Protective cases and electronic device components

Abstract

This application provides a protective case and an electronic device assembly, relating to the field of electronic device technology. The protective case includes a housing assembly, a solar cell, a charging / discharging circuit, and an electrochromic structural layer. The housing assembly is used to mount the electronic device. The solar cell is connected to the housing assembly, the charging / discharging circuit is electrically connected to the solar cell, and the electrochromic structural layer is disposed on the light-receiving side of the solar cell and electrically connected to the charging / discharging circuit. The electrochromic structural layer is used to change its light transmittance under the influence of an applied electric field. This facilitates greater diversity in the appearance of protective cases capable of solar charging electronic devices.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and in particular to a protective case and electronic device components. Background Technology

[0002] Users are increasingly focused on protecting their electronic devices, especially portable ones. Protective cases serve as accessories, worn over electronic devices to provide protection. For example, various types of phone cases are available, allowing users to protect their phones from scratches and drops.

[0003] To improve the battery life of electronic devices, protective cases can include solar cells, allowing the devices to be charged using solar energy. However, the appearance of these solar-chargeable protective cases is relatively limited, impacting product competitiveness. Utility Model Content

[0004] This application provides a protective case and an electronic device assembly, enabling the protective case capable of solar charging the electronic device to have diverse appearance effects.

[0005] In a first aspect, embodiments of this application provide a protective shell, which includes a shell assembly, a solar cell, a charging / discharging circuit, and an electrochromic structural layer. The shell assembly is used to mount an electronic device. The solar cell is connected to the shell assembly. The charging / discharging circuit is electrically connected to the solar cell. The electrochromic structural layer is disposed on the light-illuminated side of the solar cell and is electrically connected to the charging / discharging circuit. The electrochromic structural layer is used to change its light transmittance under the influence of an applied electric field.

[0006] The protective casing provided in this application embodiment has an electrochromic structure layer on the light-shielding side of the solar cell. The transmittance of the electrochromic structure layer can be changed through a charging and discharging circuit. When the electrochromic structure layer changes to a high-transmittance mode, sunlight can easily penetrate the electrochromic structure layer and reach the solar cell, enabling photoelectric conversion. When the electrochromic structure layer changes to a low-transmittance mode, it can block the solar cell, making it less visible on the outside of the protective casing. The electrochromic structure layer can also decorate the solar cell, giving the protective casing diverse appearance effects, thereby improving its aesthetics and enhancing product competitiveness.

[0007] In one possible implementation, the projection of the electrochromic structure layer covers the projection of the solar cell along the thickness direction of the solar cell.

[0008] In this implementation, the electrochromic structure layer completely covers the illuminated side of the solar cell, thus shielding the solar cell and preventing it from being exposed and affecting its appearance.

[0009] In one possible implementation, the protective shell further includes a first transparent structural layer disposed on the side of the electrochromic structural layer away from the solar cell.

[0010] In this implementation, the first transparent structural layer is located outside the electrochromic structural layer. The first transparent structural layer can protect the electrochromic structural layer and reduce the risk of the electrochromic structural layer being scratched or damaged by drops. In addition, the first transparent structural layer is a transparent structural layer with good light transmittance so that sunlight can shine on the solar cell.

[0011] In one possible implementation, the protective shell further includes a second transparent structural layer disposed between the electrochromic structural layer and the solar cell.

[0012] In this implementation, the second transparent structural layer is located between the electrochromic structural layer and the solar cell. This second transparent structural layer separates the electrochromic structural layer from the solar cell, preventing mutual interference between them. Furthermore, the second transparent structural layer is transparent and has good light transmittance, facilitating the penetration of light onto the solar cell.

[0013] In one possible implementation, the protective housing also includes a switch. The switch is located on the housing assembly and is electrically connected to the charging / discharging circuit.

[0014] In this implementation, the switch is electrically connected to the charging and discharging circuit. The charging and discharging circuit can be controlled by the switch to control the light transmittance of the electrochromic structure layer. This allows the user to control the light transmittance of the electrochromic structure layer without the need for external devices, making the operation simple and quick.

[0015] In one possible implementation, the protective housing also includes a communication module. The communication module is located in the housing assembly and is electrically connected to the charging and discharging circuit.

[0016] In this implementation, the communication module can receive instructions from the electronic device, enabling the electronic device to control the charging and discharging circuit, thereby controlling the light transmittance of the electrochromic structure layer. This achieves linkage with the electronic device, making operation more convenient.

[0017] In one possible implementation, the electrochromic structure layer has a colored state and a transparent state, and is used to switch between the colored state and the transparent state under the action of an applied electric field. Specifically, the light transmittance of the electrochromic structure layer in the transparent state is greater than or equal to 80%.

[0018] In this implementation, when the electrochromic structure layer is in a colored state, its light transmittance is low, allowing the protective shell to have the same color as the electrochromic structure layer, thus serving a decorative purpose. When the electrochromic structure layer is in a transparent state, its light transmittance is greater than or equal to 80%, allowing sunlight to pass through the electrochromic structure layer and irradiate the solar cell, thereby ensuring the power generation efficiency of the solar cell.

[0019] In one possible implementation, the housing assembly includes a back cover and a flip cover. The back cover is used to mount an electronic device. The back cover includes a first side, and the flip cover is rotatably connected to the first side for covering the surface of the electronic device mounted inside the back cover. Solar cells are disposed on the flip cover.

[0020] In this implementation, a back cover is fitted onto the electronic device, and a flip cover is rotatably connected to the first side of the back cover so that the back cover is positioned over the surface of the electronic device. The protruding camera structure on the electronic device is primarily located on the back, eliminating the need for a large clearance structure on the flip cover. This allows for a larger space for device placement, increasing the area for solar cell installation and improving solar charging efficiency. Furthermore, when the electronic device with the protective case is placed on an external wireless charging device, the solar cells on the flip cover are positioned on the side of the wireless charging module furthest from the external wireless charging device. This reduces the likelihood of the external wireless charging module having difficulty charging the protected electronic device due to the solar cells being positioned between the two devices, facilitating wireless charging of the protected electronic device by the external wireless charging device.

[0021] In one possible implementation, the charging and discharging circuitry is located on the back cover.

[0022] In this implementation, the charging and discharging circuit is located on the back cover to free up the flip-top area and increase the area for the solar cells.

[0023] In one possible implementation, the back cover and the flip cover are detachably connected.

[0024] In this implementation, the back cover and flip cover are detachably connected, allowing users to choose whether or not to install the flip cover based on their needs. When solar charging is not required, users can remove the flip cover, reducing the weight of the protective case and thus improving the user experience.

[0025] In one possible implementation, the charging / discharging circuit is located on the back cover, which also has a first connector. The charging / discharging circuit is electrically connected to the first connector. A second connector is also located on the flip cover, and the solar cell is electrically connected to the second connector. The first and second connectors are detachably connected, and the charging / discharging circuit and the solar cell are electrically connected via the first and second connectors.

[0026] In this implementation, the charging and discharging circuit and the solar cell are detachably electrically connected through the first connector and the second connector, so that users can quickly disassemble and assemble the flip cover and its circuit, making the operation convenient and quick and improving the user experience.

[0027] In one possible implementation, the charge / discharge circuit includes a charge / discharge control circuit, a charging component, and an energy storage battery. The solar cell, electrochromic structure layer, charging component, and energy storage battery are all electrically connected to the charge / discharge control circuit.

[0028] In this implementation, the charge / discharge control circuit electrically connects the solar cells, electrochromic structure layer, charging components, and energy storage battery, achieving mutual cooperation among these components. The energy storage battery enables the protective case to have energy storage capabilities. Even after the electronic device is removed from the protective case, it can still be used for solar energy storage, avoiding the drawback of being unable to use the electronic device while using solar charging. This improves the battery life of electronic devices during outdoor adventures and further enhances the user experience. Furthermore, the protective case can be used independently for solar charging, preventing the electronic device from overheating under sunlight and affecting its operation.

[0029] In one possible implementation, the charging component includes a wireless charging coil. The wireless charging coil is electrically connected to a charge / discharge control circuit.

