Shell, household appliance and manufacturing method of shell

Abstract

The invention discloses a shell, a household appliance and a manufacturing method of the shell, and relates to the technical field of electric appliances. The invention relates to a high-temperature-resistant ceramic tile, which comprises a body and a plurality of bulges, the bulges are distributed on the body at intervals, the height of the bulges extending outwards along the surface of the body is between 0.5 micrometer and 20 micrometers, a groove is formed between two bulges at adjacent positions, and the bulges and the grooves are smoothly connected with each other. The high-temperature-resistant ceramic tile has the advantages that the high-temperature-resistant ceramic tile can be used for manufacturing high-temperature-resistant ceramic tiles, and the high-temperature-resistant ceramic tile can be used for manufacturing high-temperature-resistant ceramic tiles. Therefore, the protrusions and the grooves are matched to form the rough surface distributed on the body, when the hand of a user makes contact with the rough surface with the roughness smaller than that of the skin surface, the touch feeling of the user can be improved, for example, the soft and fine touch hand feeling like the skin is provided for the user, meanwhile, the friction force of the hand holding part can be enhanced, and the touch feeling of the user is improved. And the electric appliance is prevented from slipping during use, so that the use safety of the electric appliance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliances, and in particular to a housing, a household appliance and a method for manufacturing the housing. Background Art

[0002] In the field of household consumer goods, consumers have increasingly higher requirements for the appearance of products. Textured appearance is increasingly used on the shells of some household appliances with high touch frequencies, such as handles of electric kettles and handles of electric fans, due to its many advantages such as gorgeous appearance and rich changes.

[0003] However, the current shell texture is generally obtained by spraying or applying a film on the shell surface, and its smoothness is relatively high. When the user touches it frequently, the friction between the skin and the contact surface is small, thereby reducing the user's touch and having poor anti-slip performance, which is not conducive to improving the user's comfort. Summary of the invention

[0004] In view of the problem that the positions of the existing electrical appliance housing that are frequently touched by users are relatively smooth, have poor anti-slip performance and reduce the user's tactile feeling, the present invention is proposed to provide a housing, a household appliance and a method for manufacturing the housing that overcome the above problems or at least partially solve the above problems.

[0005] Based on the first aspect of the present invention, a shell is provided, which includes a main body and a plurality of protrusions, wherein the plurality of protrusions are spaced apart on the main body, wherein a height of the protrusions extending outward along the surface of the main body is between 0.5 microns and 20 microns, a groove is formed between two protrusions at adjacent positions, and the protrusions are smoothly connected to the grooves.

[0006] According to an optional invention, the protrusions and grooves are continuously arranged on the body to form a rough surface that completely covers the surface of the body.

[0007] An optional invention content is that the top of the protrusion away from the main body is an arc portion.

[0008] An optional invention content is that the diameter of the arc portion is set between 1 and 5 microns.

[0009] In an optional invention, the width of a groove formed between two protrusions at adjacent positions is set between 10 microns and 500 microns.

[0010] An optional invention content is that the cross-sectional shape formed by the cooperation of the plurality of protrusions and the grooves is a wave shape.

[0011] According to an optional invention, the body is made of one of the following materials: acrylonitrile-butadiene-styrene copolymer material and polypropylene material.

[0012] According to an optional invention, the protrusion is made of one of the following materials: acrylonitrile-butadiene-styrene copolymer material and polypropylene material.

[0013] An optional invention content is that the main body and the protrusion are an integrated structure.

[0014] Based on the second aspect of the present invention, a household appliance is further provided, the household appliance comprising the housing described in any one of the above invention contents.

[0015] Based on the third aspect of the present invention, a method for manufacturing a housing is also provided, the manufacturing method comprising:

[0016] Providing a mold and a molten material, wherein the surface of the mold is formed into a rough inner surface by laser irradiation;

[0017] injecting the molten material into the mold;

[0018] The mold is cooled to obtain a solidified shell, wherein the shell includes a main body and a plurality of protrusions, the plurality of protrusions are spaced apart on the main body, the height of the protrusions extending outward along the surface of the main body is between 0.5 microns and 20 microns, a groove is formed between two protrusions at adjacent positions, and the protrusions are smoothly connected to the grooves.

[0019] In an optional invention, the manufacturing method further comprises:

[0020] Add solid material into an injection molding machine, set the injection molding temperature of the injection molding machine between 200 degrees Celsius and 250 degrees Celsius, and set the injection molding pressure between 50 MPa and 100 MPa to obtain a molten material, wherein the solid material is one of an acrylonitrile-butadiene-styrene copolymer material and a polypropylene material.

[0021] Compared with the prior art, the present invention comprises a body and a plurality of protrusions, wherein the plurality of protrusions are spaced apart on the body, wherein the height of the protrusions extending outward along the surface of the body is between 0.5 micrometers and 20 micrometers, a groove is formed between two protrusions at adjacent positions, and the protrusions and the grooves are smoothly connected. Thus, the protrusions and the grooves cooperate to form a rough surface distributed on the body, and when the user's hand contacts the rough surface with a roughness less than that of the skin surface, the user's sense of touch can be improved, and at the same time, the friction of the hand-gripping part can be enhanced to prevent slipping when using the electrical appliance, thereby improving the safety of the electrical appliance.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limitations of the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings.

[0024] In the attached picture:

[0025] Figure 1 is a schematic diagram of a cross-sectional structure of a housing provided by an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 A schematic diagram of the structure enlargement at the center A;

[0027] Figure 3 is a schematic diagram of a cross-sectional structure of another housing provided by an embodiment of the present invention;

[0028] Figure 4 is a schematic diagram of a three-dimensional structure of a housing provided by an embodiment of the present invention;

[0029] Figure 5 It is a schematic flow chart of the steps of a method for manufacturing a housing provided by an embodiment of the present invention;

[0030] Figure 6 is a schematic flow chart of steps of another method for manufacturing a housing provided by an embodiment of the present invention;

[0031] Figure numerals: 1, main body; 101, first surface; 2, protrusion; 201, arc portion; 3, groove. DETAILED DESCRIPTION

[0032] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0033] In the field of household consumer goods, consumers have increasingly higher requirements for the appearance of products. Textured appearance is increasingly used on the shells of some household appliances with high touch frequencies, such as handles of electric kettles and handles of electric fans, due to its many advantages such as gorgeous appearance and rich changes.

