CN116408941A

CN116408941A - Appearance part, household appliance and mold

Info

Publication number: CN116408941A
Application number: CN202111679968.8A
Authority: CN
Inventors: 李林仕; 龙云钲; 刘秋元; 江松; 阳涛; 李朝伟
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-07-11

Abstract

The invention provides an appearance part, a household appliance and a mold. Wherein, the outward appearance part is exempt from spraying injection molding, and the surface of outward appearance part includes: at least one appearance surface; the first non-appearance surface is arranged adjacent to at least one appearance surface, the first non-appearance surface is provided with a plurality of gate forming areas corresponding to gates of the mold, and the plurality of gate forming areas are arranged on the first non-appearance surface at intervals; at least one gate molding zone of the plurality of gate molding zones is close to the butt edge of at least one appearance surface and a first non-appearance surface relative to other gate molding zones. The invention effectively solves the problem that the spraying-free injection molding in the prior art is easy to generate appearance defects.

Description

Appearance part, household appliance and mold

Technical Field

The invention relates to the field of household appliances, in particular to an appearance part, a household appliance and a mold.

Background

At present, the household appliances generally adopt a spraying process to carry out surface treatment on injection molding parts so as to realize improvement of various colors and appearance textures, and can mask part of appearance defects, but the problems of high cost and environmental protection exist. Therefore, the spraying-free technology can be adopted to replace and make up the spraying process problem, and the injection molding part of the spraying-free material has unique light and shadow effect and metallic luster after being molded, and can achieve the appearance effect comparable to or better than spraying without secondary treatment. The technology has the advantages of excellent function, low cost, environmental protection and the like.

However, the spray-free material is very easy to have appearance defects such as flow marks, welding marks, gate marks and the like in the injection molding process, the occurrence position or degree is difficult to predict, and the consistency is poor.

Disclosure of Invention

The invention mainly aims to provide an appearance part, a household appliance and a mold, which are used for solving the problem that a spraying-free injection molding part in the prior art is easy to generate appearance defects.

In order to achieve the above object, according to one aspect of the present invention, there is provided an exterior part, which is a spray-free injection molded part, an exterior surface of the exterior part comprising: at least one appearance surface; the first non-appearance surface is arranged adjacent to at least one appearance surface, the first non-appearance surface is provided with a plurality of gate forming areas corresponding to gates of the mold, and the plurality of gate forming areas are arranged on the first non-appearance surface at intervals; at least one gate molding zone of the plurality of gate molding zones is close to the butt edge of at least one appearance surface and a first non-appearance surface relative to other gate molding zones.

Further, a preset distance is arranged between the gate forming area close to the appearance surface relative to other gate forming areas and the butt joint edge, and the preset distance is more than or equal to 5mm.

Further, the exterior surface of the appearance component further includes at least one second non-appearance surface.

Further, the appearance surfaces are two, the plurality of gate molding areas comprise a first gate molding area and a second gate molding area, the first gate molding area is close to the butt joint edge of one appearance surface and the first non-appearance surface relative to other gate molding areas, and the second gate molding area is close to the butt joint edge of the other appearance surface and the first non-appearance surface relative to other gate molding areas.

Further, the two appearance surfaces are adjacently arranged, and the first non-appearance surface and the two appearance surfaces are both arranged.

Further, the first non-appearance surface is positioned between the two appearance surfaces, and the first non-appearance surface is a quadrilateral plane; the first gate forming areas and the second gate forming areas are arranged in a staggered mode along the length direction and the width direction of the quadrilateral plane.

Further, the number of the appearance surfaces is three, and the first non-appearance surface and the three appearance surfaces are all arranged.

Further, the first non-exterior surface further has mounting recesses in communication with each other, and the plurality of gate molding regions are disposed around the mounting recesses.

