Middle frame and terminal equipment

Abstract

The embodiment of the invention discloses a middle frame and terminal equipment. The middle frame comprises a middle plate, at least one middleware, at least one welding table and an outer frame, the at least one middle piece is fixedly connected to the edge of the middle plate; the at least one welding table is fixedly connected to the inner side of the outer frame; at least one welding table on the outer frame is connected with at least one middle piece on the middle plate in a welding mode. Due to the fact that the middle plate, the at least one middle piece, the at least one welding table and the outer frame are simple in structural form and can be independently produced, and the connection mode among the middle plate, the at least one middle piece, the at least one welding table and the outer frame is simple, compared with a produced integrally-formed middle frame, the production cost is reduced, and the production efficiency is improved. The processing technology of the middle frame provided by the embodiment of the invention is simpler, so that the time consumed for producing the middle frame is shorter. Moreover, the at least one welding table and the at least one middle piece are welded together, so that the middle frame can be ensured to have higher strength, and the middle frame has better supporting performance.

Description

[0001] This application is a divisional application. The application number of the original application is 201810175739.4, and the original application date is March 2, 2018. The entire content of the original application is incorporated into this application by reference. Technical Field

[0002] The embodiments of the present application relate to the field of machinery, and more specifically, to a middle frame and a terminal device. Background Art

[0003] With the development of smart phones, the industry pays more and more attention to the appearance and texture of smart phones. Due to its high strength and outstanding texture, stainless steel has become the material of the middle frame of many smart phones.

[0004] At present, in the related technology, a CNC (Computer Numerical Control) machine tool is used to process a stainless steel plate into an integrally formed middle frame. However, it takes a long time to produce such an integrally formed middle frame. Summary of the invention

[0005] The embodiment of the present application provides a middle frame and a terminal device to solve the problem that the production of the middle frame takes a long time. The embodiment of the present application is implemented as follows:

[0006] In the first aspect, an embodiment of the present application provides a middle frame, including a middle plate, at least one middle piece, at least one welding platform and an outer frame; at least one middle piece is fixedly connected to the edge of the middle plate; at least one welding platform is fixedly connected to the inner side of the outer frame; at least one welding platform on the outer frame is welded to at least one middle piece on the middle plate.

[0007] In the first aspect, since the structural forms of the middle plate, at least one middle piece, at least one welding station and the outer frame are relatively simple and can all be produced separately, and the connection method between the middle plate, at least one middle piece, at least one welding station and the outer frame is relatively simple, compared with producing an integrally formed middle frame, the processing technology of the middle frame provided in the embodiment of the present application is simpler, so the time consumption for producing the middle frame is shorter; in addition, since at least one welding station is fixedly connected to the inner side of the outer frame and at least one middle piece is fixedly connected to the edge of the middle plate, it is convenient to weld at least one welding station and at least one middle piece together, thereby ensuring that the middle frame has a higher strength so that the middle frame has better supporting performance.

[0008] In a possible implementation, a first end of at least one middle piece is fixedly connected to an edge of the middle plate, and a second end of at least one middle piece extends in a direction away from the middle plate;

[0009] The first end of at least one welding platform is fixedly connected to the inner side of the outer frame, and the second end of at least one welding platform extends toward the inner side of the outer frame;

[0010] The second end of at least one welding platform on the outer frame is welded to the second end of at least one middle piece on the middle plate, and a gap is formed between the outer frame and the middle plate.

[0011] Among them, although the middle plate will conduct heat to the outer frame through the second end of at least one welding station and the second end of at least one intermediate piece, the outer frame and the middle plate are partially connected, and there is still a certain gap between the outer frame and the middle plate. Therefore, the speed at which the middle plate conducts heat to the outer frame through the local connection is relatively slow, so the gap between the outer frame and the middle plate can have a heat insulation effect.

[0012] In a possible implementation manner, the gap formed between the outer frame and the middle plate is filled with plastic.

[0013] Among them, the middle frame can have better cushioning performance when falling.

[0014] In a possible implementation manner, at least one intermediate piece is cast-in-place connected to an edge of the middle plate.

[0015] In the die-casting process of the middle plate, at least one intermediate piece is embedded in the middle plate while the middle plate is in a molten state, so that the at least one intermediate piece can be better fixed on the middle plate.

[0016] In a possible implementation manner, the longest distance of the portion of the at least one intermediate piece embedded in the middle plate on a cross section substantially parallel to the middle plate is 100 mm.

[0017] In a possible implementation, the depth to which the at least one intermediate piece is embedded in the middle plate is less than or equal to 10 mm.

