Electronic device protective case

Abstract

An embodiment of the present application discloses an electronic device protective cover; the electronic device protective cover includes a protective cover body and an energy conversion component; wherein, at least a part of the protective cover body is a shape memory structure; the energy conversion component is connected to the shape memory structure; in the case where the electronic device is in a falling state, the energy conversion component can generate electrical energy or heat energy to drive the protective cover body to change from a first shape to a second shape; along the thickness direction of the electronic device, the thickness of the protective cover body in the second shape is greater than that in the first shape.

Description

Technical Field

[0001] This application belongs to the technical field of communication devices, and particularly relates to a protective cover for an electronic device. Background Art

[0002] With the rapid development of electronic technology, more and more people use intelligent electronic devices. Taking a smart phone as an example, the display screen on it mostly adopts a bonding design, and there are few protective measures for the display screen. The display screen on an electronic device is usually made of brittle glass material, and its production cost is relatively high. Once it falls and is stabbed by a sharp object, it is very easy to crack due to stress concentration, which requires replacing the display screen, causing a large economic loss. Therefore, it is very necessary to protect the display screen of an electronic device.

[0003] In related technologies, a protective cover is usually used to protect an electronic device, such as a mobile phone protective cover. Currently, there are mainly four structures for common protective covers: a soft rubber structure, a metal and soft rubber combined structure, a plastic and soft rubber combined structure, and a hard rubber structure. The soft rubber structure and the plastic and soft rubber combined structure have poor buffering ability and cannot provide good protection for the display screen. The problems with the metal and soft rubber combined structure and the hard rubber structure are that disassembly and assembly are relatively laborious, and it is also possible to damage the display screen or the body during multiple disassembly and assembly processes. Summary of the Invention

[0004] This application aims to provide a protective cover for an electronic device to solve the problem that the existing protective cover cannot effectively protect the display screen of the electronic device.

[0005] An embodiment of this application provides a protective cover for an electronic device. The protective cover for the electronic device includes:

[0006] A protective cover body, at least part of which is a shape memory structure;

[0007] An energy conversion component, which is connected to the shape memory structure;

[0008] When the electronic device is in a falling state, the energy conversion component can generate electric energy or heat energy to drive the protective cover body to change from a first shape to a second shape;

[0009] Along the thickness direction of the electronic device, the thickness of the protective cover body in the second shape is greater than that in the first shape.

[0010] In an embodiment of the present application, an effective protection solution is provided for an electronic device, especially the display screen thereon. When the electronic device protective cover is sleeved on the outside of the electronic device, once the electronic device drops, the electronic device protective cover can instantly thicken, and the display screen can be fully wrapped by the inflated protective airbag, effectively protecting the display screen of the electronic device; the solution provided by the embodiment of the present application improves the ability and effect of protecting the electronic device.

[0011] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0013] Figure 1 is a schematic structural diagram of an electronic device protective cover in a first shape according to an embodiment of the present application;

[0014] Figure 2 is Figure 1 the sectional view taken along A-A and the partial enlarged schematic diagram in

[0015] Figure 3 is a schematic structural diagram of an electronic device protective cover in a second shape according to an embodiment of the present application;

[0016] Figure 4 is Figure 3 the sectional view taken along B-B in

[0017] Figure 5 is one of the schematic structural diagrams of an electronic device protective cover according to an embodiment of the present application;

[0018] Figure 6 is Figure 5 the sectional view taken along C-C in

[0019] Figure 7 is another schematic structural diagram of an electronic device protective cover according to an embodiment of the present application;

[0020] Figure 8 is a schematic structural diagram of an energy conversion component according to an embodiment of the present application;

[0021] Figure 9 is an exploded schematic structural diagram of an electronic device protective cover according to an embodiment of the present application;

[0022] Figure 10 is one of the schematic diagrams of an electronic device protective cover applied to an electronic device according to an embodiment of the present application;

[0023] Figure 11 It is the second schematic diagram of the application of the electronic device protective case provided by the embodiments of the present application to an electronic device.

