Intelligent water tank ultrasonic cleaning machine based on ellipsoidal transducer

Abstract

The intelligent water tank ultrasonic cleaning machine comprises an ultrasonic cleaning machine body, a control module and an intelligent transducer assembly, the ultrasonic cleaning machine body comprises a water tank, and the control module is used for setting cleaning data to adjust operation of the intelligent transducer assembly; the intelligent transducer assembly comprises a plurality of ellipsoidal transducers, the ellipsoidal transducers are arranged at different positions of the water tank based on the shape and size of the water tank and the coverage range of the ellipsoidal transducers, and the control module adjusts operation of any ellipsoidal transducer. According to the intelligent water tank ultrasonic cleaning machine based on the ellipsoidal transducers, the number and the positions of the ellipsoidal transducers are reasonably arranged, the control module is matched to regulate and control the ellipsoidal transducers according to cleaning data, and the high-power characteristic and the full-coverage characteristic of a water tank sound field are guaranteed; and operation of the ellipsoidal transducer can be adjusted according to the actual cleaning condition, refined control and precise cleaning are achieved, and the cleaning effect is better.

Description

Technical Field

[0001] This application relates to the technical field of ultrasonic cleaning, and specifically to an intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer. Background Art

[0002] Currently, the main installation design methods for the vibrators or vibration plates of sink-type ultrasonic cleaning machines are as follows: welding screws at the bottom or side of the stainless-steel sink plate to connect ordinary vibrators; embedding discrete ordinary vibrators or large-area circular vibration plates at the bottom; putting square vibration boxes into the bottom; embedding large-area vibration plates on the side.

[0003] The method of welding and connecting vibrators at the bottom or side of the sink has a simple structure and is widely used. The disadvantages of this design are as follows: the sound field coverage range of a single vibrator is small, and multiple vibrators are required to achieve a wide coverage of the sound field radiation range; the power of ordinary vibrators is small, and multiple combinations are also required to achieve high-power characteristics.

[0004] The method of putting a square vibration box into the bottom will damage the flat space at the bottom of the sink, easily accumulate dirt, and is not conducive to sink cleaning. If used for tableware and food cleaning, it will breed bacteria.

[0005] The method of embedding discrete ordinary vibrators at the bottom can avoid problems such as low electro-acoustic conversion efficiency and high noise compared with the method of directly welding vibrators at the bottom. However, due to the small radiation range and low power of a single vibrator, multiple combinations are still required, which increases the installation cost. At the same time, it damages the bottom structure of the sink, has an adverse impact on bottom drainage, and also causes residue residues at the joints.

[0006] The method of embedding a large-area circular vibration plate at the bottom, compared with the method of embedding discrete ordinary vibrators at the bottom, has significant advantages such as improved electro-acoustic efficiency, reduced noise, and high power without the need for multiple disk combinations. However, since its sound radiation is still planar radiation, there are still blind spots in the sink that are difficult to completely cover even with multiple disk combinations, or the power in some areas is relatively small. At the same time, there is a problem that the sound energy at the center of the vibration plate is large and the sound energy far from the center is small, resulting in uneven sound field radiation. In addition, the bottom installation will also damage the bottom structure of the sink, resulting in an adverse impact on bottom drainage, and also causing residue residues at the joints. In addition, the ordinary vibrator is used to drive the sound radiation of the circular vibration plate, and multiple vibrators are still required to achieve high-power characteristics to meet the power requirements. The disassembly and installation of large-area disks are relatively cumbersome, and the operation has certain inconveniences. Embedding a large-area vibration plate on the side, the biggest disadvantage is that the vibration plate occupies a large area, and there is a difference in the sound load between the radiation surface close to the water surface and the radiation surface far from the water surface. If the water is not deep enough, the sound radiation effect is relatively poor, and the radiation noise is easily increased due to the proximity of the water surface. At the same time, a large area requires a certain depth of the sink, and from a design perspective, the flexibility is relatively poor. Even when installed on the side, the installation of a large-area vibration plate still has inconveniences and requires the use of tools.

[0007] Meanwhile, due to the installation and connection of the ordinary oscillator, oscillator tray and oscillator box to the water tank, the commonly used welding method and epoxy adhesive bonding method are not convenient for replacement. For the large-area oscillator box and water tank, multiple screws are used for sealing and locking, which is not convenient for disassembly, and both maintenance and replacement are not convenient enough. Tools are required, which is time-consuming and laborious.

