Cover components, household appliances and molds

Abstract

The present invention provides a cover component, household appliance, and mold. The cover component's cover body includes a first plate segment, a second plate segment, and a third plate segment arranged sequentially along a first extension direction. The second plate segment has a gate molding area corresponding to the mold's gate. The thickness of the second plate segment gradually decreases from the gate molding area to the first connecting end of the second plate segment in a direction opposite to the first extension direction. The thickness of the second plate segment gradually decreases from the gate molding area to the second connecting end of the second plate segment along the first extension direction. The thickness of the end of the first plate segment connected to the first connecting end is equal to the thickness of the first connecting end and is the maximum thickness of the first plate segment. The thickness of the end of the third plate segment connected to the second connecting end is equal to the thickness of the second connecting end and is the maximum thickness of the third plate segment. This cover component solves the problem of spray-free injection molded parts in the prior art being prone to appearance defects.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and in particular to a cover component, a household appliance and a mold. Background Art

[0002] Currently, home appliances typically use spraying to surface-treat injection molded parts, enhancing various colors and textures while also masking some cosmetic flaws. However, this approach presents challenges such as high cost and environmental impact. Therefore, spray-free technology can be used to replace and address these issues. Injection molded parts made with spray-free materials exhibit unique light and shadow effects and a metallic sheen after molding, achieving an appearance comparable to or superior to spray-coated parts without requiring secondary processing. This technology offers advantages such as excellent functionality, low cost, and environmental friendliness.

[0003] However, spray-free materials are very prone to appearance defects such as flow marks, weld marks, and gate marks during the injection molding process, and the location or extent of occurrence is difficult to predict and the consistency is poor. Summary of the Invention

[0004] The main purpose of the present invention is to provide a cover component, a household appliance and a mold to solve the problem in the prior art that spray-free injection molded parts are prone to appearance defects.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a cover component is provided, including a cover body, the cover body including a first plate segment, a second plate segment and a third plate segment arranged in sequence along a first extension direction, the first connecting end of the second plate segment is connected to the first plate segment, and the second connecting end of the second plate segment is connected to the third plate segment, the cover component is a spray-free injection molded part, and the second plate segment has a gate molding area corresponding to the gate of the mold; along the opposite direction to the first extension direction, the thickness of the second plate segment gradually decreases from the gate molding area to the first connecting end; along the first extension direction, the thickness of the second plate segment gradually decreases from the gate molding area to the second connecting end; the thickness of the first plate segment at one end connected to the first connecting end is equal to the thickness of the first connecting end and is the maximum thickness of the first plate segment, and the thickness of the third plate segment at one end connected to the second connecting end is equal to the thickness of the second connecting end and is the maximum thickness of the third plate segment.

[0006] Furthermore, along the third extension direction, the width of the first plate segment along the first extension direction remains unchanged, the width of the second plate segment along the first extension direction remains unchanged, and the width of the third plate segment along the first extension direction remains unchanged; the width of the first plate segment along the first extension direction, the width of the second plate segment along the first extension direction, and the width of the third plate segment along the first extension direction are all equal; wherein, the third extension direction is perpendicular to the first extension direction.

[0007] Furthermore, the cover body includes a top surface, a bottom surface and side walls extending in the circumferential direction of the cover body, the top surface is an appearance surface, and at least part of the side wall and the bottom surface are non-appearance surfaces; wherein the gate molding area is arranged on the non-appearance surface.

[0008] Furthermore, the gate molding area is arranged on the bottom surface and extends to the connection between the bottom surface and the side wall; or, the gate molding area is arranged on the side wall; or, the gate molding area is arranged on the side wall and the bottom surface.

[0009] Furthermore, the bottom surface and the side wall are connected by a rounded transition; when the gate molding area is set on the bottom surface and extends to the connection between the bottom surface and the side wall, the gate molding area extends to the connection between the rounded corner and the side wall.

[0010] Furthermore, the length of the gate molding area along its longitudinal direction is greater than or equal to 8 mm; and / or the width of the gate molding area along its width direction ranges from 0.6 mm to 2 mm.

[0011] Furthermore, the cover component further includes: a positioning portion, which is provided on the non-exterior surface of the cover body, and a maximum distance between the positioning portion and an end portion of the cover body is less than or equal to 50 mm.