[0024] Reference numerals:

[0025] 1. Protective case body; 11. Side frame part; 12. Base; 101. First shape; 102. Second shape; 103. Airbag; 104. Cavity; 2. Energy conversion component; 21. Substrate; 22. Power supply part; 23. Trigger device; 3. Cover shell; 31. Opening part; 32. Cover body; 4. Electronic device; 41. Device housing; 42. Display screen; 43. Main board component; 431. Main board; 432. Processor; 433. Sensor; 434. Second induction chip; 5. First induction chip; 6. Ground; 7. Sand grains. Detailed implementation manners

[0026] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0027] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0029] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0030] The following will combine Figures 1 to 11 , and through specific embodiments and their application scenarios, the electronic device protective cover provided by the embodiments of the present application will be described in detail.

[0031] According to an embodiment of the present application, an electronic device protective cover is provided. When the electronic device protective cover is in use, it can be sleeved outside the electronic device, and can play a good protective role for the electronic device, especially the display screen on the electronic device, when the electronic device drops.

[0032] The electronic device protective cover provided by the embodiments of the present application, see Figures 1 to 7 , the electronic device protective cover includes a protective cover body 1, and at least part of the protective cover body 1 is a shape memory structure. The electronic device protective cover further includes an energy conversion component 2, and the energy conversion component 2 is connected to the shape memory structure. In the case where the electronic device 4 is in a dropped state, the energy conversion component 2 can generate electrical energy or heat energy to drive the protective cover body 1 to change from a first shape 101 to a second shape 102; along the thickness direction of the electronic device 4, the thickness of the protective cover body 1 in the second shape 102 is greater than that in the first shape 101.

[0033] That is to say, the embodiments of the present application provide a solution for the protective cover of an electronic device, and at least part of the protective cover adopts a shape memory structure. When it is determined that the electronic device 4 drops, the protective cover body 1 can undergo an instantaneous chain deformation based on the shape memory structure provided thereon and become an inflated protective airbag, so as to effectively protect the electronic device 4 and its display screen 42 from being cracked by sharp objects.

[0034] The electronic device protective cover provided by the embodiments of the present application can be sleeved outside the electronic device during application, and its disassembly and assembly are relatively convenient. The electronic device protective cover can play a very good protective role for the electronic device, especially the display screen thereon.

[0035] For example, the entire protective cover body 1 is set as a shape memory structure. In this way, when the electronic device 4 drops, the entire protective cover body 1 will deform to change from the first shape 101 to the second shape 102, see Figures 1 to 4 .

[0036] For another example, only the side frame portion 11 of the protective cover body 1 is set as a shape memory structure. Two opposite long sides of the side frame portion 11 are set as shape memory structures. Or, all four sides of the side frame portion 11 are set as shape memory structures. Those skilled in the art can flexibly set according to specific needs, and the embodiments of the present application do not make specific limitations here.

[0037] In the embodiments of the present application, an effective protection solution is provided for the electronic device. When the electronic device protective cover is sleeved on the outside of the electronic device, once the electronic device drops, the shape memory structure in the protective cover body 1 can instantaneously deform, increasing the thickness of the electronic device protective cover to protect the display screen of the electronic device. For example, it becomes an inflated protective airbag to wrap the display screen of the electronic device, so as to effectively protect the electronic device and the display screen thereon.

[0038] See Figure 10 , when the electronic device drops, the shape protection structure in the protective cover body 1 can instantaneously change from the first shape 101 to the second shape 102, see Figure 2 and Figure 4 . In the second shape 102, along the thickness direction of the electronic device 4, the thickness of the protective cover body 1 is significantly greater than the height of the display screen 42 of the electronic device 4 by a large margin. For example, the protective cover body 1 protrudes about 0.6 mm to 0.85 mm above the display screen 42. And the thickness of the protective cover body 1 in the second shape 102 is greater than its thickness in the first shape 101. This design is beneficial for effectively protecting the display screen 42 by using the instantaneous increase in thickness of the protective cover body 1 after the electronic device 4 drops to the ground 6.