[0030] In this implementation, the wireless charging coil is compatible with the wireless charging module of the electronic device, enabling the protective case to wirelessly charge the electronic device.

[0031] In one possible implementation, the protective shell further includes a reinforcing antenna. The shell assembly includes a second side and a third side, located on opposite sides of the shell assembly. The reinforcing antenna is located outside the shell assembly and includes a connecting portion and a main body. One end of the connecting portion is fixedly connected to the main body, and the other end is rotatably connected to the second side. The reinforcing antenna is rotatable relative to the shell assembly between an unfolded position and a folded position. When the reinforcing antenna is in the folded position, the main body is located between the second and third sides. When the reinforcing antenna is in the unfolded position, the main body is located on the side of the second side furthest from the third side.

[0032] In this implementation, when the booster antenna is in the folded position, the volume of the protective shell is reduced between the second and third sides of the rotating main body, making it easier for the user to carry. When the booster antenna is in the unfolded position, the main body of the booster antenna rotates to the side of the second side away from the third side, facilitating coupling between the main body and the antenna of the electronic device. This enhances the signal of the electronic device, making it convenient for users to use during outdoor adventures.

[0033] In one possible implementation, the connecting part is rotatable about a rotation axis that extends at both ends along the extension direction of the second side.

[0034] In this implementation, the rotation axis of the connecting part extends along the extension direction of the second side to facilitate adjustment of the position of the main body, so that the enhanced antenna can switch between the folded position and the unfolded state, and the rotation of the enhanced antenna is not easily affected by the structure on the back of the protective shell.

[0035] In one possible implementation, the connecting part is rotatably connected to the second side via a damping structure.

[0036] In this implementation, the connection is made through a damping structure, which allows the enhancement antenna to remain in any position. The enhancement antenna and the housing assembly together form a support structure for the electronic device, thus expanding the application of the enhancement antenna.

[0037] In one possible implementation, the main body is a ring-shaped structure.

[0038] In this implementation, the ring-shaped main body facilitates the avoidance of protective shells and components on electronic devices, and also enhances the transmission and reception of antenna signals.

[0039] In one possible implementation, the connecting portion is rotatable about a rotation axis extending from both ends along the extension direction of the second side. The housing assembly has clearance holes. When the enhanced antenna is in the folded position, the main body surrounds the clearance holes.

[0040] In this implementation, the main body surrounds the clearance hole to reduce the space occupied by the main body when the enhancement antenna is in the folded position. In addition, it does not affect the use of components (e.g., cameras) installed in the clearance hole.

[0041] In one possible implementation, the second side is located on top of the housing assembly.

[0042] In this implementation, the second side is located on the top of the housing assembly, which facilitates the docking of the enhancement antenna on the second side with the enhancement antenna of the electronic device to increase the signal of the electronic device.

[0043] In one possible implementation, the housing assembly encloses a receiving cavity for accommodating electronic equipment. The inner wall of the receiving cavity is provided with a cushioning structure.

[0044] In this implementation, the electronic device is housed within the cavity of the protective casing. When the electronic device is dropped, the buffer structure provides cushioning and shock absorption to reduce damage to the device.

[0045] In one possible implementation, the housing assembly includes a frame for fitting onto the sidewall of the electronic device. The frame includes a corner structure, the inner wall of which has a cushioning structure.

[0046] In this implementation, the buffer structure is located at the corner of the housing assembly to provide key protection for the vulnerable edges and corners of the electronic device.

[0047] In one possible implementation, the buffer structure is an airbag.

[0048] In this implementation, the airbag is lightweight and easy to carry, which helps improve user comfort.

[0049] In one possible implementation, the protective housing also includes an in-situ identification component disposed on the housing assembly, which is used to generate an in-situ signal.

[0050] In this implementation, an identification section enables the electronic device to identify whether the protective case is connected to the electronic device.

[0051] Secondly, embodiments of this application provide an electronic device assembly, which includes an electronic device and a protective housing as described in any of the first aspects. The protective housing is used to cover the electronic device, and the charging and discharging circuit of the protective housing can be used to charge the electronic device. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0053] Figure 2 for Figure 1 Exploded view of the structure of electronic equipment in China;

[0054] Figure 3 This is a schematic diagram of the structure of a protective shell provided in an embodiment of this application;

[0055] Figure 4 A partial cross-sectional view of a protective shell provided in an embodiment of this application;

[0056] Figure 5 A partial cross-sectional view of another protective shell provided in an embodiment of this application;

[0057] Figure 6 A partial cross-sectional view of another protective shell provided in an embodiment of this application;

[0058] Figure 7 A partial cross-sectional view of another protective shell provided in an embodiment of this application;

[0059] Figure 8 A schematic diagram of the structure of another protective case provided in the embodiments of this application when the flip cover is in the open state;

[0060] Figure 9 for Figure 8 The diagram provided shows the structure of the protective case when the flip cover is closed.

[0061] Figure 10 A schematic diagram of the connection structure between the back shell and the flip cover of a protective shell provided in an embodiment of this application;

[0062] Figure 11 A circuit connection diagram of a protective shell provided in an embodiment of this application;

[0063] Figure 12 A schematic diagram of the structure of a protective case fitted onto an electronic device in an embodiment of this application when the antenna is in a folded position;

[0064] Figure 13 for Figure 12 The diagram provided shows the structure of the protective case fitted onto the electronic device when the enhanced antenna is in the deployed position;

[0065] Figure 14 This is a schematic diagram of the structure of a protective shell provided in an embodiment of this application when the antenna is in the supported position.

[0066] Explanation of reference numerals in the attached figures:

[0067] 100. Electronic devices; 110. Display screen; 120. Mid-frame; 130. Back cover; 140. Battery; 150. Camera; 160. Motherboard;

[0068] 200. Protective casing;

[0069] 210. Housing assembly; 211. Back cover; 2111. First side; 2112. Second side; 2113. Third side; 2114. Fourth side; 2115. First connector; 2116. Clearance hole; 212. Flip cover; 2121. Second connector; 2122. Mounting slot;

[0070] 220. Solar cells; 221. Flexible circuit boards;

[0071] 230. Charging / discharging circuit; 231. Charging / discharging control circuit; 2311. Voltage regulation module; 2312. First voltage regulator chip; 2313. Microprocessor; 2314. Boost module; 2315. Wireless charging chip; 2316. Second voltage regulator chip; 2317. Operational amplifier; 232. Charging component; 2321. Wireless charging coil; 233. Energy storage battery; 234. Protection element; 235. Presence indicator component;

[0072] 240, Electrochromic structural layer; 250, First transparent structural layer; 260, Second transparent structural layer; 270, Switch; 280, Communication module; 290, Enhanced antenna; 291, Connecting part; 292, Main body. Detailed Implementation

[0073] The terminology used in the implementation section of this application is only for explaining specific embodiments of this application and is not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0074] Protective cases, as accessories for electronic devices, are placed on top of these devices to protect them. For example, taking mobile phones as an example, there are currently various types of phone cases available. Users can place a case on their phone to protect it from scratches or drops. To improve the battery life of electronic devices, protective cases can include solar panels. By incorporating solar panels into the case, solar energy can be used to charge the device. However, in related technologies, the appearance of protective cases that can solar charge electronic devices is relatively limited, affecting the product's competitiveness.

[0075] In view of this, embodiments of this application provide a protective case and an electronic device assembly. The protective case incorporates an electrochromic structure layer on the light-receiving side of the solar cell. The transmittance of this layer can be altered via a charging / discharging circuit. When the electrochromic structure layer is in a high-transmittance mode, sunlight can easily penetrate it and reach the solar cell, enabling photoelectric conversion. When the electrochromic structure layer is in a low-transmittance mode, it can shield the solar cell, making it less visible on the outside of the protective case. Furthermore, the electrochromic structure layer can decorate the solar cell, allowing the protective case to have diverse aesthetic effects, thereby enhancing its appearance and improving product competitiveness.

[0076] This application provides an electronic device assembly, which includes an electronic device and a protective housing. The protective housing is used to cover the electronic device for protection.

