Shell structure, electronic equipment and electronic equipment accessory

Abstract

The utility model relates to a shell structure, electronic equipment and an electronic equipment accessory. The housing structure comprises: a body; the charging coil is arranged in the body; and the first electric connection part is electrically connected with the charging coil, and at least part of the first electric connection part is exposed out of the surface of the body so as to be electrically connected with the wireless charging circuit. By arranging the charging coil in the body, the electronic equipment does not need to reserve a space for arranging the charging coil, so that the thickness of the electronic equipment is reduced. Moreover, the space reserved by the electronic equipment for setting the charging coil can be used for increasing the thickness of the battery, so that the capacity of the battery is increased, and the endurance time of the electronic equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wireless charging, and in particular to a shell structure, an electronic device and an electronic device accessory. BACKGROUND

[0002] With the development of charging technology, a charging coil is arranged in an electronic device to receive electric energy through the charging coil to realize a wireless charging function. However, due to the large volume of the charging coil, a certain space is occupied in the electronic device, which leads to the problem of large thickness of the electronic device. CONTENT

[0003] To overcome the problems in the related art, the present disclosure provides a shell structure, an electronic device and an electronic device accessory.

[0004] According to a first aspect of the present disclosure, a shell structure is provided, comprising:

[0005] a body;

[0006] a charging coil arranged in the body;

[0007] a first electrical connection part electrically connected with the charging coil, at least part of the first electrical connection part is exposed through a surface of the body to be electrically connected with a wireless charging circuit.

[0008] In some embodiments of the present disclosure, a receiving cavity is arranged in the body, and the charging coil is located in the receiving cavity.

[0009] In some embodiments of the present disclosure, the first electrical connection part comprises a plurality of first contacts.

[0010] In some embodiments of the present disclosure, the shell structure further comprises:

[0011] a magnetic material layer arranged in the body, the magnetic material layer is used to enhance the radiation field of the charging coil.

[0012] In some embodiments of the present disclosure, the magnetic material layer is arranged opposite to the charging coil, and a projection of the magnetic material layer on a plane where the charging coil is located covers the charging coil.

[0013] In some embodiments of the present disclosure, the magnetic material layer is located between the charging coil and the wireless charging circuit.

[0014] In some embodiments of the present disclosure, the magnetic material layer is arranged on a surface of the body; or,

[0015] the magnetic material layer is arranged in a receiving cavity in the body.

[0016] In some embodiments of the present disclosure, the magnetic material layer comprises a nanocrystalline material layer.

[0017] According to a second aspect of the present disclosure, an electronic device is provided, which comprises a wireless charging circuit and a housing structure as described above, the wireless charging circuit being electrically connected with the first electrical connection part of the housing structure.

[0018] In some embodiments of the present disclosure, the housing structure is a back cover of the electronic device.

[0019] In some embodiments of the present disclosure, the wireless charging circuit is arranged on a circuit board, the circuit board being provided with a second electrical connection part electrically connected with an input terminal of the wireless charging circuit; the charging coil is electrically connected with the input terminal of the wireless charging circuit through the first electrical connection part and the second electrical connection part.

[0020] According to a third aspect of the present disclosure, an electronic device accessory is provided, which comprises a housing structure as described above, the electronic device accessory being detachably connected with an electronic device.

[0021] In some embodiments of the present disclosure, the electronic device accessory is a protective case of the electronic device.

[0022] In some embodiments of the present disclosure, the electronic device comprises a back cover and a wireless charging circuit, the back cover comprising a third electrical connection part, the charging coil being electrically connected with an input terminal of the wireless charging circuit through the first electrical connection part and the third electrical connection part.

[0023] In some embodiments of the present disclosure, the electronic device further comprises:

[0024] a first protection circuit, the first protection circuit being electrically connected with the input terminal of the wireless charging circuit, the first protection circuit being configured to perform overvoltage protection on the wireless charging circuit.

[0025] In some embodiments of the present disclosure, the input terminal of the wireless charging circuit comprises a first input terminal and a second input terminal; the first protection circuit comprises:

[0026] a first voltage stabilizing tube, a first anode of the first voltage stabilizing tube being electrically connected with the first input terminal of the wireless charging circuit, a second anode of the first voltage stabilizing tube being electrically connected with a ground terminal;

[0027] a second voltage stabilizing tube, a first anode of the second voltage stabilizing tube being electrically connected with the second input terminal of the wireless charging circuit, a second anode of the second voltage stabilizing tube being configured to be electrically connected with the ground terminal.

