Appearance parts, household appliances and molds

Abstract

The present invention provides an appearance component, a household appliance, and a mold. The appearance component is a spray-free injection molded part, comprising a first plate and a second plate, the first plate and the second plate being arranged at a predetermined angle. The first plate has a first end face and a second end face disposed opposite each other, and the second plate has a third end face and a fourth end face disposed opposite each other. The first end face and / or the second end face are appearance surfaces, while the third and fourth end faces are non-appearance surfaces, each of which has at least one feed molding area corresponding to one end of a mold's feed channel. Alternatively, the first end face and / or the second end face are appearance surfaces, while the third and / or the fourth end face are appearance surfaces, and the non-appearance surfaces have one or two feed molding areas corresponding to one end of a mold's feed channel. Each appearance surface is formed by melt flowing from a single feed channel. This appearance component solves the problem of appearance defects that are common in prior art spray-free injection molded parts.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and in particular to an appearance 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 an appearance 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] To achieve the above objectives, according to one aspect of the present invention, there is provided an appearance component, which is a spray-free injection molded part. The appearance component includes a first plate body and a second plate body, one end of the first plate body is connected to one end of the second plate body, and the first plate body and the second plate body are arranged at a preset angle, which is greater than 0 degrees and less than 180 degrees. The first plate body has a first end face and a second end face arranged opposite to each other, and the second plate body has a third end face and a fourth end face arranged opposite to each other. The appearance component has an appearance surface and a non-appearance surface. The first end face and / or the second end face is an appearance surface, and the third end face and the fourth end face are both non-appearance surfaces. The non-appearance surface has at least one feed molding area corresponding to one end of a feed channel of a mold. Alternatively, the first end face and / or the second end face is an appearance surface, and the third end face and / or the fourth end face are appearance surfaces, and the non-appearance surface has one or two feed molding areas corresponding to one end of a feed channel of the mold. Each appearance surface is filled and molded by melt flowing out of a feed channel.

[0006] Further, along the length direction of the feed forming zone, the feed forming zone is arranged in the middle of the first plate body; or, along the length direction of the feed forming zone, the feed forming zone is arranged in the middle of the second plate body.

[0007] Further, the first plate body has a first plate segment, a second plate segment and a third plate segment connected in sequence along its first extension direction, the widths of the first plate segment, the second plate segment and the third plate segment along the first extension direction are equal, and the feed molding area is arranged on the second plate segment; wherein the first extension direction is parallel to the length direction of the feed molding area; or the second plate body has a fourth plate segment, a fifth plate segment and a sixth plate segment connected in sequence along its second extension direction, the widths of the fourth plate segment, the fifth plate segment and the sixth plate segment along the second extension direction are equal, and the feed molding area is arranged on the fifth plate segment; wherein the second extension direction is parallel to the length direction of the feed molding area.

[0008] Furthermore, the first plate is symmetrically arranged relative to the first symmetrical plane, and the feeding and forming area is symmetrically arranged relative to the first symmetrical plane; or, the second plate is symmetrically arranged relative to the second symmetrical plane, and the feeding and forming area is symmetrically arranged relative to the second symmetrical plane.

[0009] Furthermore, the flow distance of the melt from the feed molding zone to the appearance surface is greater than 5 mm.

[0010] Furthermore, the feed channel includes a gate, the gate is connected to the cavity of the mold, and the feed molding area is arranged corresponding to the gate; or, the feed channel includes a gate and a transition feed channel, the gate is connected to the cavity of the mold through the transition feed channel, and the feed molding area is arranged corresponding to the opening at one end of the transition feed channel; wherein, a transition structure formed by the transition feed channel is provided on the feed molding area, and the transition structure has a gate molding area corresponding to the gate; or, the feed molding area is an area formed after cutting out the transition structure.

[0011] Furthermore, the feed channel includes a gate, which is connected to the cavity of the mold, and the feed molding area is arranged corresponding to the gate; the length of the feed molding area along its length direction is greater than or equal to 8 mm; and / or the width of the feed molding area along its width direction ranges from 0.6 mm to 2 mm.