[0039] Please continue to see Figure 10 , there are sand grains 7 or impurities with relatively high hardness on the ground 6. These substances may have many sharp edges and corners. Once they touch the display screen 42 of the electronic device 4, since the display screen 42 is made of brittle materials such as glass, it is very easy to crack due to stress concentration. For the electronic device protective cover provided by the embodiments of the present application, the thickness after the deformation of the protective cover body 1 can well protect the display screen 42.

[0040] When the protective cover body 1 is in the first shape 101 as shown in Figure 2 , the protective cover body 1 itself has a cavity 104, and the space of this cavity 104 is relatively small. During the process of the electronic device 4 dropping, due to the stimulation of the shape memory structure on the protective cover body 1, the protective cover body 1 can quickly change into the one as shown in Figure 4In the second shape shown, the space in the cavity 104 of the protective cover body 1 becomes larger, so that the thickness of the protective cover body 1 is significantly increased. Even if the electronic device falls onto the ground 6, the sand 7 on the ground 6 cannot contact the display screen 42, thereby effectively protecting the display screen 42. Figure 10 .

[0041] It can be understood that, in the embodiment of the present application, the first shape 101 is the initial shape of the protective cover body 1, see Figure 1 The protective cover body 1 can effectively protect the electronic device in normal use. The second shape 102 is a deformed shape of the protective cover body 1. When the electronic device falls, the space of the inner cavity 104 of the protective cover body 1 can quickly expand to become a protective airbag. Figure 3 and Figure 5 .

[0042] In the embodiment of the present application, the energy conversion component 2 is mainly used to generate electrical energy or thermal energy, both of which can be used to stimulate the shape memory structure to deform, so that the protective cover body 1 is transformed from the first shape 101 to the second shape 102. This design provides more stimulation methods for the transformation of the protective cover body 1 from the initial state to the deformed state, making the triggering methods for promoting the deformation of the protective cover body 1 more diverse.

[0043] In some examples of this application, see Figure 7 and Figure 8 The energy conversion component 2 includes a substrate 21, and a power supply 22 and a trigger device 23 arranged on the substrate 21; the induction signal generated when the electronic device is in a falling state can drive the power supply 22 to control the trigger device 23 to generate electrical energy or thermal energy.

[0044] The substrate 21 is used to carry the power supply 22 and the trigger device 23 , and also facilitates the assembly of the energy conversion component 2 on the protective cover body 1 .

[0045] The power supply 22 is, for example, a coin-shaped battery, which can be used to provide a large current to the trigger device 23. After receiving the large current provided by the power supply 22, the trigger device 23 can quickly drive the protective cover body 1 to change from the first shape 101 to the second shape 102.

[0046] It can be understood that when the electronic device 4 drops, an induction signal can be generated, and this induction signal can be used as a trigger condition to drive the energy conversion component 2 to generate electric energy or heat energy. After the power supply member 22 is powered on (or receives an electrical signal), it can drive the trigger device 23 to instantaneously generate high temperature to form heat energy, or drive the trigger device 23 to conduct electricity. By any one of these two methods, the protective cover body 1 can be stimulated to change from the first shape 101 to the second shape 102 to protect the electronic device 4 sleeved in the protective cover body 1.

[0047] Wherein, the trigger device 23 is designed to be in contact with the shape memory structure, for example, so as to trigger the deformation of the shape memory structure.

[0048] In some examples of the present application, referring to Figure 8 , the power supply member 22 and the trigger device 23 are respectively arranged on two opposite surfaces of the substrate 21.

[0049] In the embodiment of the present application, the power supply member 22 and the trigger device 23 are separated and arranged. This is because the trigger device 23 will generate high temperature. If the two are arranged on the same side, the high temperature may damage the power supply member 22 and other devices (such as an induction chip, etc.). Moreover, it will not make the planar size of the substrate 21 too large, which is beneficial to the overall structural compactness of the protective cover body 1.

[0050] In some examples of the present application, the trigger device 23 is set as a resistor. When the electronic device 4 drops, the power supply member 22 can provide current for the resistor to control the resistor to generate heat energy, so that the protective cover body 1 changes from the first shape 101 to the second shape 102.

