Ultrasonic vibrator

Abstract

An ultrasonic vibrator comprises a transducer, an amplitude-change pole, a flange, a refrigeration piece and a cooling and fixing integrated piece. And a piezoelectric ring is fixed on the transducer. And one end of the amplitude-change pole is connected with the transducer. The flange is fixed to the node area of the amplitude-change pole. At least one end face of the flange is provided with a refrigerating part which is provided with a cold end and a hot end opposite to the cold end, and the cold end makes contact with the end face of the flange. The cooling and fixing integrated piece is connected with the amplitude-change pole in a sleeved mode, and the cooling and fixing integrated piece makes contact with the hot end of the refrigerating piece. The cooling and fixing integrated piece is used for cooling the refrigerating piece and fixing the refrigerating piece to the flange. The refrigeration piece is matched with the cooling and fixing integrated piece, so that the piezoelectric ring of the transducer can be cooled, and rapid cooling can be achieved. The flange is arranged at the node area of the amplitude-change pole, so that the flange, the refrigerating piece and the cooling and fixing integrated piece are arranged at the node area of the amplitude-change pole, adverse effects on the frequency of the ultrasonic vibrator and energy transfer of the ultrasonic vibrator are avoided, and the energy utilization rate of the ultrasonic vibrator is effectively guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of ultrasonic vibrators, and particularly relates to an ultrasonic vibrator. Background Art

[0002] Since the invention of ultrasonic vibrators, they have been widely used in industrial fields such as ultrasonic welding, ultrasonic emulsification, and ultrasonic cleaning, bringing huge economic benefits while reducing labor costs and increasing productivity. They are an indispensable part of modern industrial design.

[0003] An ultrasonic vibrator is essentially a structure that converts electrical energy into mechanical energy and ultimately into heat energy. Ensuring efficient transmission of electrical energy to the workpiece is an important indicator for evaluating the efficiency of ultrasonic vibrators. At the same time, the stability of ultrasonic vibrators is even more important. There are various common ultrasonic failure modes. For example: 1. Physical damage to the piezoelectric ring of the transducer. 2. The piezoelectric ring fails due to the piezoelectric effect, resulting in the frequency of the ultrasonic vibrator being outside the normal frequency range, and the ultrasonic vibrator fails to lock the operating frequency. Among them, part of the physical damage to the piezoelectric ring of the transducer is also attributed to the increase in the temperature of the piezoelectric ring. The piezoelectric effect failure of the piezoelectric ring may be due to the piezoelectric ring being electrically broken down or depolarization caused by an increase in temperature. Therefore, the increase in temperature is a very troublesome problem. Utility Model Content

[0004] The present application provides an ultrasonic vibrator, and its main purpose is to reduce the temperature of the piezoelectric ring in the ultrasonic vibrator.

[0005] In one embodiment of the present application, an ultrasonic vibrator is provided, including:

[0006] A transducer, on which a piezoelectric ring is fixed;

[0007] A horn, one end of the horn is connected to the transducer, and the other end of the horn is used to connect to an ultrasonic tool head;

[0008] A flange, which is fixed to the nodal region of the horn;

[0009] A refrigerating member, the refrigerating member is disposed on at least one end face of the flange, the refrigerating member has opposite cold and hot ends, and the cold end is in contact with the end face of the flange; and

[0010] A cooling and fixing integrated component, the cooling and fixing integrated component is sleeved with the horn, and the cooling and fixing integrated component is in contact with the hot end of the refrigerating component, so that the heat of the hot end can be conducted to the cooling and fixing integrated component; a liquid storage cavity is arranged in the cooling and fixing integrated component, and a liquid inlet and a liquid outlet which are both communicated with the liquid storage cavity are arranged on the cooling and fixing integrated component. The cooling and fixing integrated component is used for conveying a heat-conducting liquid into the liquid storage cavity through the liquid inlet and taking away the heat-conducting liquid that absorbs heat through the liquid outlet, so as to cool the refrigerating component; the cooling and fixing integrated component is also used for fixing the refrigerating component on the flange.

[0011] In one embodiment, the refrigerating component is an annular refrigerating sheet.

[0012] In one embodiment, the refrigerating component is a block-shaped refrigerating sheet, and the ultrasonic vibrator includes a plurality of the refrigerating components; when a plurality of the refrigerating components are arranged on the same end face of the flange, the plurality of the refrigerating components on the same end face of the flange are distributed and fixed in different areas of the flange end face, and / or the plurality of the refrigerating components on the same end face of the flange are stacked and fixed in the same area of the flange end face.

[0013] In one embodiment, a first limiting groove is formed in one end of the cooling and fixing integrated component facing the flange, and the shape of the first limiting groove is adapted to the shape of the refrigerating component. The refrigerating component can be embedded into the first limiting groove, and the first limiting groove is in contact with the hot end of the refrigerating component.

[0014] In one embodiment, a second limiting groove is formed in the end face of the flange, and the shape of the second limiting groove is adapted to the shape of the refrigerating component. The refrigerating component can be embedded into the second limiting groove, and the second limiting groove is in contact with the cold end of the refrigerating component.

[0015] In one embodiment, when the radial dimension of the cooling and fixing integrated component is larger than the radial dimension of the flange, and a refrigerating component is arranged on any end face of the flange, the ultrasonic vibrator further includes an auxiliary mounting cover; an assembly groove adapted to the outer contour shape of the flange is formed in one end of the cooling and fixing integrated component and / or the auxiliary mounting cover facing the flange; the cooling and fixing integrated component and the auxiliary mounting cover are detachably connected to be fixed on the flange.

[0016] In one embodiment, when the radial dimension of the cooling and fixing integrated part is greater than the radial dimension of the flange, and cooling elements are provided on both end faces of the flange, the cooling and fixing integrated parts are symmetrically distributed on both end faces of the flange; an assembly groove adapted to the outer contour shape of the flange is formed at one end of the cooling and fixing integrated part facing the flange, and the cooling and fixing integrated parts on both ends of the flange are detachably connected to be fixed on the flange.

[0017] In one embodiment, an avoidance part is formed on the cooling and fixing integrated part, and an assembly plate is arranged at the avoidance part and fixedly connected to the flange.

