CN116112852A

CN116112852A - Porous structure loudspeaker cover

Info

Publication number: CN116112852A
Application number: CN202310246541.1A
Authority: CN
Inventors: 王定国
Original assignee: Suzhou Bashi Maipu Technology Co ltd
Current assignee: Suzhou Bashi Maipu Technology Co ltd
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2023-05-12

Abstract

The invention discloses a porous structure loudspeaker cover, which comprises a cover body, wherein the cover body is arranged on a middle decorative plate assembly, sound transmission holes which are annularly arranged are sequentially arranged on the cover body, the sound transmission holes are centered on an axle center and extend outwards, a main positioning pin is arranged at the edge of the back surface of the cover body, an auxiliary positioning pin is also arranged at the edge of the back surface of the cover body, the outline size of the cover body is 92.8mm long, 92.8mm wide and 22.3mm high, the front surface of the cover body is in a cambered surface shape, the auxiliary positioning pin comprises a first positioning pin, a second positioning pin, a third positioning pin and a fourth positioning pin, and the diameter size of the holes and the wall thickness size of products are reasonably designed so that surface shrinkage caused by over-thick wall thickness can not occur when injection molding products can be achieved, and serious appearance defects can not be caused by too large hole diameters.

Description

Porous structure loudspeaker cover

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a porous structure loudspeaker cover cap.

Background

The existing automobile loudspeaker cover cap has the defects that the sound transmission holes are too small or too few to influence the sound quality due to the appearance problem of the process product, or the holes are too large to cause the production process difficulty and obvious appearance defects due to the fact that the sound quality is influenced. Making the consumer's pursuit of high quality products difficult to achieve.

Disclosure of Invention

In order to solve the technical problems, the invention provides a porous structure loudspeaker cover, which comprises a cover body, wherein the cover body is arranged on a middle decoration plate assembly, sound transmission holes which are arranged in an annular manner and are sequentially extended outwards by taking an axle center as a center are formed in the cover body, and a main positioning pin is arranged at the edge of the back surface of the cover body.

Preferably: and a secondary locating pin is further arranged at the edge of the back face of the cover body.

Preferably: the outer contour dimensions of the cover body are 92.8mm long, 92.8mm wide and 22.3mm high, and the front surface of the cover body is arc-shaped.

Preferably: the auxiliary locating pins comprise a first locating pin, a second locating pin, a third locating pin and a fourth locating pin.

Preferably: the first locating pin comprises a first locating surface, the first locating surface is rectangular, a first installation surface is arranged on the inner side of the first locating surface, and the width of the first installation surface is larger than that of the second locating surface.

Preferably: the second locating pin is located between the first locating pin and the main locating pin, the second locating pin comprises a second locating surface, a second installation surface is arranged on the inner side of the second locating surface, and the width of the second installation surface is larger than that of the second locating surface.

Preferably: the included angle between the axial lead of the second locating pin and the axial lead of the first locating pin is 90 degrees.

Preferably: the third locating pin is located at the other side of the main locating pin, the third locating pin comprises a third locating surface, a third installation surface is arranged on the inner side of the third locating surface, and the width of the third installation surface is larger than that of the third locating surface.

Preferably: the inner wall of the third mounting surface is provided with a shape surface which is perpendicular to the third mounting surface.

Preferably: the fourth locating pin is located between the third locating pin and the first locating pin, and the fourth locating pin is arranged in an arc shape.

The invention has the technical effects and advantages that:

the diameter size of the hole and the wall thickness size of the product are reasonably designed, so that the surface shrinkage caused by the too thick wall thickness can not occur in the injection molding process of the product, and serious appearance defects caused by the too large hole diameter can not occur, thereby meeting the high quality requirement.

Drawings

Fig. 1 is a schematic structural diagram of a speaker cover with a porous structure according to an embodiment of the present application;

fig. 2 is a schematic diagram of a mounting structure of a porous speaker cover provided in an embodiment of the present application;

fig. 3 is a rear view of a porous speaker cover provided in an embodiment of the present application.

In the figure: 1. a cover body; 2. a sound transmission hole; 3. a main locating pin; 4. a first positioning pin; 401. a first positioning surface; 402. a first mounting surface; 5. a second positioning pin; 501. a second positioning surface; 502. a second mounting surface; 6. a third locating pin; 601. a third positioning surface; 602. a third mounting surface; 603. forming a surface; 7. a fourth locating pin; 8. and a middle ornamental plate assembly.

Detailed Description

The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Referring to fig. 1-2, in this embodiment, a speaker cover with a porous structure is provided, including a cover body 1, the cover body 1 is mounted on a middle decoration plate assembly 8, sound transmission holes 2 are annularly arranged on the cover body 1, which are centered on an axle center and sequentially extend outwards, the outer contour dimension of the cover body 1 is 92.8mm long, 92.8mm wide and 22.3mm high, the front surface of the cover body 1 is formed into a cambered surface shape, a main positioning pin 3 is arranged at the edge of the back surface of the cover body 1, the cross section of the main positioning pin 3 is cross-shaped, and an auxiliary positioning pin is also arranged at the edge of the back surface of the cover body 1.