[0077] For example, electronic devices may include, but are not limited to, mobile phones, tablets, laptops, ultra-mobile personal computers (UMPCs), handheld computers, netbooks, wearable devices, etc. The following explanation uses mobile phones as an example.

[0078] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 2 for Figure 1 An exploded view of the structure of an electronic device.

[0079] like Figure 1 , Figure 2 As shown, the electronic device 100 includes a housing and a motherboard 160. The housing is used to enclose a cavity forming a mounting device, and the motherboard 160 is mounted in the cavity. The housing protects the motherboard 160. A protective shell 200 is fitted onto the housing.

[0080] For example, the electronic device 100 may also include a display screen 110, which is mounted on the housing and electrically connected to the motherboard 160.

[0081] For example, the electronic device 100 may also include a battery 140, which is installed in a housing and electrically connected to the motherboard 160 and the display screen 110 to power the motherboard 160 and the display screen 110.

[0082] For example, the electronic device 100 may also include a camera 150, which is mounted on the housing and located on the side of the housing away from the display screen 110. The camera 150 is electrically connected to the motherboard 160.

[0083] For example, the housing may include a middle frame 120 and a rear cover 130. The middle frame 120 is disposed on the rear cover 130. The middle frame 120 and the rear cover 130 are used to enclose a cavity forming the mounting device. The battery 140 and the camera 150 are both disposed in the cavity. The display screen 110 is disposed on the side of the middle frame 120 away from the rear cover 130. The camera 150 may be disposed on the rear cover 130.

[0084] In some examples, a portion of the camera 150 may protrude beyond the back cover 130.

[0085] In this application, the "outer side" of a component or structure of electronic device 100 refers to the side of the object being described that faces away from the cavity formed inside electronic device 100 for mounting devices, while the "inner side" of a component or structure refers to the side of the object being described that faces the cavity formed inside electronic device 100 for mounting devices.

[0086] For example, an antenna is provided on the mid-frame 120 to enable the communication function of the electronic device 100.

[0087] For example, an antenna is provided at the top of the middle frame 120. For instance, the antenna at the top of the middle frame 120 may be a satellite antenna.

[0088] For example, the top of a component or structure of electronic device 100 refers to the portion of electronic device 100 that is above the ground when the user is using it. For instance, when electronic device 100 is a mobile phone, the top of the frame 120 refers to the portion of the frame 120 that is above the ground when the user is making or receiving a call.

[0089] For example, the electronic device 100 also includes a charging module that is electrically connected to the battery 140. For instance, the charging module can be electrically connected to the battery 140 via the motherboard 160, and the charging module is used to charge the battery 140.

[0090] For example, the charging module may include a charging interface disposed on the mid-frame 120, the charging interface being electrically connected to the battery 140, and the charging interface being used to enable wired charging of the electronic device 100.

[0091] For example, the charging module may include a wireless charging module disposed within the cavity and electrically connected to the battery 140. The wireless charging module can be used to wirelessly charge the electronic device 100. For instance, the wireless charging module can be disposed near the back cover 130, allowing the electronic device 100 to be wirelessly charged when it is placed on an external wireless charging device and the back cover 130 is close to the external wireless charging device.

[0092] Figure 3 This is a schematic diagram of a protective shell provided in an embodiment of this application. In the figure, the x-direction is a first direction, the y-direction is a second direction, the z-direction is a third direction, one of the first and second directions is the width direction of the protective shell 200, the other of the first and second directions is the length direction of the protective shell 200, and the third direction is the height direction of the protective shell 200.

[0093] like Figure 3 As shown, the protective housing 200 includes a housing assembly 210 for mounting on the electronic device 100. The housing assembly 210 has a receiving cavity in which the electronic device 100 is placed to protect the electronic device 100.

[0094] For example, housing assembly 210 can be fitted onto the housing of electronic device 100. For instance, housing assembly 210 can be fitted onto the mid-frame 120 and rear cover 130 of electronic device 100. Housing assembly 210 serves to protect the fitted electronic device 100.

[0095] In some examples, the housing assembly 210 may surround the receiving cavity circumferentially, meaning that the housing assembly 210 can surround any position around the receiving cavity circumferentially. When the electronic device 100 is housed within the housing assembly 210, the sidewalls of the electronic device 100 are entirely enclosed by the housing assembly 210.

[0096] The sidewall of electronic device 100 refers to the shell wall that extends circumferentially along electronic device 100.

[0097] In other examples, the housing assembly 210 may surround a portion of the receiving cavity circumferentially; that is, a portion of the circumferential portion of the receiving cavity is surrounded by the housing assembly 210, while a portion is not. When the electronic device 100 is housed within the housing assembly 210, a portion of the sidewall of the electronic device 100 is enclosed by the housing assembly 210, while a portion is not.

[0098] For example, the housing assembly 210 has borders on both sides in a first direction and notches on both sides in a second direction. The housing assembly 210 surrounds at least a portion of the receiving cavity on both sides in the first direction, while at least a portion of the receiving cavity on both sides in the second direction is not surrounded by the housing assembly 210. When the electronic device 100 is fitted inside the housing assembly 210, at least a portion of the electronic device 100 on both sides in the first direction is surrounded by the housing assembly 210, while at least a portion of the electronic device 100 on both sides in the second direction is not surrounded by the housing assembly 210.

[0099] For example, the housing assembly 210 has borders on both sides in the first direction and on one side in the second direction, and a notch on the other side in the second direction. The housing assembly 210 surrounds at least a portion of the receiving cavity on both sides in the first direction and at least a portion of the receiving cavity on one side in the second direction, while at least a portion of the receiving cavity on the other side in the second direction is not surrounded by the housing assembly 210. When the electronic device 100 is fitted inside the housing assembly 210, at least a portion of the electronic device 100 on both sides in the first direction and at least a portion of the electronic device 100 on one side in the second direction are wrapped by the housing assembly 210, while at least a portion of the electronic device 100 on the other side in the second direction is not wrapped by the housing assembly 210.

[0100] To increase the battery life of the electronic device 100, the protective casing 200 also includes a solar cell 220 and a charging / discharging circuit 230. The solar cell 220 converts solar energy into electrical energy. The solar cell 220 has opposing light-receiving and connecting surfaces. The light-receiving surface receives sunlight, and the connecting surface is used to mount and fix the solar cell 220. The solar cell 220 is connected to the casing assembly 210 via the connecting surface. The charging / discharging circuit 230 is located in the casing assembly 210 and is electrically connected to the solar cell 220. The charging / discharging circuit 230 can be used to charge the electronic device 100.

[0101] In related technologies, in order for sunlight to reach the solar cells, the outer side of the solar cells is often made transparent, and the solar cells are visible from the outside of the protective casing. This makes the appearance of the protective casing rather monotonous and less aesthetically pleasing, which affects the competitiveness of the product.

[0102] Figure 4 This is a partial cross-sectional view of a protective shell provided in an embodiment of this application.

[0103] like Figure 4 As shown, based on this, in this embodiment of the application, the protective shell 200 further includes an electrochromic structure layer 240. The electrochromic structure layer 240 is disposed on the light-receiving side of the solar cell 220, that is, on the side of the solar cell 220 facing the light-receiving surface, or on the outer side of the solar cell 220. The electrochromic structure layer 240 is electrically connected to the charge / discharge circuit 230, and is used to change its transmittance under the action of an applied electric field.

[0104] In this application, the “outer side” of a component or structure of the protective shell 200 refers to the side of the object being described that faces away from the receiving cavity inside the protective shell 200, and the “inner side” of a component or structure refers to the side of the object being described that faces the receiving cavity inside the protective shell 200.

[0105] For example, the transmittance can be obtained by the ratio of the intensity of transmitted light emitted from the electrochromic structure layer 240 to the intensity of incident light entering the electrochromic structure layer 240.

[0106] The charge / discharge circuit 230 alters the light transmittance of the electrochromic structure layer 240. In a high-transmittance mode, sunlight can easily penetrate the layer and reach the solar cell 220, enabling photoelectric conversion. In a low-transmittance mode, the layer can block the solar cell 220, making it less visible on the outside of the protective casing 200. This allows the surface of the casing 200 to display the blue, black, or other colors of the electrochromic structure layer 240. Thus, when the casing 200 does not require solar charging, the electrochromic structure layer 240 can decorate the solar cell 220, providing diverse aesthetic effects and enhancing the product's appeal and competitiveness.