[0018] In one embodiment, the cooling and fixing integrated part is an annular hollow shell.

[0019] In one embodiment, a heat conduction layer is further included, and the heat conduction layer is arranged between the flange and the cooling element, and / or between the cooling element and the cooling and fixing integrated part.

[0020] In one embodiment, a temperature control power supply is further included, the cooling element is electrically connected to the temperature control power supply, and the temperature control power supply is used to control the temperature by adjusting the current to change the heat flow of the cooling element.

[0021] In one embodiment, a flow guide plate is arranged in the liquid storage cavity between the liquid inlet and the liquid outlet, and the flow guide plate is used to make the heat conduction liquid in the liquid storage cavity flow directionally from the side of the liquid inlet to the side of the liquid outlet.

[0022] In one embodiment, an ultrasonic tool head is further included, one end of the horn is connected to the transducer, and the other end of the horn is connected to the ultrasonic tool head; the ultrasonic tool head is an ultrasonic welding head, an ultrasonic emulsifying head, an ultrasonic cleaning head, an ultrasonic scalpel or an ultrasonic atomizing head.

[0023] In one embodiment, the radial diameter of the flange is 2 cm - 10 cm larger than the radial diameter of the horn; and / or the thickness of the flange is 1 mm - 10 mm.

[0024] In one embodiment, along the axial direction of the horn, a first channel is formed in the horn; a second channel communicating with the outside is formed in the flange, and the first channel is communicated with the second channel.

[0025] According to the ultrasonic vibrator in the above embodiment, a low temperature can be generated at the flange through the refrigeration component, increasing the temperature difference at the flange. The greater the temperature difference at the flange, the more conducive it is to extract part of the heat of the transducer, reduce the temperature at the piezoelectric ring, effectively protect the mechanical structure of the ultrasonic vibrator, and extend the service life of the ultrasonic vibrator. When using the ultrasonic vibrator, the heat at the flange of the horn is quickly extracted from the cold end to the hot end by the refrigeration component, and the hot end is in contact with the cooling and fixing integrated component. Under the action of the cooling and fixing integrated component, the heat at the hot end of the refrigeration component can be taken away in time, ensuring the cooling effect of the refrigeration component and the effectiveness of the continuous operation of the refrigeration component. In addition to playing an auxiliary cooling role, the designed cooling and fixing integrated component can also serve as a fixing component to fix the refrigeration component on the flange, making the structural design of the ultrasonic vibrator more compact and simple. The refrigeration component and the cooling and fixing integrated component in the ultrasonic vibrator cooperate to not only cool the piezoelectric ring of the transducer, but also quickly cool it down. Moreover, the flange in the ultrasonic vibrator of the present application is arranged at the node area of the amplitude transformer, and the node area of the amplitude transformer does not vibrate. Therefore, arranging the flange and the refrigeration component and the cooling fixing integrated component there will neither have an adverse effect on the frequency of the ultrasonic vibrator nor on the energy transfer of the ultrasonic vibrator, thereby effectively ensuring the energy utilization rate of the ultrasonic vibrator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the planar structure of an ultrasonic vibrator in one embodiment of the present application;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of an ultrasonic vibrator in one embodiment of the present application (I);

[0028] Figure 3 This is a schematic diagram of the explosion structure of an ultrasonic vibrator in one embodiment of the present application (I);

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of an ultrasonic vibrator in one embodiment of the present application (II);

[0030] Figure 5 This is a schematic diagram of the explosion structure of an ultrasonic vibrator in one embodiment of the present application (II);

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of an ultrasonic vibrator in one embodiment of the present application (III);

[0032] Figure 7 This is a schematic diagram of the explosion structure of an ultrasonic vibrator in one embodiment of the present application (III);

[0033] Figure 8 This is a schematic diagram of the three-dimensional structure of an ultrasonic vibrator in one embodiment of the present application (IV);

[0034] Figure 9Schematic diagram (IV) of the explosion structure of an ultrasonic oscillator in an embodiment of the present application;

[0035] Figure 10 Schematic diagram (V) of the three-dimensional structure of an ultrasonic oscillator in an embodiment of the present application;

[0036] Figure 11 Schematic diagram (V) of the explosion structure of an ultrasonic oscillator in an embodiment of the present application;

[0037] Figure 12 Schematic diagram of the internal structure of a cooling and fixing integrated part in an embodiment of the present application;

[0038] Figure 13 Schematic diagram of the three-dimensional structure of a cooling and fixing integrated part in an embodiment of the present application;

[0039] Figure 14 Schematic diagram of the cross-sectional structure of a local ultrasonic oscillator in an embodiment of the present application;

[0040] Figure 15 Schematic diagram of the three-dimensional structure of a horn in an embodiment of the present application.

[0041] Explanation of reference numerals: 10. Transducer, 11. Piezoelectric ring, 20. Horn, 21. First channel, 22. First mounting part, 23. Second mounting part, 30. Flange, 31. Second channel, 32. Second limiting groove, 40. Refrigerating element, 41. Cold end, 42. Hot end, 50. Cooling and fixing integrated part, 51. Liquid storage cavity, 52. Liquid inlet, 53. Liquid outlet, 54. Deflector plate, 55. Avoidance part, 56. Assembly plate, 561. Cylinder, 57. First limiting groove, 58. Through hole, 59. Assembly groove, 60. Ultrasonic tool head, 70. Heat conducting layer, 80. Temperature control power supply, 90. Auxiliary mounting cover. Detailed implementation manners

[0042] The present application will be further described in detail below in conjunction with the accompanying drawings through specific implementation manners. Similar elements in different implementation manners are labeled with related similar reference numerals. In the following implementation manners, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of these features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0043] In addition, the features, operations or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in a manner that would be obvious to those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a certain embodiment and do not mean a necessary sequence, unless it is stated otherwise that a certain sequence must be followed.

[0044] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any sequential or technical meaning. And the "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connection (coupling).