[0008] Currently, none of the existing water tank ultrasonic cleaning machines can achieve intelligence, that is, selecting a suitable cleaning method for a suitable cleaning target. Therefore, an ultrasonic cleaning machine with a wide coverage, good cleaning effect, low cost and intelligence is expected by the market.

[0009] Application Content

[0010] The purpose of this application is to provide an intelligent water tank ultrasonic cleaning machine based on an ellipsoidal transducer, which is an ultrasonic cleaning machine with a wide coverage, good cleaning effect, low cost and intelligence.

[0011] To achieve the above purpose, this application provides the following technical solutions: An intelligent water tank ultrasonic cleaning machine based on an ellipsoidal transducer, comprising an ultrasonic cleaning machine body, a control module and an intelligent transducer assembly. The control module is arranged on the ultrasonic cleaning machine body. The ultrasonic cleaning machine body includes a water tank, and the intelligent transducer assembly is connected in the water tank.

[0012] The control module is used to set cleaning data and adjust the operation of the intelligent transducer assembly.

[0013] The intelligent transducer assembly includes a plurality of ellipsoidal transducers. The plurality of ellipsoidal transducers are respectively arranged at different positions of the water tank based on the shape, size of the water tank and the coverage range of the ellipsoidal transducers. The control module adjusts the operation of any one of the ellipsoidal transducers. The connection position between the ellipsoidal transducer and the water tank is the node position of the ellipsoidal transducer. The node is the position where the vibration displacement of the ellipsoidal transducer approaches zero. This intelligent water tank ultrasonic cleaning machine based on an ellipsoidal transducer controls the number and position of the ellipsoidal transducers through reasonable layout. The control module cooperates with the cleaning data to regulate the ellipsoidal transducers, ensuring the high-power characteristic and full-coverage characteristic of the water tank sound field. At the same time, it can adjust the operation of the ellipsoidal transducers according to the actual cleaning situation, realizing refined management and precise cleaning, and achieving a better cleaning effect.

[0014] Preferably, in the existing design, the oscillator works under the stainless-steel bottom plate, which will reduce the electro-acoustic conversion efficiency and increase the noise due to the parasitic vibration of the stainless-steel bottom plate. When the oscillator is welded to the stainless steel, it is easy to fall off or the sound power will decrease due to poor bonding caused by the too-thin stainless steel or the screw falling off during long-term operation. In this application, the ellipsoidal transducer is arranged on the side and / or bottom of the water tank. The ellipsoidal transducer is detachably connected to the water tank, and the ellipsoidal transducer is installed on the water tank through a support flange. The support flange is connected to the water tank through a sealing ring. The connection position of the ellipsoidal transducer is the node position of the ellipsoidal transducer. The radiation surface of the transducer is similar to a sine distribution, and there is a zero point position in the middle. The vibration displacement at the zero point position is close to zero. Therefore, the vibration supported at the zero point position is the smallest. This structure not only ensures the easy maintainability and easy installability of the ellipsoidal transducer, but also ensures the reliable installation of the ellipsoidal transducer, reduces the water-tight risk and maintenance risk. The ellipsoidal transducer is supported and sealed at the installation position, reducing the ineffective vibration of the water tank. On the one hand, it improves the electro-acoustic conversion efficiency, and on the other hand, it reduces the noise caused by ineffective vibration.

[0015] Preferably, the cleaning data includes the material, pollution degree, size and quantity of the object to be cleaned, the size of the water tank, and the quantity, size and positional relationship of the ellipsoidal transducers in the intelligent transducer assembly. The control module controls the quantity and position of the ellipsoidal transducers turned on through the cleaning data. The control module of this application can adjust the turning on and off of any ellipsoidal transducer according to the specific situation during cleaning, reasonably regulate the operation of the intelligent transducer assembly, and achieve refined cleaning while saving costs.

[0016] Preferably, the position of the water tank where the ellipsoidal transducer is installed is provided with a recess matching the bottom shape of the ellipsoidal transducer. The ellipsoidal transducer is completely placed in the recess, so that while the ellipsoidal transducer has good sound radiation performance, it does not interfere or collide with the cleaning object, especially the rigid cleaning object.

[0017] Preferably, the included angle between the side wall of the recess and the side wall of the water tank where it is located is less than 90°.

[0018] Preferably, a protective shell is connected to the outside of the water tank. The protective shell surrounds the four sides of the water tank and the control module. On the one hand, the protective shell can prevent water and sundries from splashing onto the ellipsoidal transducer and the control module, ensuring the safety and reliability of the equipment. On the other hand, it can suppress the back-radiation noise when the ellipsoidal transducer works, thereby reducing the overall noise of the equipment.