[0107] For example, the electrochromic structure layer 240 can be connected to the solar cell 220 and connected to the housing assembly 210 via the solar cell 220.

[0108] For example, the two sides of the solar cell 220 in the thickness direction are connected to the housing assembly 210 and the electrochromic structure layer 240, respectively.

[0109] In some examples, the electrochromic structure layer 240 can change its transmittance under the action of an applied electric field, and when the applied electric field is removed, the electrochromic structure layer 240 can maintain the state before the application of the applied electric field is removed.

[0110] For example, the electrochromic structure layer 240 has a colored state and a transparent state, and is used to switch between the colored state and the transparent state under the action of an applied electric field. The transmittance of the electrochromic structure layer 240 in the colored state is less than that in the transparent state. Thus, when the electrochromic structure layer 240 is in the colored state, its transmittance to sunlight is low, it is in a low transmittance mode, and it displays its color. When the electrochromic structure layer 240 is in the transparent state, its transmittance to sunlight is high, it is in a high transmittance mode, it is transparent, and the solar cell 220 is displayed.

[0111] In some examples, the light transmittance of the electrochromic structure layer 240 in its transparent state is greater than or equal to 80%. For example, the light transmittance of the electrochromic structure layer 240 in its transparent state may include, but is not limited to, 85%, 90%, 95%, etc. Thus, the high light transmittance of the electrochromic structure layer 240 in its transparent state allows sunlight to pass through effectively and irradiate the solar cell 220, ensuring the power generation efficiency of the solar cell 220.

[0112] In other examples, the transmittance of the electrochromic structure layer 240 when it is in the transparent state can also be 75%, 78%, etc.

[0113] In some examples, the light transmittance of the electrochromic structural layer 240 in its colored state is less than or equal to 30%. For example, the light transmittance of the electrochromic structural layer 240 in its colored state may include, but is not limited to, 15%, 20%, 25%, etc. Thus, the light transmittance of the electrochromic structural layer 240 in its colored state is low, so that the appearance of the protective case 200 can be displayed as the color of the electrochromic structural layer 240, achieving a decorative effect on the protective case 200.

[0114] In other examples, the transmittance of the electrochromic structure layer 240 in the colored state can also be 35%, 38%, etc.

[0115] For example, the electrochromic structure layer 240 can be a tungsten trioxide thin film layer. When the tungsten trioxide thin film layer is in a transparent state, its light transmittance can reach up to 95%, providing excellent light transmission to ensure the normal operation of the solar cell 220. When the tungsten trioxide thin film layer is in a colored state, the visible light transmittance at 550 nm can change by 21%. Furthermore, tungsten trioxide appears deep blue or bluish-black in the colored state. Compared to directly exposing the solar cell 220, the electrochromic structure layer 240 is more aesthetically pleasing in the colored state, improving the user experience.

[0116] For example, the electrochromic structure layer 240 can also be a thin film formed of other electrochromic materials such as titanium dioxide and violet.

[0117] In some examples, the projection of the electrochromic structure layer 240 covers the projection of the solar cell 220 along the thickness direction of the solar cell 220. The electrochromic structure layer 240 completely covers the solar cell 220 to shield the solar cell 220, improve the aesthetics of the protective shell 200, and also serve as a protective sheet for the solar cell 220.

[0118] In other examples, along the thickness direction of the solar cell 220, the projection of the electrochromic structure layer 240 covers the projection of the solar cell 220, with a portion of the projection of the solar cell 220 located outside the projection of the electrochromic structure layer 240.

[0119] like Figure 3 As shown, the housing assembly 210 includes a back cover 211, which is used to enclose and form a receiving cavity. The back cover 211 is used to fit over the electronic device 100, which is located within the receiving cavity. For example, the back cover 211 can be fitted onto the middle frame 120 and the rear cover 130.

[0120] For example, one of the first direction and the second direction is the width direction of the back shell 211, the other of the first direction and the second direction is the length direction of the back shell 211, and the third direction is the height direction of the back shell 211.

[0121] In some examples where the housing assembly 210 surrounds the receiving cavity circumferentially, the back cover 211 may surround the receiving cavity circumferentially, meaning that the back cover 211 can surround any position circumferentially of the receiving cavity. When the electronic device 100 is housed within the housing assembly 210, the entire sidewall of the electronic device 100 is enclosed by the back cover 211.

[0122] In some examples where the housing assembly 210 surrounds the receiving cavity circumferentially, the back cover 211 may surround the receiving cavity circumferentially; that is, a portion of the receiving cavity is surrounded by the back cover 211, while a portion is not. When the electronic device 100 is housed within the housing assembly 210, a portion of the sidewall of the electronic device 100 is covered by the back cover 211, while a portion is not.

[0123] For example, the back cover 211 can be a polycarbonate (PC) molded part to give the back cover 211 a certain strength and reduce the risk of damage to the internal components of the back cover 211 in the event of a drop. In addition, it also facilitates the support of devices mounted on the back cover 211.

[0124] For example, the back cover 211 has a clearance hole 2116 for avoiding devices or components on the electronic device 100. For instance, the clearance hole 2116 can be used to avoid the camera 150 of the electronic device 100. The camera 150 of the electronic device 100 can be inserted into the clearance hole 2116, so that the protective cover 200 fitted on the electronic device 100 will not obstruct the use of the camera 150 located on one side of the back cover 130.

[0125] In some examples, the solar cell 220, the charging / discharging circuit 230, and the electrochromic structure layer 240 are all disposed on the back cover 211, with the electrochromic structure layer 240 located on the side of the solar cell 220 away from the back cover 211. In this case, the electrochromic structure layer 240 is connected to the back cover 211 through the solar cell 220.

[0126] Figure 5 A partial cross-sectional view of another protective shell provided in an embodiment of this application.

[0127] For example, such as Figure 5 As shown, the protective shell 200 also includes a first transparent structural layer 250, which is located on the side of the electrochromic structural layer 240 away from the solar cell 220. In other words, the first transparent structural layer 250 is located on the outside of the electrochromic structural layer 240. The first transparent structural layer 250 can protect the electrochromic structural layer 240, reducing the risk of scratches, drops, or other damage. Furthermore, as a transparent layer, the first transparent structural layer 250 has good light transmittance, allowing sunlight to reach the solar cell 140.

[0128] For example, the first transparent structural layer 250 can serve as the outer surface of the protective shell 200.

[0129] For example, the first transparent structural layer 250 may be connected to the electrochromic structural layer 240 and connected to the housing assembly 210 through the electrochromic structural layer 240 and the solar cell 220.

[0130] For example, the projection of the first transparent structural layer 250 along the thickness direction of the electrochromic structural layer 240 covers the projection of the electrochromic structural layer 240.

[0131] For example, the first transparent structural layer 250 can be a glass layer, a transparent plastic layer, a transparent rubber layer, etc.

[0132] In the example where the solar cell 220 is disposed on the back cover 211, the first transparent structural layer 250 is disposed on the back cover 211.

[0133] For example, such as Figure 5As shown, the protective shell 200 also includes a second transparent structural layer 260, which is disposed between the electrochromic structural layer 240 and the solar cell 220. The second transparent structural layer 260, located between the electrochromic structural layer 240 and the solar cell 220, separates the electrochromic structural layer 240 from the solar cell 220, preventing mutual interference between them. Furthermore, the second transparent structural layer 260 is transparent and has good light transmittance, facilitating light penetration onto the solar cell 220.

[0134] For example, the electrochromic structure layer 240 can be connected to the second transparent structure layer 260, the second transparent structure layer 260 is connected to the solar cell 220, and the electrochromic structure layer 240 is connected to the solar cell 220 through the second transparent structure layer 260.

[0135] For example, the projection of the second transparent structural layer 260 along the thickness direction of the electrochromic structural layer 240 covers the projection of the solar cell 220.

