Composite atomization device

Abstract

The utility model discloses a composite atomizing device, including: transducer and atomizing disc, transducer includes first end cap, second end cap, a plurality of ceramic piece, a plurality of pole piece and connecting piece, first end cap and second end cap are connected through connecting piece, a plurality of ceramic piece and a plurality of pole piece are staggered between first end cap and second end cap, and the atomizing disc is connected with the first end cap and the second end cap. The atomizing disc is connected with the first end cover; a plurality of composite grooves are formed in the surface of the first end cover at intervals. A plurality of composite grooves are formed in a first end cover, so that the first end cover can be axially deformed and also can be radially deformed during working, meanwhile, an atomizing disc is driven to perform linear and rotary combined composite motion, and product liquid is dispersed by the rotary motion of the atomizing disc to form a liquid film; and then the surface tension of the liquid film is broken through the linear motion of the atomizing disc, tiny product liquid particles are formed, and powder is formed after cooling, so that the current requirements for powder which is good in shape, high in yield, small in particle size and concentrated are met.

Description

Technical Field

[0001] The utility model relates to the technical field of atomization, in particular to a composite atomization device. Background Art

[0002] Ultrasonic atomization and centrifugal atomization are the more common methods for powder preparation at present. Each has its own advantages and disadvantages. For example, ultrasonic atomization has the advantages of concentrated particle size distribution and good particle morphology; but it has the problem of low yield, especially it is difficult to increase the proportion of fine powder; centrifugal atomization has a simple structure and high yield, but it has the problem of poor powder morphology, and high-speed motors have reached a development bottleneck. With the development of processes such as powder metallurgy and electronic manufacturing, the demand for powders with good morphology, high yield, small and concentrated particle size has become increasingly strong, which is exactly the problem that needs to be solved urgently. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a composite atomization device.

[0004] The utility model discloses a composite atomization device, comprising: a transducer and an atomization disk, wherein the transducer comprises a first end cover, a second end cover, a plurality of ceramic parts, a plurality of pole pieces and a connecting piece, wherein the first end cover is connected to the second end cover through the connecting piece, the plurality of ceramic parts and the plurality of pole pieces are staggered between the first end cover and the second end cover, and the atomization disk is connected to the first end cover; wherein a plurality of composite grooves are spaced apart on the surface of the first end cover.

[0005] According to one embodiment of the present invention, the composite groove is a straight groove or an oblique groove.

[0006] According to an embodiment of the present invention, the first end cover has a plurality of ratio-changing regions, and the plurality of ratio-changing regions extend in a direction away from the ceramic component and are connected in sequence.

[0007] According to an embodiment of the present invention, the ratio zone includes connected small-diameter segments and large-diameter segments. When a plurality of ratio zones are connected, the small-diameter segments and the large-diameter segments are alternately arranged.

[0008] According to an embodiment of the present invention, the first end cover is further provided with a plurality of cooling holes, and the plurality of cooling holes are distributed at intervals on the outer surface of the first end cover.

[0009] According to an embodiment of the present invention, the atomizing disk has a concave surface facing toward the first end cover.

[0010] According to one embodiment of the utility model, a centrifugal assembly is also included, which includes a centrifugal drive, a first centrifugal transmission component and a second centrifugal transmission component. The second centrifugal transmission component is sleeved on the first end cover. The first centrifugal transmission component connects the centrifugal drive and the second centrifugal transmission component, wherein the transducer is driven to rotate by the centrifugal drive.

[0011] According to one embodiment of the present invention, the second centrifugal transmission member includes an upper transmission block, a lower transmission block and two first sealing rings, the upper transmission block is connected to the lower transmission block and both are sleeved on the first end cover, the first centrifugal transmission member is connected to the upper transmission block or the lower transmission block, the two first sealing rings are sleeved on the first end cover, and they are respectively arranged on the upper transmission block and the lower transmission block.

[0012] According to one embodiment of the utility model, it also includes at least two bearings, and the two bearings are distributed on the first end cover at intervals.

[0013] According to an embodiment of the present invention, at least two second sealing rings are further included, and the two second sealing rings are respectively arranged on the sides of the two bearings that are away from each other.

