Electronic equipment protective sleeve

Abstract

The invention discloses a protective sleeve for electronic equipment. The electronic equipment protective sleeve comprises at least two photovoltaic modules, a first sleeve body, a second sleeve body and a protective shell, the first sleeve body is provided with a first surface and a second surface which are opposite, and the second sleeve body is provided with a third surface and a fourth surface which are opposite; the first sleeve body is movably connected with the second sleeve body, at least part of the protective shell is fixed on the third surface, and the protected electronic equipment is detachably fixed in the protective shell; photovoltaic modules are arranged on at least two of the first surface, the second surface and the fourth surface, and the photovoltaic modules are used for charging protected electronic equipment. According to the technical scheme, the charging convenience of the protected electronic equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of electronic device protective cases, and more particularly to an electronic device protective case. Background Technology

[0002] With the rapid development of display technology, mobile display devices are becoming increasingly widely used. Mobile display devices include tablets and e-readers, among others.

[0003] Modern e-readers increasingly utilize e-paper technology, providing a paper-like reading experience. While e-paper readers consume far less power than traditional tablets, frequent use still necessitates regular charging, especially when traveling or out and about, as charging with AC power is inconvenient. Summary of the Invention

[0004] This invention provides a protective case for electronic devices, solving the problem of inconvenient charging of mobile display devices.

[0005] According to one aspect of the present invention, an electronic device protective case is provided, the electronic device protective case comprising: at least two photovoltaic modules, a first body, a second body, and a protective shell; the first body having opposing first and second surfaces, and the second body having opposing third and fourth surfaces;

[0006] The first housing is movably connected to the second housing, at least a portion of the protective shell is fixed to the third surface, and the protected electronic device is detachably fixed in the protective shell;

[0007] The photovoltaic module is disposed on at least two of the first surface, the second surface and the fourth surface, and the photovoltaic module is used to charge the protected electronic device.

[0008] Optionally, the at least two photovoltaic modules include a first photovoltaic module, a second photovoltaic module, and a third photovoltaic module;

[0009] The first photovoltaic module is disposed on the first surface, the second photovoltaic module is disposed on the second surface, and the third photovoltaic module is disposed on the fourth surface;

[0010] The first photovoltaic module, the second photovoltaic module, and the third photovoltaic module are connected in parallel;

[0011] Preferably, the photovoltaic module has a first power output terminal and a second power output terminal, and the photovoltaic module is used to provide electrical energy to the protected electronic equipment through the first power output terminal and the second power output terminal;

[0012] Preferably, the first photovoltaic module includes a first photovoltaic component, the first end of the first photovoltaic component is the first power output terminal, and the second end of the first photovoltaic component is the second power output terminal.

[0013] Optionally, the electronic device protective case further includes a connecting structure, which is connected between the first case body and the second case body;

[0014] When the first body and the second body are in a folded state, the first surface, the second surface, the third surface and the fourth surface are stacked in sequence;

[0015] The second photovoltaic module includes a second photovoltaic module and a third photovoltaic module, wherein the second photovoltaic module and the third photovoltaic module extend along a first direction and are arranged along a second direction; wherein the second direction intersects the first direction;

[0016] The first end of the second photovoltaic module is the first power output terminal, the second end of the second photovoltaic module is connected to the first end of the third photovoltaic module, and the second end of the third photovoltaic module is the second power output terminal;

[0017] Preferably, at least one groove is provided on the second surface, and along the second direction, all the grooves are located between the second photovoltaic module and the third photovoltaic module;

[0018] Preferably, two grooves are provided on the second surface, the two grooves including a first groove and a second groove; the second photovoltaic module, the first groove, the second groove and the third photovoltaic module are arranged sequentially along the second direction;

[0019] The depths of the first groove and the second groove are both greater than or equal to one-third of the thickness of the first sleeve and less than or equal to two-thirds of the thickness of the first sleeve.

[0020] Optionally, the electronic device protective case further includes a connecting structure, which is connected between the first case body and the second case body;

[0021] When the first body and the second body are in a folded state, the first surface, the second surface, the third surface and the fourth surface are stacked in sequence;

[0022] The second photovoltaic module includes a second photovoltaic module, a third photovoltaic module, and a fourth photovoltaic module, wherein the second photovoltaic module, the third photovoltaic module, and the fourth photovoltaic module extend along a first direction and are arranged along a second direction; wherein the first direction intersects the second direction;

[0023] The first end of the second photovoltaic module is the first power output terminal, and the third photovoltaic module is connected between the second end of the second photovoltaic module and the first end of the fourth photovoltaic module, wherein the second end of the fourth photovoltaic module is the second power output terminal;

[0024] Preferably, a first groove and a second groove are provided on the second surface, and the second photovoltaic module, the first groove, the third photovoltaic module, the second groove and the fourth photovoltaic module are arranged sequentially along the second direction;

[0025] Preferably, the depths of the first groove and the second groove are both greater than or equal to one-third of the thickness of the first sleeve and less than or equal to two-thirds of the thickness of the first sleeve.

[0026] Optionally, the second body includes a first region, a second region, and a bent region, wherein the first region and the second region extend along a first direction, and the first region, the bent region, and the second region are arranged sequentially along a second direction; wherein the first direction intersects the second direction;

[0027] The third photovoltaic module includes a fifth photovoltaic module and a sixth photovoltaic module. The first end of the fifth photovoltaic module is the first power output end, the second end of the fifth photovoltaic module is connected to the first end of the sixth photovoltaic module, and the second end of the sixth photovoltaic module is the second power output end.

[0028] The fifth photovoltaic module is located in the first region, and the sixth photovoltaic module is located in the second region;

[0029] Preferably, a portion of the protective shell is fixed to the second region of the third surface.

[0030] Optionally, the electronic device protective case may further include an output module;

[0031] The photovoltaic module has a first power output terminal and a second power output terminal, and the photovoltaic module is used to provide electrical energy to the protected electronic equipment through the first power output terminal and the second power output terminal.

[0032] The first end of the output module is connected to the first power output terminal, and the second end of the output module is connected to the second power output terminal. The output module is used to charge the protected electronic device according to the output voltage of at least one of the photovoltaic modules.

[0033] Preferably, the output module includes a wired charging interface and / or a wireless charging coil;

[0034] The first end of the wired charging interface is the first end of the output module, the second end of the wired charging interface is the second end of the output module, and the third end of the wired charging interface is pluggably connected to the protected electronic device.

[0035] The first end of the wireless charging coil is the first end of the output module, and the second end of the wireless charging coil is the second end of the output module.

[0036] Optionally, the electronic device protective case may also include a power management module;

[0037] The power management module is connected between the photovoltaic module and the output module. The power management module is used to transmit the output voltage of the photovoltaic module to the output module when the ambient light intensity is greater than a first threshold.

[0038] Preferably, the power management module is located on the side of the third surface closer to the fourth surface, and the protective shell covers the power management module;

[0039] Preferably, the wireless charging coil is located on the side of the third surface near the fourth surface, and the protective shell covers the wireless charging coil;

[0040] The wired charging interface is connected to the power management module via a charging cable, at least a portion of which is located on the side of the third surface near the fourth surface, and the protective shell covers at least a portion of the charging cable.

