Mobile device protection shell group and main frame and assembly thereof

Abstract

The invention provides a mobile device protective shell set and a main frame and an assembling piece thereof, the mobile device protective shell set is suitable for being matched with a mobile device, the mobile device protective shell set comprises the main frame and the assembling piece, the main frame is provided with an inner ring surface, a rear flange and at least one positioning part, the inner ring surface is encircled to define a containing chamber, and the rear flange is arranged in the containing chamber. The containing chamber is suitable for containing the moving device, the rear flange protrudes towards the containing chamber from the inner ring face, the rear flange is provided with a device abutting face and is suitable for the back side of the moving device to abut against, and the positioning part is arranged on the device abutting face; the connecting piece is provided with a base portion and at least one clamping portion, the clamping portion is arranged on the local outer periphery of the base portion, the clamping portion is suitable for being combined with the positioning portion, and the device abutting face and the clamping portion can abut against the back side of the mobile device.

Description

Technical Field

[0001] The invention relates to a peripheral accessory of a mobile device, in particular to a mobile device protective shell assembly and a main frame and an assembly component thereof. Background Art

[0002] As modern people use mobile devices more frequently, in order to prevent damage or malfunction of mobile devices caused by accidental drops, the market is flooded with protective cases for common mobile devices such as mobile phones, tablets, smart watches or wireless charging boxes for headphones.

[0003] For example, an existing protective cover set includes a main frame, a decorative strip, and a back plate; the inner ring surface of the main frame is provided with an annular positioning portion, and the user can choose to combine and position the circumferential edge of the decorative strip or the back plate on the annular positioning portion according to needs. In this way, when the mobile device is assembled into the protective cover set, the back side of the mobile device can be firmly against the decorative strip or the back plate, and there will be no loose fit and shaking feeling between the mobile device and the protective cover set. Summary of the invention

[0004] However, since the back side of the mobile device is against the decorative strip or the back plate, when the user does not install the decorative strip or the back plate, the mobile device will not be able to be firmly assembled in the main frame, and will not only feel shaky, but may even risk falling out of the main frame.

[0005] In view of the above-mentioned defects of the prior art, the applicant feels that it is not perfect, so he has devoted all his energy to research and overcome it, and has successfully developed a mobile device protective case assembly, including a main frame and an assembly member, and whether the main frame is assembled with the assembly member or not, the mobile device can be stably assembled without shaking.

[0006] To achieve the above-mentioned purpose or other purposes, the present invention provides a mobile device protective shell group suitable for cooperating with a mobile device, the mobile device protective shell group includes a main frame and an assembly component, the main frame has an inner annular surface, a rear flange and at least one positioning portion, the inner annular surface is surrounded to define a chamber, the chamber is suitable for accommodating the mobile device, the rear flange protrudes from the inner annular surface toward the chamber, the rear flange has a device abutment surface suitable for the back side of the mobile device to abut, and the positioning portion is arranged on the device abutment surface; the assembly component has a base and at least one latch portion, the latch portion is arranged on a partial outer periphery of the base, the latch portion is suitable for combining with the positioning portion, and the device abutment surface and the latch portion can abut against the back side of the mobile device.

[0007] In the above-mentioned mobile device protective shell group, the display screen of the mobile device is located at the front, the back side of the mobile device is located at the rear, the device abutment surface is the forward surface of the rear flange, and the device abutment surface and the forward surface of the latch portion can be appropriately abutted against the back side of the mobile device.

[0008] In the above-mentioned mobile device protective shell group, the positioning portion can have a groove, a hook portion and a notch, the groove is formed by the device abutment surface being recessed backward, the hook portion is located between the groove and the receiving chamber, the free end height of the hook portion is lower than the position of the device abutment surface where the positioning portion is not provided to form the notch, and the latch portion forms a hook to penetrate into the notch and be embedded in the groove.

[0009] In the above mobile device protective case assembly, the inner annular surface is preferably substantially smoothly connected to the forward-facing surface of the latch portion.

[0010] In the above-mentioned mobile device protective case assembly, the outer periphery of the base portion where the latch portion is not provided is preferably substantially smoothly connected to the device abutting surface.

[0011] In the above mobile device protective case set, the main frame has a front flange opposite to the rear flange, and the protrusion of the rear flange toward the accommodation chamber may be greater than the protrusion of the front flange toward the accommodation chamber.

[0012] In the above mobile device protective shell assembly, the assembly member may have multiple latching parts, the upper and lower edges of the base may each have a latching part, and the left and right edges of the base may each have multiple latching parts arranged at equal intervals.

