CN217073109U

CN217073109U - Cover plate component, household appliance and mold

Info

Publication number: CN217073109U
Application number: CN202123449367.6U
Authority: CN
Inventors: 龙云钲; 李林仕; 李朝伟; 阳涛; 刘秋元; 王云飞
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 a cover plate component, a household appliance and a mould, wherein a cover plate body of the cover plate component comprises a first plate section, a second plate section and a third plate section which are sequentially arranged along a first extending direction, and the second plate section is provided with a pouring gate forming area corresponding to a pouring gate of the mould; the thickness of the second plate section is gradually reduced from the gate forming area to the first connecting end of the second plate section along the direction opposite to the first extending direction; the thickness of the second plate section is gradually reduced from the gate forming area to the second connecting end of the second plate section along the first extending direction; the thickness of the end, connected with the first connecting end, of the first plate section is equal to that of the first connecting end and is the maximum thickness of the first plate section, and the thickness of the end, connected with the second connecting end, of the third plate section is equal to that of the second connecting end and is the maximum thickness of the third plate section. The problem that the spraying-free injection molding part in the prior art easily generates appearance defects is solved by the cover plate component.

Description

Cover plate component, household appliance and mold

Technical Field

The utility model relates to a domestic appliance field particularly, relates to a apron part, domestic appliance and mould.

Background

At present, household appliances generally adopt a spraying process to carry out surface treatment on injection parts so as to realize the improvement of various colors and appearance textures, and can 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 aims to provide a apron 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 a cover plate component, including a cover plate body, the cover plate body includes a first plate section, a second plate section and a third plate section sequentially arranged along a first extending direction, a first connecting end of the second plate section is connected with the first plate section, a second connecting end of the second plate section is connected with the third plate section, the cover plate component is a spray-free injection molding, the second plate section has a gate forming area corresponding to a gate of a mold; the thickness of the second plate section is gradually reduced from the gate forming area to the first connecting end along the direction opposite to the first extending direction; along the first extending direction, the thickness of the second plate section is gradually reduced from the gate forming area to the second connecting end; the thickness of the end, connected with the first connecting end, of the first plate section is equal to that of the first connecting end and is the maximum thickness of the first plate section, and the thickness of the end, connected with the second connecting end, of the third plate section is equal to that of the second connecting end and is the maximum thickness of the third plate section.

Furthermore, along the third extending direction, the width of the first plate section along the first extending direction is unchanged, the width of the second plate section along the first extending direction is unchanged, and the width of the third plate section along the first extending direction is unchanged; the width of the first plate section along the first extending direction, the width of the second plate section along the first extending direction and the width of the third plate section along the first extending direction are equal; wherein the third extending direction is perpendicular to the first extending direction.

Further, the cover plate body comprises a top surface, a bottom surface and a side wall extending in the circumferential direction of the cover plate body, wherein the top surface is an appearance surface, and at least part of the side wall and the bottom surface are non-appearance surfaces; wherein the gate forming area is disposed on the non-exterior surface.

Further, the gate forming area is arranged on the bottom surface and extends to the connecting position of the bottom 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 bottom surface.

Furthermore, the bottom surface and the side wall are in transition connection through a fillet; when the gate forming area is arranged on the bottom surface and extends to the joint of the bottom surface and the side wall, the gate forming area extends to the joint of the fillet and the side wall.

Further, the length of the gate molding area in 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.

Further, the cover member further includes: and the positioning part is arranged on the non-appearance surface of the cover plate body, and the maximum distance between the positioning part and the end part of the cover plate body is less than or equal to 50 mm.

Further, the positioning portion is provided on the second plate section.

Further, the positioning part is of a convex structure or a concave structure.

Further, the cover plate component further comprises a fixing portion, and the fixing portion is arranged on the side wall and arranged on the non-appearance surface.

Further, the side wall comprises a first side wall, and the first side wall comprises a first wall surface, a second wall surface and a third wall surface which are sequentially connected along the extending direction of the first side wall; in the direction perpendicular to the extending direction of the first side wall, the first wall surface, the second wall surface and the third wall surface are all equal-width wall surfaces; the width of the first wall surface along the extending direction of the first side wall, the width of the second wall surface along the extending direction of the first side wall and the width of the third wall surface along the extending direction of the first side wall are equal; the first wall surface and/or the third wall surface are provided with fixing parts.

Furthermore, the fixing part is a buckle; and/or the fixing part is of a step structure; andor, the fixed part comprises a first bulge part, and a connecting hole is arranged on the first bulge part.

