Appearance component, household appliance and mold

By designing the gate molding area close to the mating edge in the appearance components, the problem of appearance defects in paint-free injection molded parts is solved, ensuring that the weld line is located on the mating edge and achieving a high-quality appearance effect.

CN116408941BActive Publication Date: 2025-11-21GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202111679968.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-12-31
Publication Date
2025-11-21
Estimated Expiration
2041-12-31

AI Technical Summary

Technical Problem

In the existing technology, paint-free injection molded parts are prone to appearance defects such as flow marks, weld lines, and gate marks during the injection molding process. The location and extent of these defects are difficult to predict, resulting in poor consistency.

Method used

Design an appearance component in which the appearance surface and non-appearance surface are arranged adjacent to each other. The gate forming area is arranged at intervals on the non-appearance surface and close to the mating edge to ensure that the weld line is located on the mating edge. The injection molten metal enters the appearance surface through the gate forming area for injection molding.

Benefits of technology

This effectively avoids the formation of weld lines on the surface by multiple melt streams, improving the aesthetics and consistency of the parts and achieving a high-quality appearance for paint-free injection molded parts.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN116408941B_ABST
    Figure CN116408941B_ABST
Patent Text Reader

Abstract

The application provides an appearance component, a household appliance and a mold. The appearance component is a spray-free injection molding part. An outer surface of the appearance component comprises at least one appearance surface and a first non-appearance surface adjacent to the at least one appearance surface. The first non-appearance surface has a plurality of gate forming areas corresponding to gates of the mold. The plurality of gate forming areas are arranged at intervals on the first non-appearance surface. At least one gate forming area of the plurality of gate forming areas is closer to the joint edge of the at least one appearance surface and the first non-appearance surface than the other gate forming areas. The application effectively solves the problem that the spray-free injection molding part is prone to appearance defects in the prior art.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of household appliances, in particular to an appearance component, a household appliance and a mold. BACKGROUND

[0002] At present, household appliances usually adopt a spraying process to perform surface treatment on injection molded parts to realize the improvement of various colors and appearance textures and to cover part of appearance defects, but there are problems of high cost and environmental pollution. Therefore, a spray-free technology can be adopted to replace and compensate for the spraying process problems, and the injection molded part of the spray-free material has unique light and shadow effects and metal luster after molding, and can achieve appearance effects comparable to or better than spraying without secondary treatment. The technology has advantages of excellent function, low cost, environmental protection and the like.

[0003] However, the spray-free material is prone to appearance defects such as flow marks, weld marks and gate marks during injection molding, and the position or degree of occurrence is difficult to predict, with poor consistency. SUMMARY

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

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an appearance component is provided, the appearance component is a spray-free injection molded part, and an outer surface of the appearance component comprises: at least one appearance surface; a first non-appearance surface, which is arranged adjacent to the at least one appearance surface, the first non-appearance surface has a gate forming area corresponding to a gate of a mold, the gate forming area is multiple, and the multiple gate forming areas are arranged at intervals on the first non-appearance surface; wherein at least one gate forming area of the multiple gate forming areas is close to an abutting edge of the at least one appearance surface and the first non-appearance surface relative to other gate forming areas.

[0006] Further, the gate forming area close to the appearance surface relative to other gate forming areas has a preset distance from the abutting edge, and the preset distance is greater than or equal to 5 mm.

[0007] Further, the outer surface of the appearance component further comprises at least one second non-appearance surface.

[0008] Further, the appearance surface is two, the multiple gate forming areas comprise a first gate forming area and a second gate forming area, the first gate forming area is close to an abutting edge of one appearance surface and the first non-appearance surface relative to other gate forming areas, and the second gate forming area is close to an abutting edge of the other appearance surface and the first non-appearance surface relative to other gate forming areas.

[0009] Further, the two appearance surfaces are arranged adjacent to each other, and the first non-appearance surface is arranged adjacent to both of the two appearance surfaces.

[0010] Further, the first non-appearance surface is located between the two appearance surfaces, and the first non-appearance surface is a quadrilateral plane; wherein, along the length direction and the width direction of the quadrilateral plane, the first gate forming area and the second gate forming area are staggered.

[0011] Further, the appearance surface is three, and the first non-appearance surface is arranged adjacent to the three appearance surfaces.

