Protective shell

Abstract

The utility model relates to the technical field of electronic equipment, and discloses a protective shell, and an accommodating cavity for accommodating electronic equipment is formed in the protective shell; the protective shell is provided with an extension structure, and the extension structure can deform when being stressed, so that the width size and / or the length size of the containing cavity are / is increased. The protective shell provided by the utility model can keep the appearances of mobile phones of various sizes secret, and has relatively good universality.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a protective shell. Background Art

[0002] The development of smartphone design and manufacturing has brought about more and more design options for smartphones. In order to maintain the mystery of new smartphone products and the stunning publicity when they are released, it is necessary to keep confidentiality before the release of new smartphone products.

[0003] Currently, a confidentiality case is usually included with the design of a smartphone to keep the appearance of the phone confidential, including the design of the screen, back cover, surrounding frame, front and rear cameras, etc.

[0004] However, with the diversification of smartphone design, the same model may have different lengths or widths due to production accuracy, different configurations and versions, etc. The confidentiality cases in related technologies are difficult to adapt to mobile phones of different sizes and have poor versatility. Utility Model Content

[0005] In view of this, the present application provides a protective case that can keep the appearance of mobile phones of various sizes confidential and has good versatility.

[0006] Specifically, this application includes the following technical solutions:

[0007] The present application provides a protective shell, characterized in that a receiving cavity for receiving an electronic device is formed inside the protective shell;

[0008] The protective shell is provided with an extension structure, and the extension structure can be deformed when subjected to force to increase the width and / or length of the accommodating cavity.

[0009] Optionally, the protective shell includes a first shell and a second shell, the first shell is annular, and the first shell and the second shell are butted against each other to form the accommodating cavity;

[0010] The extension structure comprises a first extension portion and a third extension portion for increasing the width dimension of the accommodating cavity, and / or a second extension portion and a fourth extension portion for increasing the length dimension of the accommodating cavity;

[0011] The first extension portion and the second extension portion are arranged on the first shell, and the third extension portion and the fourth extension portion are arranged on the second shell.

[0012] Optionally, the first housing includes two wide side frames extending along the width direction of the accommodation cavity, and two long side frames extending along the length direction of the accommodation cavity, and the wide side frames and the long side frames are alternately connected;

[0013] The first extension part is located on the two wide side frames, and the second extension part is located on the two long side frames.

[0014] Optionally, the first housing has an outer ring surface and an inner ring surface;

[0015] The first extension part includes a first groove opened on the outer ring surface and a second groove opened on the inner ring surface, and the first groove and the second groove are alternately and spaced along the circumferential direction of the first housing; and / or,

[0016] The second extension part includes a third groove opened on the outer ring surface and a fourth groove opened on the inner ring surface, and the third groove and the fourth groove are alternately and spaced along the circumferential direction of the first housing.

[0017] Optionally, along the width direction of the accommodation cavity, there is an overlapping area between the orthographic projection of the first groove and the orthographic projection of the second groove;

[0018] Along the length direction of the accommodation cavity, there is an overlapping area between the orthographic projection of the third groove and the orthographic projection of the fourth groove.

[0019] Optionally, the depth direction of the first groove is parallel to the depth direction of the second groove; and / or,

[0020] The depth direction of the third groove is parallel to the depth direction of the fourth groove.

[0021] Optionally, the depth direction of the first groove intersects with the length direction of the accommodation cavity; and / or,

[0022] The depth direction of the third groove intersects with the width direction of the accommodation cavity.

[0023] Optionally, the second housing has a first outer side surface and a second outer side surface that extend along the width direction of the accommodation cavity and are opposite in position;

[0024] The third extension part includes a fifth groove opened on the first outer side surface and a sixth groove opened on the target surface, and the fifth groove and the sixth groove are alternately and spaced along the width direction of the accommodation cavity, and the target surface is the second outer side surface or the inner side surface of the inner hole of the second housing.

[0025] Optionally, the target surface is the inner side surface of the inner hole of the second housing;

[0026] The third extension portion further includes a first strip-shaped hole and a second strip-shaped hole opened between the inner hole and the second outer side surface. The length direction of the first strip-shaped hole is the same as the depth direction of the fifth groove, and the length direction of the second strip-shaped hole is the same as the depth direction of the sixth groove. The first strip-shaped hole and the second strip-shaped hole are alternately and spaced apart along the width direction of the accommodation cavity. Wherein, one end of the first strip-shaped hole is closed and the other end extends to the second outer side surface, or both ends of the first strip-shaped hole are closed; one end of the second strip-shaped hole is closed and the other end extends to the inner side surface of the inner hole, or both ends of the second strip-shaped hole are closed.

[0027] Optionally, the first strip-shaped hole and the fifth groove are the same in number and corresponding in position; and / or,

[0028] the second strip-shaped hole and the sixth groove are the same in number and corresponding in position.

[0029] Optionally, along the width direction of the accommodation cavity, there is an overlapping area between the orthographic projection of the fifth groove and the orthographic projection of the sixth groove, and there is an overlapping area between the orthographic projection of the first strip-shaped hole and the orthographic projection of the second strip-shaped hole.

