Protective sleeve and backboard processing technology thereof

Abstract

The invention discloses a protective sleeve and a backboard processing technology thereof, and relates to the technical field of board processing. The backboard processing technology comprises the following steps that a sheet is processed through CNC equipment, and a magnetic attraction groove, an FPC board groove and a power source groove are processed; performing silk-screen printing on the magnetic attraction piece and pasting a thin film, and then checking the combination condition of the magnetic attraction piece and cleaning; the positive electrode and the negative electrode of the power supply part are electrically connected and welded with the FPC soft board to form an assembly; the magnetic attraction piece is placed in the magnetic attraction groove, the FPC soft board is placed in the FPC board groove, and the power supply piece is placed in the power supply groove; the appearance of the cover plate is machined through CNC equipment, and the cover plate is cleaned; the cover plate and the sheet are subjected to film pasting treatment, and film pressing equipment is used for pressing the cover plate and the sheet; a UV lamp is adopted to irradiate the cover plate and the sheet, and fusion between the cover plate and the sheet is accelerated; and the fused sheet and the cover plate are dried. By adopting the process, the back plate can be processed into a plate with uniform thickness, and meanwhile, the back plate is endowed with multiple functions.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet processing, and particularly relates to a protective case and a processing technology for its back plate. Background Art

[0002] Nowadays, many users will equip their mobile phones with protective cases after purchasing them. The existing protective cases are mostly installed on the back of the mobile phone to prevent scratches when the mobile phone is knocked, and at the same time can reduce the pressure when the mobile phone drops, playing a role in protecting the mobile phone.

[0003] In addition to having high requirements for the appearance and protection performance of the protective case, users are increasingly paying attention to the functions of the protective case. The additional functions of the protective case can bring direct use experiences to users and largely determine the quality evaluation of the protective case by users. However, the addition of different functions often causes the protective case to not form a whole sheet of uniform thickness, affecting the user's holding feel. Summary of the Invention

[0004] The purpose of the present invention is to provide a protective case and a processing technology for its back plate in view of the defects and deficiencies of the prior art, which has the advantages of not only being able to process the back plate into a sheet of uniform thickness, but also endowing the back plate with multiple functions.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: A processing technology for a back plate, including the following steps: S1: Process the sheet material with a CNC device to process a magnetic attraction groove, an FPC board groove, and a power supply groove; S2: Screen-print magnetic attraction parts and attach a film, and then inspect the combination of the magnetic attraction parts and clean them; S3: Electrically connect and weld the positive and negative poles of the power supply part to the FPC flexible board to form a component; S4: Place the magnetic attraction part into the magnetic attraction groove, place the FPC flexible board into the FPC board groove, and place the power supply part into the power supply groove; S5: Use a CNC device to process the outer shape of the cover plate and perform cleaning; S6: Perform film pasting treatment on the cover plate and the sheet material, and use a film pressing device to press the cover plate and the sheet material; S7: Use a UV lamp to irradiate the cover plate and the sheet material to accelerate the fusion between the cover plate and the sheet material; S8: Perform drying treatment on the fused sheet material and the cover plate.

[0006] Preferably, the step S3 further includes: S31: Process the side surface of the sheet material to process a through groove located on the side surface of the sheet material, and the through groove communicates with the FPC board groove; S32: Cut and process the FPC flexible board, and cut out an extension piece along the side of the FPC flexible board; S33: Pass the extension piece through the through groove from the FPC board slot; S34: Bend the extension piece relative to the FPC flexible board; S35: Weld a button on the extension piece.

[0007] Preferably, the step S34 includes: S341: Install the designed mold on the bending equipment and adjust the position and height; S342: Place the FPC flexible board on the mold to ensure its accurate position; S343: Bend the FPC flexible board through a stamping tool to make it bend into the required shape and angle.

[0008] Preferably, a signal transceiver is integrated on the FPC flexible board, and the signal transceiver is signal-connected to the mobile device, so that the user can send command information to the FPC flexible board through the button, and the FPC flexible board sends the command information to the mobile device through the signal transceiver.

[0009] Preferably, the temperature of the drying treatment is sixty degrees and the time is five minutes.

[0010] Preferably, the materials of the sheet and the cover plate are both PC materials.

[0011] Preferably, a power connection part is integrated on the FPC flexible board, and the power connection part is used for an external charging device to charge the power supply component.

[0012] Preferably, the depth of the magnetic attraction groove is 1.2 mm, the depth of the FPC board slot is 1.3 mm, and the depth of the power supply slot is 1.7 mm.