[0041] Optionally, the power management module includes a first control unit, a voltage conversion unit, an energy storage unit, a first switching unit, a second switching unit, and a third switching unit;

[0042] The input terminal of the voltage conversion unit is connected to the photovoltaic module, and the voltage conversion unit is used to convert the output voltage of the photovoltaic module;

[0043] The first terminal of the first switching unit is connected to the output terminal of the voltage conversion unit, and the second terminal of the first switching unit is connected to the first terminal of the output module and the second terminal of the output module, respectively; the first switching unit is used to transmit the converted voltage output by the voltage conversion unit to the output module when it is turned on.

[0044] The first terminal of the second switching unit is connected to the output terminal of the voltage conversion unit, and the second terminal of the second switching unit is connected to the first terminal of the energy storage unit and the second terminal of the energy storage unit respectively; the second switching unit is used to transmit the converted voltage output by the voltage conversion unit to the energy storage unit when it is turned on, so as to charge the energy storage unit;

[0045] The first end of the third switching unit is connected to the first end of the energy storage unit, the second end of the third switching unit is connected to the second end of the energy storage unit, the third end of the third switching unit is connected to the first end of the output module, and the fourth end of the third switching unit is connected to the second end of the output module; the energy storage unit is used to charge the protected electronic device through the output module when the third switching unit is turned on.

[0046] The first control unit is connected to the control terminals of the first switch unit, the second switch unit, and the third switch unit, respectively. The first control unit is used to control the first switch unit to be turned on and the second and third switch units to be turned off when the ambient light intensity is greater than a second threshold; to control the first switch unit to be turned off and the second and third switch units to be turned on when the ambient light intensity is greater than the first threshold and less than or equal to the second threshold; and to control the third switch unit to be turned on and the first and second switch units to be turned off when the ambient light intensity is less than or equal to the first threshold.

[0047] Preferably, the first switching unit includes a first switch and a second switch, the first switch being connected between the first output terminal of the voltage conversion unit and the first terminal of the output module, and the second switch being connected between the second output terminal of the voltage conversion unit and the second terminal of the output module;

[0048] The second switching unit includes a third switch and a fourth switch. The third switch is connected between the first output terminal of the voltage conversion unit and the first terminal of the energy storage unit, and the fourth switch is connected between the second output terminal of the voltage conversion unit and the second terminal of the energy storage unit.

[0049] The third switching unit includes a fifth switch and a sixth switch. The fifth switch is connected between the first end of the energy storage unit and the first end of the output module, and the sixth switch is connected between the second end of the energy storage unit and the second end of the output module.

[0050] Optionally, the power management module further includes a second control unit, which is connected to the control terminals of the photovoltaic module and the voltage conversion unit respectively. The second control unit is used to control the output parameters of the voltage conversion unit according to the output electrical parameters of the photovoltaic module, so that the photovoltaic module operates at the maximum power output point.

[0051] Preferably, the power management module further includes a filtering unit;

[0052] The filtering unit is connected between the photovoltaic module and the voltage conversion unit, and the second control unit is connected to the filtering unit.

[0053] Optionally, the photovoltaic modules in the photovoltaic module are crystalline silicon photovoltaic modules, copper indium gallium selenide photovoltaic modules, cadmium telluride photovoltaic modules, or perovskite photovoltaic modules;

[0054] Preferably, the photovoltaic module in the photovoltaic module is a perovskite photovoltaic module;

[0055] Preferably, the photovoltaic module in the photovoltaic module is a flexible perovskite photovoltaic module.

[0056] The technical solution of this invention provides an electronic device protective case that includes at least two photovoltaic modules. Each photovoltaic module can include a photovoltaic component, converting ambient light into electrical energy to power the protected electronic device, thus avoiding the inconvenience of charging the protected electronic device using mains power. Furthermore, photovoltaic modules are disposed on at least two of the first, second, and fourth surfaces, ensuring that the photovoltaic modules receive ambient light regardless of whether the electronic device protective case is folded or unfolded. Even when the electronic device protective case is folded, regardless of which side faces upwards, the photovoltaic modules still receive ambient light. This guarantees that the photovoltaic modules can power the protected electronic device.

[0057] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0059] Figure 1 This is a view of the fourth surface of an electronic device protective case in an unfolded state, as provided in an embodiment of the present invention.

[0060] Figure 2 This is a view of the third surface of an electronic device protective case in an unfolded state, according to an embodiment of the present invention.

[0061] Figure 3 This is a schematic diagram of the circuit structure of an electronic device protective case provided in an embodiment of the present invention;

[0062] Figure 4This is a view of the third surface of another electronic device protective case provided in an embodiment of the present invention in an unfolded state;

[0063] Figure 5 This is a schematic diagram of the circuit structure of another electronic device protective case provided in an embodiment of the present invention;

[0064] Figure 6 This is a schematic diagram of the structure of an electronic device protective case provided in an embodiment of the present invention;

[0065] Figure 7 This is a view of the third surface of another electronic device protective case in an unfolded state, provided by an embodiment of the present invention;

[0066] Figure 8 This is a schematic diagram of the circuit structure of another electronic device protective case provided in an embodiment of the present invention;

[0067] Figure 9 This is a schematic diagram of the structure of another electronic device protective case provided in an embodiment of the present invention. Detailed Implementation

[0068] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0069] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention 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 the embodiments of the invention described herein can be implemented 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 steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0070] As mentioned in the background section, existing mobile display devices suffer from inconvenient charging. The inventors discovered that this problem arises because mobile display devices require AC power for charging. To protect mobile display devices from impacts and other damage, protective cases can be used. However, existing protective cases for mobile display devices are limited in function; they cannot charge the devices, thus failing to improve battery life and ease of use, further contributing to the inconvenience of charging.

[0071] To address the aforementioned technical problems, embodiments of the present invention provide a protective case for electronic devices. Figure 1 This is a view of the fourth surface of an electronic device protective case in its unfolded state, according to an embodiment of the present invention. Figure 2 This is a view of the third surface of an electronic device protective case in its unfolded state, as provided in an embodiment of the present invention. Figure 1 and Figure 2 As shown, the electronic device protective case includes: at least two photovoltaic modules 110, a first housing 120, a second housing 130, and a protective shell 140; the first housing 120 has a first surface A1 and a second surface A2 opposite to each other, and the second housing 130 has a third surface A3 and a fourth surface A4 opposite to each other.

[0072] The first body 120 is movably connected to the second body 130, at least a portion of the protective shell 140 is fixed to the third surface A3, and the protected electronic device is detachably fixed in the protective shell 140.

[0073] A photovoltaic module 110 is disposed on at least two of the first surface A1, the second surface A2 and the fourth surface A4. The photovoltaic module 110 is used to charge the protected electronic device.

[0074] The electronic device may include a mobile display device. It is understood that the electronic device protective case can be in an unfolded state and a closed state (i.e., a folded state). When the electronic device protective case is in the unfolded state, the electronic device can be used. When the electronic device is not in use, the electronic device protective case can be closed, placing it in the closed state (i.e., the folded state). The first housing 120 and the second housing 130 are movably connected, allowing the first housing 120 and the second housing 130 to move relative to each other, enabling the electronic device protective case to be in different states (unfolded state or folded state).