[0045] Please refer to Figures 1 - 15 , in an embodiment of the present application, an ultrasonic oscillator is provided, including: a transducer 10, a horn 20, a flange 30, a refrigerating member 40, and a cooling and fixing integrated member 50. A piezoelectric ring 11 is fixed on the transducer 10. One end of the horn 20 is connected to the transducer 10, and the other end of the horn 20 is used to connect to an ultrasonic tool head 60. The flange 30 is fixed to the nodal region of the horn 20. At least one end face of the flange 30 is provided with the refrigerating member 40, and the refrigerating member 40 has opposite cold end 41 and hot end 42, and the cold end 41 is in contact with the end face of the flange 30. The cooling and fixing integrated member 50 is sleeved on the horn 20, and moreover, the cooling and fixing integrated member 50 is in contact with the hot end 42 of the refrigerating member 40, so that the heat of the hot end 42 can be conducted to the cooling and fixing integrated member 50. A liquid storage cavity 51 is provided in the cooling and fixing integrated member 50, and a liquid inlet 52 and a liquid outlet 53 that are both communicated with the liquid storage cavity 51 are provided on the cooling and fixing integrated member 50. The cooling and fixing integrated member 50 is used to convey a heat-conducting liquid into the liquid storage cavity 51 through the liquid inlet 52 and take away the heat-conducting liquid that has absorbed heat through the liquid outlet 53, so as to cool the refrigerating member 40. The cooling and fixing integrated member 50 is also used to fix the refrigerating member 40 on the flange 30.

[0046] By using the ultrasonic vibrator in the above embodiment, a low temperature can be generated at the flange 30 through the refrigeration element 40, and the temperature difference at the flange 30 is increased. The greater the temperature difference at the flange 30, the more conducive it is to extract part of the heat of the transducer 10, reduce the temperature at the piezoelectric ring 11, effectively protect the mechanical structure of the ultrasonic vibrator, and extend the service life of the ultrasonic vibrator. When using the ultrasonic vibrator, the heat at the flange 30 of the horn 20 is quickly extracted from the cold end 41 to the hot end 42 by the refrigeration element 40, and the hot end 42 is in contact with the cooling fixed integrated part 50. Under the action of the cooling fixed integrated part 50, the heat of the hot end 42 of the refrigeration element 40 can be taken away in time, ensuring the cooling effect of the refrigeration element 40 and the effectiveness of the continuous operation of the refrigeration element 40. The cooling method of the cooling fixed integrated part 50 is quieter than the airflow cooling method (such as a fan). In addition to playing an auxiliary cooling role, the designed cooling fixed integrated part 50 can also act as a fixing part to fix the refrigeration element 40 on the flange 30, making the structural design of the ultrasonic vibrator more compact and simple. The refrigeration element 40 and the cooling fixed integrated element 50 in the ultrasonic vibrator cooperate to cool the piezoelectric ring 11 of the transducer 10 and to cool it quickly. In addition, the flange 30 in the ultrasonic vibrator of the present application is arranged at the node area of the horn 20, and the node area of the horn 20 does not vibrate. Therefore, the flange 30, the refrigeration element 40 and the cooling fixed integrated element 50 are arranged there, which will not have an adverse effect on the frequency of the ultrasonic vibrator, nor will it have an adverse effect on the energy transfer of the ultrasonic vibrator, and effectively ensure the energy utilization rate of the ultrasonic vibrator.

[0047] Specifically, the refrigeration component 40 is a temperature difference refrigeration plate. The heat-conducting liquid in the cooling and fixing integrated component 50 is a fluid-like liquid with high thermal conductivity, for example, the heat-conducting liquid is water or a refrigerant. The flange 30 and the amplitude transformer 20 can be an integral structure or a detachable structure. The flange 30 divides the amplitude transformer 20 into two parts along the axial direction. The shapes of the amplitude transformers 20 on both sides of the flange 30 can be the same or different. For example, the amplitude transformer 20 on one side of the flange 30 is cylindrical, and the amplitude transformer 20 on the other side of the flange 30 is a cylinder with a continuously gradient diameter. The specific shape of the amplitude transformer 20 is not limited in the present application.

[0048] See also Figure 1 - Figure 5, in some embodiments, the refrigerating element 40 is a block-shaped refrigerating sheet. The ultrasonic vibrator includes a plurality of refrigerating elements 40, and the plurality of refrigerating elements 40 are fixed on at least one end face of the flange 30. When the refrigerating element 40 is a block-shaped refrigerating sheet, it has a more flexible usage method. According to the actual cooling requirements, select an appropriate number of refrigerating elements 40 for corresponding distribution. For example, a plurality of refrigerating elements 40 are all fixed on the same end face of the flange 30. Or, for example, a plurality of refrigerating elements 40 are fixed on both end faces of the flange 30. Or, for another example, a plurality of refrigerating elements 40 are fixed on one end face of the flange 30, and only one refrigerating element 40 is fixed on the other end face of the flange 30. The distribution form of the plurality of refrigerating elements 40 is selected according to the actual cooling requirements and is not specifically limited in this application. When a plurality of refrigerating elements 40 are arranged on the same end face of the flange 30, the plurality of refrigerating elements 40 on the same end face of the flange 30 are distributed and fixed in different areas of the end face of the flange 30, and / or, the plurality of refrigerating elements 40 on the same end face of the flange 30 are stacked and fixed in the same area of the end face of the flange 30. When the plurality of refrigerating elements 40 on the same end face of the flange 30 are distributed and fixed in different areas of the end face of the flange 30, the plurality of refrigerating elements 40 can be circumferentially arrayed on the end face of the flange 30 to facilitate more uniform cooling and ensure the cooling consistency of each position of the piezoelectric ring 11 on the transducer 10. When there are higher requirements for the piezoelectric ring 11 in the transducer 10, it can be achieved by stacking the refrigerating elements 40 to facilitate generating a larger temperature difference on the flange 30. Preferably, the number of stacked refrigerating elements 40 is 2 to 3. Among them, the block-shaped refrigerating sheet is, for example, Figure 3 the sector-ring-shaped block-shaped refrigerating sheet shown, so as to make more full use of the end face area of the flange. Of course, in other embodiments, the block-shaped refrigerating sheet can also be of other shapes, such as square, circular and other shapes that are convenient for processing. Taking the square block-shaped refrigerating sheet as an example, when the refrigerating element 40 is square and protrudes radially relative to the flange 30 by a part, at this time, in order to increase the fitting or overlapping area between the refrigerating element 40 and the flange 30, a shape adapted to the refrigerating element 40 can also be protruded radially at the flange 30 to ensure that the entire refrigerating element 40 fits with the flange 30.