[0012] Furthermore, the positioning portion is provided on the second plate segment.

[0013] Furthermore, the positioning portion is a convex structure or a concave structure.

[0014] Furthermore, the cover component further includes a fixing portion, which is arranged on the side wall and on the non-exterior surface.

[0015] Furthermore, the side wall includes a first side wall, and the first side wall includes a first wall surface, a second wall surface and a third wall surface connected in sequence along its extension direction; in a direction perpendicular to the extension direction of the first side wall, the first wall surface, the second wall surface and the third wall surface are all walls of equal width; the width of the first wall surface along the extension direction of the first side wall, the width of the second wall surface along the extension direction of the first side wall and the width of the third wall surface along the extension direction of the first side wall are equal; the first wall surface and / or the third wall surface are provided with a fixing portion.

[0016] Furthermore, the fixing portion is a buckle; and / or, the fixing portion is a step structure; and or, the fixing portion includes a first protrusion, and the first protrusion is provided with a connecting hole.

[0017] According to another aspect of the present invention, a household appliance is provided, comprising a cover member, wherein the cover member is the above-mentioned cover member.

[0018] According to another aspect of the present invention, a mold is provided, wherein the mold has a cavity for forming the above-mentioned cover plate component, and the mold further has a gate, which is connected to the cavity.

[0019] Furthermore, the gate is a fan-shaped gate.

[0020] The cover component of this invention is manufactured using spray-free technology. This exterior component is an injection-molded product made from a spray-free material. After molding, the spray-free injection molded part exhibits unique light and shadow effects and a metallic luster, achieving an appearance comparable to or superior to spray-painted parts without requiring secondary processing. This technology offers advantages such as excellent functionality, low cost, and environmental friendliness. The gate molding area of ​​this cover component is located on the second plate section of the cover body. The cover body is thick in the middle and thinner on both sides to form a central flow guide, which promotes the formation of a fountain of injection molded melt and prevents flow marks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 An axonometric view showing an angle of an embodiment of a cover member according to the present invention;

[0023] Figure 2 shows a cross-sectional view of an embodiment of a cover member according to the present invention;

[0024] Figure 3 shows a top view of an embodiment of a cover member according to the present invention;

[0025] Figure 4 Shown Figure 3 A cross-sectional view of the cover plate component at section NN;

[0026] Figure 5 shows a side view of an embodiment of a cover member according to the present invention;

[0027] Figure 6 A front view showing an embodiment of a cover member according to the present invention; and

[0028] Figure 7 An axonometric view from another angle is shown of an embodiment of a cover member according to the present invention.

[0029] The above drawings include the following reference numerals:

[0030] 10. Cover plate body; 11. First plate section; 12. Second plate section; 13. Third plate section; 14. Top surface; 15. Bottom surface; 16. Side wall; 17. First side wall; 171. First wall surface; 172. Second wall surface; 173. Third wall surface; 20. Gate; 30. Gate molding area; 40. Positioning portion; 50. Fixing portion; 60. Second protrusion; 70. Buffer runner; 80. Melt inlet. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] The present invention provides a cover component, please refer to Figures 1 to 7 , including a cover plate body 10, the cover plate body 10 includes a first plate segment 11, a second plate segment 12 and a third plate segment 13 arranged in sequence along a first extension direction, the first connection end of the second plate segment 12 is connected to the first plate segment 11, and the second connection end of the second plate segment 12 is connected to the third plate segment 13, the cover plate component is a spray-free injection molded part, the second plate segment 12 has a gate molding area 30 for corresponding to the gate 20 of the mold; along the direction opposite to the first extension direction, the thickness of the second plate segment 12 along the second extension direction gradually decreases from the gate molding area 30 to the first connection end; along the first extension direction, the thickness of the second plate segment 12 along the second extension direction gradually decreases from the gate molding area 30 to the second connection end; the thickness of the first plate segment 11 at one end connected to the first connection end is equal to the thickness of the first connection end and is the maximum thickness of the first plate segment 11, the thickness of the third plate segment 13 at one end connected to the second connection end is equal to the thickness of the second connection end and is the maximum thickness of the third plate segment 13; wherein the second extension direction is perpendicular to the first extension direction.

