ​​the first insulating region 113.

[0035] The second surface 12 may be provided with a conductive region 132 connected to the positive electrode region 111 or the negative electrode region 112 , or may not be provided with the conductive region 132 .

[0036] Exemplarily, the second surface 12 is provided with a conductive layer, and the conductive layer is connected to the positive electrode area 111 or the negative electrode area 112. Taking the conductive layer being connected to the positive electrode area 111 as an example, the conductive layer can increase the overall area of ​​the positive electrode on the ultrasonic ceramic sheet 10, so that the first surface 11 can also be connected to the positive electrode of the power supply, so as to further improve the electrical connection stability of the positive electrode area 111.

[0037] The conductive layer on the second surface 12 may be connected to the positive electrode region 111 on the first surface 11 through a wire, or may be connected to the positive electrode region 111 on the first surface 11 through the peripheral surface 13 of the ultrasonic ceramic sheet 10 , which is not limited here.

[0038] Specifically, Figure 1 As shown, the circumferential surface 13 of the ultrasonic ceramic sheet 10 is provided with a second insulating area 131 and a conductive area 132 along the circumferential direction, one of the positive electrode area 111 and the negative electrode area 112 is connected to the conductive layer through the conductive area 132, and the other of the positive electrode area 111 and the negative electrode area 112 is isolated from the conductive layer through the second insulating area 131; the first insulating area 113 is adjacent to the second insulating area 131.

[0039] Taking the conduction between the conductive layer and the positive electrode region 111 as an example, the positive electrode region 111 on the first surface 11 and the conductive layer on the second surface 12 are conducted through the conductive region 132 on the peripheral surface 13, and the wire can be omitted, thereby reducing the difficulty and cost of production and processing of the ultrasonic transducer. The negative electrode region 112 on the first surface 11 is insulated and isolated from the conductive layer on the second surface 12 by the second insulating region 131 on the peripheral surface 13, which can prevent the conductive layer and the negative electrode region 112 from being short-circuited, thereby improving the operating stability of the ultrasonic transducer.

[0040] For example, Figure 2 and Figure 3 As shown, Figure 2 This is a schematic structural diagram of an embodiment of an ultrasonic transducer of the utility model; Figure 3 It is a cross-sectional schematic diagram of an embodiment of the ultrasonic transducer of the utility model.

[0041] The utility model also proposes an ultrasonic transducer, which includes a housing 20 and an ultrasonic ceramic sheet 10. The specific structure of the ultrasonic ceramic sheet 10 refers to the above embodiment. Since the ultrasonic transducer adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. The housing 20 is provided with an output hole 21, and the ultrasonic ceramic sheet 10 is installed in the housing 20, and the second surface 12 of the ultrasonic ceramic sheet 10 faces the output hole 21.

[0042] For example, Figure 3 and Figure 4 As shown, Figure 4 The schematic diagram of an ultrasonic transducer of the utility model is an exploded view. The housing 20 has an output end wall 22, and the output hole 21 is opened in the output end wall 22; the ultrasonic transducer also includes an annular conductive sheet 30, which is connected to the inner wall surface of the output end wall 22 and is arranged around the output hole 21, and the second surface 12 of the ultrasonic ceramic sheet 10 is connected to the annular conductive sheet 30, and the conductive layer of the second surface 12 is in electrical communication with the annular conductive sheet 30.

[0043] The annular conductive sheet 30 can reduce the difficulty of installing the ultrasonic ceramic sheet 10. When installing the ultrasonic ceramic sheet 10, the ultrasonic ceramic sheet 10 can be first connected to the annular conductive sheet 30, and then the annular conductive sheet 30 can be connected to the output end wall 22, thereby improving the installation efficiency of the ultrasonic ceramic sheet 10. The conductive layer covers the entire second surface 12 and extends to the periphery of the second surface 12. The annular conductive sheet 30 and the periphery of the second surface 12 can be fixed by welding, so that the annular conductive sheet 30 and the ultrasonic ceramic sheet 10 can be fixedly connected, and the conductive layer and the annular conductive sheet 30 can be electrically connected. The annular conductive sheet 30 can be connected to the power supply electrode so that the power supply current can flow through the conductive layer through the annular conductive sheet 30. In this way, the impedance of the ultrasonic ceramic sheet 10 when it is powered on can be reduced, so as to improve the ultrasonic output effect of the ultrasonic ceramic sheet 10.

[0044] The annular conductive sheet 30 and the output end wall 22 may be connected by bonding or by clamping, which is not limited here.

