CN221042367U - Protective housing of electronic device and charging system - Google Patents

Abstract

The disclosure relates to the field of charging technologies, and in particular, to a protective housing of an electronic device and a charging system. Wherein, the protective housing of electronic equipment includes: the wireless charging receiving module is electrically connected with the power supply conversion module; the electronic pen caulking groove is used for inserting an electronic pen, and the power supply conversion module is electrically connected with the electronic pen; the wireless charging receiving module converts electromagnetic waves emitted by the wireless transmitting module in the electronic equipment into alternating current; the power conversion module converts alternating current into direct current and outputs the direct current to the electronic pen. The technical scheme of this disclosure, when can realize charging for the electronic pen, solved among the prior art through the battery capacity that increases the electronic pen, increase battery capacity leads to the weight and the volume increase of electronic pen to cause the electronic pen to use and carry inconvenient, and the not pleasing to the eye problem of appearance.

Description

Protective housing of electronic device and charging system

Technical Field

The disclosure relates to the field of charging technologies, and in particular, to a protective housing of an electronic device and a charging system.

Background

With the continuous development of technology, electronic devices such as mobile phones have become communication products that are indispensable for users to carry around daily. To protect electronic devices such as mobile phones, users typically use a mobile phone housing that provides effective protection for the mobile phone. As mobile phones become popular in young communities, mobile phone housings have become one way for them to demonstrate personalities, and in order to meet this trend, mobile phone manufacturers have introduced a number of unique mobile phone housing products.

However, the existing mobile phone shell is mostly uniform in style, simple in structure, single in function, and incapable of meeting diversified demands of users except for the function of protecting mobile phones. For example, electronic pens, which are pen bodies that can write or indicate by using electric power as an auxiliary device of an electronic device, include touch screen pens, laser pens, and capacitive pens. Electronic pens are generally provided with a battery in the pen body as an energy source. As the functions of the electronic pen are increased, the power consumption of the electronic pen is increased, and the required battery capacity is larger. However, increasing the battery capacity tends to increase the weight and volume of the electronic pen, which causes the problems of inconvenient use and carrying of the electronic pen and unattractive appearance.

Disclosure of utility model

In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a protective housing and a charging system for an electronic device, which can charge an electronic pen, so as to satisfy the power consumption of the electronic pen, and solve the problems of inconvenient use and carrying and unattractive appearance of the electronic pen caused by increasing the battery capacity of the electronic pen and increasing the weight and volume of the electronic pen caused by increasing the battery capacity in the prior art.

In a first aspect, the present disclosure provides a protective case for an electronic device, comprising:

The electronic pen embedded groove comprises a wireless charging receiving module, a power supply conversion module and an electronic pen embedded groove, wherein the wireless charging receiving module is electrically connected with the power supply conversion module; the electronic pen caulking groove is used for inserting an electronic pen, and the power supply conversion module is electrically connected with the electronic pen;

The wireless charging receiving module converts electromagnetic waves emitted by the wireless transmitting module in the electronic equipment into alternating current, and the power supply conversion module converts the alternating current into direct current and outputs the direct current to the electronic pen.

In some embodiments, the power conversion module and the electronic pen bezel are disposed on a side of a protective housing of the electronic device.

In some embodiments, the protective housing of the electronic device further comprises:

and the accommodating caulking groove is used for accommodating the wireless charging receiving module.

In some embodiments, the power conversion module includes a control unit and a filtering unit;

the input end of the control unit is electrically connected with the wireless charging receiving module, and the output end of the control unit is electrically connected with the filtering unit.

In some embodiments, the control unit comprises a rectifying device;

The rectifying device is used for converting the received alternating current into the direct current and outputting the direct current to the filtering unit.

In some embodiments, a plurality of electrical contacts are disposed in the electronic pen bezel and electrically connected to the power conversion module via a flat cable;

The electronic pen inserted into the electronic pen caulking groove is electrically connected with the electric contact, and the electric contact is a metal elastic convex contact.

In some embodiments, the electrical contacts include a first electrical contact, a second electrical contact, a third electrical contact, a fourth electrical contact, and a fifth electrical contact;

The power conversion module outputs positive current signals to the electronic pen through the first electric contact, the power conversion module establishes communication relation with the electronic pen through the second electric contact and the third electric contact, the power conversion module outputs negative current signals to the electronic pen through the fourth electric contact, and the power conversion module obtains temperature information of a battery in the electronic pen through the fifth electric contact.

In some embodiments, the electronic pen caulking groove is provided with an adsorption unit;

and the electronic pen inserted into the electronic pen caulking groove is adsorbed in the electronic pen caulking groove through the adsorption unit.

In a second aspect, the present disclosure also provides a charging system, comprising:

a protective case of an electronic device as described in the first aspect;

The electronic equipment and the electronic pen charge the electronic pen through a protective shell of the electronic equipment.

In some embodiments, the electronic pen includes a plurality of annular metal contact surfaces and an annular metal surface;

The electronic pen is inserted into the electronic pen caulking groove, the plurality of annular metal contact surfaces are electrically connected with the plurality of electric contacts in the electronic pen caulking groove in a one-to-one correspondence manner, and the annular metal surfaces are adsorbed by the adsorption unit in the electronic pen caulking groove.