[0012] Further, the first non-appearance surface further has a mounting recess portion which is in communication with each other, and the plurality of gate forming areas are arranged around the mounting recess portion.

[0013] Further, the appearance component comprises: at least one first plate body, an outer surface of the first plate body being an appearance surface; a second plate body, an outer surface of the second plate body being a first non-appearance surface; at least one third plate body, an outer surface of the third plate body being a second non-appearance surface; wherein, the first plate body, the second plate body and the third plate body surround to form a mounting cavity; a thickness of a middle part of the first plate body is greater than a thickness of an outer edge of the first plate body; a length of the first plate body is less than or equal to 400 mm; and / or, a width of the first plate body is less than or equal to 400 mm.

[0014] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an appearance component is provided, the appearance component is a spray-free injection molding part, and an outer surface of the appearance component comprises: at least two adjacent appearance surfaces; a first non-appearance surface, which is arranged adjacent to the at least two appearance surfaces, the first non-appearance surface has a gate forming area corresponding to a gate of a mold, the gate forming area is a plurality of, and the plurality of gate forming areas are arranged at intervals on the first non-appearance surface; wherein, at least one gate forming area of the plurality of gate forming areas is close to a symmetry center line of the at least two adjacent appearance surfaces relative to other gate forming areas.

[0015] Further, the gate forming area which is close to the symmetry center line of the at least two adjacent appearance surfaces relative to other gate forming areas has a preset distance from an edge line of each appearance surface, and the preset distance is greater than or equal to 5 mm.

[0016] Further, the appearance component comprises: at least two adjacent first plate bodies, an outer surface of each first plate body being an appearance surface; a second plate body, an outer surface of the second plate body being a first non-appearance surface; wherein, the first plate body and the second plate body surround to form a mounting cavity; a thickness of a middle part of the first plate body is greater than a thickness of an outer edge of the first plate body.

[0017] Further, a length of the first plate body is less than or equal to 400 mm; and / or, a width of the first plate body is less than or equal to 400 mm.

[0018] According to another aspect of the present application, there is provided a household appliance comprising an appearance component, an appearance surface of the appearance component forming at least part of an appearance surface of the household appliance, the appearance component being the appearance component described above.

[0019] According to another aspect of the present application, there is provided a mold having a cavity for forming the appearance component described above, the mold further having a gate communicating with the cavity.

[0020] Further, the mold further has a buffer runner and a melt inlet, a first end of the buffer runner communicating with the melt inlet, the buffer runner communicating with the gate so that the injection melt flows through the melt inlet, the buffer runner and the gate in sequence before entering the cavity.

[0021] Further, the buffer runner comprises a first runner and a second runner communicating with each other, a first end of the first runner communicating with the melt inlet, a second end of the second runner communicating with the gate.

[0022] With the technical solution of the present application, the appearance component is made by using the spray-free technology, the appearance component is an injection molded product and is made of a spray-free material. The outer surface of the appearance component comprises at least one appearance surface and a first non-appearance surface, the first non-appearance surface is arranged adjacent to the at least one appearance surface, the first non-appearance surface has a plurality of gate forming areas corresponding to the gate of the mold, the plurality of gate forming areas are arranged at intervals on the first non-appearance surface. At least one of the plurality of gate forming areas is close to the abutting edge of the at least one appearance surface and the first non-appearance surface relative to the other gate forming areas. In this way, the above arrangement of the gate forming areas ensures that the weld line generated during the injection molding process is located on the abutting edge as much as possible, and the appearance surface has a gate forming area arranged corresponding thereto, the injection melt enters through the gate forming area and performs injection molding on the appearance surface corresponding thereto, thereby avoiding the formation of a weld mark on the appearance surface by the flow of multiple melts through the same appearance surface, and solving the problem of easy appearance defects on the spray-free injection molded part. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate embodiments of the present application and assist in

[0024] Figure 1 Fig. 1 shows a perspective structural schematic view of an embodiment one of the appearance component according to the present application;

[0025] Figure 2 Fig. 2 shows a perspective structural schematic view of another angle of the appearance component in Fig. 1; Figure 1

[0026] Figure 3 ​Fig. 2 shows a perspective structural schematic view of the appearance part according to the embodiment one of the present application from another angle;

[0027] Figure 4 Fig. 3 shows a perspective structural schematic view of the appearance part according to the embodiment one of the present application from another angle; Figure 3