[0049] Please refer to Figures 6 - 11 , in some embodiments, the refrigerating element 40 is a ring-shaped refrigerating sheet. There is a larger contact area between the ring-shaped refrigerating sheet and the end face of the flange 30, and there is a larger heat conduction path, which can achieve rapid cooling. Moreover, the overall number of ring-shaped refrigerating sheets can be relatively less than that of block-shaped refrigerating sheets, which is convenient for assembly and saves time.

[0050] In some other embodiments, the refrigerating member 40 includes both a block-shaped refrigerating sheet and an annular refrigerating sheet. For example, on one end face of the flange 30, a plurality of block-shaped refrigerating members 40 are arranged in a circumferential array, and on the other end face of the flange 30, an annular refrigerating sheet is arranged. At this time, cooling and fixing integrated members 50 need to be respectively arranged on the two end faces of the flange 30 to cool the hot end 42 of the refrigerating member 40. When an annular refrigerating sheet is arranged on the end face of the flange 30, the number of annular refrigerating sheets can be more than one. For example, two annular refrigerating sheets with different sizes are arranged on the end face of the flange 30, and the outer ring diameter of the smaller annular refrigerating sheet is not greater than the inner ring diameter of the larger annular refrigerating sheet.

[0051] Preferably, in some embodiments, a first limiting groove 57 is formed at one end of the cooling and fixing integrated member 50 facing the flange 30. The shape of the first limiting groove 57 fits the shape of the refrigerating member 40. The refrigerating member 40 can be embedded in the first limiting groove 57, and the first limiting groove 57 is in contact with the hot end 42 of the refrigerating member 40. The shape of the first limiting groove 57 fits the shape of the refrigerating member 40. For example, when the refrigerating member 40 is an annular refrigerating sheet, correspondingly, the first limiting groove 57 is also an annular groove. For another example, when the refrigerating member 40 is a sector-shaped block refrigerating sheet, correspondingly, the first limiting groove 57 is also a sector-shaped ring groove. When not considering the stacking of the refrigerating members 40, the number of the first limiting grooves 57 is set in one-to-one correspondence with the number of the refrigerating members 40. For example, when 3 refrigerating members 40 are placed on one end face of the flange 30, 3 first limiting grooves are also formed at corresponding positions on the cooling and fixing member 50.

[0052] Preferably, in some embodiments, a second limiting groove 32 is formed on the end face of the flange 30. The shape of the second limiting groove 32 fits the shape of the refrigerating member 40. The refrigerating member 40 can be embedded in the second limiting groove 32, and the second limiting groove 32 is in contact with the cold end 41 of the refrigerating member 40. The setting principle of the second limiting groove 32 on the flange 30 is the same as that of the first limiting groove on the cooling and fixing integrated member 50, so it will not be elaborated here.

[0053] Through the first limiting groove 57 or the second limiting groove 32, it is convenient to realize the positioning and installation of the refrigerating member 40, and it is convenient to ensure the position consistency of the refrigerating members 40 in the same batch of ultrasonic vibrators produced. In other embodiments, if the thickness of the refrigerating member 40 between the flange 30 and the cooling and fixing integrated member 50 is large enough, for example, when a plurality of refrigerating members 40 are stacked, the thickness of the second limiting groove 32 or the first limiting groove 57 can be increased to match the assembly, or the first limiting groove 57 is formed on the cooling and fixing integrated member 50 and the second limiting groove 32 is formed on the flange 30 at the same time to match the assembly of the thicker refrigerating member 40.

[0054] Please refer to Figure 6 - Figure 7, in some embodiments, when the radial dimension of the cooling and fixing integrator 50 is greater than the radial dimension of the flange 30, and a refrigerating element 40 is provided on any end face of the flange 30, the ultrasonic vibrator further includes an auxiliary mounting cover 90. An assembly groove 59 adapted to the outer contour shape of the flange 30 is formed at one end of the cooling and fixing integrator 50 and / or the auxiliary mounting cover 90 facing the flange 30. The cooling and fixing integrator 50 and the auxiliary mounting cover 90 are detachably connected to be fixed on the flange 30, and the refrigerating element 40 is clamped and fixed on the end face of the flange 30. For example, as Figure 7 shown, a refrigerating element 40 is provided on the lower end face of the flange 30. The corresponding cooling and fixing integrator 50 is located on the lower end face of the flange 30, and the auxiliary mounting cover 90 is located on the upper end face of the flange 30. An assembly groove 59 adapted to the outer contour shape of the flange 30 is formed at one end of the cooling and fixing integrator 50 facing the flange 30 or the refrigerating element 40. Threaded holes may be respectively formed in the cooling and fixing integrator 50 and the auxiliary mounting cover 90, and the cooling and fixing integrator 50 and the auxiliary mounting cover 90 are detachably connected by screws. Alternatively, in other embodiments, the cooling and fixing integrator 50 and the auxiliary mounting cover 90 may also be detachably connected by snap fasteners. The present application does not limit the specific connection manner between the cooling and fixing integrator 50 and the auxiliary mounting cover 90.

[0055] Please refer to Figures 8 - 9 , in some embodiments, when the radial dimension of the cooling and fixing integrator 50 is greater than the radial dimension of the flange 30, and refrigerating elements 40 are provided on both end faces of the flange 30, the cooling and fixing integrators 50 are symmetrically distributed on both end faces of the flange 30. An assembly groove 59 adapted to the outer contour shape of the flange 30 is formed at one end of the cooling and fixing integrator 50 facing the flange 30. The cooling and fixing integrators 50 on both ends of the flange 30 are detachably connected to be fixed on the flange 30, and the refrigerating elements 40 are clamped and fixed on the end faces of the flange 30.

