A high-sealing waterproof dishwasher box cover

Abstract

This utility model discloses a highly airtight waterproof dishwasher lid, belonging to the technical field of waterproof lids. It includes a lid body with a guide plate on top; an electromagnetic shielding layer on top of the lid body, an anti-mildew layer on top of the electromagnetic shielding layer, and a wear-resistant layer on top of the anti-mildew layer, with the top of the wear-resistant layer connected to the bottom of the guide plate; fixing components for securing the lid body are provided around its perimeter; a sealing component for sealing between the lid body and the PCB box is provided at the bottom of the lid body; three water channels are equidistantly distributed on the top of the guide plate; and a row of guide grooves is provided at both ends of the top of the guide plate, with both rows arranged in a V-shape. Through the water channels and guide grooves on the guide plate, water is guided away from the guide plate, preventing water from contacting electronic components and circuits on the PCB board, preventing damage to electronic components due to short circuits, ensuring the normal operation of the PCB board, and reducing the probability of dishwasher malfunctions.

Description

Technical Field

[0001] This utility model relates to the field of waterproof box lid technology, specifically a highly airtight waterproof dishwasher box lid. Background Technology

[0002] A dishwasher is a household appliance used to clean dishes. It can effectively free up manpower and improve the efficiency and cleanliness of dish cleaning. Dishwashers are equipped with printed circuit boards, and the dishwasher lid is a cover used to protect the printed circuit boards and ensure the normal operation of the dishwasher.

[0003] While traditional dishwasher lids can fit snugly against the cabinet to protect the internal circuit boards, they are not effective at preventing water damage. In actual use, dishwashers typically have a keyhole in the center of the inner door to ensure a secure lock when closed. When dishes are placed on the table, the door opens horizontally, allowing residual liquid from the dishes to enter the dishwasher control panel through this keyhole. When water comes into contact with the electronic components and circuitry on the PCB board, it alters the normal current path, causing damage to the components and potentially leading to a malfunction of the entire circuit board. Wetting the control board can cause short circuits or damage, and may even lead to a fire, posing a safety hazard. Furthermore, moisture accelerates the corrosion and rusting of metal components on the PCB board. Utility Model Content

[0004] The purpose of this invention is to provide a highly waterproof dishwasher lid with excellent sealing performance, in order to solve the problem mentioned in the background art that current lids on the market cannot effectively prevent water damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a highly airtight waterproof dishwasher lid, comprising a lid body, a guide plate on the top of the lid body; an electromagnetic shielding layer on the top of the lid body, an anti-mildew layer on the top of the electromagnetic shielding layer, a wear-resistant layer on the top of the anti-mildew layer, and the top of the wear-resistant layer being connected to the bottom of the guide plate; fixing components for fixing the lid body are provided around the lid body, and a sealing component for sealing between the lid body and the PCB box is provided at the bottom of the lid body.

[0006] Preferably, the fixing component includes four storage slots formed around the inside of the cover, each of the four storage slots is provided with an elastic element, each of the four elastic elements is provided with a limiting ball at the end away from the storage slot, and each of the four elastic elements is provided with a spring between the end of the four elastic elements near the storage slot and the four storage slots respectively.

[0007] Preferably, the sealing assembly includes four sealing strips disposed around the bottom of the cover body, each of the four sealing strips having a sealing edge at its bottom, and each of the four sealing edges having a row of sealing balls at one end.

[0008] Preferably, the surface of the guide plate is provided with a waterproof coating, and one end of the guide plate is higher than the other end.

[0009] Preferably, the top of the guide plate has three water channels, which are equidistant from each other.

[0010] Preferably, a row of guide grooves is formed at both ends of the top of the guide plate, and the two rows of guide grooves are arranged in a V-shape.

[0011] Preferably, the four sealing strips are fitted together, and the cross-sectional area of ​​the bottom of each of the four sealing edges is larger than the cross-sectional area of ​​the top.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] (1) The water flow channel and guide channel opened on the guide plate achieve the effect of guiding the water away from the guide plate, which can avoid the water from contacting the electronic components and circuits on the PCB board, prevent the electronic components from being damaged due to short circuit, ensure the normal operation of the PCB board, and reduce the probability of dishwasher failure.

