Processing method of battery cover plate, battery cover plate and mobile terminal

Abstract

The invention discloses a battery cover plate processing method, a battery cover plate and a mobile terminal.The battery cover plate processing method comprises the following steps that stamping is conducted in the thickness direction of a plate, so that a first concave area and a protruding part are formed on the plate; wherein the thickness of the plate is smaller than a first preset parameter, and the distance between the outer surface of the protruding part and the plate is larger than the first preset parameter; processing along the length direction and the depth direction of the first concave area to form a second concave area; processing along the depth direction of the second concave area to form a third concave area; the minimum distance between the second concave area and the end point formed by the protruding part and the plate and the minimum length of the connecting line between the third concave area and the end point formed by the protruding part and the plate are both larger than or equal to a second preset parameter. Through the steps, on the premise that the strength of the product is guaranteed, the purposes of reducing the production cost, shortening the machining time and improving the production rate are achieved.

Description

Technical Field

[0001] The present invention relates to the field of mobile terminals, and in particular to a processing method of a battery cover, a battery cover and a mobile terminal. Background Art

[0002] In today's mobile terminal manufacturing field, as consumers' requirements for product refinement and functional diversity continue to rise, the battery cover, as an important component of mobile terminal devices, the optimization of its processing technology is particularly critical.

[0003] like Figure 1 As shown, currently, when constructing a structure for installing decorative parts on a battery cover, in order to ensure strength, the industry generally uses a plate 101 with a thickness of 1 mm or thicker for processing, so as to form a 0.7 mm thick installation groove 401 on the plate through milling and other processes, thereby completing the installation of the decorative parts. However, this method has certain defects: for example, in this process, in order to form the installation groove 401 of the decorative part, a large amount of material needs to be removed, which not only causes a great waste of raw materials, but also because the required milling depth is large, resulting in a long processing time and high energy consumption, which in turn leads to high production costs.

[0004] Therefore, there is an urgent need for a battery cover processing method, a battery cover and a mobile terminal to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a battery cover processing method, a battery cover and a mobile terminal, so as to effectively reduce the amount of raw materials used and reduce the depth required for processing and forming while ensuring the strength of the product, thereby reducing production costs and shortening processing time to increase production speed.

[0006] In order to solve the above technical problems, the present invention provides a battery cover processing method, comprising the following steps:

[0007] Punching is performed along the thickness direction of the plate, so that a first concave area and a convex portion are respectively formed on two surfaces of the plate;

[0008] Processing is performed along the length direction and the depth direction of the first recessed area, and the fillets formed by stamping on both sides of the first recessed area are removed. When processing reaches the preset processing length and the preset processing depth, the second recessed area is formed to accommodate the decorative piece;

[0009] Processing is performed along the depth direction of the second recessed area to form a third recessed area for accommodating the adhesive for connecting the decorative piece;

[0010] Among them, the thickness of the plate is less than the first preset parameter, and the distance between the outer surface of the raised portion and the side of the plate away from the raised portion is greater than the first preset parameter; the minimum distance between the second recessed area and the endpoints formed by the raised portion and the plate, and the minimum length of the line connecting the third recessed area and the endpoints formed by the raised portion and the plate are both greater than or equal to the second preset parameter.

[0011] Further, the stamping method of the plate includes stamping the plate using a stamping die;

[0012] The stamping die comprises a first stamping block and a second stamping block which are arranged opposite to each other, and the second stamping block is provided with a groove which matches the first stamping block;

[0013] When the plate is sandwiched between the first punching block and the second punching block, and the first punching block punches along the groove direction, the first recessed area and the raised portion are respectively formed on both sides of the surface of the plate;

[0014] The length of the groove is smaller than the preset processing length, so that the first recessed area has space reserved in the length direction for removing the rounded corners.

[0015] Furthermore, CNC machining is performed in the first recessed area and the second recessed area to form the second recessed area and the third recessed area respectively.

[0016] Furthermore, the range of the first preset parameter is 1 mm-1.2 mm.

