CN217073192U

CN217073192U - Appearance part, household appliance and mold

Info

Publication number: CN217073192U
Application number: CN202123452338.5U
Authority: CN
Inventors: 李朝伟; 阳涛; 李林仕; 龙云钲; 谢武彬; 刁文志
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: 2022-07-29
Anticipated expiration: 2031-12-31

Abstract

The utility model provides an outward appearance part, domestic appliance and mould, outward appearance part are the spraying injection molding of exempting from, and outward appearance part includes: a plate-like structure having an appearance surface and a non-appearance surface, the non-appearance surface having a gate forming region for corresponding to a gate of a mold; along the extending direction of the plate-shaped structure, the plate-shaped structure is provided with a first plate section, a second plate section and a third plate section which are sequentially connected, and the widths of the first plate section, the second plate section and the third plate section in the extending direction of the plate-shaped structure are equal; the gate forming area is disposed on the second plate section. The utility model discloses an outward appearance part has solved the problem that the spraying injection molding of exempting from among the prior art produced appearance defects easily.

Description

Appearance part, household appliance and mold

Technical Field

The utility model relates to a domestic appliance field particularly, relates to an outward appearance part, domestic appliance and mould.

Background

At present, household appliances usually adopt a spraying process to carry out surface treatment on injection molding parts so as to realize the improvement of various colors and appearance textures and cover the appearance defects of parts, but have the problems of high cost and environmental pollution. Therefore, the spraying-free technology can be adopted to replace and make up the problem of the spraying process, the injection molding piece of the spraying-free material has unique light and shadow effect and metallic luster after molding, and the appearance effect which is comparable to or superior to the spraying effect can be achieved without secondary treatment. The technology has the advantages of excellent functions, low cost, environmental protection and the like.

However, the spray-free material is easy to have appearance defects such as flow marks, welding marks, gate marks and the like in the injection molding process, and the generated positions or degrees are difficult to predict and have poor consistency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an outward appearance part, domestic appliance and mould to the spraying injection molding that exempts from among the solution prior art produces appearance defects's problem easily.

In order to achieve the above object, according to an aspect of the present invention, there is provided an appearance part, the appearance part being a spray-free injection molding, the appearance part comprising: a plate-like structure having an appearance surface and a non-appearance surface, the non-appearance surface having a gate forming region for corresponding to a gate of a mold; along the extending direction of the plate-shaped structure, the plate-shaped structure is provided with a first plate section, a second plate section and a third plate section which are sequentially connected, and the widths of the first plate section, the second plate section and the third plate section in the extending direction of the plate-shaped structure are equal; the gate forming area is disposed on the second plate section.

Further, the plate-shaped structure is a symmetrical structure relative to the at least one reference surface, and the gate forming area is symmetrically arranged relative to a first reference surface in the at least one reference surface.

Further, the plate-like structure has a first end face and a second end face which are oppositely arranged, and a side wall which extends in the circumferential direction of the plate-like structure; the first end face and the side wall are both appearance faces, and the second end face is a non-appearance face of the plate-shaped structure; the gate forming area is arranged on the second end surface and extends to the connecting position of the second end surface and the side wall.

Further, the plate-like structure has a first end face and a second end face which are oppositely arranged, and a side wall which extends in the circumferential direction of the plate-like structure; the first end face is an appearance face, and at least part of the side wall and the second end face are non-appearance faces of the plate-shaped structure; the gate forming area is arranged on the second end surface and extends to the connecting position of the second end surface and the side wall; or the gate forming area is arranged on the side wall; alternatively, the gate forming region is disposed on the sidewall and the second end surface.

Further, when the gate forming area is arranged on the second end surface and extends to the joint of the second end surface and the side wall, the second end surface and the side wall are in transition through a fillet, and the gate forming area extends to the joint of the fillet and the side wall.

Further, the non-appearance surface is provided with a gate forming area, the length of the plate-shaped structure along the length direction of the plate-shaped structure is less than or equal to 400mm, and the width of the plate-shaped structure along the width direction of the plate-shaped structure is less than or equal to 400 mm.

Further, the length of the gate molding area along the length direction thereof is greater than or equal to 8 mm; and/or the width of the gate forming area along the width direction ranges from 0.6mm to 2 mm.