[0014] (2) By setting the fixing components, the cover is fixed to the box, which can effectively block dust, debris, moisture and other external substances from entering the box, protecting the internal electronic components, mechanical parts and so on from pollution and damage. When it is necessary to inspect, maintain or replace the circuit board inside the box, the cover can be easily opened, the corresponding operation can be completed and then it can be firmly fixed, which improves maintenance efficiency and reduces maintenance costs.

[0015] (3) By setting the sealing components, the sealing effect is achieved after the cover and the box are connected, which can further prevent water, dust, dirt, debris and other things from entering the box and prevent the internal electronic components, mechanical parts and other parts from being damaged by moisture. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 This is a bottom view of the structure of this utility model;

[0018] Figure 3 This is a structural development diagram of the present invention;

[0019] Figure 4 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 5 This is a side view of the structure of this utility model;

[0021] Figure 6 This utility model Figure 4The main view of the structure at point A in the middle.

[0022] In the diagram: 1. Cover; 2. Guide plate; 3. Electromagnetic shielding layer; 4. Anti-mildew layer; 5. Wear-resistant layer; 6. Storage groove; 7. Elastic component; 8. Limiting ball; 9. Spring; 10. Sealing strip; 11. Sealing edge; 12. Sealing ball; 13. Water channel; 14. Guide channel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides the following technical solution: a highly airtight and waterproof dishwasher lid:

[0025] Example 1: The deflector plate 2 can guide water away from the cover 1, such as... Figures 1-6 As shown, the device includes a cover 1, a guide plate 2 on top of the cover 1, an electromagnetic shielding layer 3 on top of the cover 1, an anti-mildew layer 4 on top of the electromagnetic shielding layer 3, a wear-resistant layer 5 on top of the anti-mildew layer 4, the top of the wear-resistant layer 5 being connected to the bottom of the guide plate 2, a waterproof coating on the surface of the guide plate 2, and one end of the guide plate 2 being higher than the other end, three water channels 13 being opened on the top of the guide plate 2, the three water channels 13 being equidistantly distributed, and a row of guide grooves 14 being opened at both ends of the top of the guide plate 2, and both rows of guide grooves 14 being arranged in a V-shape.

[0026] When water is on the surface of the guide plate 2, it will slide off the surface of the guide plate 2 under the action of the water channel 13. One end of the guide plate 2 is higher than the other, forming an inclined angle to facilitate water flow. When water is inside the guide channel 14, it flows into the water channel 13 at a V-shaped angle, and then flows out from inside the water channel 13. The waterproof coating can be a nano-waterproof coating, whose main components include perfluoropolyether compounds, electronic-grade environmentally friendly non-corrosive hydrofluoroether solvents, etc. These substances are tightly bound in molecular form, which can quickly form a thin, transparent protective film on the surface of the guide plate 2. When water comes into contact with this coating, it will condense into water droplets and roll off. Water molecules cannot spread on the coating surface, thus achieving excellent waterproof and moisture-proof effects. At the same time, the coating can also make the dust and dirt attached to the surface of the lid slide off quickly with the gravity of the water droplets, taking away the surface dust and most of the dirt, achieving a double self-cleaning effect. The electromagnetic shielding layer 3 is composed of conductive metal particles and resin. The metal particles form a conductive network in the electromagnetic shielding layer 3, which can reflect and absorb electromagnetic waves, improve the anti-interference ability of the circuit board, and ensure the normal operation of the dishwasher. The anti-mildew layer 4 can be made of anti-mildew latex paint, which can effectively inhibit the growth of mold and also play a role in moisture protection. The wear-resistant layer 5 can be made of polyurethane material. Polyurethane has good flexibility, wear resistance and chemical corrosion resistance, which can form a tough protective film on the plastic surface, effectively resisting friction, scratches and chemical corrosion.

