Mobile phone middle frame and mobile phone

Abstract

Embodiments of the present application disclose a mobile phone middle frame and a mobile phone. The mobile phone middle frame comprises an outer frame, a middle plate, and a connecting layer. The outer frame is provided with a plurality of first connecting portions, the middle plate is provided with second connecting portions respectively corresponding to the first connecting portions, and each corresponding first connecting portion and second connecting portion are connected by means of welding. The connecting layer is coated on the end face, used for welding with the second connecting portion, of the first connecting portion, and the material of the connecting layer is consistent with that of the second connecting portion; or the connecting layer is coated on the end face, used for welding with the first connecting portion, of the second connecting portion, and the material of the connecting layer is consistent with that of the first connecting portion. The end face, used for welding, of the first connecting portion or the second connecting portion is coated with one connecting layer, and the material of the connecting layer is consistent with that of an object needing to be welded, in this way, the occurrence of a poor welding effect caused by welding of different materials can be avoided, ensuring the reliability of connection between the outer frame and the middle plate, thereby improving the reliability of the whole middle frame.

Description

Mobile phone middle frame and mobile phone Technical Field

[0001] The present application relates to the field of mobile phone technology, and in particular to a mobile phone middle frame and a mobile phone. Background Art

[0002] The phone's midframe, serving as the phone's support, consists primarily of an outer frame and a midplate connected to the outer frame. Multiple connection points exist between the outer frame and the midplate, securing them together. In related art, welding is used to connect the outer frame and the midplate at multiple locations. Technical issues

[0003] However, the outer frame and midplane are typically made of different materials, and welding them together involves welding different materials. These materials have varying properties, primarily in melting point, thermal conductivity, and specific heat capacity. This can lead to substandard weld quality between the outer frame and midplane, resulting in insufficient reliability between the welded outer frame and midplane, and ultimately, the reliability of the entire phone midframe. Technical Solutions

[0004] Based on this, it is necessary to propose a mobile phone middle frame and mobile phone with better reliability to address the above problems.

[0005] The present invention provides a mobile phone middle frame, including:

[0006] An outer frame having a plurality of first connecting portions;

[0007] a middle plate having a second connection portion corresponding to each of the first connection portions, wherein the corresponding first connection portion and the second connection portion are connected by welding;

[0008] and a connecting layer coated on an end surface of the first connecting portion for welding to the second connecting portion, wherein the material properties of the connecting layer are similar to or identical to those of the second connecting portion;

[0009] Alternatively, the connection layer is coated on the end surface of the second connection part for welding with the first connection part, and the material properties of the connection layer are similar to or the same as those of the first connection part.

[0010] In some embodiments, the first connection part has a first connection end surface for welding, the second connection part has a second connection end surface connected to the first connection end surface, and the connection layer is coated on the first connection end surface and / or the second connection end surface.

[0011] In some embodiments, the connecting layer is coated on the first connecting end surface, and raised portions are provided at intervals on the connecting layer. The end surface of the raised portion is a curved surface, and the material of the raised portion is consistent with the material of the connecting layer. A groove is provided on the second connecting end surface corresponding to the position of the raised portion.

[0012] In some embodiments, the connecting layer is arranged around the periphery of the first connecting end face to form an annular outer connecting layer, and the first connecting end face is also coated with an inner connecting layer at the middle position surrounded by the outer connecting layer, and the material of the outer connecting layer is consistent with that of the outer connecting layer.

[0013] In some embodiments, the connecting layer includes a first connecting layer and a second connecting layer, the first connecting layer is arranged on the first connecting end surface, the second connecting layer is arranged on the second connecting end surface, the first connecting layer and the second connecting layer are staggered, the material of the first connecting layer is the same as the material of the second connecting part, and the material of the second connecting layer is the same as the material of the first connecting part.