Furthermore, a first connecting end of the second plate section is connected with the first plate section, and a second connecting end of the second plate section is connected with the third plate section; the thickness of the second plate section in the direction from the gate forming area to the first connecting end is gradually reduced, the thickness of one end, connected with the first connecting end, of the second plate section from the gate forming area is equal to the thickness of the first connecting end and is the maximum thickness of the first plate section, and the thickness of one end, connected with the second connecting end, of the third plate section is equal to the thickness of the second connecting end and is the maximum thickness of the third plate section.

Further, the appearance part is made of a spraying-free material, and the spraying-free material comprises a base material and particles distributed in the base material; wherein, the base material is a thermoplastic polymer material; the particles are any one or more of metal particles, pearls-lustre powder and fibers.

Furthermore, the appearance surface is provided with a wire drawing pattern, and the extending direction of the wire drawing pattern is parallel to the flowing direction of the injection molding melt.

According to another aspect of the present invention, there is provided a household appliance, comprising an appearance component, wherein the appearance surface of the appearance component forms at least part of the appearance surface of the household appliance, and the appearance component is the above appearance component.

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, the gate being communicated with the cavity.

Further, the gate is a fan gate.

Further, the gates are symmetrically arranged relative to a second reference surface, and the second reference surface is arranged in parallel with the first reference surface.

Furthermore, the mould 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 one end of the pouring gate away from the cavity, so that the injection molding melt sequentially flows through the melt inlet, the buffer runner and the pouring gate and then enters the cavity; wherein, the buffer flow channel is a bending flow channel.

The utility model discloses an appearance part adopts and exempts from the spraying technique to make, this appearance part is injection moulding goods and is made by exempting from the spraying material, this appearance part's platelike structure has outward appearance face and non-outward appearance face, non-outward appearance face has the runner shaping district that is used for corresponding with the runner of mould, this appearance part is through setting up runner shaping district on the second plate section, can realize advancing gluey flow balance and pressure balance, make the injection moulding fuse-element arrive and fill the plate section of runner shaping district both sides almost simultaneously, be favorable to forming symmetrical fountain flow, appearance defects such as flow mark, runner mark and weld mark appear on the reduction outward appearance face, the problem that spraying-free injection molding easily produces appearance defect is solved; and the pressure equalization is beneficial to controlling the warping deformation of the appearance part.

Drawings

The accompanying drawings, which form a part of the present application, 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 and not to limit the invention. In the drawings:

fig. 1 shows an axonometric view of an embodiment of an appearance element according to the invention;

fig. 2 shows a front view of an embodiment of an appearance element according to the invention;

fig. 3 shows a bottom view of an embodiment of an appearance component according to the present invention;

fig. 4 shows a rear view of an embodiment of an appearance element according to the invention;

fig. 5 shows a cross-sectional view at a-a section of the appearance part in fig. 4;

fig. 6 shows a side view of an embodiment of an appearance element according to the invention; and

fig. 7 shows a partially enlarged view of an embodiment of the appearance member in fig. 6.

Wherein the figures include the following reference numerals:

10. a plate-like structure; 11. appearance surface; 12. a non-exterior surface; 13. a gate forming area; 14. a first plate section; 15. a second plate section; 16. a third plate section; 17. a first end face; 18. a second end face; 19. a side wall; 20. a first reference plane; 30. a gate; 40. a second reference plane; 50. a buffer flow channel; 60. a melt inlet; 70. and (4) rounding.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, 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.

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 according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The utility model provides an appearance part, please refer to fig. 1 to 7, appearance part is the spraying injection molding of exempting from, and appearance part includes: a plate-like structure 10, the plate-like structure 10 having an exterior surface 11 and a non-exterior surface 12, the non-exterior surface 12 having a gate forming region 13 for corresponding to a gate of a mold; along the extending direction of the plate-shaped structure 10, the plate-shaped structure 10 has a first plate section 14, a second plate section 15 and a third plate section 16 which are connected in sequence, and the widths of the first plate section 14, the second plate section 15 and the third plate section 16 in the extending direction of the plate-shaped structure 10 are equal; the gate forming zone 13 is arranged on the second plate section 15.