[0034] However, the current shell texture is generally obtained by spraying or applying a film on the shell surface, and its smoothness is relatively high. When the user touches it frequently, the friction between the skin and the contact surface is small, thereby reducing the user's touch and having poor anti-slip performance, which is not conducive to improving the user's comfort.

[0035] Based on the above technical problems, an embodiment of the present invention is proposed. The embodiment of the present invention may include a body 1 and a plurality of protrusions 2, wherein the plurality of protrusions 2 are spaced apart on the body 1, wherein the height of the protrusions 2 extending outward along the surface of the body 1 is between 0.5 microns and 20 microns, a groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected. Thus, the protrusions 2 and the grooves 3 cooperate to form a rough surface distributed on the body 1, and when the user's hand contacts the rough surface with a roughness less than that of the skin surface, the user's sense of touch can be improved, and at the same time, the friction of the hand-gripping part can be enhanced to prevent slipping when using the electrical appliance, thereby improving the safety of the electrical appliance.

[0036] Reference Figure 1-4 An embodiment of the present invention provides a shell, which may include a main body 1 and a plurality of protrusions 2, wherein the plurality of protrusions 2 are spaced apart on the main body 1, wherein the height of the protrusions 2 extending outward along the surface of the main body 1 is between 0.5 microns and 20 microns, a groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected.

[0037] In an embodiment of the present invention, the shell may include a body 1 and a plurality of protrusions 2, wherein the body 1 serves as a structural support for the plurality of protrusions 2, and the plurality of protrusions 2 are spaced apart on the body 1. For example, the spaced distribution may include uniform distribution, and the uniform distribution may be understood as the regular distribution of the plurality of protrusions 2 on the body 1. For example, when the cross-sectional shape of the body 1 is rectangular, the spaced distribution may be understood as the spaced distribution of the plurality of protrusions 2 along the length direction of the body 1, or the spaced distribution of the plurality of protrusions 2 along the width direction of the body 1. For another example, when the cross-sectional shape of the body 1 is circular, the spaced distribution may be understood as the spaced distribution of the plurality of protrusions 2 along the radial direction of the body 1, or the spaced distribution of the plurality of protrusions 2 around the center of the body 1 at an angle.

[0038] Reference Figure 1 and Figure 2 As shown, the height H of the protrusion 2 extending outward from the first surface 101 of the body 1 is set between 0.5 microns and 20 microns, that is, the heights of the plurality of protrusions 2 extending outward from the first surface 101 of the body 1 can be different, and only need to be distributed between 0.5 microns and 20 microns. For example, the height H of the first protrusion 2 extending outward from the body 1 is 0.5 microns, the height H of the second protrusion 2 extending outward from the body 1 is 5 microns, the height H of the third protrusion 2 extending outward from the body 1 is 10 microns, the height H of the fourth protrusion 2 extending outward from the body 1 is 20 microns, etc. Those skilled in the art can specifically determine the extension height of each protrusion 2 according to the limited range of the above-mentioned extension height, and no excessive restrictions are made here.

[0039] A groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusion 2 and the groove 3 are smoothly connected, wherein the smooth connection can be understood as the area of ​​the protrusion 2 close to the groove 3 is an arc, and the area of ​​the groove 3 close to the protrusion 2 is also an arc, so that the surfaces of the two arcs are tangent at the connection between the protrusion 2 and the groove 3. Thus, the areas where the multiple protrusions 2 are located cooperate with the multiple grooves 3 to form a rough surface covering the surface of the body 1. And through the extension height limit of the protrusion 2, the roughness of the rough surface formed is less than the roughness of the user's hand skin, thereby forming a skin-friendly touch. When the user's hand touches the shell, it can feel a soft and delicate touch like skin, and can increase the friction between the hand and the shell to prevent the user from slipping when grasping the shell. And it can further increase the safety of the user when using the household appliance including the shell.

[0040] In addition, the rough surface can also form a three-dimensional microscopic structure, thereby improving the appearance texture of the shell, integrating aesthetics and good touch feel, which can improve the user's experience and is conducive to increasing the product applicability of household appliances.

[0041] An optional embodiment of the invention, referring to Figure 1 , Figure 3 as well as Figure 4 As shown, the shell may include a body 1 and a plurality of protrusions 2, wherein the plurality of protrusions 2 are spaced apart on the body 1, wherein the height of the protrusions 2 extending outward along the surface of the body 1 is between 0.5 micrometers and 20 micrometers, a groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected. Furthermore, the protrusions 2 and the grooves 3 are continuously arranged on the body 1 to form a rough surface that completely covers the surface of the body 1.

[0042] In an embodiment of the present invention, the shell may include a body 1 and a plurality of protrusions 2, wherein the body 1 serves as a structural support for the plurality of protrusions 2, and the plurality of protrusions 2 are spaced apart on the body 1. For example, the spaced distribution may include uniform distribution, and the uniform distribution may be understood as the regular distribution of the plurality of protrusions 2 on the body 1. For example, when the cross-sectional shape of the body 1 is rectangular, the spaced distribution may be understood as the spaced distribution of the plurality of protrusions 2 along the length direction of the body 1, or the spaced distribution of the plurality of protrusions 2 along the width direction of the body 1. For another example, when the cross-sectional shape of the body 1 is circular, the spaced distribution may be understood as the spaced distribution of the plurality of protrusions 2 along the radial direction of the body 1, or the spaced distribution of the plurality of protrusions 2 around the center of the body 1 at an angle.

