Household appliance with water-washing water-inflow-preventing structure

Abstract

The utility model discloses a household electrical appliance with a washing water inflow prevention structure, which comprises an electrical appliance main body, the lower end of the electrical appliance main body is provided with a bottom cover assembly, and the bottom cover assembly is provided with a drain hole which is communicated with the inside of the electrical appliance main body and the outside and is used for draining water or ventilating. An electromagnetic valve assembly used for opening and closing the drain hole is arranged between the electric appliance body and the bottom cover assembly. The utility model has the advantage of preventing water from entering during water washing.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a household appliance with a water-washing and water-proof structure. Background Art

[0002] In modern family life, household appliances, especially kitchen appliances, play a vital role. These appliances include but are not limited to microwave ovens, ovens, dishwashers and various food processors. In order to ensure the safety and efficiency of these appliances, international standards stipulate strict design requirements, one of which is that the bottom of the product must be equipped with a drainage hole. The purpose of this design requirement is to allow the water or liquid inside the appliance to drain smoothly, preventing water accumulation from causing damage to the appliance or performance degradation.

[0003] However, the presence of drain holes also brings some problems that cannot be ignored. First, when consumers clean and maintain these appliances, they often use water washing. In this process, water or other cleaning liquids may splash into the interior of the appliance through the drain holes, especially if the operation is improper or the cleaning tools are used improperly. In this case, the liquid may not only contact key components of the appliance, such as circuit boards and motors, but may also penetrate into the insulating materials inside the appliance, causing short circuits or corrosion, thereby causing appliance failures.

[0004] What's more serious is that if the liquid inside the appliance accumulates to a certain extent, it may cause electrical safety accidents such as electric shock or fire. In addition, long-term moisture erosion may also cause rust on the metal parts of the appliance, reducing the service life and performance of the appliance.

[0005] Therefore, although the drainage hole is part of complying with the national standard design requirements, the potential risks it brings cannot be ignored and need to be addressed through safer design and usage guidance. The present utility model is made based on this situation. Utility Model Content

[0006] The utility model aims to overcome the deficiencies of the prior art and provide a household appliance with a water-washing and water-proof structure.

[0007] The utility model is realized by the following technical solutions:

[0008] In order to solve the above technical problems, the utility model provides a household appliance with a water-washable and water-proof structure, comprising an appliance main body, a bottom cover assembly being provided at the lower end of the appliance main body, a drainage hole connecting the interior of the appliance main body with the outside and used for drainage or ventilation being opened on the bottom cover assembly, and an electromagnetic valve assembly for opening and closing the drainage hole being provided between the appliance main body and the bottom cover assembly.

[0009] In order to further solve the technical problem to be solved by the utility model, the utility model provides a household appliance with a water-washing and water-proof structure, wherein the solenoid valve assembly includes a valve body containing a coil, the valve body is provided with a liftable push rod, and a reset elastic member that elastically presses the push rod downward, and a sealing member is provided at the lower end of the push rod; when the solenoid valve assembly is powered on, the push rod extends downward, and the sealing member is inserted into the drain hole to close the drain hole; when the solenoid valve assembly is powered on, the push rod retracts upward, and the sealing member is separated from the drain hole to open the drain hole.

[0010] In order to further solve the technical problem to be solved by the utility model, the utility model provides a household appliance with a water-washing and water-proof structure, in which the appliance body is provided with a power supply component for supplying power to it, the solenoid valve component and the power supply component are electrically connected, and when the appliance body is energized, the solenoid valve component is also energized.

[0011] In order to further solve the technical problem to be solved by the utility model, the utility model provides a household appliance with a water-washable and water-proof structure, wherein the sealing member is a sealing rubber plug and includes a columnar plug head and an annular sealing step arranged on the side of the plug head.

[0012] In order to further solve the technical problem to be solved by the utility model, the utility model provides a household appliance with a water-washing and water-proof structure, wherein the drainage hole is in a trumpet shape that gradually shrinks from the inside to the outside.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The key innovation of the utility model is to add a solenoid valve assembly between the main body of the appliance and the bottom cover assembly. The solenoid valve assembly can realize the opening and closing control of the drain hole. During the operation of the appliance, the solenoid valve assembly will open the drain hole to ensure the necessary ventilation or drainage function and meet the safe operation requirements of the appliance. However, when the appliance is turned off or is being cleaned and maintained, the solenoid valve assembly closes the drain hole to prevent moisture from entering the internal space of the appliance through the drain hole during the cleaning process, effectively preventing the occurrence of appliance failures and safety risks.

