Waterproof membrane and panel assembly

Abstract

The waterproof membrane comprises a shell, a membrane body and a waterproof layer, the surface of the shell is provided with a waterproof groove, the waterproof groove surrounds the shell by a circle in the circumferential direction, the side wall of the waterproof groove is further provided with a notch, and the notch is communicated with the waterproof groove. The diaphragm body is connected to the shell, and the diaphragm body is completely attached to the shell in a covering mode. The waterproof groove is formed in the shell, the waterproof layer is arranged in the waterproof groove and located between the shell and the membrane body, the waterproof layer is formed through in-membrane injection molding through the notch, and the waterproof layer is tightly attached to the waterproof groove and the membrane body.

Description

Technical Field

[0001] The utility model relates to the technical field of home appliance control panels, in particular to a waterproof diaphragm and a panel assembly. Background Art

[0002] Traditional home appliance control panels mostly adopt a diaphragm structure, which has a simple structure but limited waterproof performance. During actual use, especially in humid environments such as kitchens and bathrooms, moisture is likely to penetrate into the interior of the diaphragm, causing a short circuit in the circuit, which not only affects the normal use of the product but also may pose a safety hazard. Therefore, improving the waterproof performance of the diaphragm panel has become an urgent problem to be solved. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a waterproof diaphragm, which can significantly improve the waterproof performance of the diaphragm and ensure the stable operation of home appliance products in various use environments.

[0004] The utility model also provides a panel assembly with the above waterproof diaphragm

[0005] The waterproof diaphragm according to the first aspect embodiment of the utility model includes a housing, a diaphragm body, and a waterproof layer. A waterproof groove is provided on the surface of the housing, and the waterproof groove is arranged in a circle around the circumference of the housing. A notch is also provided on the side wall of the waterproof groove, and the notch communicates with the waterproof groove. The diaphragm body is connected to the housing, and the diaphragm body completely covers the housing. The waterproof layer is arranged in the waterproof groove and is located between the housing and the diaphragm body. The waterproof layer is formed by in-mold injection through the notch, and the waterproof layer is closely attached to the waterproof groove and the diaphragm body.

[0006] The waterproof diaphragm according to the embodiment of the utility model has at least the following beneficial effects: By providing a waterproof groove that surrounds the housing on the surface and filling it with a waterproof layer, an effective waterproof barrier is formed, which effectively prevents moisture from penetrating into the interior of the diaphragm, greatly reducing the short-circuit risk caused by moisture intrusion. It should be emphasized that compared with the two methods of filling resin, waterproof glue and other materials after the diaphragm body and the housing are fitted together, or directly integrally injection molding the diaphragm body and the housing, the former has general waterproof performance, and the latter is prone to bulging and has a high defective product rate. However, the waterproof layer proposed by the utility model is formed by in-mold injection through the notch and is closely attached to the waterproof groove and the diaphragm body, which not only enhances the structural stability but also further improves the waterproof effect, ensuring the reliability of long-term use, and does not require secondary processing, improving production efficiency. At the same time, due to the close combination of the waterproof layer and the diaphragm body, the maintenance difficulty and cost are reduced.

[0007] According to some embodiments of the present utility model, there are 4 notches provided, and the 4 notches are equidistant and evenly arranged along the circumferential direction of the housing.

[0008] According to some embodiments of the present utility model, a number of through holes are provided in the waterproof groove, and a part of the waterproof layer extends into the through holes to reinforce the waterproof layer and the housing.

[0009] According to some embodiments of the present utility model, a fusion adhesive is provided on one surface of the diaphragm body facing the housing, and the fusion adhesive is arranged in a circle along the circumferential direction of the diaphragm body and can completely cover the waterproof groove to be closely attached to the waterproof layer.

[0010] According to some embodiments of the present utility model, a fitting adhesive is further provided on one surface of the diaphragm body facing the housing, and the fitting adhesive is arranged inside the fusion adhesive to make the housing and the diaphragm body fit together.

[0011] According to some embodiments of the present utility model, the housing is in a disc shape, the diaphragm body is correspondingly in a disc shape, the waterproof groove is an annular groove and is arranged near the edge of the housing.