[0030] Optionally, the second housing has a third outer side surface and a fourth outer side surface that extend along the length direction of the accommodation cavity and are opposite in position;

[0031] The fourth extension portion includes a seventh groove opened on the third outer side surface and an eighth groove opened on the fourth outer side surface. The seventh groove and the eighth groove are alternately and spaced apart along the length direction of the accommodation cavity.

[0032] Optionally, along the length direction of the accommodation cavity, there is an overlapping area between the orthographic projection of the seventh groove and the orthographic projection of the eighth groove.

[0033] Optionally, the seventh groove is alternately communicated with the fifth groove and the sixth groove, and the eighth groove is alternately communicated with the fifth groove and the sixth groove.

[0034] Optionally, the fifth groove includes a first sub-groove, a second sub-groove and at least one third sub-groove;

[0035] The first sub-groove is located on one side of the fourth extension portion close to the first outer side surface, and there is a spacing between the first sub-groove and the fourth extension portion;

[0036] The second sub-groove is located on one side of the fourth extension portion close to the second outer side surface, and the second sub-groove is communicated with the fourth extension portion;

[0037] Each of the third sub-grooves is located between the adjacent seventh grooves and eighth grooves, and there is a spacing between one end of the third sub-groove close to the first sub-groove and the corresponding groove, and one end of the third sub-groove close to the second sub-groove is in communication with the corresponding groove.

[0038] Optionally, the sixth groove includes a fourth sub-groove, a fifth sub-groove and at least one sixth sub-groove;

[0039] The fourth sub-groove is located on a side of the fourth extension portion close to the first outer side surface, and the fourth sub-groove is in communication with the fourth extension portion;

[0040] The fifth sub-groove is located on a side of the fourth extension portion close to the second outer side surface, and there is a gap between the fifth sub-groove and the fourth extension portion;

[0041] Each of the sixth sub-grooves is located between the adjacent seventh grooves and eighth grooves, and one end of the sixth sub-groove close to the fourth sub-groove is in communication with the corresponding groove, and there is a spacing between one end of the sixth sub-groove close to the fifth sub-groove and the corresponding groove.

[0042] Optionally, the depth direction of the fifth groove is parallel to the depth direction of the sixth groove; and / or,

[0043] The depth direction of the seventh groove is parallel to the depth direction of the eighth groove.

[0044] Optionally, the depth direction of the fifth groove intersects with the length direction of the accommodation cavity; and / or,

[0045] The depth direction of the seventh groove intersects with the width direction of the accommodation cavity.

[0046] Optionally, the orthographic projection of the first extension portion on the projection plane and the orthographic projection of the third extension portion on the projection plane at least partially overlap; and / or,

[0047] The orthographic projection of the second extension portion on the projection plane and the orthographic projection of the fourth extension portion on the projection plane at least partially overlap,

[0048] wherein, the projection plane is perpendicular to the height direction of the accommodation cavity.

[0049] Optionally, after the extension structure is deformed by force, the increased dimension of the accommodation cavity in the length or width direction is less than or equal to 2% of the original dimension, and the original dimension is the length dimension or width dimension of the accommodation cavity before being deformed by force.

[0050] The beneficial effects of the technical solution provided by the embodiments of the present application at least include:

[0051] The protective case provided by the embodiments of the present application is provided with an extension structure that can deform when stressed. Therefore, the length dimension and width dimension of the accommodation cavity of the protective case are adjustable. When it is necessary to keep the appearance of electronic products such as mobile phones or tablets confidential, simply place the electronic product inside the protective case. Even if the length and width dimensions of electronic products with different configurations and versions are different from each other, or there are different degrees of length and width dimension errors in electronic products of different batches, the accommodation cavity of this protective case can achieve a good accommodation effect. That is to say, this protective case can adapt to electronic products of different sizes, thereby protecting the appearances of various sizes of electronic products and having good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0053] Figure 1 Shows a schematic structural diagram of the protective case provided by the embodiments of the present application;

[0054] Figure 2 Shows a schematic structural diagram of the first housing provided by the embodiments of the present application;

[0055] Figure 3 For Figure 2 The partial enlarged view at position A in

[0056] Figure 4 Shows a schematic structural diagram of the second housing provided by the embodiments of the present application;

[0057] Figure 5 For Figure 4 The partial enlarged view at position B in

[0058] Figure 6 For Figure 4 The partial enlarged view at position C in

[0059] Figure 7 Shows a schematic diagram of the back structure of the second housing provided by the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS:

[0061] 1. Protective case; 11. Accommodating cavity; 12. First housing; 121. Wide frame; 122. Long frame; 123. Outer ring surface; 124. Inner ring surface; 13. Second housing; 131. First outer side surface; 132. Second outer side surface; 133. Third outer side surface; 134. Fourth outer side surface; 135. Inner hole;

[0062] 2. Extension structure; 21. First extension part; 211. First groove; 212. Second groove; 22. Second extension part; 221. Third groove; 222. Fourth groove; 23. Third extension part; 231. Fifth groove; 2311. First sub - groove; 2312. Second sub - groove; 2313. Third sub - groove; 232. Sixth groove; 2321. Fourth sub - groove; 2322. Fifth sub - groove; 2323. Sixth sub - groove; 233. First strip - shaped hole; 234. Second strip - shaped hole; 24. Fourth extension part; 241. Seventh groove; 242. Eighth groove.

