CN116406951A

CN116406951A - Face cover part, household electrical appliance and mould

Info

Publication number: CN116406951A
Application number: CN202111676842.5A
Authority: CN
Inventors: 谢武彬; 刘秋元; 尹志雄; 李锦彬; 江松
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 a face cover part, a household appliance and a die, wherein the face cover part comprises a face cover part body, the face cover part body comprises an end wall and a side wall arranged around the end wall, the face cover part is a spraying-free injection molding part, and at least part of the outer side wall surface of the side wall is an appearance surface; the end wall comprises a first plate section and a second plate section, the first plate section and the second plate section are connected with the side wall, and a separation gap is formed between the first plate section and the second plate section; the surface cover part body comprises a first structural body and a second structural body connected with the first structural body, when the surface cover part body is installed on the household appliance, the first structural body is positioned on the front surface of the household appliance, and the second structural body is positioned on the back surface of the household appliance; wherein the first structure includes a first plate segment having a gate molding zone for corresponding to a gate of the mold. The surface cover part solves the problem that the spraying-free injection molding part in the prior art is easy to generate appearance defects.

Description

Face cover part, household electrical appliance and mould

Technical Field

The invention relates to the technical field of household appliances, in particular to a face cover part, a household appliance and a die.

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 a face cover part, a household appliance and a die, 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 a face cover member including a face cover member body including an end wall and a side wall provided around the end wall, the face cover member being a spray-free injection molded part, at least part of an outer side wall surface of the side wall being an exterior surface; the end wall comprises a first plate section and a second plate section, the first plate section and the second plate section are connected with the side wall, and a separation gap is formed between the first plate section and the second plate section; the surface cover part body comprises a first structural body and a second structural body connected with the first structural body, when the surface cover part body is installed on the household appliance, the first structural body is positioned on the front surface of the household appliance, and the second structural body is positioned on the back surface of the household appliance; wherein the first structure includes a first plate segment having a gate molding zone for corresponding to a gate of the mold.

Further, in the circumferential direction of the face cover member body, the gate molding region is located in the middle of the first structural body.

Further, the face cover member body is disposed symmetrically with respect to the reference face, and the first structural body and the gate molding region are disposed symmetrically with respect to the reference face.

Further, the first top surface of the end wall is connected to the outer side wall surface, at least a portion of the first top surface is a non-exterior surface, the first top surface includes a second top surface of the first plate section, and the gate molding area is located on the second top surface.

Further, the second plate section is provided with a first through hole.

Further, the first through holes are multiple, and the multiple first through holes are arranged at intervals.

Further, the second plate section includes a first connection plate and a second connection plate, the first connection plate is connected with the side wall through the second connection plate, and the thickness of the second connection plate is smaller than that of the first connection plate.

Further, a groove is provided on the second plate section.

Further, the filling end of the second plate section is provided with a second through hole.

Further, the length of the face cover member in any extending direction thereof is 400mm or less.

According to another aspect of the present invention, there is provided a household appliance comprising a cover member, wherein the cover member is the above-mentioned cover member.

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

The surface cover part is made by adopting a spraying-free technology, is an injection molding product and is made of a spraying-free material, the spraying-free injection molding part has unique light and shadow effect and metallic luster after molding, and can achieve the appearance effect comparable to or better than spraying without secondary treatment. The face cover part comprises an end wall and a side wall arranged around the end wall, and a separation gap is arranged between the first plate section and the second plate section of the end wall so that the first plate section and the second plate section are arranged separately, namely the first plate section and the second plate section are not directly connected; the gate forming area is positioned on the first plate section to ensure that the injection molding melt is preferentially filled in the side wall after passing through the gate and the first plate section, so that flow marks on the surface of the outer side wall are reduced; and, first board section is the partial structure of first structure body and first structure body is located domestic appliance's front for the welding line appears on the lateral wall of second structure body, and the welding line is in the place that the user was difficult to see promptly, has improved domestic appliance's outward appearance effect. Therefore, the surface cover part solves the problem that the spraying-free injection molding part is easy to generate appearance defects.

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 an isometric view of an embodiment of a face cover component according to the present invention;

FIG. 2 illustrates a bottom view of an embodiment of a face cover component according to the present invention;

FIG. 3 shows a cross-sectional view of an embodiment of the face cover component of FIG. 2;

FIG. 4 shows a top view of an embodiment of a face cover component according to the present invention;

FIG. 5 shows a cross-sectional view of the face cover component of FIG. 4 at section A-A; and

fig. 6 shows a cross-sectional view at section B-B of the face cover component of fig. 4.

Wherein the above figures include the following reference numerals:

10. an end wall; 11. a first top surface; 12. a first plate segment; 13. a second plate segment; 131. a first through hole; 132. a first connection plate; 133. a second connecting plate; 134. a groove; 135. a second through hole; 14. a first structure; 15. a second structure; 20. a sidewall; 21. an outer side wall surface; 30. a gate; 40. and a gate molding zone.

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 should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. 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 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.

