CN212590791U - Mobile terminal protective housing - Google Patents

Abstract

The utility model relates to a mobile terminal protective housing, which comprises a main body and an outer frame, wherein the main body comprises a sequential side part, a transition part and a bottom part along the thickness direction of the protective housing, the side part and the transition part surround the outer edge of the bottom part, the transition part is positioned between the side part and the bottom part, and the side part, the bottom part and the transition part are surrounded together to form an accommodating cavity; along the circumferential direction of the protective shell, at least the corner part of the main body is provided with a first groove, and the first groove is arranged on one side of the main body, which is far away from the accommodating cavity; the outer frame made of metal materials is inlaid in the first groove, the outer frame comprises a platform part and an inclined part in the thickness direction of the protective shell, the platform part is located at the bottom, at least part of the inclined part is located at the transition part, an included angle between the inclined part and the reverse extension line of the platform part is alpha, and alpha is more than 0 degree and less than 90 degrees. The utility model discloses a protective housing, transition portion and the position homoenergetic that the bottom is close to transition portion form the dual protection to can disperse the impact force that absorbs mobile terminal and drop effectively.

Description

Mobile terminal protective housing

Technical Field

The utility model relates to a protective housing technical field especially relates to a mobile terminal protective housing.

Background

The mobile terminal or the mobile communication terminal refers to a computer device which can be used in moving, and broadly includes a mobile phone, a notebook, a tablet computer, an intelligent game machine, even a vehicle-mounted computer, a wearable intelligent device and the like. The mobile intelligent terminal has the capability of accessing the Internet, is usually provided with various operating systems, and can customize various functions according to the requirements of users. Common intelligent terminals in life are mobile smart phones, vehicle-mounted intelligent terminals, smart televisions, smart tablet computers, wearable devices and the like. Along with the popularization of intelligent mobile terminal electronic products such as smart mobile phone, bluetooth headset, intelligent panel computer, in order to prevent the machine scratch and break, need carry out effectual protection for the product shell, but at present most protective housing all use materials such as plastic and other soft plastics to make, and the damping performance is poor, especially when taking place the side and fall, causes the harm to product itself easily.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a mobile terminal protection case to solve the above problems.

The utility model discloses a mobile terminal protective housing, including main part and outline, wherein, the main part includes side edge portion, transition portion and bottom in proper order in the thickness direction of protective housing, side edge portion and transition portion surround the outside edge of bottom, and the transition portion is located between side edge portion and bottom, and side edge portion, bottom and transition portion enclose jointly and form the holding chamber that is used for holding mobile terminal; along the circumferential direction of the protective shell, at least the corner part of the main body is provided with a first groove, and the first groove is arranged on one side of the main body, which is far away from the accommodating cavity; the outline is made by metal material, the outline is inlayed in first recess, the outline includes platform portion and rake along the thickness direction of protective housing, platform portion is located the bottom, at least part the rake is located transition portion, the contained angle between the reverse extension line of rake and platform portion is alpha, and 0 is < alpha < 90.

In one embodiment, the mobile terminal protective case further includes an inner rim made of a soft material; at least the corner of the main body is provided with a second groove along the circumferential direction of the protective shell, the second groove is arranged on one side of the main body close to the accommodating cavity, and the inner frame is embedded in the second groove; the inner frame and the outer frame are partially projected on the transition part and the bottom part, so that triple protection can be formed at the positions of the transition part and the bottom part, which are close to the transition part.

In one embodiment, the main body includes a side frame and a back cover, the side frame and the back cover being made of different materials; the side frame comprises a frame part and an edge part, the frame part is positioned on the side edge part, the edge part is positioned on the bottom part, and a hollow part is arranged at the position, corresponding to the transition part and the bottom part, of the side frame, close to the transition part; the rear cover comprises a first plane part, a second plane part and a bending part which are connected in sequence, the first plane part and the second plane part are arranged at the bottom, and the bending part is filled in the hollow part.

In one embodiment, the rear cover is combined with the side frame through an insert injection process; the second plane portion is arranged on one side, close to the accommodating cavity, of the edge portion, and the edge portion protrudes out of the first plane portion in the direction departing from the accommodating cavity.

