Metal shell for electronic equipment

Abstract

The utility model relates to the field of metal parts of electronic equipment, and discloses a metal shell for electronic equipment, which comprises a metal shell body, a processing surface is arranged on the metal shell body, a processing area is formed on the processing surface corresponding to a plastic part structure needing to be formed, a molding structure is formed on the processing area, and the molding structure is formed on the processing area. And an injection molding part which is in mortise and tenon joint with the molding structure is arranged on the processing area. The molding structure is arranged on the processing area, so that the injection molding part can be combined with the metal shell body without a T treatment process during injection molding, and the efficiency and the yield can be improved in the processing process of the metal shell while the connection firmness is ensured through mortise and tenon matching and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic equipment metal piece field, especially electronic equipment with metal shell. BACKGROUND

[0002] As one of electronic equipment, notebook computer, in order to meet light and thin wear resistance, good heat insulation and high strength and other characteristics, often adopt aluminum, magnesium alloy or aluminum alloy to make light portable notebook computer.

[0003] Metal shell needs to be injection molded on the selected material in the processing process, and the conventional processing mode is to use T treatment process or directly use glue to stick on the selected material, T treatment process is to make the product surface corrosion produce nanometer level honeycomb mesh, the mesh retains the coupling agent attached in the T treatment process, and the injection molding material and the coupling agent produce chemical reaction by using rapid heating mode when injection molding, so as to firmly connect. This processing mode not only damages the material, and the injection molding material must use specific plastic materials such as PPS (polyphenylene sulfide), PBT (polybutylene terephthalate), nylon, etc. to complete the injection molding treatment, these specific plastic materials are relatively high in cost, and the use of injection molding material is limited. SUMMARY

[0004] In view of the above technical problems of the prior art, the utility model provides a metal shell for electronic equipment to solve the problem of high cost and limited material of traditional metal shell structure using T treatment process for injection molding.

[0005] To solve the above technical problems, one technical scheme of the utility model is to provide a metal shell for electronic equipment, which comprises a metal shell body and an injection molding part.

[0006] Further, the processing area includes a first processing area located at the edge and corner of the processing surface, and the plastic structure includes a barb structure formed on the first processing area.

[0007] Further, the barb structure is integrally stamped and formed with the metal shell body.

[0008] Further, the side of the metal shell body away from the processing surface is a back side, and the barb structure includes a barb part extending from the first processing area away from the back side.

[0009] Further, the barb part is inclined inward along the horizontal distribution direction of the metal shell body. Further, the barb part is inclined inward along the horizontal distribution direction of the metal shell body.

[0010] Further, the barb structure further comprises a combination groove recessed from the back side corresponding to the first processing area where the barb part is located, and the combination groove is opened outwardly relative to the metal shell body along the horizontal distribution direction of the combination groove.

[0011] Further, the injection molding part has a first combination part wrapped on the outer side of the barb part and the first processing area, and a second combination part arranged in the combination groove, and the second combination part is flush with the back side.

[0012] Further, the processing area comprises a second processing area located in the inner side part of the edge and the corner of the processing surface, and the injection molding structure comprises a hook groove structure formed on the second processing area.

[0013] Further, the hook groove structure comprises a groove recessed on the second processing area, and the two side walls of the groove are inclined away from the side of the processing surface, so that the groove bottom of the groove is widened relative to the groove opening, and the inner folding angle is formed on both sides of the groove bottom of the groove, and the two side walls of the groove are located between the groove opening side and the processing surface to form a barb part.

[0014] Further, the injection molding part abuts against the processing surface and has a third combination part matched with the groove to be combined in the groove.

[0015] The metal shell for electronic equipment has at least the following beneficial effects: by arranging the injection molding structure on the processing area, the injection molding part can be combined with the metal shell body without T treatment process during injection molding, the connection firmness is ensured by the mortise and tenon cooperation, the cost is reduced, and the efficiency and yield are improved during the metal shell processing. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a partial structure schematic view of the metal shell of the embodiment one of the present application;

[0018] Figure 2 It is a partial schematic view of the metal shell body and the injection molding structure of the embodiment one of the present application;

[0019] Figure 3 It is a structure schematic view of the metal shell of the embodiment two of the present application;

[0020] Figure 4 It is a front view of the metal shell of the embodiment two of the present application;

[0021] Figure 5 is an enlarged schematic view of part A shown in Figure 4

[0022] Figure 6 is a structural schematic view of the metal shell body of the second embodiment of the utility model;

[0023] Figure 7 is a front view of the metal shell body of the second embodiment of the utility model;

[0024] Figure 8 is an enlarged schematic view of part B shown in Figure 7

[0025] Figure 9 is a structural schematic view of the metal shell of the third embodiment of the utility model;

[0026] Figure 10 is a front view of the metal shell of the third embodiment of the utility model;

[0027] Figure 11 is a structural schematic view of the metal shell body of the third embodiment of the utility model;

[0028] Figure 12 is a front view of the metal shell body of the third embodiment of the utility model.