[0056] When the radial dimension of the cooling and fixing integral part 50 is greater than that of the flange 30, the cooling and fixing integral part 50 has a larger volume and can also hold more heat-conducting liquid, thus having a better cooling effect. Through the assembly groove 59, the position of the cooling and fixing integral part 50 relative to the flange 30 can be better defined, ensuring the position structural stability of the cooling and fixing integral part 50 and avoiding the shaking of the cooling and fixing integral part 50 during the use of the ultrasonic vibrator. During actual use of the ultrasonic vibrator, if the cooling requirement is relatively low, the refrigerating member 40 can be selected to be arranged on any one of the two end faces of the flange 30, and the cooling and fixing integral part 50 and the auxiliary mounting cover 90 are used to realize the fixing function of the refrigerating member 40. If the cooling requirement is relatively high, the refrigerating members 40 can be selected to be arranged on both end faces of the flange 30. Correspondingly, the cooling and fixing integral parts 50 are correspondingly arranged on both end faces of the flange 30, and the symmetrically distributed cooling and fixing integral parts 50 on both end faces of the flange 30 are fixed together to realize the fixing function of the refrigerating member 40.

[0057] Please refer to Figures 4 - 11 , in some embodiments, an avoidance part 55 is provided on the cooling and fixing integral part 50, and an assembly plate 56 is provided at the avoidance part 55, and the assembly plate 56 is fixedly connected to the flange 30. Specifically, the avoidance part 55 is in a groove shape or a notch shape (the notch-shaped avoidance part 55 is, for example, as Figure 5 shown). Threaded holes are provided on both the assembly plate 56 and the flange 30, and the cooling and fixing integral part 50 and the flange 30 are fixedly connected by screws, and the refrigerating member 40 is clamped and fixed on the flange 30. More preferably, a gasket can also be added between the flange 30 and the cooling and fixing integral part 50, that is, a gasket is sleeved at the screw to limit the relative distance between the cooling and fixing integral part 50 and the flange 30 and avoid damaging the refrigerating member 40 during the installation of the cooling and fixing integral part 50. In other embodiments, the assembly plate 56 can also be fixed to other components to fix the cooling and fixing integral part 50 on the flange 30. For example, as Figure 7 shown, the radial dimension of the cooling and fixing integral part 50 is greater than that of the flange 30, and the assembly plate 56 on the cooling and fixing integral part 50 is on the outer side of the flange 30 in the radial direction. At this time, corresponding threaded holes can be provided on both the assembly plate 56 and the auxiliary mounting cover 90, and the cooling and fixing integral part 50 and the auxiliary mounting cover 90 are fixedly connected by screws. Another example is as Figure 9As shown, the radial dimension of the cooling and fixing integrated part 50 is larger than that of the flange 30. The mounting plate 56 on the cooling and fixing integrated part 50 is outside the flange 30 in the radial direction. At this time, threaded holes can be opened on the mounting plates 56 of the two symmetrically distributed cooling and fixing integrated parts 50, and the two cooling and fixing integrated parts 50 can be fixed on the flange 30 through screws. More preferably, to ensure the connection effect between the two cooling and fixing integrated parts 50, a cylinder 561 can also be provided on the mounting plate 56, and a longer threaded hole is opened in the cylinder. Regarding the fixing method of the cooling and fixing integrated part 50, in addition to screw fixing, it can also be snap-connected, welded, etc., and the present application does not make specific restrictions.

[0058] Please refer to Figures 1 - 13 , the cooling and fixing integrated part 50 is an annular hollow shell. Generally, the flange 30 is mostly (circular) annular. When the cooling and fixing integrated part 50 is an annular hollow shell, it is consistent with the outer shape of the flange 30, which is convenient for the connection between the cooling and fixing integrated part 50 and the flange, and also convenient for the overall compact design of the ultrasonic vibrator.

[0059] Specifically, in some embodiments, through holes 58 are opened on the cooling and fixing integrated part 50. The cooling and fixing integrated part 50 is sleeved on the horn 20 through the through holes 58. The aperture of the through holes 58 is larger than the diameter of the horn 20, avoiding contact between the cooling and fixing integrated part 50 and the horn 20, and thus avoiding the influence of the cooling and fixing integrated part 50 on the vibration of the ultrasonic vibrator.

[0060] More preferably, please refer to Figure 1 , in some embodiments, the ultrasonic vibrator further includes a heat-conducting layer 70. A heat-conducting layer 70 is provided between the flange 30 and the refrigerating member 40, and / or between the refrigerating member 40 and the cooling and fixing integrated part 50. The heat-conducting layer 70, such as heat-conducting silicone grease. Designing the heat-conducting layer 70 plays a role in heat transfer and can accelerate the cooling speed. Specifically, in the embodiments of the present application, heat-conducting layers 70 are provided between the flange 30 and the refrigerating member 40, and between the refrigerating member 40 and the cooling and fixing integrated part 50. When multiple refrigerating members 40 are stacked, a heat-conducting layer 70 can also be provided between adjacent refrigerating members 40. The heat-conducting layer 70 between adjacent refrigerating members 40 has one side corresponding to the cold end 41 of one refrigerating member 40 and the other side corresponding to the hot end 42 of another refrigerating member 40.

[0061] Please refer to Figure 1, in some embodiments, the ultrasonic oscillator further includes a temperature control power supply 80. The refrigeration component 40 is electrically connected to the temperature control power supply 80, and the temperature control power supply 80 is used to control the temperature by adjusting the current to change the heat flow of the refrigeration component 40. Specifically, both the liquid inlet 52 and the liquid outlet 53 of the cooling and fixing integrated component 50 are tubular structures provided on the housing of the cooling and fixing integrated component 50, or both are hole-shaped structures provided on the housing of the cooling and fixing integrated component 50. The ultrasonic oscillator further includes a water pump (not shown), and both the liquid inlet 52 and the liquid outlet 53 are connected to the water pump. For example, both the liquid inlet 52 and the liquid outlet 53 are connected to the water pump through a pipe body. At this time, the heat conduction speed of the refrigeration component 40 can depend on the flow rate of the heat-conducting liquid in the cooling and fixing integrated component 50 or the magnitude of the current on the refrigeration component 40. Correspondingly, the flow rate of the heat-conducting liquid in the cooling and fixing integrated component 50 can be controlled by the water pump as needed and / or the magnitude of the current on the refrigeration component 40 can be adjusted by the temperature control power supply 80. The ultrasonic oscillator is provided with the temperature control power supply 80, so that the adjustment of the cooling effect of the refrigeration component 40 is more flexible, and the ultrasonic oscillator has a better cooling effect.