[0018] In a possible implementation, at least one groove is provided on the surface of the middle plate, a buckle is provided on at least one middle piece, and the buckle of at least one middle piece is embedded in at least one groove of the middle plate.

[0019] Among them, after the buckle of at least one middle piece is embedded in the at least one groove of the middle plate, the buckle of at least one middle piece will firmly hook the at least one groove of the middle plate, so that the connection performance between the at least one middle piece and the middle plate is better.

[0020] In a possible implementation manner, the fixed connection includes at least one of an embedded casting connection, a bonding connection, a riveting connection, a locking screw connection, and a groove snap connection.

[0021] In one possible implementation, at least one intermediate piece is made of a first metal material, at least one welding station is made of a second metal material, the difference between the melting point of the first metal material and the melting point of the second metal material is less than or equal to a melting point threshold, and the melting point threshold is used to indicate the weldability between the two metal materials.

[0022] The melting point threshold is used to indicate the welding performance between two metal materials. If the difference between the melting points of the two metal materials is less than or equal to the melting point threshold, it means that the welding performance of the two metal materials is good; if the difference between the melting points of the two metal materials is greater than the melting point threshold, it means that the welding performance of the two metal materials is poor. Therefore, in order to ensure the welding strength between at least one intermediate piece and at least one welding station, two metal materials with good welding performance need to be selected.

[0023] In one possible implementation, at least one intermediate piece is made of a first metal material, and at least one welding station is made of a second metal material. The first metal material and the second metal material have the same main element, and the weight percentage content of the main element in the first metal material and the weight percentage content of the main element in the second metal material are both greater than or equal to a threshold, and the threshold ranges from 60% to 100%.

[0024] The threshold is the dividing value of the weight percentage of the main element in the metal material, which is used to measure whether the two metal materials are the same material. When at least one intermediate piece and at least one welding station are made of the same material, the best welding effect can be achieved.

[0025] In a possible implementation manner, the first metal material and the second metal material are both stainless steel, titanium alloy, aluminum alloy, magnesium alloy, zinc alloy or copper alloy.

[0026] In a possible implementation, the outer frame is obtained by bending and welding a rolled stainless steel profile.

[0027] The following is a brief introduction on how to obtain the outer frame: first, the stainless steel sheet can be rolled to obtain a stainless steel profile; then, the stainless steel profile is bent into a rectangle with a notch; finally, the rectangular stainless steel profile with a notch is welded into a closed rectangular outer frame.

[0028] Among them, since the outer frame is obtained by bending and welding the stainless steel profile, no raw materials will be wasted in the process of processing the outer frame.

[0029] In a second aspect, an embodiment of the present application provides a terminal device, which includes a display screen and a back shell. The terminal device also includes a middle frame disclosed in the first aspect and any possible implementation of the first aspect, wherein the display screen and the back shell are fixed on both sides of the middle frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Shown is a schematic diagram of a middle plate and at least one middle piece of a middle frame disclosed in an embodiment of the present application;

[0031] Figure 2 Shown is a schematic diagram of at least one welding station and an outer frame of a middle frame disclosed in an embodiment of the present application;

[0032] Figure 3 The figure shows an overall schematic diagram of a middle frame disclosed in an embodiment of the present application;

[0033] Figure 4 Shown is Figure 1 The enlarged schematic diagram at A in the middle;

[0034] Figure 5 Shown is Figure 1 The enlarged cross-sectional view at A in the middle;

[0035] Figure 6 Shown is a schematic diagram of a middle plate and at least one middle piece of another middle frame disclosed in an embodiment of the present application;

[0036] Figure 7 Shown is a schematic diagram of a terminal device disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0038] See also Figures 1 to 3 As shown, Figure 1 The figure shows a schematic diagram of a middle plate and at least one middle piece of a middle frame disclosed in an embodiment of the present application. Figure 2 The figure shows a schematic diagram of at least one welding station and an outer frame of a middle frame disclosed in an embodiment of the present application. Figure 3 What is shown is an overall schematic diagram of a middle frame disclosed in an embodiment of the present application.

[0039] exist Figures 1 to 3 In the illustrated embodiment, the middle frame 10 provided in the embodiment of the present application includes a middle plate 1, at least one middle piece 2, at least one welding platform 3 and an outer frame 4, wherein at least one middle piece 2 is fixedly connected to the edge of the middle plate 1, at least one welding platform 3 is fixedly connected to the inner side of the outer frame 4, and at least one welding platform 3 on the outer frame 4 is welded to at least one middle piece 2 on the middle plate 1.