[0051] Wherein, the resistor has the performance that it can instantaneously generate high temperature after being powered on to form a heat source. When the resistor is powered on by the coin-shaped battery (i.e., the power supply member 22), the instantaneous temperature of the resistor can reach above 180 °C, and the shape memory structure instantaneously undergoes a chain reaction after being stimulated by high temperature and can instantaneously expand to form a protective airbag, thereby effectively protecting the electronic device, especially protecting the display screen 42 of the electronic device 4.

[0052] In some examples of the present application, the trigger device 23 is set as a capacitor. The capacitor is connected to or in contact with the protective cover body 1. When the electronic device 4 drops, the power supply member 22 provides current for the capacitor to control the capacitor to conduct electricity, so that the protective cover body 1 changes from the first shape 101 to the second shape 102.

[0053] When the trigger device 23 is set as a capacitor, the surface of the capacitor can conduct electricity. After the capacitor is powered on by the coin-shaped battery (i.e., the power supply member 22), the surface of the capacitor can conduct electricity and conduct the current to the shape memory structure. After being stimulated by the current, the shape memory structure instantaneously undergoes a chain reaction, can instantaneously expand, and its volume rapidly increases to form a protective airbag, that is, it becomes a deformed state, thereby effectively protecting the electronic device 4, especially protecting the display screen 42 of the electronic device 4.

[0054] In some examples of the present application, referring to Figures 1 to 7 , a housing 3 is provided outside the energy conversion component 2, and an opening 31 is provided on the housing 3;

[0055] Referring to Figure 3 and Figure 4 , the shape memory structure is an airbag 103 made of a shape memory polymer material; the opening 31 is communicated with the airbag 103, and the opening 31 can be used to inflate the airbag 103.

[0056] Among them, the housing 3 is sleeved outside the energy conversion component 2, which can play a good protective role for the energy conversion component 2.

[0057] The housing 3 is connected to the protective cover body 1 to form an integrated structure, which can make the appearance more beautiful and have good integrity.

[0058] In order to realize the deformed state of the shape memory structure, that is, the deformed state of the airbag, a blow molding method needs to be adopted. In the embodiment of the present application, it is designed that the opening 31 is provided on the housing 3, and the opening 31 is communicated with the airbag 103, which can be used to inflate the airbag 103.

[0059] When the airbag 103 is stimulated in the initial state, air is quickly and actively sucked into the airbag 103 from the opening 31, and the volume of the airbag 103 will rapidly expand. In this way, the protective cover body 1 is transformed into the second shape 102.

[0060] The housing 3, referring to Figure 2 and Figure 4 shown, are respectively cross-sectional schematic diagrams of the airbag 103 in the first shape 101 and the second shape 102. Referring to Figure 2 , it is a hollow structure in the first shape, but the gap is actually very small. Referring to Figure 4 , and after the airbag 103 becomes the second shape 102, the hollow area significantly increases, just like the volume expansion after the protective airbag is inflated, which can better protect the electronic device.

[0061] In some examples of the present application, the housing 3 includes a housing body and a cover 32. A receiving space is formed inside the housing body for receiving the energy conversion component 2. An opening is provided on the housing body, and the cover 32 is covered on the opening.

[0062] The cover 32 is detachable, which facilitates the inspection and maintenance of the internal energy conversion component 2.

[0063] In some examples of the present application, referring to Figures 1 to 7 , the protective cover body 1 includes a side frame portion 11 and a base 12. The side frame portion 11 is disposed on the edge of the base 12. The side frame portion 11 and the base 12 enclose a receiving space for receiving an electronic device. Moreover, both the side frame portion 11 and the base 12 are provided as the shape memory structure.

[0064] The side frame portion 11 includes a plurality of corner portions, and the energy conversion component 2 is disposed on the corner portions.

[0065] That is to say, the overall design of the protective cover body 1 is a shape memory structure.

[0066] Both the side frame portion 11 and the base 12 are air bags 103 made of shape memory material. After changing from the first shape 101 to the second shape 102, it can play a good protective role for both the display screen and the body of the electronic device. Such a design can better protect the electronic device.