[0013] Preferably, the thickness of the film adhered to the cover plate and the sheet is 0.25 mm.

[0014] A protective case is provided with the back plate, and further includes side plates. The side plates surround the edge of the back plate. The side plates protect the side of the mobile device. The extension piece is attached to the inner wall of the side plate, the button on the extension piece faces the side plate, and the power connection part is arranged on the side of the back plate away from the mobile device.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are as follows: By processing the sheet material of the backplane, grooves for placing the power supply component, magnetic attraction component and FPC flexible board are processed, so that the protective cover with this backplane can integrate additional functions on the FPC flexible board. Also, by setting the magnetic attraction component, the influence of the external wireless charger on the magnetic attraction charging adsorption ability of the mobile device is reduced due to the setting of the protective cover. Moreover, through the processes of covering the sheet material with the cover plate, laminating, UV lamp irradiation and drying, the entire backplane is integrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is the process flow chart of the present invention; Figure 2 corresponds to Figure 1 the detailed flow chart of step S3; Figure 3 corresponds to Figure 2 the detailed flow chart of step S34; Figure 4 is the structural schematic diagram of the present invention; Figure 5 corresponds to Figure 4 the exploded view.

[0018] Description of reference numerals: 1, backplane; 11, magnetic attraction sheet; 12, charging contact; 13, button; 14, FPC flexible board; 15, sheet material; 151, power supply groove; 152, magnetic attraction groove; 153, FPC board groove; 154, clamping edge; 155, through groove; 156, positioning part; 16, magnetic attraction component; 17, power supply component; 18, cover plate; 181, charging hole; 2, side plate; 21, button sleeve; 22, visual window; 23, clamping groove; 24, pressing part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further details the present invention with reference to the drawings.

[0020] This specific embodiment is only an explanation of the present invention and is not a limitation thereof. Those skilled in the art can make modifications without creative contributions to this embodiment after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0021] This embodiment relates to the processing technology of the backplane 1, such asFigure 1 As shown in the figure, the present invention provides the following steps: S1: Process the sheet 15 using a CNC device to machine a magnetic attraction groove 152, an FPC board groove 153, and a power supply groove 151; S2: Screen-print the magnetic attraction part 16 and laminate a film, then inspect the combination of the magnetic attraction parts 16 and clean them; S3: Electrically connect and weld the positive and negative electrodes of the power supply part 17 to the FPC flexible board 14 to form a component; S4: Place the magnetic attraction part 16 into the magnetic attraction groove 152, place the FPC flexible board 14 into the FPC board groove 153, and place the power supply part 17 into the power supply groove 151; S5: Use a CNC device to machine the outer shape of the cover plate 18 and perform cleaning; S6: Perform film laminating treatment on the cover plate 18 and the sheet 15, and use a film pressing device to press the cover plate 18 and the sheet 15 together; S7: Use a UV lamp to irradiate the cover plate 18 and the sheet 15 to accelerate the fusion between the cover plate 18 and the sheet 15; S8: Dry the fused sheet 15 and cover plate 18.

[0022] It should be noted that avoidance areas need to be machined on the sheet 15 and the cover plate 18. A visible window 22 for the camera of the mobile device to be exposed is provided on the side plate 2. Avoidance areas that fit the outer edge of the visible window 22 are provided on the sheet 15 and the cover plate 18. The avoidance areas are for the sheet 15 to be adapted to the side plate 2 with the visible window 22.

[0023] Preferably, the machined magnetic attraction groove 152 is located in the middle of the sheet 15. A part of the machined FPC board groove 153 surrounds the edge of the magnetic attraction groove 152, and the other part of the FPC board groove 153 is on the side close to the avoidance area. The machined power supply groove 151 is arranged away from the avoidance area.

[0024] In this embodiment, the drying treatment temperature for the sheet 15 and the cover plate 18 is sixty degrees, and the time is five minutes. The materials of the sheet 15 and the cover plate 18 are both PC materials. Different colors or patterns can be sprayed on the cover plate 18, which are respectively covered on both sides of the sheet 15 to make the colors and patterns of the present backplane 1 more abundant. The magnetic attraction groove 152 is 1.2 mm deep, the FPC board groove 153 is 1.3 mm deep, and the power supply groove 151 is 1.7 mm deep. The thicknesses of the electronic components placed in the above three grooves are adapted to the depths of the grooves. Because the power supply part 17, the FPC flexible board 14, and the magnetic attraction part 16 with adapted thicknesses are used, the thickness of the entire backplane 1 is reduced and the weight is lightened. The thicknesses of the films pasted on the cover plate 18 and the sheet 15 are both 0.25 mm.

