Patent Publication Number: US-2021189568-A1

Title: Coating carrier assembly and coating device

Description:
FIELD 
     The present disclosure relates to a coating carrier assembly and a coating device using the coating carrier assembly. 
     BACKGROUND 
     In a lens module, in order to solve imaging problems such as flare caused by stray light, a black film is often plated on a non-central area of a lens by a coating machine. The black film is ring-shaped. However, masking marks are often occurred in the black film by ribbed plate. The masking marks may cause the non-center area of the lens not to be coated with the black film, thereby failing to completely solve imaging problems such as flare caused by stray light. 
     Therefore, there is room for improvement in the art. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Implementations of the present disclosure will now be described, by way of embodiments, with reference to the attached figures. 
         FIG. 1  is a module view of an embodiment of a coating device according to the present disclosure. 
         FIG. 2  is a perspective view of a coating carrier assembly of the coating device of  FIG. 1 . 
         FIG. 3  is an exploded view of the coating carrier assembly of  FIG. 2 . 
         FIG. 4  is a perspective view of a supporting plate and supporting units of the coating carrier assembly of  FIG. 3 . 
         FIG. 5  is an enlarged view of a supporting unit of  FIG. 3 . 
         FIG. 6  is an enlarged view of a supporting unit of  FIG. 4 . 
         FIG. 7  is a cross-sectional view of a supporting unit of  FIG. 2 . 
     
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
     It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts have been exaggerated to better illustrate details and features of the present disclosure 
     Several definitions that apply throughout this disclosure will now be presented. 
     The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series, and the like. 
       FIGS. 1 and 7  show an embodiment of a coating device  1000 . The coating device  1000  is used to plate a coating on a to-be-plated component  300 . The to-be-plated component  300  includes a convex portion  301  and an edge portion  302 . The edge portion  302  surrounds the convex portion  301  and is connected to the convex portion  301 . A coating area  303  is defined on the edge portion  302 . 
     Referring to  FIG. 1 , the coating device  1000  includes a coating carrier assembly  100  and a coating machine  200 . The coating machine  200  faces the coating carrier assembly  100 . The coating carrier assembly  100  is used to support and fix the to-be-plated component  300 . The coating machine  200  is used to form a coating on the to-be-plated component  300 . In at least one embodiment, the coating is a ring-shaped black film. 
     The coating carrier assembly  100  includes a supporting plate  20 . The to-be-plated component  300  is formed on the supporting plate  20 . 
     The supporting plate  20  includes a first surface  21  and a second surface  22  opposite to the first surface  21 . 
     The coating carrier assembly  100  further includes at least one supporting unit  30  formed in the supporting plate  20  in an array. 
     Each of the at least one supporting unit  30  includes a first supporting portion  31 , a second supporting portion  32 , and at least two ribbed plates  34 . An annular groove  33  is defined between the first supporting portion  31  and the second supporting portion  32 . The at least two ribbed plates  34  are formed in the annular groove  33  and connected to the first supporting portion  31  and the second supporting portion  32 . Each of the at least two ribbed plates  34  includes an overflow plating groove  342 . The overflow plating groove  342  has an opening that faces the to-be-plated component  300 . The overflow plating groove  342  is connected to the annular groove  33 . 
     The first supporting portion  31  includes a third surface  311 , a fourth surface  312  opposite to the third surface  311 , and an outer surface  313  connected to the third surface  311  and the fourth surface  312 . A size of the third surface  311  is larger than that of the fourth surface  312 . The outer surface  313  is tapered. A size of an end of the outer surface  313  facing the to-be-plated component  300  is larger than a size of an end of the outer surface  313  away from the to-be-plated component  300 . 
     The first supporting portion  31  further includes a first receiving groove  314 . The first receiving groove  314  is recessed from the third surface  311  to the fourth surface  312 . The convex portion  301  of the to-be-plated component  300  is received in the first receiving groove  314 . 
     The second supporting portion  32  includes an inner surface  321 , and the inner surface  321  is tapered. A size of an end of the inner surface  321  facing the to-be-plated component  300  is smaller than a size of an end of the inner surface  321  away from the to-be-plated component  300 . The outer surface  313  and the inner surface  321  define the annular groove  33 . The edge portion  302  of the to-be-plated component  300  is formed on the second supporting portion  32 . 
     In at least one embodiment, the annular groove  33  is recessed from the first surface  21  to the second surface  22 . The annular groove  33  penetrates through the supporting plate  20 . The first supporting portion  31  and the second supporting portion  32  are both a part of the supporting plate  20 . The coating machine  200  faces the annular groove  33  and is opposite to the to-be-plated component  300 . 
     Each of the at least two ribbed plates  34  further includes a fifth surface  341  parallel to the fourth surface  312 . The fifth surface  341  is closer to the fourth surface  312  than the third surface  311 . The overflow plating groove  342  is formed from a surface opposite to the fifth surface  341  toward the fifth surface  341 . In at least one embodiment, the fourth surface  312  is flush with the fifth surface  341 . 
     In at least one embodiment, a width of an end of the overflow plating groove  342  facing the to-be-plated component  300  is equal to a width of an end of the annular groove  33  facing the to-be-plated component  300 . A width of an end of the overflow plating groove  342  away from the to-be-plated component  300  may be greater than or equal to or smaller than a width of the annular groove  33  facing the to-be-plated component  300 . 
     The coating area  303  faces the annular groove  33  and the overflow plating groove  342 . 
     Referring to  FIG. 3 , the coating carrier assembly  100  further includes a cover plate  10  formed on the supporting plate  20 . At least one second receiving groove  13  (shown in  FIG. 7 ) is defined in the cover plate  10 . The to-be-plated component  300  is received in the at least one second receiving groove  13 . A diameter of the second receiving groove  13  is larger than an outer diameter of the annular groove  33 . 
     The cover plate  10  includes a sixth surface  11  and a seventh surface  12  opposite to the sixth surface  11 . The second receiving groove  13  is recessed from the sixth surface  11  to the seventh surface  12 . 
     With the above configuration, the coating carrier assembly  100  and the coating device  1000  are provided with the annular groove  33  facing the coating area  303  of the to-be-plated component  300  between the first supporting portion  31  and the second supporting portion  32 , and the overflow plating groove  342  facing the coating area  303  of the to-be-plated component  300  is formed on the at least two ribbed plates  34 . Plating liquid from the coating machine  200  can be sprayed on the coating area  303  of the to-be-plated component  300  through the annular grooves  33  between different ribbed plates  34  and on the coating area  303  covered by the ribbed plate  34  through the overflow plating groove  342 , so as to obtain a coating without shielding traces. Furthermore, the coating carrier assembly  100  and the coating device  1000  can save costs and improve imaging quality of a camera module. 
     The embodiments shown and described above are only examples. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, including matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.