[0029] The meanings of various reference numerals in the drawings are as follows:

[0030] Metal shell body 1, processing surface 11, first processing area 121, second processing area 122, back surface 13, injection molding part 2, first combining part 21, second combining part 22, third combining part 23, barb structure 31, barb part 311, combining groove 312, hook groove structure 32, groove 321, inner folding angle 3211, barb part 3212, first arm segment 3213, second arm segment 3214. DETAILED DESCRIPTION

[0031] The utility model will be further described below in combination with the drawings.

[0032] Please refer to Figures 1 to 12 The metal shell for electronic equipment of the utility model includes metal shell body 1 and injection molding part 2 arranged on metal shell body 1, metal shell body 1 can be used for the metal piece of electronic equipment such as notebook computer metal shell and is adapted to it, injection molding part 2 then designs corresponding mould according to the demand of manufacturer, has the shape required on the mould and is connected on metal shell body 1 in the injection molding mode.

[0033] ​​In the embodiment, the metal shell body 1 is usually made of magnesium alloy, aluminum alloy or magnesium-aluminum alloy, and is formed by traditional stamping process to stamp the required product shape. The metal shell body 1 can also be formed by forging, and is not limited to the embodiment. The specific shape is determined according to the actual product requirements, but is usually a sheet structure, and some metal shell bodies 1 have a frame. The metal shell body 1 has a certain thickness and has a thickness direction. One side of the metal shell body 1 along the thickness direction is defined as a processing surface 11, and the other side of the metal shell body 1 along the thickness direction is defined as a back surface 13, and the back surface 13 is distributed in the thickness direction and away from the processing surface 11. It should be noted that the processing surface 11 is limited to a certain surface, and can also be composed of multiple different surfaces according to different embodiments. In the embodiment, the processing surface 11 is designed to have a processing area corresponding to the design requirements of manufacturers and the like at the position of the plastic part structure to be formed. The shape of the injection part 2 corresponds to the shape of the plastic part structure, so that the processing area forms the injection part 2 after injection molding and setting. In other embodiments, the processing surface 11 changes according to different processing areas of different products. In the content defined in the embodiment, the processing area is processed with a plastic structure corresponding to the plastic structure, so that the injection part 2 is combined with the plastic structure during injection molding, and the injection part 2 is tightly fixed on the metal shell body 1 after the injection part 2 is set and is matched with the plastic structure. This process does not damage the metal shell body 1, and reduces the T treatment process during processing, greatly improves the output efficiency, simplifies the processing process, and is more cost-effective and environmentally friendly compared to the expensive T treatment process. The yield is improved to a certain extent.

[0034] In the embodiment, the processing area includes a first processing area 121 located at the edge and corner of the processing surface 11, and a second processing area 122 located inside the edge and corner of the processing surface 11. The first processing area 121 is located at the edge of the metal shell body 1, and is located at the cut-off of the metal shell body 1. The second processing area 122 is located on the plate surface of the metal shell body 1, and is located inside the metal shell body 1 surrounded by the metal shell body 1. Any metal shell body 1 can have both the first processing area 121 and the second processing area 122. In another embodiment, the metal shell body 1 only has the first processing area 121. In another embodiment, the metal shell body 1 only has the second processing area 122.

[0035] Please refer to Figure 1 and Figure 2In the first embodiment, the metal shell body 1 has L-shaped notches at each corner, and a part of the metal shell body 1 is missing. The processing area of the metal shell body 1 includes a first processing area 121, which is L-shaped and located at each corner of the metal shell body. The edges of the missing part of the metal shell body 1 form the first processing area 121. The corresponding injection molding part 2 complements the missing part of the metal shell body 1 in the first processing area 121 to form a complete square or other shape. In another embodiment, the first processing area 121 can be any side of the metal shell body 1 that needs to be complemented by the injection molding part 2. The barb structure 31 is formed on the first processing area 121. Since the first processing area 121 is at the edge of the metal shell body 1, slotting is obviously not suitable in this case. Therefore, the barb structure 31 is integrally stamped and formed with the metal shell body 1.