[0012] According to some embodiments of the present utility model, the diaphragm body is provided with a plurality of key parts, and a display part is further provided at the center of the diaphragm body, and the plurality of key parts are evenly arranged around the display part.

[0013] According to some embodiments of the present utility model, the housing is provided with a light-transmitting groove, the light-transmitting groove corresponds to the position of the display part, the housing is provided with a plurality of clearance through holes, the plurality of clearance through holes are arranged around the light-transmitting groove, and each clearance through hole corresponds to the position of each key part one by one.

[0014] According to some embodiments of the present utility model, the diaphragm body is provided with a positioning through hole, the housing is correspondingly provided with a positioning bump, and a part of the positioning bump extends into the positioning through hole to positionally connect the diaphragm body and the housing.

[0015] The panel assembly according to the second aspect embodiment of the present utility model includes the waterproof diaphragm as described in any one of the above.

[0016] The panel assembly according to the embodiment of the present utility model has at least the following beneficial effects: This panel assembly can be widely applied to various household electrical appliances, such as washing machines, electric water heaters, microwave ovens, etc. By integrating the waterproof diaphragm with other components (such as circuit boards, control chips, etc.) to form a complete control panel assembly, the waterproof performance and use safety of household electrical appliances are greatly improved.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments, where:

[0019] Figure 1 is an exploded schematic view of the waterproof diaphragm according to an embodiment of the present utility model.

[0020] Reference numerals: housing 100; waterproof groove 110; through hole 111; notch 120; light-transmitting groove 130; clearance through hole 140; positioning bump 150; diaphragm body 200; display portion 210; key portion 220; positioning through hole 230; waterproof layer 300. Detailed Description of the Embodiment

[0021] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0023] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is two or more, "greater than", "less than", "exceeding", etc. are understood not to include the present number, and "above", "below", "within", etc. are understood to include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0024] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. shall be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution. In the description of the present utility model, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0025] Most traditional household appliance control panels adopt a diaphragm structure, which has a simple structure but limited waterproof performance. During actual use, especially in humid environments such as kitchens and bathrooms, moisture is likely to penetrate into the interior of the diaphragm, resulting in a short circuit in the circuit, which not only affects the normal use of the product but also may pose a safety hazard. Therefore, improving the waterproof performance of the diaphragm panel has become an urgent problem to be solved.

[0026] For this reason, with reference to Figure 1 , the present utility model provides a waterproof diaphragm, which includes a housing 100, a diaphragm body 200, and a waterproof layer 300. A waterproof groove 110 is provided on the surface of the housing 100, and the waterproof groove 110 is arranged to surround the circumference of the housing 100. A notch 120 is further provided on the side wall of the waterproof groove 110, and the notch 120 communicates with the waterproof groove 110. The diaphragm body 200 is connected to the housing 100, and the diaphragm body 200 completely covers the housing 100. The waterproof layer 300 is provided in the waterproof groove 110 and is located between the housing 100 and the diaphragm body 200. The waterproof layer 300 is formed by in-mold injection through the notch 120, and the waterproof layer 300 is closely attached to the waterproof groove 110 and the diaphragm body 200.

[0027] Specifically, the housing 100 with the waterproof groove 110 is prepared by an injection molding process. The waterproof groove 110 surrounds the housing 100 in a circumferential direction, and the groove depth and width are set according to actual needs to ensure sufficient waterproof effect. A number of notches 120 are provided on the side wall of the waterproof groove 110, and the size and position of the notches 120 need to ensure that the waterproof layer 300 can be smoothly injected and evenly distributed. The pre-prepared diaphragm body 200 is connected to the housing 100 by means of bonding or hot pressing, etc., to ensure that the diaphragm body 200 completely covers the surface of the housing 100 without gaps or bubbles. Then, the waterproof layer 300 is formed by in-mold injection molding through the notches 120, ensuring that the waterproof layer 300 evenly fills the waterproof groove 110 and closely adheres to the housing 100 and the diaphragm body 200. After the waterproof material is cured, a strong waterproof barrier is formed. It should be noted that the waterproof layer 300 can be made of materials with good waterproof performance such as polyurethane and epoxy resin.

