Shell and electronic equipment

Abstract

The utility model discloses a shell, which comprises a metal part and a plastic part, the metal part is provided with a first combination part, the first combination part comprises a plurality of first grooves and a plurality of second grooves, the plurality of first grooves and the plurality of second grooves are respectively arranged on two opposite sides of the thickness direction of the metal part, the first groove and the second groove are bent and extend along the length direction of the metal part; the plastic part is combined with the metal part through injection molding, the plastic part is provided with a second combination part formed through injection molding, and the second combination part is matched with the first combination part; according to the shell provided by the utility model, the bonding strength of the metal part and the plastic part is high. The utility model also provides an electronic device.

Description

Technical Field

[0001] The utility model relates to a shell and electronic equipment, belonging to the technical field of electronic products. Background Art

[0002] In some electronic devices, the housing is usually made of metal material, but using all metal materials will result in signal shielding, which requires partial injection molding to combine metal materials with plastic materials.

[0003] In the bonding structure of the related art, filling grooves are set at intervals in the metal part that penetrate the thickness of the metal part for plastic to be filled and bonded. However, the material difference will cause the plastic to partially shrink during the baking stage. The aforementioned structure causes obvious shrinkage due to the thickness of the plastic bonding part penetrating the metal part. In addition, the bonding strength between the metal part and the plastic part is not high, and cracks are easily formed between the metal part and the plastic part. Utility Model Content

[0004] The purpose of the utility model is to provide a housing and an electronic device which can improve the shrinkage of the plastic part and has high bonding strength between the metal part and the plastic part.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A housing, comprising:

[0007] Metal parts and plastic parts;

[0008] The metal part is provided with a first coupling portion, the first coupling portion including a plurality of first grooves and a plurality of second grooves, the plurality of first grooves and the plurality of second grooves are respectively provided on opposite sides of the thickness direction of the metal part, and the first grooves and the second grooves are both curved and extended along the length direction of the metal part;

[0009] The plastic part is combined with the metal part by injection molding. The plastic part has a second combining portion formed by injection molding. The second combining portion is adapted to the first combining portion.

[0010] As a further improved technical solution of the present invention, the first groove and the second groove both include S-shaped grooves or M-shaped grooves.

[0011] The S-shaped groove or the M-shaped groove has a first opening and a second opening, and both the first opening and the second opening face the plastic part.

[0012] As a further improved technical scheme of the utility model, the first groove and the second groove all comprise the S-shaped groove, the S-shaped groove comprises a first arc-shaped groove, a second arc-shaped groove and a third arc-shaped groove, the first opening is communicated with the first arc-shaped groove and the second arc-shaped groove, the second opening is communicated with the third arc-shaped groove, and the third arc-shaped groove is communicated with the second arc-shaped groove.

[0013] As a further improved technical scheme of the utility model, along the length direction of the metal part, a plurality of the first grooves are arranged at equal intervals, and a plurality of the second grooves are arranged at equal intervals.

[0014] As a further improved technical scheme of the utility model, along the length direction of the metal part, the first grooves and the second grooves are alternately and equally arranged.

[0015] As a further improved technical scheme of the utility model, along the length direction of the metal part, the length of the first groove is S1, the length of the second groove is S2, there is a spacing D between the first groove and the second groove, and S1=S2, 0

[0016] As a further improved technical scheme of the utility model, the metal part is provided with a tongue part, and the plastic part has a groove matched with the tongue part.

[0017] As a further improved technical scheme of the utility model, the tongue part comprises a first surface and a second surface, the first surface and the second surface are located on opposite sides in the thickness direction of the tongue part, the groove bottom surface of the first groove is coplanar with the first surface, and the groove bottom surface of the second groove is coplanar with the second surface.

[0018] As a further improved technical scheme of the utility model, the metal part comprises a first main body area and a first bonding area, the first groove and the second groove are arranged in the first bonding area, and the thickness of the first bonding area is greater than the thickness of the first main body area.

