Piezoelectric atomization module for disinfection robot

Abstract

The utility model discloses a piezoelectric atomization module for disinfection robot belongs to piezoelectric atomization technical field, this module includes: atomization function layer, circuit integration layer, liquid storage layer, atomization piece, liquid guide element and circuit board, atomization function layer, circuit integration layer and liquid storage layer are sequentially arranged from top to bottom, atomization piece sets up on atomization function layer, circuit board is fixed on circuit integration layer, and circuit board is connected with atomization piece electrically, the liquid for atomization is equipped in liquid storage layer, one end of liquid guide element is located in liquid storage layer, and the other end extends to atomization piece place upwards, the through -hole of cylindrical shape is formed between circuit integration layer and atomization function layer, and liquid guide element is worn in the through -hole. The utility model can overcome the defect that the piezoelectric atomization module of existing because waterway system is above circuit system leads to liquid overflow or wet circuit and causes short circuit, equipment scrappage rate is high.

Description

Technical Field

[0001] This invention belongs to the field of piezoelectric atomization technology, specifically relating to a piezoelectric atomization module for a disinfection robot. Background Technology

[0002] In the treatment of ENT diseases, respiratory infections, acute and chronic bronchitis, asthma, pneumonia, and lung infections, piezoelectric atomization modules are used. These modules utilize piezoelectric waves to cavitate the medication, forming a mist-like aerosol on the surface of the medication. This aerosol is then delivered through an air supply system and inhaled by the patient via the airway, allowing the medication to directly target the lesion. This is a relatively effective method of drug delivery and is currently widely used in the medical field. However, because existing piezoelectric atomization modules have a water system (water tank, drug tank, etc.) located above the electrical system, and are integrated into a single unit, water overflow during operation causes severe corrosion of the outer casing, making it irreparable and resulting in a high rate of failure. Simultaneously, the internal circuit boards and electrical components corrode, and may even short-circuit, posing a safety hazard. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the aforementioned related technologies.

[0004] Therefore, the purpose of this invention is to provide a piezoelectric atomization module for a disinfection robot, which can overcome the defects of existing piezoelectric atomization modules, such as liquid overflow or wetting of the circuit caused by the water system being above the circuit system, resulting in short circuits and high equipment scrap rate.

[0005] To solve the above-mentioned technical problems, the present invention is implemented as follows: This invention provides a piezoelectric atomization module for a disinfection robot, the module comprising: an atomization functional layer, a circuit integration layer, a liquid storage layer, an atomizing sheet, a liquid guiding element, and a circuit board; The atomizing functional layer, the circuit integration layer, and the liquid storage layer are arranged sequentially from top to bottom; The atomizing sheet is disposed on the atomizing functional layer, the circuit board is fixed on the circuit integration layer, and the circuit board is electrically connected to the atomizing sheet; The liquid storage layer contains a drug solution to be atomized; One end of the liquid guiding element is located inside the liquid storage layer, and the other end extends upward to the atomizing plate.

[0006] In addition, the piezoelectric atomization module for a disinfection robot according to the present invention may also have the following additional technical features: In some embodiments, the atomizing functional layer is plate-shaped and has a plurality of arrayed holes, each of which is a boss-shaped protrusion, and the atomizing sheet is fixed on the hole.

[0007] In some embodiments, the atomizing functional layer is further provided with a plurality of rectangular holes; the wires electrically connecting the circuit board and the atomizing sheet are passed through the rectangular holes.

[0008] In some embodiments, the circuit integration layer has grooves and a plurality of holes; The circuit board is disposed within the groove; A cylindrical through-hole is formed between the hole and the atomizing functional layer, and the liquid guiding element passes through the through-hole.

[0009] In some embodiments, the number of the grooves, the circuit board, and the atomizing sheet are the same.

[0010] In some embodiments, the liquid storage layer is a groove-shaped structure with an open top, and a liquid filling pipe is provided on its exterior. One end of the liquid filling pipe is connected to the groove-shaped structure, and the other end is connected to an external liquid filling device.

[0011] In some of these embodiments, the fluid guiding element is a columnar porous sponge.