Further, the appearance member includes: at least one first plate body, wherein the outer surface of the first plate body is an appearance surface; the outer surface of the second plate body is a first non-appearance surface; at least one third plate body, the outer surface of which is a second non-appearance surface; wherein, the first plate body, the second plate body and the third plate body form a mounting cavity in a surrounding way; the thickness of the middle part of the first plate body is larger than that of the outer edge of the first plate body; the length of the first plate body is smaller than or equal to 400mm; and/or the width of the first plate body is less than or equal to 400mm.

In order to achieve the above object, according to one aspect of the present invention, there is provided an exterior part, which is a spray-free injection molded part, an exterior surface of the exterior part comprising: at least two adjacent appearance surfaces; the first non-appearance surface is arranged on at least two appearance surfaces, the first non-appearance surface is provided with a plurality of sprue forming areas corresponding to the sprue of the mold, and the sprue forming areas are arranged on the first non-appearance surface at intervals; at least one gate molding zone of the plurality of gate molding zones is close to the symmetrical center line of at least two adjacent appearance surfaces relative to other gate molding zones.

Further, a preset distance is arranged between the gate molding area, which is close to the symmetrical center line of at least two adjacent appearance surfaces relative to other gate molding areas, and the edge line of each appearance surface, and the preset distance is more than or equal to 5mm.

Further, the appearance member includes: at least two adjacent first plate bodies, wherein the outer surface of each first plate body is an appearance surface; the outer surface of the second plate body is a first non-appearance surface; wherein the first plate body and the second plate body form a mounting cavity around; the thickness of the middle part of the first plate body is greater than the thickness at the outer edge of the first plate body.

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

According to another aspect of the present invention, there is provided a household appliance comprising an appearance member, an appearance surface of the appearance member forming at least part of an appearance surface of the household appliance, the appearance member being the appearance member described above.

According to another aspect of the present invention, there is provided a mold having a cavity for forming the above-described exterior part, the mold further having a gate in communication with the cavity.

Further, the mold is also provided with a buffer runner and a melt inlet, wherein the first end of the buffer runner is communicated with the melt inlet, and the buffer runner is communicated with the gate, so that injection molding melt sequentially flows through the melt inlet, the buffer runner and the gate and then enters the cavity.

Further, the buffer runner comprises a first runner and a second runner which are communicated with each other, one end of the first runner away from the second runner is communicated with the melt inlet, and one end of the second runner away from the first runner is communicated with the gate.

By applying the technical scheme of the invention, the appearance part is manufactured by adopting a spraying-free technology, is an injection molding product and is manufactured by adopting a spraying-free material. The exterior surface of the exterior part comprises at least one exterior surface and a first non-exterior surface, the first non-exterior surface is adjacent to the at least one exterior surface, the first non-exterior surface is provided with a plurality of sprue forming areas corresponding to the sprue of the mold, and the sprue forming areas are arranged on the first non-exterior surface at intervals. At least one gate molding zone of the plurality of gate molding zones is proximate to an interface of the at least one exterior surface and the first non-exterior surface relative to the other gate molding zones. Therefore, the welding line generated in the injection molding process is ensured to be positioned on the butt joint edge as much as possible by the arrangement of the gate forming area, the appearance surface is provided with the gate forming area which is correspondingly arranged, injection molding melt enters through the gate forming area and carries out injection molding on the appearance surface which corresponds to the injection molding melt, and further, the phenomenon that a plurality of melt flows through the same appearance surface to form welding marks on the appearance surface can be avoided, and the problem that appearance defects are easily generated on a spraying-free injection molding part is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment one of an appearance part according to the present invention;

fig. 2 shows a schematic perspective view of the appearance part of fig. 1 at another angle;

fig. 3 shows a schematic perspective view of a second embodiment of an appearance component according to the invention;

fig. 4 shows a schematic perspective view of another angle of the appearance part in fig. 3;

fig. 5 shows a schematic perspective view of a third embodiment of an appearance component according to the invention;

fig. 6 shows a schematic perspective view of another angle of the appearance part in fig. 5;

FIG. 7 shows a top view of the appearance component of FIG. 5;

fig. 8 shows a schematic perspective view of a fourth embodiment of an appearance component according to the invention;

fig. 9 is a schematic perspective view showing a first angle of the exterior part of fig. 8; and

fig. 10 shows a schematic perspective view of a second angle of the appearance part in fig. 8.