[0062] Preferably, please refer to Figure 12 , in some embodiments, a flow guide plate 54 is provided in the annular hollow shell between the liquid inlet 52 and the liquid outlet 53. The flow guide plate 54 is used to make the heat-conducting liquid in the liquid storage cavity 51 flow directionally from the side of the liquid inlet 52 to the side of the liquid outlet 53. Specifically, one end of the flow guide plate 54 is connected to the inner ring (outer wall) of the annular hollow shell, and the other end of the flow guide plate 54 is connected to the outer ring (inner wall) of the annular hollow shell. Under the action of the flow guide plate 54, the heat-conducting liquid in the liquid storage cavity 51 of the cooling and fixing integrated component 50 flows directionally from the liquid inlet 52 to the liquid outlet 53, so that the heat-conducting liquid in the cooling and fixing integrated component 50 fully exchanges heat with the hot end 42 of the refrigeration component 40, thereby ensuring the cooling effect.

[0063] Please refer to Figures 1 - 11 , in some embodiments, the ultrasonic oscillator further includes an ultrasonic tool head 60. One end of the horn 20 is connected to the transducer 10, and the other end of the horn 20 is connected to the ultrasonic tool head 60. The ultrasonic oscillator designed in the present application can be used at different power ranges, for example, at powers between several watts and several kilowatts. The ultrasonic oscillator designed in the present application can be applied to fields such as ultrasonic welding, ultrasonic emulsification, ultrasonic cleaning, etc. Correspondingly, the ultrasonic tool head 60 can be an ultrasonic welding head, an ultrasonic emulsification head, an ultrasonic cleaning head, an ultrasonic scalpel or an ultrasonic atomizing head.

[0064] Specifically, please refer to Figure 15, one end of the horn 20 is provided with a first mounting portion 22, the first mounting portion 22 and the transducer 10 are detachably connected, the other end of the horn 20 is provided with a second mounting portion 23, and the second mounting portion 23 and the ultrasonic tool head 60 are detachably connected. For example, the first mounting portion 22 is a threaded hole opened at the end of the horn 20, and the transducer 10 is detachably connected to the horn 20 through the threaded hole. The second mounting portion 23 is a threaded rod, and the ultrasonic tool head 60 is detachably connected to the horn 20 through the threaded rod. In the embodiment of the present application, the ultrasonic tool head 60 takes the ultrasonic welding head as an example to illustrate the advantages of the designed ultrasonic vibrator. The ultrasonic welding head is a consumable part. Excessive temperature will cause physical wear or accelerate physical wear. The physical wear of the ultrasonic welding head is also one of the common ultrasonic failure modes. Through the cooling effect of the cooling part 40 and the cooling and fixing integrated part 50, not only can the piezoelectric ring 11 in the transducer 10 at one end of the horn 20 be cooled, but also the ultrasonic welding head at the other end of the horn 20 can be cooled, effectively protecting the mechanical structure of the ultrasonic vibrator and extending the service life of the ultrasonic vibrator.

[0065] In some embodiments, the radial diameter of the flange 30 is 2 cm - 10 cm larger than the radial diameter of the horn 20. And / or, the thickness of the flange 30 is 1 mm - 10 mm. When the radial diameter of the flange 30 is 2 cm - 10 cm larger than the radial diameter of the horn 20, at this time, the flange 30 has enough mounting area to place the cooling part 40, thereby ensuring that the ultrasonic vibrator has enough cooling area for better cooling effect. When the thickness of the flange 30 is 1 mm - 10 mm, it can better balance the requirements of design and heat conduction.

[0066] Preferably, in some embodiments, along the axial direction of the horn 20, a first channel 21 is opened in the horn 20. A second channel 31 communicating with the outside is opened in the flange 30, and the first channel 21 and the second channel 31 are connected. The ultrasonic vibrator can be used in the medical field, such as using the ultrasonic vibrator to treat cataracts. By opening the first channel 21 and the second channel 31, the ultrasonic vibrator has the function of adding liquid medicine, and can better play the treatment effect of the ultrasonic vibrator. At the same time, due to the cooling effect of the cooperation between the cooling part 40 and the cooling and fixing integrated part 50, when the ultrasonic vibrator is used for treating the eyes, it can ensure the appropriate temperature of the liquid medicine dropped into the eyes, increasing the use safety of the ultrasonic vibrator.

[0067] In the embodiment of the present application, the cooling and fixing integrated part 50 is made of high-strength thermosetting plastic, which can avoid electric shock when the cooling and fixing integrated part 50 contacts the flange 30. At the same time, the heat conduction degree when the cooling and fixing integrated part 50 contacts the flange 30 is reduced, ensuring the cooling effect. Or, in other embodiments, the cooling and fixing integrated part 50 can also be made of metal, but a separator made of plastic material needs to be provided between the cooling and fixing integrated part 50 and the flange 30 to avoid direct contact between the cooling and fixing integrated part 50 made of metal material and the flange 30, and also reduce the heat conduction degree when the cooling and fixing integrated part 50 contacts the flange 30.

[0068] By using the ultrasonic vibrator in the above-described embodiment designed in the present application, the heat generated by the piezoelectric ring 11 in the transducer 10 due to electrical loss and mechanical internal loss can be taken away in time through the refrigerating member 40 and the cooling and fixing integrated part 50, which can effectively reduce the heating degree of the transducer 10 during use. The heat generated in the ultrasonic tool head 60 can also be taken away in time through the refrigerating member 40 and the cooling and fixing integrated part 50, effectively reducing the heating degree of the ultrasonic tool head 60 during use. The structure of the ultrasonic vibrator is effectively protected, and the service life of the ultrasonic vibrator is prolonged. The designed ultrasonic vibrator can play a better temperature control role, and thus has a relatively smaller impact on the frequency, effectively ensuring the frequency stability during the use of the ultrasonic vibrator and facilitating the control of the ultrasonic vibrator.