[0028] The technical scheme provided by the embodiment of the present disclosure can include the following beneficial effects:

[0029] The shell structure includes a body, a charging coil and a first electrical connection part. The first electrical connection part is electrically connected with the charging coil arranged in the body, and at least part of the first electrical connection part is exposed through the surface of the body to be electrically connected with the wireless charging circuit. By arranging the charging coil in the body, the electronic device does not need to reserve space to arrange the charging coil, thereby reducing the thickness of the electronic device. Moreover, the space reserved for arranging the charging coil of the electronic device can be used to increase the thickness of the battery to increase the capacity of the battery, thereby improving the endurance time of the electronic device.

[0030] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated into the specification and constitute part of it, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0032] Figure 1 is a longitudinal cross-sectional structure schematic diagram of a shell structure provided by an exemplary embodiment of the present disclosure;

[0033] Figure 2 is a longitudinal cross-sectional structure schematic diagram of a shell structure provided by another exemplary embodiment of the present disclosure;

[0034] Figure 3 is a transverse cross-sectional structure schematic diagram of a shell structure provided by an exemplary embodiment of the present disclosure;

[0035] Figure 4 is a longitudinal cross-sectional structure schematic diagram of a shell structure provided by another exemplary embodiment of the present disclosure;

[0036] Figure 5 is a longitudinal cross-sectional structure schematic diagram of a shell structure provided by another exemplary embodiment of the present disclosure;

[0037] Figure 6 is a longitudinal cross-sectional structure schematic diagram of a shell structure provided by another exemplary embodiment of the present disclosure;

[0038] Figure 7 is a longitudinal cross-sectional structure schematic diagram of a shell structure provided by another exemplary embodiment of the present disclosure;

[0039] Figure 8 is a block diagram of an electronic device provided by an exemplary embodiment of the present disclosure;

[0040] Figure 9is a connection diagram of an electronic device and an electronic device accessory provided by an example embodiment of the present disclosure;

[0041] Figure 10 is a structure diagram of a wireless charging circuit and a peripheral circuit thereof provided by another example embodiment of the present disclosure;

[0042] Figure 11 is a connection diagram of an electronic device and an electronic device accessory provided by another example embodiment of the present disclosure;

[0043] Figure 12 is a structure diagram of a wireless charging circuit and a peripheral circuit thereof provided by another example embodiment of the present disclosure;

[0044] Figure 13 is a system block diagram of an electronic device provided by an example embodiment of the present disclosure.

[0045] in the figure:

[0046] 10 - body; 20 - charging coil; 30 - first electrical connection part; 31 - first contact; 40 - magnetic material layer; 41 - nanocrystalline material layer; 50 - wireless charging circuit; 60 - circuit board; 61 - second electrical connection part; 70 - back shell; 71 - third electrical connection part; 80 - control circuit; 90 - power management chip; 400 - electronic device; 402 - processing component; 404 - memory; 406 - power supply component; 408 - multimedia component; 410 - audio component; 412 - input and output interface; 414 - sensor component; 416 - communication component; 420 - processor; ZD1 - first voltage stabilizing tube; ZD2 - second voltage stabilizing tube; C1 - first capacitor; C2 - second capacitor; C3 - third capacitor; C4 - fourth capacitor; C5 - fifth capacitor; C6 - sixth capacitor; C7 - seventh capacitor; C8 - eighth capacitor; C9 - ninth capacitor; C10 - tenth capacitor; R1 - first resistor; R2 - second resistor; R3 - third resistor; R4 - fourth resistor; R5 - fifth resistor; R6 - sixth resistor; Q - transistor; AC1 - first input end; AC2 - second input end; CMA - first debugging end; CM1 - second debugging end; CMB - third debugging end; CM2 - fourth debugging end; BST1 - first bootstrap end; BST2 - second bootstrap end; PCLAMP - first clamping end; ECLAMP-DRV - second clamping end; VRECT - first voltage output end; VOUT - second voltage output end; LOD1P8 - third voltage output end; GND - ground end; PGND - common end; GP - first input and output end; OD - second input and output end; EN - enable end; ISP - first current detection end; ISN - second current detection end. DETAILED DESCRIPTION

[0047] The exemplary embodiments will be described in detail below with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent the same or similar elements. The following exemplary embodiments described are not meant to represent all implementations consistent with the present application. Rather, they are simply examples consistent with some aspects of the present application as detailed in the appended claims. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0048] The wireless charging function of the electronic device is realized by the principle of electromagnetic induction. In the wireless charging system, a transmitting coil is arranged in the charging device as a transmitting end, and a charging coil is arranged in the electronic device as a receiving end. The transmitting coil generates alternating electromagnetic energy after being powered on, and the charging coil generates alternating current after sensing the electromagnetic energy. The wireless charging circuit connected with the charging coil converts the alternating current to charge the battery, thereby realizing the wireless charging function of the electronic device.