[0067] In the embodiments of the present application, the energy conversion component 2 is designed to be disposed at the corner portions of the protective cover body 1. For example, referring to Figures 1 to 5 , one energy conversion component 2 is disposed at each of the two corner portions at the top of the protective cover body 1, and the housing 3 is sleeved outside each energy conversion component 2, forming a left-right symmetric arrangement. This design will not affect the user's operation of the electronic device and has a relatively beautiful appearance.

[0068] It should be noted that those skilled in the art can flexibly adjust the setting quantity of the energy conversion component 2 according to specific needs, and the embodiments of the present application do not make specific limitations here.

[0069] In some examples of the present application, the material of the shape memory structure is a thermally induced shape memory material. The thermally induced shape memory material includes a shape memory polyurethane material. The shape memory polyurethane material includes a soft segment and a hard segment. The hard segment includes a diisocyanate and a chain extender. The soft segment includes a polyester polyol or a polyether polyol. The molecular weight of the soft segment and the molecular weight of the hard segment are set to 1:1 to 5:1.

[0070] Alternatively, the shape memory structure is made of electro-responsive shape memory material, which is a composite material formed by mixing a thermo-responsive shape material and a conductive material.

[0071] In an embodiment of the present application, the shape memory structure may be made of a thermo-responsive shape memory polymer material (thermo-responsive SMP). When the shape memory structure adopts a thermo-responsive SMP material, the energy conversion component 2 is arranged to generate high temperature, for example, and the high temperature can form heat energy to drive the shape memory structure to deform, that is, the volume becomes larger to form an inflated airbag.

[0072] For example, the shape memory structure has a first memory temperature (e.g., 165 °C to 175 °C); when the temperature of the shape memory structure is lower than the first memory temperature, the shape memory structure has the first shape 101; when the temperature of the shape memory structure is higher than the first memory temperature, the shape memory structure has the second shape 102.

[0073] It should be noted that if the shape memory structure adopts a thermo-responsive shape memory polymer material (thermo-responsive SMP). When the thermo-responsive shape memory polymer material is heated and the temperature continues to rise, under high pressure, the thermo-responsive shape memory polymer material can be softened into the final required shape, that is, the second shape. In order to maintain the final required shape, the thermo-responsive shape polymer material can be cooled, and finally the shape of the thermo-responsive shape polymer material is fixed and becomes the deformed state of the thermo-responsive shape polymer material. In order to restore the deformed state of the thermo-responsive shape polymer material to the initial state, the thermo-responsive shape polymer material needs to be heated again. When heated to the phase transition critical point, the thermo-responsive shape polymer material returns to the initial state, that is, the first shape, and remains in the first shape after cooling and solidification.

[0074] In an embodiment of the present application, the thermo-responsive shape memory material includes a shape memory polyurethane material composed of soft segments and hard segments. The hard segments are mainly composed of diisocyanates and chain extenders, so the stiffness is relatively large, which inhibits the plastic slip of the macromolecular chains during the deformation process of the material; the soft segments are mainly composed of linear molecules such as polyester polyols or polyether polyols, so they can undergo large deformations. Generally, when the temperature increases above the transition temperature of the soft segments, the shape memory polyurethane material is in a highly elastic state, and the intensified microscopic Brownian motion of the soft segments makes the material easy to deform. At this time, since the hard segments are still in the glassy state, molecular chain slip is prevented while an internal resilience force is generated; when the temperature increases from the cooled temperature above the transition temperature of the soft segments, the stress stored in the hard segments is released, resulting in the material being able to return to the initial deformation. However, not all polyurethanes have a shape memory effect. Only when the ratio of the molecular weight of the soft segments to the molecular weight of the hard segments is controlled within the range of 1:1 to 5:1, does the polyurethane have a shape memory effect.

[0075] In an embodiment of the present application, the material of the shape memory structure may also be an electro-responsive shape memory polymer material (electro-responsive SMP). When the shape memory structure uses an electro-responsive SMP material, the energy conversion component 2 is configured to be able to generate electric energy to drive the shape memory structure to deform, that is, the volume becomes larger to form an inflated airbag.