[0019] Preferably, the control module adjusts the operation of any ellipsoidal transducer through a single-control power amplifier, and the single-control power amplifier is placed inside the protective shell.

[0020] Preferably, the water tank is connected with a water inlet device and a water drainage device, which is convenient for the entry and exit of cleaning water.

[0021] Compared with the prior art, the beneficial effects of the present application are as follows:

[0022] 1. This intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer utilizes the high power, high electro-acoustic conversion efficiency, and hemispherical sound radiation characteristics of the ellipsoidal ultrasonic transducer. By arranging a small number of multiple transducers in a reasonable manner, on the one hand, the sound power is enhanced, and on the other hand, the transmission distance limitation caused by the ultrasonic cavitation effect is compensated, expanding the sound propagation distance and range inside the sink. The control module cooperates to regulate the ellipsoidal transducer according to the cleaning data, ensuring the high-power characteristics and full-coverage characteristics of the sink sound field, and at the same time, the operation of the ellipsoidal transducer can be adjusted according to the actual cleaning situation, realizing refined management and accurate cleaning, and obtaining better cleaning effects;

[0023] 2. This intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer uses the small volume and high-power characteristics of the ellipsoidal ultrasonic transducer to reduce the number of oscillators, which is beneficial to improving the convenience of installation and maintenance. Installation does not require tools and can be easily operated;

[0024] 3. This intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer utilizes the side-mounted characteristics of a small number of multiple ellipsoidal transducers in combination, avoiding damage to the bottom of the sink and improving the convenience of self-cleaning of the sink. The small number of installed transducers reduces the number of support flanges while also reducing damage to the side of the sink, ensuring the strength of the sink body;

[0025] 4. The ellipsoidal transducer of this intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer is supported and sealed at the nodes, reducing the ineffective vibration of the sink shell. On the one hand, the electro-acoustic conversion efficiency is improved, and on the other hand, the noise caused by ineffective vibration is reduced;

[0026] 5. This intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer forms a combination method through a small number of multiple ellipsoidal transducers, compensating for the problems of limited sound propagation distance and range caused by ultrasonic cavitation, and improving the sound field uniformity and high-power characteristics of a large-area sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. 23 is a three-dimensional structural schematic diagram of the intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer according to Embodiment 1 of the present invention from one angle;

[0028] Figure 2 FIG. 27 is a three-dimensional structural schematic diagram of the intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer according to Embodiment 1 of the present invention from another angle;

[0029] Figure 3 FIG. 31 is a top-view structural schematic diagram of the intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer according to Embodiment 1 of the present invention;

[0030] Figure 4 Schematic structural diagram of the recessed part of the intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer according to Embodiment 1 of the present invention;

[0031] Figure 5 Another schematic structural diagram of the recessed part of the intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer of the present invention;

[0032] Figure 6 Another schematic structural diagram of the recessed part of the intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer of the present invention;

[0033] Figure 7 Schematic diagram of the coverage range of the transducer of the intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer according to Embodiment 1 of the present invention;

[0034] Figure 8 Schematic diagram of the coverage range of the transducer of the intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer according to Embodiment 3 of the present invention;

[0035] Figure 9 Schematic diagram of the node position of the transducer of the intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer according to Embodiment 1 of the present invention;

[0036] Figure 10 Schematic diagram of the node position in the transducer adopted in Embodiment 1 of the present invention. Detailed implementation manners

[0037] The technical solutions in the embodiments of the present application are described clearly and completely below. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0038] Embodiment 1

[0039] As Figure 1-3 shown, an intelligent sink ultrasonic cleaning machine based on an ellipsoidal transducer includes an ultrasonic cleaning machine body, a control module, and an intelligent transducer assembly. The control module is arranged on the ultrasonic cleaning machine body. The ultrasonic cleaning machine body includes a water tank 1, and the intelligent transducer assembly is connected in the water tank 1. The control module is used to adjust the operation of the intelligent transducer assembly according to the cleaning data.