[0136] For example, the second transparent structural layer 260 can be a glass layer, a transparent plastic layer, a transparent rubber layer, etc.

[0137] In the example where the solar cell 220 is disposed on the back cover 211, the second transparent structural layer 260 is disposed on the back cover 211.

[0138] In some examples, the outer surface of the housing assembly 210 has a bearing plane, on which the solar cell 220 is disposed. In this case, the electrochromic structural layer 240 is disposed on the bearing plane via the solar cell 220. When the protective housing 200 includes a first transparent structural layer 250 and a second transparent structural layer 260, the first transparent structural layer 250 and the second transparent structural layer 260 are disposed on the bearing plane via the solar cell 220.

[0139] Figure 6 A partial cross-sectional view of another protective shell provided in this application embodiment. Figure 7 This is a partial cross-sectional view of another protective shell provided in an embodiment of this application.

[0140] like Figure 6As shown, in some other examples, the outer surface of the housing assembly 210 has a mounting groove 2122, within which the solar cell 220 is disposed to connect the solar cell 220 to the protective housing 200. The mounting groove 2122 protects the solar cell 220, reducing the risk of damage to the protective housing 200 during drops. An electrochromic structural layer 240 may be located within the mounting groove 2122, and the groove wall of the mounting groove 2122 may protect the electrochromic structural layer 240.

[0141] like Figure 7 As shown, in some examples where the protective housing 200 includes a first transparent structural layer 250, the first transparent structural layer 250 is located within the mounting groove 2122.

[0142] In some examples where the protective housing 200 includes a second transparent structural layer 260, the second transparent structural layer 260 is located within the mounting groove 2122.

[0143] Figure 8 This is a schematic diagram of another protective case provided in this application when the flip cover is in the open state. Figure 9 for Figure 8 The diagram provided shows the structure of the protective case when the flip cover is closed.

[0144] In some examples, such as Figure 8 and Figure 9 As shown, the housing assembly 210 also includes a flip cover 212. The back cover 211 includes a first side 2111, which may be located on one side of the back cover 211 in a first direction and extends along a second direction. The flip cover 212 is rotatably connected to the first side 2111 and is used to cover the surface of the electronic device 100 housed within the back cover 211. For example, the flip cover 212 may be used to cover the surface of the display screen 110 of the electronic device 100 housed within the back cover 211. A solar cell 220 is disposed on the flip cover 212. At this time, an electrochromic structure layer 240 is disposed on the flip cover 212 through the solar cell 220, and the electrochromic structure layer 240 is located on the side of the solar cell 220 away from the flip cover 212. When the flip cover 212 covers the surface of the electronic device 100 housed within the back cover 211, the solar cell 220 is disposed on the side of the flip cover 212 away from the electronic device 100.

[0145] In this way, the flip cover 212 does not need to have a large clearance structure, and the flip cover 212 can have a larger space for arranging devices, thereby increasing the area where the solar cells 220 are laid, so as to improve the efficiency of solar charging. In addition, when the electronic device 100 with the protective case 200 is placed on the external wireless charging device, the solar cells 220 located on the flip cover 212 are located on the side of the wireless charging module of the electronic device 100 away from the external wireless charging device. This reduces the problem of the external wireless charging device having difficulty charging the electronic device 100 with the protective case 200 due to the solar cells 220 being located between the wireless charging module of the electronic device 100 and the external wireless charging device, and facilitates the external wireless charging device to wirelessly charge the electronic device 100 with the protective case 200.

[0146] The outer side of the flip cover 212 refers to the side of the flip cover 212 that is away from the back cover 211 when the flip cover 212 is closed on the back cover 211, and the inner side of the flip cover 212 refers to the side of the flip cover 212 that is close to the back cover 211 when the flip cover 212 is closed on the back cover 211.

[0147] When the flip cover 212 is closed on the back cover 211, the thickness direction of the solar cell 220 can be a third direction.

[0148] In some examples, the first side 2111 may be located on the upper side of the back cover 211, meaning the flip cover 212 is attached to the upper side of the back cover 211. In other examples, the first side 2111 may be located on the lower side of the back cover 211, meaning the flip cover 212 is attached to the lower side of the back cover 211. In still other examples, the first side 2111 may be located on the left side of the back cover 211, meaning the flip cover 212 is attached to the left side of the back cover 211. In yet other examples, the first side 2111 may be located on the right side of the back cover 211, meaning the flip cover 212 is attached to the right side of the back cover 211.

[0149] The "upper side" of the back cover 211 refers to the side of the back cover 211 that is furthest from the ground when the user uses the electronic device 100 housed within the back cover 211. The "lower side" of the back cover 211 refers to the side of the back cover 211 that is closest to the ground when the user uses the electronic device 100 housed within the back cover 211. The "left side" of the back cover 211 refers to the side of the back cover 211 that is closest to the user's left hand when the user uses the electronic device 100 housed within the back cover 211. The "right side" of the back cover 211 refers to the side of the back cover 211 that is closest to the user's right hand when the user uses the electronic device 100 housed within the back cover 211.

[0150] In the example where the solar cell 220 is disposed on the flip cover 212, the two sides of the solar cell 220 in the thickness direction can be connected to the flip cover 212 and the electrochromic structure layer 240, respectively.

[0151] In some examples where the solar cell 220 is provided on the flip cover 212, the mounting groove 2122 is provided on the outer side of the flip cover 212.

[0152] In some examples where the solar cell 220 is disposed on the flip cover 212, a first transparent structural layer 250 and a second transparent structural layer 260 are disposed on the flip cover 212.

[0153] For example, the flip cover 212 includes a rotating part and a cover part. The rotating part is disposed on the side of the cover part and is rotatably connected to the first side 2111. The cover part is used to cover the display screen 110 of the electronic device 100 to form protection for the display screen 110.

[0154] For example, the cover portion of the flip cover 212 can be a polycarbonate molded part, so that the protective shell 200 has a certain strength to support the solar cell 220.

[0155] For example, the rotating part of the flip cover 212 can be a flexible connecting fabric or a flexible plastic part. The rotating part is connected to the first side 2111, and the flip cover 212 can be flipped without the need for a pivot, thereby reducing the weight of the protective case 200 and improving the user experience.

[0156] For example, the back cover 211 also includes a fourth side 2114, which is located on both sides of the back cover 211 in a first direction, and the fourth side 2114 extends along a second direction. The flip cover 212 is rotatable so that the surface of the electronic device 100 overlaps with the fourth side 2114, that is, when the flip cover 212 is closed on the back cover 211, the flip cover 212 can overlap with the fourth side 2114.

[0157] For example, in order to improve the stability of the overlap of the flip cover 212, the flip cover 212 and the fourth side 2114 can be provided with magnetic adsorption components (not shown in the figure) to attract each other, so that the flip cover 212 and the fourth side 2114 can be magnetically engaged.

[0158] For example, the charging and discharging circuit 230 is located on the back cover 211. In this way, the charging and discharging circuit 230 does not occupy the space of the flip cover 212, which is beneficial to increasing the installation area of ​​the solar cell 220.

[0159] In some examples, the back cover 211 and the flip cover 212 are detachably connected, allowing users to choose whether or not to install the flip cover 212 based on their needs. When solar charging is not required, users can remove the flip cover 212 to reduce the weight of the protective case 200, thereby improving the user experience. In scenarios such as outdoor adventures, the flip cover 212 can be installed on the back cover 211 to protect the display screen 110 of the electronic device 100 and improve the battery life of the electronic device 100.

[0160] Figure 10 This is a schematic diagram of the connection structure between the back cover and the flip cover of a protective shell provided in an embodiment of this application. Figure 11 This is a circuit connection diagram of a protective case provided in an embodiment of this application.

[0161] like Figure 10 , Figure 11 As shown, in some examples where the charging / discharging circuit 230 is located on the back cover 211 and the solar cell 220 is located on the flip cover 212, the back cover 211 is also provided with a first connector 2115, and the charging / discharging circuit 230 is electrically connected to the first connector 2115. The flip cover 212 is also provided with a second connector 2121, and the solar cell 220 is electrically connected to the second connector 2121. The first connector 2115 and the second connector 2121 are detachably connected, and the charging / discharging circuit 230 and the solar cell 220 are electrically connected through the first connector 2115 and the second connector 2121, so that users can quickly assemble and disassemble the flip cover 212 and its circuits from the back cover 211.