[0015] 2. In the present invention, the solenoid valve assembly can seamlessly and automatically switch its working mode according to the working state of the main body of the electrical appliance through direct electrical connection with the power supply assembly. This automatic function allows the solenoid valve assembly to automatically open the drain hole to discharge gas or liquid when the electrical appliance is started, and automatically close the drain hole when the electrical appliance is turned off or the power is disconnected to prevent the intrusion of external moisture or impurities. This electrical connection configuration not only simplifies the circuit design of the electrical appliance, but also enhances the functional integration and operational convenience of the electrical appliance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 It is an exploded schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figures 1 to 3 The household appliance with a water-washable and water-proof structure shown comprises an appliance body 1 , wherein a bottom cover assembly 2 is provided at the lower end of the appliance body 1 to form a closed space 11 to protect the components inside the appliance.

[0022] According to relevant international standards, the bottom cover assembly 2 must be provided with a drain hole 21 to ensure that the internal space 11 of the appliance body 1 is connected to the outside, which is extremely necessary for drainage or ventilation. The provision of the drain hole 21 solves the problem of internal water accumulation or pressure accumulation, but it also becomes a potential channel for water and debris to enter the internal space 11 of the appliance.

[0023] In order to overcome this shortcoming, the key innovation in the utility model is to add a solenoid valve assembly 3 between the electrical body 1 and the bottom cover assembly 2. The solenoid valve assembly 3 can realize the opening and closing control of the drain hole 21. During the operation of the appliance, the solenoid valve assembly 3 will open the drain hole 21, ensuring the necessary ventilation or drainage function and meeting the safe operation requirements of the appliance. However, when the appliance is in the off state or is being cleaned and maintained, the solenoid valve assembly 3 closes the drain hole 21 to prevent moisture in the cleaning process from entering the internal space 11 of the appliance through the drain hole 21, effectively preventing the occurrence of electrical failures and safety risks.

[0024] More specifically, the solenoid valve assembly 3 includes a valve body 31 containing a coil, and a liftable push rod 32 is provided in the valve body 31. The push rod can perform lifting and lowering movements under the action of electromagnetic force. The lifting and lowering movement of the push rod 32 is controlled by the power-on and power-off states of the solenoid valve assembly 3. A reset elastic member 33 is provided on the upper part of the push rod 32, which is usually a spring or other elastic material. Its function is to push the push rod 32 downward by elastic force when the solenoid valve assembly 3 is powered off, so as to ensure that the push rod 32 can quickly and accurately perform its function of closing the drain hole 21.

[0025] The lower end of the top rod 32 is equipped with a seal 34, which is usually made of wear-resistant and corrosion-resistant materials, such as rubber or silicone, to ensure that it can be tightly inserted into the drain hole 21 and form an effective seal. When the solenoid valve assembly 3 is powered off, the top rod 32 extends downward under the action of the reset elastic member 33, and the seal 34 is inserted into the drain hole 21, thereby closing the drain hole 21 and preventing any gas or liquid from passing through.

[0026] On the contrary, when the solenoid valve assembly 3 is energized, the electromagnetic force generated by the coil will overcome the elastic force of the resetting elastic member 33, causing the push rod 32 to retract upward. This action causes the seal 34 to disengage from the drain hole 21, thereby opening the drain hole 21 and allowing the gas or liquid inside the appliance to be discharged freely.

[0027] More specifically, a power supply assembly for supplying power to the electrical main body 1 is provided in the electrical main body 1. In order to achieve higher efficiency and safety, the solenoid valve assembly 3 is electrically connected to the power supply assembly, which means that the working state of the solenoid valve assembly 3 is directly controlled by the power supply state of the electrical main body 1. Specifically, when the electrical main body 1 is powered on, the power supply assembly not only supplies power to the internal electronic components, but also provides the necessary power to the solenoid valve assembly 3. This design ensures that when the electrical main body 1 is in the working state, the solenoid valve assembly 3 is also in the powered state, and can open or close the drain hole 21 as needed.