[0028] Figure 5 Fig. 4 shows a perspective structural schematic view of the appearance part according to the embodiment two of the present application from another angle;

[0029] Figure 6 Fig. 5 shows a perspective structural schematic view of the appearance part according to the embodiment two of the present application from another angle; Figure 5

[0030] Figure 7 Fig. 6 shows a top view of the appearance part according to the embodiment two of the present application; Figure 5

[0031] Figure 8 Fig. 7 shows a perspective structural schematic view of the appearance part according to the embodiment three of the present application from another angle;

[0032] Figure 9 Fig. 8 shows a perspective structural schematic view of the appearance part according to the embodiment three of the present application from another angle; Figure 8

[0033] Figure 10 Fig. 9 shows a perspective structural schematic view of the appearance part according to the embodiment three of the present application from another angle. Figure 8

[0034] Wherein, the above figures include the following reference signs:

[0035] 11, appearance surface; 12, first non-appearance surface; 121, mounting recess; 13, gate forming area; 131, first gate forming area; 132, second gate forming area; 14, second non-appearance surface; 30, gate; 50, buffer runner; 51, first runner; 52, second runner; 60, melt inlet; 70, weld line. DETAILED DESCRIPTION

[0036] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled in the art to which the present application belongs, unless otherwise specified.

[0038] ​​​​​In the present application, the orientation words such as "upper, lower" used without the opposite description are generally directed to the direction shown in the drawings or the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0039] In order to solve the problem that the appearance part of the spray-free injection molding part is prone to appearance defects in the prior art, the application provides an appearance part, a household appliance and a mold.

[0040] Embodiment one

[0041] As shown in Figure 1 and Figure 2 , the appearance part is a spray-free injection molding part, and the outer surface of the appearance part includes at least one appearance surface 11 and a first non-appearance surface 12. The first non-appearance surface 12 is arranged adjacent to the at least one appearance surface 11, and the first non-appearance surface 12 has a gate forming area 13 corresponding to the gate 30 of the mold. The gate forming area 13 is multiple, and the multiple gate forming areas 13 are arranged at intervals on the first non-appearance surface 12. Among them, at least one gate forming area 13 of the multiple gate forming areas 13 is close to the abutting edge of the at least one appearance surface 11 and the first non-appearance surface 12 relative to other gate forming areas 13.

[0042] The technical scheme of the present embodiment is applied, the appearance part is made of spray-free technology, the appearance part is an injection molding product and is made of spray-free material. The outer surface of the appearance part includes at least one appearance surface 11 and a first non-appearance surface 12, the first non-appearance surface 12 is arranged adjacent to the at least one appearance surface, and the first non-appearance surface 12 has a gate forming area 13 corresponding to the gate 30 of the mold. The gate forming area 13 is multiple, and the multiple gate forming areas 13 are arranged at intervals on the first non-appearance surface 12. Among them, at least one gate forming area 13 of the multiple gate forming areas 13 is close to the abutting edge of the at least one appearance surface 11 and the first non-appearance surface 12 relative to other gate forming areas 13. In this way, the above-mentioned setting of the gate forming area 13 ensures that the fusion line generated during injection molding is located on the abutting edge as much as possible, and the appearance surface 11 has a gate forming area 13 arranged corresponding thereto, and the injection melt enters the appearance surface 11 corresponding thereto through the gate forming area 13 and performs injection molding on the appearance surface 11 corresponding thereto, thereby avoiding the formation of fusion marks on the appearance surface by multiple melt flows through the same appearance surface, and solving the problem that the spray-free injection molding part is prone to appearance defects.

[0043] It should be noted that when the appearance part is molded by using a mold, a cavity of the mold is used to form the appearance part, a gate 30 (also called a pouring gate) is communicated with the cavity, and material in the gate 30 will form a gate forming part, and the area where the appearance part is connected with the gate forming part is the gate forming area 13.

[0044] It should be noted that when the appearance part is applied to a household appliance, the appearance surface 11 is a component of the appearance of the household appliance, that is, the appearance surface 11 is a surface exposed to the application environment and can be seen by the user; the first non-appearance surface 12 and the second non-appearance surface 14 are located inside the household appliance, that is, the first non-appearance surface 12 and the second non-appearance surface 14 are surfaces hidden inside the household appliance and cannot be seen by the user.