Referring to fig. 3, the auxiliary positioning pin includes a first positioning pin 4, a second positioning pin 5, a third positioning pin 6 and a fourth positioning pin 7, the first positioning pin 4 includes a first positioning surface 401, the first positioning surface 401 is rectangular, a first mounting surface 402 is arranged on the inner side of the first positioning surface 401, and the width of the first mounting surface 402 is larger than that of the second positioning surface 401;

the second positioning pin 5 is positioned between the first positioning pin 4 and the main positioning pin 3, the second positioning pin 5 comprises a second positioning surface 501, a second mounting surface 502 is arranged on the inner side of the second positioning surface 501, the width of the second mounting surface 502 is larger than that of the second positioning surface 501, and an included angle between the axial lead of the second positioning pin 5 and the axial lead of the first positioning pin 4 is 90 degrees;

the third locating pin 6 is positioned at the other side of the main locating pin 3, the third locating pin 6 comprises a third locating surface 601, a third installation surface 602 is arranged on the inner side of the third locating surface 601, the width of the third installation surface 602 is larger than that of the third locating surface 601, a shape surface 603 is arranged on the inner wall of the third installation surface 602, and the shape surface 603 is perpendicular to the third installation surface 602;

the fourth positioning pin 7 is located between the third positioning pin 6 and the first positioning pin 4, and the fourth positioning pin 7 is arranged in an arc shape.

The loudspeaker cover cap has the advantages of flat surface, clear outline, no obvious sink mark, no silver wire, no obvious welding mark, no ripple, no fault, no cracking, no bubble, no sink mark, no scratch and no warping.

Gate requirements of speaker covers:

1. the position of the gate needs to consider that the follow-up gate mark removal cannot influence the appearance;

2. the setting position of the pouring gate needs to consider the flow length ratio, so that insufficient filling or shrinkage marks are avoided;

3. the arrangement of the pouring gate needs to be subjected to die flow analysis for trapping gas, welding marks, sink marks, material shortage and deformation;

4. the demolding direction is the demolding direction of the left rear door tweeter cover, the three-dimensional data is reflected in the dermatoglyph area, and the color and texture requirements meet the color and texture definition book;

5. the partial sections are identical in structure, only one section is cut, and the other sections which are not cut have identical form and position tolerance and slightly different sizes.

The working principle of the invention is as follows:

the diameter size of the holes and the wall thickness size of the product are reasonably designed, so that the problems that the surface is shrunk caused by too thick wall thickness and serious appearance defects are not caused by too large hole diameter when an injection molding product is achieved, special exhaust steel is used for manufacturing a die to improve the appearance welding line and the air trapping problem which are very easy to occur due to a porous structure, the middle part of the product is provided with a circular insert with a special structure on the die, and the size is proper, so that the injection molding glue removing and air exhausting problems of all holes can be considered.

It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The utility model provides a porous structure speaker shroud, includes shroud body (1), on plaque assembly (8) in shroud body (1) are installed, its characterized in that, on shroud body (1) use the axle center as center and extend outward in proper order be annular arrangement's sound transmission hole (2), the back edge of shroud body (1) is provided with main locating pin (3).

2. The cellular structure loudspeaker cover according to claim 1, characterized in that the cover body (1) is further provided with a secondary locating pin at the back edge.

3. The porous structure loudspeaker cover according to claim 1, characterized in that the outer contour dimensions of the cover body (1) are 92.8mm long, 92.8mm wide and 22.3mm high, and the front surface of the cover body (1) is arc-shaped.

4. The cellular structure loudspeaker cover according to claim 2, wherein the secondary positioning pins comprise a first positioning pin (4), a second positioning pin (5), a third positioning pin (6) and a fourth positioning pin (7).

5. The speaker cover according to claim 4, wherein the first positioning pin (4) includes a first positioning surface (401), the first positioning surface (401) is rectangular, a first mounting surface (402) is provided inside the first positioning surface (401), and a width of the first mounting surface (402) is larger than a width of the second positioning surface (401).

6. The porous structure speaker cover according to claim 5, wherein the second positioning pin (5) is located between the first positioning pin (4) and the main positioning pin (3), the second positioning pin (5) includes a second positioning surface (501), a second mounting surface (502) is provided inside the second positioning surface (501), and the width of the second mounting surface (502) is larger than that of the second positioning surface (501).

7. The porous structure speaker cover according to claim 6, wherein an angle between an axis of the second positioning pin (5) and an axis of the first positioning pin (4) is 90 °.

8. The porous structure speaker cover according to claim 4, wherein the third positioning pin (6) is located at the other side of the main positioning pin (3), the third positioning pin (6) includes a third positioning surface (601), a third mounting surface (602) is provided inside the third positioning surface (601), and the width of the third mounting surface (602) is larger than the third positioning surface (601).

9. The porous-structure speaker cover according to claim 8, wherein the inner wall of the third mounting surface (602) is provided with a shaped surface (603), and the shaped surface (603) is perpendicular to the third mounting surface (602).

10. The cellular structure loudspeaker cover according to claim 4, characterized in that the fourth positioning pin (7) is located between the third positioning pin (6) and the first positioning pin (4), and that the fourth positioning pin (7) is arranged in an arc shape.