[0069] The above-described ultrasonic vibrator designed in the present application is specifically illustrated by the following embodiments:

[0070] Embodiment 1

[0071] Please refer to Figures 4 - 5 , an ultrasonic vibrator, comprising: a transducer 10, a horn 20, a flange 30, a refrigerating member 40, a cooling and fixing integrated part 50, an ultrasonic tool head 60, a heat conducting layer 70, and a temperature control power supply 80.

[0072] A piezoelectric ring 11 is fixed on the transducer 10.

[0073] One end of the horn 20 is connected to the transducer 10, and the other end of the horn 20 is connected to the ultrasonic tool head 60. The ultrasonic tool head 60 is an ultrasonic welding head, an ultrasonic emulsifying head, an ultrasonic cleaning head, an ultrasonic scalpel, or an ultrasonic emulsifying head.

[0074] The flange 30 is fixed in the nodal region of the horn 20. The radial diameter of the flange 30 is 2 cm - 10 cm larger than the radial diameter of the horn 20. The thickness of the flange 30 is 2 mm - 4 mm.

[0075] On one end face of the flange 30, a plurality of uniformly distributed second limiting grooves 32 are provided. One second limiting groove 32 corresponds to one refrigerating member 40. The refrigerating member 40 is a block-shaped refrigerating sheet, and the refrigerating member 40 has opposite cold ends 41 and hot ends 42.

[0076] The temperature reduction and fixing integrated member 50 is sleeved on the horn 20. The temperature reduction and fixing integrated member 50 is an annular hollow shell containing a liquid storage cavity 51. An inlet 52 and an outlet 53 that are both connected to the liquid storage cavity 51 are provided on the annular hollow shell. The temperature reduction and fixing integrated member 50 is used to convey a heat-conducting liquid into the liquid storage cavity 51 through the inlet 52 and take away the heat-conducting liquid that absorbs heat through the outlet 53, so as to play a role in cooling the refrigerating member 40. A flow guide plate 54 is arranged in the annular hollow shell between the inlet 52 and the outlet 53. One end of the flow guide plate 54 is connected to the inner ring of the annular hollow shell, and the other end of the flow guide plate 54 is connected to the outer ring of the annular hollow shell.

[0077] A heat-conducting layer 70 is fixed between the flange 30 and the cold end 41 and between the hot end 42 and the temperature reduction and fixing integrated member 50. Through the heat-conducting layer 70, the flange 30 and the cold end 41 are in indirect contact, and the hot end 42 and the temperature reduction and fixing integrated member 50 are in indirect contact.

[0078] The refrigerating member 40 is electrically connected to the temperature control power supply 80.

[0079] An avoidance portion 55 is provided on the temperature reduction and fixing integrated member 50. An assembly plate 56 is provided at the avoidance portion 55. The assembly plate 56 is fixedly connected to the flange 30 to clamp and fix the refrigerating member 40 on the flange 30.

[0080] Embodiment 2

[0081] The difference between the ultrasonic vibrator in this embodiment and the ultrasonic vibrator in Embodiment 1 is that: the ultrasonic tool head 60 is an ultrasonic atomizing head. A first channel 21 is opened in the axial direction of the horn 20. The first channel 21 can extend to the end of the ultrasonic tool head 60 far from the horn 20. A second channel 31 is opened in the radial direction of the flange 30. The second channel 31 is connected to the first channel 21 to facilitate liquid infusion when using the ultrasonic vibrator. For example, when using the ultrasonic vibrator for eye treatment, the medicine can be input into the eye through the first channel 21 and the second channel 31. The rest of the structure is the same as that in Embodiment 1, so it will not be described in detail here.

[0082] Embodiment 3

[0083] Please refer to Figures 6 - 7 , the difference between the ultrasonic vibrator in this embodiment and the ultrasonic vibrator in Embodiment 1 is that:

[0084] The refrigerating member 40 is an annular refrigerating sheet.

[0085] On the end face of the flange 30, no second limiting groove 32 is provided. Instead, a ring-shaped first limiting groove 57 is provided at one end of the cooling and fixing integrated part 50 facing the flange 30.

[0086] The radial dimension of the cooling and fixing integrated part 50 is larger than that of the flange 30. The ultrasonic oscillator further includes an auxiliary mounting cover 90. An assembly groove 59 adapted to the outer contour shape of the flange 30 is provided at one end of the cooling and fixing integrated part 50 facing the flange 30. An avoidance part 55 is provided on the cooling and fixing integrated part 50. An assembly plate 56 is provided at the avoidance part 55. A column body 561 with a threaded hole is provided at the assembly plate 56. The cooling and fixing integrated part 50 and the auxiliary mounting cover 90 are detachably connected to be fixed on the flange 30, and the refrigerating part 40 is clamped and fixed on the flange 30.

[0087] The remaining structures are the same as those in Embodiment 1, so they will not be elaborated here.

[0088] Embodiment 4

[0089] Please refer to Figures 8 - 9 , the difference between the ultrasonic oscillator in this embodiment and the ultrasonic oscillator in Embodiment 1 lies in:

[0090] Refrigerating parts 40 are arranged on both end faces of the flange 30, and the refrigerating parts 40 are ring-shaped refrigerating sheets.

[0091] No second limiting groove 32 is provided on the end face of the flange 30. Correspondingly, a first limiting groove 57 is provided at one end of the cooling and fixing integrated part 50 facing the flange 30. The first limiting groove 57 is indirectly in contact with the hot end 42 of the refrigerating part 40 through a heat conduction layer 70.

[0092] The radial dimension of the cooling and fixing integrated part 50 is larger than that of the flange 30, and when refrigerating parts 40 are arranged on both end faces of the flange 30, the cooling and fixing integrated parts 50 are symmetrically distributed on both end faces of the flange 30. An assembly groove 59 adapted to the outer contour shape of the flange 30 is provided at one end of the cooling and fixing integrated part 50 facing the flange 30.