[0035] The cover component of the present invention is manufactured using spray-free technology. This exterior component is an injection-molded product made of spray-free materials. Spray-free injection molded parts exhibit unique light and shadow effects and a metallic sheen after molding, achieving an appearance comparable to or superior to spray-painted parts without secondary processing. This technology offers advantages such as excellent functionality, low cost, and environmental friendliness. The gate molding area 30 of this cover component is located on the second plate section 12 of the cover body 10. The cover body 10 is thick in the middle and thinner at the sides to form a central flow guide, which facilitates the injection molded melt to form a fountain and prevent flow marks.

[0036] The first extension direction is Figure 2 The X direction in the second extension direction is Figure 2 The Z direction in .

[0037] Specifically, the gate molding area 30 is an axisymmetric structure, the first reference plane is perpendicular to the gate molding area 30, and coincides with the symmetry axis of the gate molding area 30; the thickness of the second plate segment 12 along the second extension direction gradually decreases from the gate molding area 30 to the first connecting end, which means that from the first reference plane to the first connecting end, the thickness of the second plate segment 12 along the second extension direction gradually decreases; the thickness of the second plate segment 12 along the second extension direction gradually decreases from the gate molding area 30 to the second connecting end, which means that from the first reference plane to the second connecting end, the thickness of the second plate segment 12 along the second extension direction gradually decreases.

[0038] It should be noted that when a mold is used to injection mold the cover component, the mold cavity is used to form the cover component, the gate 20 (also called the pouring gate) is connected to the cavity, and the material in the gate 20 will form a gate molding part. The area where the cover component is connected to the gate molding part is the gate molding area 30.

[0039] Specifically, along the third extension direction, the width of the first plate segment 11 along the first extension direction remains unchanged, the width of the second plate segment 12 along the first extension direction remains unchanged, and the width of the third plate segment 13 along the first extension direction remains unchanged; the width of the first plate segment 11 along the first extension direction, the width of the second plate segment 12 along the first extension direction, and the width of the third plate segment 13 along the first extension direction are all equal; wherein the third extension direction is perpendicular to the first extension direction, and the third extension direction is Figure 3 The widths of the first plate segment 11, the second plate segment 12, and the third plate segment 13 along the first extension direction are all equal, which can achieve balanced flow and pressure in the injection molding process. This allows the injection melt to reach and fill the plate segments on both sides of the gate molding area 30 almost simultaneously, facilitating symmetrical fountain flow and reducing flow marks, thus resolving the problem of appearance defects easily occurring in spray-free injection molded parts. Furthermore, pressure balance helps control warping deformation of the cover plate component.

[0040] Preferably, the cover plate body 10 is symmetrically arranged relative to the first symmetric plane, the first symmetric plane is perpendicular to the first extension direction, and the gate molding area 30 is symmetrically arranged relative to the first symmetric plane.

[0041] In this embodiment, the cover body 10 includes a top surface 14, a bottom surface 15 and a side wall 16 extending in the circumferential direction of the cover body 10, the top surface 14 is an appearance surface, at least part of the side wall 16 and the bottom surface 15 are non-appearance surfaces; wherein, the gate molding area 30 is arranged on the non-appearance surface.

[0042] It should be noted that when the cover component is applied to a household appliance, the appearance surface of the cover body 10 is an integral part of the appearance of the household appliance, that is, the appearance surface of the cover body 10 is the surface exposed in the application environment and can be seen by the user; the non-appearance surface of the cover body 10 is located inside the household appliance, that is, the non-appearance surface of the cover body 10 is the surface hidden inside the household appliance and cannot be seen by the user.

[0043] Optionally, the gate molding area 30 is arranged on the bottom surface 15 and extends to the connection between the bottom surface 15 and the side wall 16; or, the gate molding area 30 is arranged on the side wall 16; or, the gate molding area 30 is arranged on the side wall 16 and the bottom surface 15.

[0044] Specifically, the bottom surface 15 and the side wall 16 are connected by a rounded corner transition. When the gate forming area 30 is provided on the bottom surface 15 and extends to the connection between the bottom surface 15 and the side wall 16, the gate forming area 30 extends to the connection between the rounded corner and the side wall 16. The provision of the rounded corner can reduce the occurrence of flow marks on the exterior surface.