The utility model discloses an appearance part adopts and exempts from the spraying technique to make, this appearance part is injection moulding goods and is made by exempting from the spraying material, the platelike structure 10 of this appearance part has outward appearance face 11 and non-outward appearance face 12, non-outward appearance face 12 has the runner shaping district 13 that is used for corresponding with runner 30 of mould, this appearance part is through setting up runner shaping district 13 on second plate section 15, can realize into gluey flow balance and pressure balance, make the injection moulding fuse-element arrive and fill the plate section of runner shaping district 13 both sides almost simultaneously, be favorable to forming symmetrical fountain flow, appearance defects such as flow mark, runner mark and weld mark appear on reducing outward appearance face 11, the problem that spraying-free injection moulding easily produces appearance defect is solved; and the pressure equalization is beneficial to controlling the warping deformation of the appearance part.

The spraying-free injection molding part has unique light and shadow effect and metallic luster after being molded, can achieve the appearance effect which is comparable to or superior to spraying without secondary treatment, and has the advantages of excellent function, low cost, environmental protection and the like.

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

It should be noted that, when the appearance component is applied to the 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 in the application environment and visible to the user; the non-exterior surface 12 is located inside the household appliance, i.e. the non-exterior surface 12 is a surface hidden from the user inside the household appliance.

Specifically, in a direction perpendicular to the extending direction of the plate-like structure 10, the width of the first plate section 14 in the extending direction of the plate-like structure 10 is constant, the width of the second plate section 15 in the extending direction of the plate-like structure 10 is constant, and the width of the third plate section in the extending direction of the plate-like structure 10 is constant.

In the present embodiment, the plate-like structure 10 is a symmetrical structure with respect to at least one reference plane, and the gate forming region 13 is symmetrically disposed with respect to the first reference plane 20 of the at least one reference plane. This arrangement ensures that the incoming glue flows on both sides of the first datum surface 20 tend to be symmetrical and balanced.

In one embodiment, the plate-like structure 10 has oppositely arranged first and second end faces 17, 18, and a side wall 19 extending in the circumferential direction of the plate-like structure 10; the first end surface 17 and the side wall 19 are appearance surfaces, and the second end surface 18 is a non-appearance surface of the plate-shaped structure 10; the gate forming zone 13 is disposed on the second end surface 18 and extends to the junction of the second end surface 18 and the sidewall 19. Thus, the gate forming region 13 does not appear on the design surface, and the design surface does not have a notch due to removal of the gate forming portion.

In another embodiment, the plate-like structure 10 has a first end face 17 and a second end face 18 disposed oppositely, and a side wall 19 extending in the circumferential direction of the plate-like structure 10; the first end surface 17 is a design surface, and at least part of the side wall 19 and the second end surface 18 are non-design surfaces of the plate-like structure 10; the gate forming area 13 is arranged on the second end surface 18 and extends to the joint of the second end surface 18 and the side wall 19; alternatively, the gate forming region 13 is provided on the side wall 19; alternatively, the gate forming zone 13 is provided on the side wall 19 and the second end surface 18. In particular, it is more convenient to provide the gate forming area 13 on the side wall 19.

Specifically, when the gate forming area 13 is disposed on the second end surface 18 and extends to the junction of the second end surface 18 and the side wall 19, the second end surface 18 and the side wall 19 are transited by a fillet 70, and the gate forming area 13 extends to the junction of the fillet 70 and the side wall 19. Thus, the gate forming region 13 does not appear on the design surface, and the design surface does not have a notch due to removal of the gate forming portion.

It should be noted that, when the gate forming region 13 is disposed at other positions, the second end surface 18 and the sidewall 19 may also be configured to transition through the rounded corner 70. Wherein, when the gate forming area 13 is disposed on the sidewall 19 and extends to the connection of the second end surface 18 and the sidewall 19, the gate forming area 13 extends to the connection of the fillet 70 and the second end surface 18.

In the present embodiment, the non-exterior surface 12 is provided with a gate forming area 13, the length of the plate-like structure 10 in the length direction thereof is less than or equal to 400mm, and the width of the plate-like structure 10 in the width direction thereof is less than or equal to 400 mm. The longitudinal direction of the plate-like structure 10 is the x direction shown in fig. 2, and the width direction of the plate-like structure 10 is the y direction shown in fig. 2.