[0012] Furthermore, the length of the appearance component in any extending direction thereof is less than or equal to 400 mm.

[0013] Furthermore, the first plate body includes a first plate segment, a second plate segment and a third plate segment connected in sequence, the first end of the second plate segment is connected to the first plate segment, the second end of the second plate segment is connected to the third plate segment, and the second plate segment is provided with a feed molding area; the thickness of the second plate segment in the direction from the feed molding area to the first end gradually decreases, and the thickness of the second plate segment in the direction from the feed molding area to the second end gradually decreases; the thickness of one end of the first plate segment connected to the first end is equal to the thickness of the first end and is the maximum thickness of the first plate segment, the thickness of one end of the third plate segment connected to the second end is equal to the thickness of the second end and is the maximum thickness of the third plate segment; and / or, the second plate The body includes a fourth plate segment, a fifth plate segment and a sixth plate segment connected in sequence, the first connecting end of the fifth plate segment is connected to the fourth plate segment, the second connecting end of the fifth plate segment is connected to the sixth plate segment, and a feed molding area is provided on the fifth plate segment; the thickness of the fifth plate segment gradually decreases from the feed molding area to the first connecting end, and the thickness of the fifth plate segment gradually decreases from the feed molding area to the second connecting end; the thickness of one end of the fourth 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 fourth plate segment, and the thickness of one end of the sixth 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 sixth plate segment.

[0014] Furthermore, the appearance 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 any one or more of metal particles, pearlescent powder and fibers.

[0015] Furthermore, the exterior surface is provided with wire drawing patterns, and the extension direction of the wire drawing patterns is parallel to the flow direction of the melt.

[0016] According to another aspect of the present invention, a household appliance is provided, comprising an appearance component, wherein an appearance surface of the appearance component forms at least a portion of the appearance surface of the household appliance, and the appearance component is the appearance component described above.

[0017] According to another aspect of the present invention, a mold is provided. The mold has a cavity for forming the above-mentioned appearance component. The mold also has a feed channel, one end of which is connected to the cavity.

[0018] Furthermore, the gate of the feed channel is a fan-shaped gate.

[0019] The appearance component of the present invention is manufactured using spray-free technology. The appearance component is an injection-molded product made of a spray-free material. When the first end face and / or the second end face are appearance surfaces and the third and fourth end faces are non-appearance surfaces, the non-appearance surfaces have at least one feed molding area corresponding to one end of the mold's feed channel. When the first end face and / or the second end face are appearance surfaces and the third and / or the fourth end face are appearance surfaces, the non-appearance surfaces have one or two feed molding areas corresponding to one end of the mold's feed channel. Furthermore, each appearance surface is filled with melt from only one feed channel. This arrangement prevents multiple melt streams from flowing through the same appearance surface, forming weld marks on that surface, thereby resolving the problem of appearance defects that are easily generated in spray-free injection molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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:

[0021] Figure 1 An axonometric view showing an angle of a first embodiment of an appearance component according to the present invention;

[0022] Figure 2 An axonometric view showing another angle of the first embodiment of the appearance component according to the present invention;

[0023] Figure 3 A top view of a first embodiment of an appearance component according to the present invention is shown;

[0024] Figure 4 A side view showing a first embodiment of an appearance component according to the present invention;

[0025] Figure 5 It shows a front view of a first embodiment of an appearance component according to the present invention;

[0026] Figure 6 shows an axonometric view of a second embodiment of an appearance component according to the present invention;

[0027] Figure 7 A top view showing a second embodiment of an appearance component according to the present invention;

[0028] Figure 8 A front view showing a second embodiment of an appearance component according to the present invention;

[0029] Figure 9 A cross-sectional view showing a second embodiment of an appearance component according to the present invention; and

[0030] Figure 10A side view showing a second embodiment of an appearance component according to the present invention is shown.