[0045] In this embodiment, the length of the gate forming area 30 along its longitudinal direction is greater than or equal to 8 mm; and / or the width of the gate forming area 30 along its width direction is in the range of 0.6 mm to 2 mm. It should be noted that the longitudinal direction of the gate forming area 30 is the width direction of the gate 20, that is, the direction perpendicular to the mold opening direction, that is, Figure 2 The width direction of the gate molding area 30 is the thickness direction of the gate 20, that is, the mold opening direction of the mold, that is, Figure 2 This setting can ensure the low flow rate of the injection melt and reduce the generation of flow marks on the surface.

[0046] Specifically, the value range between 0.6 mm and 2 mm includes a value of 0.6 mm and a value of 2 mm.

[0047] In this embodiment, the cover assembly further includes a positioning portion 40 disposed on the non-exterior surface of the cover body 10. The maximum distance between the positioning portion 40 and the end of the cover body 10 is less than or equal to 50 mm. Specifically, when the cover assembly is installed on a household appliance, the positioning portion 40 is used to position it relative to other components of the household appliance. A maximum distance of less than or equal to 50 mm between the positioning portion 40 and the end of the cover body 10 can reduce the occurrence of flow marks on the exterior surface.

[0048] Specifically, the positioning portion 40 is provided on the second plate segment 12. Such a configuration can reduce the generation of flow marks on the exterior surface.

[0049] Specifically, the positioning portion 40 is a convex structure or a concave structure.

[0050] In this embodiment, the cover assembly further includes a fixing portion 50, which is disposed on the sidewall 16 and on the non-exterior surface. When the melt flows through the fixing portion 50, it will undergo flow redirection. The location of the fixing portion 50 at the filling edge (i.e., the sidewall 16) prevents the flow redirection from affecting the exterior surface, thereby reducing the occurrence of flow marks on the exterior surface.

[0051] Specifically, the sidewall 16 includes a first sidewall 17, which includes a first wall surface 171, a second wall surface 172, and a third wall surface 173, which are connected in sequence along its extension direction. In a direction perpendicular to the extension direction of the first sidewall 17, the first wall surface 171, the second wall surface 172, and the third wall surface 173 are all equal in width. The width of the first wall surface 171, the width of the second wall surface 172, and the width of the third wall surface 173 are equal along the extension direction of the first sidewall 17. A fixing portion 50 is provided on the first wall surface 171 and / or the third wall surface 173. The fixing portion 50 is positioned near the edge 1 / 3 region to facilitate controlling deformation and warping during assembly.

[0052] Optionally, the fixing portion 50 is a buckle; and / or, the fixing portion 50 is a step structure; and / or, the fixing portion 50 includes a first protrusion, and the first protrusion is provided with a connecting hole.

[0053] In this embodiment, a second raised portion 60 is provided on the exterior surface of the cover plate body 10. Along the flow direction of the injection melt, the minimum distance between the second raised portion 60 and the gate molding area 30 is greater than the maximum distance between the second raised portion 60 and the filling end of the exterior surface. This arrangement reduces the occurrence of flow marks on the exterior surface.

[0054] It should be noted that the minimum distance between the second raised portion 60 and the gate molding area 30 along the flow direction of the injection melt being greater than the maximum distance between the second raised portion 60 and the filling end of the appearance surface means that, during the cover component molding process, the minimum distance the injection melt flows from the second raised portion 60 to the gate molding area 30 is greater than the maximum distance the injection melt flows from the second raised portion 60 to the filling end of the appearance surface. The filling end of the appearance surface refers to the position on the appearance surface to which the injection melt last flows during the molding process of the appearance component.

[0055] Specifically, the height of the second protrusion 60 is less than or equal to 0.3 mm. This configuration reduces the generation of flow marks on the exterior surface.

[0056] Specifically, the minimum distance between the second protrusion 60 and the gate molding area 30 is greater than or equal to 20 mm. This configuration reduces the generation of flow marks on the exterior surface.

[0057] In this embodiment, a second recessed portion is provided on the exterior surface of the cover plate body 10. Along the flow direction of the injection melt, the minimum distance between the second recessed portion and the gate molding area 30 is greater than the maximum distance between the second recessed portion and the filling end of the exterior surface. This arrangement reduces the occurrence of flow marks on the exterior surface.