[0014] The beneficial effect of the utility model lies in that, by opening a plurality of composite grooves on the first end cover, the first end cover can be deformed both axially and radially during operation, and at the same time, the atomizing disk will be driven to perform a composite motion combining linear and rotational motion. The product liquid is dispersed and a liquid film is formed by the rotational motion of the atomizing disk, and then the surface tension of the liquid film is broken by the linear motion of the atomizing disk to form tiny product liquid particles, which are then formed into powder after cooling, so as to meet the current demand for powder with good morphology, high yield, small particle size and concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the composite atomization device;

[0017] Figure 2 is a cross-sectional view of a composite atomization device;

[0018] Figure 3 is a schematic diagram of the three-dimensional structure of the transducer;

[0019] Figure 4 is a front view of the transducer;

[0020] Figure 5 This is a microscopic picture of the powder produced by the composite atomization device;

[0021] Figure 6 Microscopic images of powders produced by existing atomization devices;

[0022] Figure 7 Another schematic diagram of the three-dimensional structure of the transducer.

[0023] Description of Reference Numerals

[0024] 10-transducer; 1-first end cover; 11-ratio area; 111-small-diameter section; 112-large-diameter section; 12-composite groove; 13-cooling hole; 2-second end cover; 3-ceramic part; 4-pole piece; 5-connector; 6-insulating part;

[0025] 20-atomizing disk; 201-concave surface;

[0026] 30-centrifugal assembly; 301-centrifugal driving member; 302-first centrifugal transmission member; 303-second centrifugal transmission member; 3031-upper transmission block; 3032-lower transmission block; 3033-first sealing ring; 304-avoidance groove;

[0027] 40-bearing;

[0028] 50- second sealing ring;

[0029] 60-Mounting block. DETAILED DESCRIPTION

[0030] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0031] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, 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 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 present utility model.

[0032] Embodiment 1

[0033] like Figure 1-Figure 4 As shown, Figure 1 It is a schematic diagram of the three-dimensional structure of the composite atomization device; Figure 2 is a cross-sectional view of a composite atomization device; Figure 3 is a schematic diagram of the three-dimensional structure of the transducer 10; Figure 4It is a front view of the transducer 10. The composite atomization device includes the transducer 10 and the atomization disk 20. The atomization disk 20 is located at one end of the transducer 10. The transducer 10 outputs to the atomization disk 20, and the atomization disk 20 acts on the product liquid and breaks it up. After the product liquid is cooled, small-size product particles are formed, and after a certain amount of accumulation, they become the final desired powder.

[0034] The transducer 10 includes a first end cover 1, a second end cover 2, a plurality of ceramic parts 3, a plurality of pole pieces 4 and a connecting member 5. The plurality of ceramic parts 3 and the plurality of pole pieces 4 are arranged alternately in sequence, that is, a pole piece 4 is arranged between two ceramic parts 3, and similarly, a ceramic part 3 is arranged between two pole pieces 4; the pole piece 4 is externally connected to a power supply; the first end cover 1 and the second end cover 2 are respectively located at the two ends after the plurality of ceramic parts 3 and the plurality of pole pieces 4 are assembled, and the first end cover 1 is connected to the second end cover 2 by the connecting member 5, the plurality of ceramic parts 3 and the plurality of pole pieces 4 are sleeved on the connecting member 5, and the atomizing disk 20 refers to an end of the first end cover 1 away from the second end cover 2. In this embodiment, the transducer 10 also includes an insulating member 6 (not marked in the figure), which is sleeved on the first end cover 1, and the ceramic member 3 and the pole piece 4 are both sleeved on the outer surface of the insulating member 6. That is to say, the insulating member 6 will be located between the ceramic member 3 and the first end cover 1, and the insulating member 6 is also located between the pole piece 4 and the first end cover 1. It can also be understood that one end of the insulating member 6 abuts against the first end cover 1, and the other end of the insulating member 6 abuts against the second end cover 2.

[0035] In this embodiment, the first end cover 1 is used as the front end cover, the second end cover 2 is used as the rear end cover, and the ceramic member 3 is used as the piezoelectric ceramic sheet. In addition, the length of the first end cover 1 based on the double wavelength design is longer than that of the half wavelength design.