[0049] In the related art, an electronic device is provided, which includes a charging coil, a protective film, and a nanocrystalline material layer. The charging coil, the protective film, and the nanocrystalline material layer are sequentially attached between the back shell and the battery of the electronic device to realize the wireless charging function of the electronic device. However, since the charging coil, the protective film, and the nanocrystalline material layer all have a certain volume, a larger space needs to be reserved in the electronic device, which not only increases the thickness of the electronic device but also limits the capacity of the battery.

[0050] Based on this, the present disclosure provides a shell structure, by arranging the charging coil in the body of the shell structure, no space needs to be reserved in the electronic device to arrange the charging coil, thereby reducing the thickness of the electronic device. Moreover, the space reserved for the charging coil in the electronic device can be used to increase the thickness of the battery to increase the capacity of the battery, thereby improving the endurance time of the electronic device.

[0051] An example embodiment of the present disclosure provides a shell structure, as shown in Figure 1 The shell structure includes a body 10, a charging coil 20, and a first electrical connection part 30. The charging coil 20 is arranged in the body 10. The first electrical connection part 30 is electrically connected with the charging coil 20, and at least part of the first electrical connection part 30 is exposed through the surface of the body 10 to be electrically connected with the wireless charging circuit.

[0052] In the embodiment, the shell structure includes a body, a charging coil and a first electrical connection part. The first electrical connection part is electrically connected with the charging coil arranged in the body, and at least part of the first electrical connection part is exposed through the surface of the body to be electrically connected with the wireless charging circuit. By arranging the charging coil in the body, the electronic device does not need to reserve space to arrange the charging coil, thereby reducing the thickness of the electronic device. Moreover, the space reserved for arranging the charging coil in the electronic device can be used to increase the thickness of the battery to increase the capacity of the battery, thereby improving the endurance time of the electronic device.

[0053] In an embodiment, the body 10 is provided with a receiving cavity, and the charging coil 20 is arranged in the receiving cavity.

[0054] In the embodiment, the charging coil needs to be replaced when it fails. By arranging the charging coil in the receiving cavity in the body, the charging coil can be easily taken out and placed to avoid replacing the shell structure, thereby improving the reusability of the shell structure.

[0055] In an embodiment, the charging coil 20 is embedded in the interior of the body 10.

[0056] In the embodiment, by embedding the charging coil in the interior of the body, the charging coil can be integrally injection molded with the body, thereby reducing the manufacturing difficulty of the shell structure. Moreover, by embedding the charging coil in the interior of the body, the charging coil can be prevented from being affected by dust and liquid to fail, thereby improving the reliability of the charging coil.

[0057] In an embodiment, as shown in Figure 2 , the first electrical connection part 30 includes a plurality of first contacts 31.

[0058] In the embodiment, by electrically connecting the plurality of first contacts with the wireless charging circuit, the electronic device does not need to arrange a complex conductive circuit, thereby reducing the complexity of the structure of the electronic device.

[0059] Exemplarily, the first electrical connection part 30 can include two first contacts 31. The first contact 31 can be electrically connected with the charging coil 20 through a conductive structure.

[0060] Exemplarily, as shown in Figure 3 , in the case that the charging coil 20 is formed by etching a flexible circuit board, the charging coil 20 is electrically connected with the two first contacts 31 through two contacts of the flexible circuit board, respectively.

[0061] In an embodiment, as shown in Figure 4 , the shell structure further includes a magnetic material layer 40. The magnetic material layer 40 is arranged in the body 10, and the magnetic material layer 40 is used to enhance the radiation field of the charging coil 20.

[0062] In the embodiment, the magnetic material layer can enhance the radiation field of the charging coil, and the efficiency of wireless charging is improved by arranging the magnetic material layer.

[0063] In one embodiment, the magnetic material layer 40 is arranged opposite to the charging coil 20, and the projection of the magnetic material layer 40 on the plane where the charging coil 20 is located covers the charging coil 20.