[0058] It should be noted that, along the flow direction of the injection melt, the minimum distance between the second recessed portion and the gate molding area 30 is greater than the maximum distance between the second recessed portion and the filling end of the appearance surface, which means that during the molding process of the cover component, the minimum distance that the injection melt flows from the second recessed portion to the gate molding area 30 is greater than the maximum distance that the injection melt flows from the second recessed portion to the filling end of the appearance surface.

[0059] Specifically, the depth of the second recessed portion is less than or equal to 0.3 mm. Such a configuration reduces the generation of flow marks on the exterior surface.

[0060] Specifically, the minimum distance between the second recessed portion and the gate molding area 30 is greater than or equal to 20 mm. This arrangement reduces the generation of flow marks on the exterior surface.

[0061] In this embodiment, the cover component is made of a spray-free material, which includes a base material and particles distributed in the base material; wherein the base material is a thermoplastic polymer material; and the particles are at least one of metal particles, pearlescent powder and fibers.

[0062] Optionally, the metal particles are aluminum or copper.

[0063] Optionally, the fibers are nylon or natural fibers.

[0064] In this embodiment, the exterior surface of the cover body 10 is provided with a brushed pattern, which extends parallel to the flow direction of the injection molding melt. If flow marks appear on the exterior surface, they will be oriented in the same direction as the flow. The parallelism of the brushed pattern with the melt flow direction obscures the flow marks, effectively concealing them.

[0065] It should be noted that brushed texture is formed on the surface of the appearance parts through surface brushing treatment, and surface brushing treatment is a surface treatment method that has a decorative effect.

[0066] The present invention further provides a household appliance, comprising a cover component, wherein the cover component is the cover component in the above embodiment.

[0067] The present invention further provides a mold, wherein the mold has a cavity for forming the cover component in the above embodiment, and the mold further has a gate 20, which is connected to the cavity.

[0068] Preferably, the gate 20 is a fan-shaped gate. Such a setting can ensure that the injection melt flows at a low flow rate and is easy to remove the gate molding part.

[0069] In this embodiment, the mold further comprises a buffer runner 70 and a melt inlet 80. The first end of the buffer runner 70 is connected to the melt inlet 80, and the buffer runner 70 is connected to the end of the gate 20 away from the mold cavity, so that the injection melt flows through the melt inlet 80, the buffer runner 70, and the gate 20 in sequence before entering the mold cavity. The buffer runner 70 is a curved runner. The provision of the buffer runner 70 provides a buffering effect on the injection melt.

[0070] The buffer channel 70 is a curved channel, that is, the axis of the buffer channel 70 is a curve.

[0071] Optionally, the buffer flow channel 70 is an arc-shaped flow channel, that is, the axis of the buffer flow channel 70 is an arc.

[0072] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0073] The cover component of the present invention is manufactured using spray-free technology. This exterior component is an injection-molded product made of spray-free materials. Spray-free injection molded parts exhibit unique light and shadow effects and a metallic sheen after molding, achieving an appearance comparable to or superior to spray-painted parts without secondary processing. This technology offers advantages such as excellent functionality, low cost, and environmental friendliness. The gate molding area 30 of this cover component is located on the second plate section 12 of the cover body 10. The cover body 10 is thick in the middle and thinner at the sides to form a central flow guide, which facilitates the injection molded melt to form a fountain and prevent flow marks.

[0074] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0075] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0076] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A cover plate component, comprising a cover plate body (10), wherein the cover plate body (10) comprises a first plate segment (11), a second plate segment (12), and a third plate segment (13) sequentially arranged along a first extension direction, wherein a first connecting end of the second plate segment (12) is connected to the first plate segment (11), and a second connecting end of the second plate segment (12) is connected to the third plate segment (13), characterized in that: The cover plate component is a spray-free injection molded part, and the second plate section (12) has a gate molding area (30) for corresponding to the gate (20) of the mold; Along the direction opposite to the first extension direction, the thickness of the second plate segment (12) gradually decreases from the gate molding area (30) to the first connection end; along the first extension direction, the thickness of the second plate segment (12) gradually decreases from the gate molding area (30) to the second connection end; the thickness of the end of the first plate segment (11) connected to the first connection end is equal to the thickness of the first connection end and is the maximum thickness of the first plate segment (11); the thickness of the end of the third plate segment (13) connected to the second connection end is equal to the thickness of the second connection end and is the maximum thickness of the third plate segment (13); A second protrusion (60) is provided on the exterior surface of the cover plate body (10); along the flow direction of the injection melt, the minimum distance between the second protrusion (60) and the gate molding area (30) is greater than the maximum distance between the second protrusion (60) and the filling end of the exterior surface; The minimum distance between the second protrusion (60) and the gate molding area (30) is greater than or equal to 20 mm; The height of the second protrusion (60) is less than or equal to 0.3 mm.