[0028] It can be understood that by providing a circumferential waterproof groove 110 on the surface of the housing 100 and filling it with the waterproof layer 300, an effective waterproof barrier is formed, which effectively prevents moisture from penetrating into the diaphragm interior and greatly reduces the short-circuit risk caused by moisture intrusion. It should be emphasized that compared with the two methods of filling resin, waterproof glue and other materials by secondary processing after the diaphragm body 200 is attached to the housing 100, or directly integrally injection molding the diaphragm body 200 and the housing 100, the former has general waterproof performance, and the latter is prone to bulging and has a high defective rate. The waterproof layer 300 proposed by the present utility model is formed by in-mold injection molding through the notches 120, and closely adheres to the waterproof groove 110 and the diaphragm body 200, which not only enhances the structural stability, but also further improves the waterproof effect, ensures the reliability of long-term use, and does not require secondary processing, improving production efficiency. At the same time, due to the close combination of the waterproof layer 300 and the diaphragm body 200, the maintenance difficulty and cost are reduced.

[0029] Specifically, referring to Figure 1 , in some embodiments, the housing 100 is provided with 4 notches 120, and the 4 notches 120 on the waterproof groove 110 are configured to be evenly distributed in the circumferential direction of the housing 100, and the angular intervals between each notch 120 are equal, for example, a notch 120 is provided every 90 degrees. This layout not only ensures that the waterproof layer 300 can flow evenly and fill the entire waterproof groove 110 during the injection molding process, but also enhances the structural strength of the waterproof layer 300, preventing rupture caused by local stress concentration. By equidistantly and evenly arranging the notches 120, the bonding force between the waterproof layer 300 and the waterproof groove 110 is improved, making the waterproof layer 300 more firmly attached to the housing 100, further enhancing the waterproof performance. At the same time, this design also simplifies the production process and improves production efficiency.

[0030] Furthermore, a number of through holes 111 are provided in the waterproof groove 110, and these through holes 111 are arranged along the circumferential direction or a specific path of the waterproof groove 110. During the injection molding process of the waterproof layer 300, the material of the waterproof layer 300 will partially extend into these through holes 111 to form a mechanical locking structure. This not only increases the contact area between the waterproof layer 300 and the housing 100, but also physically strengthens the waterproof layer 300 to prevent it from falling off or shifting during use.

[0031] It should be noted that on one side surface of the diaphragm body 200 facing the housing 100, a fusion adhesive and a fitting adhesive are respectively provided. The fusion adhesive is arranged around the circumferential direction of the diaphragm body 200 and completely covers the waterproof groove 110 to ensure a tight fit with the waterproof layer 300. The fitting adhesive is arranged inside the fusion adhesive and is used to directly bond the housing 100 and the diaphragm body 200. These two adhesives can be different types of materials, such as hot melt adhesives, pressure-sensitive adhesives, etc., and are selected according to specific requirements. It should be emphasized that the role of the fusion adhesive is that when the waterproof layer 300 is formed by in-mold injection of the housing 100 and the diaphragm body 200, in the case of high temperature, the fusion adhesive fuses with the waterproof layer 300 to achieve a tight fit between the housing 100 and the diaphragm body 200, thereby further enhancing the waterproof effect.

[0032] Refer to Figure 1 , in some embodiments, the housing 100 is in a disc shape, the diaphragm body 200 is correspondingly in a disc shape, the waterproof groove 110 is an annular groove and is arranged near the edge of the housing 100. Specifically, the diaphragm body 200 is provided with a plurality of key portions 220, and a display portion 210 is also provided at the center of the diaphragm body 200. The plurality of key portions 220 are evenly arranged around the display portion 210. Furthermore, the housing 100 is provided with a light-transmitting groove 130, the light-transmitting groove 130 corresponds to the position of the display portion 210, the housing 100 is provided with a plurality of clearance through holes 140, the plurality of clearance through holes 140 are arranged around the light-transmitting groove 130, and each clearance through hole 140 corresponds to the position of each key portion 220 one by one. The disc shape meets the appearance requirements of most household appliance control panels, and the layout of the key portions 220 and the display portion 210 facilitates user operation. The design of the light-transmitting groove 130 and the clearance through holes 140 ensures the clarity and sensitivity of the keys and the display.