[0012] In some embodiments, the atomizing sheet is an ultrasonic piezoelectric atomizing sheet; The atomizing plate is provided with a mesh array; the diameter of a single pore in the mesh array is 5μm, and the pore density is 900 pores / cm².

[0013] In some embodiments, the circuit integration layer has switch holes for mounting switches.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: In this embodiment of the invention, the piezoelectric atomizing mold for the disinfection robot has a shell consisting of three layers (L1 atomizing functional layer, L2 circuit integration layer, and L3 liquid storage layer) arranged in parallel, achieving physical isolation between the atomizing plate, the circuit board, and the liquid storage tank. This design fundamentally prevents liquid leakage from the storage tank or moisture generated by atomization from wetting the circuit board, effectively preventing short circuits and reducing the risk of equipment failure. The through-hole between the L1 and L2 layers isolates the circuit area, further blocking the path of liquid contact with the circuit and improving the durability of the equipment. In this embodiment of the invention, the piezoelectric atomizing mold for the disinfection robot has a columnar porous sponge liquid guiding element inserted in the through hole, which can be detached from the bottom of the through hole for easy liquid aspiration, liquid addition or replacement without disassembling the overall structure, thus reducing maintenance costs. In this embodiment of the invention, the piezoelectric atomization module for the disinfection robot has a liquid storage tank that continuously supplies liquid to the atomizing plate through a liquid guiding element (porous sponge). The liquid can be replenished at any time with the liquid addition tube to ensure a continuous and stable atomization process and improve treatment efficiency. In this embodiment of the invention, the piezoelectric atomization module for the disinfection robot provided has each component (atomizing plate, circuit board, liquid guiding element) fixed by standardized holes / grooves, with a clear structure that facilitates individual disassembly, replacement or repair.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a piezoelectric atomization module structure disclosed in one embodiment of the present invention; Figure 2 This is a structural diagram of the atomizing functional layer (L1) disclosed in one embodiment of the present invention; Figure 3 This is a schematic diagram of the circuit integration layer (L2) structure disclosed in an embodiment of the present invention; wherein, (a) is a top view and (b) is a side view; Figure 4 This is a structural diagram of a liquid storage layer (L3) disclosed in an embodiment of the present invention; wherein, (a) is a top view and (b) is a side view; Figure 5 This is a diagram showing the atomized particle size test results disclosed in one embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1-Atomizing plate hole; 2-Wiring hole; 3-Liquid guiding element through hole; 4-Groove; 5-Switch hole; 6-Liquid storage tank; 7-Fixing component; 8-Liquid filling pipe. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0020] In some embodiments of the present invention, a piezoelectric atomization module for a disinfection robot is provided, comprising: A liquid storage tank is used to store liquid substrates. The liquid guiding element is configured to be in fluid communication with the liquid reservoir to draw in the liquid matrix; Piezoelectric atomizing sheet with an atomizing surface; ultrasonic atomizing sheet is used to ultrasonically atomize the liquid matrix absorbed by the liquid guiding element to generate an aerosol. The circuit board supplies power to the atomizing plate so that it can function properly. A seal for sealing at least a portion of a liquid reservoir; the seal is also configured to maintain contact with at least a portion of a liquid guiding element and to abut the at least a portion of the liquid guiding element against an atomizing surface.

[0021] The casing is divided into three layers, which respectively house the atomizing plate, the circuit board, and the liquid storage tank to prevent the atomized liquid from wetting the circuit board and causing a short circuit that could damage the equipment.

[0022] The sealing element is hollow and forms a channel for placing the liquid guiding element. The channel has a first end and a second end opposite to the first end. The first end is connected to the liquid storage tank, and the end of the second end is in contact with the atomizing plate. One end of the liquid guiding element is connected to the liquid in the liquid storage tank to draw in the liquid matrix, and the other end is in contact with the atomizing surface to transfer the liquid matrix to the atomizing plate.