The invention provides a surface cover part, please refer to fig. 1-6, comprising a surface cover part body, wherein the surface cover part body comprises an end wall 10 and a side wall 20 arranged around the end wall 10, the surface cover part is a spraying-free injection molding piece, and at least part of an outer side wall surface 21 of the side wall 20 is an appearance surface; the end wall 10 comprises a first plate section 12 and a second plate section 13, the first plate section 12 and the second plate section 13 are connected with the side wall 20, and a separation gap is arranged between the first plate section 12 and the second plate section 13; the cover member body includes a first structural body 14 and a second structural body 15 connected to the first structural body 14, the first structural body 14 being located at a front surface of the household appliance and the second structural body 15 being located at a rear surface of the household appliance when the cover member body is mounted on the household appliance; wherein the first structure 14 comprises a first plate segment 12, the first plate segment 12 having a gate molding zone 40 for corresponding to a gate 30 of a mold.

The surface cover part is made by adopting a spraying-free technology, is an injection molding product and is made of a spraying-free material, the spraying-free injection molding part has unique light and shadow effect and metallic luster after molding, and can achieve the appearance effect comparable to or better than spraying without secondary treatment. The face cover part comprises an end wall 10 and a side wall 20 arranged around the end wall 10, wherein a separation gap is arranged between the first plate section 12 and the second plate section 13 of the end wall 10 so that the two are arranged separately, namely the two are not directly connected; the gate forming region 40 is located on the first plate segment 12 to ensure that the injection molding melt passes through the gate 30 and the first plate segment 12 to preferentially fill the sidewall 20, reducing flow marks on the outer sidewall surface 21; in addition, the first plate section 12 is a part of the first structural body 14 and the first structural body 14 is positioned on the front surface of the household appliance, so that the welding line is arranged on the outer side wall surface 21 of the second structural body, namely, the welding line is positioned in a place which is not easy to see by a user, and the appearance effect of the household appliance is improved. Therefore, the surface cover part solves the problem that the spraying-free injection molding part is easy to generate appearance defects.

When the mold is used to mold the cover member, the cavity of the mold is used to mold the cover member, the gate 30 (may also be called a gate) is in communication with the cavity, the material in the gate 30 forms a gate molding portion, and the area where the cover member is connected to the gate molding portion is referred to as a gate molding area 40.

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

The front surface of the household appliance is an end surface arranged towards a user, and the back surface of the household appliance is arranged opposite to the front surface of the household appliance; wherein, as shown in fig. 2, the front surface of the home appliance and the back surface of the home appliance are sequentially arranged along the x direction.

In particular, the sidewall 20 may be an annular sidewall; it is also possible that the two ends of the side wall 20 are not connected, instead of being annular side walls, i.e. in the circumferential direction of the end wall 10.

Specifically, the gate molding region 40 is located in the middle of the first structural body 14 in the circumferential direction of the face cover member body. The arrangement is such that the weld line is in the middle of the second structure 15, which is not easily visible to the user when in use, since the second structure 15 is on the back of the household appliance.

Preferably, the face cover member body is disposed symmetrically with respect to the reference face, and the first structural body 14 and the gate molding region 40 are disposed symmetrically with respect to the reference face. Such an arrangement further ensures that the weld line is not easily visible to the user when in use.

Specifically, the first top surface 11 of the end wall 10 is connected to the outer side wall surface 21, at least a portion of the first top surface 11 being a non-exterior surface, the first top surface 11 including a second top surface of the first plate segment 12 on which the gate molding zone 40 is located. Such an arrangement reduces flow marks on the outer sidewall surface 21.

Specifically, the first top surface 11 is a non-exterior surface, and the outer side wall surface 21 is an exterior surface; the bottom surface of the end wall 10 disposed opposite to the first top surface 11 is a non-exterior surface, and the inner wall surface of the side wall 20 disposed opposite to the outer wall surface 21 is a non-exterior surface.

In the present embodiment, the second plate section 13 is provided with a first through hole 131. The open pore structure can ensure the assembly of the surface cover part and other parts of the household appliance; at the same time, the open cell structure increases the resistance to flow of the injection molding melt in the end wall 10, allowing the end wall 10 to fill later, reducing flow marks on the outer sidewall surface 21.

Alternatively, the number of the first through holes 131 is plural, and the plural first through holes 131 are arranged at intervals.

Preferably, the second plate section 13 is provided with at least three first through holes 131.

In the present embodiment, the second plate section 13 includes a first connection plate 132 and a second connection plate 133, the first connection plate 132 is connected with the side wall 20 through the second connection plate 133, and the thickness of the second connection plate 133 is smaller than that of the first connection plate 132. This arrangement increases the resistance of the injection melt flowing from the side wall 20 to the end wall 10, prioritizing the filling of the side wall 20, retarding the filling of the end wall 10, and reducing flow marks on the outer side wall surface 21.

The thickness direction of the second connection plate 133 and the thickness direction of the first connection plate 132 are both the up-down direction in fig. 3.