[0013] The present invention further provides a main frame of a mobile device protective shell assembly, which is suitable for assembling a mobile device, and the main frame has: an inner annular surface, which is surrounded to define a chamber, and the chamber is suitable for accommodating the mobile device; a rear flange, which protrudes from the inner annular surface toward the chamber, and the rear flange has a device abutment surface, which is suitable for the back side of the mobile device to abut; and at least one positioning portion, which is arranged on the device abutment surface.

[0014] In the above-mentioned main frame, the main frame is suitable for cooperating with the assembly component for assembling the mobile device, the periphery of the assembly component may have at least one latching portion, and the positioning portion of the main frame is suitable for being engaged with the latching portion of the assembly component.

[0015] In the above main frame, the display screen of the mobile device is located at the front, the back side of the mobile device is located at the rear, and the inner annular surface is preferably substantially smoothly connected to the front surface of the latch portion.

[0016] In the above-mentioned main frame, the display screen of the mobile device is located at the front, and the back side of the mobile device is located at the rear. The positioning portion can have a groove, a hook and a notch. The groove is formed by the device abutment surface being recessed toward the rear. The hook is located between the groove and the receiving chamber. The free end height of the hook is lower than the position where the positioning portion is not provided on the device abutment surface to form the notch. The notch is suitable for the latch portion that forms the hook to penetrate into the notch and be embedded in the groove.

[0017] In the above-mentioned main frame, the main frame has a front flange opposite to the rear flange, and the protrusion of the rear flange toward the accommodation chamber may be greater than the protrusion of the front flange toward the accommodation chamber.

[0018] In addition, the present invention provides a connecting piece of a mobile device protective shell assembly, which is suitable for cooperating with a main frame for assembling a mobile device; the main frame is surrounded to define a chamber suitable for accommodating the mobile device, the main frame has a rear flange and at least one positioning portion, the rear flange has a device abutment surface, which is suitable for the back side of the mobile device to abut, and the positioning portion is arranged on the device abutment surface; the connecting piece has a base and at least one latch portion, the latch portion is arranged on the outer periphery of the base, the latch portion is suitable for combining with the positioning portion of the main frame, and the device abutment surface and the latch portion can abut against the back side of the mobile device.

[0019] In the assembly of the above-mentioned mobile device protective shell assembly, the display screen of the mobile device is located at the front, the back side of the mobile device is located at the rear, the device abutment surface is the forward surface of the rear flange, and the device abutment surface and the forward surface of the latch portion can be adapted to abut the back side of the mobile device.

[0020] In the above-mentioned assembly component of the mobile device protective shell assembly, the outer periphery of the base portion where the latch portion is not provided can be adapted to be substantially smoothly connected to the device abutting surface of the main frame.

[0021] In the assembly component of the mobile device protective shell assembly, the number of the latch parts can be multiple, the upper and lower edges of the base can each be provided with a latch part, and the left and right edges of the base can each be provided with multiple latch parts arranged at equal intervals.

[0022] Accordingly, when using the mobile device protective shell set of the present invention, the assembly component can be assembled and combined with the main frame, so that the device abutting surface and the forward-facing surface of the latch portion abut against the back side of the mobile device; or, the assembly component may not be assembled, and only the device abutting surface abuts against the back side of the mobile device. Therefore, when using the mobile device protective shell set of the present invention, regardless of whether the main frame is assembled with the assembly component, the mobile device can be stably assembled, and the mobile device is not easy to shake in the main frame, so the user can choose whether to install the assembly component according to needs to meet different protection or styling needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a three-dimensional exploded schematic diagram of an embodiment of a mobile device protective cover of the present invention.

[0025] Figure 2 It is a top view schematic diagram of an embodiment of a mobile device protective cover of the present invention.

[0026] Figure 3 is along Figure 2 AA line cross-section diagram.

[0027] Figure 4 is along Figure 2 BB line cross-sectional view, in which the assembly parts are omitted.

[0028] Figure 5 Yes Figure 3 sectional view of the apparatus and is assembled with a moving device.

[0029] Figure 6 Yes Figure 4 , and depicts a cross-sectional view of the assembly parts and the assembled moving device.

[0030] Figure 7 is along Figure 2 CC line profile.

[0031] Figure 8 It is a partial three-dimensional schematic diagram of an embodiment of a mobile device protective cover of the present invention.

[0032] Fig. 9 It is a partial top view schematic diagram of an embodiment of a main frame of the present invention.