[0017] Furthermore, the range of the second preset parameter is 0.22 mm-0.24 mm.

[0018] Furthermore, the depth of the second recessed area is 0.6 mm-0.65 mm, and the depth of the third recessed area is 0.05 mm-0.1 mm.

[0019] Furthermore, the method further comprises the following steps:

[0020] Providing a contoured block matching the second recessed area and the third recessed area;

[0021] The profiling block is installed in the second recessed area and the third recessed area to shape the plate after processing.

[0022] In another aspect, the present invention further provides a battery cover plate, comprising a plate having a thickness less than a first preset parameter;

[0023] A first concave area and a convex portion are respectively formed on two surfaces of the plate, and a second concave area and a third concave area are sequentially formed in the first concave area;

[0024] The minimum distance between the second recessed area and the raised portion and the end point of the plate, and the minimum length of the line connecting the third recessed area and the raised portion and the end point of the plate are both greater than or equal to the second preset parameter.

[0025] Furthermore, the range of the first preset parameter is 1 mm-1.2 mm, and the range of the second preset parameter is 0.22 mm-0.24 mm.

[0026] In another aspect, the present invention further provides a mobile terminal, comprising the battery cover as described in the above embodiment.

[0027] Compared with the prior art, the present invention has at least the following beneficial effects:

[0028] By punching out a first recessed area and a raised portion in the thickness direction of the plate, and making the distance between the raised portion and the side of the plate away from the raised portion greater than a first preset parameter, when the first recessed area is processed to form a second recessed area and a third recessed area, the raised portion can provide support for the second recessed area and the third recessed area, and the minimum distance between the second recessed area and the end points formed by the raised portion and the plate, and the minimum length of the line connecting the end points formed by the third recessed area, the raised portion and the plate are both greater than or equal to the second preset parameter, ensuring that the strength of the plate after forming can meet the application requirements, that is, no breakage or edge collapse will occur during use.

[0029] Furthermore, since the first recessed area has been formed during the stamping process, the required processing depth is reduced when the second recessed area and the third recessed area are subsequently processed and formed, thereby shortening the processing time and increasing the production rate.

[0030] In addition, since the thickness of the plate is less than the first preset parameter, that is, the required thickness is lower than the thickness required for processing and forming in the prior art, the amount of raw materials used can be effectively reduced, thereby achieving the purpose of reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the process of processing a battery cover in the prior art;

[0032] Figure 2 It is a schematic flow chart of a method for processing a battery cover in one embodiment of the present invention;

[0033] Figure 3 The figure is a schematic diagram of a battery cover plate after being processed and formed according to a processing method of the battery cover plate in one embodiment of the present invention.

[0034] Figure numbers: 1, plate; 2, first recessed area; 3, raised portion; 4, second recessed area; 5, third recessed area; 6, stamping die; 7, profiling block. DETAILED DESCRIPTION

[0035] The processing method of the battery cover plate, the battery cover plate and the mobile terminal of the present invention will be described in more detail below in conjunction with the schematic diagram, wherein the preferred embodiments of the present invention are shown, and it should be understood that those skilled in the art can modify the present invention described herein and still achieve the advantageous effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation of the present invention.

[0036] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and are not in exact proportions, and are only used to facilitate and clearly assist in illustrating the purpose of the embodiments of the present invention.

[0037] Embodiment 1

[0038] like Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a method for processing a battery cover, comprising the following steps:

[0039] Step 1: Punching is performed along the thickness direction of the plate 1 to form a first recessed area 2 and a raised portion 3 on two surfaces of the plate 1 .

[0040] The thickness of the plate 1 is smaller than a first preset parameter, and the distance between the outer surface of the protrusion 3 and a side of the plate 1 away from the protrusion 3 is larger than the first preset parameter.

[0041] It should be noted that the first preset parameter is the thickness of the plate 1 used in the prior art, that is, the range of the first preset parameter is 1mm-1.2mm. The present application can effectively reduce the use of raw materials by setting the thickness of the plate 1 to be lower than the first preset parameter, thereby achieving the purpose of reducing costs.