[0040] In this embodiment, the intelligent transducer assembly includes four ellipsoidal transducers 2, and the four ellipsoidal transducers 2 are respectively located at the central positions of the four side walls of the water tank 1, as Figure 9 and 10As shown in the figure, the connection between the ellipsoidal transducer 2 and the water tank 1 is at the node A position of the ellipsoidal transducer 2. The node A is the position where the vibration displacement of the ellipsoidal transducer 2 approaches zero. The ellipsoidal transducer 2 adopts the transducer disclosed in the patent with the authorized announcement number CN109453980B. The ellipsoidal transducer 2 can apply an electric power of about 200W, while the power of an ordinary ultrasonic cleaning oscillator is 40 - 50W. In comparison, it has the characteristics of significantly small volume and high power, such as Figure 7 As shown in the figure, the coverage range of the ellipsoidal transducer 2 is arc-shaped, with high power and hemispherical directivity characteristics. By using a combination of a small number of transducers, the high power and uniform coverage characteristics of the sound field in the water tank can be achieved, and it brings convenience to the installation of the equipment. Therefore, according to the shape and size of the water tank 1 and the coverage range of the ellipsoidal transducer 2, the ellipsoidal transducer 2 is set at different positions of the water tank 1, and reasonable planning makes the coverage range of the entire water tank 1 wider.

[0041] The cleaning data includes the material, pollution degree, size and quantity of the object to be cleaned, the size of the water tank 1, and the quantity, size and positional relationship of the ellipsoidal transducers in the intelligent transducer assembly. The control module controls the quantity and position of the ellipsoidal transducers turned on by analyzing the cleaning data. The control module adjusts the operation of any one ellipsoidal transducer 2, which is convenient for turning on the appropriate quantity and position of the ellipsoidal transducers 2 according to different cleaning targets. The density and specific position of the combined distribution of the ellipsoidal transducers 2 can be designed according to the size and shape of the water tank to obtain high-power sound radiation characteristics and sound field uniformity, so as to ensure the cleaning effect and cleaning efficiency.

[0042] Flexible combination can be achieved through a small number of multiple ellipsoidal transducers 2 to ensure high power and full coverage of the sound field in the water tank 1 without dead corners. According to the requirements of the sound power density, generally 4 transducers can reach 800 - 900W and can cover a water tank of 800mm * 600mm * 350mm, and generally 6 transducers can reach 1200 - 1500W and can cover a water tank of 1200mm * 750mm * 350mm. While the number of ordinary oscillators required to achieve this effect is more than 5 - 6 times that of the ellipsoidal transducers.

[0043] The four ellipsoidal transducers 2 of this embodiment are respectively located on the four side walls of the water tank 1, such as Figure 7 As shown in the figure, the sound field radiation uniformity in the horizontal and vertical directions, that is, the hemispherical sound field radiation characteristics, can make the water tank 1 have good sound field radiation characteristics in the length, width and depth directions. Even if there are certain spatial and range limitations in the sound field radiation due to cavitation obstruction and power limitation, etc., within the limited space, the bottom of the water tank 1 can be in a free state, so that the residue can freely drain from the drainage device and facilitate the production of the bottom guide line of the water tank 1.

[0044] As Figure 4As shown, the position of the ellipsoidal transducer 2 installed in the water tank 1 is provided with a recess 4 that matches the bottom shape of the ellipsoidal transducer 2. The ellipsoidal transducer 2 is completely placed in the recess 4 so that while the ellipsoidal transducer 2 has good acoustic radiation performance, it does not interfere or collide with the cleaning object, especially a rigid cleaning object.

[0045] The ellipsoidal transducer 2 is installed on the water tank 1 through a support flange 3. The support flange 3 is connected to the water tank 1 through a sealing ring. The external thread near the node of the ellipsoidal transducer 2 can be tightened with the support flange 3 with an internal thread welded to the water tank 1. Each transducer has an independent installation feature, which is convenient for replacement and maintenance. Connecting near the node A can effectively reduce the influence of the transducer vibration on the support flange 3. On the one hand, it reduces the ineffective vibration and improves the electro-acoustic conversion efficiency. On the other hand, it reduces the risk of flange detachment. Moreover, by welding the support flange 3 on the water tank 1 and connecting it with the threaded tightening method at the vibration node position of the transducer, the fixing strength of the transducer is increased, and at the same time, the risk of the seal being affected by vibration is avoided. The installation and maintenance of this small-volume transducer are also particularly convenient.

[0046] This application proposes a water tank ultrasonic cleaning machine based on an ellipsoidal transducer, which utilizes the high-power characteristics and hemispherical acoustic field characteristics of the ellipsoidal ultrasonic transducer to ensure the overall high-power characteristics and uniform acoustic field radiation of the water tank cleaning machine, and ultimately ensures the cleaning effect and cleaning efficiency.