[0063] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0064] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application. To make the technical solutions and advantages of the present application clearer, the following will be combined with the attached Figure 1-7 A detailed description of the protective case, etc. will be given.

[0065] The development in the field of smartphone design and manufacturing has brought about more and more design solutions for smartphones. To maintain the mystery of new smartphone products and the stunning effect during publicity at the time of release, it is necessary to do a good job in confidentiality before the release of new smartphone products. Currently, usually a confidentiality case is designed along with the smartphone design to keep the appearance of the phone confidential, including the design solutions for the screen, the back cover, the surrounding frames, and the front and rear cameras.

[0066] However, with the diversification of smartphone design solutions, for the same model, due to reasons such as production precision, different configurations and versions, the length or width of the phone may vary, and the confidentiality cases in related technologies are difficult to adapt to phones of different sizes, resulting in poor versatility.

[0067] In response to this, the present application provides a protective case 1, asFigure 1 As shown, an accommodation cavity 11 for accommodating an electronic device is formed inside the protective case 1; an extension structure 2 is provided on the protective case 1, and the extension structure 2 can deform when subjected to force to increase the width dimension and / or length dimension of the accommodation cavity 11.

[0068] In the protective case 1 provided in the embodiment of the present application, an extension structure 2 that can deform when subjected to force is provided on the protective case 1. Therefore, the length dimension and width dimension of the accommodation cavity 11 of the protective case 1 are adjustable. When it is necessary to keep the appearance of electronic products such as mobile phones or tablets confidential, the electronic products can be directly placed inside the protective case 1. Even if the length and width dimensions of electronic products with different configurations and versions are different from each other, or there are different degrees of length and width errors in electronic products of different batches, the accommodation cavity 11 of the protective case 1 can achieve a good accommodation effect. That is to say, the protective case 1 can adapt to electronic products of different sizes, thereby protecting the appearance of the electronic products and having good versatility.

[0069] It should be noted that the protective case 1 provided in the embodiment of the present application can be a confidentiality case for keeping the appearance of electronic products confidential.

[0070] Those skilled in the art can select and adjust the number and specific structure of the extension structure 2 according to actual needs, so that the increased length dimension or width dimension of the accommodation cavity 11 does not exceed a certain value, so as to ensure that the structural strength and confidentiality performance of the protective case 1 will not be affected.

[0071] Optionally, after the extension structure 2 deforms under force, the increased dimension of the accommodation cavity 11 in the length or width direction is less than or equal to 2% of the corresponding original dimension, and the original dimension is the length dimension or width dimension of the accommodation cavity 11 before deformation under force. That is, the protective case 1 provided in the present application allows the electronic products to be kept confidential to have a length and width dimension change of 2%. Electronic products with a dimension change within this range can all be placed in the protective case 1 to protect their appearance before public release.

[0072] In some embodiments of the present application, as Figure 1 and Figure 2 shown, the protective case 1 may include a first housing 12 and a second housing 13. The first housing 12 is annular, and the first housing 12 and the second housing 13 are docked to form the accommodation cavity 11; the extension structure 2 includes a first extension part 21 and a third extension part 23 for increasing the width dimension of the accommodation cavity 11, and / or a second extension part 22 and a fourth extension part 24 for increasing the length dimension of the accommodation cavity 11; wherein, the first extension part 21 and the second extension part 22 are provided on the first housing 12, and the third extension part 23 and the fourth extension part 24 are provided on the second housing 13.

[0073] The protective case 1 provided in the embodiment of the present application can be composed of two cases. After the first case 12 and the second case 13 are docked, an accommodation cavity 11 is formed inside. When it is necessary to keep the electronic product confidential, the electronic product is placed inside either the first case 12 or the second case 13, and then docked with the other one, so as to wrap the electronic product. Finally, the two cases are connected, and the confidentiality work for the appearance of the electronic product is completed. The electronic product with the protective case 1 can be transferred to other places (such as an exhibition hall).

[0074] Optionally, the first case 12 and the second case 13 can be detachably connected by means such as screw connection, snap connection, and magnetic attraction connection. Those skilled in the art can select and adjust the connection method of the first case 12 and the second case 13 according to actual needs.

[0075] In some embodiments of the present application, the first case 12 may include two wide side frames 121 extending along the width direction of the accommodation cavity 11, and two long side frames 122 extending along the length direction of the accommodation cavity 11. The wide side frames 121 and the long side frames 122 are alternately connected; the first extension part 21 is located on the two wide side frames 121, and the second extension part 22 is located on the two long side frames 122.