In one embodiment, a part of the second groove is arranged on one side of the frame part close to the accommodating cavity, and the other part of the second groove is arranged on one side of the bending part close to the accommodating cavity; the inner frame is combined with the frame part and the bending part through an embedding and injecting process.

In one embodiment, the bent portion of the rear cover and the frame portion and the edge portion of the side frame jointly enclose to form the first groove, and the outer frame is combined with the bent portion in the first groove.

In one embodiment, the outer frame is combined with the bending part through an insert molding process or a dispensing process.

In one embodiment, the side frames are made of a first material, the back cover is made of a second material, and the inner bezel is made of a third material; the first material has an elasticity greater than the second material, and the third material has an elasticity greater than the first material.

In one embodiment, the inner frame comprises a first portion, a second portion and a third portion which are sequentially connected in the thickness direction of the protective shell, the first portion is located at the side edge portion, the second portion is located at the transition portion, and the third portion is located at the bottom portion.

In one embodiment, the surface of one side of the inner frame, which is close to the accommodating cavity, is uneven, so that a shock-absorbing air bag can be formed between the inner frame and the outer surface of the mobile terminal.

In one embodiment, the main body includes a side frame and a back cover, which are made of the same material.

The utility model discloses a mobile terminal protective housing, its beneficial effect does:

the utility model discloses a mobile terminal protective housing, shape through the reasonable main part that sets up, and the position and the shape of first recess and outline, set up the bight position in the main part with first recess at least, and set up the one side that the main part deviates from the holding chamber with first recess, the outline is inlayed in first recess, the outline is including platform portion and rake on the thickness direction of protective housing, platform portion is located the bottom, at least part rake is located transition portion, make transition portion and bottom be close to the position homoenergetic formation duplicate protection of transition portion, thereby can disperse the impact force that absorbs mobile terminal and fall effectively, prevent that mobile terminal from being broken and reducing.

Drawings

Fig. 1 is an explosion structure diagram of a mobile terminal protection shell according to an embodiment of the present invention.

Fig. 2 is an overall structure schematic diagram of the protective housing of the mobile terminal according to an embodiment of the present invention.

Fig. 3 is a longitudinal cross-sectional view of the protective casing of the mobile terminal according to an embodiment of the present invention.

Fig. 4 is a longitudinal cross-sectional view of a protective case of a mobile terminal according to another embodiment of the present invention.

Reference numerals:

the multifunctional key comprises a main body 100, a side edge part 110, a transition part 120, a bottom part 130, a side frame 140, a frame part 141, an edge part 142, a hollow part 143, a connecting part 144, an arc part 145, a function hole 146, a function key 147, a rear cover 150, a first plane part 151, a second plane part 152 and a bending part 153; a second groove 160, a first groove 170, a receiving cavity 180; an inner frame 200, a first portion 210, a second portion 220, a third portion 230, a shock absorbing bladder 240; outer frame 300, platform portion 310, inclined portion 320.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment. In addition, it should be noted that, in the sectional views in the drawings herein, the hatching is provided to more clearly illustrate the specific structure of the embodiments of the present invention, the same hatching schematically represents the same component or represents different components made of the same material, and the shape of the hatching, including the inclination angle and the spacing distance, does not strictly follow the hatching setting of different materials in the mechanical drawing. For example, in the drawings herein, the hatching inclined at 45 ° does not necessarily represent a metal material, but may represent other non-metal materials.

The mobile terminal or the mobile communication terminal refers to a computer device which can be used in moving, and broadly includes a mobile phone, a notebook, a tablet computer, an intelligent game machine, even a vehicle-mounted computer, a wearable intelligent device and the like. The mobile intelligent terminal has the capability of accessing the Internet, is usually provided with various operating systems, and can customize various functions according to the requirements of users. Common intelligent terminals in life are mobile smart phones, vehicle-mounted intelligent terminals, smart televisions, smart tablet computers, wearable devices and the like. Along with the popularization of intelligent mobile terminal electronic products such as smart mobile phone, bluetooth headset, intelligent panel computer, in order to prevent the machine scratch and break, need carry out effectual protection for the product shell, but at present most protective housing all use materials such as plastic and other soft plastics to make, and the damping performance is poor, especially when taking place the side and fall, causes the harm to product itself easily.

