Combined mobile phone middle frame

Abstract

The utility model discloses a combined mobile phone middle frame, which comprises a frame, a middle partition plate and connecting glue, the frame is of a square frame structure integrally defined by vertical plates on the four sides, and the frame is made of stainless steel or titanium alloy or aluminum alloy and is formed through extrusion of a forming machine. The middle partition plate is located in the hollow through hole of the frame, is made of aluminum alloy and is integrally formed in a die-casting mode through a die-casting machine. The connecting glue is located between the frame and the middle partition plate. The connecting glue is made of PPS or PBT materials; the periphery of the connecting glue is connected with the inner side face of the periphery of the frame and the outer side face of the periphery of the middle partition plate in the nanometer injection molding process. The periphery of the connecting glue is connected with the corresponding positions of the frame and the middle partition plate in the nanometer injection molding process, and therefore the connecting stability and the sealing performance between the frame and the middle partition plate can be improved.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone mid-frame technology, specifically to a modular mobile phone mid-frame. Background Technology

[0002] Metal has been a favorite material for human appearance since ancient times, and its beautiful appearance has led to its widespread use in mobile phone casings.

[0003] Existing mobile phone mid-frames generally consist of a frame and a panel, both typically manufactured as a single piece. However, some mid-frames are manufactured using a separate process. For example, application publication number CN109277755A discloses a die-cast composite aluminum mobile phone mid-frame, which comprises a frame and a panel. The frame is a hollow square structure formed by four integrally formed side panels. The panel is located within the frame, with one side being flat and the other side being a non-planar surface with several cavities. The frame is made of aluminum-titanium alloy, and the panel is a one-piece die-cast panel. The length of the frame is considered the left-right direction, and the width of the frame is considered the front-back direction. The die-cast panel is located in the middle of the frame. Within the empty area, there is a gap between the left end face of the die-cast panel and the left inner side wall of the frame, and between the right end face of the die-cast panel and the right inner side wall of the frame. The front and rear sides of the die-cast panel are respectively provided with side panels that are vertically arranged outside the die-cast panel and closely fitted to the front and rear inner side walls of the frame. The die-cast panel is located in the middle of the side panel. The length of the side panel in the vertical direction is shorter than the height of the frame in the vertical direction. The upper and lower ends of the side panel are welded to the frame using a laser welding machine.

[0004] However, the aforementioned die-cast composite aluminum mobile phone frame still has some drawbacks. For example, the die-cast panel is only welded to the frame using the upper and lower surfaces of its front and rear side panels via laser welding. This partial welding structure is not good enough in terms of overall connection stability and sealing.

[0005] Therefore, improvements are needed to the existing technology. Utility Model Content

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a modular mobile phone frame that utilizes a connecting adhesive to connect the frame and the middle partition at corresponding positions on all four sides through a nano-injection molding process, thereby improving the connection stability and sealing between the frame and the middle partition.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A modular mobile phone frame includes a frame, a partition plate, and a connecting adhesive. The frame is a square frame structure integrally formed by four side panels, and is made of stainless steel, titanium alloy, or aluminum alloy, formed by extrusion molding. The partition plate is located in a hollow through-hole of the frame, and is made of aluminum alloy, formed by die casting. The connecting adhesive is located between the frame and the partition plate, and is made of PPS or PBT material. During nano-injection molding, the connecting adhesive is bonded to the inner four sides of the frame and the outer four sides of the partition plate. The connecting adhesive can improve the connection stability and sealing between the frame and the partition plate.

[0009] It also includes the following technical solutions:

[0010] Furthermore, the upper and lower ends of the adhesive are located in the hollow through-hole of the frame, and the upper end of the adhesive is lower than the upper end of the frame, while the lower end of the adhesive is higher than the lower end of the frame.

[0011] Furthermore, the upper end face of the partition plate is flush with the upper end face of the connecting adhesive, and the lower end face of the partition plate is flush with the lower end face of the connecting adhesive.

[0012] Furthermore, the upper and lower surfaces of the partition plate are both non-planar surfaces with several concave cavities.

[0013] Furthermore, the four corners of the frame, the partition plate, and the connecting adhesive are all curved to ensure the tactile feel of the frame.

[0014] Furthermore, the frame and the partition plate are respectively connected to the adhesive by pre-embedding, thereby ensuring connection stability.

[0015] Furthermore, the aluminum alloy material of the partition plate is a high thermal conductivity aluminum alloy.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention, by setting a connecting adhesive, utilizes the nano-injection molding process to form a connection structure with the corresponding positions of the frame and the middle partition on all four sides. The connection structure on all four sides has a wider connection area, which can be used to improve the connection stability and sealing between the frame and the middle partition. In this way, it can also improve the drop resistance and waterproofness of the mobile phone frame, etc., making it highly practical. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0020] Figure 3 This is a side view of the present invention;

[0021] Figure 4 yes Figure 3 Cross-sectional view along the middle AA;

[0022] Figure 5 This is an exploded view of this utility model.

[0023] Figure label:

[0024] 1. Frame; 2. Divider; 3. Connecting adhesive; 4. Hollow through hole; 5. Cavity. Detailed Implementation

[0025] The specific implementation methods according to this disclosure are described below with reference to the accompanying drawings.

[0026] like Figures 1-5 As shown, a modular mobile phone frame includes a frame 1, a partition 2, and a connecting adhesive 3.