[0031] The above drawings include the following reference numerals:

[0032] 10. First plate body; 11. First end face; 12. Second end face; 13. First plate segment; 14. Second plate segment; 15. Third plate segment; 20. Second plate body; 21. Third end face; 22. Fourth end face; 23. Fourth plate segment; 24. Fifth plate segment; 25. Sixth plate segment; 30. Feed channel; 31. Gate; 40. Feed molding area; 50. Weld line. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] The present invention provides an appearance component, please refer to Figures 1 to 10The appearance component is a spray-free injection molded part, which includes a first plate body 10 and a second plate body 20. One end of the first plate body 10 is connected to one end of the second plate body 20. The first plate body 10 and the second plate body 20 are arranged at a preset angle, which is greater than 0 degrees and less than 180 degrees. The first plate body 10 has a first end face 11 and a second end face 12 that are opposite to each other, and the second plate body 20 has a third end face 21 and a fourth end face 22 that are opposite to each other. The appearance component has an appearance surface and a non-appearance surface. The first end face 11 and / or the second end face 12 are opposite to each other. The end face 12 is an appearance surface, the third end face 21 and the fourth end face 22 are non-appearance surfaces, and the non-appearance surfaces have at least one feed molding area 40 corresponding to one end of the feed channel 30 of the mold; or, the first end face 11 and / or the second end face 12 are appearance surfaces, the third end face 21 and / or the fourth end face 22 are appearance surfaces, and the non-appearance surfaces have one or two feed molding areas 40 corresponding to one end of the feed channel 30 of the mold; wherein each appearance surface is filled and molded by the melt flowing out of one feed channel 30.

[0037] The appearance component of the present invention is manufactured using spray-free technology. The appearance component is an injection-molded product made of a spray-free material. When the first end face 11 and / or the second end face 12 are appearance surfaces, and the third end face 21 and the fourth end face 22 are non-appearance surfaces, the non-appearance surfaces have at least one feed molding area 40 corresponding to one end of the mold's feed channel 30. When the first end face 11 and / or the second end face 12 are appearance surfaces, and the third end face 21 and / or the fourth end face 22 are appearance surfaces, the non-appearance surfaces have one or two feed molding areas 40 corresponding to one end of the mold's feed channel 30. Furthermore, each appearance surface is filled with melt from only one feed channel 30. This arrangement prevents multiple melt streams from flowing through the same appearance surface, forming weld marks on that surface, thereby resolving the problem of appearance defects that are easily generated in spray-free injection molded parts.

[0038] Among them, spray-free injection molded parts have unique light and shadow effects and metallic luster after molding, and can achieve an appearance effect comparable to or better than spraying without secondary processing. This technology has the advantages of excellent functionality, low cost, and environmental protection.

[0039] It should be noted that when a mold is used to injection mold an exterior component, the mold cavity is used to mold the exterior component, and the feed channel 30 is connected to the cavity. The material in the feed channel 30 forms a feed molding portion, and the area where the exterior component and the feed molding portion are connected is the feed molding area 40. The "feed molding area 40 corresponding to one end of the mold's feed channel 30" means that the feed molding area 40 corresponds to the opening at one end of the feed channel 30, and the feed molding area 40 and the opening at one end of the feed channel 30 have the same shape and size.

[0040] It should be noted that when the appearance components are applied to household appliances, the appearance surface is an integral part of the appearance of the household appliance, that is, the appearance surface is the surface exposed in the application environment and can be seen by the user; the non-appearance surface is located inside the household appliance, that is, the non-appearance surface is the surface hidden inside the household appliance and cannot be seen by the user.

[0041] Specifically, the first plate body 10 further includes a first circumferential sidewall disposed between the first and second end faces; the second plate body 20 further includes a second circumferential sidewall disposed between the third and fourth end faces. When the first, second, third, and fourth end faces are all exterior surfaces, at least a portion of the first circumferential sidewall and / or at least a portion of the second circumferential sidewall are non-exterior surfaces. In other cases, except when the first, second, third, and fourth end faces are all exterior surfaces, at least a portion of the first circumferential sidewall and at least a portion of the second circumferential sidewall can be either a non-exterior surface or an exterior surface.