[0014] In some embodiments, the first connecting layer is arranged in a ring shape, the edge of the first connecting layer is flush with the edge of the first connecting end face, the second connecting layer is arranged opposite to the space enclosed by the first connecting layer, and the shape and size of the second connecting layer are adapted to the shape and size of the space enclosed by the first connecting layer.

[0015] In some embodiments, the first connection end surface is divided into two adjacent areas along a center line, the first connection layer is coated on one of the areas, and the second connection end surface is coated with the second connection layer on an area opposite to the first connection end surface that is not coated with the first connection layer.

[0016] In some embodiments, the first connection layer is arranged in a rectangular shape and arranged in a matrix on the first connection end surface, and the second connection layer is also arranged in a rectangular shape and arranged on the second connection end surface opposite the gap between the first connection layers.

[0017] In some embodiments, the first connecting portion is provided with a first recessed portion at the end where the first connecting end surface is located, the first recessed portion is formed with a first recessed surface and a second recessed surface, the second connecting portion is provided with a second recessed portion at the end where the second connecting end surface is located, the second recessed portion is formed with a third recessed surface and a fourth recessed surface, the first connecting end surface is capable of abutting against the fourth recessed surface, the second connecting end surface is capable of abutting against the second recessed surface, and the first recessed surface is capable of abutting against the third recessed surface;

[0018] The first connecting end surface and the second recessed surface are both coated with a first connecting layer whose material is consistent with that of the second connecting portion, or the second connecting end surface and the fourth recessed surface are both coated with a second connecting layer whose material is consistent with that of the first connecting portion, and the first recessed surface and / or the fourth recessed surface are both coated with a connecting layer.

[0019] An embodiment of the present application also provides a mobile phone, comprising the mobile phone middle frame described above. Beneficial effects

[0020] The embodiments of the present application have the following beneficial effects:

[0021] According to the mobile phone middle frame and mobile phone in the above-mentioned embodiments, a connecting layer is applied to the end surface of the first connecting portion or the second connecting portion for welding. The connecting layer has similar or identical material properties to the object to be welded. In this way, when the first connecting portion and the second connecting portion are welded, the similar or identical material properties of the two welded parts can improve the welding quality. Compared with the related art that directly welds the outer frame and the middle plate of two different materials, by providing a connecting layer between the first connecting portion and the second connecting portion where the outer frame and the middle plate are connected, the two parts to be welded can be converted from welding of different materials to welding of similar materials. In this way, the phenomenon of poor welding effect caused by welding of different materials can be avoided, the reliability of the connection between the outer frame and the middle plate can be guaranteed, and the reliability of the entire middle frame can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] in:

[0024] FIG1 shows an exploded view of a mobile phone midframe provided in the present application;

[0025] FIG2 shows a schematic diagram of a first structural embodiment of a mobile phone mid-frame structure provided by the present application;

[0026] FIG3 shows a second structural diagram of the mobile phone middle frame structure provided by the present application;

[0027] FIG4 shows a third structural diagram of the mobile phone middle frame structure provided by the present application;

[0028] FIG5 shows a fourth structural diagram of the mobile phone middle frame structure provided in the present application.

[0029] Description of main component symbols:

[0030] 1. Outer frame; 11. First connecting portion; 111. First recessed portion; 1111. First recessed surface; 1112. Second recessed surface; 112. First connecting end surface; 2. Middle plate; 21. Second connecting portion; 211. Second recessed portion; 2111. Third recessed surface; 2112. Fourth recessed surface; 212. Second connecting end surface; 30. Connecting layer; 31. First connecting layer; 32. Second connecting layer; 40. Raised portion; 50. Groove. Modes for Carrying Out the Invention

[0031] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0034] This application provides a mobile phone midframe that can be used in smartphones as a mounting and support frame. In one embodiment, referring to Figures 1 and 2, the mobile phone midframe includes an outer frame 1, a mid-plate 2, and a connecting layer 30. The outer frame 1 defines the entire perimeter of the midframe, and thus the outer edge of the mobile phone. The outer frame 1 has a plurality of first connecting portions 11.