[0042] It should also be particularly noted that, by limiting the distance between the raised portion 3 and the plate 1 (i.e., the distance between the outer surface of the raised portion 3 and the side of the plate 1 away from the raised portion 3 is greater than the first preset parameter), the raised portion 3 can provide effective support for the subsequent forming of the interior of the plate 1 to provide effective support for the installation grooves (i.e., the second recessed area 4 and the third recessed area 5) for installing decorative parts, thereby ensuring that the formed plate 1 will not collapse or break.

[0043] Step 2: Process the first recessed area 2 along the length and depth directions to remove the fillets formed on both sides of the first recessed area 2 due to stamping, and when processing to the preset processing length and the preset processing depth, form the second recessed area 4 for accommodating decorative parts.

[0044] In the prior art, the notches on both sides of the installation groove of the decorative part are usually right angles of R0, so the rounded corners formed by stamping need to be removed to meet the installation requirements.

[0045] It should be pointed out that the preset processing depth and the preset processing length are the dimensions required for the installation of the decorative parts, so no excessive restrictions are made here.

[0046] Step 3: Processing is performed along the depth direction of the second recessed area 4 to form a third recessed area 5 for accommodating the adhesive for connecting the decorative part. In order to ensure the strength of the plate 1 after molding, the installation area of ​​the decorative part is divided into the second recessed area 4 and the third recessed area 5. By molding the second recessed area 4 and the third recessed area 5 in sequence, it can be effectively ensured that the molded plate 1 can meet the strength requirements.

[0047] Specifically, the minimum distance between the second recessed area 4 and the end points formed by the raised portion 3 and the plate 1 (eg Figure 3 The minimum length of the line L1) and the line connecting the endpoints formed by the third concave area 5, the protruding portion 3 and the plate 1 (such as Figure 3 Since the length of the straight line L1 is the shortest, it is necessary to make one side end surface of the third concave area 5 located in the fan-shaped area formed by the straight line L1 as the radius (such as Figure 3 The outside of the third recessed area 5 (as shown in the filling area) is further limited to further limit the length and depth of the third recessed area 5 and the thickness of the plate 1 to ensure the application strength of the plate 1 after forming.

[0048] It should be noted that the second preset parameter is the minimum size to ensure the strength required for the formed sheet 1 during application, and its specific numerical value is obtained based on theoretical calculations of material mechanics, that is, the second preset parameters corresponding to sheets 1 of different thicknesses are also different, so no excessive restrictions are made here.

[0049] In this embodiment, the stamping method of the plate 1 includes stamping the plate 1 by using a stamping die 6 .

[0050] The stamping die 6 includes a first stamping block and a second stamping block which are arranged opposite to each other, and the second stamping block is provided with a groove which matches the first stamping block.

[0051] When the plate 1 is sandwiched between the first punching block and the second punching block, and the first punching block punches along the groove direction, the first recessed area 2 and the raised portion 3 are respectively formed on both sides of the surface of the plate 1 .

[0052] Please continue reading Figure 2 It should be noted that the length of the groove is less than the preset processing length, so that the first recessed area 2 has space reserved in the length direction for removing the rounded corners, thereby meeting the application requirements of subsequent decorative parts installation.

[0053] Among them, CNC machining is performed in the first recessed area 2 and the second recessed area 4 to respectively form the second recessed area 4 and the third recessed area 5. Since the first recessed area 2 is formed by stamping, the feed amount of milling required for CNC machining can be effectively reduced during the forming process of the second recessed area 4, thereby achieving the purpose of shortening the machining time and improving the production rate.

[0054] In addition, in order to prevent the plate 1 from collapsing due to deformation of its own material after being formed, it is also necessary to perform a shaping operation on it to ensure the stability of the plate 1 after being formed.