[0162] For example, the first connector 2115 may be located on the first side 2111 of the back cover 211 and electrically connected to the charging / discharging circuit 230. The second connector 2121 on the flip cover 212 is electrically connected to the solar cell 220.

[0163] For example, both the first connector 2115 and the second connector 2121 are board-to-board (BTB) connectors. The first connector 2115 and the second connector 2121 are connected by the snap-fit ​​of the end of the board-to-board connector to achieve a detachable connection between them and to achieve a detachable connection between the charging and discharging circuit 230 and the solar cell 220.

[0164] For example, the second connector 2121 is electrically connected to the solar cell 220 via a flexible printed circuit board (FPC) 221.

[0165] like Figure 10 , Figure 11As shown, in some examples, the protective case 200 also includes a switch 270. The switch 270 is located on the case assembly 210 and is electrically connected to the charge / discharge circuit 230. The switch 270 is used to control the change in light transmittance of the electrochromic structural layer 240, allowing the user to control the light transmittance of the electrochromic structural layer 240 by the protective case 200 itself without the need for external devices.

[0166] For example, switch 270 can be used to control the electrochromic structure layer 240 to switch between a transparent state and a colored state.

[0167] For example, switch 270 is used to generate control commands, and charge / discharge circuit 230 is used to control the electrochromic structure layer 240 to change the light transmittance according to the control commands generated by switch 270.

[0168] For example, switch 270 can be a mechanical switch, such as a push-button switch, which allows the user to generate a control command by pressing the switch 270. Alternatively, switch 270 can be a rotary switch, which allows the user to generate a control command by rotating the switch 270.

[0169] For example, switch 270 is disposed on back cover 211 so that switch 270 can be connected to charging / discharging circuit 230 disposed on back cover 211.

[0170] like Figure 10 , Figure 11 As shown, in some examples, the protective housing 200 also includes a communication module 280. The communication module 280 is located in the housing assembly 210 and is electrically connected to the charging and discharging circuit 230. The communication module 280 is used to receive control commands that control the change of the light transmittance of the electrochromic structure layer 240, so that the light transmittance of the electrochromic structure layer 240 can be changed under the control of an external device.

[0171] For example, the communication module 280 is used to receive control instructions to control the change of light transmittance of the electrochromic structure layer 240, and the charging and discharging circuit 230 is used to control the change of light transmittance of the electrochromic structure layer 240 according to the control instructions received by the communication module 280.

[0172] For example, the communication module 280 can be used to interact with the electronic device 100, which can be used to issue control commands to change the transmittance of the electrochromic structure layer 240.

[0173] For example, the communication module 280 may be a Bluetooth module, etc., and the protective case 200 interacts with the electronic device 100 via Bluetooth to receive control signals from the electronic device 100.

[0174] For example, the communication module 280 may be disposed on the back cover 211 so that the communication module 280 can be connected to the charging and discharging circuit 230 disposed on the back cover 211.

[0175] like Figure 10 and Figure 11 As shown, exemplarily, the charge / discharge circuit 230 includes a charge / discharge control circuit 231 and a charging component 232. The solar cell 220, the electrochromic structure layer 240, and the charging component 232 are all electrically connected to the charge / discharge control circuit 231, so that each component can be controlled by the charge / discharge control circuit 231.

[0176] For example, the protective housing 200 may include a printed circuit board (PCB) disposed on the housing assembly 210, the charge / discharge control circuit 231 is located on the PCB, and the charging component 232 may be electrically connected to the PCB so as to be electrically connected to the charge / discharge control circuit 231 through the PCB.

[0177] For example, a printed circuit board is disposed on the back cover 211.

[0178] For example, switch 270 can be electrically connected to a printed circuit board to be electrically connected to charge / discharge circuit 230 via the printed circuit board.

[0179] For example, the communication module 280 may be disposed on a printed circuit board, and the communication module 280 is electrically connected to the charging and discharging circuit 230 through the printed circuit board.

[0180] In some examples, the charging / discharging circuit 230 also includes an energy storage battery 233. The energy storage battery 233 is electrically connected to the charging / discharging circuit 230. The energy storage battery 233 enables the protective case 200 to have an energy storage function. Even after the electronic device 100 is removed from the protective case 200, it can still be used for solar energy storage using the protective case 200, avoiding the disadvantage of not being able to use the electronic device 100 during solar charging, improving the battery life of the electronic device 100 during outdoor adventures, and further enhancing the user experience. In addition, the protective case 200 can be used independently for solar charging, preventing the electronic device 100 from overheating under sunlight and affecting its use.

[0181] For example, the energy storage battery 233 is located on the back cover 211 and is electrically connected to the charge and discharge control circuit 231 to store the electrical energy converted by the solar cell 220.

[0182] For example, the energy storage battery 233 can be a button cell battery, and multiple button cells can be connected to the charge and discharge control circuit 231 to meet the corresponding energy storage requirements, so that the protective case 200 can also function as a power bank.

[0183] For example, the energy storage battery 233 may be disposed on a printed circuit board.

[0184] For example, the charging and discharging circuit 230 has charging and reverse charging functions. When the energy storage battery 233 of the protective case 200 is charged, it can supply power to the electrochromic structure layer 240 to change the light transmittance of the electrochromic structure layer 240. When the energy storage battery 233 of the protective case 200 is decharged, the electronic device 100 can reverse charge the protective case 200 to supply power to the electrochromic structure layer 240 to change the light transmittance of the electrochromic structure layer 240.

[0185] For example, the charging component 232 may include a wired charging module (not shown in the figure) for wired connection with the electronic device 100 to charge the electronic device 100.

[0186] For example, the wired charging module is a Universal Serial Bus (USB) interface adapted to the charging port of the electronic device 100 for plugging into the electronic device 100 to charge the electronic device 100.

[0187] like Figure 10 , Figure 11 As shown, the charging component 232 may further include a wireless charging coil 2321. The wireless charging coil 2321 is electrically connected to the charging and discharging control circuit 231 and is located on the back cover 211. When the electronic device 100 has a wireless charging function, the protective cover 200 can also charge the electronic device 100 wirelessly. Furthermore, when using an external wireless charging device to charge the electronic device 100 covered by the protective cover 200, the external wireless charging device can be coupled to the wireless charging coil 2321, and the wireless charging coil 2321 can then be coupled to the wireless charging module of the electronic device 100, thereby enabling the external wireless charging device to wirelessly charge the electronic device 100 covered by the protective cover 200.

[0188] For example, regardless of whether the solar cell 220 is located on the back cover 211 or the flip cover 212, a wireless charging coil 2321 can be provided on the back cover 211 so that the protective case 200 can charge the electronic device 100 wirelessly.

[0189] like Figure 10As shown, for example, the protective housing 200 also includes an in-situ identification component 235, which is disposed on the housing assembly 210 and is used to generate an in-situ signal. The in-situ identification component 235 enables the electronic device 100 to identify whether the protective housing 200 is connected to the electronic device 100, allowing the electronic device 100 to adjust its operating mode based on whether the protective housing 200 is installed.

[0190] For example, the in-place identification component 235 is provided on the back cover 211.

[0191] In some examples, the presence identification component 235 may include a magnet, and the electronic device 100 may have a Hall sensor. The presence signal is the magnetic field signal generated by the magnet. The Hall sensor is used to acquire the magnetic field signal generated by the magnet so that the electronic device 100 can determine whether the protective shell 200 is fitted onto the electronic device 100 based on the signal acquired by the Hall sensor.

[0192] like Figure 11 As shown, for example, the charge / discharge control circuit 231 may include a voltage regulation module 2311 (bypassboost). The solar cell 220 and the charging component 232 are electrically connected through the voltage regulation module 2311, which is used to adjust the voltage output by the solar cell 220.