[0075] The protected electronic device is detachably fixed in the protective housing 140, so that when the protected electronic device is in the protective housing 140, the protective housing 140 can protect the protected electronic device.

[0076] At least a portion of the protective case 140 is fixed to the third surface A3; that is, the protective case 140 can be completely fixed to the third surface A3. Alternatively, a portion of the protective case 140 can be fixed to the third surface A3, allowing another portion of the protective case 140 to move relative to the third surface A3. This allows adjustment of the position of the protective case 140 when using the protected electronic device, thereby adjusting the viewing angle of the protected electronic device within the protective case 140, i.e., adjusting the relative angle between the protected electronic device and the user's eye, facilitating the use of the protected electronic device. The unfolded state of the electronic device protective case can include a fully unfolded state and a partially unfolded state. In the fully unfolded state, the protective case 140 is located on the third surface A3; in the partially unfolded state, a portion of the protective case 140 is located on the third surface A3. Figure 1 and Figure 2 The image shows the electronic device protective case in its fully extended state, but is not limited to that state.

[0077] Specifically, the photovoltaic module 110 may include a photovoltaic component, which is a solar cell, that can convert light energy into electrical energy for output, thereby powering the protected electronic device and avoiding the inconvenience of charging the protected electronic device using mains power. Furthermore, the photovoltaic module 110 is disposed on at least two of the first surface A1, the second surface A2, and the fourth surface A4. For example, the photovoltaic module 110 is disposed on the first surface A1 and the second surface A2, or on the fourth surface A4 and the second surface A2, so that when the electronic device protective case is in both the unfolded and folded states, the photovoltaic module 110 receives ambient light and converts it into electrical energy. Alternatively, the photovoltaic module 110 is disposed on both the first surface A1 and the fourth surface A4, so that when the electronic device protective case is in the folded state, regardless of which side faces upwards, the photovoltaic module 110 receives ambient light and converts it into electrical energy. Alternatively, photovoltaic modules 110 can be installed on the first surface A1, the second surface A2, and the fourth surface A4, so that the photovoltaic modules 110 can receive ambient light whether the electronic device protective case is folded or unfolded. Furthermore, when the electronic device protective case is folded, regardless of which side (first surface A1 or fourth surface A4) faces upwards, the photovoltaic modules 110 can receive ambient light. This ensures that the photovoltaic modules 110 can supply power to the protected electronic device.

[0078] Different photovoltaic modules 110 can be connected in series to provide power to the protected electronic equipment, or they can be connected in parallel to provide power to the protected electronic equipment. Alternatively, a number of photovoltaic modules 110 can be connected in series and then connected in parallel with other photovoltaic modules 110 to provide power to the protected electronic equipment. No limitation is imposed here.

[0079] In this embodiment, the electronic device protective case includes at least two photovoltaic modules. Each photovoltaic module can include a photovoltaic component, which converts ambient light into electrical energy to power the protected electronic device, thus avoiding the inconvenience of charging the protected electronic device using mains power. Furthermore, photovoltaic modules are disposed on at least two of the first, second, and fourth surfaces, ensuring that the photovoltaic modules receive ambient light regardless of whether the electronic device protective case is folded or unfolded. Even when the electronic device protective case is folded, regardless of which side faces upwards, the photovoltaic modules still receive ambient light. This guarantees that the photovoltaic modules can power the protected electronic device.

[0080] Based on the above technical solutions, Figure 3 This is a schematic diagram of the circuit structure of an electronic device protective case provided by an embodiment of the present invention. Optionally, as shown... Figure 1 , Figure 2 and Figure 3 As shown, at least two photovoltaic modules 110 include a first photovoltaic module 110a, a second photovoltaic module 110b, and a third photovoltaic module 110c;

[0081] The first photovoltaic module 110a is disposed on the first surface A1, the second photovoltaic module 110b is disposed on the second surface A2, and the third photovoltaic module 110c is disposed on the fourth surface A4;

[0082] The first photovoltaic module 110a, the second photovoltaic module 110b, and the third photovoltaic module 110c are connected in parallel.

[0083] Specifically, by setting a first photovoltaic module 110a, a second photovoltaic module 110b, and a third photovoltaic module 110c, with the first photovoltaic module 110a set on the first surface A1, the second photovoltaic module 110b set on the second surface A2, and the third photovoltaic module 110c set on the fourth surface A4, photovoltaic modules 110 are set on the first surface A1, the second surface A2, and the fourth surface A4, so that the electronic device protective case has photovoltaic modules 110 receiving ambient light whether it is folded or unfolded, and when the electronic device protective case is folded, photovoltaic modules 110 receive ambient light regardless of which side is placed upwards.

[0084] By setting the first photovoltaic module 110a, the second photovoltaic module 110b, and the third photovoltaic module 110c to be connected in parallel, the protected electronic equipment can be powered when at least one of the three photovoltaic modules can output electrical energy, thus ensuring the reliability of the power supply and improving the user experience.

[0085] Optionally, such as Figure 3As shown, the photovoltaic module 110 has a first power output terminal B1 and a second power output terminal B2. The photovoltaic module 110 is used to provide electrical energy to the protected electronic equipment through the first power output terminal B1 and the second power output terminal B2.

[0086] Specifically, the protected electronic device can be connected to the first power output terminal B1 and the second power output terminal B2, thereby enabling the photovoltaic module 110 to provide power to the protected electronic device. The first power output terminal B1 can be a positive voltage output terminal and the second power output terminal B2 can be a negative voltage output terminal, or the first power output terminal B1 can be a negative voltage output terminal and the second power output terminal B2 can be a positive voltage output terminal; no limitation is made here.

[0087] Based on the above technical solutions, the possible structures of the first photovoltaic module 110a, the second photovoltaic module 110b, and the third photovoltaic module 110c will be described below, but this is not intended to limit the scope of this application.

[0088] Optionally, such as Figure 3 As shown, the first photovoltaic module 110a includes a first photovoltaic module 111, the first end of the first photovoltaic module 111 is a first power output terminal B1, and the second end of the first photovoltaic module 111 is a second power output terminal B2.

[0089] Specifically, the first photovoltaic module 110a includes a first photovoltaic module 111, that is, a whole photovoltaic module can be set on the first surface A1, which can reduce the gap loss between modules and reduce wiring.

[0090] In one implementation, such as Figure 1 or Figure 2 As shown, the electronic device protective case also includes a connecting structure 150, which is connected between the first body 120 and the second body 130.

[0091] When the first body 120 and the second body 130 are in a folded state, the first surface A1, the second surface A2, the third surface A3 and the fourth surface A4 are stacked in sequence.

[0092] Figure 4 This is a view of the third surface of another electronic device protective case provided in an embodiment of the present invention in its unfolded state, as shown below. Figure 4 As shown, the second photovoltaic module 110b includes a second photovoltaic module 112 and a third photovoltaic module 113, which extend along a first direction Y and are arranged along a second direction X; wherein the second direction X intersects (e.g., is perpendicular to) the first direction Y.

[0093] Figure 5 This is a schematic diagram of the circuit structure of another electronic device protective case provided in an embodiment of the present invention, as shown below. Figure 5 As shown, the first end of the second photovoltaic module 112 is the first power output terminal B1, the second end of the second photovoltaic module 112 is connected to the first end of the third photovoltaic module 113, and the second end of the third photovoltaic module 113 is the second power output terminal B2.