[0043] Reference Figure 1 and Figure 2 As shown, the height H of the protrusion 2 extending outward from the body 1 is set between 0.5 microns and 20 microns, that is, the heights of the multiple protrusions 2 extending outward from the surface of the body 1 can be different, and only need to be distributed between 0.5 microns and 20 microns. For example, the height H of the first protrusion 2 extending outward from the body 1 is 0.5 microns, the height H of the second protrusion 2 extending outward from the body 1 is 5 microns, the height H of the third protrusion 2 extending outward from the body 1 is 10 microns, the height H of the fourth protrusion 2 extending outward from the body 1 is 20 microns, etc. Those skilled in the art can specifically determine the extension height of each protrusion 2 according to the limited range of the above-mentioned extension height, and no excessive restrictions are made here.

[0044] A groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected, wherein the smooth connection can be understood as the area of ​​the protrusion 2 close to the groove 3 is an arc portion, and the area of ​​the groove 3 close to the protrusion 2 is also an arc portion, so that the surfaces of the two arc portions are tangent at the connection between the protrusion 2 and the groove 3. As a result, the areas where the multiple protrusions 2 are located cooperate with the multiple grooves 3 to form a rough surface covering the surface of the body 1. The protrusions 2 and the grooves 3 cooperate and can be continuously arranged on the surface of the body 1. In other words, the multiple protrusions 2 and the grooves 3 can cooperate with each other and be densely arranged on the surface of the body 1 until the surface of the body 1 is completely covered, thereby forming a rough surface that completely covers the surface of the body 1.

[0045] By limiting the extension height of the protrusion 2, the roughness of the rough surface is less than the roughness of the user's hand skin, thereby forming a skin-friendly touch. When the user's hand touches any area on the surface of the shell, they can feel a soft and delicate touch, and the friction between the hand and the shell can be increased to prevent the user from slipping when grasping the shell. It can also further increase the safety of the user when using the household appliance including the shell.

[0046] In an optional embodiment of the invention, the top of the protrusion 2 away from the main body 1 is an arc portion 201.

[0047] In the embodiment of the present invention, the top of the protrusion 2 away from the body 1 is a circular arc portion 201. The setting of the circular arc portion 201 makes the top of the protrusion 2 have a higher smoothness, and the protrusion 2 is the area that directly contacts the user's hand. In other words, while the protrusion 2 and the groove 3 form a rough surface with a certain roughness, the circular arc portion 201 also reduces the sharpness of the protrusion 2 when it contacts the hand, that is, the circular arc portion 201 can increase the contact area with the hand and can evenly disperse the pressure applied by the user's hand to the protrusion 2, thereby further improving the comfort and uniformity of the user's hand touch.

[0048] In an optional embodiment of the invention, the diameter of the arc portion 201 is set between 1 and 5 microns.

[0049] In the embodiment of the present invention, referring to Figure 1 and Figure 2 As shown, the diameter R of the arc portion 201 is set between 1 and 5 microns. That is to say, the diameters of the arc portions 201 corresponding to the plurality of protrusions 2 may be different, and only need to be distributed between 1 micron and 5 microns. For example, the diameter R of the arc portion 201 of the first protrusion 2 is 1 micron, the diameter R of the arc portion 201 of the second protrusion 2 is 2 microns, the diameter R of the arc portion 201 of the third protrusion 2 is 3 microns, the diameter R of the arc portion 201 of the fourth protrusion 2 is 4 microns, the diameter R of the arc portion 201 of the fifth protrusion 2 is 5 microns, etc. Those skilled in the art can specifically determine the diameter of the arc portion 201 of each protrusion 2 according to the diameter limit range of the arc portion 201, and no excessive restrictions are made here.

[0050] The diameter of the arc portion 201 is set between 1 micron and 5 microns, which can ensure that the plurality of protrusions 2 are arranged at intervals to form a certain roughness. If the diameter of the arc portion 201 is less than 1 micron, the diameter of the arc portion 201 of the protrusion 2 is too small, which increases the sharpness of the protrusion 2, thereby reducing the comfort of the user touching the rough surface. If the diameter of the arc portion 201 is greater than 5 microns, the diameter of the arc portion 201 of the protrusion 2 is too large, which increases the smoothness of the protrusion 2, thereby reducing the skin-friendly feeling of the user touching the rough surface.

[0051] An optional embodiment of the invention, referring to Figure 1 , Figure 2 as well as Figure 3 As shown, the shell includes a main body 1 and a plurality of protrusions 2, wherein the plurality of protrusions 2 are spaced apart on the main body 1, wherein the height of the protrusions 2 extending outward along the surface of the main body 1 is between 0.5 microns and 20 microns, a groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 are smoothly connected to the groove 3, and the width of the groove 3 formed between two protrusions 2 at adjacent positions is set between 10 microns and 500 microns.

[0052] In an embodiment of the present invention, the shell may include a body 1 and a plurality of protrusions 2, wherein the body 1 serves as a structural support for the plurality of protrusions 2, and the plurality of protrusions 2 are spaced apart on the body 1. For example, the spaced distribution may include uniform distribution, and the uniform distribution may be understood as the regular distribution of the plurality of protrusions 2 on the body 1. For example, when the cross-sectional shape of the body 1 is rectangular, the spaced distribution may be understood as the spaced distribution of the plurality of protrusions 2 along the length direction of the body 1, or the spaced distribution of the plurality of protrusions 2 along the width direction of the body 1. For another example, when the cross-sectional shape of the body 1 is circular, the spaced distribution may be understood as the spaced distribution of the plurality of protrusions 2 along the radial direction of the body 1, or the spaced distribution of the plurality of protrusions 2 around the center of the body 1 at an angle.