[0064] In the embodiment, the larger the area where the magnetic material layer overlaps the charging coil, the better the effect of the magnetic material layer on enhancing the radiation field of the charging coil. By arranging the magnetic material layer opposite to the charging coil, the strength of the radiation field can be maximized, thereby improving the efficiency of wireless charging.

[0065] Exemplarily, the projection of the magnetic material layer 40 on the plane where the charging coil 20 is located can cover the charging coil 20, or can partially overlap the charging coil 20.

[0066] In one embodiment, the magnetic material layer 40 is located between the charging coil 20 and the wireless charging circuit.

[0067] In the embodiment, the wireless charging circuit is arranged in the electronic device, and the closer the distance between the charging coil and the transmitting coil of the charging device, the higher the efficiency of transmitting electromagnetic signals between the transmitting coil and the charging coil. By arranging the magnetic material layer between the charging coil and the wireless charging circuit, the distance between the charging coil and the transmitting coil is shortened, thereby improving the efficiency of wireless charging. At the same time, since the magnetic material layer is located between the charging coil and the wireless charging circuit, it is avoided to be exposed when the magnetic material layer is arranged on the surface of the body, thereby improving the aesthetics of the shell structure.

[0068] In one embodiment, the magnetic material layer 40 is arranged on the surface of the body 10.

[0069] In the embodiment, by arranging the magnetic material layer on the surface of the body, the magnetic material layer does not need to be formed at the same time when the body is injection molded, thereby reducing the complexity of arranging the magnetic material layer. Moreover, since the magnetic material layer can be replaced without disassembling the body, the complexity of replacing the magnetic material layer is reduced.

[0070] Exemplarily, the shell structure can further include a protective film, and the magnetic material layer 40 and the protective film are sequentially arranged on the surface of the body 10 to protect the magnetic material layer 40 by the protective film.

[0071] In one embodiment, as shown in Figure 5 the magnetic material layer 40 is arranged in the accommodating cavity in the body 10.

[0072] In the embodiment, the protective film is used to wrap and protect the magnetic material layer, preventing the magnetic material layer from entering the inside of the electronic device due to breakage. By arranging the magnetic material layer in the accommodating cavity in the body, the body does not need to arrange the protective film to wrap the magnetic material layer, thereby reducing the cost of the shell structure. At the same time, by arranging the magnetic material layer in the body, the electronic device does not need to reserve space to arrange the magnetic material layer, thereby reducing the thickness of the electronic device.

[0073] In one embodiment, the magnetic material layer 40 is embedded in the body 10.

[0074] In the embodiment, the protective film is used to wrap and protect the magnetic material layer, preventing the magnetic material layer from entering the inside of the electronic device due to breakage, causing the electronic device to malfunction. By embedding the magnetic material layer in the body, the body does not need to arrange the protective film to wrap the magnetic material layer, thereby reducing the cost of the shell structure. Moreover, since the body does not need to arrange the protective film, the thickness of the body inside for embedding the protective film is reduced, thereby improving the hardness of the shell structure.

[0075] In one embodiment, the magnetic material layer 40 includes a nanocrystalline material layer.

[0076] In the embodiment, since the nanocrystalline material can improve the coupling coefficient of the charging coil to enhance the electromagnetic conversion efficiency, by using the nanocrystalline material layer as the magnetic material layer, the efficiency of wireless charging is improved.

[0077] An example embodiment of the present disclosure provides a shell structure, as shown in Figure 6 The shell structure includes a body 10, a charging coil 20, two first contacts 31, and a nanocrystalline material layer 41. The charging coil 20 is embedded in the inside of the body 10, the nanocrystalline material layer 41 is arranged on the surface of the body 10, and the nanocrystalline material layer 41 is located between the charging coil 20 and the wireless charging circuit. The nanocrystalline material layer 41 is arranged opposite to the charging coil 20, and the projection of the nanocrystalline material layer 41 on the plane where the charging coil 20 is located covers the charging coil 20. The first surface of each of the two first contacts 31 is electrically connected to the charging coil 20, and the second surface of each of the two first contacts 31 is exposed through the surface of the body 10 to be electrically connected to the wireless charging circuit.

[0078] An example embodiment of the present disclosure provides a shell structure, as shown in Figure 7As shown, the shell structure includes the body 10, the charging coil 20, two first contacts 31 and a nanocrystalline material layer 41. The charging coil 20 and the nanocrystalline material layer 41 are both embedded in the interior of the body 10, and the nanocrystalline material layer 41 is located between the charging coil 20 and the wireless charging circuit. The nanocrystalline material layer 41 is arranged opposite to the charging coil 20, and the projection of the nanocrystalline material layer 41 on the plane where the charging coil 20 is located covers the charging coil 20. The first surfaces of the two first contacts 31 are both electrically connected to the charging coil 20, and the second surfaces of the two first contacts 31 are both exposed through the surface of the body 10 to be electrically connected to the wireless charging circuit.