[0094] The connecting structure 150 is a flexible structure, which allows the electronic device protective case to be in an unfolded state (flat state) when the connecting structure 150 is in an unfolded state (flat state) and the electronic device protective case to be in a folded state when the connecting structure 150 is in a bent state.

[0095] When the first set 120 and the second set 130 are in a folded state, i.e., when the electronic device protective case is in a folded state, the first surface A1, the second surface A2, the third surface A3, and the fourth surface A4 are stacked sequentially. When the electronic device protective case is in a folded state, the first photovoltaic module 110a on the first surface A1 or the third photovoltaic module 110c on the fourth surface A4 can convert ambient light into electrical energy. When the electronic device protective case is in an unfolded state, the first photovoltaic module 110a on the first surface A1 and the third photovoltaic module 110c on the fourth surface A4 can convert ambient light into electrical energy, or the second photovoltaic module 110b on the second surface A2 can convert ambient light into electrical energy.

[0096] Specifically, the second photovoltaic module 110b includes a second photovoltaic module 112 and a third photovoltaic module 113, allowing for targeted repair when one of the photovoltaic modules on the second surface A2 fails. Furthermore, even when part of the second surface A2 is shaded, the photovoltaic modules on the other part can continue to convert light energy into electrical energy; for example, even when the second photovoltaic module 112 is shaded, the third photovoltaic module 113 can still convert light energy into electrical energy. The first end of the second photovoltaic module 112 is the first power output terminal B1, and the second end of the second photovoltaic module 112 is connected to the first end of the third photovoltaic module 113. The second end of the third photovoltaic module 113 is the second power output terminal B2. That is, the second photovoltaic module 112 and the third photovoltaic module 113 are connected in series, resulting in a higher output voltage from the second photovoltaic module 110b, which facilitates charging of the protected electronic equipment.

[0097] Optionally, such as Figure 4 As shown, at least one groove C1 is provided on the second surface A2, and all grooves C1 are located between the second photovoltaic module 112 and the third photovoltaic module 113 along the second direction X. By providing grooves C1, when a part of the protective shell 140 is not in contact with the third surface A3, that is, when the protective shell 140 moves relative to the third surface A3, the protected electronic device can be moved, and the movable edge of the protective shell 140 can be placed in the groove C1, thereby supporting the protected electronic device, changing the angle of the protected electronic device, and facilitating its use.

[0098] Figure 6 This is a schematic diagram of the structure of an electronic device protective case provided in an embodiment of the present invention. Optionally, as shown... Figure 6 As shown, two grooves C1 are provided on the second surface A2, and the two grooves C1 include a first groove C01 and a second groove C02; the second photovoltaic module 112, the first groove C01, the second groove C02 and the third photovoltaic module 113 are arranged sequentially along the second direction X;

[0099] The depths of the first groove C01 and the second groove C02 are both greater than or equal to one-third of the thickness of the first body 120, and less than or equal to two-thirds of the thickness of the first body 120.

[0100] Specifically, by setting the first groove C01 and the second groove C02, the angle of the protected electronic device when the movable edge of the protective shell 140 is placed in the first groove C01 is different from the angle of the protected electronic device 200 when the movable edge of the protective shell 140 is placed in the second groove C02. This can meet the different viewing needs of users and thus improve the user experience. Figure 6 The illustration shows the protective housing 140 and the protected electronic device 200 in the second recess C02, but is not limiting. When the protective housing 140 and the protected electronic device 200 are in the recess C1, the electronic device protective cover is in a partially unfolded state.

[0101] The depths of the first groove C01 and the second groove C02 are both greater than or equal to one-third of the thickness of the first housing 120 and less than or equal to two-thirds of the thickness of the first housing 120, which can ensure the reliability of the support for the protective shell 140 and the protected electronic device 200.

[0102] In another implementation, such as Figure 1 or Figure 2 As shown, the electronic device protective case also includes a connecting structure 150, which is connected between the first body 120 and the second body 130.

[0103] When the first body 120 and the second body 130 are in a folded state, the first surface A1, the second surface A2, the third surface A3 and the fourth surface A4 are stacked in sequence.

[0104] Figure 7 This is a view of the third surface of another electronic device protective case provided in the embodiment of the present invention in its unfolded state, as shown in the figure. Figure 7As shown, the second photovoltaic module 110b includes a second photovoltaic module 112, a third photovoltaic module 113, and a fourth photovoltaic module 114. The second photovoltaic module 112, the third photovoltaic module 113, and the fourth photovoltaic module 114 extend along a first direction Y and are arranged along a second direction X; wherein the first direction Y intersects (e.g., is perpendicular to) the second direction X.

[0105] Figure 8 This is a schematic diagram of the circuit structure of another electronic device protective case provided in an embodiment of the present invention, as shown below. Figure 8 As shown, the first end of the second photovoltaic module 112 is the first power output terminal B1, the third photovoltaic module 113 is connected between the second end of the second photovoltaic module 112 and the first end of the fourth photovoltaic module 114, and the second end of the fourth photovoltaic module 114 is the second power output terminal B2.

[0106] Specifically, the second photovoltaic module 110b includes a second photovoltaic module 112, a third photovoltaic module 113, and a fourth photovoltaic module 114, allowing for targeted repair when one photovoltaic module on the second surface A2 fails. Furthermore, even when part of the second surface A2 is shaded, the photovoltaic modules on the remaining portion can continue to convert light energy into electrical energy. For example, even when the second photovoltaic module 112 is shaded, the third photovoltaic module 113 and the fourth photovoltaic module 114 can still convert light energy into electrical energy. This also maximizes space utilization, allowing for the installation of more photovoltaic modules.

[0107] The first end of the second photovoltaic module 112 is the first power output terminal B1. The third photovoltaic module 113 is connected between the second end of the second photovoltaic module 112 and the first end of the fourth photovoltaic module 114. The second end of the fourth photovoltaic module 114 is the second power output terminal B2. This allows the second photovoltaic module 112, the third photovoltaic module 113 and the fourth photovoltaic module 114 to be connected in series, resulting in a larger output voltage of the second photovoltaic module 110b, which is convenient for charging the protected electronic equipment.

[0108] Optionally, such as Figure 7 As shown, a first groove C01 and a second groove C02 are provided on the second surface A2. The second photovoltaic module 112, the first groove C01, the third photovoltaic module 113, the second groove C02, and the fourth photovoltaic module 114 are arranged sequentially along the second direction X. This ensures that the angle of the protected electronic device 200 when the movable edge of the protective shell 140 is placed in the first groove C01 is different from the angle when the movable edge of the protective shell 140 is placed in the second groove C02, thus meeting different viewing needs of users and improving the user experience. Furthermore, it maximizes space utilization, allowing for the installation of more photovoltaic modules.

[0109] Optionally, the depths of the first groove C01 and the second groove C02 are both greater than or equal to one-third of the thickness of the first housing 120, and less than or equal to two-thirds of the thickness of the first housing 120. This ensures the reliability of the support for the protective shell 140 and the protected electronic device 200.