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

According to a further aspect of the present invention, there is provided a mold, wherein the mold has a cavity for forming the above-mentioned cover plate part, and the mold further has a gate, which is communicated with the cavity.

Further, the gate is a fan gate.

The utility model discloses a apron part adopts and exempts from the spraying technique to make, and this outward 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 outward appearance effect that compares favorably or is superior to the spraying, and this technique possesses advantages such as excellent, the low cost of function, environmental protection. The sprue forming area of the cover plate component is arranged on the second plate section of the cover plate body, the middle of the cover plate body is thick, two sides of the cover plate body are thin, so that middle diversion is formed, injection molding of a melt is facilitated, a fountain flows, and generation of flow marks is prevented.

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 isometric view of an angle of an embodiment of a cover member according to the present invention;

fig. 2 shows a cross-sectional view of an embodiment of a cover part according to the invention;

fig. 3 shows a top view of an embodiment of a cover plate member according to the invention;

FIG. 4 shows a cross-sectional view at section N-N of the cover member of FIG. 3;

fig. 5 shows a side view of an embodiment of a cover plate member according to the invention;

fig. 6 shows a front view of an embodiment of a cover plate member according to the invention; and

fig. 7 shows an isometric view of another angle of an embodiment of a cover member according to the invention.

Wherein the figures include the following reference numerals:

10. a cover plate body; 11. a first plate section; 12. a second plate section; 13. a third plate section; 14. a top surface; 15. a bottom surface; 16. a side wall; 17. a first side wall; 171. a first wall surface; 172. a second wall surface; 173. a third wall surface; 20. a gate; 30. a gate forming area; 40. a positioning part; 50. a fixed part; 60. a second boss portion; 70. a buffer flow channel; 80. a melt inlet.

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 a cover plate part, please refer to fig. 1 to 7, including cover plate body 10, cover plate body 10 includes first plate section 11, second plate section 12 and third plate section 13 that set gradually along first extending direction, and the first link of second plate section 12 is connected with first plate section 11, and the second link of second plate section 12 is connected with third plate section 13, and cover plate part is the spraying-free injection molding, and second plate section 12 has and is used for the runner shaping district 30 corresponding with runner 20 of mould; in the direction opposite to the first extending direction, the thickness of the second plate section 12 in the second extending direction gradually decreases from the gate forming area 30 to the first connection end; along the first extending direction, the thickness of the second plate segment 12 along the second extending direction is gradually reduced from the gate forming area 30 to the second connecting end; the thickness of the end, connected with the first connecting end, of the first plate section 11 is equal to that of the first connecting end and is the maximum thickness of the first plate section 11, and the thickness of the end, connected with the second connecting end, of the third plate section 13 is equal to that of the second connecting end and is the maximum thickness of the third plate section 13; wherein the second extending direction is perpendicular to the first extending direction.

The utility model discloses a apron part adopts and exempts from the spraying technique to make, and this outward 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 outward appearance effect that compares favorably or is superior to the spraying, and this technique possesses advantages such as excellent, the low cost of function, environmental protection. The gate forming area 30 of the cover plate component is arranged on the second plate section 12 of the cover plate body 10, the middle of the cover plate body 10 is thick, and two sides of the cover plate body are thin, so that middle diversion is formed, the injection molding of melt is facilitated, the fountain flow is formed, and the generation of flow marks is prevented.

Wherein, the first extending direction is the X direction in fig. 2, and the second extending direction is the Z direction in fig. 2.

Specifically, the gate forming area 30 is an axisymmetric structure, and the first reference plane is perpendicular to the gate forming area 30 and coincides with the symmetry axis of the gate forming area 30; the thickness of the second plate section 12 in the second extending direction gradually decreases from the gate forming area 30 to the first connecting end, that is, the thickness of the second plate section 12 in the second extending direction gradually decreases from the first reference surface to the first connecting end; the thickness of the second plate section 12 in the second extending direction gradually decreases from the gate forming area 30 to the second connecting end, which means that the thickness of the second plate section 12 in the second extending direction gradually decreases from the first reference surface to the second connecting end.

When the cover plate component is injection molded by using a mold, a cavity of the mold is used for molding the cover plate component, a gate 20 (also called a sprue gate) is communicated with the cavity, a material in the gate 20 forms a gate molding part, and a region where the cover plate component is connected with the gate molding part is a gate molding region 30.