[0093] An avoidance part 55 is provided on the cooling and fixing integrated part 50. An assembly plate 56 is provided at the avoidance part 55. A column body 561 with a threaded hole is provided at the assembly plate 56. The two cooling and fixing integrated parts 50 are detachably connected through the column body with a threaded hole to be fixed on the flange 30, and the refrigerating parts 40 are clamped and fixed on the flange 30.

[0094] The remaining structures are the same as those in Embodiment 1, so they will not be elaborated here.

[0095] The above uses specific examples to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the art to which the present application pertains, based on the idea of the present application, several simple deductions, deformations or substitutions can also be made.

Claims

1. An ultrasonic oscillator, characterized in that, Comprising: A transducer, on which a piezoelectric ring is fixed; A horn, one end of the horn is connected to the transducer, and the other end of the horn is used to connect to an ultrasonic tool head; A flange, which is fixed in the nodal region of the horn; A refrigerating element, the refrigerating element is arranged on at least one end face of the flange, the refrigerating element has opposite cold end and hot end, and the cold end is in contact with the end face of the flange; And A cooling and fixing integrated part, the cooling and fixing integrated part is sleeved on the horn, and the cooling and fixing integrated part is in contact with the hot end of the refrigerating element, so that the heat of the hot end can be conducted to the cooling and fixing integrated part; A liquid storage cavity is arranged in the cooling and fixing integrated part, and a liquid inlet and a liquid outlet which are both communicated with the liquid storage cavity are arranged on the cooling and fixing integrated part. The cooling and fixing integrated part is used to convey a heat-conducting liquid into the liquid storage cavity through the liquid inlet and take away the heat-conducting liquid absorbing heat through the liquid outlet, so as to cool the refrigerating element; The cooling and fixing integrated part is also used to fix the refrigerating element on the flange.

2. The ultrasonic oscillator according to claim 1, characterized in that The refrigerating element is an annular refrigerating sheet.

3. The ultrasonic vibrator according to claim 1, wherein, The refrigerating element is a block-shaped refrigerating sheet, and the ultrasonic oscillator includes a plurality of the refrigerating elements: when a plurality of the refrigerating elements are arranged on the same end face of the flange, the plurality of the refrigerating elements on the same end face of the flange are distributed and fixed in different areas of the flange end face, and / or, the plurality of the refrigerating elements on the same end face of the flange are stacked and fixed in the same area of the flange end face.

4. The ultrasonic oscillator according to any one of claims 1-3, characterized in that, A first limiting groove is opened on one end of the cooling and fixing integrated part facing the flange, and the shape of the first limiting groove is matched with the shape of the refrigerating element. The refrigerating element can be embedded into the first limiting groove, and the first limiting groove is in contact with the hot end of the refrigerating element.

5. The ultrasonic vibrator according to any one of claims 1 to 3, characterized in that, A second limiting groove is opened on the end face of the flange, and the shape of the second limiting groove is matched with the shape of the refrigerating element. The refrigerating element can be embedded into the second limiting groove, and the second limiting groove is in contact with the cold end of the refrigerating element.

6. The ultrasonic vibrator according to any one of claims 1-3, characterized in that When the radial dimension of the cooling and fixing integrated part is larger than the radial dimension of the flange, and a refrigerating element is arranged on any end face of the flange, the ultrasonic oscillator further includes an auxiliary mounting cover; An assembly groove adapted to the outer contour shape of the flange is opened on one end of the cooling and fixing integrated part and / or the auxiliary mounting cover facing the flange; The cooling and fixing integrated part and the auxiliary mounting cover are detachably connected to be fixed on the flange.

7. The ultrasonic oscillator according to any one of claims 1 to 3, characterized in that, When the radial dimension of the cooling and fixing integrated part is larger than the radial dimension of the flange, and refrigerating elements are arranged on both end faces of the flange, the cooling and fixing integrated parts are symmetrically distributed on both end faces of the flange; An assembly groove adapted to the outer contour shape of the flange is opened on one end of the cooling and fixing integrated part facing the flange, and the cooling and fixing integrated parts on both ends of the flange are detachably connected to be fixed on the flange.

8. The ultrasonic vibrator according to any one of claims 1 to 3, characterized in that, An avoidance part is opened on the cooling and fixing integrated part, and an assembly plate is arranged at the avoidance part. The assembly plate is fixedly connected to the flange.

9. The ultrasonic oscillator according to claim 1, characterized in that, The cooling and fixing integrated part is an annular hollow shell.

10. The ultrasonic oscillator according to claim 1, wherein, It further includes a heat conduction layer, which is arranged between the flange and the refrigerating part, and / or between the refrigerating part and the cooling and fixing integrated part.

11. The ultrasonic oscillator according to claim 1, characterized in that, It further includes a temperature control power supply, which is electrically connected to the refrigerating part. The temperature control power supply is used to control the temperature by adjusting the current to change the heat flow of the refrigerating part.

12. The ultrasonic vibrator according to claim 1, wherein, A flow guide plate is arranged in the liquid storage cavity between the liquid inlet and the liquid outlet. The flow guide plate is used to make the heat-conducting liquid in the liquid storage cavity flow directionally from the side of the liquid inlet to the side of the liquid outlet.

13. The ultrasonic vibrator according to claim 1, characterized in that, It further includes an ultrasonic tool head. One end of the amplitude transformer is connected to the transducer, and the other end of the amplitude transformer is connected to the ultrasonic tool head. The ultrasonic tool head is an ultrasonic welding head, an ultrasonic emulsifying head, an ultrasonic cleaning head, an ultrasonic scalpel or an ultrasonic atomizing head.

14. The ultrasonic vibrator according to claim 1, characterized in that, The radial diameter of the flange is 2 cm - 10 cm larger than the radial diameter of the amplitude transformer; and / or the thickness of the flange is 1 mm - 10 mm.

15. The ultrasonic oscillator according to claim 1, characterized in that, Along the axial direction of the amplitude transformer, a first channel is formed in the amplitude transformer. A second channel communicating with the outside is formed in the flange, and the first channel is communicated with the second channel.

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