Wherein the above figures include the following reference numerals:

11. appearance surface; 12. a first non-exterior surface; 121. a mounting recess; 13. a gate molding zone; 131. a first gate molding zone; 132. a second gate molding zone; 14. a second non-exterior surface; 30. a gate; 50. a buffer flow channel; 51. a first flow passage; 52. a second flow passage; 60. a melt inlet; 70. and welding wires.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.

In order to solve the problem that the spraying-free injection molding in the prior art is easy to produce appearance defects, the application provides an appearance part, a household appliance and a mold.

Example 1

As shown in fig. 1 and 2, the exterior part is a spray-free injection molded part, and the exterior surface of the exterior part includes at least one exterior surface 11 and a first non-exterior surface 12. The first non-exterior surface 12 is provided adjacent to at least one exterior surface 11, the first non-exterior surface 12 has a plurality of gate molding regions 13 for corresponding to the gates 30 of the mold, and the plurality of gate molding regions 13 are provided at intervals on the first non-exterior surface 12. Wherein at least one gate molding region 13 of the plurality of gate molding regions 13 is adjacent to the butt edge of at least one exterior surface 11 and the first non-exterior surface 12 with respect to the other gate molding regions 13.

By applying the technical scheme of the embodiment, the appearance part is manufactured by adopting a spraying-free technology, is an injection molding product and is manufactured by adopting a spraying-free material. The outer surface of the exterior member includes at least one exterior surface 11 and a first non-exterior surface 12, the first non-exterior surface 12 is disposed adjacent to the at least one exterior surface, the first non-exterior surface 12 has a gate molding region 13 for corresponding to the gate 30 of the mold, the gate molding region 13 is plural, and the plural gate molding regions 13 are disposed at intervals on the first non-exterior surface 12. At least one gate molding region 13 of the plurality of gate molding regions 13 is located closer to the butt edge of the at least one exterior surface 11 and the first non-exterior surface 12 than the other gate molding regions 13. Like this, the aforesaid setting of runner shaping district 13 ensures that the welding line that produces in the injection molding process is located the butt joint edge as far as possible, and outward appearance face 11 has runner shaping district 13 rather than corresponding setting, and the fuse-element of moulding plastics gets into and moulds plastics rather than corresponding outward appearance face 11 through this runner shaping district 13, and then can avoid stranded fuse-element to flow through same outward appearance face and form the welding mark on this outward appearance face, has solved the problem that avoids producing outward appearance defect easily on the spraying injection molding.

When the appearance part is injection molded by using the mold, the cavity of the mold is used for molding the appearance part, the gate 30 (may also be called a gate) is communicated with the cavity, the material in the gate 30 forms a gate molding portion, and the area where the appearance part is connected to the gate molding portion is referred to as a gate molding area 13.

When the appearance component 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 that is exposed to an application environment and can be seen by a user; the first non-exterior surface 12 and the second non-exterior surface 14 are located inside the household appliance, i.e. the first non-exterior surface 12 and the second non-exterior surface 14 are surfaces hidden inside the household appliance and not seen by the user.

The appearance part in this application adopts and exempts from the spraying technique to make, and this appearance part is injection moulding goods and is made by exempting from the spraying material, exempts from to spray injection moulding spare have unique shadow effect and metallic luster after the shaping, can reach the appearance effect that compares favorably or surpass the spraying through not twice treatment, and this technique possesses advantages such as excellent function, low cost, environmental protection.

In this embodiment, the outer surface of the appearance member further includes at least one second non-appearance surface 14, one appearance surface 11, one first non-appearance surface 12, three gate molding areas 13, and three gate molding areas 13 disposed at intervals on the first non-appearance surface 12. Wherein, one gate molding region 13 of the three gate molding regions 13 is close to the butt edge of the appearance surface 11 and the first non-appearance surface 12 with respect to the other gate molding regions 13.