[0042] In this embodiment, the feed molding zone 40 is located in the middle of the first plate 10 along its length, or in the middle of the second plate 20 along its length. The placement of the feed molding zone 40 in the middle of the first plate 10 or the middle of the second plate 20 is intended to balance the flow and pressure of the melt, ensuring that the melt reaches and fills both panel sections almost simultaneously. This facilitates the formation of a symmetrical fountain flow, minimizing appearance defects, and the pressure balance helps control part warping.

[0043] In this embodiment, the first plate body 10 includes a first plate segment 13, a second plate segment 14, and a third plate segment 15 connected in sequence along its first extension direction. The first plate segment 13, the second plate segment 14, and the third plate segment 15 have equal widths along the first extension direction, and the feed molding zone 40 is located on the second plate segment 14. The first extension direction is parallel to the length direction of the feed molding zone 40. Alternatively, the second plate body 20 includes a fourth plate segment 23, a fifth plate segment 24, and a sixth plate segment 25 connected in sequence along its second extension direction. The fourth plate segment 23, the fifth plate segment 24, and the sixth plate segment 25 have equal widths along the second extension direction, and the feed molding zone 40 is located on the fifth plate segment 24. The second extension direction is parallel to the length direction of the feed molding zone 40. This arrangement further ensures balanced flow and pressure of the glue.

[0044] It should be noted that the first plate body 10 also has a third extension direction, the first extension direction and the third extension direction are perpendicular to each other, and both the first extension direction and the third extension direction are perpendicular to the thickness direction of the first plate body 10. In the third extension direction, the widths of the first plate segment 13 along the first extension direction are all equal, the widths of the second plate segment 14 along the first extension direction are all equal, and the widths of the third plate segment 15 along the first extension direction are all equal, i.e., the first plate segment 13, the second plate segment 14, and the third plate segment 15 are plate segments of equal width. Similarly, the second plate body 20 also has a fourth extension direction, the second extension direction and the fourth extension direction are perpendicular to each other, and both the second extension direction and the fourth extension direction are perpendicular to the thickness direction of the second plate body 20. In the fourth extension direction, the widths of the fourth plate segment 23 along the third extension direction are all equal, the widths of the fifth plate segment 24 along the third extension direction are all equal, and the widths of the sixth plate segment 25 along the third extension direction are all equal, i.e., the fourth plate segment 23, the fifth plate segment 24, and the sixth plate segment 25 are plate segments of equal width.

[0045] Preferably, the first plate 10 is symmetrically arranged relative to the first symmetrical plane, and the feed molding area 40 is symmetrically arranged relative to the first symmetrical plane; or, the second plate 20 is symmetrically arranged relative to the second symmetrical plane, and the feed molding area 40 is symmetrically arranged relative to the second symmetrical plane. Such an arrangement can better ensure flow balance and pressure balance during the injection of the glue.

[0046] In this embodiment, the flow distance of the melt from the feed molding area 40 to the exterior surface is greater than 5 mm. This arrangement prevents gate lines (also known as gate marks) from appearing on the exterior surface.

[0047] It should be noted that the flow distance of the melt from the feed molding zone 40 to the appearance surface is greater than 5 mm, that is, the minimum value of the maximum flow distance of the melt from the feed molding zone 40 to the appearance surface is greater than 5 mm.

[0048] In one embodiment, the feed channel 30 includes a gate 31, which is connected to the mold cavity of the mold, and the feed molding area 40 is arranged corresponding to the gate 31. Specifically, the length of the feed molding area 40 along its longitudinal direction is greater than or equal to 8 mm; and / or the width of the feed molding area 40 along its width direction ranges from 0.6 mm to 2 mm. The longitudinal direction of the feed molding area 40 is the width direction of the gate 31, that is, the direction perpendicular to the mold opening direction of the mold; the width direction of the feed molding area 40 is the thickness direction of the gate 31, that is, the mold opening direction of the mold. Such an arrangement can ensure that the melt flows at a low flow rate.