In order to solve the problem, the utility model provides a mobile terminal protective housing. In one embodiment, as shown in fig. 1 to 3, fig. 1 is an exploded structural view of the protective shell, fig. 2 is an overall structural view of the protective shell, and fig. 3 is a longitudinal sectional view of the protective shell in a thickness direction. As shown in fig. 1, the mobile terminal protective case includes a main body 100, an inner frame 200 and an outer frame 300, wherein the inner frame 200 is made of a soft material, and the outer frame 300 is made of a metal material; as shown in fig. 2 and 3, the main body 100 includes a side portion 110, a transition portion 120 and a bottom portion 130 in sequence along a thickness direction of the protective shell, the side portion 110 and the transition portion 120 surround an outer edge of the bottom portion 130, the transition portion 120 is located between the side portion 110 and the bottom portion 130, and the side portion 110, the bottom portion 130 and the transition portion 120 together surround to form an accommodating cavity 180 for accommodating the mobile terminal. The transition portion 120 is disposed obliquely with respect to the bottom portion 130, a portion of the side portion 110 close to the bottom portion 130 is perpendicular to the bottom portion 130, and a portion of the side portion 110 away from the bottom portion 130 is bent toward the accommodating cavity 180 to better fix the mobile terminal. A second groove 160 is formed in one side of the main body 100 close to the accommodating cavity 180, a first groove 170 is formed in one side of the main body away from the accommodating cavity 180, the inner frame 200 is embedded in the second groove 160, and the outer frame 300 is embedded in the first groove 170; the inner frame 200 and the outer frame 300 are partially projected at the positions of the transition part 120 and the bottom part 130 close to the transition part 120, so that the positions of the transition part 120 and the bottom part 130 close to the transition part 120 can form triple protection.

As shown in fig. 1, the main body 100 includes a side frame 140 and a rear cover 150, the protective shell is rectangular, corners of the side frame 140 transition through an arc, the side frame 140 includes a connecting portion 144 and an arc portion 145 that are sequentially connected, the inner frame 200 is disposed at one side of the main body 100 close to the accommodating cavity 180 in a segmented manner, and the outer frame 300 is disposed at one side of the main body 100 away from the accommodating cavity 180 in a continuous manner. As can be seen from fig. 1, the inner frame 200 and the outer frame 300 are correspondingly embedded in the four arc portions 145 of the side frame 140, and the inner frame 200 and the outer frame 300 are correspondingly embedded in the connecting portions 144 of the side frame 140 except for the functional regions, so that the bending resistance and impact resistance of the protective case are improved to a large extent, the impact force generated when the mobile terminal falls is effectively dispersed and absorbed, and the mobile terminal is prevented from being broken. It should be noted that the functional area of the connecting portion 144 of the side frame 140 refers to an area where a functional hole 146 is formed or a functional key 147 is formed, where the functional hole 146 includes a charging hole, a sound hole, an earphone hole, and the like, and the functional key 147 includes a switch key, a volume adjustment key, and the like.

In addition, it should be noted that, in the use process of the mobile terminal, the lower edge is generally easy to collide, and it is understood that, in other embodiments, the inner frame 200 and the outer frame 300 may be correspondingly embedded only in the four arc portions 145 of the side frame 140. In addition, in other embodiments, the side frame 140 of the protective shell may be integrally arc-shaped, and at this time, the inner frame 200 and the outer frame 300 need to be correspondingly embedded in the entire circumference of the side frame 140, so as to improve the scratch-resistant, bending-resistant, and impact-resistant properties of the protective shell.