In the present embodiment, the length of the gate forming region 13 in the length direction thereof is greater than or equal to 8 mm; and/or the width of the gate forming zone 13 in its width direction ranges between 0.6mm and 2 mm. Specifically, the length direction of the gate forming area 13 is the width direction of the gate 30, i.e. the direction perpendicular to the mold opening direction of the mold; the width direction of the gate forming region 13 is the thickness direction of the gate 30, i.e., the mold opening direction of the mold. Such an arrangement ensures a low flow rate of the injection melt.

It should be noted that the range of values between 0.6mm and 2mm includes values of 0.6mm and 2 mm.

Specifically, in the present embodiment, the longitudinal direction of the gate forming region 13 is the x direction shown in fig. 2, and the width direction of the gate forming region 13 is the y direction shown in fig. 2.

In the present embodiment, the first connection end of the second plate segment 15 is connected to the first plate segment 14, and the second connection end of the second plate segment 15 is connected to the third plate segment 16; the thickness of the second plate section 15 in the direction from the gate forming area 13 to the first connecting end is gradually reduced, and the thickness of the second plate section 15 in the direction from the gate forming area 13 to the second connecting end is gradually reduced; the thickness of the end of the first plate section 14 connected to the first connection end is equal to the thickness of the first connection end and is the maximum thickness of the first plate section 14, and the thickness of the end of the third plate section 16 connected to the second connection end is equal to the thickness of the second connection end and is the maximum thickness of the third plate section 16. Such arrangement ensures that the second plate section 15 obtains a more preferential flow time sequence, realizes fountain flow, and avoids appearance defects such as flow marks, gate marks, welding marks and the like on the appearance surface 11.

In this embodiment, the appearance member is made of a spray-free material including a base material and particles distributed in the base material; wherein, the base material is a thermoplastic polymer material; the particles are any one or more of metal particles, pearls-lustre powder and fibers. The spraying-free material contains the particles, so that the injection molding piece has unique light and shadow effect and metallic luster after molding, and the appearance effect which is comparable to or better than that of spraying can be achieved without secondary treatment.

Optionally, the metal particles are aluminum or copper.

Optionally, the fibers are nylon or natural fibers.

In the present embodiment, the design surface 11 is provided with a drawing line, and the extending direction of the drawing line is parallel to the flowing direction of the injection molding melt. If the appearance surface has flow marks, the direction of the flow marks is the same as the flowing direction, the extending direction of the wire drawing lines is parallel to the flowing direction of the melt, so that the flow marks can be covered by the lines of the wire drawing lines, and the flow marks have the function of covering.

The surface drawing is a surface treatment means for providing a decorative effect by forming lines on the surface of the exterior part by surface drawing.

Specifically, the gate forming region 13 has a rectangular or trapezoidal shape.

Alternatively, the appearance member may be a tank cap.

In other embodiments, the design surface 11 has a first gate forming area, and the design component covers or thins the first gate forming area by labeling, silk printing, laser engraving, etc. due to the gate lines generated at the first gate forming area. Wherein the first gate forming region and the gate forming region are left on the exterior part by the same implementation means.

In other embodiments, the appearance surface 11 has flow marks, and the flow marks on the appearance surface 11 are covered or diluted by using a concave-convex mark with decoration, a sun print, a label, silk printing, laser engraving, and the like.

In other embodiments, the appearance surface 11 has weld lines, and the weld lines on the appearance surface 11 are covered or diluted by using decorative embossed marks, sun lines, labels, silk screen printing, laser engraving, and the like.

The utility model also provides a household appliance, including the outward appearance part, the outward appearance face 11 of outward appearance part forms household appliance's at least partial outward appearance face, and the outward appearance part is the outward appearance part in above-mentioned embodiment.

Optionally, the household appliance is a desk-top water purifier, and the appearance component is a water tank cover of the desk-top water purifier.

The utility model also provides a mould, mould have the die cavity that is used for forming the outward appearance part in above-mentioned embodiment, and the mould still has runner 30, and runner 30 is linked together with the die cavity.

In the present embodiment, the gate 30 is a fan gate. The arrangement can ensure the low-flow-rate flow of the injection molding melt and easily remove the gate forming part.