[0035] The middle plate 2 is connected to the outer frame 1 and is located within the range of the outer frame 1. The middle plate 2 has a second connection portion 21 corresponding to each first connection portion 11, and the corresponding first connection portion 11 and the second connection portion 21 can be connected by welding.

[0036] The connecting layer 30 is coated on the end surface of the first connecting portion 11 for welding to the second connecting portion 21 , and the material properties of the connecting layer 30 are similar to or identical to the material properties of the second connecting portion 21 ;

[0037] Alternatively, the connection layer 30 is coated on the end surface of the second connection part 21 for welding with the first connection part 11 , and the material properties of the connection layer 30 are similar to or the same as those of the first connection part 11 .

[0038] It should be noted that the material properties emphasized in this application or the material hereinafter referred to can be understood as properties that can affect the welding quality, such as melting point, thermal conductivity and specific heat capacity.

[0039] In addition, the connection layer 30 in this embodiment can be coated on the first connection part 11 or the second connection part 21 by spraying, and can also be solidified together by welding process according to actual conditions.

[0040] By coating the end surface of the first connecting portion 11 or the second connecting portion 21 for welding with a connecting layer 30, the connecting layer 30 has similar or identical material properties to the object to be welded. This improves the weld quality when the first connecting portion 11 and the second connecting portion 21 are welded together because the materials of the two welded parts are similar or identical. Compared to the related art method of directly welding the outer frame 1 and the middle plate 2 together as two different materials, by providing the connecting layer 30 between the first connecting portion 11 and the second connecting portion 21 where the outer frame 1 and the middle plate 2 are connected, the two parts to be welded together can be converted from welding of different materials to welding of similar materials. This avoids the poor welding effect that can occur when welding different materials, ensures the reliability of the connection between the outer frame 1 and the middle plate 2, and thus improves the reliability of the entire middle frame.

[0041] In one embodiment, referring to Figures 1 to 3, the first connecting portion 11 has a first connecting end surface 112 for welding, and the second connecting portion 21 has a second connecting end surface 212 connected to the first connecting end surface 112. When the first connecting portion 11 and the second connecting portion 21 are welded, the welding is usually performed between the first connecting end surface 112 and the second connecting end surface 212. The connecting layer 30 is coated on the first connecting end surface 112 and / or the second connecting end surface 212.

[0042] Specifically, the connecting layer 30 is applied only to the first connecting end surface 112. The thickness of the connecting layer 30 is not limited and needs to be determined according to actual conditions. Of course, the connecting layer 30 can also be applied only to the second connecting end surface 212. Regardless of whether the connecting layer 30 is applied to the first connecting end surface 112 or the second connecting end surface 212, the connecting layer 30 preferably covers the entire connecting end surface, and the material of the connecting layer 30 applied to one connecting portion is consistent with the material of the other connecting portion.

[0043] It should be noted that the surface of the connecting layer 30 can be flat, or it can be provided with multiple raised portions 40 at intervals. The end surfaces of these raised portions 40 facing away from the connecting layer 30 are all curved. The material of the raised portions 40 is the same as that of the connecting layer 30. Correspondingly, the end surfaces without the connecting layer 30 are provided with grooves 50. For example, if the connecting layer 30 is provided on the first connecting end surface 112, the grooves 50 are provided on the second connecting end surface 212 at locations corresponding to the raised portions 40. This increases the welding area and ensures a more secure connection.

[0044] In a specific embodiment, the connecting layer 30 need not coat the entire connecting end surface. For example, the connecting layer 30 may be disposed around the periphery of the first connecting end surface 112 to form an annular outer connecting layer. The first connecting end surface 112 may also be coated with an inner connecting layer at a position midway between the outer connecting layer. The outer connecting layer and the inner connecting layer may be made of the same material. Such coordination between the outer and inner connecting layers 30 can also achieve stable welding of the two connecting portions.