[0027] Specifically, frame 1 is a square frame structure formed by four integrated side panels. Frame 1 is made of stainless steel, titanium alloy, or aluminum alloy and is extruded using a forming machine. Specifically, frame 1 made of stainless steel has advantages such as high hardness, strong impact resistance, and good appearance and texture. It can effectively resist scratches and wear, and also has good impact resistance. At the same time, it also has a high-end appearance and feel. Frame 1 made of titanium alloy has advantages such as light weight, high strength, strong corrosion resistance, resistance to extreme temperatures, and aesthetics. It can also effectively resist scratches and wear and maintain good condition in various environments. At the same time, it also has a high-end appearance and feel.

[0028] Specifically, the partition 2 is located in the hollow through hole 4 of the frame 1. The partition 2 is made of aluminum alloy and is integrally die-cast by a die-casting machine.

[0029] Specifically, if the frame 1 and the partition 2 are made of aluminum alloy, then commercially available materials can be selected. Preferably, the aluminum alloy can be selected with a tensile strength ≥190MPa, yield strength ≥90MPa, elongation ≥180%, and Brinell hardness ≥55HB, so that all aspects of the aluminum alloy can meet the manufacturing requirements.

[0030] In addition, the density of this aluminum alloy is ≥2.73 g / cm³. 3The aluminum alloy should have a thermal conductivity ≥180 W / (m·K) and an electrical conductivity ≥30 mS / m to ensure satisfactory production results. Furthermore, a low slag content should be selected to guarantee material purity. The aluminum alloy should have a clean surface, free of oil, slag, and non-metallic impurities, although normal cracking is permissible.

[0031] More specifically, the aluminum alloy material of the partition 2 is a high thermal conductivity aluminum alloy, which can enhance the heat dissipation effect.

[0032] The connecting adhesive 3 is located between the frame 1 and the partition 2; the connecting adhesive 3 is made of PPS or PBT material; the connecting adhesive 3 is connected to the inner sides of the frame 1 and the outer sides of the partition 2 respectively during the nano-injection molding process.

[0033] In summary, by setting the connecting adhesive 3, this utility model utilizes the nano-injection molding process to form a connection structure with the corresponding positions of the frame 1 and the middle partition 2 on all four sides. The connection structure on all four sides has a wider connection area, which can be used to improve the connection stability and sealing between the frame 1 and the middle partition 2. In this way, it can also improve the drop resistance and waterproofness of the mobile phone frame, etc., making it highly practical.

[0034] like Figure 1 , Figure 4 and Figure 5 As shown, preferably, for other settings of the adhesive 3, its upper and lower ends are located in the hollow through hole 4 of the frame 1, and the upper end of the adhesive 3 is lower than the upper end of the frame 1, while the lower end of the adhesive 3 is higher than the lower end of the frame 1. That is, neither the upper nor lower end of the adhesive 3 extends beyond the upper or lower end of the frame 1.

[0035] like Figure 4 As shown, preferably, the upper end face of the partition plate 2 is flush with the upper end face of the connecting adhesive 3, and the lower end face of the partition plate 2 is flush with the lower end face of the connecting adhesive 3.

[0036] like Figure 1 and Figure 2 As shown, preferably, the upper and lower surfaces of the partition plate 2 are both non-planar surfaces with a plurality of recesses 5.

[0037] like Figure 1 and Figure 2 As shown, the four corners of the frame 1, the partition 2, and the connecting adhesive 3 are all curved, which creates a good tactile feel and avoids any bumps.

[0038] During production, the frame 1 and the partition 2 are first made separately. Then, the frame 1 and the partition 2 are placed into the preset positions of the mold. Next, during the nano-injection molding process, the connecting adhesive 3 is injected between the frame 1 and the partition 2. Therefore, the frame 1 and the partition 2 are connected to the connecting adhesive 3 by pre-embedding, and the connection structure is stable.

[0039] The scope of this utility model is not defined by the embodiments described above, but by the appended claims and their equivalents.

Claims

1. A modular mobile phone frame, characterized in that: Includes a frame, a partition, and adhesive. The frame is a square frame structure formed by four side panels, and the frame is made of stainless steel, titanium alloy or aluminum alloy and is formed by extrusion by a forming machine. The partition plate is located in the hollow through hole of the frame, and the partition plate is made of aluminum alloy and is integrally die-cast by a die-casting machine; The adhesive is located between the frame and the partition plate; the adhesive is made of PPS or PBT material; the adhesive is connected to the inner sides of the frame and the outer sides of the partition plate through nano-injection molding; the adhesive can be used to improve the connection stability and sealing between the frame and the partition plate.

2. The combined mobile phone frame according to claim 1, characterized in that: The upper and lower ends of the adhesive are located in the hollow through-hole of the frame, and the upper end of the adhesive is lower than the upper end of the frame, while the lower end of the adhesive is higher than the lower end of the frame.

3. The combined mobile phone frame according to claim 2, characterized in that: The upper end face of the partition plate is flush with the upper end face of the connecting adhesive, and the lower end face of the partition plate is flush with the lower end face of the connecting adhesive.

4. The combined mobile phone frame according to claim 1, characterized in that: The upper and lower surfaces of the partition plate are both non-planar surfaces with several concave cavities.

5. The combined mobile phone frame according to claim 1, characterized in that: The four corners of the frame, the partition, and the adhesive all have an arc-shaped transition.

6. The combined mobile phone frame according to claim 1, characterized in that: The frame and the partition are respectively connected to the adhesive by pre-embedding.

7. The combined mobile phone frame according to claim 1, characterized in that: The aluminum alloy material of the partition plate is a high thermal conductivity aluminum alloy.

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