[0036] Furthermore, the first end cover 1 is provided with a plurality of connected ratio areas 11, and the plurality of ratio areas 11 are sequentially connected and extended in a direction away from the second end cover 2. By setting the plurality of ratio areas 11, the stress on the first end cover 1 will not be concentrated in one place, so that the stress distribution is achieved, and the problem of the first end cover 1 breaking is improved. In addition, it is also beneficial to increase the output amplitude. In specific applications, the ratio area 11 includes a small-diameter section 111 and a large-diameter section 112. When a plurality of ratio areas 11 are connected, the diameters of the adjacent small-diameter sections 111 or large-diameter sections 112 are changed. For example, the small-diameter section 111 is adjacent to the large-diameter section 112, and the large-diameter section 112 is connected to the small-diameter section 111 in the next ratio area 11, that is, the small-diameter section 111 and the large-diameter section 112 are staggered.

[0037] Furthermore, the first end cover 1 is also provided with a plurality of composite grooves 12, and the plurality of composite grooves 12 are arranged at intervals on the outer surface of the first end cover 1. By the opening of the composite grooves 12, the output of the composite motion of the first end cover 1 is realized, that is, the first end cover 1 can output both axial power and rotational power. The composite grooves 12 in this embodiment are used as the notches in the first embodiment. Specifically, the composite grooves 12 can be distributed at the positive and / or reverse positions of the maximum amplitude output point. The composite grooves 12 can be through grooves connected to the interior of the first end cover 1, or grooves that are not connected to the interior of the first end cover 1, or two types of grooves are used simultaneously. In addition, the opening shape of the composite grooves 12 can be various, for example, the composite grooves 12 are inclined grooves opened along the arc surface of the first end cover 1, or straight grooves opened straight along the arc surface of the first end cover 1, or inclined grooves and straight grooves are used simultaneously. It should also be noted that the composite grooves 12 can be set in multiple places on the same first end cover 1. Since the rotation frequency brought by the composite groove 12 to the first end cover 1 is higher than that of the existing motor, the product liquid film processed by the atomizing disk 20 is thinner, the amplitude required for crushing is reduced, and the particle size of the powder is smaller.

[0038] Furthermore, the first end cover 1 is also provided with a plurality of cooling holes 13, wherein the plurality of cooling holes 13 are spaced apart and distributed on the outer surface of the first end cover 1. In specific applications, the cooling holes 13 are provided at the point where the amplitude output is maximum, so that the "acoustic supercooling" phenomenon is formed there, thereby quickly taking out the heat generated there. Specifically, the cooling holes 13 are through-hole structures, and their cross-sectional shapes can be circular, rectangular, elliptical, etc.

[0039] Please review Figure 2 As shown, the end of the atomizing disk 20 away from the transducer 10 has a concave surface 201, wherein the concave surface 201 is recessed in the direction close to the first end cover 1 and forms an arc surface. Through the setting of the concave surface 201, the powder is further crushed. At the same time, it cooperates with the axial movement and rotational movement of the transducer 10, which can not only crush the product liquid into particles with smaller particle size, but also stabilize the output to achieve mass production level.

[0040] Furthermore, the composite atomization device also includes a centrifugal assembly 30, which is used to drive the transducer 10 to rotate, thereby causing the atomizing disk 20 to generate centrifugal force to throw out the crushed product liquid. In specific applications, the centrifugal assembly 30 includes a centrifugal drive member 301, a first centrifugal transmission member 302, and a second centrifugal transmission member 303, wherein the second centrifugal transmission member 303 is disposed on the first end cover 1, and the first centrifugal transmission member 302 is connected to the centrifugal drive member 301 and the second centrifugal transmission member 303. Specifically, the centrifugal drive member 301 is a motor, and the first centrifugal transmission member 302 is an existing transmission wheel and transmission belt structure, that is, when the centrifugal drive member 301 is working, the transmission wheel and transmission belt of the first centrifugal transmission member 302 will drive the second centrifugal transmission member 303 to rotate, and finally realize the rotation of the transducer 10 and the atomizing disk 20 and generate centrifugal force. In this embodiment, the second centrifugal transmission member 303 includes an upper transmission block 3031, a lower transmission block 3032 and at least two first sealing rings 3033. The upper transmission block 3031 and the lower transmission block 3032 are both sleeved on the first end cover 1, and any one of the upper transmission block 3031 and the lower transmission block 3032 is connected to the first centrifugal transmission member 302. The two first sealing rings 3033 are respectively arranged on the upper transmission block 3031 and the lower transmission block 3032. It can be understood that a first sealing ring 3033 is arranged at the contact point between the upper transmission block 3031 and the first end cover 1. Similarly, a first sealing ring 3033 is arranged at the contact point between the lower transmission block 3032 and the first end cover 1 to improve its sealing performance and avoid high-frequency friction between the first end cover 1 and the second centrifugal transmission member 303. In addition, it can also improve the energy conversion rate, reduce the heat generated at the contact point, improve the noise generated by the friction between the two, and reduce the power loss during operation. Furthermore, both the upper transmission block 3031 and the lower transmission block 3032 are provided with a avoiding groove 304 , and the first sealing ring 3033 is located in the avoiding groove 304 .