Specifically, in the third extending direction, the width of the first plate segment 11 in the first extending direction is constant, the width of the second plate segment 12 in the first extending direction is constant, and the width of the third plate segment 13 in the first extending direction is constant; the width of the first plate section 11 in the first extending direction, the width of the second plate section 12 in the first extending direction and the width of the third plate section 13 in the first extending direction are all equal; the third extending direction is perpendicular to the first extending direction, and the third extending direction is the Y direction in fig. 3. The width of the first plate section 11 in the first extending direction, the width of the second plate section 12 in the first extending direction and the width of the third plate section 13 in the first extending direction are equal, so that glue inlet flow balance and pressure balance can be realized, injection molding melt almost reaches and fills the plate sections on two sides of the gate forming area 30 at the same time, symmetrical fountain flow is formed, flow marks are reduced, and the problem that spraying-free injection molding parts are easy to generate appearance defects is solved; and the pressure equalization is beneficial to controlling the buckling deformation of the cover plate component.

Preferably, the cover body 10 is arranged symmetrically with respect to a first plane of symmetry, which is perpendicular to the first direction of extension, and the gate forming area 30 is arranged symmetrically with respect to the first plane of symmetry.

In the present embodiment, the cap body 10 includes a top surface 14, a bottom surface 15, and a side wall 16 extending in a circumferential direction of the cap body 10, the top surface 14 being a design surface, at least a portion of the side wall 16 and the bottom surface 15 being non-design surfaces; wherein the gate forming area 30 is provided on the non-exterior surface.

When the cover component is applied to a household appliance, the appearance surface of the cover body 10 is a component of the appearance of the household appliance, that is, the appearance surface of the cover body 10 is a surface exposed in an application environment and visible to a user; the non-exterior surface of the cover body 10 is located inside the household appliance, that is, the non-exterior surface of the cover body 10 is a surface hidden inside the household appliance and not seen by a user.

Optionally, a gate-forming region 30 is provided on the bottom surface 15 and extends to the junction of the bottom surface 15 and the sidewall 16; alternatively, the gate-forming region 30 is disposed on the sidewall 16; alternatively, the gate-forming region 30 is disposed on the sidewall 16 and the bottom surface 15.

Specifically, the bottom surface 15 and the side wall 16 are connected by a fillet transition; where the gate shaped region 30 is disposed on the bottom surface 15 and extends to the junction of the bottom surface 15 and the sidewall 16, the gate shaped region 30 extends to the junction of the fillet and the sidewall 16. The round corners can reduce the generation of flow marks on the appearance surface.

In the present embodiment, the length of the gate forming region 30 in the length direction thereof is greater than or equal to 8 mm; and/or the width of the gate-forming region 30 in its width direction ranges between 0.6mm and 2 mm. It should be noted that the length direction of the gate forming area 30 is the width direction of the gate 20, that is, the direction perpendicular to the mold opening direction of the mold, that is, the left-right direction in fig. 2; the width direction of the gate forming region 30 is the thickness direction of the gate 20, i.e., the mold opening direction of the mold, i.e., the up-down direction in fig. 2. The arrangement can ensure the low-flow-rate flow of the injection molding melt and reduce the generation of flow marks on the appearance surface.

Specifically, the range of 0.6mm to 2mm includes 0.6mm and 2 mm.

In this embodiment, the cover member further includes: and a positioning part 40 disposed on the non-exterior surface of the cover plate body 10, wherein the maximum distance between the positioning part 40 and the end of the cover plate body 10 is less than or equal to 50 mm. Specifically, the positioning part 40 is used to position with other parts of the home appliance when the cover member is mounted on the home appliance. The maximum distance between the positioning part 40 and the end of the cover plate body 10 is less than or equal to 50mm, which can reduce the generation of flow marks on the appearance surface.

Specifically, the positioning portion 40 is provided on the second plate section 12. Such an arrangement can reduce the occurrence of flow marks on the appearance surface.

Specifically, the positioning portion 40 is a convex structure or a concave structure.

In the present embodiment, the cover member further includes a fixing portion 50, and the fixing portion 50 is disposed on the side wall 16 and on the non-exterior surface. The flow direction change is generated when the melt flows through the fixing part 50, and the edge (namely the side wall 16) of the fixing part 50 at the filling position can prevent the flow direction change from influencing the appearance surface and reduce the generation of flow marks on the appearance surface.