[0033] Fig.10 It is a partial three-dimensional schematic diagram of an embodiment of a main frame of the present invention.

[0034] Fig.11 It is a partial cross-sectional schematic diagram of another embodiment of the mobile device protective cover of the present invention.

[0035] Reference numerals

[0036] 1 Main frame

[0037] 11 Inner ring

[0038] 12 Outer ring

[0039] 13 Front flange

[0040] 14 Rear flange

[0041] 141 device abutment surface

[0042] 15 Positioning unit

[0043] 151 Groove

[0044] 152 Hook

[0045] 153 Gap

[0046] 2 Components

[0047] 21 base

[0048] 211 outer periphery

[0049] 22. Clamp

[0050] 221 Surface

[0051] E Mobile Device

[0052] S Room DETAILED DESCRIPTION

[0053] The following will further describe the mobile device protective case assembly and its main frame and assembly components according to the embodiment of the present invention with reference to the accompanying drawings.

[0054] The aforementioned and other technical contents, features and effects of the invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. It is worth mentioning that the quantifiers "one" or "an" used in the components and members described in the present invention are only for convenience of use and to provide the general meaning of the scope of the present invention; in the present invention, it should be interpreted as including one or at least one, and a single concept also includes plural cases, unless it is obvious that it means otherwise.

[0055] The similar terms such as "combination", "assembly" or "assembly" mentioned throughout the present invention mainly include the connection that can be separated without destroying the components, or the connection that makes the components inseparable, which can be selected by those with ordinary knowledge in the field according to the materials of the components to be connected or the assembly requirements.

[0056] In addition, in the following embodiments, the same or similar components will be denoted by the same or similar reference numerals.

[0057] Please refer to Figure 1 , is a preferred embodiment of the mobile device protective shell assembly of the present invention, the mobile device protective shell assembly comprises a main frame 1 and an assembly member 2 that can be assembled with each other. The mobile device protective shell assembly can be mounted on a mobile device (not shown), the mobile device can be, for example but not limited to, a mobile phone, a tablet computer, a smart watch, or a wireless charging box for earphones, etc.; although the drawings of this embodiment are presented with a mobile device protective shell assembly for a mobile phone as an example, the present invention is not limited thereto.

[0058] Among them, taking a non-folding upright mobile phone as an example, the mobile device usually has a display screen, side edges and a back side, the display screen is opposite to the back side, and the side edges can be connected between the display screen and the back side. When the mobile device protective shell assembly is assembled on the mobile device, the main frame 1 can surround and cover the side edges of the mobile device. The present invention can choose to define the direction at a plane orthogonal to the display screen as the Z direction, and the display screen is located as the front direction, and the back side is located as the rear direction. When the user faces the mobile device and operates the touch screen, the left and right directions are defined as the X direction, and the up and down directions are defined as the Y direction when operating the touch screen.

[0059] Please refer to Figures 1 to 6 , the cross section of the main frame 1 in the XY plane of this embodiment can be roughly a hollow rectangle, but it is not limited to this. The main frame 1 has an inner annular surface 11 and an outer annular surface 12, and the inner annular surface 11 is surrounded to define a chamber S suitable for accommodating the mobile device E. The main frame 1 also has a front flange 13 and a rear flange 14 opposite to each other in the Z direction, and the front flange 13 and the rear flange 14 are respectively protruded from the inner annular surface 11 toward the chamber S, so that the cross section of the main frame 1 in the XZ plane can be roughly C-shaped (such as Figure 3 As shown), the side edge of the mobile device E assembled into the chamber S can be limited between the front flange 13 and the rear flange 14 (as shown in FIG. Figure 5 shown).

[0060] In addition, the rear flange 14 has a device abutment surface 141 facing forward, suitable for the back side of the mobile device E to abut (such as Figure 5The main frame 1 further comprises at least one positioning portion 15 disposed on the device abutting surface 141, and the assembly member 2 comprises a base 21 and at least one latch portion 22, wherein the latch portion 22 is disposed on a partial outer periphery of the base 21, and the latch portion 22 is suitable for being combined with the positioning portion 15.

[0061] In this embodiment, when using the mobile device protective case, the user can first assemble the assembly member 2 to the main frame 1, and use the corresponding latch portion 22 and the positioning portion 15 to firmly assemble the assembly member 2 in the main frame 1. Then, the mobile device E is assembled into the housing S through the front flange 13, so that the device abutment surface 141 (such as the rear flange 14) of the rear flange 14 is Figure 5 ) and the forward-facing surface 221 of the latch portion 22 (as shown Figure 6 As shown in the figure, the mobile device E can be abutted against the back side of the mobile device E, so the mobile device E will not shake in the chamber S.