[0019] To achieve the above object, the utility model also adopts the following technical scheme: an electronic device comprises a shell.

[0020] Compared with the prior art, the metal part is provided with a first groove and a second groove, the first groove and the second groove are arranged on opposite sides in the thickness direction of the metal part, the first groove and the second groove jointly form a first combining part, the plastic part forms a second combining part through injection molding, the second combining part is matched with the first combining part, and the first groove and the second groove are both arranged in a curved mode, on the one hand, the contact area of the metal part and the plastic part can be increased, and the combining strength of the metal part and the plastic part can be improved; on the other hand, the metal part and the plastic part are not prone to cracking or damage under the condition that the shell is subjected to tension and shearing force; the first groove and the second groove are arranged on opposite sides in the thickness direction of the metal part, the problem of shrinkage of the plastic after baking is improved, thereby improving the yield and reducing the manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective view of the shell of the utility model;

[0022] Figure 2 is Figure 1 the exploded view of the shell shown in the figure;

[0023] Figure 3 is Figure 2 the enlarged view of A1 region in the figure;

[0024] Figure 4 is Figure 1 the exploded view of the shell shown in the figure from the top angle;

[0025] Figure 5 is Figure 4 the enlarged view of A2 region in the figure;

[0026] Figure 6 is Figure 4 the structural view of the metal part in the figure;

[0027] Figure 7 is the sectional view along the line B-B in the figure; Figure 6

[0028] Figure 8 is Figure 7 the enlarged view of A3 region in the figure;

[0029] Figure 9 is Figure 1 the side view of the shell shown in the figure;

[0030] Figure 10 is Figure 1 the perspective view of the shell from another angle shown in the figure;

[0031] Figure 11 is Figure 10 the exploded view of the shell shown in the figure;

[0032] ​Figure 12 is Figure 11 A4 region amplification diagram. DETAILED DESCRIPTION

[0033] The exemplary embodiments of this application will be described in detail below with reference to the attached drawings. If there are several embodiments, the features of the embodiments can be combined with each other when there is no conflict. When the description refers to the drawings, the same numbers on different drawings represent the same or similar elements unless otherwise stated. The description in the following exemplary embodiments does not represent all embodiments consistent with this application; rather, they are merely examples of devices, products and / or methods consistent with some aspects of this application as recited in the claims of this application.

[0034] The terms used in this application are merely for the purpose of describing the embodiments and are not intended to limit the scope of protection of the application. The singular forms "a", "an" and "the" as used in the specification and claims of this application are intended to include plural forms unless the context clearly indicates otherwise.

[0035] It should be understood that the use of terms such as "first", "second" and similar terms in the specification and claims of this application do not indicate any order, number or importance, but are merely used to distinguish the features of the application. Similarly, "one" or "a" and similar terms do not indicate a quantity limitation, but indicate the presence of at least one. Unless otherwise indicated, the terms "before", "after", "upper", "lower" and similar terms appearing in this application are for the convenience of description only and are not limited to a particular position or a spatial orientation. The terms "include" or "contain" and similar terms are open-ended expressions, which means that the elements appearing before "include" or "contain" cover the elements appearing after "include" or "contain" and their equivalents, which does not exclude the possibility that the elements appearing before "include" or "contain" can also contain other elements. If "several" appears in this application, it means two or more.

[0036] Please refer to Figures 1 to 12 The utility model discloses a kind of shells, including metal part 10 and plastic part 20, plastic part 20 is combined with metal part 10 by injection molding, and plastic part 20 is shaped in the width direction of metal part 10 one side.