[0076] The shape memory structure uses an electro-responsive shape memory polymer material (electro-responsive SMP), which is a composite material obtained by mixing a thermo-responsive shape memory polymer material with a substance having electrical conductivity (such as conductive carbon black, metal powder, and conductive polymer). When the electro-responsive shape memory polymer material is energized, the airbag made of this material can immediately expand and deform, and its volume will rapidly increase.

[0077] The embodiment of the present application provides a shape memory protective sleeve, which is a type of polymer material obtained by molecular combination and modification of general polymer materials by applying the theory of polymer physics and polymer synthesis and modification techniques. For example, by performing molecular design and adjustment of the molecular structure of polymer materials such as polyurethane, they are given a certain shape (i.e., the initial state) under certain conditions. When the external conditions change, the shape can be correspondingly changed and fixed (i.e., the deformed state). If the external environment changes again in a specific manner and pattern, they can reversibly return to the initial state. In this way, the cycle of "memory of the initial state - fixation of the deformed state - restoration of the initial state" is completed.

[0078] In some examples of the present application, the electronic device protective sleeve further includes a first induction chip 5. The first induction chip 5 is disposed inside the protective sleeve body 1, and the first induction chip 5 is used to obtain the signal when the sub-device drops.

[0079] That is to say, in the embodiment of the present application, a receiving chip for receiving the electronic device drop signal is disposed inside the protective sleeve body 1, that is, the first induction chip 5. After the first induction chip 5 receives the induction signal sent after the electronic device drops, the power supply member 22 is energized to provide a large current to the triggering device 23. The triggering device 23 can generate electric energy or heat energy. On this basis, the shape memory structure uses a thermo-responsive shape memory material or an electro-responsive shape memory material.

[0080] Under the stimulation of heat energy, the shape memory structure made of a thermo-responsive shape memory material can increase in volume to form a protective airbag. Under the stimulation of electric energy, the shape memory structure made of an electro-responsive shape memory material can increase in volume to form a protective airbag.

[0081] In some examples of the present application, see Figures 8 to 11, the protective cover body 1 is sleeved outside the electronic device 4; a second induction chip 434 is arranged inside the electronic device 4, and the second induction chip 434 is used for detecting the falling state of the electronic device and sending the generated induction signal to the first induction chip 5; the first induction chip 5 receives the induction signal sent by the second induction chip 434 and controls the energy conversion component 2 to generate electric energy or heat energy;

[0082] The first induction chip 5 is arranged on the substrate 21 and is on the same side as the power supply component 22.

[0083] In an embodiment of the present application, the first induction chip 5 is arranged inside the energy conversion component 2. Specifically, the first induction chip 5 is arranged on the substrate 21 and is on the same side as the power supply component 22, and is separated from the triggering device 23. This is to prevent the triggering device 23 from affecting the first induction chip 5 due to the generation of high temperature. For example, the high temperature may damage the first induction chip 5.

[0084] Further, referring to Figures 8 to 11 , the electronic device 4 further includes a device housing 41, a display screen 42, and a main board assembly 43; the display screen 42 is arranged on the device housing 41 and encloses a receiving cavity with the device housing 41; the main board assembly 43 is arranged in the receiving cavity, and the main board assembly 43 includes a main board 431, and a processor (such as a CPU) 432, a sensor 433, and a second induction chip 434 arranged on the main board 431.

[0085] Among them, the sensor 433, such as a gyroscope or a gravity sensor, is used for obtaining signals when the electronic device 4 falls. After the sensor 433 obtains the signals when the electronic device 4 falls, the second induction chip 434 transmits the signals to the first induction chip 5.