As shown in fig. 3, the outer frame 300 includes a platform part 310 and an inclined part 320 in the thickness direction of the protective case, the platform part 310 is located at the bottom part 130, the inclined part 320 is located at the transition part 120, and the angle between the inclined part 320 and the reverse extension line of the platform part 310 is α, 0 ° < α < 90 °. It is understood that in other embodiments, the inclined portion 320 may not be limited to being located at the transition portion 120, and a portion of the inclined portion 320 may extend upward to the side portion 110. In addition, as shown in fig. 1 and 3, the side frame 140 and the rear cover 150 are made of different materials; the side frame 140 comprises a frame part 141, an edge part 142 and a hollow part 143, wherein the frame part 141 is located at the side part 110, the edge part 142 is located at the bottom part 130, and the hollow part 143 is arranged at a position, close to the transition part 120, of the side frame 140 corresponding to the transition part 120 and the bottom part 130; the rear cover 150 includes a first plane part 151, a second plane part 152, and a curved part 153, which are connected in sequence, the first plane part 151 and the second plane part 152 are disposed at the bottom 130, and the curved part 153 is located in the hollow part 143.

As shown in fig. 3, the side frames 140, the rear cover 150, and the inner frame 200 are made of three different materials, the side frames 140 are made of a first material, the rear cover 150 is made of a second material, and the inner frame 200 is made of a third material; the first material has an elasticity greater than the second material, and the third material has an elasticity greater than the first material. In a specific embodiment, the rear cover 150 is made of PC plastic with better transparency and mechanical properties, the side frames 140 are made of TPU soft rubber material to increase the impact resistance and the buffering capacity at the corners of the protective shell, and the inner frame 200 is made of TPE soft rubber material with better elasticity and softer properties. And the rear cover 150 is combined with the side frame 140 through an insert-injection process to improve the mechanical strength of the combination of the two. It is understood that the present invention is not limited to the side frame 140 and the rear cover 150, and in other embodiments, the side frame 140 and the rear cover 150 may be made of polyurethane, rubber elastomer, or other materials.

It should be noted that the insert molding here refers to in-mold secondary injection molding, that is, the back cover 150 is first injection molded, then the back cover 150 is placed in the molding mold cavity of the side frame 140, and then the side frame 140 material melted at high temperature is injected, so that the back cover 150 and the side frame 140 are combined at high temperature; alternatively, the side frame 140 is first injection molded, and then the side frame 140 is placed in a molding mold cavity of the back cover 150, and then the back cover 150 material melted at high temperature is injected, so that the back cover 150 and the side frame 140 are combined at high temperature. In addition, as shown in fig. 3, the second flat portion 152 is disposed on a side of the edge portion 142 close to the accommodating cavity 180, and the edge portion 142 protrudes from the first flat portion 151 in a direction away from the accommodating cavity 180, so that when the mobile terminal falls, the protruding edge portion 142 with good elasticity touches the ground before the rear cover 150 at the moment of touching the ground at the corner, thereby effectively dispersing and absorbing the impact force of the falling mobile terminal and preventing the mobile terminal from being broken.

In addition, as shown in fig. 3, a part of the second groove 160 is opened at a side of the frame portion 141 close to the accommodating cavity 180, and another part of the second groove 160 is opened at a side of the bending portion 153 close to the accommodating cavity 180; the inner frame 200 is coupled to the frame portion 141 and the bent portion 153 in the second groove 160 through an insert-molding process, so that the mechanical strength of the coupling portion can be improved. The inner frame 200 includes a first portion 210, a second portion 220, and a third portion 230 connected in sequence along the thickness direction of the protective shell, where the first portion 210 is located at the side portion 110, the second portion 220 is located at the transition portion 120, and the third portion 230 is located at the bottom portion 130. As shown in fig. 3, the curved portion 153 of the rear cover 150, the frame portion 141 and the rim portion 142 of the side frame 140 together enclose a first groove 170, and the outer frame 300 is coupled to the curved portion 153 in the first groove 170. The outer frame 300 is combined with the bending part 153 through an insert molding process or a dispensing process. The outer frame 300 includes a platform part 310 and an inclined part 320 in a thickness direction of the protective case, the platform part 310 being located at the bottom part 130, and the inclined part 320 being located at the transition part 120. Thus, the inner frame 200 and the outer frame 300 are partially projected on the transition portion 120 and the bottom portion 130, so that the transition portion 120 and the bottom portion 130 can form triple protection at positions close to the transition portion 120. The first protection is the outer frame 300 located at the outside, the second protection is the bent portion 153 of the rear cover 150 located at the middle, and the third protection is the inner frame 200 located at the inner side, so that the impact force generated when the mobile terminal falls can be effectively dispersed and absorbed, and the mobile terminal can be prevented from being broken and damaged.