[0076] As Figure 2 shown, the first case 12 is integrally annular and includes two wide side frames 121 and long side frames 122. In one example, when the electronic product to be kept confidential has different dimensional errors in the width direction, the electronic product exerts a force on the two long side frames 122, causing the first extension parts 21 on the two wide side frames 121 to deform, increasing the size of the accommodation cavity 11 in the width direction to adapt to the actual width dimension of the electronic product; similarly, when the electronic product has different dimensional errors in the length direction, the second extension parts 22 on the two long side frames 122 deform to adapt to the actual length dimension of the electronic product. In another example, when the width dimension of the electronic product to be kept confidential is greater than the width dimension of the accommodation cavity 11 of the protective case 1 in the natural state (i.e., the non-force state), the body of the electronic product exerts a force on the two long side frames 122, causing the first extension parts 21 on the two wide side frames 121 to deform, increasing the size of the accommodation cavity 11 in the width direction to adapt to the actual width dimension of the electronic product; similarly, when the length dimension of the electronic product is greater than the length dimension of the accommodation cavity 11 of the protective case 1 in the natural state (i.e., the non-force state), the second extension parts 22 on the two long side frames 122 deform to adapt to the actual length dimension of the electronic product.

[0077] In some embodiments of the present application, the first shell 12 has an outer annular surface 123 and an inner annular surface 124; the first extension portion 21 includes a first groove 211 opened on the outer annular surface 123, and a second groove 212 opened on the inner annular surface 124, and the first groove 211 and the second groove 212 are arranged alternately and at intervals along the annular direction of the first shell 12; and / or, the second extension portion 22 includes a third groove 221 opened on the outer annular surface 123, and a fourth groove 222 opened on the inner annular surface 124, and the third groove 221 and the fourth groove 222 are arranged alternately and at intervals along the annular direction of the first shell 12.

[0078] In the protective shell 1 provided in the embodiment of the present application, Figure 2 and Figure 3 As shown, a first extension portion 21 is provided on the wide frame 121 of the first shell 12, and the first extension portion 21 is composed of a first groove 211 and a second groove 212, wherein the first groove 211 is provided on the outer annular surface 123, and the second groove 212 is provided on the inner annular surface 124, so as to form a plurality of "J"-shaped structures on the wide frame 121 of the first shell 12. When the "J"-shaped structure is subjected to a tensile force, the entity portion between the first groove 211 and the second groove 212 will deform, that is, the opposite side walls of the first groove 211 and the opposite side walls of the second groove 212 will tilt away from each other, resulting in the enlargement of the size of the opening ends of the first groove 211 and the second groove 212, thereby increasing the size of the wide frame 121 in the width direction. The working principle of the second extension portion 22 on the long frame 122 is the same as that of the first extension portion 21, and this application will not be repeated here.

[0079] Optionally, along the width direction of the accommodating cavity 11, there is an overlapping area between the orthographic projection of the first groove 211 and the orthographic projection of the second groove 212; and / or, along the length direction of the accommodating cavity 11, there is an overlapping area between the orthographic projection of the third groove 221 and the orthographic projection of the fourth groove 222.

[0080] Taking the first groove 211 and the second groove 212 as an example, the sum of the depth of the first groove 211 and the depth of the second groove 212 is greater than the length dimension of the wide frame 121, wherein the depth direction of the groove is perpendicular to the opening plane of the opening end of the groove. Due to the deeper depth of the groove, the solid part between the first groove 211 and the second groove 212 is more likely to deform when subjected to force, so it does not take too much effort to install a larger electronic device into the protective shell 1. Similarly, the depth of the third groove 221 and the fourth groove 222 is also deeper, and it is easy to deform, so it is more labor-saving to install a larger electronic device.

[0081] Optionally, the depth direction of the first groove 211 is parallel to the depth direction of the second groove 212; and / or, the depth direction of the third groove 221 is parallel to the depth direction of the fourth groove 222.

[0082] When the depth direction of the first groove 211 is parallel to the depth direction of the second groove 212, it can ensure that the first extension part 21 can deform more easily when subjected to an external force, and the dimensional change amount of the opening end of the first groove 211 is approximately the same as the dimensional change amount of the opening end of the second groove 212, ensuring that the force on each solid part between the first groove 211 and the second groove 212 is balanced, so as to improve the service life of the first extension part 21; similarly, when the third groove 221 and the fourth groove 222 are parallel, it can ensure that the force on each solid part between the third groove 221 and the fourth groove 222 is balanced, improving the service life of the second extension part 22.

[0083] Optionally, the depth direction of the first groove 211 intersects with the length direction of the accommodation cavity 11; and / or, the depth direction of the third groove 221 intersects with the width direction of the accommodation cavity 11. In the embodiments of the present application, the two directions "intersect" means that the angle between the two directions is greater than zero and less than 90°. That is, the depth directions of the first groove 211 and the second groove 212 are not parallel to the length direction, but are inclined at a certain angle with the length direction. Since the first groove 211 and the second groove 212 are inclined, the spacing distance between the opening ends of the first groove 211 and the second groove 212 in the width direction is increased, and the deformation size when the first extension part 21 deforms (the inclination degree of the solid part between the first groove 211 and the second groove 212) naturally increases, that is, the deformation amount of the first housing 12 in the width direction is increased, and the versatility of the protective shell 1 is better; similarly, the depth directions of the third groove 221 and the fourth groove 222 intersecting with the width direction also have the above effects, which can improve the versatility of the protective shell 1.