[0033] It should be noted that the waterproof diaphragm proposed by the present utility model can also be in other geometric shapes such as rectangular, triangular, etc., and is not limited to this here.

[0034] Refer to Figure 1, the diaphragm body 200 is provided with a positioning through hole 230, and the housing 100 is correspondingly provided with a positioning bump 150. The positioning bump 150 partially extends into the positioning through hole 230 to positionally connect the diaphragm body 200 and the housing 100. The precise positioning connection between the diaphragm body 200 and the housing 100 is achieved through the positioning through hole 230 and the positioning bump 150, which simplifies the assembly process and improves production efficiency and product quality.

[0035] Furthermore, the present utility model also proposes a panel assembly including the waterproof diaphragm described in any one of the above. Such a panel assembly can be widely applied to various household electrical appliances, such as washing machines, electric water heaters, microwave ovens, etc. By integrating the waterproof diaphragm with other components (such as circuit boards, control chips, etc.) to form a complete control panel assembly, the waterproof performance and usage safety of household electrical appliances are greatly improved.

[0036] The embodiments of the present utility model have been described in detail above with reference to the drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the knowledge scope of those of ordinary skill in the art to which the present utility model pertains.

Claims

1. A waterproof membrane, characterized in that: include: The shell body has a waterproof groove on its surface, the waterproof groove is arranged around the circumference of the shell body, and a notch is also arranged on the side wall of the waterproof groove, the notch is connected to the waterproof groove; A diaphragm body is connected to the housing, and the diaphragm body completely covers the housing; The waterproof layer is arranged in the waterproof groove and is located between the shell and the diaphragm body. The waterproof layer is formed by intra-membrane injection molding through the notch. The waterproof layer is tightly fitted to the waterproof groove and the diaphragm body.

2. The waterproof membrane according to claim 1, characterized in that: There are four notches, and the four notches are equidistant and evenly arranged along the circumference of the shell.

3. The waterproof membrane according to claim 1, characterized in that: A plurality of through holes are arranged in the waterproof groove, and the waterproof layer partially extends into the through holes to reinforce the waterproof layer and the shell.

4. The waterproof membrane according to claim 1, characterized in that: A fusion adhesive is arranged on one side surface of the membrane body facing the shell. The fusion adhesive is arranged around the circumference of the membrane body and can completely cover the waterproof groove to fit tightly with the waterproof layer.

5. The waterproof membrane according to claim 4, characterized in that: A bonding adhesive is also provided on one side of the membrane body facing the shell, and the bonding adhesive is provided on the inner side of the fusion adhesive so as to make the shell and the membrane body bonded.

6. The waterproof membrane according to claim 1, characterized in that: The shell is in the shape of a disk, the diaphragm body is in the shape of a disk correspondingly, and the waterproof groove is an annular groove and is arranged close to the edge of the shell.

7. The waterproof membrane according to claim 1, characterized in that: The membrane body is provided with a plurality of button parts, and a display part is also provided at the center of the membrane body, and the plurality of button parts are evenly arranged around the display part.

8. The waterproof membrane according to claim 7, characterized in that: The shell is provided with a light-transmitting groove, which corresponds to the position of the display part. The shell is provided with a plurality of air-avoiding through holes, which are arranged around the light-transmitting groove, and each of the air-avoiding through holes corresponds to the position of each of the button parts one by one.

9. The waterproof membrane according to claim 8, characterized in that: The diaphragm body is provided with a positioning through hole, and the shell is correspondingly provided with a positioning convex point, and the positioning convex point partially extends into the positioning through hole to position and connect the diaphragm body and the shell.

10. A panel assembly, characterized in that: The invention comprises the waterproof membrane according to any one of claims 1 to 9.

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