[0049] It should be noted that the value range between 0.6 mm and 2 mm includes the value of 0.6 mm and the value of 2 mm.

[0050] In another embodiment, the feed channel 30 includes a gate 31 and a transition feed channel. The gate 31 communicates with the mold cavity via the transition feed channel, and the feed molding area 40 is disposed corresponding to an opening at one end of the transition feed channel. The feed molding area 40 includes a transition structure formed by the transition feed channel, the transition structure having a gate molding area corresponding to the gate 31. Alternatively, the feed molding area 40 is formed by removing the transition structure. Specifically, the gate mark appears on the transition structure formed by the material in the transition feed channel, but does not appear on the exterior surface of the exterior component.

[0051] In this embodiment, the length of the appearance component in any extending direction is less than or equal to 400 mm. Such a configuration can avoid appearance defects such as flow marks, weld marks, and gate marks on the appearance surface.

[0052] In this embodiment, the first plate body 10 includes a first plate segment 13, a second plate segment 14, and a third plate segment 15, which are connected in sequence. The first end of the second plate segment 14 is connected to the first plate segment 13, and the second end of the second plate segment 14 is connected to the third plate segment 15. The second plate segment 14 is provided with a feed molding area 40. The thickness of the second plate segment 14 gradually decreases from the feed molding area 40 to the first end, and the thickness of the second plate segment 14 gradually decreases from the feed molding area 40 to the second end. The thickness of the end of the first plate segment 13 connected to the first end is equal to the thickness of the first end and is the maximum thickness of the first plate segment 13. The thickness of the end of the third plate segment 15 connected to the second end is equal to the thickness of the second end and is the maximum thickness of the third plate segment 15. This arrangement ensures that the middle position obtains a more preferential flow sequence, achieving fountain flow and reducing appearance defects.

[0053] In this embodiment, the second plate body 20 includes a fourth plate segment 23, a fifth plate segment 24, and a sixth plate segment 25, which are connected in sequence. The first connection end of the fifth plate segment 24 is connected to the fourth plate segment 23, and the second connection end of the fifth plate segment 24 is connected to the sixth plate segment 25. The fifth plate segment 24 is provided with a feed molding area 40. The thickness of the fifth plate segment 24 gradually decreases from the feed molding area 40 to the first connection end, and the thickness of the fifth plate segment 24 gradually decreases from the feed molding area 40 to the second connection end. The thickness of the end of the fourth plate segment 23 connected to the first connection end is equal to the thickness of the first connection end and is the maximum thickness of the fourth plate segment 23. The thickness of the end of the sixth plate segment 25 connected to the second connection end is equal to the thickness of the second connection end and is the maximum thickness of the sixth plate segment 25. This arrangement ensures that the intermediate position obtains a more preferential flow sequence, achieving fountain flow and reducing appearance defects.

[0054] In this embodiment, the exterior components are made of a spray-free material, which includes a base material and particles distributed within the base material. The base material is a thermoplastic polymer, and the particles are one or more of metal particles, pearlescent powder, and fibers. The inclusion of these particles in the spray-free material imparts a unique light and shadow effect and metallic luster to the injection molded parts after molding, achieving an appearance comparable to or superior to that of a spray-painted product without requiring secondary processing.

[0055] Optionally, the metal particles are aluminum or copper.

[0056] Optionally, the fibers are nylon or natural fibers.

[0057] In this embodiment, the exterior surface is provided with a brushed pattern, and the direction of the brushed pattern is parallel to the flow direction of the melt. If flow marks appear on the exterior surface, the direction of the flow marks is the same as the flow direction. The direction of the brushed pattern is parallel to the flow direction of the melt, so that the flow marks will be obscured by the brushed pattern, thus covering the flow marks.