[0084] In some embodiments of the present application, the second housing 13 has a first outer side surface 131 and a second outer side surface 132 that extend along the width direction of the accommodation cavity 11 and are opposite in position; the third extension part 23 includes a fifth groove 231 opened on the first outer side surface 131 and a sixth groove 232 opened on the target surface, and the fifth groove 231 and the sixth groove 232 are arranged alternately and at intervals along the width direction of the accommodation cavity 11, and the target surface is the second outer side surface 132 or the inner side surface of the inner hole 135 of the second housing 13.

[0085] In the protective shell 1 provided in the embodiments of the present application, as Figure 4 and Figure 5As shown, a fifth groove 231 is formed on the first outer surface 131, and a sixth groove 232 is formed on the target surface, so as to form a plurality of "ji" - shaped structures on the second housing 13. The solid part between the fifth groove 231 and the sixth groove 232 will be deformed, that is, the opposite side walls of the fifth groove 231 and the opposite side walls of the sixth groove 232 will be inclined away from each other, resulting in an increase in the size of the opening ends of the fifth groove 231 and the sixth groove 232, and further increasing the size of the second housing 13 in the width direction.

[0086] In some embodiments, an inner hole 135 is formed on the second housing 13 to avoid corresponding protruding structures on the electronic product or meet other requirements. Exemplarily, since the rear - camera assembly on the electronic product generally protrudes from the rear shell of the electronic product, an inner hole 135 can be formed at a corresponding position on the second housing 13 of the protective case 1 to at least partially expose the rear - camera assembly of the electronic product. Similarly, the inner hole 135 can also be an avoidance hole for the speaker sound hole, an avoidance hole for the button, etc.

[0087] Taking the inner hole 135 as an avoidance hole for the rear - camera assembly as an example, the structure of the second housing 13 will be introduced in detail below.

[0088] As Figure 4 and Figure 6 shown, the target surface is the inner side surface of the inner hole 135 of the second housing 13; the third extension part 23 further includes a first strip - shaped hole 233 and a second strip - shaped hole 234 formed between the inner hole 135 and the second outer surface 132. The length direction of the first strip - shaped hole 233 is the same as the depth direction of the fifth groove 231, and the length direction of the second strip - shaped hole 234 is the same as the depth direction of the sixth groove 232. The first strip - shaped hole 233 and the second strip - shaped hole 234 are arranged alternately and at intervals along the width direction of the accommodation cavity 11; wherein, one end of the first strip - shaped hole 233 is closed and the other end extends to the second outer surface 132, or both ends of the first strip - shaped hole 233 are closed; one end of the second strip - shaped hole 234 is closed and the other end extends to the inner side surface of the inner hole 135, or both ends of the second strip - shaped hole 234 are closed.

[0089] In the protective shell 1 provided by the embodiment of the present application, the third extension part 23 is divided into two parts with the inner hole 135 as the boundary. The fifth groove 231 in the first part is opened on the first outer side surface 131, and the sixth groove 232 is opened on the inner side surface of the inner hole 135, so as to form a plurality of "ji" - shaped structures on the side of the inner hole 135 away from the first strip - shaped hole 233 in the second housing 13. The working principle of the "ji" - shaped structure is the same as that of the first extension part 21, and the present application will not elaborate on it here; the second part includes the first strip - shaped hole 233 and the second strip - shaped hole 234. The solid parts around the first strip - shaped hole 233 and the second strip - shaped hole 234 can also deform when stressed, so as to increase the size of the accommodation cavity 11 in the length direction or the width direction, improving the versatility of the protective shell 1.

[0090] Optionally, the number of the first strip - shaped holes 233 is the same as that of the fifth grooves 231 and their positions correspond; and / or, the number of the second strip - shaped holes 234 is the same as that of the sixth grooves 232 and their positions correspond, which can ensure that when the electronic product is placed, the deformation amounts at the fifth groove 231 and the sixth groove 232 are approximately the same as those at the first strip - shaped hole 233 and the second strip - shaped hole 234, so that the deformation dimensions of each area of the second housing 13 in the length direction are approximately the same, avoiding the situation where the size of one of the fifth groove 231 and the sixth groove 232 and the first strip - shaped hole 233 and the second strip - shaped hole 234 fits the electronic product while the size of the other does not.

[0091] Optionally, along the width direction of the accommodation cavity 11, there is an overlapping area between the orthographic projection of the fifth groove 231 and the orthographic projection of the sixth groove 232, and there is an overlapping area between the orthographic projection of the first strip - shaped hole 233 and the orthographic projection of the second strip - shaped hole 234.

[0092] The sum of the depth of the fifth groove 231 and the depth of the sixth groove 232 is greater than the dimension of the first outer side surface 131 to the target surface in the length direction. Since the depth of the groove is relatively deep, the solid parts on both sides of the fifth groove 231 are more likely to deform when stressed, and the solid parts on both sides of the sixth groove 232 are also more likely to deform when stressed. Therefore, it is more labor - saving to install an electronic device with a larger installation size.