[0193] For example, the voltage regulation module 2311 includes boost and buck circuits. Due to the influence of sunlight, the output voltage of the solar cell 220 fluctuates greatly. Therefore, the voltage regulation module 2311 is used to regulate the voltage to maintain a stable output voltage.

[0194] For example, the voltage regulating module 2311 is electrically connected to the solar cell 220 via a flexible circuit board 221.

[0195] In some examples where the charging component 232 includes a wireless charging coil 2321, the charge / discharge control circuit 231 may also include a wireless charging chip 2315 (receive / transmit, RX / TX). The wireless charging chip 2315 is electrically connected to the voltage regulation module 2311 and the wireless charging coil 2321 respectively to transmit the electrical energy converted by the solar cell 220 to the electronic device 100. Exemplarily, the wireless charging chip 2315 and the wireless charging coil 2321 are electrically connected via wire bonding or a board-to-board connector, and the wireless charging chip 2315 has wireless charging and wireless reverse charging functions.

[0196] For example, the charge / discharge control circuit 231 further includes a first voltage regulator chip 2312 (low dropout regulator, LDO) and a microprocessor unit 2313 (microcontroller unit, MCU). The microprocessor 2313 is electrically connected to the first voltage regulator chip 2312, and the first voltage regulator chip 2312 is electrically connected to the voltage regulation module 2311, the charging component 232, and the electrochromic structure layer 240. This allows the microprocessor 2313 to be electrically connected to the voltage regulation module 2311, the charging component 232, and the electrochromic structure layer 240 through the first voltage regulator chip 2312. The first voltage regulator chip 2312 provides a stable voltage to the microprocessor 2313, and the microprocessor 2313 controls the entire circuit.

[0197] In some examples where the charging / discharging circuit 230 includes an energy storage battery 233, the first voltage regulator chip 2312 is also electrically connected to the energy storage battery 233.

[0198] In some examples where the protective housing 200 includes a communication module 280, the microprocessor 2313 is electrically connected to the communication module 280.

[0199] In some examples where the protective housing 200 includes a switch 270, the microprocessor 2313 is electrically connected to the switch 270.

[0200] For example, the charge / discharge control circuit 231 also includes an operational amplifier 2317. The output terminal of the voltage regulation module 2311 is electrically connected to the operational amplifier 2317 to detect the output voltage of the voltage regulation module 2311. The voltage regulation module 2311 is electrically connected to the first voltage regulator chip 2312 and the charging component 232 through the operational amplifier 2317.

[0201] For example, the voltage regulating module 2311 is also electrically connected to the energy storage battery 233 via the operational amplifier 2317.

[0202] For example, the charge / discharge control circuit 231 also includes a boost module 2314, which can be used to adjust the voltage to the voltage required by the output of the charging component 232. The charging component 232 is electrically connected to the first voltage regulator chip 2312, the operational amplifier 2317 and the electrochromic structure layer 240 through the boost module 2314.

[0203] For example, the charging component 232 is also electrically connected to the energy storage battery 233 via the boost module 2314.

[0204] For example, the boost module 2314 is electrically connected to the wireless charging chip 2315.

[0205] For example, the boost module 2314 can be a 5V boost module.

[0206] For example, the charge / discharge control circuit 231 further includes a second voltage regulator chip 2316, which is electrically connected between the electrochromic structure layer 240 and the operational amplifier 2317 to regulate the voltage of the electrochromic structure layer 240. The second voltage regulator chip 2316 is also electrically connected to the first voltage regulator chip 2312, so that the first voltage regulator chip 2312 is electrically connected to the electrochromic structure layer 240 through the second voltage regulator chip 2316.

[0207] For example, the second voltage regulator chip 2316 is also electrically connected to the boost module 2314.

[0208] In some examples where the charging / discharging circuit 230 includes an energy storage battery 233, the second voltage regulator chip 2316 is also electrically connected to the energy storage battery 233.

[0209] For example, the energy storage battery 233 is connected in parallel to the output of the operational amplifier 2317, and multiple energy storage batteries 233 are connected in parallel to improve the energy storage capacity of the protective case 200.

[0210] For example, a protection element 234 is connected in series with the energy storage battery 233 to prevent the energy storage battery 233 from being overcharged.

[0211] For example, the protection element 234 can be a resettable fuse, a varistor, etc.

[0212] Figure 12 This is a schematic diagram of the structure of a protective case fitted onto an electronic device when the antenna is in a folded position, as provided in an embodiment of this application. Figure 13 for Figure 12 The diagram provided shows the structure of the protective case fitted onto the electronic device when the enhanced antenna is in the deployed position.

[0213] For example, such as Figure 12 and Figure 13 As shown, the protective housing 200 also includes an enhancement antenna 290. The enhancement antenna 290 is located on the outside of the housing assembly 210. The enhancement antenna 290 is used to enhance the signal of the antenna of the electronic device 100.

[0214] The housing assembly 210 also includes a second side 2112 and a third side 2113, which are located on the back shell 211. That is, the back shell 211 also includes a second side 2112 and a third side 2113, which are located on both sides of the back shell 211 in a second direction, and both the second side 2112 and the third side 2113 extend along the first direction.

[0215] The enhancement antenna 290 includes a connecting portion 291 and a main body 292. One end of the connecting portion 291 is fixedly connected to the main body 292, and the other end of the connecting portion 291 is rotatably connected to the second side 2112. The enhancement antenna 290 is rotatable relative to the housing assembly 210 between an unfolded position and a folded position. When the enhancement antenna 290 is in the folded position, the main body 292 is located between the second side 2112 and the third side 2113. When the enhancement antenna 290 is in the unfolded position, the main body 292 is located on the side of the second side 2112 away from the third side 2113.

[0216] When the enhanced antenna 290 is in the folded position, the volume of the protective case 200 is reduced between the second side 2112 and the third side 2113 of the main body 292, making it easier for the user to carry. When the enhanced antenna 290 is in the unfolded position, the main body 292 of the enhanced antenna 290 rotates to the side of the second side 2112 away from the third side 2113, facilitating coupling between the main body 292 and the antenna of the electronic device 100, thereby enhancing the signal of the electronic device 100 through the enhanced antenna 290, so that it can be used by the user during outdoor adventures.

[0217] In order to reduce the obstruction of the weak signal antenna (e.g., satellite antenna) by the user's head, hands, etc. when using electronic device 100, and to enable communication by the weak signal antenna, the weak signal antenna is often set on the top of electronic device 100.

[0218] For example, the second side 2112 is located on the top of the housing assembly 210. Specifically, the second side 2112 is located on the top of the back cover 211 to facilitate coupling of the enhanced antenna 290 in the deployed position with the antenna located on the top of the electronic device 100, thereby enhancing the signal of the antenna on the top of the electronic device 100. For example, when a satellite antenna is provided on the top of the electronic device 100, the enhanced antenna 290 in the deployed position can couple with the satellite antenna to enhance the satellite antenna signal.

[0219] For example, the top of a component or structure of the protective case 200 refers to the portion of the electronic device 100 covered by the protective case 200 that is away from the ground when used by a user. For instance, when the electronic device 100 is a mobile phone and the protective case 200 is a mobile phone case, the top of the housing assembly 210 refers to the portion of the housing assembly 210 of the protective case 200 covering the electronic device 100 that is away from the ground when the user makes or receives a call.

[0220] like Figure 13As shown, in some examples, the connecting portion 291 can rotate about a rotation axis that extends at both ends along the extension direction of the second side 2112. That is, the rotation axis of the connecting portion 291 relative to the housing assembly 210 extends along the extension direction of the second side 2112, so that the enhanced antenna 290 is not easily blocked by the back shell 211 during rotation, so as to facilitate the rotation of the main body 292 to the outside of the housing assembly 210.

[0221] For example, the main body 292 has a ring-shaped structure to facilitate the avoidance of the protective shell 200 and components on the electronic device 100, and also to enhance the transmission and reception of the antenna 290 signal.

[0222] For example, when the enhanced antenna 290 is in the folded position, the main body 292 surrounds the clearance hole 2116, so that the enhanced antenna 290 in the folded position is less likely to affect the use of components such as the camera 150 installed in the clearance hole 2116.