[0036] In the present embodiment, in order to facilitate the stamping and demolding of the barb structure 31 and the metal shell body 1, and better lock with the injection molding part 2 during injection molding, the barb structure 31 includes a barb part 311 extending from the first processing area 121 towards the side away from the back side 13, and a combination groove 312 recessed from the back side 13 corresponding to the first processing area 121 where the barb part 311 is located. The barb part 311 facilitates locking with the injection molding part 2 to hook the injection molding part 2, making the connection between the injection molding part 2 and the metal shell body 1 more secure. The combination groove 312 further increases the contact surface with the injection molding part 2, improving the bonding force. The barb part 311 is inclined inward relative to the metal shell body 1 along the horizontal distribution direction thereof, i.e., the extension direction of the metal shell body 1 is the horizontal distribution direction thereof. For example, when the metal shell body 1 is rectangular, the length and width directions thereof are the horizontal distribution directions thereof. For example, when the metal shell body 1 is circular, any diameter direction thereof is the horizontal distribution direction thereof. The first processing area 121 is on the inner side of the metal shell body 1 in the horizontal distribution direction thereof, and vice versa, on the outer side of the metal shell body 1 in the horizontal distribution direction thereof. The inclined barb part 311 limits the injection molding part 2 relative to the thickness direction and the horizontal distribution direction of the metal shell body 1 after being combined with the injection molding part 2, so that it cannot be separated. The combination groove 312 is open outward relative to the metal shell body 1 along the horizontal distribution direction thereof, and is open on the side away from the processing surface 11 along the thickness direction of the metal shell body 1, so that the plastic material can wrap around the entire first processing area 121 and the edge of the metal shell body 1 during injection molding using a mold. The combination groove 312 not only combines well with the injection molding part 2, but also can be demolded along the thickness direction of the metal shell body 1. The stamping and forming method is not only convenient to produce, but also has sufficient strength to support the injection molding part 2.

[0037] In the embodiment, the injection molding part 2 is adapted to the barb structure 31 and complements the missing part of the metal shell body 1, and the thickness of the injection molding part 2 is consistent with the thickness of the metal shell body 1, so that the metal shell body 1 forms a complete metal shell and can be used as a metal part of an electronic device such as a notebook computer metal shell. The part of the injection molding part 2 contacting the first processing area 121 has a first bonding part 21 wrapped around the barb part 311 and the outer side of the first processing area 121, and a second bonding part 22 passing through the bonding groove 312. The second bonding part 22 is flush with the back side 13 to exactly fill the entire bonding groove 312 and ensure the flatness of the entire back side 13 of the metal shell body 1. The inner side of the first bonding part 21 and the second bonding part 22 surrounds a groove body consistent with the shape of the barb structure 31, so that the entire barb structure 31 is wrapped inside, and the barb structure 31 is combined with the dovetail to be encapsulated, so as to have sufficient bonding force and ensure firmness.

[0038] Please refer to Figures 3 to 8 In the second embodiment, the metal shell body 1 has a second processing area 122 formed thereon, the second processing area 122 is distributed at various positions of the processing surface 11, and the specific structure and position of the injection molding part 2 are designed according to the actual electronic device and protrude outward from the processing surface 11. In order to better combine the injection molding part 2 with the second processing area 122 and simplify the injection molding operation, the injection molding structure includes a hook groove structure 32 formed on the second processing area 122, and the thickness of the metal shell body 1 is fixed. For this purpose, the hook groove structure 32 includes a groove 321 recessed on the second processing area 122, the two side walls of the groove 321 are inclined away from the side of the processing surface 11, so that the cross section of the groove 321 is trapezoidal, the groove bottom of the groove 321 is widened relative to the groove opening, and the inner folding angle 3211 is formed on both sides of the groove bottom of the groove 321. The hook part 3212 is formed between the side wall of the groove 321 and the processing surface 11. The inner folding angle 3211 is formed by the groove bottom surface and the side wall of the groove 321, and the hook part 3212 is formed by the side wall and the processing surface 11. When the plastic material is buckled on the metal shell body 1 using the mold and liquid plastic material is injected thereinto, the plastic material gradually fills the groove 321 and protrudes outward until the injection molding part 2 is formed. The injection molding part 2 after forming abuts against the processing surface 11 and has a third bonding part 23 adapted to the groove 321 to be dovetailed combined in the groove 321. The inner folding angle 3211 allows the plastic material to fill the inside during injection, and the hook part 3212 limits the injection molding part 2 after forming to be firmly fixed on the metal shell body 1.