[0093] Optionally, the second housing 13 has a third outer side surface 133 and a fourth outer side surface 134 that extend along the length direction of the accommodation cavity 11 and are opposite in position; the fourth extension part 24 includes a seventh groove 241 opened on the third outer side surface 133 and an eighth groove 242 opened on the fourth outer side surface 134, and the seventh groove 241 and the eighth groove 242 are arranged alternately and at intervals along the length direction of the accommodation cavity 11.

[0094] In the protective shell 1 provided by the embodiment of the present application, as Figure 5As shown, a fourth extension portion 24 is provided on the second shell 13, and the fourth extension portion 24 is composed of a seventh groove 241 and an eighth groove 242, wherein the seventh groove 241 is opened on the third outer side surface 133, and the eighth groove 242 is opened on the fourth outer side surface 134, so as to form a plurality of "J"-shaped structures on the second shell 13, which can be deformed when subjected to force to adapt to electronic products of various sizes and have good versatility; wherein, the working principle of the "J"-shaped structure is the same as that of the first extension portion 21, and the present application will not elaborate on it here.

[0095] Optionally, along the length direction of the accommodating cavity 11, there is an overlapping area between the orthographic projection of the seventh groove 241 and the orthographic projection of the eighth groove 242. The sum of the depth of the seventh groove 241 and the depth of the eighth groove 242 is greater than the dimension of the second shell in the width direction. Due to the deeper depth of the groove, the solid parts on both sides of the seventh groove 241 are more likely to deform when subjected to force, and the solid parts on both sides of the eighth groove 242 are also more likely to deform when subjected to force.

[0096] Optionally, the seventh groove 241 is connected to the fifth groove 231 and the sixth groove 232 in an alternating manner, and the eighth groove 242 is connected to the fifth groove 231 and the sixth groove 232 in an alternating manner. Figure 5 As shown, the fifth groove 231 includes a first sub-groove 2311, a second sub-groove 2312 and at least one third sub-groove 2313; the first sub-groove 2311 is located on a side of the fourth extension portion 24 close to the first outer side surface 131, and there is a spacing between the first sub-groove 2311 and the fourth extension portion 24; the second sub-groove 2312 is located on a side of the fourth extension portion 24 close to the second outer side surface 132, and the second sub-groove 2312 is communicated with the fourth extension portion 24; each third sub-groove 2313 is located between the adjacent seventh groove 241 and the eighth groove 242, and there is a spacing between one end of the third sub-groove 2313 close to the first sub-groove 2311 and the corresponding groove, and one end of the third sub-groove 2313 close to the second sub-groove 2312 is communicated with the corresponding groove; Furthermore, the sixth groove 232 includes a fourth sub-groove 2321, a fifth sub-groove 2322 and at least one sixth sub-groove 2323; the fourth sub-groove 2321 is located on the side of the fourth extension portion 24 close to the first outer side surface 131, and the fourth sub-groove 2321 is connected to the fourth extension portion 24; the fifth sub-groove 2322 is located on the side of the fourth extension portion 24 close to the second outer side surface 132, and there is a gap between the fifth sub-groove 2322 and the fourth extension portion 24; each sixth sub-groove 2323 is located between the adjacent seventh groove 241 and the eighth groove 242, and the end of the sixth sub-groove 2323 close to the fourth sub-groove 2321 is connected to the corresponding groove, and there is a gap between the end of the sixth sub-groove 2323 close to the fifth sub-groove 2322 and the corresponding groove.

[0097] As shown Figure 5 in the figure, the fifth groove 231 includes a third sub-groove 2313, and the sixth groove 232 includes a sixth sub-groove 2323. Taking one of the third sub-grooves 2313 as an example, the third sub-groove 2313 communicates with the seventh groove 241, and the sixth sub-groove 2323 arranged at an interval from the third sub-groove 2313 communicates with the eighth groove 242. That is, the third sub-groove 2313, the sixth sub-groove 2323, and the solid part in the middle of the two also form the above-mentioned "ji"-shaped structure, and can also deform when stressed to increase the size of the first housing 12 in the width direction; similarly, when the number of the third sub-grooves 2313 is multiple and the number of the sixth sub-grooves 2323 is multiple, multiple "ji"-shaped structures are formed here, and the deformation principle of each "ji"-shaped structure is the same as that of the first extension part 21. This application will not elaborate too much here.

[0098] Optionally, the depth direction of the fifth groove 231 is parallel to the depth direction of the sixth groove 232; and / or, the depth direction of the seventh groove 241 is parallel to the depth direction of the eighth groove 242.

[0099] When the depth direction of the fifth groove 231 is parallel to the depth direction of the sixth groove 232, it can ensure that the third extension part 23 can deform more easily when subjected to an external force, and the deformation amounts at the fifth groove 231 and the sixth groove 232 are approximately the same, ensuring that the solid parts between the fifth groove 231 and the sixth groove 232 are stressed evenly to improve the service life of the third extension part 23; similarly, when the depth directions of the seventh groove 241 and the eighth groove 242 are parallel, it can ensure that the solid parts between the seventh groove 241 and the eighth groove 242 are stressed evenly to improve the service life of the fourth extension part 24.