[0053] Reference Figure 1 and Figure 2As shown, the height H of the protrusion 2 extending outward from the body 1 is set between 0.5 microns and 20 microns, that is, the heights of the multiple protrusions 2 extending outward from the surface of the body 1 can be different, and only need to be distributed between 0.5 microns and 20 microns. For example, the height H of the first protrusion 2 extending outward from the body 1 is 0.5 microns, the height H of the second protrusion 2 extending outward from the body 1 is 5 microns, the height H of the third protrusion 2 extending outward from the body 1 is 10 microns, the height H of the fourth protrusion 2 extending outward from the body 1 is 20 microns, etc. Those skilled in the art can specifically determine the extension height of each protrusion 2 according to the limited range of the above-mentioned extension height, and no excessive restrictions are made here.

[0054] A groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected, wherein the smooth connection can be understood as the area of ​​the protrusion 2 close to the groove 3 is an arc portion, and the area of ​​the groove 3 close to the protrusion 2 is also an arc portion, so that the surfaces of the two arc portions are tangent at the connection between the protrusion 2 and the groove 3. As a result, the areas where the multiple protrusions 2 are located cooperate with the multiple grooves 3 to form a rough surface covering the surface of the body 1. The protrusions 2 and the grooves 3 cooperate and can be continuously arranged on the surface of the body 1. In other words, the multiple protrusions 2 and the grooves 3 can cooperate with each other and be densely arranged on the surface of the body 1 until the surface of the body 1 is completely covered, thereby forming a rough surface that completely covers the surface of the body 1.

[0055] Reference Figure 1 and Figure 2 As shown, the width D of the groove 3 formed between two protrusions 2 at adjacent positions is set between 10 microns and 500 microns, that is, the width of the groove 3 formed between two protrusions 2 at multiple groups of adjacent positions can be different, and only needs to be distributed between 10 microns and 500 microns. For example, the width of the groove 3 formed between the two protrusions 2 at the first group of adjacent positions is 10 microns, the width of the groove 3 formed between the two protrusions 2 at the second group of adjacent positions is 50 microns, the width of the groove 3 formed between the two protrusions 2 at the third group of adjacent positions is 100 microns, the width of the groove 3 formed between the two protrusions 2 at the fourth group of adjacent positions is 300 microns, and the width of the groove 3 formed between the two protrusions 2 at the fifth group of adjacent positions is 500 microns. Those skilled in the art can specifically determine the width of the groove 3 according to the width limit range of the groove 3 described above, and no excessive restrictions are made here.

[0056] By limiting the width of the groove 3 to between 10 microns and 500 microns, the distance between two adjacent protrusions 2 can be ensured to be appropriate, so that a rough surface with bumps and depressions that feels comfortable can be formed on the surface of the body 1. Since the width D of the groove 3 can be understood as the distance between the vertices of two protrusions 2 at adjacent positions, if the width of the groove 3 is less than 10 microns, the distance between the two protrusions 2 at adjacent positions is too small, and it is impossible to achieve a smooth connection between the arc portion 201 of the protrusion 2 and the protrusion 2 when the extension height is set within the range of 0.5 microns to 20 microns, thereby increasing the sharpness of the protrusion 2 and reducing the user's comfort. If the width of the groove 3 is greater than 500 microns, the distance between two adjacent protrusions 2 is too large, reducing the number of protrusions 2 in the same area on the shell surface, thereby reducing the skin-friendly touch of the rough surface.

[0057] By limiting the extension height of the protrusion 2, limiting the diameter of the arc portion 201, and limiting the width of the groove 3 formed between two protrusions 2 at adjacent positions, the roughness of the rough surface formed is less than the roughness of the user's hand skin, and has a skin-friendly rough surface. When the user's hand touches any area on the surface of the shell, they can feel a soft and delicate touch, and the friction between the hand and the shell can be increased to prevent the user from slipping when grasping the shell. And it can further increase the safety of the user when using the household appliance including the shell.

[0058] An optional embodiment of the invention, referring to Figure 1 , Figure 2 as well as Figure 3 As shown, the width of the groove 3 formed between two adjacent protrusions 2 is set between 10 micrometers and 500 micrometers. The cross-sectional shape formed by the cooperation of the plurality of protrusions 2 and the groove 3 is a wave shape.

[0059] In the embodiment of the present invention, by limiting the width of the groove 3 to between 10 microns and 500 microns, the distance between two adjacent protrusions 2 can be ensured to be appropriate, so that a rough surface with uneven surfaces and comfortable hand feel can be formed on the surface of the body 1. Since the width D of the groove 3 can be understood as the distance between the vertices of the two protrusions 2 at adjacent positions, if the width of the groove 3 is less than 10 microns, the distance between the two protrusions 2 at adjacent positions is too small, and it is impossible to achieve a smooth connection between the arc portion 201 of the protrusion 2 and the protrusion 2 when the extension height is set within the range of 0.5 microns to 20 microns, thereby increasing the sharpness of the protrusion 2 and reducing the user's comfort. If the width of the groove 3 is greater than 500 microns, the distance between the two adjacent protrusions 2 is too large, reducing the number of protrusions 2 in the same area on the shell surface, thereby reducing the skin-friendly touch of the rough surface.

[0060] The cross-sectional shape formed by the cooperation of the plurality of protrusions 2 and the grooves 3 is wavy, that is, the surface of the protrusion 2 away from the main body 1 is an arc-shaped surface, the groove wall of the groove 3 is also an arc-shaped surface, and the protrusion 2 is smoothly connected with the groove 3, thereby reducing the sharpness of the rough surface. While being convenient for the user to hold and not prone to slipping, it can also improve the comfort of the user's hand contact, thereby comprehensively improving the user's experience of the product and improving the product performance of the shell.

[0061] In an optional embodiment of the invention, the main body 1 is made of one of the following materials: acrylonitrile-butadiene-styrene copolymer material and polypropylene material.

