CN217098692U

CN217098692U - Appearance part, household appliance and mold

Info

Publication number: CN217098692U
Application number: CN202123452365.2U
Authority: CN
Inventors: 陈浩浩; 谭诗贤; 刘秋元; 王云飞; 唐光伟
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: 2022-08-02
Anticipated expiration: 2031-12-31

Abstract

The utility model provides an outward appearance part, domestic appliance and mould, outward appearance part include the outward appearance part body, and the outward appearance part body has outward appearance face and non-outward appearance face, and the outward appearance part is for exempting from the spraying injection molding, and the outward appearance part still includes: the flow guide structure is arranged on the non-appearance surface and protrudes out of the non-appearance surface; and/or the flow resisting structure is arranged on the non-appearance surface and is a groove or a through hole. 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 component, including an appearance component body, the appearance component body has an appearance surface and a non-appearance surface, the appearance component is a spray-free injection molding, and the appearance component further includes: the flow guide structure is arranged on the non-appearance surface and protrudes out of the non-appearance surface; and/or the flow resisting structure is arranged on the non-appearance surface and is a groove or a through hole.

Further, the first end of the top surface of the flow guide structure is in transition connection with the first surface of the non-appearance surface through a first transition surface; wherein, the first transition surface is a plane or an arc surface.

Further, the first end of the top surface of the flow guide structure is in transition connection with the first surface of the non-appearance surface through a first transition surface; the height difference between the first end of the top surface and the end of the first surface connected with the first transition surface is H; the width of the first transition surface is greater than or equal to 5 times H in the direction from the top surface to the first surface.

Further, the non-exterior surface includes a first surface and a second surface, the flow directing structure is located between the first surface and the second surface, the first surface is in transitional connection with a first end of a top surface of the flow directing structure, and the second surface is in transitional connection with a second end of the top surface.

Further, the appearance component body is of a plate-shaped structure, the plate-shaped structure is provided with a first end face and a second end face which are oppositely arranged, the first end face is an appearance face, and the second end face is a non-appearance face; the plate-shaped structure comprises a first plate section, a second plate section and a third plate section which are sequentially arranged, and the flow guide structure is arranged on the second plate section; the appearance part has a gate forming area for corresponding to a gate of the mold, the gate forming area being located on the second plate section and/or the flow directing structure.

Furthermore, the first plate section, the second plate section and the third plate section are sequentially arranged along a first preset direction, and the appearance part body and the flow guide structure are symmetrically arranged relative to the reference surface; the reference surface is arranged perpendicular to the first preset direction.

Further, the non-appearance surface and the hole wall of the through hole are in transition connection through a first fillet or a first chamfer.

Further, the height of the flow guide structure is less than or equal to two times of the thickness of the main material of the appearance part body.

Further, when the flow resisting structure is a groove, the appearance part body is provided with a connecting plate section, the connecting plate section is positioned at the bottom of the groove, and the top surface of the connecting plate section is the groove bottom of the groove; wherein the thickness of the connecting plate section is greater than or equal to 0.5 mm.

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 a further aspect of the present invention, there is provided a mold having a cavity for forming the appearance part described above.

The utility model discloses an appearance part 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. When the appearance part body of the appearance part is provided with the flow guide structure, the thickness of the material of the appearance part body at the position provided with the flow guide structure is thickened, so that the injection molding melt has higher flowing speed when being filled at the position; when the flow resisting structure is arranged on the appearance part body of the appearance part, the injection molding melt can have a slower flowing speed when being filled at the position, so that the flowing speed of the injection molding melt is controllable by arranging the flow guide structure and the flow resisting structure, the welding line is further enabled to appear at a specific position, and the welding line is prevented from appearing at a position which influences the appearance effect of the household appliance; and moreover, the flow guide structure and the flow blocking structure are arranged on the non-appearance surface, so that flow marks on the appearance surface are reduced, and the problem that the spraying-free injection molding part is easy to generate appearance defects is solved.

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 (including a flow directing structure) according to the invention;

fig. 2 shows a top view of an embodiment of an appearance element (including a flow directing structure) according to the invention;

FIG. 3 shows a cross-sectional view at section A-A of the appearance component (including the flow directing structure) of FIG. 2;

fig. 4 shows an isometric view of an embodiment of an appearance component (including a flow-impeding structure) according to the present invention; and

fig. 5 shows a top view of an embodiment of an appearance part (including a flow blocking structure) according to the invention.

Wherein the figures include the following reference numerals:

10. an appearance member body; 11. appearance surface; 12. a non-exterior surface; 121. a first surface; 122. a second surface; 123. a first transition surface; 124. a second transition surface; 13. a first plate section; 14. a second plate section; 15. a third plate section; 20. a flow guide structure; 21. a top surface; 30. a flow-impeding structure; 40. a gate; 50. a gate forming area; 60. a reference plane.