[0079] An example embodiment of the present disclosure provides an electronic device, which includes a wireless charging circuit and a shell structure as described above, and the wireless charging circuit is electrically connected to the first electrical connection part 30 of the shell structure.

[0080] In this embodiment, by making the electronic device include the shell structure and the wireless charging circuit, the charging coil does not need to be arranged in the electronic device, thereby reducing the thickness of the electronic device.

[0081] For example, the electronic device is a mobile phone, a notebook computer, a tablet computer, a wearable device, or the like.

[0082] In an embodiment, the shell structure is the back cover of the electronic device.

[0083] In this embodiment, by reusing the back cover of the electronic device, no additional shell structure needs to be added to the electronic device, thereby reducing the thickness and the structural complexity of the electronic device.

[0084] In an embodiment, as shown, Figure 8 The wireless charging circuit 50 is arranged on the circuit board 60, and the second electrical connection part 61 electrically connected to the input end of the wireless charging circuit 50 is arranged on the circuit board 60. The charging coil 20 is electrically connected to the input end of the wireless charging circuit 50 through the first electrical connection part 30 and the second electrical connection part 61.

[0085] In this embodiment, by using the second electrical connection part as the structure for electrically connecting the charging coil and the wireless charging circuit, no wire needs to be arranged in the electronic device, and the current can be transmitted in the shortest path, thereby reducing the loss in the wireless charging process and improving the efficiency of the wireless charging. Moreover, since the charging coil is electrically connected to the wireless charging circuit through the first electrical connection part and the second electrical connection part, the fluctuation of the charging current caused by poor contact or long lines between the charging coil and the wireless charging circuit is avoided, thereby improving the reliability of the wireless charging.

[0086] Exemplarily, the second electric connecting part 61 can include two spring structures. In the case that the first electric connecting part 30 includes two first contacts 31, the two spring structures are electrically connected with the two first contacts 31 respectively.

[0087] An example embodiment of the present disclosure provides an electronic device accessory, which includes the shell structure as described above, and the electronic device accessory is detachably connected with the electronic device.

[0088] In the embodiment, by setting the charging coil in the electronic device accessory, the charging coil and the magnetic material layer do not need to be set in the electronic device, thereby reducing the thickness and weight of the electronic device.

[0089] In an embodiment, the electronic device accessory is a protective shell of the electronic device.

[0090] In the embodiment, by multiplexing the protective shell of the electronic device, the protective shell can not only protect the electronic device, but also reduce the thickness of the electronic device, thereby reducing the thickness and structural complexity of the electronic device.

[0091] Exemplarily, the electronic device accessory can be not only the protective shell, but also a magnetic attraction device.

[0092] In an embodiment, as shown in Figure 9 the electronic device includes a back shell 70 and a wireless charging circuit 50, the back shell 70 includes a third electric connecting part 71, and the charging coil 20 is electrically connected with the input end of the wireless charging circuit 50 through the first electric connecting part 30 and the third electric connecting part 71.

[0093] In the embodiment, since the charging coil is set in the electronic device accessory and the wireless charging circuit is set in the electronic device, in order to form a charging loop with the charging coil and the wireless charging circuit, the third connecting part is set on the back shell to electrically connect the charging coil and the wireless charging circuit, thereby reducing the structural complexity of the electronic device.

[0094] Exemplarily, the third electric connecting part 71 can include two second contacts. In the case that the first electric connecting part 30 includes two first contacts 31, the two second contacts are electrically connected with the two first contacts 31 respectively.

[0095] Exemplarily, the wireless charging circuit 50 is set on the circuit board 60, and the circuit board 60 is provided with two spring structures electrically connected with the input end of the wireless charging circuit 50. The charging coil 20 is electrically connected with the input end of the wireless charging circuit 50 through the two first contacts 31, the two second contacts and the two spring structures.

[0096] In an embodiment, the electronic device further comprises a first protection circuit. The first protection circuit is electrically connected to the input end of the wireless charging circuit 50, and the first protection circuit is configured to perform overvoltage protection on the wireless charging circuit 50.