Specifically, the side wall 16 includes a first side wall 17, and the first side wall 17 includes a first wall surface 171, a second wall surface 172, and a third wall surface 173 connected in this order in an extending direction thereof; the first wall surface 171, the second wall surface 172, and the third wall surface 173 are all equal-width wall surfaces in a direction perpendicular to the extending direction of the first side wall 17; the width of the first wall surface 171 in the extending direction of the first sidewall 17, the width of the second wall surface 172 in the extending direction of the first sidewall 17, and the width of the third wall surface 173 in the extending direction of the first sidewall 17 are equal; the first wall 171 and/or the third wall 173 are provided with the fixing portion 50. The location of the retainer 50 is selected in the area near the edge 1/3 to facilitate controlling distortion and warpage during assembly.

Optionally, the fixing portion 50 is a snap; and/or, the fixing part 50 is of a step structure; and or, the fixing portion 50 includes a first protrusion portion on which a connection hole is provided.

In the present embodiment, the external appearance surface of the cover plate body 10 is provided with a second convex portion 60; in the flow direction of the injection molding melt, the minimum distance between the second projection 60 and the gate forming region 30 is greater than the maximum distance between the second projection 60 and the filling end of the design surface. Such an arrangement reduces the occurrence of flow marks on the appearance surface.

It should be noted that, in the flow direction of the injection mold melt, the minimum distance between the second protrusion 60 and the gate forming area 30 is greater than the maximum distance between the second protrusion 60 and the filling end of the design surface, which means that, in the cover part forming process, the minimum distance that the injection mold melt flows from the second protrusion 60 to the gate forming area 30 is greater than the maximum distance that the injection mold melt flows from the second protrusion 60 to the filling end of the design surface. The filling end of the design surface refers to the position of the design surface to which the injection molding melt finally flows during the molding of the design part.

Specifically, the height of the second projection 60 is less than or equal to 0.3 mm. Such an arrangement reduces the occurrence of flow marks on the appearance surface.

Specifically, the minimum distance between the second boss 60 and the gate molding region 30 is greater than or equal to 20 mm. Such an arrangement reduces the occurrence of flow marks on the appearance surface.

In this embodiment, the appearance surface of the cover plate body 10 is provided with a second concave portion; in the flow direction of the injection molding melt, the minimum distance between the second recess and the gate forming zone 30 is greater than the maximum distance between the second recess and the filling end of the design surface. Such an arrangement reduces the occurrence of flow marks on the appearance surface.

It should be noted that, in the flow direction of the injection melt, the minimum distance between the second recess and the gate forming area 30 is greater than the maximum distance between the second recess and the filling end of the appearance surface, which means that, in the cover plate component forming process, the minimum distance that the injection melt flows from the second recess to the gate forming area 30 is greater than the maximum distance that the injection melt flows from the second recess to the filling end of the appearance surface.

Specifically, the depth of the second recess is less than or equal to 0.3 mm. Such an arrangement reduces the occurrence of flow marks on the appearance surface.

Specifically, the minimum distance between the second recess and the gate forming region 30 is greater than or equal to 20 mm. Such an arrangement reduces the occurrence of flow marks on the appearance surface.

In this embodiment, the cover plate component is made of a spray-free material, and the spray-free material includes 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 this embodiment, the appearance surface of the cover plate body 10 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.

The utility model also provides a household appliance, including the apron part, wherein, the apron part is the apron 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 apron part in above-mentioned embodiment, and the mould still has runner 20, and runner 20 is linked together with the die cavity.

Preferably, the gate 20 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.

In this embodiment, the mold further has a buffer runner 70 and a melt inlet 80, a first end of the buffer runner 70 is communicated with the melt inlet 80, and the buffer runner 70 is communicated with one end of the gate 20 away from the mold cavity, so that the injection molding melt sequentially flows through the melt inlet 80, the buffer runner 70 and the gate 20 and then enters the mold cavity; the buffer flow passage 70 is a curved flow passage. The provision of the buffer runner 70 provides a buffer effect for the injection molding melt.

The buffer flow passage 70 is a curved flow passage, that is, the axis of the buffer flow passage 70 is a curve.