[0041] Please review Figure 2 The composite atomization device also includes at least two bearings 40, and at least two bearings 40 are spaced apart and sleeved on the first end cover 1. It should be noted that in order to reduce the impact of the first end cover 1 on the bearing 40 when it is working and to avoid the damage to the connection accuracy between the first end cover 1 and the bearing 40, it is necessary to set the bearing 40 at the minimum amplitude on the first end cover 1. Further, the composite atomization device also includes at least two second sealing rings 50, and the two second sealing rings 50 are respectively arranged on the two bearings 40. It can be understood that the two second sealing rings 50 are respectively located on the side of the two bearings 40 away from each other. Through the setting of the second sealing ring 50, the phenomenon that the powder generated during the processing falls into the bearing 40 and causes the bearing 40 to be stuck and unable to work can be avoided. It is further explained that the number of bearings 40 corresponds to the number of second sealing rings 50, and at the same time, the number of bearings 40 can be increased or decreased according to demand.

[0042] Preferably, the composite atomization device further comprises a mounting block 60, which is sleeved on the outer surfaces of the bearing 40 and the second sealing ring 50. The mounting block 60 is arranged to facilitate assembly with other devices during use.

[0043] Refer to Figure 5 and Figure 6 As shown, Figure 5 This is a microscopic picture of the powder produced by the composite atomization device;

[0044] Figure 6 Table 1 is the statistical data of the powder produced by the composite atomization device of this embodiment; Table 2 is the analytical data of the powder produced by the composite atomization device of this embodiment; Table 3 is the statistical data of the powder produced by the existing atomization device; Table 4 is the analytical data of the powder produced by the existing atomization device.

[0045] Table 1:

[0046] Particle diameter grouping (μm) 18 19 20 25 28 30 32 38 40 45 50 Particle diameter grouping (μm) ＜10 10～15 15～20 20～25 25～28 28～30 30～32 32～38 38～40 40～45 ＞50 Cumulative number 4 1 0 7 109 268 256 327 3 1 0 <![CDATA[Cumulative area (μm 2 )]]> 33.0 300.0 300.0 3412.2 66232.1 243712.0 435873.4 730117.1 733635.5 734936.6 734936.6 Number Percentage (%) 0.4 0.1 0.0 0.7 11.2 27.5 26.2 33.5 0.3 0.1 0.0 Area percentage (%) 0.0 0.0 0.0 0.4 8.5 24.1 26.1 40.0 0.5 0.2 0.0 Cumulative number percentage (%) 0.4 0.5 0.5 1.2 12.4 39.9 66.1 99.6 99.9 100.0 100.0 Cumulative area percentage (%) 0.0 0.0 0.0 0.5 9.0 33.2 59.3 99.3 99.8 100.0 100.0

[0047] Table 2:

[0048]

[0049] Table 3:

[0050] Particle diameter grouping (μm) 18 19 20 25 28 30 32 38 40 45 50 Particle diameter grouping (μm) ＜10 10～15 15～20 20～25 25～28 28～30 30～32 32～38 38～40 40～45 ＞50 Cumulative number 1 0 0 0 0 1 0 209 111 171 18 <![CDATA[Accumulated area (μm 2 )]]> 1.1 1.1 1.1 1.1 1.1 665.7 665.7 213382.6 346257.8 584187.5 614061.3 Number Percentage (%) 0.2 0.0 0.0 0.0 0.0 0.2 0.0 40.9 21.7 33.5 3.5 Area percentage (%) 0.0 0.0 0.0 0.0 0.0 0.1 0.0 34.6 21.6 38.7 4.9 Cumulative number percentage (%) 0.2 0.2 0.2 0.2 0.2 0.4 0.4 41.3 63.0 96.5 100.0 Cumulative area percentage (%) 0.0 0.0 0.0 0.0 0.0 0.1 0.1 34.7 56.4 95.1 100.0

[0051] Table 4:

[0052]

[0053] Through the above experimental tests, it can be known that under the same conditions, the average particle size of the powder produced by the composite atomization device of this embodiment is 30.8μm, while the average particle size of the powder produced by the existing atomization device is 38.9μm. In comparison, the particle size of the powder produced by the composite atomization device of this embodiment can be reduced by nearly 30%. In actual use, the smaller the powder particle size, the higher its quality.