[0040] exist Figures 1 to 3In the illustrated embodiment, since the structural forms of the middle plate 1, at least one middle piece 2, at least one welding platform 3 and the outer frame 4 are relatively simple and can all be produced separately, and the connection method between the middle plate 1, at least one middle piece 2, at least one welding platform 3 and the outer frame 4 is relatively simple, relative to producing an integrally formed middle frame, the processing technology of the middle frame 10 provided in the embodiment of the present application is simpler, so the time consumption for producing the middle frame 10 is relatively short; in addition, since at least one welding platform 3 is fixedly connected to the inner side of the outer frame 4 and at least one middle piece 2 is fixedly connected to the edge of the middle plate 1, it is convenient to weld at least one welding platform 3 and at least one middle piece 2 together, thereby ensuring that the middle frame 10 has a higher strength, so that the middle frame 10 has better supporting performance.

[0041] There are many types of fixed connection methods. For example, the fixed connection may include at least one of an embedded casting connection, a bonding connection, a riveting connection, a locking screw connection, and a groove snap connection.

[0042] In order to ensure that the middle frame 10 has good strength, at least one intermediate piece 2, at least one welding platform 3 and the outer frame 4 can be made of high-strength metals such as stainless steel or titanium alloy, and the middle plate 1 can be made of metals such as aluminum alloy or copper alloy.

[0043] In the traditional process of making the outer frame, the original shape of the outer frame needs to be cut out from the whole steel plate, and the rest of the whole steel plate will be discarded, so the traditional process of making the outer frame will waste a large amount of metal materials.

[0044] In order to save raw materials when processing the outer frame 4, the outer frame 4 of the embodiment of the present application can be obtained by bending and welding the rolled stainless steel profile. The following briefly describes how to obtain the outer frame 4: first, a stainless steel sheet can be rolled to obtain a stainless steel profile; then, the stainless steel profile is bent into a rectangle with a notch; finally, the rectangular stainless steel profile with a notch is welded into a closed rectangular outer frame 4.

[0045] Among them, since the outer frame 4 is obtained by bending and welding a stainless steel profile, no raw materials will be wasted during the process of processing the outer frame 4 .

[0046] exist Figures 1 to 3 In the embodiment shown, in order to ensure the welding strength between at least one intermediate piece 2 and at least one welding station 3, the embodiment of the present application may adopt the following method:

[0047] Among them, at least one intermediate piece 2 is made of a first metal material, at least one welding platform 3 is made of a second metal material, and the difference between the melting points of the first metal material and the second metal material is less than or equal to the melting point threshold.

[0048] Among them, the first metal material and the second metal material mentioned in the embodiment of the present application can be of many types. For example, the first metal material and the second metal material are both stainless steel; for another example, the first metal material and the second metal material are both titanium alloys; for another example, the first metal material and the second metal material are both aluminum alloys; for another example, the first metal material and the second metal material are both magnesium alloys; for another example, the first metal material and the second metal material are both zinc alloys; for another example, the first metal material and the second metal material are both copper alloys. Of course, the first metal material and the second metal material mentioned in the embodiment of the present application are not limited to the metal materials mentioned above.

[0049] In addition, there are many materials that can be selected for the materials of the middle plate 1 and the outer frame 4 , and the embodiments of the present application do not limit the materials of the middle plate 1 and the outer frame 4 .

[0050] exist Figures 1 to 3 In the illustrated embodiment, the melting point threshold is used to indicate the weldability between two metal materials. If the difference in melting points of the two metal materials is less than or equal to the melting point threshold, it indicates that the weldability of the two metal materials is good; if the difference in melting points of the two metal materials is greater than the melting point threshold, it indicates that the weldability of the two metal materials is poor. Therefore, in order to ensure the welding strength between at least one intermediate piece 2 and at least one welding station 3, it is necessary to select two metal materials with good weldability.

[0051] exist Figures 1 to 3 In the embodiment shown, in order to ensure the welding strength between at least one intermediate piece 2 and at least one welding platform 3, the embodiment of the present application may also adopt the following method:

[0052] Among them, the material of at least one intermediate part 2 is a first metal material, the material of at least one welding platform 3 is a second metal material, the main elements of the first metal material and the second metal material are the same, and the weight percentage content of the main element in the first metal material and the weight percentage content of the main element in the second metal material are both greater than or equal to a threshold, wherein the threshold ranges from 60% to 100%.

[0053] The threshold is the dividing value of the weight percentage content of the main element in the metal material, which is used to measure whether the two metal materials are the same material. For example, assuming that the threshold is set to 60%, if the main element in the first metal material is the same as the main element in the second metal material, and the weight percentage content of the main element in the first metal material is greater than 60%, and the weight percentage content of the main element in the second metal material is also greater than 60%, then the first metal material and the second metal material are the same material.