[0039] Please refer to Figures 9 to 12In the third embodiment, the injection molding part 2 on some metal shells needs to penetrate the metal shell body 1, in which case, a second machining area 122 is also formed on the metal shell body 1, and a plurality of hook groove structures 32 are spaced apart on the second machining area 122 in the third embodiment compared with the second embodiment, so that the injection molding part 2 is connected to the metal shell body 1 at multiple points after being formed, which can firmly connect the injection molding part 2 to the metal shell body 1 while ensuring the design requirements. The hook groove structure 32 can be circular or other shapes. The hook groove structure 32 is also a groove 321 formed at a selected point on the second machining area 122 of the machining surface 11, and the difference from the second embodiment is that the groove 321 is communicated to the back side 13 away from the machining surface 11 to penetrate the metal shell body 1. The groove 321 is also formed with an inner corner 3211 and a hook portion 3212. The side groove wall is machined with a first arm segment 3213 close to the machining surface 11 and a second arm segment 3214 away from the machining surface 11, and the second arm segment 3214 away from the machining surface 11 is inclined away from the machining surface 11. The inner corner 3211 is formed by the side of the plate away from the machining surface 11 and the second arm segment 3214, and the hook portion 3212 is formed by the first arm segment 3213, the second arm segment 3214 and the machining surface 11. The injection molding part 2 is adapted to the groove 321 to form a third connecting part 23 to be connected with the groove 321. In this way, compared with the second embodiment, the discontinuous distribution of the plurality of grooves 321 increases the size of the groove opening of the groove 321 when the groove 321 penetrates the metal shell body 1, avoiding the formation of a sharp hook portion 3212 to reduce the strength of the third connecting part 23 and the diameter of the injection molding part 2 after forming.

[0040] Compared with the prior art, the metal shell for electronic equipment of the utility model adds a molding structure, so that the injection molding part 2 and the metal shell body 1 no longer use T processing technology in machining, and the T processing technology limits the use of materials of the injection molding part 2, and the structure of the embodiment no longer limits it, realizes product diversification and economy; compared with the expensive cost and yield of T processing, the utility model improves the output efficiency, reduces the process flow, improves the product yield to a certain extent, and greatly reduces the cost.

Claims

1. A metal case for an electronic device, comprising a metal case body and an injection-molded portion, characterized by: The metal shell body has a processing surface, a processing area is formed on the processing surface corresponding to the profile of the injection molding part, and a plastic structure is formed on the processing area.

2. The metal case for an electronic device according to claim 1, wherein: The processing area includes a first processing area at the edge and corner of the processing surface, and the plastic structure includes a barb structure formed on the first processing area.

3. The metal case for an electronic device according to claim 2, wherein: The barb structure is integrally stamped and formed with the metal shell body.

4. The metal case for an electronic device according to claim 2 or 3, wherein: The side of the metal shell body away from the processing surface is a back side, and the barb structure includes a barb part extending from the first processing area away from the back side.

5. The metal case for an electronic device according to claim 4, wherein: The barb part is inclined inward relative to the metal shell body along the horizontal distribution direction thereof.

6. The metal case for an electronic device according to claim 5, wherein: The barb structure further includes a combination groove recessed from the first processing area corresponding to the barb part on the back side, and the combination groove is open outward relative to the metal shell body along the horizontal distribution direction thereof.

7. The metal case for an electronic device according to claim 6, wherein: The injection molding part has a first combination part wrapped on the outside of the barb part and the first processing area, and a second combination part arranged in the combination groove, and the second combination part is flush with the back side.

8. The metal case for an electronic device according to claim 1 or 2, wherein: The processing area includes a second processing area at the inside part of the edge and corner of the processing surface, and the plastic structure includes a hook groove structure formed on the second processing area.

9. The metal case for an electronic device according to claim 8, wherein: The hook groove structure includes a groove recessed on the second processing area, and the two side walls of the groove are inclined away from the side of the processing surface, so that the groove bottom is widened relative to the groove opening, and the inside folding angle is formed on both sides of the groove bottom, and the two side walls of the groove form a barb part between the side of the groove opening and the processing surface.

10. The metal case for an electronic device according to claim 9, wherein: The injection molding part is arranged on the processing surface and has a third combination part adapted to the groove to be combined in the groove.

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