[0110] Optionally, such as Figure 1 As shown, the second body 130 includes a first region D1, a second region D2, and a bending region D3. The first region D1 and the second region D2 extend along the first direction Y, and the first region D1, the bending region D3, and the second region D2 are arranged sequentially along the second direction X; wherein the first direction Y intersects the second direction X.

[0111] The third photovoltaic module 110c includes a fifth photovoltaic module 115 and a sixth photovoltaic module 116. The first end of the fifth photovoltaic module 115 is the first power output terminal B1, the second end of the fifth photovoltaic module 115 is connected to the first end of the sixth photovoltaic module 116, and the second end of the sixth photovoltaic module 116 is the second power output terminal B2.

[0112] The fifth photovoltaic module 115 is located in the first region D1, and the sixth photovoltaic module 116 is located in the second region D2.

[0113] The second body 130 is a flexible structure at least in the bending region D3. The bending region D3 is bendable, and when the bending region D3 is bent, the movable edge of the protective shell 140 can be set in the groove C1 to form... Figure 6 The angle shown.

[0114] Specifically, by positioning the fifth photovoltaic module 115 in the first region D1 and the sixth photovoltaic module 116 in the second region D2, damage to the photovoltaic modules caused by frequent bending can be avoided, ensuring the reliability of power supply. The first end of the fifth photovoltaic module 115 is the first power output terminal B1, and the second end of the fifth photovoltaic module 115 is connected to the first end of the sixth photovoltaic module 116. The second end of the sixth photovoltaic module 116 is the second power output terminal B2, which connects the fifth photovoltaic module 115 and the sixth photovoltaic module 116 in series. This results in a higher output voltage for the third photovoltaic module 110c, facilitating the charging of the protected electronic equipment.

[0115] Optionally, a portion of the protective shell 140 is fixed to the second region D2 of the third surface A3. For example, a portion of the protective shell 140 is adhered to the second region D2 of the third surface A3. This allows the portion of the protective shell 140 corresponding to the first region D1 to move relative to the third surface A3, enabling movement of the protected electronic device. The movable edge of the protective shell 140 is placed in the groove C1, thereby supporting the protected electronic device, changing the angle of the protected electronic device, and facilitating its use.

[0116] Based on the above technical solutions, optionally, such as Figure 5 or Figure 8 As shown, the electronic device protective case also includes an output module 160;

[0117] The photovoltaic module 110 has a first power output terminal B1 and a second power output terminal B2. The photovoltaic module 110 is used to provide electrical energy to the protected electronic equipment through the first power output terminal B1 and the second power output terminal B2.

[0118] The first end of the output module 160 is connected to the first power output terminal B1, and the second end of the output module 160 is connected to the second power output terminal B2. The output module 160 is used to charge the protected electronic device according to the output voltage of at least one photovoltaic module 110.

[0119] Specifically, the output module 160 is connected to or in contact with the protected electronic device, transmitting the output voltage of the photovoltaic module 110 to the protected electronic device, thereby charging or supplying power to the protected electronic device.

[0120] Optionally, such as Figure 5 or Figure 8 As shown, the output module 160 includes a wired charging interface 161 and / or a wireless charging coil 162;

[0121] The first end of the wired charging interface 161 is the first end of the output module 160, the second end of the wired charging interface 161 is the second end of the output module 160, and the third end of the wired charging interface 161 is pluggably connected to the protected electronic device.

[0122] The first end of the wireless charging coil 162 is the first end of the output module 160, and the second end of the wireless charging coil 162 is the second end of the output module 160.

[0123] Specifically, the wired charging interface 161 may include a USB charging interface, etc. The third end of the wired charging interface 161 is a voltage output end, which can be plugged and plugged into the protected electronic device. When the protected electronic device is connected to the third end of the wired charging interface 161, the wired charging interface 161 can transmit the voltage output by the photovoltaic module 110 to the protected electronic device to supply power to the protected electronic device.

[0124] The wireless charging coil 162 can transmit the voltage output by the photovoltaic module 110 in the form of electromagnetic waves. When the protected electronic device comes into contact with or is close to the wireless charging coil 162, the receiving coil in the protected electronic device can receive the electromagnetic waves. The charging circuit in the protected electronic device converts the electromagnetic waves into voltage, thereby supplying power to the protected electronic device.

[0125] When the output module 160 includes a wired charging interface 161 and a wireless charging coil 162, it allows users to easily select between wired and wireless charging methods according to their needs, thus improving the user experience.

[0126] Optionally, such as Figure 5 or Figure 8 As shown, the electronic device protective case also includes a power management module 170;

[0127] The power management module 170 is connected between the photovoltaic module 110 and the output module 160. The power management module 170 is used to transmit the output voltage of the photovoltaic module 110 to the output module 160 when the ambient light intensity is greater than a first threshold.

[0128] Ambient illuminance is the luminous flux received per unit area, reflecting the degree to which an object's surface is illuminated by light.

[0129] Specifically, the power management module 170 may include a controller and a voltage conversion circuit, etc. The controller can control whether the voltage conversion circuit outputs voltage to the output module 160, that is, whether the output voltage of the photovoltaic module 110 is used to power the protected electronic equipment. When the ambient illuminance is greater than a first threshold, it indicates that the ambient illuminance is high, and the output voltage of the photovoltaic module 110 can maintain power supply to the protected electronic equipment. The power management module 170 outputs voltage to the output module 160, thereby using the photovoltaic module 110 to power the protected electronic equipment. When the ambient illuminance is less than or equal to the first threshold, it indicates that the ambient illuminance is low, and the output voltage of the photovoltaic module 110 may not be able to maintain power supply to the protected electronic equipment. In this case, the power management module 170 will not output voltage to the output module 160 to avoid reverse charging. The first threshold can be any value between 20 lux and 60 lux, for example, it can be 50 lux, and is not limited here.

[0130] Figure 9 This is a schematic diagram of the structure of another electronic device protective case provided in an embodiment of the present invention. Optionally, as shown... Figure 9 As shown, the power management module 170 is located on the third surface A3 near the fourth surface A4, and the protective shell 140 covers the power management module 170. That is, the power management module 170 can be positioned on the third surface A3 away from the protective shell 140, preventing it from being exposed and thus protecting it. An encapsulation layer can be provided between the power management module 170 and the protective shell 140, with the third surface A3 being the surface of the encapsulation layer closest to the protective shell 140, further protecting the power management module 170 and extending the lifespan of the electronic device protective case.

[0131] It needs to be explained that, Figure 9For the purpose of showing the power management module 170, the protective housing 140 is not shown.

[0132] Optionally, such as Figure 9 As shown, the wireless charging coil 162 is located on the third surface A3 near the fourth surface A4, and the protective shell 140 covers the wireless charging coil 162. The wired charging interface 161 is connected to the power management module 170 via a charging cable L1. At least a portion of the charging cable L1 is located on the third surface A3 near the fourth surface A4, and the protective shell 140 covers at least a portion of the charging cable L1. In other words, the wireless charging coil 162 and at least a portion of the charging cable L1 can be positioned on the third surface A3 away from the protective shell 140, preventing the wireless charging coil 162 and the charging cable L1 from being completely exposed, thus protecting them. An encapsulation layer can be provided between the wireless charging coil 162 and at least a portion of the charging cable L1 and the protective shell 140, with the third surface A3 being the surface of the encapsulation layer near the protective shell 140, further protecting the wireless charging coil 162 and the charging cable L1 and extending the lifespan of the electronic device protective case.