[0045] The appearance part in the present application is made by using a spray-free technology. The appearance part is an injection molded product and is made of a spray-free material. The spray-free injection molded part has a unique light and shadow effect and a metallic luster after molding. Without secondary treatment, the appearance effect can be comparable to or better than that of spraying. This technology has advantages of excellent function, low cost, environmental protection, etc.

[0046] In the present embodiment, the outer surface of the appearance part further includes at least one second non-appearance surface 14, the appearance surface 11 is one, the first non-appearance surface 12 is one, the gate forming area 13 is three, and the three gate forming areas 13 are arranged at intervals on the first non-appearance surface 12. Among them, one of the three gate forming areas 13 is close to the butt joint edge of the appearance surface 11 and the first non-appearance surface 12 relative to the other gate forming areas 13.

[0047] In the present embodiment, the gate forming area 13 close to the appearance surface 11 relative to the other gate forming areas 13 has a preset distance from the butt joint edge, and the preset distance is greater than or equal to 5 mm. In this way, the above setting ensures that there is no glue inlet mark on the appearance surface 11 to produce appearance defects, and the appearance degree of the appearance part is improved.

[0048] As shown in Figure 1 and Figure 2 The first non-appearance surface 12 also has a mounting recess 121 that is communicated with each other, and a plurality of gate forming areas 13 are arranged around the mounting recess 121. In this way, the mounting recess 121 is used to mount a filter element and the like structure, and the appearance part protects the filter element and the like structure. At the same time, the above setting makes the partition on the first non-appearance surface 12 more reasonable, so as to concentrate the glue inlet mark at the mounting recess 121 as much as possible.

[0049] Optionally, the appearance component comprises at least one first plate body, a second plate body and at least one third plate body. An outer surface of the first plate body is the appearance surface 11. An outer surface of the second plate body is the first non-appearance surface 12. An outer surface of the third plate body is the second non-appearance surface 14. The first plate body, the second plate body and the third plate body surround to form the mounting cavity. The thickness of the middle part of the first plate body is greater than the thickness of the outer edge of the first plate body. In this way, the above-mentioned arrangement makes the appearance component in the form of a shell to cover and protect the structure arranged inside it. At the same time, the above-mentioned thickness arrangement of the first plate body ensures that the middle position obtains a more preferential flow timing, forms a fountain flow, and reduces appearance defects such as flow marks, gate marks and weld marks on the appearance surface.

[0050] Optionally, the length of the first plate body is less than or equal to 400 mm; and / or, the width of the first plate body is less than or equal to 400 mm.

[0051] As shown in Figure 1 and Figure 2 , the first plate body is one, so that the appearance component has one appearance surface 11.

[0052] In the embodiment, the appearance component is made of a spray-free material, which comprises 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, pearl powder and fibers.

[0053] Optionally, the metal particles are aluminum or copper.

[0054] Optionally, the fibers are nylon or natural fibers.

[0055] The application also provides a household appliance (not shown), which comprises an appearance component, an appearance surface 11 of the appearance component forms at least part of the appearance surface of the household appliance, and the appearance component is the above-mentioned appearance component.

[0056] Optionally, the household appliance is a water purifier body.

[0057] The application also provides a mold, which has a cavity for forming the above-mentioned appearance component, and the mold also has a gate 30 which is in communication with the cavity.

[0058] As shown in Figure 2 , the mold also has a buffer flow channel 50 and a melt inlet 60, the first end of the buffer flow channel 50 is in communication with the melt inlet 60, and the buffer flow channel 50 is in communication with the gate 30, so that the injection melt flows into the cavity in sequence through the melt inlet 60, the buffer flow channel 50 and the gate 30. In this way, the buffer flow channel plays a role of rubber buffer, thereby prolonging the rubber freezing time.

[0059] In the embodiment, the buffer flow channels 50 are three, and the three buffer flow channels 50 are arranged in one-to-one correspondence with the three gate forming areas 13. Among them, two buffer flow channels are columnar, so that the gate 30 is columnar.

[0060] As shown in Figure 2 , one buffer flow channel 50 includes a first flow channel 51 and a second flow channel 52 that are in communication with each other, the end of the first flow channel 51 away from the second flow channel 52 is in communication with the melt inlet 60, and the end of the second flow channel 52 away from the first flow channel 51 is in communication with the gate 30. In this way, the above arrangement ensures that the injection molding melt can enter the gate forming area 13 in sequence via the first flow channel 51, the second flow channel 52 and the gate 30 to form the appearance part by injection molding.