[0062] In the embodiment of the present invention, acrylonitrile-butadiene-styrene copolymer material (ABS) is a synthetic resin made of a terpolymer composed of acrylonitrile, butadiene and styrene. It has good heat resistance and good wear resistance, and can be suitable for processing by blow molding, extrusion, injection molding and other processes, and has a wide range of applications. Polypropylene material (PP) is a semi-crystalline thermoplastic polymer made from propylene monomer through addition polymerization. It has good heat resistance, wear resistance and mechanical strength, and can also be suitable for processing by blow molding, extrusion, injection molding and other processes, and has a wide range of applications. Therefore, when the main body 1 is made of acrylonitrile-butadiene-styrene copolymer material and polypropylene material, the wear resistance of the main body 1 can be guaranteed, and the service life of the shell is improved.

[0063] In an optional embodiment of the invention, the protrusion 2 is made of one of the following materials: acrylonitrile-butadiene-styrene copolymer material and polypropylene material.

[0064] In the embodiment of the present invention, acrylonitrile-butadiene-styrene copolymer material (ABS) is a synthetic resin made of a terpolymer composed of acrylonitrile, butadiene and styrene. It has good heat resistance and good wear resistance, and can be applied to blow molding, extrusion, injection molding and other processes for processing, and has a wide range of applications. Polypropylene material (PP) is a semi-crystalline thermoplastic polymer made from propylene monomer through addition polymerization. It has good heat resistance, wear resistance and mechanical strength, and can also be applied to blow molding, extrusion, injection molding and other processes for processing, and has a wide range of applications. Therefore, when the protrusion 2 is made of acrylonitrile-butadiene-styrene copolymer material and polypropylene material, it can be ensured that the protrusion 2 has good wear resistance, and the roughness of the rough surface densely formed by the protrusion 2 is relatively uniform, so that the protrusion 2 will not break or break when the user's hand touches it frequently.

[0065] In an optional embodiment of the invention, the main body 1 and the protrusion 2 are an integrated structure.

[0066] In some embodiments, the body 1 and the protrusion 2 may be an integrated structure, for example, the body 1 and the protrusion 2 are both made of acrylonitrile-butadiene-styrene copolymer material. Alternatively, the body 1 and the protrusion 2 are both made of polypropylene material. As a preferred embodiment, the body 1 and the protrusion 2 may be obtained by injection molding.

[0067] In summary, the embodiment of the present invention discloses a shell, which may include a body 1 and a plurality of protrusions 2, wherein the plurality of protrusions 2 are spaced apart on the body 1, wherein the height of the protrusions 2 extending outward along the surface of the body 1 is between 0.5 microns and 20 microns, a groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected. Thus, the protrusions 2 and the grooves 3 cooperate to form a rough surface distributed on the body 1, and when the user's hand contacts the rough surface with a roughness less than that of the skin surface, the user's sense of touch can be improved, and at the same time, the friction of the hand-gripping part can be enhanced to prevent slipping when using the electrical appliance, thereby improving the safety of the electrical appliance.

[0068] An embodiment of the present invention further discloses a household appliance, which includes the housing described in any one of the above invention contents.

[0069] In the embodiment of the present invention, the household appliance may include but is not limited to: an electric kettle, an electric fan, and an electric rice cooker. Correspondingly, the shell can be used as a handle shell of the electric kettle. Alternatively, the shell can be used as a handle shell of the electric fan, or the shell can be used as a cover plate of an electric rice cooker. In other words, the shell can be used as a shell in some household appliances that can be frequently touched by users. The types of household appliances listed above are not intended to limit the types of household appliances in the embodiments of the present invention.

[0070] In other embodiments, the housing may also serve as an operating panel of a household appliance, or a housing for a knob, a button, etc., which is not limited herein.

[0071] In summary, the embodiment of the present invention discloses a household appliance, which may include a body 1 and a plurality of protrusions 2, wherein the plurality of protrusions 2 are spaced apart on the body 1, wherein the height of the protrusions 2 extending outward along the surface of the body 1 is between 0.5 micrometers and 20 micrometers, a groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected. Thus, the protrusions 2 and the grooves 3 cooperate to form a rough surface distributed on the body 1, and when the user's hand contacts the rough surface with a roughness less than that of the skin surface, the user's sense of touch can be improved, and at the same time, the friction of the hand-gripping part can be enhanced to prevent slipping when using the appliance, thereby improving the safety of the appliance.

[0072] Reference Figure 5 As shown, the embodiment of the present invention further discloses a method for manufacturing a housing, the manufacturing method comprising:

[0073] S501, providing a mold and a molten material, wherein the surface of the mold is formed into a rough inner surface by laser lithography.

[0074] S502, injecting the molten material into the mold.

[0075] In an embodiment of the present invention, the shell can be produced by an injection molding process. For example, a mold and a molten material to be molded can be provided in advance. The molten material can be understood as a material in a molten state. An inner surface of the mold is formed into a rough surface by laser. For example, referring to the above description of the shell, it can be seen that the rough surface of the inner surface of the mold is adapted to the rough surface shape of the shell, so that the shell can be processed by injecting the molten material into the mold.

[0076] In some embodiments, the mold can be made of a metal material with good hardness, heat resistance and wear resistance. For example, the mold can be made of tool steel material (such as model SKD11). For another example, the mold can be made of cemented carbide.

[0077] The rough surface on the mold can be obtained by using a laser process, such as femtosecond laser or ultrafast laser to process the surface of a plate-shaped mold. In other embodiments, the mold can be processed by combining metal etching and laser laser processes. For example, an initial rough inner surface is first formed by etching, and then a laser is used to perform secondary processing on the initial rough inner surface, such as sharp areas, so that the subsequent protrusion 2 of the shell is more rounded.

[0078] S503, cooling the mold to obtain a solidified shell, wherein the shell includes a main body 1 and a plurality of protrusions 2, the plurality of protrusions 2 are spaced apart on the main body 1, the height of the protrusions 2 extending outward along the surface of the main body 1 is between 0.5 microns and 20 microns, a groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected.