[0133] Optionally, the power management module 170 includes a first control unit 171, a voltage conversion unit 172, an energy storage unit 173, a first switching unit 174, a second switching unit 175, and a third switching unit 176;

[0134] The input terminal of the voltage conversion unit 172 is connected to the photovoltaic module 110, and the voltage conversion unit 172 is used to convert the output voltage of the photovoltaic module 110;

[0135] The first terminal of the first switching unit 174 is connected to the output terminal of the voltage conversion unit 172, and the second terminal of the first switching unit 174 is connected to the first terminal and the second terminal of the output module 160 respectively; the first switching unit 174 is used to transmit the converted voltage output by the voltage conversion unit 172 to the output module 160 when it is turned on.

[0136] The first terminal of the second switching unit 175 is connected to the output terminal of the voltage conversion unit 172, and the second terminal of the second switching unit 175 is connected to the first terminal of the energy storage unit 173 and the second terminal of the energy storage unit 173 respectively. The second switching unit 175 is used to transmit the converted voltage output by the voltage conversion unit 172 to the energy storage unit 173 when it is turned on, so as to charge the energy storage unit 173.

[0137] The first end of the third switching unit 176 is connected to the first end of the energy storage unit 173, the second end of the third switching unit 176 is connected to the second end of the energy storage unit 173, the third end of the third switching unit 176 is connected to the first end of the output module 160, and the fourth end of the third switching unit 176 is connected to the second end of the output module 160; the energy storage unit 173 is used to charge the protected electronic device through the output module 160 when the third switching unit 176 is turned on.

[0138] The first control unit 171 is connected to the control terminals of the first switch unit 174, the second switch unit 175, and the third switch unit 176, respectively. The first control unit 171 is used to control the first switch unit 174 to be turned on and the second switch unit 175 and the third switch unit 176 to be turned off when the ambient light intensity is greater than the second threshold; to control the first switch unit 174 to be turned off and the second switch unit 175 and the third switch unit 176 to be turned on when the ambient light intensity is greater than the first threshold and less than or equal to the second threshold; and to control the third switch unit 176 to be turned on and the first switch unit 174 and the second switch unit 175 to be turned off when the ambient light intensity is less than or equal to the first threshold.

[0139] The first control unit 171 may include a microcontroller or other controller, and can be connected to an ambient light sensor (such as a lux meter) to acquire ambient light intensity. The voltage conversion unit 172 may include a voltage conversion circuit, which can convert the voltage output from the photovoltaic module 110, for example, by boosting or bucking it, to output a voltage that meets the requirements of the protected electronic equipment. The energy storage unit 173 may include a capacitor.

[0140] Specifically, the second threshold is greater than the first threshold. The first control unit 171 compares the ambient light intensity with the first and second thresholds respectively. When the ambient light intensity is greater than the second threshold, it indicates that the ambient light intensity is high. The first control unit 171 controls the first switching unit 174 to be turned on and the second switching unit 175 and the third switching unit 176 to be turned off, so that the voltage output by the voltage conversion unit 172 can directly power the protected electronic equipment through the output module 160. When the ambient light intensity is greater than the first threshold and less than or equal to the second threshold, it indicates that the ambient light intensity is high. The first switching unit 174 can be turned off and the second switching unit 175 and the third switching unit 176 can be turned on, so that the voltage output by the voltage conversion unit 172 first charges the energy storage unit 173. After the energy storage unit 173 is fully charged, the energy storage unit 173 outputs voltage to the output module 160 through the third switching unit 176, thereby powering the protected electronic equipment through the output module 160. When the ambient light intensity is less than or equal to the first threshold, it indicates that the ambient light intensity is low and the output voltage of the photovoltaic module 110 may not be able to maintain power supply for the protected electronic equipment. The first control unit 171 controls the first switch unit 174 and the second switch unit 175 to turn off and controls the third switch unit 176 to turn on. The energy storage unit 173 charges the protected electronic equipment through the output module 160. The photovoltaic module 110 will not output voltage to the output module 160 to avoid reverse charging.

[0141] The second threshold can be any value between 100 lux and 300 lux, for example, 200 lux, and is not limited here.

[0142] Optionally, such as Figure 5 or Figure 8 As shown, the first switching unit 174 includes a first switch S1 and a second switch S2. The first switch S1 is connected between the first output terminal of the voltage conversion unit 172 and the first terminal of the output module 160, and the second switch S2 is connected between the second output terminal of the voltage conversion unit 172 and the second terminal of the output module 160.

[0143] The second switching unit 175 includes a third switch S3 and a fourth switch S4. The third switch S3 is connected between the first output terminal of the voltage conversion unit 172 and the first terminal of the energy storage unit 173, and the fourth switch S4 is connected between the second output terminal of the voltage conversion unit 172 and the second terminal of the energy storage unit 173.

[0144] The third switching unit 176 includes a fifth switch S5 and a sixth switch S6. The fifth switch S5 is connected between the first end of the energy storage unit 173 and the first end of the output module 160, and the sixth switch S6 is connected between the second end of the energy storage unit 173 and the second end of the output module 160.

[0145] Among them, the first switch S1, the second switch S2, the third switch S3, the fourth switch S4, the fifth switch S5 and the sixth switch S6 are controllable switches, which can be transistors or metal oxide semiconductor field-effect transistors (MOS transistors).

[0146] The output terminals of the voltage conversion unit 172 include a first output terminal and a second output terminal. For example, the first output terminal of the voltage conversion unit 172 may be a positive output terminal and the second output terminal of the voltage conversion unit 172 may be a negative output terminal, or the second output terminal of the voltage conversion unit 172 may be a positive output terminal and the first output terminal of the voltage conversion unit 172 may be a negative output terminal. No limitation is made here.

[0147] Specifically, when the ambient light intensity is greater than the second threshold, indicating high ambient light intensity, the first control unit 171 controls the first switch S1 and the second switch S2 to be turned on, so that the voltage output by the voltage conversion unit 172 can be directly used to power the protected electronic equipment through the output module 160. When the ambient light intensity is greater than the first threshold and less than or equal to the second threshold, indicating high ambient light intensity, the first switch S1 and the second switch S2 can be turned off, and the third switch S3, the fourth switch S4, the fifth switch S5 and the sixth switch S6 can be turned on, so that the voltage output by the voltage conversion unit 172 first charges the energy storage unit 173. After the energy storage unit 173 is fully charged, the energy storage unit 173 outputs voltage to the output module 160 through the fifth switch S5 and the sixth switch S6, thereby powering the protected electronic equipment through the output module 160. When the ambient light intensity is less than or equal to the first threshold, it indicates that the ambient light intensity is low and the output voltage of the photovoltaic module 110 may not be able to maintain power supply for the protected electronic equipment. The first control unit 171 controls the first switch S1, the second switch S2, the third switch S3 and the fourth switch S4 to turn off, and controls the fifth switch S5 and the sixth switch S6 to turn on. The energy storage unit 173 charges the protected electronic equipment through the output module 160. The photovoltaic module 110 will not output voltage to the output module 160 to avoid reverse charging.