[0061] Optionally, the first flow channel 51 and the second flow channel 52 are arranged at an angle.

[0062] Embodiment two

[0063] The appearance part in embodiment two is different from that in embodiment one in that the number of appearance surfaces 11 is different.

[0064] As shown in Figure 3 and Figure 4 , the appearance part is a spray-free injection molded part, and the outer surface of the appearance part includes at least two adjacent appearance surfaces 11 and a first non-appearance surface 12. The first non-appearance surface 12 is arranged adjacent to at least two appearance surfaces 11, and the first non-appearance surface 12 has a gate forming area 13 corresponding to the gate 30 of the mold, and the gate forming area 13 is multiple, and the multiple gate forming areas 13 are arranged at intervals on the first non-appearance surface 12. Among them, at least one gate forming area 13 of the multiple gate forming areas 13 is close to the center line of symmetry of the at least two adjacent appearance surfaces 11 relative to other gate forming areas 13.

[0065] Specifically, the above arrangement of the gate forming area 13 ensures that the weld line generated during injection molding is located on the butt joint edge as much as possible, and the appearance surface 11 has a gate forming area 13 arranged corresponding thereto, and the injection molding melt enters and injection molds the appearance surface 11 corresponding thereto through the gate forming area 13, thereby avoiding multiple melt flows through the same appearance surface to form a weld mark on the appearance surface, and solving the problem of easy appearance defects on the spray-free injection molded part.

[0066] In the embodiment, the appearance surface 11 is two, and the two appearance surfaces 11 are arranged adjacent to each other, and the first non-appearance surface 12 is arranged adjacent to the two appearance surfaces 11.

[0067] In the embodiment, the gate forming area 13 close to the center line of symmetry of the at least two adjacent appearance surfaces 11 has a preset distance between the edge line of each appearance surface 11, and the preset distance is greater than or equal to 5 mm. In this way, the above setting ensures that no glue inlet marks appear on the appearance surface 11 to cause appearance defects, and the appearance of the appearance part is improved.

[0068] As shown in Figure 4 , the appearance surface 11 is two, and the plurality of gate forming areas 13 include a first gate forming area and a second gate forming area. The first gate forming area is close to the butt joint edge of one appearance surface 11 and the first non-appearance surface 12 relative to other gate forming areas 13. The second gate forming area is close to the butt joint edge of the other appearance surface 11 and the first non-appearance surface 12 relative to other gate forming areas 13. In this way, the injection melt enters the first gate forming area and the second gate forming area respectively to perform injection molding on the respective corresponding appearance surface 11, thereby avoiding the flow of multiple melts through the same appearance surface to form a welding mark on the appearance surface, and solving the problem of appearance defects on the spray-free injection molded part.

[0069] Optionally, the appearance part includes at least two adjacent first plate bodies and second plate bodies. The outer surface of each first plate body is an appearance surface 11. The outer surface of the second plate body is a first non-appearance surface 12. The first plate body and the second plate body surround to form a mounting cavity. The thickness of the middle part of the first plate body is greater than the thickness of the outer edge of the first plate body. In this way, the above setting makes the appearance part in the form of a shell to cover and protect the structure arranged inside. At the same time, the above thickness setting of the first plate body ensures that the middle position obtains a more preferential flow timing to form a fountain flow, and reduces appearance defects such as flow marks, gate marks and welding marks on the appearance surface.

[0070] Optionally, the length of the first plate body is less than or equal to 400 mm; and / or, the width of the first plate body is less than or equal to 400 mm.

[0071] As shown in Figure 3 and Figure 4 , the first plate body is two to make the appearance part have two appearance surfaces 11.

[0072] As shown in Figure 3 , the welding line 70 is on the connecting edge along the two appearance surfaces 11, and does not appear on the appearance surface 11.

[0073] In the embodiment, the appearance part is a water purifier body.

[0074] Embodiment three

[0075] The appearance part in embodiment three is different from that in embodiment two in that the positional relationship of the two appearance surfaces 11 is different.