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 5, including appearance part body 10, appearance part body 10 has outward appearance face 11 and non-outward appearance face 12, and appearance part is for exempting from the spraying injection molding, and appearance part still includes: the flow guide structure 20 is arranged on the non-appearance surface 12, and the flow guide structure 20 is arranged to protrude out of the non-appearance surface 12; and/or the flow resisting structure 30 is arranged on the non-appearance surface 12, and the flow resisting structure 30 is a groove or a through hole.

The utility model discloses an appearance part adopts and exempts from the spraying technique to make, and this appearance part just is made by exempting from spray material for injection moulding goods, exempts from the spraying injection molding to have unique shadow effect and metallic luster after the shaping, does not pass through secondary treatment and can reach the appearance effect that rivals or be superior to the spraying. The technology has the advantages of excellent functions, low cost, environmental protection and the like. When the guide structure 20 is arranged on the appearance part body 10 of the appearance part, the thickness of the appearance part body 10 at the position where the guide structure 20 is arranged is thickened, so that the injection molding melt has a faster flowing speed when being filled at the position; when the flow resisting structure 30 is arranged on the appearance part body 10 of the appearance part, the injection molding melt can have a slower flowing speed when being filled at the position, so that the flowing speed of the injection molding melt is controllable by arranging the flow guide structure 20 and the flow resisting structure 30, the welding line is further enabled to appear at a specific position, and the welding line is prevented from appearing at a position which influences the appearance effect of the household appliance; in addition, the flow guide structure 20 and the flow blocking structure 30 are arranged on the non-appearance surface 12, so that flow marks on the appearance surface 11 are reduced, and the problem that the spraying-free injection molding part is prone to appearance defects is solved.

Moreover, the appearance part can reduce the flow resistance, reduce the injection pressure and reduce the deformation and shrinkage by arranging the flow guide structure 20.

Specifically, the appearance surface 11 of the appearance component body 10 is an appearance surface of the appearance component, and the non-appearance surface 12 of the appearance component body 10 is a non-appearance surface of the appearance component; the outer surface of the flow guiding structure 20 is a non-appearance surface of the appearance part.

When the appearance component is applied to the household appliance, the appearance surface of the appearance component is a component of the appearance of the household appliance, that is, the appearance surface of the appearance component is a surface exposed in an application environment and visible to a user; the non-exterior surface of the exterior part is positioned inside the household appliance, i.e. the non-exterior surface of the exterior part is a surface hidden inside the household appliance and not seen by a user.

In the present embodiment, the first end of the top surface 21 of the flow guiding structure 20 and the first surface 121 of the non-exterior surface 12 are transitionally connected by a first transition surface 123; wherein, the first transition surface 123 is a plane or an arc surface. The arrangement reduces the generation of flow marks at the position where the flow guide structure 20 is arranged, and ensures the appearance effect of the appearance part.

In the present embodiment, the first end of the top surface 21 of the flow guiding structure 20 and the first surface 121 of the non-exterior surface 12 are transitionally connected by a first transition surface 123; the height difference between the first end of the top surface 21 and the end of the first surface 121 connected to the first transition surface 123 is H; the width of the first transition surface 123 in the direction from the top surface 21 to the first surface 121 is greater than or equal to 5 times H. The arrangement reduces the generation of flow marks at the position where the flow guide structure 20 is arranged, and ensures the appearance effect of the appearance part.

Specifically, the top surface 21 is parallel to the first surface 121.

It should be noted that, in the direction from the top surface 21 to the first surface 121, the width of the first transition surface 123 is greater than or equal to 5 times of H, that is, in the direction from the top surface 21 to the first surface 121, the minimum width of the first transition surface 123 is greater than or equal to 5 times of H; here, the width direction of the first transition surface 123 is the left-right direction in fig. 3.

In this embodiment, the non-exterior surface 12 includes a first surface 121 and a second surface 122, the flow guiding structure 20 is located between the first surface 121 and the second surface 122, the first surface 121 is connected to a first end of the top surface 21 of the flow guiding structure 20 in a transition manner, and the second surface 122 is connected to a second end of the top surface 21 in a transition manner. The arrangement can ensure that the flow speed of the injection molding melt in the middle position of the appearance part is high, and the flow speed of the injection molding melts on two sides of the appearance part is low, so that the injection molding melts realize fountain type flow, and the two injection molding melts are prevented from converging in the middle position of the appearance part to generate a weld line.

Specifically, the second end of the top surface 21 and the second surface 122 are transitionally connected by a second transition surface 124.