[0062] Alternatively, the user may not assemble the assembly member 2, but directly assemble the mobile device E into the accommodation chamber S through the front flange 13. In this way, even if the latching portion 22 of the assembly member 2 is missing, the back side of the mobile device E can be abutted against the device abutting surface 141 of the rear flange 14, and will not shake in the accommodation chamber S, and can be stopped by the rear flange 14, ensuring that the mobile device E cannot fall out from the rear side of the main frame 1.

[0063] Therefore, when using the mobile device protective case set of this embodiment, regardless of whether the main frame 1 is assembled with the assembly member 2, the mobile device E can be assembled stably, and the mobile device E is not easy to shake in the main frame 1, so the user can choose whether to install the assembly member 2 according to the needs to meet different protection or styling needs. In addition, in the case that the assembly member 2 is damaged or lost, the user can still use the main frame 1 alone to provide protection for the mobile device E, without having to replace the main frame 1 which is still functional, thereby reducing unnecessary waste of resources.

[0064] It is worth noting that the present invention does not limit the shape of the assembly member 2. For example, the assembly member 2 of this embodiment can be a back plate, so the base 21 can be in the form of a plate, and after the assembly member 2 is assembled to the main frame 1, the base 21 can cover all or part of the rear opening of the main frame 1, that is, the base 21 can block the back side of the mobile device E and protect the back side of the mobile device E from being easily damaged. In other embodiments, the assembly member 2 can also be a structure similar to an existing decorative strip, whereby, regardless of whether the main frame 1 is assembled with the assembly member 2, the back side of the mobile device E can have a larger exposed area, so that the assembly member 2 can be combined with the main frame 1 to produce more diverse decorative effects.

[0065] In addition, please refer to Figure 1 and Figure 8 In one embodiment of the present invention, the rear flange 14 may be composed of four sections. The four sections of the present embodiment may include two long sections and two short sections. The length of the long section is greater than the length of the short section to meet the current form of most mobile devices such as mobile phones or tablet computers. In other embodiments, the number of long sections and / or short sections is not limited, or the sections may be of equal length, which is not limited by the present invention. In addition, the present embodiment may choose to set at least one positioning portion 15 on each of the four sections, so that when the assembly 2 is assembled to the main frame 1, the assembly 2 can be firmly combined with the main frame 1 in the X-axis direction and the Y-axis direction to prevent the assembly 2 from loosening from the main frame 1. The present invention also includes a form in which at least one of the four sections is provided with the positioning portion 15.

[0066] Please refer to Figure 7 and Figure 8 In one embodiment of the present invention, the device abutment surface 141 of the rear flange 14 can be flush with the forward surface 221 of the latch portion 22; that is, the device abutment surface 141 and the surface 221 substantially do not form a step difference in the Z direction. In this way, when the back side of the mobile device is basically formed into a plane, the mobile device protective shell assembly of this embodiment can make the device abutment surface 141 of the rear flange 14 and the forward surface 221 of the latch portion 22 be able to be jointly supported on different parts of the back side of the mobile device when the main frame 1 is assembled with the assembly component 2; in this embodiment, the different parts of the back side of the mobile device refer to the continuous edge of the outer periphery of the back side of the mobile device. In other embodiments, as long as the device abutment surface 141 and the surface 221 can jointly support the back side of the mobile device, the present invention does not limit the shape of the back side of the mobile device.

[0067] Please refer to Figure 6In addition to the above embodiments, in one embodiment of the present invention, the inner annular surface 11 is preferably substantially smoothly connected to the forward-facing surface 221 of the latch portion 22. In this way, when the mobile device protective shell assembly of this embodiment is assembled on the mobile device E, the inner annular surface 11 of the main frame 1 can surround and cover the side edge of the mobile device E, and the junction between the inner annular surface 11 and the surface 221 can also smoothly transition to the back side of the mobile device E to fit the side edge and back side of the mobile device E, which can improve the coverage and combination stability of the mobile device protective shell assembly to the mobile device E.

[0068] Similarly, see Figure 3 and Figure 5 In one embodiment of the present invention, the outer periphery 211 of the base 21 is preferably substantially smoothly connected to the device abutting surface 141 at a location where the latch portion 22 is not provided; that is, the outer periphery 211 and the device abutting surface 141 substantially have no step difference in the Z direction. In this way, the mobile device protection shell assembly of this embodiment can also abut against the back side of the mobile device E at the junction of the device abutting surface 141 and the outer periphery 211 of the base 21, thereby improving the coverage and combination stability of the mobile device protection shell assembly to the mobile device E.