[0047] In summary, the present invention not only ensures the ability to apply electric power, electro-acoustic conversion efficiency, and acoustic field uniformity, but also manages to reduce the system noise; it can provide an efficient and environmentally friendly cleaning method for tableware, food materials, etc. in the commercial kitchen field. At the same time, combined with the conventional water tanks on the existing market, it provides an upgrade and replacement method, and can also be used to replace the existing industrial ultrasonic cleaning technology to improve the cleaning ability for objects such as metal structural parts, glass, and semiconductors.

[0048] Embodiment 2

[0049] The difference between this embodiment and Embodiment 1 is that, as Figure 5 shown in or 6, the included angle between the side wall of the recess 4 and the side wall of the water tank 1 where it is located is less than 90°, which can prevent the transducer from colliding with the cleaning object and is not likely to accumulate dirt.

[0050] Embodiment 3

[0051] As Figure 8 shown, the ellipsoidal transducer 2 can also be arranged at the bottom of the water tank 1, which is suitable for a small cleaning machine.

[0052] The above are only the preferred embodiments of the present invention, and do not impose any limitations on the present invention. Any simple modifications, changes, and equivalent transformations made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An intelligent water tank ultrasonic cleaning machine based on an ellipsoidal transducer, characterized in that: The invention comprises an ultrasonic cleaning machine body, a control module and an intelligent transducer assembly, wherein the control module is arranged on the ultrasonic cleaning machine body, the ultrasonic cleaning machine body comprises a water tank (1), and the intelligent transducer assembly is connected in the water tank (1). The control module is used to set cleaning data to adjust the operation of the smart transducer assembly; The intelligent transducer assembly comprises a plurality of ellipsoidal transducers (2), wherein the plurality of ellipsoidal transducers (2) are arranged at different positions of the water tank (1) based on the shape and size of the water tank (1) and the coverage range of the ellipsoidal transducers (2), and the control module adjusts the operation of any ellipsoidal transducer (2), wherein the connection between the ellipsoidal transducer (2) and the water tank (1) is a node (A) position of the ellipsoidal transducer (2), and the node (A) is a position where the vibration displacement of the ellipsoidal transducer (2) approaches zero.

2. The intelligent water tank ultrasonic cleaning machine based on the ellipsoidal transducer according to claim 1 is characterized in that: The cleaning data includes the material, contamination degree, size and quantity of the cleaning target object, the size of the water tank (1), and the number, size and position relationship of the ellipsoidal transducers in the intelligent transducer assembly. The control module controls the number and position of the ellipsoidal transducers to be opened according to the cleaning data.

3. The intelligent water tank ultrasonic cleaning machine based on the ellipsoidal transducer according to claim 1 or 2, characterized in that: The ellipsoidal transducer (2) is arranged on the side and / or the bottom of the water tank (1).

4. The intelligent water tank ultrasonic cleaning machine based on the ellipsoidal transducer according to claim 1 is characterized in that: The position of the water tank (1) where the ellipsoidal transducer (2) is installed is matched with the bottom shape of the ellipsoidal transducer (2) and is provided with a recessed portion (4), and the ellipsoidal transducer (2) is completely placed in the recessed portion (4).

5. The intelligent water tank ultrasonic cleaning machine based on the ellipsoidal transducer according to claim 1 is characterized in that: The ellipsoidal transducer (2) is mounted on the water tank (1) via a supporting flange (3), and the supporting flange (3) is connected to the water tank (1) via a sealing ring.

6. The intelligent water tank ultrasonic cleaning machine based on the ellipsoidal transducer according to claim 4 is characterized in that: The angle between the side wall of the recessed portion (4) and the side wall of the water tank (1) where it is located is less than 90°.

7. The intelligent water tank ultrasonic cleaning machine based on the ellipsoidal transducer according to claim 1 is characterized in that: The outside of the water tank (1) is connected to a protective shell (5), which surrounds the four sides of the water tank (1) and the control module.

8. The intelligent water tank ultrasonic cleaning machine based on the ellipsoidal transducer according to claim 7 is characterized in that: The control module adjusts the operation of any ellipsoidal transducer (2) through a single-control power amplifier, and the single-control power amplifier is placed inside the protective housing (5).

9. The intelligent water tank ultrasonic cleaning machine based on the ellipsoidal transducer according to claim 8, characterized in that: The water tank (1) is connected with a water inlet device and a water outlet device.

10. The intelligent water tank ultrasonic cleaning machine based on ellipsoidal transducer according to claim 1, characterized in that: The ellipsoidal transducer (2) is detachably connected to the water tank (1).

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