In the present embodiment, a predetermined distance is provided between the gate molding region 13 and the butt edge, which are close to the exterior surface 11 with respect to the other gate molding regions 13, and the predetermined distance is 5mm or more. Thus, the arrangement ensures that no glue inlet lines appear on the appearance surface 11 to generate appearance defects, thereby improving the appearance attractiveness of the appearance part.

As shown in fig. 1 and 2, the first non-exterior surface 12 further has mounting recesses 121 communicating with each other, and a plurality of gate molding regions 13 are provided around the mounting recesses 121. In this way, the mounting recess 121 is used for mounting a structure such as a filter cartridge, and the appearance member protects the structure such as the filter cartridge. Meanwhile, the above arrangement makes the partition on the first non-exterior surface 12 more reasonable, so that the glue inlet lines are concentrated at the mounting concave portion 121 as much as possible.

Optionally, the appearance component includes at least one first plate, a second plate, and at least one third plate. The outer surface of the first plate body is an appearance surface 11. The outer surface of the second plate body is a first non-exterior surface 12. The outer surface of the third plate body is a second non-exterior surface 14. The first plate body, the second plate body and the third plate body surround to form an installation cavity. The thickness of the middle part of the first plate body is greater than the thickness at the outer edge of the first plate body. In this way, the above arrangement makes the appearance member take a case shape to cover and protect the structure provided inside. Meanwhile, the thickness of the first plate body ensures that the middle position of the first plate body obtains a more preferential flow time sequence, fountain flow is formed, and appearance defects such as flow marks, gate marks, welding marks and the like on an appearance surface are reduced.

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

As shown in fig. 1 and 2, the first plate body is one so that the exterior member has one exterior surface 11.

In this embodiment, the exterior part is made of a spray-free material comprising a substrate and particles distributed within the substrate; wherein the base material is a thermoplastic polymer material; the particles are at least one of metal particles, pearl powder and fibers.

Optionally, the metal particles are aluminum or copper.

Alternatively, the fibers are nylon or natural fibers.

The present application also provides a household appliance (not shown), comprising an appearance part, the appearance surface 11 of which forms at least part of the appearance surface of the household appliance, the appearance part being the above-mentioned appearance part.

Optionally, the household appliance is a body of the water purifier.

The present application also provides a mold having a cavity for forming the above-described appearance component, the mold further having a gate 30, the gate 30 being in communication with the cavity.

As shown in fig. 2, the mold further has a buffer runner 50 and a melt inlet 60, wherein a first end of the buffer runner 50 is in communication with the melt inlet 60, and the buffer runner 50 is in communication with the gate 30, so that the injection molding melt flows through the melt inlet 60, the buffer runner 50 and the gate 30 in sequence and then enters the cavity. Therefore, the buffer runner plays a role in buffering the sizing material, and the freezing time of the sizing material is prolonged.

In the present embodiment, the number of the buffer flow passages 50 is three, and the three buffer flow passages 50 are provided in one-to-one correspondence with the three gate molding regions 13. Wherein the two buffer runners are columnar so that the gate 30 is columnar.

As shown in fig. 2, one buffer runner 50 includes a first runner 51 and a second runner 52 that are communicated with each other, an end of the first runner 51 remote from the second runner 52 is communicated with the melt inlet 60, and an end of the second runner 52 remote from the first runner 51 is communicated with the gate 30. In this way, the arrangement described above ensures that the injection molding melt can enter the gate molding zone 13 via the first flow passage 51, the second flow passage 52, and the gate 30 in order to form the exterior part by injection molding.

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

Example two

The exterior part in the second embodiment is different from the first embodiment in that: the number of appearance surfaces 11 is different.