[0028] This electrical connection configuration not only simplifies the circuit design of the appliance, but also enhances the functional integration and operational convenience of the appliance, and is more intelligent. Through direct electrical connection with the power supply assembly, the solenoid valve assembly 3 can seamlessly and automatically switch its working mode according to the working state of the appliance body 1. This automated function allows the solenoid valve assembly 3 to automatically open the drain hole 21 to discharge gas or liquid when the appliance is started, and automatically close the drain hole 21 when the appliance is turned off or the power is disconnected to prevent the intrusion of external moisture or impurities.

[0029] More specifically, the sealing member 34 is preferably a sealing rubber plug, which is mainly composed of two parts: one part is a cylindrical plug head 341 , and the other part is an annular sealing step 342 arranged on the side of the plug head 341 .

[0030] The columnar plug 341 is usually cylindrical, and its size and shape can closely match the inner diameter of the drain hole 21 to ensure tight fit and fit during sealing. In addition, the plug 341 is usually made of a material that is resistant to high temperatures, corrosion, and has a certain elasticity, such as silicone, so that it can form a good seal when inserted into the drain hole 21, and it is easy to pop out of the drain hole 21 when the power is off, thereby achieving rapid sealing and opening.

[0031] In order to enhance the sealing effect, an annular sealing step 342 is designed on the side of the plug 341. This annular step structure increases the surface area in contact with the drain hole 21, thereby improving the sealing stability and air tightness. When the seal 34 is inserted into the drain hole 21, the sealing step 342 can form multiple points of contact with the inner wall of the drain hole, which not only improves the sealing effect, but also prevents the seal 34 from shifting in a high temperature or vibration working environment.

[0032] Furthermore, the design of the drain hole 21 is also very unique, it is a bell-shaped structure that gradually decreases from the inside to the outside. This design enables the drain hole 21 to form a tighter seal at the edge of the contact seal 34, making the seal 34 easy to insert but difficult to accidentally fall off, thereby effectively preventing the reverse penetration of foreign substances without affecting the discharge of gas and liquid.

Claims

1. A household appliance with a water-washable and water-proof structure, characterized in that: The invention comprises an electrical appliance body (1), wherein a bottom cover assembly (2) is provided at the lower end of the electrical appliance body (1), a drainage hole (21) is provided on the bottom cover assembly (2) for connecting the interior of the electrical appliance body (1) with the outside and for draining water or ventilating, and an electromagnetic valve assembly (3) for opening and closing the drainage hole (21) is provided between the electrical appliance body (1) and the bottom cover assembly (2).

2. A household appliance with a water-washable and water-proof structure according to claim 1, characterized in that: The solenoid valve assembly (3) comprises a valve body (31) containing a coil, the valve body (31) is provided with a liftable push rod (32) and a reset elastic member (33) for elastically pressing the push rod (32) downward, and a sealing member (34) is provided at the lower end of the push rod (32); when the solenoid valve assembly (3) is powered off, the push rod (32) extends downward, and the sealing member (34) is inserted into the drain hole (21) to close the drain hole (21); when the solenoid valve assembly (3) is powered on, the push rod (32) retracts upward, and the sealing member (34) is separated from the drain hole (21) to open the drain hole (21).

3. A household appliance with a water-washable and water-proof structure according to claim 1 or 2, characterized in that: The electrical appliance body (1) is provided with a power supply component for supplying power thereto, the solenoid valve component (3) is electrically connected to the power supply component, and when the electrical appliance body (1) is powered on, the solenoid valve component (3) is also powered on.

4. A household appliance with a water-washable and water-proof structure according to claim 2, characterized in that: The sealing member (34) is a sealing rubber plug and comprises a columnar plug head (341) and an annular sealing step (342) arranged on the side of the plug head (341).

5. The household appliance with a water-washable and water-proof structure according to claim 1, characterized in that: The drainage hole (21) is in the shape of a trumpet mouth that gradually narrows from the inside to the outside.

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