[0097] In the embodiment, when the electronic device accessory is disassembled and assembled, static electricity is easily transmitted to the wireless charging circuit through the third electrical connection part, which causes the wireless charging circuit to malfunction. By arranging the first protection circuit, overvoltage protection can be performed on the wireless charging circuit, thereby improving the reliability of the electronic device.

[0098] In an embodiment, as shown in Figure 10 the input end of the wireless charging circuit 50 comprises a first input end and a second input end. The first protection circuit comprises a first zener diode ZD1 and a second zener diode ZD2. The first anode of the first zener diode ZD1 is electrically connected to the first input end of the wireless charging circuit 50, and the second anode of the first zener diode ZD1 is electrically connected to the ground terminal GND. The first anode of the second zener diode ZD2 is electrically connected to the second input end of the wireless charging circuit 50, and the second anode of the second zener diode ZD2 is electrically connected to the ground terminal GND.

[0099] In the embodiment, the zener diode has a simple structure and can prevent voltage from breaking through the wireless charging circuit when the voltage is high. By arranging a zener diode at the first input end and the second input end of the wireless charging circuit to perform overvoltage protection on the wireless charging circuit, the complexity of the structure of the electronic device is reduced.

[0100] Exemplarily, the first zener diode ZD1 and the second zener diode ZD2 are both bidirectional zener diodes.

[0101] It can be understood that, in addition to being bidirectional zener diodes, the first zener diode ZD1 and the second zener diode ZD2 can also be unidirectional zener diodes, or one unidirectional zener diode and one bidirectional zener diode, which are not limited herein.

[0102] An exemplary embodiment of the present disclosure provides an electronic device accessory and an electronic device, as shown in Figure 11As shown, the electronic device accessory includes a housing structure, which includes a charging coil 20 disposed on the main body 10 and two first electrical connection portions 30. The electronic device includes a circuit board 60 and a rear shell 70. The circuit board 60 is provided with a wireless charging circuit 50, a first Zener diode ZD1, a second Zener diode ZD2, and two second electrical connection portions 61. The rear shell 70 is provided with two third electrical connection portions 71. The charging coil 20 is electrically connected to the first input terminal and the second input terminal of the wireless charging circuit 50 through the two first electrical connection portions 30, the two third electrical connection portions 71, and the two second electrical connection portions 61, respectively. The first anode of the first Zener diode ZD1 is connected to the first input terminal of the wireless charging circuit 50, and the second anode of the first Zener diode ZD1 is electrically connected to the ground terminal GND. The first anode of the second Zener diode ZD2 is connected to the second input terminal of the wireless charging circuit 50, and the second anode of the second Zener diode ZD2 is electrically connected to the ground terminal GND.

[0103] For example, such as Figure 12 As shown, the electronic device also includes a first filter circuit. The first filter circuit includes a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, and a seventh capacitor C7. One of the two second electrical connection portions 61 is electrically connected to the first anode of the first Zener diode ZD1, the first terminal of the first capacitor C1, the first terminal of the second capacitor C2, the first terminal of the third capacitor C3, the first terminal of the fourth capacitor C4, and the first input terminal AC1 of the wireless charging circuit 50. The other second electrical connection portion 61 is electrically connected to the first anode of the second Zener diode ZD2, the second terminal of the first capacitor C1, the first terminal of the fifth capacitor C5, the first terminal of the sixth capacitor C6, the first terminal of the seventh capacitor C7, and the second input terminal AC2 of the wireless charging circuit. The second anode of the first Zener diode ZD1 is electrically connected to the ground terminal GND. The second anode of the second Zener diode ZD2 is electrically connected to the ground terminal GND. The second terminal of the second capacitor C2 is used to connect to the first debugging terminal CMA of the wireless charging circuit 50. The second terminal of the third capacitor C3 is electrically connected to the second debugging terminal CM1 of the wireless charging circuit 50. The second terminal of the fourth capacitor C4 is electrically connected to the first bootstrap terminal BST1 of the wireless charging circuit 50. The second terminal of the fifth capacitor C5 is electrically connected to the third debugging terminal CMB of the wireless charging circuit 50. The second terminal of the sixth capacitor C6 is electrically connected to the fourth debugging terminal CM2 of the wireless charging circuit 50. The second terminal of the seventh capacitor C7 is electrically connected to the second bootstrap terminal BST2 of the wireless charging circuit 50.