As shown in fig. 3 and 4, the exterior part is a spray-free injection molded part, and the exterior surface of the exterior part includes at least two adjacent exterior surfaces 11 and a first non-exterior surface 12. The first non-exterior surface 12 is provided to each of the at least two exterior surfaces 11, the first non-exterior surface 12 has a plurality of gate molding regions 13 corresponding to the gates 30 of the mold, and the plurality of gate molding regions 13 are provided at intervals on the first non-exterior surface 12. Wherein at least one gate molding region 13 of the plurality of gate molding regions 13 is close to a symmetry center line of at least two adjacent appearance surfaces 11 with respect to the other gate molding regions 13.

Specifically, the above arrangement of the gate forming area 13 ensures that the welding line generated in the injection molding process is located on the butt joint edge as much as possible, and the appearance surface 11 is provided with the gate forming area 13 which is arranged corresponding to the gate forming area, and injection molding melt enters through the gate forming area 13 and performs injection molding on the appearance surface 11 corresponding to the injection molding melt, so that welding marks formed on the appearance surface by a plurality of strands of melt flowing through the same appearance surface can be avoided, and the problem that appearance defects are easy to generate on a spraying-free injection molding piece is solved.

In the present embodiment, the number of the appearance surfaces 11 is two, the two appearance surfaces 11 are disposed adjacently, and the first non-appearance surface 12 is disposed adjacently to the two appearance surfaces 11.

In the present embodiment, a predetermined distance is provided between the gate molding region 13, which is close to the symmetry center line of at least two adjacent appearance surfaces 11 with respect to the other gate molding regions 13, and the edge line of each appearance surface 11, the predetermined distance being greater than or equal to 5mm. Thus, the arrangement ensures that no glue inlet lines appear on the appearance surface 11 to generate appearance defects, thereby improving the appearance attractiveness of the appearance part.

As shown in fig. 4, the appearance surfaces 11 are two, and the plurality of gate molding regions 13 include a first gate molding region and a second gate molding region, the first gate molding region being closer to the junction between one appearance surface 11 and the first non-appearance surface 12 than the other gate molding regions 13, and the second gate molding region being closer to the junction between the other appearance surface 11 and the first non-appearance surface 12 than the other gate molding regions 13. Like this, in the fuse-element of moulding plastics got into first runner shaping district and second runner shaping district respectively to mould plastics to the outward appearance face 11 that corresponds respectively, and then can avoid the stranded fuse-element to flow through same outward appearance face and form the weld mark on this outward appearance face, solved the problem that produces the outward appearance defect easily on the spraying-free injection molding.

Optionally, the appearance component includes at least two adjacent first and second plates. 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-exterior surface 12. Wherein, the first plate body and the second plate body form a mounting cavity around. The thickness of the middle part of the first plate body is greater than the thickness at the outer edge of the first plate body. In this way, the above arrangement makes the appearance member take a case shape to cover and protect the structure provided inside. Meanwhile, the thickness of the first plate body ensures that the middle position of the first plate body obtains a more preferential flow time sequence, fountain flow is formed, and appearance defects such as flow marks, gate marks, welding marks and the like on an appearance surface are reduced.

As shown in fig. 3 and 4, the number of first plate bodies is two so that the exterior member has two exterior surfaces 11.

As shown in fig. 3, the weld line 70 is located on the connecting side along 2 appearance surfaces 11, and does not appear on the appearance surfaces 11.

In this embodiment, the exterior member is a body of the water purifier.

Example III

The exterior part in the third embodiment differs from the second embodiment in that: the two appearance surfaces 11 have different positional relationships.

As shown in fig. 5 to 7, the appearance surfaces 11 are two, and the plurality of gate molding regions 13 includes a first gate molding region 131 and a second gate molding region 132, the first gate molding region 131 being closer to the junction between one appearance surface 11 and the first non-appearance surface 12 than the other gate molding regions 13, and the second gate molding region 132 being closer to the junction between the other appearance surface 11 and the first non-appearance surface 12 than the other gate molding regions 13. Like this, in the fuse-element of moulding plastics got into first runner shaping district 131 and second runner shaping district 132 respectively to mould plastics to the outward appearance face 11 that corresponds respectively, and then can avoid the stranded fuse-element to flow through same outward appearance face 11 and form the weld mark on this outward appearance face, solved the problem that produces the outward appearance defect easily on the spraying-free injection molding.