[0025] As Figure 2 shown, step S3 further includes: S31: Process the side surface of the sheet 15 to form a through groove 155 on the side surface of the sheet 15, and the through groove 155 communicates with the FPC board groove 153; S32: Cut and process the FPC flexible board 14 to cut out an extension piece along the side surface of the FPC flexible board 14; S33: Pass the extension piece through the through groove 155 from the FPC board groove 153; S34: Bend the extension piece relative to the FPC flexible board 14; S35: Weld the button 13 on the extension piece.

[0026] It should be noted that the processing of the through groove 155 can be completed in step S1. The processing of the FPC flexible board 14 can be carried out by die punching, that is, using a die and stamping with a machine tool to process the FPC flexible board 14; it can also be processed by laser cutting of the FPC flexible board 14; similarly, numerical control knife cutting can be used to process the FPC flexible board 14.

[0027] In this embodiment, the button 13 is provided for the user to press to send command information to the FPC flexible board 14. A signal transceiver is integrated on the FPC flexible board 14. The FPC flexible board 14 sends the command information to the mobile device through the signal transceiver, so that the user can control the mobile device by pressing the button 13 on the protective cover. The command information can control the mobile device to answer and hang up calls, turn on and off recording, take pictures or open apps, etc., to improve the interactivity between the protective cover and the mobile device; the power supply component 17 is coupled to the FPC flexible board 14, and the charging contact 12 is coupled to the FPC flexible board 14. Specifically, the power supply component 17 is provided with a contact, and the FPC flexible board 14 is provided with a contact welded and coupled to the contact to realize the current transmission between the power supply component 17 and the FPC flexible board 14.

[0028] In other embodiments, the signal transceiver can also receive the command information sent by the mobile device to control the protective cover, and send a signal cut-off command to interrupt the signal connection between the signal transceiver and the mobile device.

[0029] As Figure 3 shown, step S34 includes: S341: Install the designed die on the bending equipment and adjust the position and height; S342: Place the FPC flexible board 14 on the die to ensure its position is accurate; S343: Bend the FPC flexible board 14 through a stamping tool to make it bend into the required shape and angle.

[0030] It should be noted that the bending process of the above FPC flexible board 14 is carried out at room temperature. In other embodiments, the bending process of the FPC flexible board 14 is carried out in a hot environment. The stamping tool is arranged on the bending die.

[0031] This embodiment designs a protective cover, as Figure 4 and Figure 5 shown. This protective cover is specifically a mobile phone case, which can wrap the back and sides of the mobile phone, prevent scratches when the mobile phone is knocked, and at the same time reduce the pressure when the mobile phone drops, playing a role in protecting the mobile phone. Button covers 21 corresponding to the mobile phone buttons are arranged on the side of the protective cover to protect the buttons of the mobile phone. In other embodiments, this protective cover can be a tablet computer protective case or a handheld game console protective case and other protective cases for other electronic devices.

[0032] The protective cover adopts the back plate 1 manufactured by the above process and a side plate 2 adapted to the back plate 1. The back plate 1 is used to fit the back of the mobile device, and the side plate 2 is used to fit the side of the mobile device to achieve the protection of the side and back of the mobile device. A power supply component 17 is arranged on the back plate 1. The power supply component 17 is used to charge the electronic components in the entire back plate 1. The specific charging method is: by integrating a power connection part on the FPC flexible board 14, and the power connection part can be coupled with an external charging device to realize the charging of the power supply component 17 by the external charging device.

[0033] In this embodiment, the external charging device is a charging cable, and the power connection part is a charging contact 12 for the external charging device to charge the power supply component 17 through the charging contact 12; in other embodiments, a wireless charging coil can be set to wirelessly charge the power supply component 17.

[0034] Preferably, a magnetic attraction piece 11 is arranged on one side close to the charging contact 12. The magnetic attraction piece 11 can be used for magnetic attraction alignment between the charging contact 12 and the external charging device to prevent the charging contact from being misaligned.

[0035] It should be added that a positioning part 156 is also arranged on the sheet material 15. The positioning part 156 is for installing the charging contact 12 and the magnetic attraction piece 11 on the substrate 15. Specifically, the positioning part 156 is a positioning groove, which is processed by a CNC device in the S1 step, and the shape of the positioning groove is adapted to the charging contact 12 and the magnetic attraction piece 11.

[0036] Preferably, a charging hole is opened on the cover plate 18. The charging hole can be processed by a CNC processing device in the S5 step. The charging hole 181 is for the charging contact 12 to be exposed so that the external charging device can be coupled with the charging contact 12.