In this embodiment, the second plate section 13 is provided with a recess 134. The recess 134 is of a thinned construction, i.e. the thickness at the second plate section 13 where the recess 134 is provided is reduced to increase the resistance to flow of the injection melt at the end wall 10, allowing the injection melt to lag the filling at the end wall 10.

Specifically, the recess 134 is provided on the first top surface 11.

In the present embodiment, the filling end of the second plate section 13 is provided with a second through hole 135. The filling end is provided with a hollowed-out structure for intercepting the flow marks formed by the end wall 10 downstream thereof, it being seen that the end of a portion of the appearance defects ends in the hollowed-out structure. The number of appearance defects is reduced, and the shape of the welding line is more regular.

In this embodiment, the length of the cover member in any direction of extension thereof is 400mm or less. Such an arrangement can reduce the risk of flow marks.

Specifically, when the length of the face cover member in any extending direction thereof is 400mm or less, the face cover member has only one gate molding region 40, and such arrangement can reduce the generation of weld lines, solving the problem that the spray-free injection molded part is liable to cause appearance defects.

In this embodiment, the appearance surface of the surface cover member is provided with a drawn yarn, and the extending direction of the drawn yarn is parallel to the flow direction of the injection melt. If flow marks appear on the appearance surface, the direction of the flow marks is in the same direction as the flow direction, and the extending direction of the wiredrawing lines is parallel to the flow direction of the melt, so that the flow marks can be covered by the lines of the wiredrawing lines, and the flow marks have a covering effect.

The drawn lines are formed on the surface of the exterior member by surface drawing treatment, which is a surface treatment means for achieving a decorative effect.

In this embodiment, the face cover 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.

Alternatively, the fibers are nylon or natural fibers.

The face cover part of this application reduces flow mark, runner line and welding line in a large number when using exempting from the spraying material, guarantees that the outward appearance is good.

The invention also provides a household appliance comprising the surface cover component, wherein the surface cover component is the surface cover component in the embodiment.

Specifically, the household appliance is an electric cooker.

The present invention also provides a mold having a cavity for forming the face cover member in the above embodiment, the mold further having a gate 30, the gate 30 being in communication with the cavity.

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

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 capable of being practiced otherwise than as specifically illustrated and 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 … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative 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 in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

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. A face cover part comprising a face cover part body comprising an end wall (10) and a side wall (20) arranged around the end wall (10), characterized in that the face cover part is a spray-free injection molded part, and at least part of an outer side wall surface (21) of the side wall (20) is an appearance surface;

the end wall (10) comprises a first plate section (12) and a second plate section (13), wherein the first plate section (12) and the second plate section (13) are connected with the side wall (20), and a separation gap is formed between the first plate section (12) and the second plate section (13);

the face cover part body comprises a first structural body (14) and a second structural body (15) connected with the first structural body (14), when the face cover part body is installed on a household appliance, the first structural body (14) is positioned on the front surface of the household appliance, and the second structural body (15) is positioned on the back surface of the household appliance;

wherein the first structure (14) comprises the first plate section (12), the first plate section (12) having a gate molding zone (40) for corresponding to a gate (30) of a mold.

2. The face cover part according to claim 1, characterized in that the gate molding zone (40) is located in the middle of the first structural body (14) in the circumferential direction of the face cover part body.

3. The face cover component of claim 1, wherein the face cover component body is symmetrically disposed with respect to a reference plane, the first structure (14) and the gate molding region (40) being symmetrically disposed with respect to the reference plane.

4. The cover part according to claim 1, characterized in that a first top surface (11) of the end wall (10) is connected to the outer side wall surface (21), at least part of the first top surface (11) being a non-exterior surface, the first top surface (11) comprising a second top surface of the first plate section (12), the gate forming zone (40) being located on the second top surface.

5. The cover part according to any one of claims 1 to 4, characterized in that the second plate section (13) is provided with a first through hole (131).

6. The cover part according to claim 5, wherein the first through holes (131) are plural, and the plural first through holes (131) are arranged at intervals.

7. The face cover part according to any one of claims 1 to 4, characterized in that the second plate section (13) comprises a first connection plate (132) and a second connection plate (133), the first connection plate (132) being connected with the side wall (20) by means of the second connection plate (133), the second connection plate (133) having a thickness that is smaller than the thickness of the first connection plate (132).

8. The cover part according to any one of claims 1 to 4, characterized in that the second plate section (13) is provided with a groove (134).

9. The cover part according to any one of claims 1 to 4, characterized in that the filling end of the second plate section (13) is provided with a second through hole (135).

10. The cover member according to any one of claims 1 to 4, wherein the length of the cover member in any direction of extension thereof is less than or equal to 400mm.

11. A household appliance comprising a cover part, characterized in that the cover part is a cover part according to any one of claims 1 to 10.

12. A mould, characterized in that it has a cavity for forming the cover part according to any one of claims 1 to 10, and that it has a gate (30), said gate (30) being in communication with said cavity.