[0086] For example, a second induction chip 434 is provided in the electronic device 4. The second induction chip 434 is, for example, set as a signal transmitting chip, and the first induction chip 5 in the protective cover body 1 is set as a signal receiving induction chip. A gravity sensor is generally provided on the main board 431 in the electronic device 4. When the gravity sensor on the main board 431 senses a sharp change in the gravitational acceleration of the electronic device 4, it quickly transmits the signal to the processor 432 on the main board 431. The processor 432 quickly issues an instruction to the second induction chip 434. The second induction chip 434 sends the signal to the first induction chip 5. After receiving the signal, the first induction chip 5 will immediately issue an instruction to make the power supply member 22 (coin-shaped battery) provide a large current to the triggering device 23. When the triggering device 23 is a resistor, the large current provided by the power supply member 22 can instantaneously energize the resistor to generate high temperature, so as to drive the shape memory structure made of thermally induced shape memory material to deform. When the triggering device 23 is a capacitor, the large current provided by the power supply member 22 can make the surface of the capacitor conductive, so as to drive the shape memory structure made of electro-induced shape memory material to deform.

[0087] In addition, in some examples of the present application, a sensor and related chips for sensing the drop of the electronic device can be directly provided in the protective cover body 1, so that there is no need to form an electrical connection relationship between the protective cover body 1 and the electronic device.

[0088] When the electronic device drops, the protective cover body 1 can directly detect the induction signal and receive the induction signal through the first induction chip 5. The energy conversion component 2 can generate electrical energy or heat energy to drive the shape memory structure to change its shape under stimulation. In this way, the protective cover body 1 changes from the first shape 101 to the second shape 102 to protect the electronic device.

[0089] It should be noted that the electronic device can be a terminal or other devices outside the terminal. Exemplarily, the electronic device can be, for example, a mobile phone, a tablet computer, a laptop computer, a palmtop computer, an in-vehicle electronic device, a Mobile Internet Device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. It can also be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc. The embodiments of the present application do not make specific limitations here.

[0090] For the electronic device protective case provided by the embodiments of the present application, refer to Figure 10 , which shows a cross-sectional view of the entire electronic device covered by the protective case body 1 in the second shape 102. Among them, the side frame portion 11 and the base 12 of the protective case body 1 are both hollow structures and become the shape of a protective airbag after being inflated. Compared with the first shape 101 of the protective case body 1, its volume becomes very large; it can be seen that the side frame portion 11 can well wrap the display screen 42 of the entire machine, and the side frame portion 11 is much higher than the display screen 42 of the electronic device 4 after deformation, so as to effectively protect the display screen 42. There are various sand grains 7 on the ground 6, and they are relatively sharp. In this way, when the electronic device 4 with the electronic device protective case falls from the air to the ground, since the protective case body 1 is much higher than the display screen 42 of the electronic device 4 in the second shape 102, various sand grains 7 on the ground 6 cannot touch the display screen 42, thus effectively protecting the display screen 42.

[0091] It should be noted that when the protective case body 1 slowly cools in the air in the second shape 102, the volume and shape of the shape memory structure will gradually shrink and finally shrink to the initial state of the shape memory structure. Thus, the electronic device protective case can be reused.

[0092] The electronic device protective cover provided by the embodiment of the present application can be a protective cover made of a thermally induced shape memory material. Specifically, when it senses a rapid change in the gravitational acceleration and / or the Z direction of the electronic device, it quickly transmits the sensing signal to the first sensing chip 5, and the first sensing chip 5 designates the power supply member 22 to emit a large current to the triggering device 23. At this time, the triggering device 23 is a resistor, and the resistor can instantaneously generate high temperature. When the thermally induced shape memory protective cover is locally stimulated by high temperature, it instantaneously undergoes a chain deformation into a protective airbag, thereby effectively protecting the display screen from being cracked by sharp objects, greatly enhancing the ability and effect of protecting the display screen of the electronic device, and improving the user satisfaction.

[0093] The electronic device protective cover provided by the embodiment of the present application can be a protective cover made of an electro-induced shape memory material. Specifically, when it senses a rapid change in the gravitational acceleration and / or the Z direction of the electronic device, it quickly transmits the sensing signal to the first sensing chip 5, and the first sensing chip 5 designates the power supply member 22 to emit a large current to the triggering device 23. At this time, the triggering device 23 is a capacitor, and the surface of the capacitor conducts electricity after being energized. When the electro-induced shape memory protective cover is locally stimulated by current, it instantaneously undergoes a chain deformation into a protective airbag, thereby effectively protecting the display screen from being cracked by sharp objects, greatly enhancing the ability and effect of protecting the display screen of the electronic device, and improving the user satisfaction.