[0148] Optionally, such as Figure 5 or Figure 8 As shown, the power management module also includes a second control unit 177, which is connected to the control terminals of the photovoltaic module 110 and the voltage conversion unit 172 respectively. The second control unit 177 is used to control the output parameters of the voltage conversion unit 172 according to the output electrical parameters of the photovoltaic module 110, so that the photovoltaic module 110 works at the maximum power output point.

[0149] The second control unit 177 includes an MPPT (Maximum Power Point Tracking) controller. The output electrical parameters of the photovoltaic module 110 may include at least one of output voltage and current. The second control unit 177 can be connected to the photovoltaic module 110 via voltage sampling circuits and current sampling circuits to obtain the output electrical parameters of the photovoltaic module 110. The output parameters of the voltage conversion unit 172 may include the output power, output voltage, or output current of the voltage conversion unit 172. The voltage conversion unit 172 may include at least one power transistor. The control terminal of the voltage conversion unit 172 is the gate of the power transistor. The second control unit 177 can output a control signal to the control terminal of the voltage conversion unit 172, that is, output a control signal to the gate of the power transistor, to control the conduction timing of the power transistor, thereby controlling the output parameters of the voltage conversion unit 172.

[0150] Specifically, the output power of a photovoltaic module is correlated with its operating voltage, and there exists a unique maximum power point voltage that ensures the output power reaches the peak power that the photovoltaic module can output. By setting a second control unit 177, the second control unit 177 can acquire the output electrical parameters of the photovoltaic module 110, such as the output voltage and current. Based on the output voltage and current, the second control unit 177 can determine the output power of the photovoltaic module 110. When the second control unit 177 determines that the output power of the photovoltaic module 110 is less than its maximum output power, the second control unit 177 adjusts the control signal output to the voltage conversion unit 172, controlling the output parameters of the voltage conversion unit 172, thereby adjusting the equivalent impedance of the voltage conversion unit 172, i.e., adjusting the load of the photovoltaic module 110, so that the photovoltaic module 110 operates at its maximum power output point, achieving maximum power point tracking.

[0151] Optionally, such as Figure 5 or Figure 8 As shown, the power management module also includes a filter unit 178;

[0152] The filter unit 178 is connected between the photovoltaic module 110 and the voltage conversion unit 172, and the second control unit 177 is connected to the filter unit 178. The second control unit 177 can be connected through a voltage sampling circuit and a current sampling circuit, that is, the second control unit 177 can obtain the output electrical parameters of the filter unit 178 through the voltage sampling circuit and current sampling circuit, and use the output electrical parameters of the filter unit 178 as the output electrical parameters of the photovoltaic module 110.

[0153] Specifically, the filter unit 178 may include a capacitor, an RC filter circuit, or an LC filter circuit, etc., and is not limited thereto. By setting the filter unit 178, voltage ripple or current ripple can be suppressed, interference signals can be filtered out, and the power transistor in the voltage conversion unit 172 can be protected.

[0154] Based on the above technical solutions, optionally, the photovoltaic modules in the photovoltaic module 110 are crystalline silicon photovoltaic modules, copper indium gallium selenide photovoltaic modules, cadmium telluride photovoltaic modules, or perovskite photovoltaic modules.

[0155] Among these, crystalline silicon photovoltaic modules can include monocrystalline silicon photovoltaic modules or polycrystalline silicon photovoltaic modules, and crystalline silicon photovoltaic modules have a lower cost. Cadmium telluride photovoltaic modules and copper indium gallium selenide photovoltaic modules have even lower costs and stronger power generation capabilities under low light conditions. Perovskite photovoltaic modules have high efficiency and strong power generation capabilities under low light conditions, which can better charge protected electronic devices.

[0156] Optionally, the photovoltaic modules in photovoltaic module 110 are perovskite photovoltaic modules. This allows for high-efficiency charging of protected electronic devices even in low ambient light conditions. The photovoltaic modules in photovoltaic module 110 can be rigid or flexible photovoltaic modules; no limitation is made here.

[0157] Optionally, the photovoltaic module in photovoltaic module 110 is a flexible perovskite photovoltaic module. The substrate material of the flexible perovskite photovoltaic module can be a flexible substrate such as polyimide, while the substrate of the rigid perovskite photovoltaic module can be a rigid substrate such as glass. The rigid substrate has a larger thickness, while the flexible substrate has a smaller thickness, enabling a thinner and lighter design for electronic device protective cases. Furthermore, this allows the electronic device protective case to be flexible, easily meeting user needs.

[0158] Optionally, the materials of the first housing 120 and the second housing 130 may include leather, fabric, synthetic materials, or flexible plastics, etc. The circuit connection wiring of the electronic device protective case can be located inside the first housing 120 and the second housing 130 to avoid exposed wiring. In some embodiments, the photovoltaic module 110 may include an encapsulation film layer covering each photovoltaic module (first photovoltaic module 111, second photovoltaic module 112, third photovoltaic module 113, fourth photovoltaic module 114, fifth photovoltaic module 115, and sixth photovoltaic module 116) to protect the photovoltaic modules. In other embodiments, the electronic device protective case may also include an encapsulation film layer covering each photovoltaic module, the first housing 120, and the second housing 130 to achieve overall encapsulation; this is not limited here.

[0159] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A protective case for electronic devices, characterized in that, include: At least two photovoltaic modules, a first housing, a second housing, and a protective casing; The first body has opposing first and second surfaces, and the second body has opposing third and fourth surfaces; The first housing is movably connected to the second housing, at least a portion of the protective shell is fixed to the third surface, and the protected electronic device is detachably fixed in the protective shell; The photovoltaic module is disposed on at least two of the first surface, the second surface and the fourth surface, and the photovoltaic module is used to charge the protected electronic device.

2. The electronic device protective case according to claim 1, characterized in that, The at least two photovoltaic modules include a first photovoltaic module, a second photovoltaic module, and a third photovoltaic module; The first photovoltaic module is disposed on the first surface, the second photovoltaic module is disposed on the second surface, and the third photovoltaic module is disposed on the fourth surface; The first photovoltaic module, the second photovoltaic module, and the third photovoltaic module are connected in parallel; Preferably, the photovoltaic module has a first power output terminal and a second power output terminal, and the photovoltaic module is used to provide electrical energy to the protected electronic equipment through the first power output terminal and the second power output terminal; Preferably, the first photovoltaic module includes a first photovoltaic component, the first end of the first photovoltaic component is the first power output terminal, and the second end of the first photovoltaic component is the second power output terminal.

3. The electronic device protective case according to claim 2, characterized in that, The electronic device protective case also includes a connecting structure, which connects the first case body and the second case body; When the first body and the second body are in a folded state, the first surface, the second surface, the third surface and the fourth surface are stacked in sequence; The second photovoltaic module includes a second photovoltaic module and a third photovoltaic module, wherein the second photovoltaic module and the third photovoltaic module extend along a first direction and are arranged along a second direction; wherein the second direction intersects the first direction; The first end of the second photovoltaic module is the first power output terminal, the second end of the second photovoltaic module is connected to the first end of the third photovoltaic module, and the second end of the third photovoltaic module is the second power output terminal; Preferably, at least one groove is provided on the second surface, and along the second direction, all the grooves are located between the second photovoltaic module and the third photovoltaic module; Preferably, two grooves are provided on the second surface, the two grooves including a first groove and a second groove; the second photovoltaic module, the first groove, the second groove and the third photovoltaic module are arranged sequentially along the second direction; The depths of the first groove and the second groove are both greater than or equal to one-third of the thickness of the first sleeve and less than or equal to two-thirds of the thickness of the first sleeve.