[0037] Preferably, a clamping edge 154 is provided at the edge of the back plate 1, and a clamping groove 23 corresponding to the clamping edge 154 is provided on the side plate 2. The back plate 1 and the side plate 2 are clamped and assembled through the clamping edge 154 and the clamping groove 23. If the electronic components in the back plate 1 are damaged or the side plate 2 is damaged, the back plate 1 or the side plate 2 can be replaced without replacing the entire protective cover.

[0038] Preferably, the power supply component 17 is a rechargeable lithium battery. The signal transceiver is preferably Bluetooth. The magnetic attraction component 16 is preferably an annular magnet, and the magnetic attraction groove 152 is an annular groove for the annular magnet to be embedded.

[0039] It should be noted that the extension piece is also an FPC board, which is integrally formed with the FPC flexible board 14, and its bending is arranged on the side of the FPC flexible board 14 to fit the side plate 2 of the protective cover.

[0040] It should be noted that the button 13 is arranged on the extension piece. The button 13 is electrically connected to the FPC flexible board 14 through the extension piece, and the button 13 is arranged towards the outside of the mobile device cover for the user to press.

[0041] Preferably, a through groove 155 is provided on the side of the sheet 15. The through groove 155 allows the extension piece to extend through the sheet 15 to the side plate 2. The power connection part is arranged on one side close to the avoidance area.

[0042] The above is only used to illustrate the technical solution of the present invention and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A backplane processing technology, characterized in that, It includes the following steps: S1: Process the sheet material using a CNC device to machine a magnetic attraction groove, an FPC board groove, and a power supply groove; S2: Screen-print the magnetic attraction parts and laminate a film, then inspect the combination of the magnetic attraction parts and clean them; S3: Electrically connect and weld the positive and negative poles of the power supply parts to the FPC flexible board to form a component; S4: Place the magnetic attraction parts into the magnetic attraction groove, place the FPC flexible board into the FPC board groove, and place the power supply parts into the power supply groove; S5: Use a CNC device to machine the outer shape of the cover plate and perform cleaning; S6: Perform film laminating treatment on the cover plate and the sheet material, and use a film pressing device to press the cover plate and the sheet material together; S7: Irradiate the cover plate and the sheet material with a UV lamp to accelerate the fusion between the cover plate and the sheet material; S8: Dry the sheet material and the cover plate after the fusion is completed.

2. The backplane processing technology according to claim 1, characterized in that Step S3 further includes: S31: Machine the side surface of the sheet material to machine a through groove located on the side surface of the sheet material, and the through groove communicates with the FPC board groove; S32: Perform cutting processing on the FPC flexible board to cut out an extension piece along the side surface of the FPC flexible board; S33: Pass the extension piece through the through groove from the FPC board groove; S34: Bend the extension piece relative to the FPC flexible board; S35: Weld a button on the extension piece.

3. The backplane processing technology according to claim 2, characterized in that, Step S34 includes: S341: Install the designed mold on the bending device and adjust the position and height; S342: Place the FPC flexible board on the mold to ensure its position is accurate; S343: Perform a bending operation on the FPC flexible board through a stamping tool to bend it into the required shape and angle.

4. The backplane processing technology according to claim 2, characterized in that, Integrate a signal transceiver on the FPC flexible board, and the signal transceiver is signal-connected to a mobile device, so that the user can send command information to the FPC flexible board through the button, and the FPC flexible board sends the command information to the mobile device through the signal transceiver.

5. The backplane processing technology according to claim 1, characterized in that The temperature of the drying treatment is sixty degrees, and the time is five minutes.

6. The backplane processing technology according to claim 1, wherein, The materials of the sheet material and the cover plate are both PC materials.

7. The backplane processing technology according to claim 1, characterized in that An electricity connection part is integrated on the FPC flexible board, and the electricity connection part is used for an external charging device to charge the power supply part.

8. The backplane processing technology according to claim 1, characterized in that, The magnetic attraction groove is 1.2 mm deep, the FPC board groove is 1.3 mm deep, and the power supply groove is 1.7 mm deep.

9. The backplane processing technology according to claim 1, wherein The thickness of the film laminated on the cover plate and the sheet material is 0.25 mm.

10. A protective case, characterized in that, It is provided with the back plate, and also includes side plates. The side plates surround the edge of the back plate. The side plates protect the side surface of the mobile device. The extension piece is attached to the inner wall of the side plate. The button on the extension piece faces the side plate. The electricity connection part is arranged on the side of the back plate away from the mobile device.

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