[0104] Exemplarily, the electronic device further comprises a second protection circuit and a second filter circuit. The second protection circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a transistor Q. A first end of the first resistor R1 is electrically connected with the first clamping end PCLAMP of the wireless charging circuit 50, a second end of the first resistor R1 is electrically connected with a first end of the second resistor R2, a second end of the second resistor R2 is electrically connected with a first end of the third resistor R3, a second end of the third resistor R3 is electrically connected with a first end of the fourth resistor R4, a second end of the fourth resistor R4 is electrically connected with the second clamping end ECLAMP-DRV of the wireless charging circuit 50. A first end of the transistor Q is electrically connected with the second end of the second resistor R2, a second end of the transistor Q is electrically connected with the first end of the third resistor R3 and the ground end GND, a third end of the transistor Q is electrically connected with the second end of the third resistor R3 and the first end of the fourth resistor R4. The second filter circuit comprises an eighth capacitor C8. A first end of the eighth capacitor C8 is electrically connected with the first voltage output end VRECT, the second end of the first resistor R1 and the first end of the second resistor R2, a second end of the eighth capacitor C8 is electrically connected with the ground end GND, the second end of the transistor Q and the first end of the third resistor R3. Wherein, the first voltage output end VRECT can be electrically connected with the load.

[0105] Exemplarily, the wireless charging circuit 50 further comprises a common end PGND, a first input / output end GP, a second input / output end OD, an enable end EN, a second voltage output end VOUT, a first current detection end ISP, a second current detection end ISN and a third voltage output end LOD1P8. Wherein, the common end PGND is electrically connected with the ground end GND. The first input / output end GP and the second input / output end OD are both used for being electrically connected with the control circuit 80. The enable end EN is electrically connected with the ground end GND through a fifth resistor R5. A first end of a sixth resistor R6 is electrically connected with a first end of a ninth capacitor C9, the second voltage output end VOUT and the first current detection end ISP, a second end of the sixth resistor R6 is electrically connected with the second current detection end ISN and the power management chip 90. A second end of the ninth capacitor C9 is electrically connected with the ground end GND, the third voltage output end LOD1P8 is electrically connected with the ground end GND through a tenth capacitor C10.

[0106] Exemplarily, the first protection circuit, the second protection circuit, the first filter circuit and the second filter circuit can be used as the peripheral circuit of the wireless charging circuit 50.

[0107] Reference Figure 13 As shown, the electronic device 400 can include one or more of the following components: a processing component 402, a memory 404, a power supply component 406, a multimedia component 408, an audio component 410, an input / output (I / O) interface 412, a sensor component 414, and a communication component 416.

[0108] The processing component 402 generally controls the overall operations of the electronic device 400, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 402 can include one or more processors 420 to execute instructions and to complete all or part of steps of the above-described methods. In addition, the processing component 402 can include one or more modules to facilitate interaction between the processing component 402 and other components. For example, the processing component 402 can include a multimedia module to facilitate the interaction between the multimedia component 408 and the processing component 402.

[0109] The memory 404 is configured to store various types of data to support operations of the electronic device 400. Examples of these data include instructions for any application or method operating on the electronic device 400, contact data, phonebook data, messages, pictures, videos, and so on. The memory 404 can be implemented by any type of volatile or non-volatile storage terminal or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage terminal, flash memory, magnetic disk or optical disk.

[0110] The power component 406 provides power to various components of the electronic device 400. The power component 406 can include a power management system, one or more power sources, and other components associated with generating, managing and distributing power for the electronic device 400.

[0111] The multimedia component 408 includes a screen to provide an output interface between the electronic device 400 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes the touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding action, but also detect duration and pressure related to the touching or sliding operation. In some embodiments, the multimedia component 408 includes a front camera module and / or a rear camera module. The front camera module and / or the rear camera module can receive external multimedia data when the electronic device 400 is in an operation mode, such as a photographing mode or a video mode. Each of the front camera module and the rear camera module can be a fixed optical lens system or have a focal length and optical zoom capability.

[0112] The audio component 410 is configured to output and / or input audio signals. For example, the audio component 410 includes a microphone (MIC) that is configured to receive an external audio signal when the electronic device 400 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 404 or transmitted via the communication component 416. In some embodiments, the audio component 410 also includes a speaker for outputting audio signals.