4. The electronic device protective case according to claim 2, characterized in that, The electronic device protective case also includes a connecting structure, which connects the first case body and the second case body; When the first body and the second body are in a folded state, the first surface, the second surface, the third surface and the fourth surface are stacked in sequence; The second photovoltaic module includes a second photovoltaic module, a third photovoltaic module, and a fourth photovoltaic module, wherein the second photovoltaic module, the third photovoltaic module, and the fourth photovoltaic module extend along a first direction and are arranged along a second direction; wherein the first direction intersects the second direction; The first end of the second photovoltaic module is the first power output terminal, and the third photovoltaic module is connected between the second end of the second photovoltaic module and the first end of the fourth photovoltaic module, wherein the second end of the fourth photovoltaic module is the second power output terminal; Preferably, a first groove and a second groove are provided on the second surface, and the second photovoltaic module, the first groove, the third photovoltaic module, the second groove and the fourth photovoltaic module are arranged sequentially along the second direction; Preferably, the depths of the first groove and the second groove are both greater than or equal to one-third of the thickness of the first sleeve and less than or equal to two-thirds of the thickness of the first sleeve.

5. The electronic device protective case according to claim 2, characterized in that, The second body includes a first region, a second region, and a bent region. The first region and the second region extend along a first direction, and the first region, the bent region, and the second region are arranged sequentially along a second direction; wherein the first direction intersects the second direction. The third photovoltaic module includes a fifth photovoltaic module and a sixth photovoltaic module. The first end of the fifth photovoltaic module is the first power output end, the second end of the fifth photovoltaic module is connected to the first end of the sixth photovoltaic module, and the second end of the sixth photovoltaic module is the second power output end. The fifth photovoltaic module is located in the first region, and the sixth photovoltaic module is located in the second region; Preferably, a portion of the protective shell is fixed to the second region of the third surface.

6. The electronic device protective case according to claim 1, characterized in that, The electronic device protective case also includes an output module; The photovoltaic module has a first power output terminal and a second power output terminal, and the photovoltaic module is used to provide electrical energy to the protected electronic equipment through the first power output terminal and the second power output terminal. The first end of the output module is connected to the first power output terminal, and the second end of the output module is connected to the second power output terminal. The output module is used to charge the protected electronic device according to the output voltage of at least one of the photovoltaic modules. Preferably, the output module includes a wired charging interface and / or a wireless charging coil; The first end of the wired charging interface is the first end of the output module, the second end of the wired charging interface is the second end of the output module, and the third end of the wired charging interface is pluggably connected to the protected electronic device. The first end of the wireless charging coil is the first end of the output module, and the second end of the wireless charging coil is the second end of the output module.

7. The electronic device protective case according to claim 6, characterized in that, The electronic device protective case also includes a power management module; The power management module is connected between the photovoltaic module and the output module. The power management module is used to transmit the output voltage of the photovoltaic module to the output module when the ambient light intensity is greater than a first threshold. Preferably, the power management module is located on the side of the third surface closer to the fourth surface, and the protective shell covers the power management module; Preferably, the wireless charging coil is located on the side of the third surface near the fourth surface, and the protective shell covers the wireless charging coil; The wired charging interface is connected to the power management module via a charging cable, at least a portion of which is located on the side of the third surface near the fourth surface, and the protective shell covers at least a portion of the charging cable.

8. The electronic device protective case according to claim 7, characterized in that, The power management module includes a first control unit, a voltage conversion unit, an energy storage unit, a first switching unit, a second switching unit, and a third switching unit; The input terminal of the voltage conversion unit is connected to the photovoltaic module, and the voltage conversion unit is used to convert the output voltage of the photovoltaic module; The first terminal of the first switching unit is connected to the output terminal of the voltage conversion unit, and the second terminal of the first switching unit is connected to the first terminal of the output module and the second terminal of the output module, respectively; the first switching unit is used to transmit the converted voltage output by the voltage conversion unit to the output module when it is turned on. The first terminal of the second switching unit is connected to the output terminal of the voltage conversion unit, and the second terminal of the second switching unit is connected to the first terminal of the energy storage unit and the second terminal of the energy storage unit respectively; the second switching unit is used to transmit the converted voltage output by the voltage conversion unit to the energy storage unit when it is turned on, so as to charge the energy storage unit; The first end of the third switching unit is connected to the first end of the energy storage unit, the second end of the third switching unit is connected to the second end of the energy storage unit, the third end of the third switching unit is connected to the first end of the output module, and the fourth end of the third switching unit is connected to the second end of the output module; the energy storage unit is used to charge the protected electronic device through the output module when the third switching unit is turned on. The first control unit is connected to the control terminals of the first switch unit, the second switch unit, and the third switch unit, respectively. The first control unit is used to control the first switch unit to be turned on and the second and third switch units to be turned off when the ambient light intensity is greater than a second threshold; to control the first switch unit to be turned off and the second and third switch units to be turned on when the ambient light intensity is greater than the first threshold and less than or equal to the second threshold; and to control the third switch unit to be turned on and the first and second switch units to be turned off when the ambient light intensity is less than or equal to the first threshold. Preferably, the first switching unit includes a first switch and a second switch, the first switch being connected between the first output terminal of the voltage conversion unit and the first terminal of the output module, and the second switch being connected between the second output terminal of the voltage conversion unit and the second terminal of the output module; The second switching unit includes a third switch and a fourth switch. The third switch is connected between the first output terminal of the voltage conversion unit and the first terminal of the energy storage unit, and the fourth switch is connected between the second output terminal of the voltage conversion unit and the second terminal of the energy storage unit. The third switching unit includes a fifth switch and a sixth switch. The fifth switch is connected between the first end of the energy storage unit and the first end of the output module, and the sixth switch is connected between the second end of the energy storage unit and the second end of the output module.

9. The electronic device protective case according to claim 8, characterized in that, The power management module further includes a second control unit, which is connected to the control terminals of the photovoltaic module and the voltage conversion unit respectively. The second control unit is used to control the output parameters of the voltage conversion unit according to the output electrical parameters of the photovoltaic module, so that the photovoltaic module operates at the maximum power output point. Preferably, the power management module further includes a filtering unit; The filtering unit is connected between the photovoltaic module and the voltage conversion unit, and the second control unit is connected to the filtering unit.

10. The electronic device protective case according to any one of claims 1-9, characterized in that, The photovoltaic modules in the photovoltaic module are crystalline silicon photovoltaic modules, copper indium gallium selenide photovoltaic modules, cadmium telluride photovoltaic modules, or perovskite photovoltaic modules. Preferably, the photovoltaic module in the photovoltaic module is a perovskite photovoltaic module; Preferably, the photovoltaic module in the photovoltaic module is a flexible perovskite photovoltaic module.

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