[0037] Referring to Figure 2 , Figure 6 and Figure 11The metal part 10 is provided with a first joint portion 3, which includes a plurality of first grooves 31 and a plurality of second grooves 32. The plurality of first grooves 31 and the plurality of second grooves 32 are respectively provided on opposite sides of the metal part 10 in the thickness direction. The first grooves 31 and the second grooves 32 are both bent and extended along the length direction L of the metal part 10. The plastic part 20 has a second joint portion 4 formed by injection molding, and the second joint portion 4 is adapted to the first joint portion 3. The shell provided by the present invention is provided with molding grooves on both sides of the thickness direction of the metal part 10. The molding grooves are bent. On the one hand, it can increase the contact area between the metal part 10 and the plastic part 20 and improve the bonding strength between the metal part 10 and the plastic part 20; on the other hand, when the shell is subjected to tension and shear force, the metal part 10 and the plastic part 20 are not easily cracked or damaged. It should be explained that tension refers to the force along the width direction or length direction of the metal part 10, and shear force refers to the force along the thickness direction of the metal part 10. The first groove 31 and the second groove 32 are disposed on opposite sides of the metal portion 10 in the thickness direction, which can also improve the shrinkage problem of the plastic portion 20 after baking, thereby improving the yield and reducing the manufacturing cost.

[0038] In some embodiments, see Figure 3 and Figure 12 The first groove 31 and the second groove 32 both comprise S-shaped grooves, that is, the first groove 31 and the second groove 32 are both S-shaped. The S-shaped groove has a first opening 301 and a second opening 302, both of which face the plastic portion 20. The first opening 301 and the second opening 302 are both used to introduce plastic melt. By providing two openings, after the plastic portion 20 is molded, the second joint 4 forms two connection points with the plastic portion 20, improving the connection strength of the second joint 4. The two openings facilitate rapid flow of plastic to fill the first groove 31 / second groove 32 during injection molding. This prevents the second joint 4 from being partially molded due to the plastic melt entering the metal portion 10 and failing to fill the first groove 31 / second groove 32 due to rapid cooling, and also shortens the injection molding time. In other possible embodiments, the first groove 31 and the second groove 32 both comprise M-shaped grooves, that is, the first groove 31 and the second groove 32 are both M-shaped, with the two openings located at the left / right vertex and the middle vertex of the bottom of the M shape, respectively. In other improved embodiments, the first groove 31 and the second groove 32 may also include a W-shaped groove or an N-shaped groove, and the two openings of the W-shaped groove are located at the two vertices of the W-shaped bottom. The same is true for the N-shaped groove, which will not be repeated.

[0039] See also Figure 5The S-shaped groove includes a first arcuate groove 311, a second arcuate groove 312, and a third arcuate groove 313. The first opening 301 is connected to both the first arcuate groove 311 and the second arcuate groove 312. The second opening 302 is connected to the third arcuate groove 313, and the third arcuate groove 313 is connected to the second arcuate groove 312. By providing the first arcuate groove 311, the second arcuate groove 312, and the third arcuate groove 313 with different bending and extending directions, the embedding force between the second connecting portion 4 and the first connecting portion 3 is increased, which is conducive to improving the bonding strength between the two.

[0040] The first groove 31 and the second groove 32 are staggered along the thickness direction of the metal part 10. This arrangement can minimize the overlapping portion of the first groove 31 and the second groove 32 and reduce the impact on the strength of the metal part 10 caused by the thinning of the thickness.

[0041] Along the length direction L of the metal part 10, a plurality of first grooves 31 are arranged at equal intervals, and a plurality of second grooves 32 are arranged at equal intervals. Figure 7 and Figure 8 Along the length direction L of the metal portion 10, the first grooves 31 and the second grooves 32 are arranged alternately and at equal intervals. That is, along the thickness direction of the metal portion 10, the first grooves 31 and the second grooves 32 do not overlap. The thickness (structural strength) of the metal portion 10 at the location where the first grooves 31 are provided is not affected by the second grooves 32, and the thickness (structural strength) of the metal portion 10 at the location where the second grooves 32 are provided is not affected by the first grooves 31. In other possible embodiments, the first grooves 31 and the second grooves 32 may partially overlap along the thickness direction of the metal portion 10.