[0100] Optionally, as Figure 7 shown in the figure, the depth direction of the fifth groove 231 intersects with the length direction of the accommodation cavity 11; and / or, the depth direction of the seventh groove 241 intersects with the width direction of the accommodation cavity 11, that is, the depth directions of the fifth groove 231 and the sixth groove 232 are not parallel to the length direction, but are inclined at a certain angle with respect to the length direction. Due to the inclined arrangement of the fifth groove 231 and the sixth groove 232, the interval distance between the open ends of the fifth groove 231 and the sixth groove 232 in the width direction is increased, and the deformation size (the inclination degree of the solid part between the fifth groove 231 and the sixth groove 232) during the deformation of the fifth extension part naturally increases, increasing the deformation amount of the fifth housing in the width direction, and the versatility of the protective shell 1 is better; similarly, the depth direction of the seventh groove 241 intersecting with the width direction also has the above effects, which can improve the versatility of the protective shell 1.

[0101] In some embodiments of the present application, the orthographic projection of the first extension portion 21 on the projection plane and the orthographic projection of the third extension portion 23 on the projection plane at least partially overlap; and / or, the orthographic projection of the second extension portion 22 on the projection plane and the orthographic projection of the fourth extension portion 24 on the projection plane at least partially overlap, where the projection plane is perpendicular to the height direction of the accommodation cavity 11.

[0102] The positions where the first housing 12 deforms in the length direction or the width direction and the positions where the second housing 13 deforms in the length direction or the width direction are substantially symmetric in the height direction, so that when the first housing 12 and the second housing 13 deform, the positions, sizes, and directions of the deformations are more corresponding, and they can better adapt to electronic products of different sizes, with better versatility.

[0103] In the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plurality" means two or more, unless otherwise clearly defined.

[0104] Those skilled in the art will readily think of other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and examples are only illustrative.

[0105] It should be understood that the present application is not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A protective case (1), characterized in that, An accommodation cavity (11) for accommodating an electronic device is formed inside the protective case (1); An extension structure (2) is provided on the protective case (1), and the extension structure (2) can be deformed when stressed to increase the width dimension and / or length dimension of the accommodation cavity (11).

2. The protective case (1) according to claim 1, characterized in that, The protective case (1) includes a first case body (12) and a second case body (13). The first case body (12) is annular, and the first case body (12) and the second case body (13) are docked to enclose the accommodation cavity (11); The extension structure (2) includes a first extension part (21) and a third extension part (23) for increasing the width dimension of the accommodation cavity (11), and / or a second extension part (22) and a fourth extension part (24) for increasing the length dimension of the accommodation cavity (11); Wherein, the first extension part (21) and the second extension part (22) are provided on the first case body (12), and the third extension part (23) and the fourth extension part (24) are provided on the second case body (13).

3. The protective case (1) according to claim 2, characterized in that, The first case body (12) includes two wide side frames (121) extending along the width direction of the accommodation cavity (11), and two long side frames (122) extending along the length direction of the accommodation cavity. The wide side frames (121) and the long side frames (122) are alternately connected; The first extension part (21) is located on the two wide side frames (121), and the second extension part (22) is located on the two long side frames (122).

4. The protective case (1) according to claim 2 or 3, characterized in that, The first case body (12) has an outer ring surface (123) and an inner ring surface (124); The first extension part (21) includes a first groove (211) opened on the outer ring surface (123) and a second groove (212) opened on the inner ring surface (124). The first groove (211) and the second groove (212) are alternately and spaced along the circumferential direction of the first case body (12); and / or, The second extension part (22) includes a third groove (221) opened on the outer ring surface (123) and a fourth groove (222) opened on the inner ring surface (124). The third groove (221) and the fourth groove (222) are alternately and spaced along the circumferential direction of the first case body (12).

5. The protective case (1) according to claim 4, characterized in that, Along the width direction of the accommodation cavity (11), there is an overlapping area between the orthographic projection of the first groove (211) and the orthographic projection of the second groove (212); and / or, Along the length direction of the accommodation cavity (11), there is an overlapping area between the orthographic projection of the third groove (221) and the orthographic projection of the fourth groove (222).

6. The protective case (1) according to claim 5, characterized in that, The depth direction of the first groove (211) is parallel to the depth direction of the second groove (212); and / or, The depth direction of the third groove (221) is parallel to the depth direction of the fourth groove (222).

7. The protective case (1) according to claim 6, characterized in that, The depth direction of the first groove (211) intersects with the length direction of the accommodation cavity (11); and / or, The depth direction of the third groove (221) intersects with the width direction of the accommodation cavity (11).

8. The protective case (1) according to claim 2, characterized in that, The second housing (13) has a first outer side surface (131) and a second outer side surface (132) that extend along the width direction of the accommodation cavity (11) and are opposite in position; The third extension part (23) includes a fifth groove (231) formed on the first outer side surface (131) and a sixth groove (232) formed on a target surface, the fifth groove (231) and the sixth groove (232) are arranged alternately and at intervals along the width direction of the accommodation cavity (11), and the target surface is the inner side surface of the second outer side surface (132) or the inner hole (135) of the second housing (13).