[0079] In an embodiment of the present invention, after the molten material is injected into the mold, the mold can be cooled so that the molten material is solidified and formed to obtain a shell with a rough surface. At this time, the solidified shell is taken out of the mold to obtain a shell of a final product. Wherein, the shell may include a body 1 and a plurality of protrusions 2, the body 1 serves as a structural support for the plurality of protrusions 2, and the plurality of protrusions 2 are distributed at intervals on the body 1. For example, the interval distribution may include uniform distribution, and the uniform distribution may be understood as the regular distribution of the plurality of protrusions 2 on the body 1. For example, in the case where the cross-sectional shape of the body 1 is rectangular, the interval distribution may be understood as the interval distribution of the plurality of protrusions 2 along the length direction of the body 1, or the interval distribution of the plurality of protrusions 2 along the width direction of the body 1. For another example, in the case where the cross-sectional shape of the body 1 is circular, the interval distribution may be understood as the interval distribution of the plurality of protrusions 2 along the radial direction of the body 1, or the interval distribution of the plurality of protrusions 2 around the center of the body 1.

[0080] Reference Figure 1 and Figure 2As shown, the height H of the protrusion 2 extending outward from the body 1 is set between 0.5 microns and 20 microns, that is, the heights of the multiple protrusions 2 extending outward from the surface of the body 1 can be different, and only need to be distributed between 0.5 microns and 20 microns. For example, the height H of the first protrusion 2 extending outward from the body 1 is 0.5 microns, the height H of the second protrusion 2 extending outward from the body 1 is 5 microns, the height H of the third protrusion 2 extending outward from the body 1 is 10 microns, the height H of the fourth protrusion 2 extending outward from the body 1 is 20 microns, etc. Those skilled in the art can specifically determine the extension height of each protrusion 2 according to the limited range of the above-mentioned extension height, and no excessive restrictions are made here.

[0081] A groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusion 2 and the groove 3 are smoothly connected, wherein the smooth connection can be understood as the area of ​​the protrusion 2 close to the groove 3 is an arc portion, and the area of ​​the groove 3 close to the protrusion 2 is also an arc portion, so that the surfaces of the two arc portions are tangent at the connection between the protrusion 2 and the groove 3. Thus, the areas where the multiple protrusions 2 are located cooperate with the multiple grooves 3 to form a rough surface covering the surface of the body 1. And through the extension height limit of the protrusion 2, the roughness of the rough surface formed is less than the roughness of the user's hand skin, thereby forming a skin-friendly touch. When the user's hand touches the shell, it can feel a soft and delicate touch, and the friction between the hand and the shell can be increased to prevent the user from slipping when grasping the shell. And it can further increase the safety of the user when using the household appliance including the shell.

[0082] An optional embodiment of the invention, referring to Figure 6 As shown, the embodiment of the present invention further discloses another method for manufacturing a housing, and the manufacturing method may include:

[0083] S601. Add solid material into an injection molding machine, set the injection temperature of the injection molding machine between 200 degrees Celsius and 250 degrees Celsius, and set the injection pressure between 50 MPa and 100 MPa to obtain a molten material, wherein the solid material is one of an acrylonitrile-butadiene-styrene copolymer material and a polypropylene material.

[0084] In the embodiment of the present invention, the solid material may be an acrylonitrile-butadiene-styrene copolymer material or a polypropylene material. Acrylonitrile-butadiene-styrene copolymer material (ABS) is a synthetic resin made of a terpolymer composed of acrylonitrile, butadiene and styrene. It has good heat resistance and good wear resistance, and can be applied to processes such as blow molding, extrusion, injection molding, etc., and has a wide range of applications. Polypropylene material (PP) is a semi-crystalline thermoplastic polymer made from propylene monomers through addition polymerization. It has good heat resistance, wear resistance and mechanical strength, and can also be applied to processes such as blow molding, extrusion, injection molding, etc., and has a wide range of applications. Therefore, when the shell is made of acrylonitrile-butadiene-styrene copolymer material and polypropylene material, it can be ensured that the shell has good wear resistance, and the roughness of the rough surface formed by the dense protrusions 2 is relatively uniform, so that the protrusions 2 will not break or break when the user's hands touch frequently.

[0085] Correspondingly, when the injection temperature of the injection molding machine is set between 200 degrees Celsius and 250 degrees Celsius, and the injection pressure is set between 50 MPa and 100 MPa, it can ensure that the acrylonitrile-butadiene-styrene copolymer material and the polypropylene material are fully melted, so that the later molten material can fully fill each area of ​​the mold.

[0086] S602, providing a mold, wherein the surface of the mold is formed into a rough inner surface by laser lithography.

[0087] S603, injecting the molten material into the mold.

[0088] In the embodiment of the present invention, a rough surface is formed on an inner surface of the mold by laser lithography. For example, referring to the above description of the shell, it can be known that the rough surface of the inner surface of the mold is adapted to the rough surface shape of the shell, so that the shell can be processed by injecting molten material into the mold.

[0089] In some embodiments, the mold can be made of a metal material with good hardness, heat resistance and wear resistance. For example, the mold can be made of tool steel material (such as model SKD11). For another example, the mold can be made of cemented carbide.

[0090] The rough surface on the mold can be obtained by using a laser process, such as femtosecond laser or ultrafast laser to process the surface of a plate-shaped mold. In other embodiments, the mold can be processed by combining metal etching and laser laser processes. For example, an initial rough inner surface is first formed by etching, and then a laser is used to perform secondary processing on the initial rough inner surface, such as sharp areas, so that the subsequent protrusion 2 of the shell is more rounded.

[0091] S604, cooling the mold to obtain a solidified shell, wherein the shell includes a main body 1 and a plurality of protrusions 2, the plurality of protrusions 2 are spaced apart on the main body 1, the height of the protrusions 2 extending outward along the surface of the main body 1 is between 0.5 microns and 20 microns, a groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected.