[0054] To summarize, by opening a plurality of composite grooves on the first end cover, the first end cover can be deformed both axially and radially during operation, and at the same time, the atomizing disk 20 will be driven to perform a composite motion combining linear and rotational motion. The rotational motion of the atomizing disk 20 disperses the product liquid and forms a liquid film, and then the linear motion of the atomizing disk 20 breaks the surface tension of the liquid film to form tiny product liquid particles, which are then formed into powder after cooling to meet the current demand for powders with good morphology, high yield, small particle size and concentration.

[0055] Embodiment 2

[0056] like Figure 7 As shown, Figure 7is another three-dimensional structural diagram of the transducer 10. The difference between this embodiment and the first embodiment is that the transducer 10 in this embodiment has a bidirectional output function, that is, the second end cover 2 and the connecting member 5 are cancelled, and the ceramic member 3, the pole piece 4 and the first end cover 1 structure of the same structure are extended in this direction, so that the output points of the transducer 10 are increased, which is conducive to improving production efficiency.

[0057] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A composite atomization device, characterized in that: include: A transducer (10) and an atomizing disk (20), wherein the transducer (10) comprises a first end cover (1), a second end cover (2), a plurality of ceramic parts (3), a plurality of pole pieces (4) and a connecting piece (5), wherein the first end cover (1) and the second end cover (2) are connected via the connecting piece (5), the plurality of ceramic parts (3) and the plurality of pole pieces (4) are alternately arranged between the first end cover (1) and the second end cover (2), and the atomizing disk (20) is connected to the first end cover (1); wherein a plurality of composite grooves (12) are spaced apart on the surface of the first end cover (1).

2. The composite atomization device according to claim 1, characterized in that: The composite groove (12) is a straight groove or an oblique groove.

3. The composite atomization device according to claim 1, characterized in that: The first end cover (1) has a plurality of variable ratio areas (11), and the plurality of variable ratio areas (11) extend in a direction away from the ceramic component (3) and are connected in sequence.

4. The composite atomization device according to claim 3, characterized in that: The ratio section (11) comprises connected small-diameter sections (111) and large-diameter sections (112); when a plurality of ratio sections (11) are connected, the small-diameter sections (111) and the large-diameter sections (112) are arranged alternately.

5. The composite atomization device according to claim 1, characterized in that: The first end cover (1) is also provided with a plurality of cooling holes (13), and the plurality of cooling holes (13) are distributed at intervals on the outer surface of the first end cover (1).

6. The composite atomization device according to any one of claims 1 to 5, characterized in that: The atomizing disk (20) has a concave surface (201) facing towards the first end cover (1).

7. The composite atomization device according to any one of claims 1 to 5, characterized in that: It also includes a centrifugal assembly (30), which includes a centrifugal drive member (301), a first centrifugal transmission member (302) and a second centrifugal transmission member (303), wherein the second centrifugal transmission member (303) is sleeved on the first end cover (1), and the first centrifugal transmission member (302) is connected to the centrifugal drive member (301) and the second centrifugal transmission member (303), wherein the centrifugal drive member (301) drives the transducer (10) to rotate.

8. The composite atomization device according to claim 7, characterized in that: The second centrifugal transmission member (303) comprises an upper transmission block (3031), a lower transmission block (3032) and two first sealing rings (3033); the upper transmission block (3031) is connected to the lower transmission block (3032) and both are sleeved on the first end cover (1); the first centrifugal transmission member (302) is connected to the upper transmission block (3031) or the lower transmission block (3032); the two first sealing rings (3033) are sleeved on the first end cover (1) and are respectively arranged on the upper transmission block (3031) and the lower transmission block (3032).

9. The composite atomization device according to any one of claims 1 to 5, characterized in that: It also comprises at least two bearings (40), wherein the two bearings (40) are spaced apart and distributed on the first end cover (1).

10. The composite atomization device according to claim 9, characterized in that: It also comprises at least two second sealing rings (50), wherein the two second sealing rings (50) are respectively arranged on the sides of the two bearings (40) that are away from each other.

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