[0045] In one embodiment, referring to Figures 1 and 4 , a connecting layer 30 is disposed on both the first connecting end surface 112 and the second connecting end surface 212. Specifically, the connecting layer 30 includes a first connecting layer 31 and a second connecting layer 32. The first connecting layer 31 is disposed on the first connecting end surface 112, and the second connecting layer 32 is disposed on the second connecting end surface 212. The first connecting layer 31 and the second connecting layer 32 are staggered. It is worth noting that the sum of the areas of the first connecting layer 31 and the second connecting layer 32 is the area required for welding between the first connecting end surface 112 and the second connecting end surface 212. The material of the first connecting layer 31 is similar to or the same as that of the second connecting portion 21, and the material of the second connecting layer 32 is similar to or the same as that of the first connecting portion 11.

[0046] When welding, the first connecting layer 31 is placed opposite the position of the second connecting part 21 except the second connecting layer 32. At this time, the second connecting layer 32 is also placed opposite the position of the first connecting part 11 except the first connecting layer 31. By using the staggered welding method of the first connecting layer 31 and the second connecting layer 32, the first connecting end face 112 and the second connecting end face 212 can be welded.

[0047] In a specific embodiment, the first connecting layer 31 is arranged in a ring shape, the edge of the first connecting layer 31 is flush with the edge of the first connecting end face 112, the second connecting layer 32 is arranged opposite to the space enclosed by the first connecting layer 31, and the shape and size of the second connecting layer 32 are adapted to the shape and size of the space enclosed by the first connecting layer 31.

[0048] In another specific embodiment, the first connection end surface 112 is divided into two adjacent areas along the center line, the first connection layer 31 is coated on one of the areas, and the second connection end surface 212 is coated with the second connection layer 32 in the area opposite to the first connection end surface 112 where the first connection layer 31 is not coated.

[0049] Or in another specific embodiment, the first connection layer 31 is arranged in a rectangular shape and is arranged in a matrix on the first connection end surface 112 , and the second connection layer 32 is also arranged in a rectangular shape and is arranged on the second connection end surface 212 opposite the gap between the first connection layers 31 .

[0050] In one embodiment, referring to Figures 1 and 5, the first connecting portion 11 is provided with a first recessed portion 111 at the end where the first connecting end surface 112 is located. The first recessed portion 111 is formed with a first recessed surface 1111 and a second recessed surface 1112 at this end. The two ends of the first recessed surface 1111 are connected to the first connecting end surface 112 and the second recessed surface 1112, respectively.

[0051] The second connecting portion 21 is provided with a second recessed portion 211 at the end where the second connecting end surface 212 is located. The second recessed portion 211 is formed with a third recessed surface 2111 and a fourth recessed surface 2112 at this end. The two ends of the third recessed surface 2111 are connected to the second connecting end surface 212 and the fourth recessed surface 2112 respectively.

[0052] It should be noted that the first recessed portion 111 and the second recessed portion 211 are staggered, so that the end of the first connecting portion 11 at which the first connecting end surface 112 is located can be plugged into the second recessed portion 211, and the end of the second connecting portion 21 at which the second connecting end surface 212 is located can be plugged into the first recessed portion 111. At this point, the first connecting end surface 112 abuts against the fourth recessed surface 2112, the second connecting end surface 212 abuts against the second recessed surface 1112, and the first recessed surface 1111 fits against the third recessed surface 2111.

[0053] It is worth mentioning that both the first connecting end surface 112 and the second recessed surface 1112 are coated with a first connecting layer 31 made of the same material as the second connecting portion 21, or both the second connecting end surface 212 and the fourth recessed surface 2112 are coated with a second connecting layer 32 made of the same material as the first connecting portion 11, and the first recessed surface 1111 and / or the fourth recessed surface 2112 are coated with a connecting layer 30. When only one of the first recessed surface 1111 and the fourth recessed surface 2112 is coated with the connecting layer 30, the material of the connecting layer 30 is the same as that of the corresponding connecting portion of the other recessed surface. When both the first recessed surface 1111 and the fourth recessed surface 2112 are coated with the connecting layer 30, the materials of both connecting layers 30 are the same.