[0058] 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.

[0059] In this embodiment, the first end face 11 and the third end face 21 are transitionally connected by a first fillet, the radius of the first fillet is greater than or equal to 3 times the thickness of the first plate body 10 and the radius of the first fillet is greater than or equal to 3 times the thickness of the second plate body 20; wherein, the thickness of the first plate body 10 is the average thickness of the first plate body 10 or a median value of the thickness, and the thickness of the second plate body 20 is the average thickness of the second plate body 20 or a median value of the thickness.

[0060] In this embodiment, the second end face 12 and the fourth end face 22 are transitionally connected by a second fillet, and the radius of the second fillet is greater than or equal to 3 times the thickness of the first plate body 10 and the radius of the second fillet is greater than or equal to 3 times the thickness of the second plate body 20; wherein, the thickness of the first plate body 10 is the average thickness of the first plate body 10 or a median value of the thickness, and the thickness of the second plate body 20 is the average thickness of the second plate body 20 or a median value of the thickness.

[0061] Optionally, the appearance component is an L-shaped structure or a V-shaped structure.

[0062] In specific implementation, since the two exterior surfaces are filled with melts from two feed channels respectively, the weld line 50 of the two melts is located along the connecting edge of the two exterior surfaces and does not appear on the exterior surfaces.

[0063] In other embodiments, the exterior surface has a first feed molding area. Because gate marks are generated in the first feed molding area, the exterior component uses a label, silk screen printing, laser engraving, or other means to cover or de-emphasize the first feed molding area. The first feed molding area and the feed molding area are created on the exterior component using the same implementation method.

[0064] In other embodiments, the exterior surface has flow marks, and the flow marks on the exterior surface are covered or faded by using decorative concave and convex marks, sunburst patterns, labels, silk screen printing, laser engraving, etc.

[0065] In other embodiments, the exterior surface has a weld line, and the weld line on the exterior surface is covered or faded by using decorative embossed marks, sunburst patterns, labels, silk screen printing, laser engraving, etc.

[0066] The present invention further provides a household appliance, comprising an appearance component, wherein an appearance surface of the appearance component forms at least a portion of the appearance surface of the household appliance, wherein the appearance component is the appearance component in the above embodiment.

[0067] The present invention further provides a mold having a cavity for forming the appearance component in the above embodiment. The mold further has a feed channel 30 , one end of which is connected to the cavity.

[0068] In this embodiment, the gate 31 of the feed channel 30 is a fan-shaped gate. Such a setting can ensure that the melt flows at a low flow rate and is easy to remove the gate molding part.

[0069] Specifically, the end of the gate 31 that communicates with the mold cavity has a first communication port, which corresponds to the feed molding area 40. The width of the gate 31 is greater than or equal to 8 mm, and the thickness of the gate 31 is within a range of 0.6 mm to 2 mm. The thickness of the gate 31 is the direction of mold opening, and the width of the gate 31 is perpendicular to the mold opening direction. It should be noted that the range of 0.6 mm to 2 mm includes values ​​of 0.6 mm and 2 mm.

[0070] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0071] The appearance component of the present invention is manufactured using spray-free technology. The appearance component is an injection-molded product made of a spray-free material. When the first end face 11 and / or the second end face 12 are appearance surfaces, and the third end face 21 and the fourth end face 22 are non-appearance surfaces, the non-appearance surfaces have at least one feed molding area 40 corresponding to one end of the mold's feed channel 30. When the first end face 11 and / or the second end face 12 are appearance surfaces, and the third end face 21 and / or the fourth end face 22 are appearance surfaces, the non-appearance surfaces have one or two feed molding areas 40 corresponding to one end of the mold's feed channel 30. Furthermore, each appearance surface is filled with melt from only one feed channel 30. This arrangement prevents multiple melt streams from flowing through the same appearance surface, forming weld marks on that surface, thereby resolving the problem of appearance defects that are easily generated in spray-free injection molded parts.