In the present embodiment, the two appearance surfaces 11 are not adjacent. Specifically, the first non-exterior surface 12 is located between the two exterior surfaces 11, and the first non-exterior surface 12 is a quadrangular plane. Wherein, along the length direction and the width direction of the quadrilateral plane, the first gate molding areas 131 and the second gate molding areas 132 are staggered.

In this embodiment, the appearance component is a table-top water purifier body.

Example IV

The exterior part in the fourth embodiment differs from the second embodiment in that: the number of appearance surfaces 11 is different.

As shown in fig. 8 to 10, the number of the appearance surfaces 11 is three, and the first non-appearance surface 12 and the three appearance surfaces 11 are provided. The number of the pouring gate forming areas 13 is three, the three pouring gate forming areas 13 are arranged in one-to-one correspondence with the three appearance surfaces 11, and injection molding melt respectively enters the pouring gate forming areas 13 so as to perform injection molding on the corresponding appearance surfaces 11, so that the phenomenon that a plurality of melt flows through the same appearance surface 11 to form weld marks on the appearance surface can be avoided, and the problem that appearance defects are easy to generate on a spraying-free injection molding piece is solved.

As shown in fig. 8 and 9, the weld line 70 of the two melts is on the connecting edge along the 2 appearance surfaces 11, and does not appear on the appearance surfaces 11.

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

the appearance part is made by adopting a spraying-free technology, is an injection molding product and is made of a spraying-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, wherein the first non-appearance surface is arranged adjacent to the at least one appearance surface, the first non-appearance surface is provided with a plurality of sprue forming areas corresponding to the sprue of the mold, and the sprue forming areas are arranged on the first non-appearance surface at intervals. At least one gate molding zone of the plurality of gate molding zones is proximate to an interface of the at least one exterior surface and the first non-exterior surface relative to the other gate molding zones. Therefore, the welding line generated in the injection molding process is ensured to be positioned on the butt joint edge as much as possible by the arrangement of the gate forming area, the appearance surface is provided with the gate forming area which is correspondingly arranged, injection molding melt enters through the gate forming area and carries out injection molding on the appearance surface which corresponds to the injection molding melt, and further, the phenomenon that a plurality of melt flows through the same appearance surface to form welding marks on the appearance surface can be avoided, and the problem that appearance defects are easily generated on a spraying-free injection molding part is solved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An appearance component, wherein the appearance component is a spray-free injection molding, and an outer surface of the appearance component comprises:

at least one appearance surface (11);

a first non-exterior surface (12) disposed adjacent to at least one exterior surface (11), the first non-exterior surface (12) having a gate molding area (13) for corresponding to a gate (30) of a mold, the plurality of gate molding areas (13) being disposed at intervals on the first non-exterior surface (12);

wherein at least one gate molding region (13) of the plurality of gate molding regions (13) is close to a butt edge of at least one appearance surface (11) and the first non-appearance surface (12) with respect to the other gate molding regions (13).

2. The appearance part according to claim 1, characterized in that the gate molding zone (13) close to the appearance surface (11) with respect to the other gate molding zones (13) has a preset distance from the butt edge, the preset distance being greater than or equal to 5mm.

3. The appearance part according to claim 1 or 2, characterized in that the outer surface of the appearance part further comprises at least one second non-appearance surface (14).

4. The appearance component according to claim 1 or 2, wherein the appearance surface (11) is two, the plurality of gate molding regions (13) includes a first gate molding region (131) and a second gate molding region (132), the first gate molding region (131) is close to a butt edge of one of the appearance surfaces (11) and the first non-appearance surface (12) with respect to the other gate molding regions (13), and the second gate molding region (132) is close to a butt edge of the other of the appearance surfaces (11) and the first non-appearance surface (12) with respect to the other gate molding regions (13).