[0054] Among them, the first metal material and the second metal material mentioned in the embodiment of the present application can be of many types. For example, the first metal material and the second metal material are both stainless steel; for another example, the first metal material and the second metal material are both titanium alloys; for another example, the first metal material and the second metal material are both aluminum alloys; for another example, the first metal material and the second metal material are both magnesium alloys; for another example, the first metal material and the second metal material are both zinc alloys; for another example, the first metal material and the second metal material are both copper alloys. Of course, the first metal material and the second metal material mentioned in the embodiment of the present application are not limited to the metal materials mentioned above.

[0055] In addition, there are many materials that can be selected for the materials of the middle plate 1 and the outer frame 4 , and the embodiments of the present application do not limit the materials of the middle plate 1 and the outer frame 4 .

[0056] exist Figures 1 to 3 In the illustrated embodiment, the best welding effect can be achieved when at least one intermediate piece 2 and at least one welding station 3 are made of the same material.

[0057] exist Figures 1 to 3 In the embodiment shown, since the middle plate 1 is in contact with components with high heat generation, such as the battery, chip, and circuit board, the middle plate 1 will conduct the heat outward. If there is no gap between the middle plate 1 and the outer frame 4 and they fit completely, the middle plate 1 will conduct all the heat to the outer frame 4, so that the user's hand will feel hot when it touches the outer frame 4 with a higher temperature.

[0058] In order to make the middle frame 10 have a better heat insulation effect, the embodiment of the present application can ensure that a gap is formed between the outer frame 4 and the middle plate 1 in the following manner:

[0059] Among them, the first end of at least one middle piece 2 is fixedly connected to the edge of the middle plate 1, and the second end of at least one middle piece 2 extends away from the middle plate 1; the first end of at least one welding platform 3 is fixedly connected to the inner side of the outer frame 4, and the second end of at least one welding platform 3 extends to the inner side of the outer frame 4; the second end of at least one welding platform 3 on the outer frame 4 is welded to the second end of at least one middle piece 2 on the middle plate 1, and a gap is formed between the outer frame 4 and the middle plate 1.

[0060] exist Figures 1 to 3 In the illustrated embodiment, although the middle plate 1 conducts heat to the outer frame 4 through the second end of at least one welding station 3 and the second end of at least one intermediate piece 2, the outer frame 4 and the middle plate 1 are partially connected, and there is still a certain gap between the outer frame 4 and the middle plate 1. Therefore, the speed at which the middle plate 1 conducts heat to the outer frame 4 through the local connection is relatively slow, so the gap between the outer frame 4 and the middle plate 1 can have a heat insulating effect.

[0061] exist Figure 3In the illustrated embodiment, in order to make the middle frame 10 have better cushioning performance when falling, the embodiment of the present application may adopt the following method: the gap formed between the outer frame 4 and the middle plate 1 is filled with plastic 5.

[0062] exist Figures 1 to 3 In the embodiment shown, in order to better fix at least one middle piece 2 on the edge of the middle plate 1, the embodiment of the present application may adopt the following method:

[0063] At least one intermediate piece 2 is cast and connected to the edge of the middle plate 1 .

[0064] exist Figures 1 to 3 In the illustrated embodiment, during the die-casting process of the middle plate 1 , at least one intermediate piece 2 is embedded in the middle plate 1 while it is in a molten state, so that the at least one intermediate piece 2 can be better fixed on the middle plate 1 .

[0065] In order to ensure that the connection between the at least one intermediate piece 2 and the middle plate 1 is more stable, a plurality of holes may be provided on the at least one intermediate piece 2, and during the die-casting process of the middle plate 1, the molten metal may flow into the plurality of holes on the at least one intermediate piece 2. After the die-casting of the middle plate 1 is completed, the connection between the middle plate 1 and the at least one intermediate piece 2 will become more stable.

[0066] In addition, the shape of the at least one middle piece 2 can be of many kinds. For example, the at least one middle piece 2 can be a rectangular parallelepiped structure. Of course, the embodiment of the present application does not limit the specific shape of the at least one middle piece 2.

[0067] See also Figure 4 and Figure 5 As shown, Figure 4 Shown is Figure 1 The enlarged schematic diagram at A in the middle, Figure 5 Shown is Figure 1 Enlarged cross-sectional view at point A.