[0076] As shown in Figures 5 to 7 two, the plurality of gate forming areas 13 include a first gate forming area 131 and a second gate forming area 132, the first gate forming area 131 is close to the abutting edge of one of the appearance surfaces 11 and the first non-appearance surface 12 relative to other gate forming areas 13, and the second gate forming area 132 is close to the abutting edge of the other appearance surface 11 and the first non-appearance surface 12 relative to other gate forming areas 13. In this way, the injection melt respectively enters the first gate forming area 131 and the second gate forming area 132 to perform injection molding on the respective corresponding appearance surface 11, thereby avoiding the plurality of melt flows through the same appearance surface 11 to form a fusion mark on the appearance surface, and solving the problem of easy appearance defects on the spray-free injection molded part.

[0077] In the embodiment, the two appearance surfaces 11 are not adjacent. Specifically, the first non-appearance surface 12 is located between the two appearance surfaces 11, and the first non-appearance surface 12 is a quadrilateral plane. Among them, along the length direction and the width direction of the quadrilateral plane, the first gate forming area 131 and the second gate forming area 132 are staggered.

[0078] In the embodiment, the appearance part is a desktop water purifier body.

[0079] Embodiment Four

[0080] The appearance part in Embodiment Four is different from that in Embodiment Two in that the number of appearance surfaces 11 is different.

[0081] As shown in Figures 8 to 10 three, the first non-appearance surface 12 is adjacent to the three appearance surfaces 11. The gate forming area 13 is three, and the three gate forming areas 13 are correspondingly arranged with the three appearance surfaces 11, and the injection melt respectively enters each gate forming area 13 to perform injection molding on the respective corresponding appearance surface 11, thereby avoiding the plurality of melt flows through the same appearance surface 11 to form a fusion mark on the appearance surface, and solving the problem of easy appearance defects on the spray-free injection molded part.

[0082] As shown in Figure 8 and Figure 9 The fusion line 70 of the two melt flows is on the connecting edge along the two appearance surfaces 11, and does not appear on the appearance surface 11.

[0083] In the embodiment, the appearance part is a desktop water purifier body.

[0084] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0085] The appearance part is made by a spray-free technology, and is an injection molded product made of a spray-free material. The outer surface of the appearance part comprises at least one appearance surface, a first non-appearance surface and at least one second non-appearance surface, the first non-appearance surface is arranged adjacent to the at least one appearance surface, and the first non-appearance surface has a plurality of gate forming areas corresponding to gates of a mold, and the plurality of gate forming areas are arranged at intervals on the first non-appearance surface. At least one gate forming area of the plurality of gate forming areas is close to the joint edge of the at least one appearance surface and the first non-appearance surface relative to other gate forming areas. In this way, the above arrangement of the gate forming areas ensures that the welding lines generated during injection molding are located on the joint edge as much as possible, and the appearance surface has a gate forming area arranged corresponding thereto, and the injection melt enters and injects the appearance surface corresponding thereto through the gate forming area, thereby avoiding the formation of welding marks on the appearance surface by the flow of multiple melts through the same appearance surface, and solving the problem of easy appearance defects of the spray-free injection molded part.

[0086] Obviously, the above-described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work should belong to the scope of protection of the present application.

[0087] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0088] It should be noted that the terms "first", "second" and the like used in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0089] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An exterior component, characterized in that, The appearance component is a paint-free injection molded part, and the outer surface of the appearance component includes: At least one exterior surface (11); A first non-appearance surface (12) is disposed adjacent to at least one of the appearance surfaces (11). The first non-appearance surface (12) has a gate forming area (13) corresponding to the gate (30) of the mold. There are multiple gate forming areas (13), and the multiple gate forming areas (13) are spaced apart on the first non-appearance surface (12). Among them, at least one of the multiple gate forming areas (13) is closer to the mating edge of at least one of the outer surface (11) and the first non-outer surface (12) relative to the other gate forming areas (13); the gate forming area (13) that is closer to the outer surface (11) relative to the other gate forming areas (13) has a preset distance between itself and the mating edge, the preset distance being greater than or equal to 5mm.

2. The appearance component according to claim 1, characterized in that, The outer surface of the exterior component also includes at least one second non-exterior surface (14).