In addition, in the embodiment shown in fig. 3, the bent portion 153 of the rear cover 150 is disposed in the hollow portion 143 by forming the hollow portion 143 at the side frame 140 corresponding to the transition portion 120 and the bottom portion 130 near the transition portion 120, and the outer frame 300 is combined with the bent portion 153 in the first groove 170. Since the bending portion 153 is made of a material having poor elasticity and is not easily deformed, the outer frame 300 is combined with the bending portion 153 in the first groove 170, and a combination surface of the outer frame 300 and the bending portion 153 is not easily deformed, so that the combination strength of the outer frame 300 and the main body 100 can be improved.

In addition, as shown in fig. 1 and 3, a surface of the inner frame 200 near the receiving cavity 180 is uneven, so that a shock-absorbing air bag 240 can be formed between the inner frame and the outer surface of the mobile terminal. The shock-absorbing air bag 240 forms a fourth protection, which can more effectively disperse and absorb the impact force of the falling mobile terminal, and prevent the mobile terminal from being broken and damaged.

It should be noted that, in the embodiment shown in fig. 3, the side frame 140 and the rear cover 150 of the main body 100 are made of two materials having different elasticity. It is understood that in other embodiments, as shown in FIG. 4. The side frames 140 and the rear cover 150 of the main body 100 may also be made of the same material, for example, the side frames 140 and the rear cover 150 of the main body 100 may be made of PC plastic. A second groove 160 is formed in one side of the main body 100 close to the accommodating cavity 180, a first groove 170 is formed in one side of the main body away from the accommodating cavity 180, the inner frame 200 is embedded in the second groove 160, and the outer frame 300 is embedded in the first groove 170; the inner frame 200 and the outer frame 300 have partial projections on the transition portion 120 and the bottom portion 130, so that triple protection can be formed at positions of the transition portion 120 and the bottom portion 130 close to the transition portion 120, wherein the first triple protection is the outer frame 300 located at the outside, the second triple protection is the main body 100 material located in the middle, and the third triple protection is the inner frame 200 located at the inner side, so that the impact force generated when the mobile terminal falls can be effectively dispersed and absorbed, and the mobile terminal is prevented from being broken and damaged.

In addition, in the embodiment shown in fig. 3 and 4, the protective casing includes an inner frame 200, a second groove 160 is formed on one side of the main body 100 close to the accommodating cavity 180, and the inner frame 200 is embedded in the second groove 160. It can be understood that, in other embodiments, the second groove 160 and the inner frame 200 may not be provided in the protective shell, the first groove 170 is only provided on one side of the main body 100 away from the accommodating cavity 180, the outer frame 300 is embedded in the first groove 170, the outer frame 300 includes a platform portion 310 and an inclined portion 320 in the thickness direction of the protective shell, the platform portion 310 is located at the bottom portion 130, and at least a portion of the inclined portion 320 is located at the transition portion 120, so that the transition portion 120 and the bottom portion 130 can form double protection at positions close to the transition portion 120, where the first protection is the outer frame 300 located at the outside, and the second protection is located in the material of the main body 100. It is found through a large amount of mobile terminal drop simulation experiments, and mobile terminal is when falling, and the regional impact force that receives of transition portion 120 and the bottom 130 that is close to transition portion 120 of main part 100 bight is great, the utility model discloses a mobile terminal protective housing is through forming dual protection in above-mentioned two regions to can disperse the impact force that absorbs mobile terminal and drop effectively, prevent that mobile terminal from being broken and damaged.