[0055] Specifically, the processing method of the battery cover plate also includes the following steps:

[0056] A contour block 7 is provided to match the second recessed area 4 and the third recessed area 5,

[0057] The profiling block 7 is installed in the second recessed area 4 and the third recessed area 5 to shape the plate 1 after processing, that is, the positioning support of the profiling block 7 can effectively prevent the second recessed area 4 and the third recessed area 5 from shrinking due to deformation, so as to ensure the stability of the plate 1 after forming.

[0058] like Figure 2 To further illustrate the above processing method and the technical effect it brings, an example is specifically listed here for illustration, as shown below:

[0059] Taking the 0.8 mm plate 1 as an example, in order to meet the application requirement of 0.7 mm for the installation of decorative parts, the depth of the second recessed area 4 is set to 0.6 mm-0.65 mm, and the depth of the third recessed area 5 is set to 0.05 mm-0.1 mm.

[0060] Furthermore, in order to reduce the amount of milling required for forming the second recessed area 4 and the third recessed area 5, the depth of the stamping of the plate 1 is set to 0.4 mm. According to theoretical calculations based on material mechanics, in order to meet the above-mentioned processing requirements, the minimum size of the strength required for the plate 1 is 0.22 mm, so the range of the second preset parameter is set to 0.22 mm-0.24 mm to meet the strength requirements.

[0061] Step 1: providing a plate 1 with a thickness of 0.8 mm, and forming a first concave area 2 with a depth of 0.4 mm and a convex portion 3 with a thickness of 0.4 mm on the upper and lower surfaces of the plate 1 respectively by a stamping die 6;

[0062] Step 2: milling the first recessed area 2 by CNC machining to remove the rounded corners on both sides of the first recessed area 2, forming a second recessed area 4 with a right-angled end face to meet the installation and placement requirements of the decorative part;

[0063] Step 3: Mill the middle of the first recessed area 2 again through CNC processing to form a third recessed area 5 for accommodating the adhesive for connecting the decorative part.

[0064] like Figure 3 As shown, in this example, in order to ensure strength requirements, the position of the third recessed area 5 needs to be further limited. Specifically, the lengths of the straight line L1 and the straight line L2 are both greater than or equal to the second preset parameter to ensure that the strength of the sheet material 1 after forming can meet application requirements.

[0065] It should be noted that since the straight line L1 is the shortest path, in order to further save the use of raw materials, there is a situation where the length of the straight line L1 is exactly equal to the second preset parameter. Therefore, in order to avoid breakage of the plate 1 after forming, it is necessary to make the side wall of the third recessed area 5 located on the outside of the fan-shaped area formed with the straight line L1 as the radius, so as to further ensure the application strength of the plate 1 after forming.

[0066] In summary, through the above steps, the decorative component placement groove can be formed by a plate 1 with a thickness of 0.8 mm while meeting the strength requirement, thereby saving materials and reducing costs compared to the method of forming a plate 1 with a thickness of 1 mm in the prior art. In addition, since the first recessed area 2 can be preformed during the stamping process, the milling amount in the depth direction can be effectively reduced during the subsequent milling to form the second recessed area 4 and the third recessed area 5, thereby shortening the processing time and increasing the production rate.

[0067] Embodiment 2

[0068] This embodiment also proposes a battery cover plate, which can use a plate 1 of relatively small thickness to complete the molding and setting of the decorative component placement groove while ensuring strength, thereby achieving the purpose of saving materials.

[0069] Specifically, the battery cover plate includes a plate 1 having a thickness less than a first preset parameter.

[0070] The two surfaces of the plate 1 are respectively formed with a first recessed area 2 and a raised portion 3, and a second recessed area 4 and a third recessed area 5 are sequentially formed in the first recessed area 2. The raised portion 3 is formed to meet the strength requirement, and the second recessed area 4 and the third recessed area 5 are formed to meet the installation requirement of the decorative part, such as the second recessed area 4 is used to place the decorative part, and the third recessed area 5 is provided for connecting the adhesive backing of the decorative part.

[0071] It should be noted that in order to further ensure the strength of the sheet 1 after forming, it is further limited here that the minimum spacing between the second recessed area 4 and the raised portion 3 and the end point of the sheet 1 and the minimum length of the line connecting the third recessed area 5 and the raised portion 3 and the end point of the sheet 1 are both greater than or equal to the second preset parameter.