[0069] Please refer to Figure 3 In addition to the above embodiments, in one embodiment of the present invention, on the XY plane, the protrusion of the rear flange 14 toward the chamber S may be greater than the protrusion of the front flange 13 toward the chamber S; that is, please refer to Fig. 9 When the main frame 1 is viewed from above, the rear flange 14 can be seen. In this way, the main frame 1 of this embodiment can be formed into a protective structure to prevent the mobile device from escaping from the rear side by a simple structure, and the rear flange 14 can also be used to set the positioning portion 15, which has the effect of improving the manufacturing convenience of the main frame 1 and the assembly convenience of the main frame 1 and the assembly member 2.

[0070] Please refer to Figure 1 , Figure 4 , Figure 7 and Fig.10 The shape of the positioning portion 15 can match the shape of the latch portion 22, so that the latch portion 22 can be detachably combined with the corresponding positioning portion 15. For example, Figure 4As shown, in one embodiment of the present invention, the positioning portion 15 may have a groove 151, a hook portion 152 and a notch 153. The groove 151 is formed by the device abutment surface 141 being recessed backward on the Z axis, and the hook portion 152 is located between the groove 151 and the chamber S, and the hook portion 152 may protrude forward from the bottom end of the groove 151. The height of the free end of the hook portion 152 on the Z axis is lower than the position of the device abutment surface 141 where the positioning portion 15 is not provided, thereby forming the notch 153. Figure 6 As shown, the latch portion 22 can form a hook to penetrate the notch 153 and be embedded in the groove 151. In this way, the main frame 1 and the assembly member 2 can be combined with a structure that is easy to form and easy to disassemble, which has the effect of improving manufacturing convenience and assembly convenience and efficiency. In other embodiments, the positioning portion 15 and the latch portion 22 can also form other different types of corresponding structures for mutual positioning; for example, please refer to Fig.11 The positioning portion 15 may be formed in a stepped shape, and the latch portion 22 may be formed in a corresponding flat plate shape so as to overlap and be positioned on the positioning portion 15, or other types of structures, etc., the present invention is not limited thereto.

[0071] Please refer to Figure 1 In addition to the above embodiments, in one embodiment of the present invention, the number of the latching parts 22 of the assembly 2 can be multiple, for example, one latching part 22 is provided at each of the shorter upper and lower edges of the base 21, and multiple latching parts 22 are provided at each of the longer left and right edges of the base 21, and the multiple latching parts 22 at the same left edge or right edge can be preferably arranged at equal intervals; the number and arrangement positions of the positioning parts 15 of the main frame 1 correspond to the latching parts 22 of the assembly 2. That is, the two short sections of the rear flange 14 correspond to the upper and lower edges of the base 21, respectively, so the short section of the rear flange 14 can be provided with a positioning part 15 at the middle position; the two long sections of the rear flange 14 correspond to the left and right edges of the base 21, respectively, so the long section of the rear flange 14 can be provided with two positioning parts 15, so as to enhance the limiting effect of the main frame 1 on the assembly 2, and prevent the assembly 2 from loosening relative to the main frame 1. In this way, the combination stability and manufacturing convenience of the main frame 1 and the assembly member 2 can be taken into account. Considering the product reliability requirements after the assembly member 2 is assembled to the main frame 1, the two positioning parts 15 provided on the long section of the rear flange 14 are preferably arranged at intervals, which means that the two positioning parts 15 of the long section of the rear flange 14 are bridged by a device abutment surface 141.

[0072] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention.

Claims

1. A mobile device protective shell assembly, suitable for cooperating with a mobile device, characterized in that: The mobile device protective shell set comprises: Main frame, with An inner annular surface, enclosed to define a chamber, wherein the chamber is suitable for accommodating the mobile device, a rear flange protruding from the inner annular surface toward the housing chamber, the rear flange having a device abutting surface suitable for the back side of the mobile device to abut against, and At least one positioning portion, disposed on the device abutment surface; and The assembly has a base and at least one latch portion, wherein the latch portion is arranged on a partial outer periphery of the base, the latch portion is suitable for combining with the positioning portion, and the device abutting surface and the latch portion are suitable for abutting against the back side of the mobile device.