3. The appearance component according to claim 1, characterized in that, There are two exterior surfaces (11), and the plurality of gate forming areas (13) include a first gate forming area (131) and a second gate forming area (132). The first gate forming area (131) is closer to the mating edge of one of the exterior surfaces (11) and the first non-exterior surface (12) relative to the other gate forming areas (13), and the second gate forming area (132) is closer to the mating edge of another exterior surface (11) and the first non-exterior surface (12) relative to the other gate forming areas (13).

4. The appearance component according to claim 3, characterized in that, The two exterior surfaces (11) are arranged adjacent to each other, and the first non-exterior surface (12) is arranged adjacent to both exterior surfaces (11).

5. The appearance component according to claim 3, characterized in that, The first non-appearance surface (12) is located between the two appearance surfaces (11), and the first non-appearance surface (12) is a quadrilateral plane; wherein, along the length and width directions of the quadrilateral plane, the first gate forming area (131) and the second gate forming area (132) are staggered.

6. The appearance component according to claim 1, characterized in that, There are three exterior surfaces (11), and the first non-exterior surface (12) is arranged adjacent to all three exterior surfaces (11).

7. The appearance component according to claim 4 or 6, characterized in that, The first non-exterior surface (12) also has interconnected mounting recesses (121), and a plurality of the gate forming areas (13) are arranged around the mounting recesses (121).

8. The appearance component according to claim 2, characterized in that, The exterior components include: At least one first plate, the outer surface of the first plate being the appearance surface (11). The second plate, the outer surface of the second plate is the first non-appearance surface (12); At least one third plate, the outer surface of which is the second non-appearance surface (14). The first plate, the second plate, and the third plate surround each other to form a mounting cavity; the thickness of the middle part of the first plate is greater than the thickness at the outer edge of the first plate; the length of the first plate is less than or equal to 400 mm; and / or, the width of the first plate is less than or equal to 400 mm.

9. An exterior component, characterized in that, The appearance component is a paint-free injection molded part, and the outer surface of the appearance component includes: At least two adjacent exterior faces (11); The first non-appearance surface (12) is arranged adjacent to at least two appearance surfaces (11). The first non-appearance surface (12) has a gate forming area (13) corresponding to the gate (30) of the mold. There are multiple gate forming areas (13), and the multiple gate forming areas (13) are arranged at intervals on the first non-appearance surface (12). In this case, at least one of the multiple gate forming areas (13) is close to the center line of symmetry of at least two adjacent appearance surfaces (11) relative to the other gate forming areas (13).

10. The appearance component according to claim 9, characterized in that, The gate forming area (13) that is close to the symmetrical center line of at least two adjacent appearance surfaces (11) relative to the other gate forming areas (13) has a preset distance between the edge line of each of the appearance surfaces (11) and the preset distance is greater than or equal to 5 mm.

11. The appearance component according to claim 9, characterized in that, The exterior components include: At least two adjacent first plates, the outer surface of each first plate being the outer appearance surface (11). The second plate, the outer surface of the second plate is the first non-appearance surface (12); The first plate and the second plate surround each other to form a mounting cavity; the thickness of the middle part of the first plate is greater than the thickness of the outer edge of the first plate.

12. The appearance component according to claim 11, characterized in that, The length of the first plate is less than or equal to 400 mm; and / or the width of the first plate is less than or equal to 400 mm.

13. A household appliance, comprising an exterior component, wherein the exterior surface (11) of the exterior component forms at least a portion of the exterior surface of the household appliance, characterized in that, The exterior component is the exterior component as described in any one of claims 1 to 12.

14. A mold, characterized in that, The mold has a cavity for forming the appearance component according to any one of claims 1 to 12, and the mold also has a gate (30) that communicates with the cavity.

15. The mold according to claim 14, characterized in that, The mold also has a buffer runner (50) and a melt inlet (60). The first end of the buffer runner (50) is connected to the melt inlet (60), and the buffer runner (50) is connected to the gate (30) so that the injection molten material flows through the melt inlet (60), the buffer runner (50) and the gate (30) in sequence before entering the cavity.

16. The mold according to claim 15, characterized in that, The buffer channel (50) includes a first channel (51) and a second channel (52) that are connected to each other. The end of the first channel (51) away from the second channel (52) is connected to the melt inlet (60), and the end of the second channel (52) away from the first channel (51) is connected to the gate (30).

Citation Information

Patent Citations

  • Appearance part, household appliance and mold

    CN217098695U