[0072] It should also be noted that the range of the first preset parameter is 1 mm-1.2 mm, and the range of the second preset parameter is 0.22 mm-0.24 mm.

[0073] Compared with the prior art, the present device can select a plate 1 with a thickness less than a first preset parameter to complete the installation of decorative parts. Therefore, compared with the prior art method of using a plate 1 with a thickness equal to or greater than the first preset parameter for installing decorative parts, the present device can effectively reduce the production cost and meet the low-cost production requirements.

[0074] Embodiment 3

[0075] This embodiment further proposes a mobile terminal based on the second embodiment, including the battery cover as described in the second embodiment, so as to effectively reduce the production cost.

[0076] The mobile terminal may be any mobile terminal including a battery cover, for example, a mobile phone, a tablet computer, a laptop computer, a personal digital assistant, a mobile Internet device or a wearable device.

[0077] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for processing a battery cover, characterized in that: The steps include: Punching is performed along the thickness direction of the plate, so that a first concave area and a convex portion are respectively formed on two surfaces of the plate; Processing is performed along the length direction and the depth direction of the first recessed area, and the fillets formed by stamping on both sides of the first recessed area are removed. When processing reaches the preset processing length and the preset processing depth, the second recessed area is formed to accommodate the decorative piece; Processing is performed along the depth direction of the second recessed area to form a third recessed area for accommodating the adhesive for connecting the decorative piece; Among them, the thickness of the plate is less than the first preset parameter, and the distance between the outer surface of the raised portion and the side of the plate away from the raised portion is greater than the first preset parameter; the minimum distance between the second recessed area and the endpoints formed by the raised portion and the plate, and the minimum length of the line connecting the third recessed area and the endpoints formed by the raised portion and the plate are both greater than or equal to the second preset parameter.

2. The processing method of the battery cover according to claim 1, characterized in that: The stamping method of the plate comprises stamping the plate with a stamping die; The stamping die comprises a first stamping block and a second stamping block which are arranged opposite to each other, and the second stamping block is provided with a groove which matches the first stamping block; When the plate is sandwiched between the first punching block and the second punching block, and the first punching block punches along the groove direction, the first recessed area and the raised portion are respectively formed on both sides of the surface of the plate; The length of the groove is smaller than the preset processing length, so that the first recessed area has space reserved in the length direction for removing the rounded corners.

3. The processing method of the battery cover according to claim 1, characterized in that: CNC machining is performed in the first recessed area and the second recessed area to form the second recessed area and the third recessed area respectively.

4. The processing method of the battery cover according to claim 1, characterized in that: The range of the first preset parameter is 1 mm-1.2 mm.

5. The battery cover processing method according to claim 1, characterized in that: The range of the second preset parameter is 0.22mm-0.24mm.

6. The battery cover processing method according to claim 1, characterized in that: The depth of the second recessed area is 0.6 mm-0.65 mm, and the depth of the third recessed area is 0.05 mm-0.1 mm.

7. The battery cover processing method according to claim 1, characterized in that: The following steps are also included: Providing a contoured block matching the second recessed area and the third recessed area; The profiling block is installed in the second recessed area and the third recessed area to shape the plate after processing.

8. A battery cover, characterized in that: including a plate having a thickness less than a first preset parameter; A first concave area and a convex portion are respectively formed on two surfaces of the plate, and a second concave area and a third concave area are sequentially formed in the first concave area; The minimum distance between the second recessed area and the raised portion and the end point of the plate, and the minimum length of the line connecting the third recessed area and the raised portion and the end point of the plate are both greater than or equal to the second preset parameter.

9. A battery cover as claimed in claim 8, characterized in that: The range of the first preset parameter is 1 mm-1.2 mm, and the range of the second preset parameter is 0.22 mm-0.24 mm.

10. A mobile terminal, characterized in that: Comprising the battery cover plate as claimed in claim 8 or 9.

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