[0094] Other components and operations of the electronic device according to the embodiment of the present application are known to those of ordinary skill in the art and will not be described in detail here.

[0095] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0096] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic device protective cover, characterized in that, it includes: A protective cover body (1), at least part of the protective cover body (1) is a shape memory structure; An energy conversion component (2), the energy conversion component (2) is connected to the shape memory structure; When the electronic device (4) is in a falling state, the energy conversion component (2) can generate electric energy or heat energy to drive the protective cover body (1) to change from a first shape (101) to a second shape (102); Along the thickness direction of the electronic device (4), the thickness of the protective cover body (1) in the second shape (102) is greater than that in the first shape (101); A housing (3) is arranged outside the energy conversion component (2), and an opening (31) is arranged on the housing (3); The shape memory structure is an airbag (103) made of a shape memory polymer material; The opening (31) is communicated with the airbag (103), and the opening (31) can be used to inflate the airbag (103).

2. The electronic device protective cover according to claim 1, characterized in that, The energy conversion component (2) includes a substrate (21), and a power supply component (22) and a triggering device (23) arranged on the substrate (21); The induction signal generated when the electronic device (4) falls can drive the power supply component (22) to control the triggering device (23) to generate electric energy or heat energy.

3. The electronic device protective cover according to claim 2, characterized in that, The power supply component (22) and the triggering device (23) are respectively arranged on two opposite surfaces of the substrate (21).

4. The electronic device protective cover according to claim 2, characterized in that, The triggering device (23) is set as a resistor. When the electronic device (4) falls, the power supply component (22) provides current for the resistor to control the resistor to generate heat energy, so that the protective cover body (1) changes from the first shape (101) to the second shape (102).

5. The electronic device protective cover according to claim 2, characterized in that, The triggering device (23) is set as a capacitor, and the capacitor is connected to or in contact with the protective cover body (1). When the electronic device (4) falls, the power supply component (22) provides current for the capacitor to control the capacitor to conduct electricity, so that the protective cover body (1) changes from the first shape (101) to the second shape (102).

6. The electronic device protective cover according to claim 1, characterized in that, The protective cover body (1) includes a side frame portion (11) and a base (12). The side frame portion (11) is arranged on the edge of the base (12). The side frame portion (11) and the base (12) enclose a receiving space for receiving the electronic device (4); Both the side frame portion (11) and the base (12) are set as the shape memory structure; The side frame portion (11) includes a plurality of corner portions, and the energy conversion component (2) is arranged on the corner portions.

7. The electronic device protective cover according to claim 1, wherein, the material of the shape memory structure is a thermally induced shape memory material; the thermally induced shape memory material includes a shape memory polyurethane material, the shape memory polyurethane material includes a soft segment and a hard segment, the hard segment includes a diisocyanate and a chain extender, the soft segment includes a polyester polyol or a polyether polyol, and the molecular weight of the soft segment and the molecular weight of the hard segment are set to 1:1 to 5:1; or, the material of the shape memory structure is an electro-induced shape memory material, and the electro-induced shape memory material is a composite material formed by mixing a thermally induced shape material and a conductive material.

8. The electronic device protective cover according to claim 2, wherein, it further includes a first induction chip (5), the first induction chip (5) is arranged in the protective cover body (1), and the first induction chip (5) is used for obtaining signals when the electronic device (4) drops.

9. The electronic device protective cover according to claim 8, wherein, the protective cover body (1) is sleeved outside the electronic device (4); a second induction chip (434) is arranged in the electronic device (4), the second induction chip (434) is used for detecting the dropping state of the electronic device (4) and sending the generated induction signal to the first induction chip (5); the first induction chip (5) receives the induction signal sent by the second induction chip (434) and controls the energy conversion component (2) to generate electric energy or heat energy; the first induction chip (5) is arranged on the substrate (21) and is on the same side as the power supply member (22).

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