Specifically, the end of the gate 30 communicating with the cavity has a first communicating port, the first communicating port corresponds to the gate forming area 13, the dimension a of the first communicating port in the width direction of the gate 30 is greater than or equal to 8mm, and the value range of the first communicating port in the thickness direction of the gate 30 is between 0.6mm and 2 mm. The thickness direction of the gate 30 is the mold opening direction of the mold, and the width direction of the gate 30 is the direction perpendicular to the mold opening direction of the mold.

Specifically, the width upstream of the gate 30 is smaller than the width downstream of the gate 30 in the width direction of the gate 30, and the thickness upstream of the gate 30 is larger than the thickness downstream of the gate 30 in the thickness direction of the gate 30. Wherein, the injection molding melt flows through the upstream of the gate 30 first, and the injection molding melt flows through the downstream of the gate 30. Such an arrangement can achieve a low flow velocity, and the gate forming portion formed at the gate 30 can be easily separated from the exterior part.

In the present embodiment, the gate 30 is symmetrically disposed with respect to the second reference surface 40, and the second reference surface 40 is disposed in parallel with the first reference surface 20. This arrangement ensures that the incoming glue flows on both sides of the first datum surface 20 tend to be symmetrical and balanced.

Preferably, the second reference surface 40 is arranged coincident with the first reference surface 20. Such an arrangement ensures that the incoming glue flows on both sides of the first datum surface 20 tend to be symmetrical and balanced.

In this embodiment, the mold further has a buffer runner 50 and a melt inlet 60, a first end of the buffer runner 50 is communicated with the melt inlet 60, and the buffer runner 50 is communicated with an end of the gate 30 away from the mold cavity, so that the injection molding melt sequentially flows through the melt inlet 60, the buffer runner 50 and the gate 30 and then enters the mold cavity; wherein the buffer flow passage 50 is a curved flow passage. The arrangement of the buffer runner 50 has a buffer effect on the injection molding melt.

The buffer flow channel 50 is a curved flow channel, that is, the axis of the buffer flow channel 50 is a curve.

Optionally, the buffer flow passage 50 is an arc flow passage, i.e. the axis of the buffer flow passage 50 is an arc.

Specifically, the junction of the buffer runner 50 and the gate 30 is located between a first end of the buffer runner 50 and a second end of the buffer runner 50. This arrangement provides a buffer for the melt (i.e. the injection-molded melt described above) to flow through the runner, avoiding jetting due to rapid flow in the straight runner.

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

the utility model discloses an appearance part adopts and exempts from the spraying technique to make, this appearance part is injection moulding goods and is made by exempting from the spraying material, this appearance part's platelike structure 10 has outward appearance face 11 and non-outward appearance face 12, non-outward appearance face 12 has the runner shaping district 13 that is used for corresponding with the runner 30 of mould, this appearance part is through setting up runner shaping district 13 on second plate section 15, can realize advancing gluey flow balance and pressure balance, make the injection moulding fuse-element arrive and fill the plate section of runner shaping district 13 both sides almost simultaneously, be favorable to forming symmetrical fountain flow, appearance defects such as flow mark, runner mark and weld mark appear on reducing appearance face 11, the easy outward appearance defect's that produces problem of spraying-free injection molding is solved; and the pressure equalization is beneficial to controlling the warping deformation of the appearance part.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement 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 molded part, the appearance component comprising:

a plate-like structure (10), the plate-like structure (10) having an appearance face (11) and a non-appearance face (12), the non-appearance face (12) having a gate forming region (13) for corresponding to a gate (30) of a mold;

along the extending direction of the plate-shaped structure (10), the plate-shaped structure (10) is provided with a first plate section (14), a second plate section (15) and a third plate section (16) which are connected in sequence, and the widths of the first plate section (14), the second plate section (15) and the third plate section (16) in the extending direction of the plate-shaped structure (10) are equal; the gate forming region (13) is arranged on the second plate section (15).

2. The appearance element according to claim 1, wherein the plate-like structure (10) is of symmetrical configuration with respect to at least one reference plane, the gate-forming zone (13) being arranged symmetrically with respect to a first reference plane (20) of the at least one reference plane.