[0023] The housing consists of three parts. The first layer has neatly arranged holes to hold and fix the atomizing plate; each hole has an outer diameter of 20mm, an inner diameter of 16mm, and a depth of 0.5mm. The second layer has nine identical rectangular grooves, each 50mm long, 32mm wide, and 0.3mm thick, for holding and fixing the circuit board. The L2 layer also has an additional hole for housing the switch. The third layer, 250mm long, 200mm wide, and 100mm high, is used to store the liquid medicine.

[0024] The fluid guiding element is selected from those mainly or essentially made of fibers.

[0025] The piezoelectric atomization module includes a piezoelectric ceramic sheet with through holes, the pore size of which is between 5 and 20 micrometers.

[0026] Example 1: Please see Figure 1 As shown, in this embodiment of the present invention, the piezoelectric atomizing module mainly consists of an atomizing plate, a circuit board, a liquid storage tank, a liquid filling pipe, a liquid guiding element, a sealing component, and a housing.

[0027] Piezoelectric atomizing sheet: approximately 16mm in diameter and 0.5mm in thickness; its resonant frequency, measured by an impedance analyzer, is 108kHz (matching the mechanical resonance peak of the atomizing sheet). The drive circuit uses constant current mode, with an operating voltage of 5.0 VDC, a current of (300±5) mA, and a power of approximately 1.5W. The atomizing sheet is fabricated using a mesh array prepared by laser micromachining technology, with a single pore diameter of approximately 5μm and a pore density of approximately 900 pores / cm². The atomizing sheet is directly connected to the circuit board using a 2.0 terminal wire.

[0028] Circuit board: The novel circuit board used in this experiment, such as... Figure 5 As shown, it typically contains 1-6 2.0 terminal interfaces for connecting the atomizing plate (the actual picture shows a circuit board with four 2.0 terminal interfaces), and the circuit board is 50cm long and 32cm wide.

[0029] Liquid-conducting element: A columnar porous sponge used to absorb the liquid medicine in the storage tank and supply it to the atomizing plate. The sponge is, but is not limited to, mainly or essentially composed of fibers. The fibers include natural fibers and / or modified natural fibers and / or synthetic fibers. The natural fibers include fibers from plants and animals, such as plant fibers like cotton and hemp, animal fibers like silk, and cellulose. The fibers include modified natural fibers such as modified cellulose and carbon fiber. The synthetic fibers include glass fibers and organic polymer fibers. The organic polymers include polyester, polyamide, polyacrylonitrile, polyvinyl alcohol, polyvinyl chloride, polypropylene, polyurethane, and aromatic amides. The columnar porous sponge liquid-conducting element and the ultrasonic atomizing module have a separate structure, which can be separated from the bottom surface of the piezoelectric atomizing module, thereby facilitating the absorption or addition of liquid outside the ultrasonic atomizing module, or making it easy to replace.

[0030] The housing consists of three functional layers: L1, L2, and L3. Layer L1 is the atomizing layer, used to house the atomizing plate. Because the atomizing plate has a sealed portion to prevent damage during use, layer L1 has 54 holes for housing the atomizing plate. Each hole is a boss-shaped protrusion used to secure the atomizing plate. Figure 2 As shown in Figure 1, the outer diameter of hole 1 is between 16-20mm, the inner diameter is between 8-16mm, and the depth is between 0.3-0.6mm. The outer diameter, inner diameter, and depth of the hole need to be determined according to the actual situation of the atomizing plate. This hole position is only suitable for the atomizing plate used in this utility model. In addition to the hole position, there are three rectangular holes with a width of about 3-5mm and a length of about 180-210mm, used for wiring, such as... Figure 2 In step 2, connect the atomizing plate and the circuit board via a 2.0 terminal wire. After connection, seal the holes with a sealant to prevent the atomized liquid from flowing through the holes and wetting the lower circuit board, causing a short circuit.