In one embodiment, the appearance member body 10 is a plate-shaped structure having a first end face and a second end face oppositely arranged, the first end face is an appearance face 11, and the second end face is a non-appearance face 12; the plate-shaped structure comprises a first plate section 13, a second plate section 14 and a third plate section 15 which are arranged in sequence, and the flow guide structure 20 is arranged on the second plate section 14; the appearance part has a gate forming region 50 for corresponding to a gate 40 of the mold, the gate forming region 50 being located on the second plate section 14 and/or the flow directing structure 20. Specifically, the first end face is a plane, and the first end face is disposed parallel to the first surface 121 and the second surface 122; the flow directing structure 20 is disposed on a second end face, which includes a first surface 121, a second surface 122, a first transition surface 123, and a second transition surface 124.

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 40 (also called a gate) is communicated with the cavity, a material in the gate 40 forms a gate molding part, and a region where the appearance part is connected with the gate molding part is a gate molding region 50.

Specifically, the gate forming region 50 is located on the non-exterior surface of the exterior part.

Specifically, the first plate section 13, the second plate section 14 and the third plate section 15 are sequentially arranged along a first preset direction, and the appearance part body 10 and the flow guide structure 20 are symmetrically arranged relative to the reference plane 60; wherein the reference plane 60 is arranged perpendicular to the first predetermined direction. The arrangement ensures that the flow condition of the injection molding melt is completely symmetrical, and reduces appearance defects.

Alternatively, the plate-like structure has a first end and a second end arranged in sequence in the up-down direction in fig. 2, and the flow guiding structure 20 extends from the first end of the plate-like structure to the second end of the plate-like structure. Such an arrangement further reduces the appearance defects.

In other embodiments, the non-exterior surface 12 and the wall of the through-hole are transitionally connected by a first fillet or a first chamfer. Such an arrangement reduces the occurrence of flow marks, and thus reduces appearance defects. Specifically, the through hole is disposed through the appearance part body 10, and the through hole has a first opening and a second opening, the first opening is located on the third end surface of the appearance part body 10, and the second opening is located on the fourth end surface of the appearance part body 10; the end surfaces of the first opening and the second opening are non-appearance surfaces, namely the third end surface and the fourth end surface are non-appearance surfaces. The third end surface is in transitional connection with the hole wall of the through hole through a fillet or a chamfer; the fourth end surface is in transition connection with the hole wall of the through hole through a fillet or a chamfer.

Optionally, the height of the flow guide structure 20 is less than or equal to twice the thickness of the main material of the appearance part body 10. Wherein, the average thickness or the median of thickness of the appearance part body 10 is 1 times of the main material thickness, and the height direction of the flow guide structure 20 extends along the thickness direction of the appearance part body 10. The arrangement can reduce the generation of flow marks and ensure the appearance effect of the appearance component.

Optionally, when the flow blocking structure 30 is a groove, the appearance part body 10 has a connecting plate section, the connecting plate section is located at the bottom of the groove, and the top surface of the connecting plate section is the bottom of the groove; wherein the thickness of the connecting plate section is greater than or equal to 0.5 mm. The arrangement can reduce the generation of flow marks and ensure the appearance effect of the appearance component. The thickness direction of the connecting plate section is the thickness direction of the appearance part body 10, that is, the depth direction of the groove.

It should be noted that the thickness of the connecting plate segment is greater than or equal to 0.5mm, that is, the minimum thickness of the connecting plate segment is greater than or equal to 0.5 mm.

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 at least one of metal particles, pearl powder and fibers.

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.

In this embodiment, the non-design surface 12 and the groove wall of the groove are transitionally connected by a second fillet or a second chamfer. Such an arrangement reduces the occurrence of flow marks and thus appearance defects.

Alternatively, the through-holes may be circular holes, polygonal holes, elliptical holes, or other shaped through-holes.

Alternatively, the grooves may be strip-shaped grooves, annular grooves, or grooves of other shapes.

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.

In other embodiments, the appearance surface 11 has flow marks, and the flow marks on the appearance surface 11 are covered or diluted in the forms of decorative concave-convex marks, sun lines, labels, silk screen 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 part layout can be thickened by arranging the flow guide structure 20, so that the melt has higher flowing speed when being filled in the part layout; the part layout can be thinned by arranging the grooves, so that the melt has a slower flowing speed when being filled in the groove; the parts are arranged by digging holes or increasing the holes so that the melt has slower flowing speed when being filled in the parts.

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

The utility model also provides a mould, wherein, the mould has the die cavity that is used for forming the outward appearance part in above-mentioned embodiment.

Specifically, the mold further has a gate 40, and the gate 40 communicates with the cavity.