Optionally, the buffer flow passage 70 is an arc flow passage, i.e. the axis of the buffer flow passage 70 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:

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. A cover plate component comprises a cover plate body (10), wherein the cover plate body (10) comprises a first plate section (11), a second plate section (12) and a third plate section (13) which are sequentially arranged along a first extending direction, a first connecting end of the second plate section (12) is connected with the first plate section (11), a second connecting end of the second plate section (12) is connected with the third plate section (13), and the cover plate component is characterized in that the cover plate component is a spraying-free injection molding piece, and the second plate section (12) is provided with a pouring gate forming area (30) corresponding to a pouring gate (20) of a mold;

-the thickness of the second plate section (12) decreases from the gate-forming area (30) to the first connection end in a direction opposite to the first direction of extension; -the thickness of the second plate section (12) decreases gradually from the gate-forming region (30) to the second connection end in the first direction of extension; the thickness of the end, connected with the first connecting end, of the first plate section (11) is equal to that of the first connecting end and is the maximum thickness of the first plate section (11), and the thickness of the end, connected with the second connecting end, of the third plate section (13) is equal to that of the second connecting end and is the maximum thickness of the third plate section (13).

2. The cover element according to claim 1, characterized in that, in a third direction of extension, the first plate section (11) has a constant width in the first direction of extension, the second plate section (12) has a constant width in the first direction of extension, and the third plate section (13) has a constant width in the first direction of extension;

the width of the first plate section (11) in the first extension direction, the width of the second plate section (12) in the first extension direction and the width of the third plate section (13) in the first extension direction are all equal;

wherein the third extending direction is perpendicular to the first extending direction.

3. The cover member according to claim 1, wherein the cover body (10) comprises a top surface (14), a bottom surface (15) and a side wall (16) extending in a circumferential direction of the cover body (10), the top surface (14) being a design surface, at least a portion of the side wall (16) and the bottom surface (15) being non-design surfaces;

wherein the gate forming area (30) is provided on the non-exterior surface.

4. The cover part according to claim 3, characterized in that the gate-forming zone (30) is provided on the bottom surface (15) and extends to the connection of the bottom surface (15) and the side wall (16); or

The gate forming zone (30) being provided on the side wall (16); or

The gate forming zone (30) is disposed on the side wall (16) and the bottom surface (15).

5. The cover element according to claim 4, characterized in that the bottom surface (15) and the side wall (16) are connected by a rounded transition;

when the gate forming area (30) is arranged on the bottom surface (15) and extends to the joint of the bottom surface (15) and the side wall (16), the gate forming area (30) extends to the joint of the fillet and the side wall (16).

6. The cover member according to any one of claims 1 to 5,

the length of the gate molding area (30) in the length direction thereof is greater than or equal to 8 mm; and/or the presence of a gas in the gas,

the width of the gate molding area (30) in the width direction thereof ranges from 0.6mm to 2 mm.

7. The cover member according to any one of claims 1 to 5, further comprising:

and the positioning part (40) is arranged on the non-appearance surface of the cover plate body (10), and the maximum distance between the positioning part (40) and the end part of the cover plate body (10) is less than or equal to 50 mm.

8. The cover plate component according to claim 7, characterized in that the positioning portion (40) is provided on the second plate section (12).

9. The cover member according to claim 7, wherein the positioning portion (40) is a convex structure or a concave structure.

10. The cover member according to any one of claims 3 to 5, further comprising a fixing portion (50), the fixing portion (50) being provided on the side wall (16) and on the non-exterior surface.

11. The cover element according to claim 10, characterized in that said side wall (16) comprises a first side wall (17), said first side wall (17) comprising, along its extension, a first wall (171), a second wall (172) and a third wall (173) connected in succession; the first wall surface (171), the second wall surface (172), and the third wall surface (173) are all equal-width wall surfaces in a direction perpendicular to an extending direction of the first side wall (17);

the width of the first wall surface (171) in the extending direction of the first side wall (17), the width of the second wall surface (172) in the extending direction of the first side wall (17), and the width of the third wall surface (173) in the extending direction of the first side wall (17) are equal; the first wall surface (171) and/or the third wall surface (173) is provided with the fixing portion (50).

12. The cover member according to claim 10, wherein the fixing portion (50) is a snap; and/or the presence of a gas in the gas,

the fixing part (50) is of a step structure; and or (b) a,

the fixing part (50) comprises a first protruding part, and a connecting hole is formed in the first protruding part.

13. A domestic appliance comprising a cover member, characterized in that the cover member is as claimed in any one of claims 1 to 12.

14. A mould, characterized in that it has a cavity for forming a cover part according to any one of claims 1-12, and that it has a gate (20), which gate (20) communicates with the cavity.

15. The mold according to claim 14, wherein the gate (20) is a fan gate.