[0092] In an embodiment of the present invention, after the molten material is injected into the mold, the mold can be cooled so that the molten material is solidified and formed to obtain a shell with a rough surface. At this time, the solidified shell is taken out of the mold to obtain a shell of a final product. Wherein, the shell includes a body 1 and a plurality of protrusions 2, and the plurality of protrusions 2 are spaced apart on the body 1. The height of the protrusions 2 extending outward along the surface of the body 1 is between 0.5 microns and 20 microns. A groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 are smoothly connected with the groove 3. The width of the groove 3 formed between two protrusions 2 at adjacent positions is set between 10 microns and 500 microns. The top of the protrusion 2 away from the body 1 is a circular arc portion 201. And the diameter of the circular arc portion 201 is set between 1 and 5 microns.

[0093] The shell may include a body 1 and a plurality of protrusions 2, wherein the body 1 serves as a structural support for the plurality of protrusions 2, and the plurality of protrusions 2 are spaced apart on the body 1. For example, the spaced distribution may include uniform distribution, and the uniform distribution may be understood as the regular distribution of the plurality of protrusions 2 on the body 1. For example, when the cross-sectional shape of the body 1 is rectangular, the spaced distribution may be understood as the spaced distribution of the plurality of protrusions 2 along the length direction of the body 1, or the spaced distribution of the plurality of protrusions 2 along the width direction of the body 1. For another example, when the cross-sectional shape of the body 1 is circular, the spaced distribution may be understood as the spaced distribution of the plurality of protrusions 2 along the radial direction of the body 1, or the spaced distribution of the plurality of protrusions 2 around the center of the body 1 at an angle.

[0094] Reference Figure 1 and Figure 2As shown, the height H of the protrusion 2 extending outward from the body 1 is set between 0.5 microns and 20 microns, that is, the heights of the multiple protrusions 2 extending outward from the surface of the body 1 can be different, and only need to be distributed between 0.5 microns and 20 microns. For example, the height H of the first protrusion 2 extending outward from the body 1 is 0.5 microns, the height H of the second protrusion 2 extending outward from the body 1 is 5 microns, the height H of the third protrusion 2 extending outward from the body 1 is 10 microns, the height H of the fourth protrusion 2 extending outward from the body 1 is 20 microns, etc. Those skilled in the art can specifically determine the extension height of each protrusion 2 according to the limited range of the above-mentioned extension height, and no excessive restrictions are made here.

[0095] A groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected, wherein the smooth connection can be understood as the area of ​​the protrusion 2 close to the groove 3 is an arc portion, and the area of ​​the groove 3 close to the protrusion 2 is also an arc portion, so that the surfaces of the two arc portions are tangent at the connection between the protrusion 2 and the groove 3. As a result, the areas where the multiple protrusions 2 are located cooperate with the multiple grooves 3 to form a rough surface covering the surface of the body 1. The protrusions 2 and the grooves 3 cooperate and can be continuously arranged on the surface of the body 1. In other words, the multiple protrusions 2 and the grooves 3 can cooperate with each other and be densely arranged on the surface of the body 1 until the surface of the body 1 is completely covered, thereby forming a rough surface that completely covers the surface of the body 1.

[0096] The top of the protrusion 2 away from the body 1 is an arc portion 201. The setting of the arc portion 201 makes the top of the protrusion 2 have a higher smoothness, and the protrusion 2 is the area that directly contacts the user's hand. In other words, while the protrusion 2 and the groove 3 form a rough surface with a certain roughness, the arc portion 201 also reduces the sharpness of the protrusion 2 when it contacts the hand, that is, the arc portion 201 can increase the contact area with the hand and can evenly disperse the pressure applied by the user's hand to the protrusion 2, thereby further improving the comfort and uniformity of the user's hand touch.

[0097] The diameter R of the arc portion 201 is set between 1 and 5 microns. That is to say, the diameters of the arc portions 201 corresponding to the plurality of protrusions 2 may be different, and only need to be distributed between 1 and 5 microns. For example, the diameter R of the arc portion 201 of the first protrusion 2 is 1 micron, the diameter R of the arc portion 201 of the second protrusion 2 is 2 microns, the diameter R of the arc portion 201 of the third protrusion 2 is 3 microns, the diameter R of the arc portion 201 of the fourth protrusion 2 is 4 microns, the diameter R of the arc portion 201 of the fifth protrusion 2 is 5 microns, etc. Those skilled in the art can specifically determine the diameter of the arc portion 201 of each protrusion 2 according to the diameter limit range of the arc portion 201, and no excessive restrictions are made here.

[0098] The diameter of the arc portion 201 is set between 1 micron and 5 microns, which can ensure that the plurality of protrusions 2 are arranged at intervals to form a certain roughness. If the diameter of the arc portion 201 is less than 1 micron, the diameter of the arc portion 201 of the protrusion 2 is too small, which increases the sharpness of the protrusion 2, thereby reducing the comfort of the user touching the rough surface. If the diameter of the arc portion 201 is greater than 5 microns, the diameter of the arc portion 201 of the protrusion 2 is too large, which increases the smoothness of the protrusion 2, thereby reducing the skin-friendly feeling of the user touching the rough surface.

[0099] Reference Figure 1 and Figure 2 As shown, the width D of the groove 3 formed between two protrusions 2 at adjacent positions is set between 10 microns and 500 microns, that is, the width of the groove 3 formed between two protrusions 2 at multiple groups of adjacent positions can be different, and only needs to be distributed between 10 microns and 500 microns. For example, the width of the groove 3 formed between the two protrusions 2 at the first group of adjacent positions is 10 microns, the width of the groove 3 formed between the two protrusions 2 at the second group of adjacent positions is 50 microns, the width of the groove 3 formed between the two protrusions 2 at the third group of adjacent positions is 100 microns, the width of the groove 3 formed between the two protrusions 2 at the fourth group of adjacent positions is 300 microns, and the width of the groove 3 formed between the two protrusions 2 at the fifth group of adjacent positions is 500 microns. Those skilled in the art can specifically determine the width of the groove 3 according to the width limit range of the groove 3 described above, and no excessive restrictions are made here.