[0068] exist Figure 4 In the embodiment shown, the depth of at least one intermediate member 2 embedded in the middle plate 1 may be less than or equal to 10 mm. Figure 4 In the figure, the portion where the middle piece 2 is embedded in the middle plate 1 is the shaded portion of the middle piece 2, and the depth where the middle piece 2 is embedded in the middle plate 1 is 10 mm.

[0069] exist Figure 5 In the embodiment shown, the longest distance of the portion of at least one intermediate member 2 embedded in the middle plate 1 on the cross section substantially parallel to the middle plate 1 may be 100 mm. Figure 5 In the embodiment, the longest distance of the portion of the intermediate member 2 embedded in the middle plate 1 on the cross section substantially parallel to the middle plate 1 may be 100 mm.

[0070] See also Figure 6 As shown, Figure 6 The figure shows a schematic diagram of another middle plate and at least one middle piece of a middle frame disclosed in an embodiment of the present application. Figure 6 In the embodiment shown, in order to better fix at least one intermediate member 7 on the edge of the middle plate 6, the embodiment of the present application may adopt the following method:

[0071] exist Figure 6 In the illustrated embodiment, at least one groove 61 is provided on the surface of the middle plate 6 , and at least one intermediate piece 7 is provided with a buckle 71 . The buckle 71 of at least one intermediate piece 7 is embedded in the at least one groove 61 of the middle plate 6 .

[0072] exist Figure 6 In the illustrated embodiment, after the buckle 71 of at least one middle piece 7 is embedded in at least one groove 61 of the middle plate 6, the buckle 71 of at least one middle piece 7 will firmly hook the at least one groove 61 of the middle plate 6, so that the connection performance between at least one middle piece 7 and the middle plate 6 is better.

[0073] See also Figure 7 As shown, Figure 7 Shown is a schematic diagram of a terminal device disclosed in an embodiment of the present application. Figure 7 The terminal device shown includes a display screen 20, a back shell 30 and Figure 3 The middle frame 10 is shown, wherein the display screen 20 and the back shell 30 are fixed on both sides of the middle frame 10 .

Claims

1. A middle frame, characterized in that: It includes a middle plate, at least one middle piece, at least one welding station and an outer frame; The at least one intermediate member is fixedly connected to the edge of the middle plate; The at least one welding station is fixedly connected to the inner side of the outer frame; The at least one welding platform on the outer frame is welded to the at least one intermediate piece on the middle plate; A gap is formed between the outer frame and the middle plate; the gap is filled with plastic, and the plastic is arranged at intervals along the circumference of the outer frame.

2. The middle frame according to claim 1, characterized in that: The first end of the at least one middle piece is fixedly connected to the edge of the middle plate, and the second end of the at least one middle piece extends in a direction away from the middle plate; A first end of the at least one welding platform is fixedly connected to the inner side of the outer frame, and a second end of the at least one welding platform extends toward the inner side of the outer frame; The second end of the at least one welding platform on the outer frame is welded to the second end of the at least one middle piece on the middle plate.

3. The middle frame according to claim 1 or 2, characterized in that: The plastic and the welding platform are spaced apart.

4. The middle frame according to claim 1, characterized in that: The at least one intermediate member is cast-in-place connected to the edge of the middle plate.

5. The middle frame according to claim 4, characterized in that: The longest distance of the portion of the at least one intermediate member embedded in the middle plate on a cross section substantially parallel to the middle plate is 100 mm.

6. The middle frame according to claim 4, characterized in that: The at least one intermediate piece is embedded in the middle plate to a depth less than or equal to 10 mm.

7. The middle frame according to claim 1, characterized in that: At least one groove is arranged on the surface of the middle plate, and a buckle is arranged on the at least one middle piece, and the buckle of the at least one middle piece is embedded in the at least one groove of the middle plate.

8. The middle frame according to any one of claims 1 to 6, characterized in that: The fixed connection includes at least one of an embedded casting connection, a bonding connection, a riveting connection, a locking screw connection and a groove snap connection.

9. The middle frame according to any one of claims 1 to 7, characterized in that: The material of the at least one intermediate piece is a first metal material, and the material of the at least one welding station is a second metal material. The main elements of the first metal material and the second metal material are the same, and the weight percentage content of the main element in the first metal material and the weight percentage content of the main element in the second metal material are both greater than or equal to a threshold, and the range of the threshold is 60% to 100%.

10. The middle frame according to claim 9, characterized in that: The first metal material and the second metal material are both stainless steel, titanium alloy, aluminum alloy, magnesium alloy, zinc alloy or copper alloy.

11. A terminal device, comprising a display screen and a back shell, characterized in that: Also includes the middle frame according to any one of claims 1 to 10; Wherein, the display and the back shell are fixed on two sides of the middle frame.

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