[0223] For example, the main body 292 is provided in accordance with the shape of the clearance hole 2116.

[0224] In some examples, the connecting part 291 is rotatably connected to the second side 2112 via a damping structure. The second side 2112 has a rotating shaft (not shown in the figure), with both ends of the rotating shaft extending along the extending direction of the second side 2112. The connecting part 291 is rotatably sleeved on the rotating shaft, and the damping structure may be provided between the rotating shaft and the connecting part 291.

[0225] For example, the damping structure may include at least one of elastic sheet, silicone part, rubber part, etc., so that the connecting part 291 has damping during rotation, ensuring that the connecting part 291 can stay at any angle.

[0226] Figure 14 This is a schematic diagram of the structure of a protective shell provided in an embodiment of this application when the antenna is in the supported position.

[0227] like Figure 14 As shown, by way of example, when the connecting part 291 is rotated at a small angle such as 45°, the reinforcing antenna 290 and the housing assembly 210 form a support structure for the electronic device 100, which serves as a support frame for the electronic device 100 and expands the application of the reinforcing antenna 290.

[0228] In some examples, the inner wall of the receiving cavity is provided with a cushioning structure. The electronic device 100 is housed in the receiving cavity of the protective shell 200. When the electronic device 100 is dropped, the cushioning structure improves the cushioning and shock absorption effect of the electronic device 100 to reduce damage to the electronic device 100.

[0229] For example, housing assembly 210 includes a frame for enclosing a receiving cavity and for fitting onto the sidewall of electronic device 100.

[0230] For example, the frame may be located on the back cover 211, that is, the back cover 211 may include the frame.

[0231] In the example where the housing assembly 210 surrounds the receiving cavity circumferentially, the frame is a closed-loop structure, meaning that the frame can surround the receiving cavity at any position circumferentially.

[0232] In an example where the housing assembly 210 surrounds a portion of the receiving cavity circumferentially, the frame has a notch. For example, the frame may include a plurality of side borders spaced circumferentially around the receiving cavity, with the gap between two adjacent side borders forming a notch. Part of the circumferential portion of the receiving cavity is surrounded by the frame, while part of the cavity is not surrounded by the frame.

[0233] For example, the frame includes a corner structure, and a buffer structure is provided on the inner wall of the corner structure to protect the vulnerable corners of the electronic device 100.

[0234] For example, the cushioning structure is an airbag. The airbag is lightweight, which helps to reduce the weight of the protective shell 200. By cushioning the impact, the impact force is quickly dispersed when the electronic device 100 is dropped, reducing the risk of damage to the electronic device 100 and the protective shell 200.

[0235] In some examples, the buffer structure can also be a rubber layer or a plastic layer.

[0236] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0237] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0238] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects; in formulas, the character " / " indicates a "division" relationship between the preceding and following related objects.

[0239] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0240] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

Claims

1. A protective shell, characterized in that, include: A housing assembly (210) for mounting on an electronic device (100); A solar cell (220) is connected to the housing assembly (210); A charging and discharging circuit (230) is electrically connected to the solar cell (220); An electrochromic structure layer (240) is disposed on the light-illuminated side of the solar cell (220). The electrochromic structure layer (240) is electrically connected to the charging and discharging circuit (230). The electrochromic structure layer (240) is used to change its transmittance under the action of an applied electric field.

2. The protective shell according to claim 1, characterized in that, Along the thickness direction of the solar cell (220), the projection of the electrochromic structure layer (240) covers the projection of the solar cell (220).

3. The protective shell according to claim 1, characterized in that, It also includes a first transparent structural layer (250), which is disposed on the side of the electrochromic structural layer (240) away from the solar cell (220).

4. The protective shell according to claim 1, characterized in that, It also includes a second transparent structural layer (260), which is disposed between the electrochromic structural layer (240) and the solar cell (220).

5. The protective shell according to claim 1, characterized in that, It also includes a switch (270); The switch (270) is located on the housing assembly (210) and is electrically connected to the charging and discharging circuit (230).

6. The protective shell according to claim 1, characterized in that, It also includes a communication module (280); The communication module (280) is disposed on the housing assembly (210), and the communication module (280) is electrically connected to the charging and discharging circuit (230).

7. The protective shell according to claim 1, characterized in that, The electrochromic structure layer (240) has a colored state and a transparent state, and the electrochromic structure layer (240) is used to switch between the colored state and the transparent state under the action of an applied electric field; Wherein, the light transmittance of the electrochromic structure layer (240) in the transparent state is greater than or equal to 80%.

8. The protective shell according to any one of claims 1-7, characterized in that, The housing assembly (210) includes a back shell (211) and a flip cover (212); The back cover (211) is used to cover the electronic device (100); The back cover (211) includes a first side (2111), and the flip cover (212) is rotatably connected to the first side (2111). The flip cover (212) is used to cover the surface of the electronic device (100) sleeved inside the back cover (211). The solar cell (220) is disposed on the flip cover (212).

9. The protective shell according to claim 8, characterized in that, The charging and discharging circuit (230) is located on the back cover (211).

10. The protective shell according to claim 8, characterized in that, The back cover (211) and the flip cover (212) are detachably connected.

11. The protective shell according to claim 10, characterized in that, The charging and discharging circuit (230) is disposed on the back shell (211), and the back shell (211) is also provided with a first connector (2115), and the charging and discharging circuit (230) is electrically connected to the first connector (2115); The flip cover (212) is also provided with a second connector (2121), and the solar cell (220) is electrically connected to the second connector (2121); The first connector (2115) is detachably connected to the second connector (2121), and the charging and discharging circuit (230) and the solar cell (220) are electrically connected through the first connector (2115) and the second connector (2121).

12. The protective shell according to any one of claims 1-7, characterized in that, The charging and discharging circuit (230) includes a charging and discharging control circuit (231), a charging component (232), and an energy storage battery (233); The solar cell (220), the electrochromic structure layer (240), the charging component (232), and the energy storage battery (233) are all electrically connected to the charging and discharging control circuit (231).

13. The protective shell according to claim 12, characterized in that, The charging component (232) includes a wireless charging coil (2321); The wireless charging coil (2321) is electrically connected to the charging and discharging control circuit (231).

14. The protective shell according to any one of claims 1-7, characterized in that, It also includes an enhanced antenna (290); The housing assembly (210) includes a second side (2112) and a third side (2113), the second side (2112) and the third side (2113) being located on opposite sides of the housing assembly (210); The enhanced antenna (290) is located outside the housing assembly (210). The enhanced antenna (290) includes a connecting part (291) and a main body part (292). One end of the connecting part (291) is fixedly connected to the main body part (292), and the other end of the connecting part (291) is rotatably connected to the second side (2112). The enhanced antenna (290) is rotatable relative to the housing assembly (210) between an unfolded position and a folded position; When the enhanced antenna (290) is in the folded position, the main body (292) is located between the second side (2112) and the third side (2113); When the enhanced antenna (290) is in the deployed position, the main body (292) is located on the side of the second side (2112) away from the third side (2113).

15. The protective shell according to claim 14, characterized in that, The connecting part (291) is rotatable about a rotation axis that extends at both ends along the extension direction of the second side (2112).

16. The protective shell according to claim 15, characterized in that, The connecting part (291) is rotatably connected to the second side (2112) through a damping structure.

17. The protective shell according to claim 14, characterized in that, The main body (292) has a ring-shaped structure.

18. The protective shell according to claim 17, characterized in that, The connecting part (291) is rotatable about a rotation axis that extends at both ends along the extension direction of the second side (2112); The housing assembly (210) has a clearance hole (2116); When the enhanced antenna (290) is in the folded position, the main body (292) surrounds the clearance hole (2116).

19. The protective shell according to claim 14, characterized in that, The second side (2112) is located on top of the housing assembly (210).

20. An electronic device component, characterized in that, Includes an electronic device (100) and a protective housing (200) as described in any one of claims 1-19; The protective case (200) is used to cover the electronic device (100), and the charging and discharging circuit (230) of the protective case (200) can be used to charge the electronic device (100).

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