2. The mobile device protective case assembly according to claim 1, wherein: The display screen of the mobile device is located at the front, the back side of the mobile device is located at the rear, the device abutment surface is the forward surface of the rear flange, and the device abutment surface and the forward surface of the latch portion can abut the back side of the mobile device.

3. The mobile device protective case assembly according to claim 2, wherein: The positioning portion has a groove, a hook portion and a notch, the groove is formed by the device abutment surface being recessed backward, the hook portion is located between the groove and the accommodation chamber, the free end height of the hook portion is lower than the position of the device abutment surface where the positioning portion is not provided to form the notch, and the latch portion forms a hook to penetrate into the notch and be embedded in the groove.

4. The mobile device protective case assembly according to claim 2, wherein: The inner annular surface is substantially smoothly connected to the forward-facing surface of the latch portion.

5. The mobile device protective case assembly according to claim 1, wherein: The outer periphery of the base where the latch portion is not provided is substantially smoothly connected to the device abutment surface.

6. The mobile device protective case assembly according to claim 5, wherein: The main frame has a front flange opposite to the rear flange, and the protrusion of the rear flange toward the accommodation chamber is greater than the protrusion of the front flange toward the accommodation chamber.

7. The mobile device protective case assembly according to claim 1, wherein: The assembly member has a plurality of latch parts, the upper and lower edges of the base are each provided with a latch part, and the left and right edges of the base are each provided with a plurality of latch parts arranged at equal intervals.

8. A main frame of a mobile device protective shell assembly, suitable for assembling a mobile device, characterized in that: The main frame has: an inner annular surface, which is surrounded to define a chamber, wherein the chamber is suitable for accommodating the mobile device; A rear flange protrudes from the inner annular surface toward the housing chamber, the rear flange having a device abutting surface suitable for the back side of the mobile device to abut against; and At least one positioning portion is provided on the device abutment surface.

9. The main frame of the mobile device protective shell assembly according to claim 8, characterized in that: The main frame is suitable for cooperating with the assembly component for assembling the mobile device. The periphery of the assembly component has at least one latching portion. The positioning portion of the main frame is suitable for being engaged with the latching portion of the assembly component.

10. The main frame of the mobile device protective shell assembly according to claim 9, characterized in that: The display screen of the mobile device is located at the front direction, the back side of the mobile device is located at the rear direction, and the inner annular surface is substantially smoothly connected to the front-facing surface of the latch portion.

11. The main frame of the mobile device protective shell assembly according to claim 9, characterized in that: The display screen of the mobile device is located at the front, and the back side of the mobile device is located at the rear. The positioning portion has a groove, a hook and a notch. The groove is formed by the device abutment surface being recessed toward the rear. The hook is located between the groove and the accommodation chamber. The free end height of the hook is lower than the position where the positioning portion is not provided on the device abutment surface to form the notch. The notch is suitable for the latch portion that forms the hook to penetrate into the notch and be embedded in the groove.

12. The main frame of the mobile device protective shell assembly according to claim 8, characterized in that: The main frame has a front flange opposite to the rear flange, and the protrusion of the rear flange toward the accommodation chamber is greater than the protrusion of the front flange toward the accommodation chamber.

13. An assembly member of a mobile device protective shell assembly, suitable for cooperating with a main frame for assembling a mobile device; the main frame is surrounded to define a chamber suitable for accommodating the mobile device, the main frame has a rear flange and at least one positioning portion, the rear flange has a device abutment surface suitable for the back side of the mobile device to abut, the positioning portion is arranged on the device abutment surface, characterized in that: The assembly has: base; and At least one latch portion is disposed on the outer periphery of the base portion, the latch portion is suitable for combining with the positioning portion of the main frame, and the device abutting surface and the latch portion are suitable for abutting against the back side of the mobile device.

14. The assembly component of the mobile device protective shell assembly according to claim 13, characterized in that: The display screen of the mobile device is located at the front, the back side of the mobile device is located at the rear, the device abutment surface is the forward surface of the rear flange, and the device abutment surface and the forward surface of the latch portion can abut the back side of the mobile device.

15. The assembly component of the mobile device protective shell assembly according to claim 13, characterized in that: The outer periphery of the base where the latch portion is not provided is suitable for being substantially smoothly connected with the device abutting surface of the main frame.

16. The assembly component of the mobile device protective shell assembly according to claim 13, characterized in that: There are multiple latch parts. The upper and lower edges of the base are each provided with a latch part, and the left and right edges of the base are each provided with multiple latch parts arranged at equal intervals.

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