2. The cover member according to claim 1, wherein: Along the third extension direction, the width of the first plate segment (11) along the first extension direction remains unchanged, the width of the second plate segment (12) along the first extension direction remains unchanged, and the width of the third plate segment (13) along the first extension direction remains unchanged; The width of the first plate segment (11) along the first extension direction, the width of the second plate segment (12) along the first extension direction, and the width of the third plate segment (13) along the first extension direction are all equal; Wherein, the third extension direction is perpendicular to the first extension direction.

3. The cover member according to claim 1, wherein: The cover plate body (10) comprises a top surface (14), a bottom surface (15), and a side wall (16) extending in a circumferential direction of the cover plate body (10), the top surface (14) being an appearance surface, and at least a portion of the side wall (16) and the bottom surface (15) being non-appearance surfaces; Wherein, the gate molding area (30) is arranged on the non-appearance surface.

4. The cover member according to claim 3, wherein: The gate molding area (30) is arranged on the bottom surface (15) and extends to the connection between the bottom surface (15) and the side wall (16); or The gate molding area (30) is provided on the side wall (16); or The gate molding area (30) is arranged on the side wall (16) and the bottom surface (15).

5. The cover member according to claim 4, characterized in that The bottom surface (15) and the side wall (16) are connected via a rounded transition; When the gate molding area (30) is arranged on the bottom surface (15) and extends to the connection between the bottom surface (15) and the side wall (16), the gate molding area (30) extends to the connection between the fillet and the side wall (16).

6. The cover member according to any one of claims 1 to 5, characterized in that The length of the gate molding area (30) along its longitudinal direction is greater than or equal to 8 mm; and / or, The width of the gate molding area (30) along its width direction ranges from 0.6 mm to 2 mm.

7. The cover member according to any one of claims 1 to 5, characterized in that: The cover plate component further includes: A positioning portion (40) is provided on the non-appearance surface of the cover body (10), and a maximum distance between the positioning portion (40) and an end portion of the cover body (10) is less than or equal to 50 mm.

8. The cover member according to claim 7, wherein: The positioning portion (40) is arranged on the second plate segment (12).

9. The cover member according to claim 7, wherein: The positioning portion (40) is a convex structure or a concave structure.

10. The cover member according to any one of claims 3 to 5, characterized in that The cover component further includes a fixing portion (50), and the fixing portion (50) is arranged on the side wall (16) and on the non-exterior surface.

11. The cover member according to claim 10, characterized in that: The side wall (16) includes a first side wall (17), and the first side wall (17) includes a first wall surface (171), a second wall surface (172), and a third wall surface (173) connected in sequence along its extension direction; in a direction perpendicular to the extension direction of the first side wall (17), the first wall surface (171), the second wall surface (172), and the third wall surface (173) are all equal-width wall surfaces; The width of the first wall surface (171) along the extension direction of the first side wall (17), the width of the second wall surface (172) along the extension direction of the first side wall (17), and the width of the third wall surface (173) along the extension direction of the first side wall (17) are equal; the first wall surface (171) and / or the third wall surface (173) are provided with the fixing portion (50).

12. The cover member according to claim 10, wherein: The fixing portion (50) is a buckle; and / or, The fixing portion (50) is a stepped structure; and or, The fixing portion (50) comprises a first protruding portion, and a connecting hole is provided on the first protruding portion.

13. A household appliance comprising a cover component, characterized in that: The cover member is the cover member according to any one of claims 1 to 12.

14. A mold, characterized in that: The mold has a cavity for forming the cover component according to any one of claims 1 to 12, and the mold further has a gate (20), wherein the gate (20) is connected to the cavity.

15. The mold according to claim 14, characterized in that The gate (20) is a fan-shaped gate.

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