9. The protective case (1) according to claim 8, characterized in that, The target surface is the inner side surface of the inner hole (135) of the second housing (13); The third extension part (23) further includes a first strip hole (233) and a second strip hole (234) formed between the inner hole and the second outer side surface, the length direction of the first strip hole (233) is the same as the depth direction of the fifth groove (231), the length direction of the second strip hole (234) is the same as the depth direction of the sixth groove (232), and the first strip hole (233) and the second strip hole (234) are arranged alternately and at intervals along the width direction of the accommodation cavity (11); wherein, one end of the first strip hole (233) is closed and the other end extends to the second outer side surface (132), or both ends of the first strip hole (233) are closed; one end of the second strip hole (234) is closed and the other end extends to the inner side surface of the inner hole (135), or both ends of the second strip hole (234) are closed.

10. The protective case (1) according to claim 9, characterized in that, The number of the first strip holes (233) is the same as that of the fifth grooves (231) and they are corresponding in position; and / or, The number of the second strip holes (234) is the same as that of the sixth grooves (232) and they are corresponding in position.

11. The protective case (1) according to claim 9 or 10, characterized in that, Along the width direction of the accommodation cavity (11), there is an overlapping area between the orthographic projection of the fifth groove (231) and the orthographic projection of the sixth groove (232), and there is an overlapping area between the orthographic projection of the first strip hole (233) and the orthographic projection of the second strip hole (234).

12. The protective case (1) according to claim 8, characterized in that, The second housing (13) has a third outer side surface (133) and a fourth outer side surface (134) that extend along the length direction of the accommodation cavity (11) and are opposite in position; The fourth extension part (24) includes a seventh groove (241) formed on the third outer side surface (133) and an eighth groove (242) formed on the fourth outer side surface (134), and the seventh groove (241) and the eighth groove (242) are arranged alternately and at intervals along the length direction of the accommodation cavity.

13. The protective case (1) according to claim 12, characterized in that, Along the length direction of the accommodation cavity, there is an overlapping area between the orthographic projection of the seventh groove (241) and the orthographic projection of the eighth groove (242).

14. The protective case (1) according to claim 12, characterized in that, The seventh groove (241) intersects and communicates with the fifth groove (231) and the sixth groove (232), and the eighth groove (242) intersects and communicates with the fifth groove (231) and the sixth groove (232).

15. The protective case (1) according to claim 14, characterized in that, The fifth groove (231) includes a first sub-groove (2311), a second sub-groove (2312) and at least one third sub-groove (2313); The first sub-groove (2311) is located on one side of the fourth extension portion (24) close to the first outer side surface (131), and there is a spacing between the first sub-groove (2311) and the fourth extension portion (24); The second sub-groove (2312) is located on one side of the fourth extension portion (24) close to the second outer side surface (132), and the second sub-groove (2312) communicates with the fourth extension portion (24); Each third sub-groove (2313) is located between the adjacent seventh groove (241) and the eighth groove (242), and there is a spacing between one end of the third sub-groove (2313) close to the first sub-groove (2311) and the corresponding groove, and one end of the third sub-groove (2313) close to the second sub-groove (2312) communicates with the corresponding groove.

16. The protective case (1) according to claim 14 or 15, characterized in that, The sixth groove (232) includes a fourth sub-groove (2321), a fifth sub-groove (2322) and at least one sixth sub-groove (2323); The fourth sub-groove (2321) is located on one side of the fourth extension portion (24) close to the first outer side surface (131), and the fourth sub-groove (2321) communicates with the fourth extension portion (24); The fifth sub-groove (2322) is located on one side of the fourth extension portion (24) close to the second outer side surface (132), and there is a gap between the fifth sub-groove (2322) and the fourth extension portion (24); Each sixth sub-groove (2323) is located between the adjacent seventh groove (241) and the eighth groove (242), and one end of the sixth sub-groove (2323) close to the fourth sub-groove (2321) communicates with the corresponding groove, and there is a spacing between one end of the sixth sub-groove (2323) close to the fifth sub-groove (2322) and the corresponding groove.

17. The protective case (1) according to claim 12, characterized in that, The depth direction of the fifth groove (231) is parallel to the depth direction of the sixth groove (232); and / or, The depth direction of the seventh groove (241) is parallel to the depth direction of the eighth groove (242).

18. The protective case (1) according to claim 17, characterized in that, The depth direction of the fifth groove (231) intersects the length direction of the accommodation cavity; and / or, The depth direction of the seventh groove (241) intersects the width direction of the accommodation cavity (11).

19. The protective case (1) according to claim 2, characterized in that, The orthographic projection of the first extension portion (21) on the projection plane and the orthographic projection of the third extension portion (23) on the projection plane at least partially overlap; and / or, The orthographic projection of the second extension portion (22) on the projection plane and the orthographic projection of the fourth extension portion (24) on the projection plane at least partially overlap. Wherein, the projection plane is perpendicular to the height direction of the accommodation cavity (11).

20. The protective case according to claim 1, wherein After the extension structure (2) is deformed under force, the increased dimension of the accommodation cavity (11) in the length or width direction is less than or equal to 2% of the original dimension, and the original dimension is the length dimension or width dimension of the accommodation cavity (11) before being deformed under force.

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