[0027] Example 2: Unlike Example 1, the fixing components can be used to fix the cover 1 to the box body, such as... Figure 1 , Figure 2 , Figures 4-6 As shown, the cover 1 is provided with fixing components around its perimeter. The fixing components include four storage slots 6 formed around the inside of the cover 1. Each of the four storage slots 6 is provided with an elastic element 7. Each of the four elastic elements 7 is provided with a limiting ball 8 at the end away from the storage slot 6. Each of the four elastic elements 7 is provided with a spring 9 between the end of the four elastic elements 7 and the storage slot 6 respectively.

[0028] When the cover 1 needs to be installed inside the box, the cover 1 can be placed directly on the appropriate box and then pushed down. The limiting ball 8 then contacts the perimeter of the box, thereby squeezing the elastic element 7 to move inside the storage slot 6 and squeezing the spring 9. After moving to the appropriate position, the limiting ball 8 will be reset under the action of the spring 9 and the elastic element 7, thus fixing the cover 1. When the cover 1 needs to be removed, simply pull the cover 1 upward to make it move the limiting ball 8 to squeeze the elastic element 7.

[0029] Example 3: Unlike Example 2, the sealing component further enhances the waterproofing effect, such as... Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the bottom of the cover 1 is provided with a sealing assembly for sealing between the cover 1 and the PCB box. The sealing assembly includes four sealing strips 10 arranged around the bottom of the cover 1. Each of the four sealing strips 10 has a sealing edge 11 at the bottom. Each of the four sealing edges 11 has a row of sealing balls 12 at one end. The four sealing strips 10 fit together with each other, and the cross-sectional area of ​​the bottom of each of the four sealing edges 11 is larger than the cross-sectional area of ​​the top.

[0030] When the lid 1 enters the box, it will cause the sealing strip 10 and sealing edge 11 to move. The sealing strip 10 and sealing edge 11 are squeezed and deformed, filling the gap between the box and the lid 1, preventing dust, moisture and other substances from entering the box. The cross-sectional area of ​​the bottom of the sealing edge 11 is larger than that of the top, thus forming a lip structure. The lip is squeezed and deformed, and fits tightly against the surface of the box, forming multiple sealing lines. The sealing ball 12 is in close contact with the surface of the box to form a sealing point or sealing line, further increasing the sealing pressure and effect.

[0031] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A highly airtight waterproof dishwasher lid, comprising a lid body (1), wherein a guide plate (2) is provided above the lid body (1); Its features are: The cover (1) is provided with an electromagnetic shielding layer (3) on top, the electromagnetic shielding layer (3) is provided with an anti-mildew layer (4) on top, the anti-mildew layer (4) is provided with a wear-resistant layer (5) on top, and the top of the wear-resistant layer (5) is connected to the bottom of the guide plate (2). The cover (1) is provided with fixing components around its perimeter to fix the cover (1), and the bottom of the cover (1) is provided with sealing components to seal the cover (1) and the PCB box.

2. A high containment dishwasher lid according to claim 1, wherein: The fixing component includes four storage slots (6) formed around the inside of the cover (1). Each of the four storage slots (6) is provided with an elastic element (7). Each of the four elastic elements (7) is provided with a limiting ball (8) at the end away from the storage slot (6). Each of the four elastic elements (7) is provided with a spring (9) between the end near the storage slot (6) and the four storage slots (6).

3. A high containment dishwasher lid according to claim 1, wherein: The sealing assembly includes four sealing strips (10) arranged around the bottom of the cover (1), each of the four sealing strips (10) having a sealing edge (11) at the bottom, and each of the four sealing edges (11) having a row of sealing balls (12) at one end.

4. The high containment dishwasher lid of claim 1, wherein: The surface of the guide plate (2) is provided with a waterproof coating, and one end of the guide plate (2) is higher than the other end.

5. The high containment dishwasher lid of claim 1, wherein: The top of the guide plate (2) is provided with three water channels (13), which are equidistant from each other.

6. The high containment dishwasher lid of claim 1, wherein: The top of the guide plate (2) has a row of guide grooves (14) at both ends, and the two rows of guide grooves (14) are arranged in a V-shape.

7. A high containment dishwasher lid according to claim 3, wherein: The four sealing strips (10) are fitted together, and the cross-sectional area at the bottom of each of the four sealing edges (11) is larger than the cross-sectional area at the top.

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