[0054] The present application also provides a mobile phone, comprising the above-mentioned mobile phone middle frame.

[0055] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A middle frame of a mobile phone, characterized in that, Comprising: An outer frame having a plurality of first connecting portions; A middle plate having second connecting portions provided corresponding to each of the first connecting portions, and the corresponding first connecting portions and second connecting portions are connected by welding; And a connecting layer coated on the end face of the first connecting portion for welding with the second connecting portion, and the material property of the connecting layer is similar to or the same as that of the second connecting portion; Or, the connecting layer is coated on the end face of the second connecting portion for welding with the first connecting portion, and the material property of the connecting layer is similar to or the same as that of the first connecting portion.

2. The middle frame of the mobile phone according to claim 1, characterized in that, The first connecting portion has a first connecting end face for welding, the second connecting portion has a second connecting end face connected to the first connecting end face, and the connecting layer is coated on the first connecting end face or / and the second connecting end face.

3. The middle frame of the mobile phone according to claim 2, characterized in that, The connecting layer is coated on the first connecting end face, and convex portions are spaced apart on the connecting layer, the end face of the convex portion is provided as a curved surface, the material of the convex portion is the same as that of the connecting layer, and a groove is provided at a position of the second connecting end face corresponding to the convex portion.

4. The middle frame of the mobile phone according to claim 3, characterized in that, The connecting layer is arranged around the periphery of the first connecting end face to form an annular outer connecting layer, and an inner connecting layer is further coated at an intermediate position surrounded by the outer connecting layer on the first connecting end face, and the material of the outer connecting layer is the same as that of the outer connecting layer.

5. The middle frame of the mobile phone according to claim 2, wherein, The connecting layer includes a first connecting layer and a second connecting layer, the first connecting layer is provided on the first connecting end face, the second connecting layer is provided on the second connecting end face, the first connecting layer and the second connecting layer are arranged in a staggered manner, the material of the first connecting layer is the same as that of the second connecting portion, and the material of the second connecting layer is the same as that of the first connecting portion.

6. The middle frame of the mobile phone according to claim 5, characterized in that, The first connecting layer is arranged in a ring shape, the edge of the first connecting layer is flush with the edge of the first connecting end face, the second connecting layer is arranged opposite to the space surrounded by the first connecting layer, and the shape and size of the second connecting layer are adapted to the shape and size surrounded by the first connecting layer.

7. The middle frame of the mobile phone according to claim 5, characterized in that, The first connecting end face is divided into two adjacent regions along the center line, the first connecting layer is coated on one of the regions, and the second connecting layer is coated on the region of the second connecting end face opposite to the region where the first connecting layer is not coated on the first connecting end face.

8. The middle frame of the mobile phone according to claim 5, characterized in that, The first connecting layer is arranged in a rectangle, the first connecting layer is arranged on the first connecting end face in a matrix, the second connecting layer is also arranged in a rectangle, and the second connecting layer is arranged on the second connecting end face opposite to the gap between the first connecting layers.

9. The middle frame of the mobile phone according to claim 2, characterized in that, The first connecting portion is provided with a first recessed portion at the end where the first connecting end face is located, the first recessed portion forms a first recessed surface and a second recessed surface, the second connecting portion is provided with a second recessed portion at the end where the second connecting end face is located, the second recessed portion forms a third recessed surface and a fourth recessed surface, the first connecting end face can abut against the fourth recessed surface, the second connecting end face can abut against the second recessed surface, and the first recessed surface can abut against the third recessed surface; The first connection end face and the second concave face are both coated with a first connection layer made of the same material as the second connection part, or the second connection end face and the fourth concave face are both coated with a second connection layer made of the same material as the first connection part, and the first concave face and / or the fourth concave face are both coated with a connection layer.

10. A mobile phone, characterized in that, It includes the middle frame of the mobile phone according to any one of claims 1-9.

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