In this embodiment, the mold further has a buffer runner and a melt inlet, a first end of the buffer runner is communicated with the melt inlet, and the buffer runner is communicated with one end of the gate 40 away from the cavity, so that the injection molding melt flows through the melt inlet, the buffer runner and the gate 40 in sequence and then enters the cavity; wherein, the buffer flow channel is a bending flow channel. The arrangement of the buffer runner plays a role in buffering the injection molding melt.

The buffer flow channel is a bent flow channel, namely the axis of the buffer flow channel is a curve.

Optionally, the buffer flow passage is an arc flow passage, that is, the axis of the buffer flow passage is an arc.

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, and this appearance part is injection moulding goods and is made by exempting from the spraying material. When the guide structure 20 is arranged on the appearance part body 10 of the appearance part, the thickness of the appearance part body 10 at the position where the guide structure 20 is arranged is thickened, so that the injection molding melt has a faster flowing speed when being filled at the position; when the flow resisting structure 30 is arranged on the appearance part body 10 of the appearance part, the injection molding melt can have a slower flowing speed when being filled at the position, so that the flowing speed of the injection molding melt is controllable by arranging the flow guide structure 20 and the flow resisting structure 30, the welding line is further enabled to appear at a specific position, and the welding line is prevented from appearing at a position which influences the appearance effect of the household appliance; moreover, the flow guide structure 20 and the flow blocking structure 30 are arranged on the non-appearance surface 12, so that flow marks on the appearance surface 11 are reduced, and the problem that appearance defects are easily caused by spraying-free injection molding parts is solved.

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 part comprising an appearance part body (10), said appearance part body (10) having an appearance face (11) and a non-appearance face (12), characterized in that said appearance part is a spray-free injection molded part, said appearance part further comprising:

the flow guide structure (20) is arranged on the non-appearance surface (12), and the flow guide structure (20) protrudes out of the non-appearance surface (12); and/or the presence of a gas in the gas,

the flow resisting structure (30) is arranged on the non-appearance surface (12), and the flow resisting structure (30) is a groove or a through hole.

2. The appearance element according to claim 1, wherein a first end of the top surface (21) of the flow directing structure (20) and the first surface (121) of the non-appearance surface (12) are transitionally connected by a first transition surface (123);

wherein the first transition surface (123) is a plane or an arc surface.

3. The appearance element according to claim 1, wherein a first end of the top surface (21) of the flow directing structure (20) and the first surface (121) of the non-appearance surface (12) are transitionally connected by a first transition surface (123);

the height difference between the first end of the top surface (21) and the end of the first surface (121) connected to the first transition surface (123) is H; the width of the first transition surface (123) in the direction from the top surface (21) to the first surface (121) is greater than or equal to 5 times H.

4. The appearance element according to claim 1, wherein the non-appearance face (12) comprises a first surface (121) and a second surface (122), the flow directing structure (20) being located between the first surface (121) and the second surface (122), the first surface (121) being in transitional connection with a first end of a top face (21) of the flow directing structure (20), the second surface (122) being in transitional connection with a second end of the top face (21).

5. The exterior part according to claim 1, wherein the exterior part body (10) is a plate-like structure having a first end face and a second end face which are oppositely disposed, the first end face being the exterior face (11), the second end face being the non-exterior face (12);

the plate-shaped structure comprises a first plate section (13), a second plate section (14) and a third plate section (15) which are sequentially arranged, and the flow guide structure (20) is arranged on the second plate section (14);

the appearance part has a gate forming region (50) for corresponding to a gate (40) of a mold, the gate forming region (50) being located on the second plate section (14) and/or the flow guiding structure (20).

6. The appearance element according to claim 5, characterized in that said first (13), second (14) and third (15) plate sections are arranged in succession along a first predetermined direction, said appearance element body (10) and said flow-directing structure (20) being each arranged symmetrically with respect to a reference plane (60); wherein the reference plane (60) is arranged perpendicular to the first preset direction.

7. The appearance element according to any one of claims 1 to 6, characterized in that the non-appearance face (12) and the wall of the through-hole are transitionally connected by a first fillet or a first chamfer.

8. The appearance element according to any one of claims 1 to 6, characterized in that the height of the flow-directing structure (20) is less than or equal to twice the main material thickness of the appearance element body (10).

9. The appearance part according to any one of claims 1 to 6, wherein, when the flow-obstructing structure (30) is a groove, the appearance part body (10) has a connecting plate section at the bottom of the groove, the top surface of the connecting plate section being the bottom of the groove; wherein the thickness of the connecting plate segment is greater than or equal to 0.5 mm.

10. A household appliance comprising an appearance component, the appearance surface of which forms at least part of the appearance surface of the household appliance, characterized in that the appearance component is an appearance component according to any one of claims 1 to 9.

11. A mold having a cavity for forming the exterior part of any one of claims 1 to 9.