The utility model discloses a mobile terminal protective housing, through the reasonable shape that sets up main part 100, and the position and the shape of first recess 170 and outline 300, set up first recess 170 in the bight position of main part 100 at least, and set up first recess 170 in the one side that main part 100 deviates from holding chamber 180, outline 300 inlays in first recess 170, outline 300 includes platform portion 310 and rake 320 on the thickness direction of protective housing, platform portion 310 is located bottom 130, at least partial rake 320 is located transition portion 120, make transition portion 120 and bottom 130 all can form the duplicate protection near the position of transition portion 120, thereby can disperse the impact force that absorbs mobile terminal and fall down effectively, prevent that mobile terminal from being broken and damaged.

In addition, since the outer frame 300 is made of a metal material, in some embodiments, the outer frame 300 may be colored in different colors by anodizing, electroplating, or the like, so as to meet the color requirement of the frame of the user. In addition, in some embodiments, different textures can be engraved on the outer frame 300 through a CNC (computerized numerical control) process, so that the protective shell is more textured while being antiskid.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (11)

1. A mobile terminal protective case, comprising:

the mobile terminal comprises a main body, a shell and a cover, wherein the main body comprises sequential side edge parts, transition parts and a bottom part in the thickness direction of the shell, the side edge parts and the transition parts surround the outer edge of the bottom part, the transition parts are located between the side edge parts and the bottom part, and the side edge parts, the bottom part and the transition parts jointly surround to form an accommodating cavity for accommodating the mobile terminal; along the circumferential direction of the protective shell, at least the corner part of the main body is provided with a first groove, and the first groove is arranged on one side of the main body, which is far away from the accommodating cavity; and

the outline is made by metal material, the outline is inlayed in first recess, the outline includes platform portion and rake on the thickness direction of protective housing, platform portion is located the bottom, at least part the rake is located transition portion, the contained angle between the reverse extension line of rake and platform portion is alpha, and 0 is < alpha < 90.

2. The protective case of claim 1, further comprising an inner rim made of a soft material; at least the corner of the main body is provided with a second groove along the circumferential direction of the protective shell, the second groove is arranged on one side of the main body close to the accommodating cavity, and the inner frame is embedded in the second groove; the inner frame and the outer frame are partially projected on the transition part and the bottom part, so that triple protection can be formed at the positions of the transition part and the bottom part, which are close to the transition part.

3. The protective case of claim 2, wherein the main body comprises a side frame and a rear cover, the side frame and the rear cover being made of different materials; the side frame comprises a frame part and an edge part, the frame part is positioned on the side edge part, the edge part is positioned on the bottom part, and a hollow part is arranged at the position, corresponding to the transition part and the bottom part, of the side frame, close to the transition part; the rear cover comprises a first plane part, a second plane part and a bending part which are connected in sequence, the first plane part and the second plane part are arranged at the bottom, and the bending part is filled in the hollow part.

4. The protective case of claim 3, wherein the rear cover is combined with the side frame through an insert molding process; the second plane portion is arranged on one side, close to the accommodating cavity, of the edge portion, and the edge portion protrudes out of the first plane portion in the direction departing from the accommodating cavity.

5. The protective case of claim 3, wherein a portion of the second groove opens at a side of the frame portion near the receiving cavity, and another portion of the second groove opens at a side of the bending portion near the receiving cavity; the inner frame is combined with the frame part and the bending part through an embedding and injecting process.

6. The protective case of claim 3, wherein the curved portion of the rear cover and the frame portion and the edge portion of the side frame jointly enclose the first groove, and the outer frame is combined with the curved portion in the first groove.

7. The protective case of claim 6, wherein the outer frame is combined with the bending portion through an insert molding process or a dispensing process.

8. The protective case of claim 3, wherein the side frames are made of a first material, the back cover is made of a second material, and the inner rim is made of a third material; the first material has an elasticity greater than the second material, and the third material has an elasticity greater than the first material.

9. The protective case of claim 2, wherein the inner frame comprises a first portion, a second portion and a third portion connected in sequence along a thickness direction of the protective case, the first portion is located at the side portion, the second portion is located at the transition portion, and the third portion is located at the bottom.

10. The protective case of claim 2, wherein a side surface of the inner frame adjacent to the receiving cavity is uneven to form a shock-absorbing air bag with an outer surface of the mobile terminal.

11. The protective case of claim 1, wherein the main body comprises a side frame and a back cover, the side frame and the back cover being made of the same material.

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