5. The appearance part according to claim 4, characterized in that two of the appearance surfaces (11) are arranged adjacent, the first non-appearance surface (12) being arranged in each case with two of the appearance surfaces (11).

6. The appearance part according to claim 4, characterized in that the first non-appearance surface (12) is located between two of the appearance surfaces (11), the first non-appearance surface (12) being a quadrangular plane; the first gate forming areas (131) and the second gate forming areas (132) are arranged in a staggered mode along the length direction and the width direction of the quadrilateral plane.

7. The appearance part according to claim 2, characterized in that the number of appearance surfaces (11) is three, the first non-appearance surface (12) being arranged in each case with three of the appearance surfaces (11).

8. The exterior part according to claim 5 or 7, wherein the first non-exterior surface (12) further has mounting recesses (121) communicating with each other, and a plurality of the gate molding regions (13) are provided around the mounting recesses (121).

9. A visual appearance component as claimed in claim 3, comprising:

at least one first plate body, the outer surface of which is the appearance surface (11);

the outer surface of the second plate body is the first non-appearance surface (12);

at least one third plate body, the outer surface of which is the second non-exterior surface (14);

wherein the first plate body, the second plate body and the third plate body surround to form a mounting cavity; the thickness of the middle part of the first plate body is larger than that of the outer edge of the first plate body; the length of the first plate body is smaller than or equal to 400mm; and/or, the width of the first plate body is smaller than or equal to 400mm.

10. An appearance component, wherein the appearance component is a spray-free injection molding, and an outer surface of the appearance component comprises:

at least two adjacent appearance surfaces (11);

the first non-appearance surface (12) is arranged on at least two appearance surfaces (11), the first non-appearance surface (12) is provided with a plurality of gate forming areas (13) corresponding to gates (30) of the mold, the plurality of gate forming areas (13) are arranged on the first non-appearance surface (12) at intervals;

wherein at least one gate molding region (13) of the plurality of gate molding regions (13) is close to a symmetry center line of at least two adjacent appearance surfaces (11) with respect to other gate molding regions (13).

11. The appearance component according to claim 10, characterized in that the gate molding zone (13) close to the symmetry center line of at least two adjacent appearance surfaces (11) with respect to the other gate molding zones (13) has a preset distance from the edge line of each appearance surface (11), the preset distance being greater than or equal to 5mm.

12. The appearance component of claim 10, wherein the appearance component comprises:

at least two adjacent first plate bodies, wherein the outer surface of each first plate body is the appearance surface (11);

wherein the first plate body and the second plate body form a mounting cavity around; the thickness of the middle part of the first plate body is greater than that of the outer edge of the first plate body.

13. The appearance component of claim 12, wherein the first plate body has a length of less than or equal to 400mm; and/or, the width of the first plate body is smaller than or equal to 400mm.

14. A household appliance comprising an appearance part, the appearance surface (11) of which forms at least part of the appearance surface of the household appliance, characterized in that the appearance part is the appearance part of any one of claims 1 to 13.

15. A mould, characterized in that it has a cavity for forming the appearance part of any one of claims 1 to 13, the mould further having a gate (30), the gate (30) being in communication with the cavity.

16. The mold of claim 15, further comprising a buffer runner (50) and a melt inlet (60), wherein a first end of the buffer runner (50) is in communication with the melt inlet (60), and wherein the buffer runner (50) is in communication with the gate (30) such that injection molding melt flows through the melt inlet (60), the buffer runner (50), and the gate (30) in sequence and into the cavity.

17. The mold according to claim 16, wherein the buffer runner (50) includes a first runner (51) and a second runner (52) communicating with each other, an end of the first runner (51) remote from the second runner (52) communicating with the melt inlet (60), and an end of the second runner (52) remote from the first runner (51) communicating with the gate (30).