[0042] In this embodiment, see Figure 7 and Figure 8 Along the length L of the metal portion 10, the length of the first groove 31 is S1, and the length of the second groove 32 is S2, where S1 = S2. That is, the length of the first groove 31 is equal to the length of the second groove 32. Furthermore, the depth of the first groove 31 is equal to the depth of the second groove 32. A spacing D is defined between the first groove 31 and the second groove 32, with 0 < D ≤ 2 / 3 S1. By limiting the spacing D to this range, the metal portion 10 maintains a high structural strength.

[0043] See also Figure 3 and Figure 12 The metal portion 10 is provided with a tongue 5 that protrudes outward from a first end surface 21 of the metal portion 10, and the plastic portion 20 has a groove 6 that mates with the tongue 5. The engagement of the tongue 5 and the groove 6 further increases the contact area between the plastic portion 20 and the metal portion 10, thereby enhancing the bonding strength between the two. Furthermore, even when the housing is subjected to a force acting in the thickness direction, the metal portion 10 and the plastic portion 20 are not easily separated.

[0044] In this embodiment, referring to Figure 3 and Figure 12 , the tongue 5 includes a first surface 51 and a second surface 52, the first surface 51 and the second surface 52 are located on opposite sides of the thickness direction of the tongue 5, the groove bottom surface of the first groove 31 is coplanar with the first surface 51, and the groove bottom surface of the second groove 32 is coplanar with the second surface 52, so that the thickness of the tongue 5 is as large as possible, and the strength of the tongue 5 is relatively high.

[0045] Referring to Figure 2 , the metal part 10 includes a first main body area 1 and a first bonding area 2, the first bonding area 2 includes a first end surface 21, the first groove 31 and the second groove 32 are both arranged in the first bonding area 2, and the thickness of the first bonding area 2 is greater than the thickness of the first main body area 1. By increasing the thickness of the first bonding area 2, the structural strength of the first bonding area 2 is improved. Correspondingly, the thickness of the tongue 5 can be appropriately increased, and the depth of the first groove 31 and the second groove 32 can be appropriately increased, so that the bonding strength of the plastic part 20 and the metal part 10 can be improved.

[0046] Referring to Figure 9 , the thickness of the first main body area 1 is H1, the thickness of the first bonding area 2 is H2, and H1≤1 / 2H2.

[0047] Continuing to refer to Figure 9 , the first main body area 1 includes a first top surface 1a and a first bottom surface 1b located on opposite sides of the thickness direction thereof, and the first bonding area 2 includes a second top surface 2a and a second bottom surface 2b located on opposite sides of the thickness direction thereof, wherein the first groove 31 is inwardly recessed from the second top surface 2a, and the second groove 32 is inwardly recessed from the second bottom surface 2b. The first bonding area 2 further includes a first inclined surface 2c connecting the first bottom surface 1b and the second bottom surface 2b.

[0048] Referring to Figure 11 , the second bonding part 4 has a first sub-bonding part 41 formed in the first groove 31 and a second sub-bonding part 42 formed in the second groove 32, and the first sub-bonding part 41 and the second sub-bonding part 42 are both S-shaped.

[0049] Referring to Figure 2 and Figure 4 , the plastic part 20 includes a second main body area 7 and a second bonding area 8, the second bonding area 8 includes a second end surface 81, and the first sub-bonding part 41 and the second sub-bonding part 42 are both connected to the second end surface 81. Among them, the thickness of the second bonding area 8 is greater than the thickness of the second main body area 7, and by increasing the thickness of the second bonding area 8, the structural strength of the second bonding area 8 is improved.

[0050] Referring to Figure 9The second main body area 7 comprises a third top surface 7a and a third bottom surface 7b located on opposite sides in the thickness direction of the second main body area 7, and the second bonding area 8 comprises a fourth top surface 8a and a fourth bottom surface 8b located on opposite sides in the thickness direction of the second bonding area 8. The second bonding area 8 further comprises a second inclined surface 8c connecting the third bottom surface 7b and the fourth bottom surface 8b. The first top surface 1a, the second top surface 2a, the third top surface 7a and the fourth top surface 8a are coplanar, and the first top surface 1a, the second top surface 2a, the third top surface 7a and the fourth top surface 8a belong to the appearance surface of the shell. The first bottom surface 1b, the second bottom surface 2b, the first inclined surface 2c, the third bottom surface 7b, the fourth bottom surface 8b and the second inclined surface 8c belong to the structural surface of the shell. The appearance surface of the shell is the surface exposed to the outside, so the appearance surface is relatively flat.