[0031] Layer L2 is the circuit board integration layer, primarily used to house the circuit board that powers the atomizing element. Corresponding to the holes in layer L1, there are also holes in layer L2. These holes, together with the holes in layer L1, form a through-hole with a wall thickness, used to house liquid guiding components, such as... Figure 3 As shown in Figure 3. Simultaneously, because this through-hole has a wall thickness, it is directly separated from the L2 layer, preventing leakage from the liquid-conducting components from wetting the circuit board and causing a short circuit. The L2 layer has nine identical rectangular grooves, as shown in Figure 3. Figure 3 As shown in Figure 4, the hole is approximately 30-90mm long, 20-40mm wide, and 0.3-0.5mm thick, used to place and secure the circuit board. Additionally, there is an extra hole in the L2 layer, such as... Figure 3 As shown in Figure 5, it is used to connect the switch.

[0032] Layer L3 is a liquid storage tank, 250mm long, 200mm wide, and 100mm high, used to store the medicinal solution, such as... Figure 4 As shown in Figure 6. There is also a liquid filling pipe outside the entire casing. When the liquid in the storage tank is used up, liquid is continuously added through the filling pipe to ensure continuous use. The filling pipe is 200mm long, with an outer diameter of 20mm and an inner diameter of 18mm. Figure 4 As shown in Figure 8. Figure 4 The number 7 in the diagram represents four fasteners, which are used to connect and secure the water tank to other layers, and are then sealed using sealing components.

[0033] In some preferred embodiments of the present invention, liquid medicine is added to the storage tank 6 through a liquid inlet tube. The liquid medicine wets the liquid guiding element and provides liquid medicine to the atomizing plate. Under the action of vibration, the atomizing plate sprays the liquid medicine out through its pores for the patient to absorb. The particle size D50 of the sprayed liquid medicine is about 6.8 micrometers. The test results are as follows: Figure 5 As shown.

[0034] Any part of this invention not described in detail can be referred to in the prior art or in the art known to those skilled in the art. This embodiment does not limit such part and will not describe it in detail here.

[0035] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A piezoelectric atomization module for a disinfection robot, characterized in that, The module includes: an atomizing functional layer, a circuit integration layer, a liquid storage layer, an atomizing plate, a liquid guiding element, and a circuit board; The atomizing functional layer, the circuit integration layer, and the liquid storage layer are arranged sequentially from top to bottom; The atomizing sheet is disposed on the atomizing functional layer, the circuit board is fixed on the circuit integration layer, and the circuit board is electrically connected to the atomizing sheet; The liquid storage layer contains a drug solution to be atomized; One end of the liquid guiding element is located inside the liquid storage layer, and the other end extends upward to the atomizing plate.

2. The piezoelectric atomization module for a disinfection robot according to claim 1, characterized in that, The atomizing functional layer is plate-shaped and has a number of arrayed holes, each of which is a boss-shaped protrusion, and the atomizing sheet is fixed on the hole.

3. The piezoelectric atomization module for a disinfection robot according to claim 2, characterized in that, The atomizing functional layer is also provided with several rectangular holes; the wires that electrically connect the circuit board and the atomizing sheet are passed through the rectangular holes.

4. The piezoelectric atomization module for a disinfection robot according to claim 1, characterized in that, The circuit integration layer is provided with grooves and several holes; The circuit board is disposed within the groove; A cylindrical through-hole is formed between the hole and the atomizing functional layer, and the liquid guiding element passes through the through-hole.

5. The piezoelectric atomization module for a disinfection robot according to claim 4, characterized in that, The number of grooves, the circuit board, and the atomizing sheet are the same.

6. The piezoelectric atomization module for a disinfection robot according to claim 1, characterized in that, The liquid storage layer is a groove-shaped structure with an opening at the top. A liquid filling pipe is provided on the outside of the liquid filling pipe. One end of the liquid filling pipe is connected to the groove-shaped structure, and the other end is connected to an external liquid filling device.

7. The piezoelectric atomization module for a disinfection robot according to claim 1, characterized in that, The fluid guiding element is a columnar porous sponge.

8. The piezoelectric atomization module for a disinfection robot according to claim 1, characterized in that, The atomizing sheet is an ultrasonic piezoelectric atomizing sheet; The atomizing plate is provided with a mesh array; the diameter of a single pore in the mesh array is 5μm, and the pore density is 900 pores / cm².

9. The piezoelectric atomization module for a disinfection robot according to claim 1, characterized in that, The circuit integration layer has switch holes for connecting switches.

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