[0072] 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.

[0073] For ease of description, spatially relative terms such as "above," "above," "on the upper surface of," and "upper" 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 these spatially relative terms are intended to encompass different orientations of the device during use or operation in addition to the orientation depicted in the figures. For example, if a device in a drawing is inverted, a device described as "above" or "on top of" another device or feature would then be positioned "below" or "beneath" the other device or feature. Thus, the exemplary term "above" could encompass both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative terms used herein should be interpreted accordingly. The foregoing descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations of the present invention are readily apparent to those skilled in the art. Any modifications, equivalent substitutions, improvements, and the like that fall within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

[0074] 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. An appearance component, characterized in that: The appearance component is a spray-free injection molded part, comprising a first plate body (10) and a second plate body (20), one end of the first plate body (10) is connected to one end of the second plate body (20), and a preset angle is formed between the first plate body (10) and the second plate body (20), wherein the preset angle is greater than 0 degrees and less than 180 degrees; the first plate body (10) has a first end face (11) and a second end face (12) that are arranged opposite to each other, and the second plate body (20) has a third end face (21) and a fourth end face (22) that are arranged opposite to each other; the appearance component has an appearance surface and a non-appearance surface; The first end surface (11) and / or the second end surface (12) are the appearance surfaces, the third end surface (21) and the fourth end surface (22) are both the non-appearance surfaces, and the non-appearance surfaces have at least one feed molding area (40) corresponding to one end of the feed channel (30) of the mold; or The first end surface (11) and / or the second end surface (12) are the appearance surfaces, the third end surface (21) and / or the fourth end surface (22) are the appearance surfaces, and the non-appearance surface has one or two feed molding areas (40) corresponding to one end of the feed channel (30) of the mold; Wherein, each of the appearance surfaces is filled and formed by the melt flowing out of one of the feed channels (30); The first end surface (11) and the third end surface (21) are transitionally connected via a first fillet, wherein the radius of the first fillet is greater than or equal to 3 times the thickness of the first plate body (10) and the radius of the first fillet is greater than or equal to 3 times the thickness of the second plate body (20); The second end face (12) and the fourth end face (22) are transitionally connected via a second fillet, the radius of the second fillet being greater than or equal to three times the thickness of the first plate body (10) and the radius of the second fillet being greater than or equal to three times the thickness of the second plate body (20); The two appearance surfaces are respectively filled with melt from the two feed channels (30), and the weld line (50) of the two melts is located along the connecting edge of the two appearance surfaces and does not appear on the appearance surfaces.

2. The appearance component according to claim 1, characterized in that: Along the length direction of the feed forming zone (40), the feed forming zone (40) is arranged in the middle of the first plate body (10); or Along the length direction of the feed forming area (40), the feed forming area (40) is arranged in the middle of the second plate body (20).

3. The appearance component according to claim 1, characterized in that: The first plate body (10) has a first plate segment (13), a second plate segment (14) and a third plate segment (15) connected in sequence along its first extension direction, the first plate segment (13), the second plate segment (14) and the third plate segment (15) have the same width along the first extension direction, and the feed forming zone (40) is arranged on the second plate segment (14); wherein the first extension direction is parallel to the length direction of the feed forming zone (40); or The second plate body (20) has a fourth plate segment (23), a fifth plate segment (24) and a sixth plate segment (25) connected in sequence along a second extension direction, the fourth plate segment (23), the fifth plate segment (24) and the sixth plate segment (25) have equal widths along the second extension direction, and the feed forming area (40) is arranged on the fifth plate segment (24); wherein the second extension direction is parallel to the length direction of the feed forming area (40).

4. The appearance component according to claim 1, characterized in that: The first plate (10) is symmetrically arranged relative to a first symmetrical plane, and the feeding and forming area (40) is symmetrically arranged relative to the first symmetrical plane; or The second plate body (20) is symmetrically arranged relative to the second symmetrical plane, and the feeding and forming area (40) is symmetrically arranged relative to the second symmetrical plane.