3. -the appearance element according to claim 1, characterized in that the plate-like structure (10) has a first end face (17) and a second end face (18) arranged opposite each other, and a side wall (19) extending in the circumferential direction of the plate-like structure (10); the first end face (17) and the side wall (19) are both the appearance faces, and the second end face (18) is a non-appearance face of the plate-shaped structure (10);

the gate-forming zone (13) is arranged on the second end face (18) and extends to the connection of the second end face (18) and the side wall (19).

4. -the appearance element according to claim 1, characterized in that the plate-like structure (10) has a first end face (17) and a second end face (18) arranged opposite each other, and a side wall (19) extending in the circumferential direction of the plate-like structure (10); the first end face (17) being the appearance face, at least part of the side wall (19) and the second end face (18) being non-appearance faces of the plate-like structure (10);

the gate-forming zone (13) being arranged on the second end face (18) and extending to the junction of the second end face (18) and the side wall (19); or

The gate-forming region (13) being arranged on the side wall (19); or

The gate-forming region (13) is arranged on the side wall (19) and the second end face (18).

5. The appearance part according to claim 3 or 4, characterized in that the second end face (18) and the side wall (19) transition with a fillet (70) when the gate-forming zone (13) is provided on the second end face (18) and extends to the connection of the second end face (18) and the side wall (19), the gate-forming zone (13) extending to the connection of the fillet (70) and the side wall (19).

6. The exterior element according to any one of claims 1 to 4, wherein the non-exterior surface (12) is provided with one gate forming region (13), the length of the plate-like structure (10) in the length direction thereof is less than or equal to 400mm, and the width of the plate-like structure (10) in the width direction thereof is less than or equal to 400 mm.

7. The appearance element according to any one of claims 1 to 4, wherein the length of the gate-forming zone (13) in its length direction is greater than or equal to 8 mm; and/or the presence of a gas in the gas,

the width of the gate forming area (13) in the width direction thereof ranges from 0.6mm to 2 mm.

8. The appearance element according to any one of claims 1 to 4, characterized in that a first connection end of the second plate section (15) is connected with the first plate section (14) and a second connection end of the second plate section (15) is connected with the third plate section (16);

the thickness of the second plate section (15) in the direction from the gate forming area (13) to the first connecting end is gradually reduced, and the thickness of the second plate section (15) in the direction from the gate forming area (13) to the second connecting end is gradually reduced; the thickness of the end, connected with the first connecting end, of the first plate section (14) is equal to that of the first connecting end and is the maximum thickness of the first plate section (14), and the thickness of the end, connected with the second connecting end, of the third plate section (16) is equal to that of the second connecting end and is the maximum thickness of the third plate section (16).

9. The appearance part according to any one of claims 1 to 4, wherein the appearance part is made of a spray-free material comprising a base material and particles distributed within the base material;

wherein the base material is a thermoplastic polymer material; the particles are any one or more of metal particles, pearls-lustre powder and fibers.

10. The appearance element according to any one of claims 1 to 4, characterized in that the appearance face (11) is provided with a drawing grain, the extension direction of which is parallel to the flow direction of the injection-molded melt.

11. A household appliance comprising an appearance component, the appearance face (11) of which forms at least part of the appearance face of the household appliance, characterized in that the appearance component is an appearance component according to any one of claims 1 to 10.

12. A mold having a cavity for forming the exterior part according to any one of claims 1 to 10, the mold further having a gate (30), the gate (30) communicating with the cavity.

13. The mold according to claim 12, wherein the gate (30) is a fan gate.

14. The mold according to claim 12, wherein the appearance member is the appearance member according to claim 2, the gate (30) is disposed symmetrically with respect to a second reference plane (40), and the second reference plane (40) is disposed in parallel with the first reference plane (20).

15. The mold according to claim 12, further comprising a buffer runner (50) and a melt inlet (60), wherein a first end of the buffer runner (50) is communicated with the melt inlet (60), and the buffer runner (50) is communicated with an end of the gate (30) away from the mold cavity, so that the injection melt flows through the melt inlet (60), the buffer runner (50) and the gate (30) into the mold cavity in sequence; wherein the buffer flow channel (50) is a curved flow channel.