[0051] The utility model discloses still a kind of electronic equipment, including above-mentioned shell. Electronic equipment can be notebook computer, tablet computer etc.

[0052] The above embodiments are only used to illustrate the present utility model and not to limit the technical solutions described in the present utility model. The understanding of the present utility model should be based on the technical personnel in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical personnel in the art can still modify or equivalently replace the present utility model. All technical solutions and improvements that do not deviate from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. A housing characterized by, The utility model relates to a metal-plastic combined part, comprising: a metal part (10) and a plastic part (20); the metal part (10) is provided with a first bonding portion (3), the first bonding portion (3) includes a plurality of first grooves (31) and a plurality of second grooves (32), a plurality of the first grooves (31) and a plurality of the second grooves (32) are arranged on the opposite sides of the thickness direction of the metal part (10) respectively, and the first grooves (31) and the second grooves (32) are curved and extended along the length direction (L) of the metal part (10); the plastic part (20) is combined with the metal part (10) by injection molding, and the plastic part (20) has a second bonding portion (4) formed by injection molding, and the second bonding portion (4) is matched with the first bonding portion (3).

2. The housing of claim 1, wherein the first grooves (31) and the second grooves (32) all include S-shaped grooves or M-shaped grooves, the S-shaped grooves or the M-shaped grooves have a first opening (301) and a second opening (302), and the first opening (301) and the second opening (302) are both directed to the plastic part (20).

3. The housing of claim 2, wherein, the first grooves (31) and the second grooves (32) all include the S-shaped grooves, the S-shaped grooves include a first arc-shaped groove (311), a second arc-shaped groove (312) and a third arc-shaped groove (313), the first opening (301) is communicated with the first arc-shaped groove (311) and the second arc-shaped groove (312), the second opening (302) is communicated with the third arc-shaped groove (313), and the third arc-shaped groove (313) is communicated with the second arc-shaped groove (312).

4. The housing of claim 1, wherein Along the length direction (L) of the metal part (10), a plurality of the first grooves (31) are arranged at equal intervals, and a plurality of the second grooves (32) are arranged at equal intervals; along the thickness direction of the metal part (10), the first grooves (31) and the second grooves (32) are arranged in a staggered manner.

5. The housing of claim 4, wherein, Along the length direction (L) of the metal part (10), the first grooves (31) and the second grooves (32) are alternately and equally arranged.

6. The housing of claim 5, wherein, Along the length direction (L) of the metal part (10), the length of the first grooves (31) is S1, the length of the second grooves (32) is S2, the first grooves (31) and the second grooves (32) have a spacing D therebetween, and S1=S2, 0 7. The housing of claim 1, wherein the metal part (10) is provided with a tongue portion (5), and the plastic part (20) has a groove (6) matched with the tongue portion (5).

8. The housing of claim 7, wherein, the tongue portion (5) includes a first surface (51) and a second surface (52), the first surface (51) and the second surface (52) are located on the opposite sides of the thickness direction of the tongue portion (5), the groove bottom surface of the first grooves (31) is coplanar with the first surface (51), and the groove bottom surface of the second grooves (32) is coplanar with the second surface (52).

9. The case of claim 1, wherein, The metal part (10) comprises a first main zone (1) and a first joining zone (2), the first slot (31) and the second slot (32) being each provided in the first joining zone (2), the thickness of the first joining zone (2) being greater than the thickness of the first main zone (1).

10. An electronic device, comprising: A housing comprising a metal part according to any one of claims 1 to 9.

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