5. The appearance component according to any one of claims 1 to 4, characterized in that: The flow distance of the melt from the feed molding zone (40) to the appearance surface is greater than 5 mm.

6. The appearance component according to any one of claims 1 to 4, characterized in that: The feed channel (30) includes a gate (31), the gate (31) is connected to the cavity of the mold, and the feed molding area (40) is arranged corresponding to the gate (31); or The feed channel (30) includes a gate (31) and a transition feed channel, the gate (31) is connected to the cavity of the mold through the transition feed channel, and the feed molding area (40) is arranged corresponding to the opening at one end of the transition feed channel; wherein, the feed molding area (40) is provided with a transition structure formed by the transition feed channel, and the transition structure has a gate molding area corresponding to the gate (31); or, the feed molding area (40) is an area formed after cutting off the transition structure.

7. The appearance component according to any one of claims 1 to 4, characterized in that: The feed channel (30) includes a gate (31), the gate (31) is connected to the cavity of the mold, and the feed molding area (40) is arranged corresponding to the gate (31); The length of the feed forming zone (40) along its longitudinal direction is greater than or equal to 8 mm; and / or, The width of the feed forming zone (40) along its width direction ranges from 0.6 mm to 2 mm.

8. The appearance component according to any one of claims 1 to 4, characterized in that: The length of the appearance component in any extending direction thereof is less than or equal to 400 mm.

9. The appearance component according to claim 1, characterized in that: The first plate body (10) comprises a first plate segment (13), a second plate segment (14), and a third plate segment (15) connected in sequence, a first end of the second plate segment (14) being connected to the first plate segment (13), a second end of the second plate segment (14) being connected to the third plate segment (15), and the second plate segment (14) being provided with the feed molding area (40); The thickness of the second plate segment (14) gradually decreases in the direction from the feed forming zone (40) to the first end; the thickness of the second plate segment (14) gradually decreases in the direction from the feed forming zone (40) to the second end; the thickness of the end of the first plate segment (13) connected to the first end is equal to the thickness of the first end and is the maximum thickness of the first plate segment (13); the thickness of the end of the third plate segment (15) connected to the second end is equal to the thickness of the second end and is the maximum thickness of the third plate segment (15); and / or, The second plate body (20) comprises a fourth plate segment (23), a fifth plate segment (24), and a sixth plate segment (25) connected in sequence, a first connecting end of the fifth plate segment (24) being connected to the fourth plate segment (23), a second connecting end of the fifth plate segment (24) being connected to the sixth plate segment (25), and the fifth plate segment (24) being provided with the feed molding area (40); The thickness of the fifth plate segment (24) gradually decreases in the direction from the feed molding area (40) to the first connecting end, and the thickness of the fifth plate segment (24) gradually decreases in the direction from the feed molding area (40) to the second connecting end; the thickness of the end of the fourth plate segment (23) connected to the first connecting end is equal to the thickness of the first connecting end and is the maximum thickness of the fourth plate segment (23); the thickness of the end of the sixth plate segment (25) connected to the second connecting end is equal to the thickness of the second connecting end and is the maximum thickness of the sixth plate segment (25).

10. The appearance component according to any one of claims 1 to 4, characterized in that: The exterior surface is provided with a drawing pattern, and the extending direction of the drawing pattern is parallel to the flow direction of the melt.

11. A household appliance comprising an appearance component, wherein an appearance surface of the appearance component forms at least a portion of the appearance surface of the household appliance, wherein: The exterior component is the exterior component according to any one of claims 1 to 10.

12. A mold, characterized in that: The mold has a mold cavity for forming the appearance component according to any one of claims 1 to 10, and the mold further has a feed channel (30), one end of which is connected to the mold cavity.

13. The mold according to claim 12, characterized in that The appearance component is the appearance component described in claim 7, and the gate (31) of the feed channel (30) is a fan-shaped gate.

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