[0045] Specifically, the annular conductive sheet 30 is sealed and connected to the output end wall 22 by a sealant, which can not only simplify the connection process between the annular conductive sheet 30 and the output end wall 22, but also prevent external moisture or dust from entering the ultrasonic transducer, so as to improve the operating stability of the ultrasonic transducer.

[0046] In practical applications, such as Figure 3 and Figure 4 As shown, a wiring portion 31 is protruded along the outer circumference of the annular conductive sheet 30 in a direction away from the output end wall 22 , and the wiring portion 31 is used for wire connection. This can reduce the wiring difficulty of the annular conductive sheet 30 and improve the wiring convenience of the annular conductive sheet 30 .

[0047] The utility model also proposes an ultrasonic beauty instrument, which includes an ultrasonic transducer. The specific structure of the ultrasonic transducer refers to the above-mentioned embodiment. Since the ultrasonic beauty instrument adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0048] In the technical solution of the ultrasonic ceramic sheet 10 of the utility model, the positive electrode area 111 and the negative electrode area 112 of the ultrasonic ceramic sheet 10 are both arranged on the first surface 11, so that when the ultrasonic ceramic sheet 10 is used in the ultrasonic transducer, the first surface 11 can be facing away from the output end of the ultrasonic transducer, that is, the positive electrode area 111 and the negative electrode area 112 are both facing inward, so that the positive electrode wire and the negative electrode wire can be conveniently connected to the positive electrode area 111 and the negative electrode area 112 respectively, so that the wire does not need to bypass the peripheral wall of the ultrasonic ceramic sheet 10, so as to prevent the wire from being squeezed by the edge of the ultrasonic ceramic sheet 10 and being decoupled or damaged. Therefore, the power-on stability of the ultrasonic ceramic sheet 10 can be improved, so as to improve the operating stability of the ultrasonic transducer.

[0049] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An ultrasonic ceramic sheet, characterized in that: The ultrasonic ceramic sheet has a first surface and a second surface arranged opposite to each other, and a peripheral surface connecting the first surface and the second surface; the first surface is provided with a positive electrode area, a negative electrode area and a first insulating area isolating the positive electrode area from the negative electrode area, the positive electrode area is used for connecting to the positive pole of a power source, and the negative electrode area is used for connecting to the negative pole of a power source.

2. The ultrasonic ceramic sheet according to claim 1, characterized in that: The area ratio of the positive electrode region to the negative electrode region is set to 1 / 2 to 2 / 1.

3. The ultrasonic ceramic sheet according to claim 1, characterized in that: The width of the first insulating region is set to 0.2 mm to 0.5 mm.

4. The ultrasonic ceramic sheet according to claim 1, characterized in that: The second surface is provided with a conductive layer, and the conductive layer is conductively connected to the positive electrode region or the negative electrode region.

5. The ultrasonic ceramic sheet according to claim 4, characterized in that: The circumferential surface of the ultrasonic ceramic sheet is provided with a second insulating area and a conductive area along the circumferential direction, one of the positive electrode area and the negative electrode area is connected to the conductive layer through the conductive area, and the other of the positive electrode area and the negative electrode area is isolated from the conductive layer through the second insulating area; the first insulating area is adjacent to the second insulating area.

6. An ultrasonic transducer, characterized in that: It comprises a shell and the ultrasonic ceramic sheet as claimed in any one of claims 1 to 5, wherein the shell is provided with an output hole, the ultrasonic ceramic sheet is installed in the shell, and the second surface of the ultrasonic ceramic sheet faces the output hole.

7. The ultrasonic transducer according to claim 6, characterized in that: The shell has an output end wall, and the output hole is opened in the output end wall; the ultrasonic transducer also includes an annular conductive sheet, which is connected to the inner wall surface of the output end wall and is arranged around the output hole, the second surface of the ultrasonic ceramic sheet is connected to the annular conductive sheet, and the conductive layer of the second surface is conductive to the annular conductive sheet.

8. The ultrasonic transducer according to claim 7, characterized in that: The annular conductive sheet is sealed and connected to the output end wall by means of a sealant.

9. The ultrasonic transducer according to claim 7, characterized in that: A wiring portion is protruded along the outer circumference of the annular conductive sheet in a direction away from the output end wall, and the wiring portion is used for connection of a wire.

10. An ultrasonic beauty instrument, characterized in that: Comprising the ultrasonic transducer according to any one of claims 6 to 9.

Images