[0113] The I / O interface 412 provides an interface between the processing component 402 and peripheral interface modules, which can include a keypad, a click wheel, buttons, and so on. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0114] The sensor component 414 includes one or more sensors for providing status assessments of various aspects of the electronic device 400. For example, the sensor component 414 can detect an open / closed position of the electronic device 400, relative positioning of components, such as a display and a keypad of the electronic device 400, a change of position of the electronic device 400 or a component of the electronic device 400, presence or absence of user contact with the electronic device 400, orientation or acceleration / deceleration / g-force and temperature of the electronic device 400. The sensor component 414 can include an orientation sensor, an acceleration sensor, a proximity sensor, a gesture sensor, a gravity sensor, a biometric sensor, a temperature / humidity sensor, an illumination sensor, and / or an interaction sensor.

[0115] The communication component 416 is configured to facilitate wired or wireless communication between the electronic device 400 and external devices. The electronic device 400 can access a wireless network based on a corresponding communication standard, such as WiFi, 2G, 3G, 4G, 5G, or a combination thereof. In an example embodiment, the communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an example embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) techniques, infrared data association (IrDA) techniques, ultra-wideband (UWB) techniques, Bluetooth (BT) techniques, and other techniques.

[0116] In exemplary embodiments, the electronic device 400 can be implemented with one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing terminals (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic elements.

[0117] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0118] In addition, the terms "first", "second", etc. are used only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0119] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure that come within known or customary practice in the art to which the application pertains. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the application are indicated by the following claims.

[0120] It should be understood that the present disclosure is not limited to the precise structures described and shown in the drawings, and that various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the claims appended hereto.

Claims

1. A shell structure, characterized in that, The shell structure includes: ontology; A charging coil is disposed within the body. A first electrical connection portion is electrically connected to the charging coil, and at least a portion of the first electrical connection portion is exposed through the surface of the body for electrical connection to the wireless charging circuit.

2. The shell structure according to claim 1, characterized in that, The body has a receiving cavity, and the charging coil is located in the receiving cavity.

3. The shell structure according to claim 1, characterized in that, The first electrical connection includes a plurality of first contacts.

4. The shell structure according to any one of claims 1 to 3, characterized in that, The shell structure also includes: A magnetic material layer is disposed on the body, and the magnetic material layer is used to enhance the radiation field of the charging coil.

5. The shell structure according to claim 4, characterized in that, The magnetic material layer is disposed opposite to the charging coil, and the projection of the magnetic material layer on the plane of the charging coil covers the charging coil.

6. The shell structure according to claim 4, characterized in that, The magnetic material layer is located between the charging coil and the wireless charging circuit.

7. The shell structure according to claim 4, characterized in that, The magnetic material layer is disposed on the surface of the body; or, The magnetic material layer is disposed in the receiving cavity within the body.

8. The shell structure according to claim 4, characterized in that, The magnetic material layer includes a nanocrystalline material layer.

9. An electronic device, characterized in that, The electronic device includes a wireless charging circuit and a housing structure as described in any one of claims 1 to 8, wherein the wireless charging circuit is electrically connected to the first electrical connection portion of the housing structure.

10. The electronic device according to claim 9, characterized in that, The housing structure is the rear shell of the electronic device.

11. The electronic device according to claim 9, characterized in that, The wireless charging circuit is disposed on a circuit board, and the circuit board is provided with a second electrical connection portion that is electrically connected to the input terminal of the wireless charging circuit; the charging coil is electrically connected to the input terminal of the wireless charging circuit through the first electrical connection portion and the second electrical connection portion.

12. An accessory for an electronic device, characterized in that, The electronic device accessory includes a housing structure as described in any one of claims 1 to 8, and the electronic device accessory is detachably connected to the electronic device.

13. The electronic device accessory according to claim 12, characterized in that, The electronic device accessory is a protective case for the electronic device.

14. The electronic device accessory according to claim 12 or 13, characterized in that, The electronic device includes a back cover and a wireless charging circuit. The back cover includes a third electrical connection portion, and the charging coil is electrically connected to the input terminal of the wireless charging circuit through the first electrical connection portion and the third electrical connection portion.

15. The electronic device accessory according to claim 14, characterized in that, The electronic device further includes a first protection circuit, which is electrically connected to the input terminal of the wireless charging circuit and is used to provide overvoltage protection for the wireless charging circuit.

16. The electronic device accessory according to claim 15, characterized in that, The input terminals of the wireless charging circuit include a first input terminal and a second input terminal; the first protection circuit includes: The first Zener diode has its first anode electrically connected to the first input terminal of the wireless charging circuit, and its second anode electrically connected to the ground terminal. The second Zener diode has its first anode electrically connected to the second input terminal of the wireless charging circuit, and its second anode electrically connected to the ground terminal.

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