[0100] By limiting the width of the groove 3 to between 10 microns and 500 microns, the distance between two adjacent protrusions 2 can be ensured to be appropriate, so that a rough surface with bumps and depressions that feels comfortable can be formed on the surface of the body 1. Since the width D of the groove 3 can be understood as the distance between the vertices of two protrusions 2 at adjacent positions, if the width of the groove 3 is less than 10 microns, the distance between the two protrusions 2 at adjacent positions is too small, and it is impossible to achieve a smooth connection between the arc portion 201 of the protrusion 2 and the protrusion 2 when the extension height is set within the range of 0.5 microns to 20 microns, thereby increasing the sharpness of the protrusion 2 and reducing the user's comfort. If the width of the groove 3 is greater than 500 microns, the distance between two adjacent protrusions 2 is too large, reducing the number of protrusions 2 in the same area on the shell surface, thereby reducing the skin-friendly touch of the rough surface.

[0101] By limiting the extension height of the protrusion 2, limiting the diameter of the arc portion 201, and limiting the width of the groove 3 formed between two protrusions 2 at adjacent positions, the roughness of the rough surface formed is less than the roughness of the user's hand skin, and has a skin-friendly rough surface. When the user's hand touches any area on the surface of the shell, they can feel a soft and delicate touch, and the friction between the hand and the shell can be increased to prevent the user from slipping when grasping the shell. And it can further increase the safety of the user when using the household appliance including the shell.

[0102] In summary, an embodiment of the present invention discloses a method for manufacturing a shell, which may include first providing a mold and a molten material, wherein the surface of the mold is formed into a rough inner surface by laser lithography. Then the molten material is injected into the mold. Finally, the mold is cooled to obtain a solidified shell, wherein the shell includes a body 1 and a plurality of protrusions 2, wherein the plurality of protrusions 2 are spaced apart on the body 1, wherein the height of the protrusions 2 extending outward along the surface of the body 1 is between 0.5 microns and 20 microns, and a groove 3 is formed between two protrusions 2 at adjacent positions, and the protrusions 2 and the grooves 3 are smoothly connected. Thus, the protrusions 2 and the grooves 3 cooperate to form a rough surface distributed on the body 1, and when the user's hand contacts a rough surface with a roughness smaller than that of the skin surface, the user's sense of touch can be improved, and at the same time, the friction of the hand-gripping part can be enhanced to prevent slipping when using the electrical appliance, thereby improving the safety of the electrical appliance.

[0103] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0104] It is easy for a person skilled in the art to think that any combination of the above embodiments is feasible, so any combination of the above embodiments is an implementation scheme of the present invention. However, due to space limitations, this specification will not describe them in detail here.

[0105] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0106] Similarly, it should be understood that in order to streamline the present invention and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof.

[0107] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

Claims

1. A housing, characterized in that: The shell comprises a main body (1) and a plurality of protrusions (2), wherein the plurality of protrusions (2) are spaced apart on the main body (1), wherein the height of the protrusions (2) extending outwardly along the surface of the main body (1) is between 0.5 micrometers and 20 micrometers, a groove (3) is formed between two protrusions (2) at adjacent positions, and the protrusions (2) and the grooves (3) are smoothly connected.

2. The housing according to claim 1, characterized in that The protrusions (2) and the grooves (3) are continuously arranged on the body (1) to form a rough surface that completely covers the surface of the body (1).

3. The housing according to claim 2, characterized in that: The top of the protrusion (2) away from the body (1) is an arc portion (201).

4. The housing according to claim 3, characterized in that: The diameter of the arc portion (201) is set between 1 and 5 microns.

5. The housing according to claim 3, characterized in that: The width of the groove (3) formed between two protrusions (2) at adjacent positions is set between 10 micrometers and 500 micrometers.

6. The housing according to claim 3, characterized in that: The cross-sectional shape formed by the cooperation of the plurality of protrusions (2) and the grooves (3) is a wave shape.

7. The housing according to claim 1, characterized in that The body (1) is made of one of the following materials: acrylonitrile-butadiene-styrene copolymer material and polypropylene material.

8. The housing according to claim 7, characterized in that The protrusion (2) is made of one of the following materials: acrylonitrile-butadiene-styrene copolymer material and polypropylene material.

9. The housing according to claim 7, characterized in that: The body (1) and the protrusion (2) are an integrated structure.

10. A household appliance, characterized in that: The household appliance comprises a housing as described in any one of claims 1-9.

11. A method for manufacturing a housing, characterized in that: The manufacturing method comprises: Providing a mold and a molten material, wherein the surface of the mold is formed into a rough inner surface by laser irradiation; injecting the molten material into the mold; The mold is cooled to obtain a solidified shell, wherein the shell comprises a body (1) and a plurality of protrusions (2), the plurality of protrusions (2) are spaced apart on the body (1), the height of the protrusions (2) extending outward from the surface of the body (1) is between 0.5 micrometers and 20 micrometers, a groove (3) is formed between two protrusions (2) at adjacent positions, and the protrusions (2) and the grooves (3) are smoothly connected.

12. The method for manufacturing a housing according to claim 11, characterized in that: The manufacturing method further comprises: Add solid material into an injection molding machine, set the injection molding temperature of the injection molding machine between 200 degrees Celsius and 250 degrees Celsius, and set the injection molding pressure between 50 MPa and 100 MPa to obtain a molten material, wherein the solid material is one of an acrylonitrile-butadiene-styrene copolymer material and a polypropylene material.

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