The protection casing of the electronic equipment provided by the embodiment of the disclosure comprises: the wireless charging receiving module is electrically connected with the power supply conversion module; the electronic pen caulking groove is used for inserting an electronic pen, and the power supply conversion module is electrically connected with the electronic pen; the wireless charging receiving module converts electromagnetic waves emitted by the wireless transmitting module in the electronic equipment into alternating current; the power conversion module converts alternating current into direct current and outputs the direct current to the electronic pen. From this, set up wireless charge receiving module, power conversion module and electron pen caulking groove at electronic equipment's protective housing, with electronic equipment's wireless reverse function of charging, can realize charging for the electron pen to satisfy the consumption of electron pen, thereby solved among the prior art in order to satisfy the consumption of electron pen, through the battery capacity that increases the electron pen, increase battery capacity leads to the weight and the volume increase of electron pen, thereby cause the electron pen to use and carry all inconvenient, its appearance is also unsightly problem.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic front view of a protective casing of an electronic device according to an embodiment of the disclosure;

Fig. 2 is a schematic side structure of a protective casing of an electronic device according to an embodiment of the disclosure;

fig. 3 is a schematic side structure of a protective casing of another electronic device according to an embodiment of the disclosure;

Fig. 4 is a schematic bottom edge structure of a protective casing of an electronic device according to an embodiment of the disclosure;

FIG. 5 is a schematic circuit diagram of an embodiment of the present disclosure;

Fig. 6 is a schematic structural diagram of a charging system according to an embodiment of the disclosure;

Fig. 7 is a schematic structural diagram of an electronic pen according to an embodiment of the disclosure;

Fig. 8 is a schematic diagram of a battery temperature detection circuit of an electronic pen according to an embodiment of the disclosure.

10, A protective shell of the electronic equipment; 11. a wireless charging receiving module; 011. a receiving groove; 12. a power conversion module; 13. an electronic pen caulking groove; 14. a camera hole; 15. a power key hole; 16. a volume key hole; 17. a speaker hole; 18. Type-C interface hole; 19. a temperature detection module; 20. a control unit; 21. a filtering unit; 22. a rectifying device; 23. an electrical contact; 231. a first electrical contact; 232 a second electrical contact; 233. a third electrical contact; 234. a fourth electrical contact; 235. a fifth electrical contact; 24. a flat cable; 25. an adsorption unit; 26. an electronic device; 27. an electronic pen; 28. an annular metal contact surface; 281. a first annular metal contact surface; 282. a second annular metal contact surface; 283. a third annular metal contact surface; 284. a fourth annular metal contact surface; 285. a fifth annular metal contact surface; 29. an annular metal surface; 30. a charging system; 31. a battery; A. an input of the control unit; B. an output of the control unit; C. a detection end of the temperature detection module; D. and the output end of the temperature detection module.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

According to the protective casing of the electronic equipment, the wireless charging receiving module, the power conversion module and the electronic pen caulking groove are arranged, the wireless reverse charging function of the electronic equipment is adopted, charging can be achieved for the electronic pen, power consumption of the electronic pen is met, the problem that in the prior art, the power consumption of the electronic pen is met, the weight and the volume of the electronic pen are increased due to the fact that the battery capacity is increased through the fact that the battery capacity is increased, and therefore the electronic pen is inconvenient to use and carry, and the appearance of the electronic pen is also not attractive is solved.

Fig. 1 is a schematic front structural view of a protective casing of an electronic device according to an embodiment of the present disclosure, and fig. 2 is a schematic side structural view of a protective casing of an electronic device according to an embodiment of the present disclosure. As shown in fig. 1 and 2, a protective case 10 of an electronic device includes: the wireless charging receiving module 11 (comprising a wireless coil), the power conversion module 12 and the electronic pen caulking groove 13, wherein the wireless charging receiving module 11 is electrically connected with the power conversion module 12; the electronic pen caulking groove 13 is used for inserting an electronic pen, and the power conversion module 12 is electrically connected with the electronic pen; the wireless charging receiving module 11 converts electromagnetic waves emitted by the wireless transmitting module in the electronic equipment into alternating current; the power conversion module 12 converts the alternating current into direct current and outputs the direct current to the electronic pen.

Specifically, when the electronic pen needs to be charged, the electronic pen is inserted into the electronic pen caulking groove 13, a wireless reverse charging function of the electronic device such as a mobile phone is started, electromagnetic waves are emitted to the wireless charging receiving module 11 through a wireless coil in a wireless transmitting module in the electronic device, the wireless coil in the wireless charging receiving module 11 converts the electromagnetic waves into alternating current, and the alternating current is output to the power supply conversion module 12. The power conversion module 12 converts the alternating current into the direct current required by the electronic pen and outputs the direct current to the electronic pen, so as to charge the electronic pen.

Thus, by providing the wireless charging receiving module 11 and the power conversion module 12 on the protective case 10 of the electronic device, the function of charging the electronic pen through the protective case 10 of the electronic device can be realized by utilizing the wireless reverse charging function of the electronic device.

In the prior art, in order to meet the power consumption of the electronic pen, the battery capacity of the electronic pen is increased, and the weight and the volume of the electronic pen are increased due to the increased battery capacity, so that the electronic pen is inconvenient to use and carry, and the appearance of the electronic pen is also unsightly. Compared with the prior art, the wireless reverse charging function of the electronic equipment is utilized, the wireless charging receiving module, the power conversion module and the electronic pen caulking groove are arranged on the protective shell of the electronic equipment, charging can be realized for the electronic pen, power consumption of the electronic pen is met, the problem that in the prior art, in order to meet the power consumption of the electronic pen, the weight and the volume of the electronic pen are increased due to the fact that the battery capacity of the electronic pen is increased, and therefore the electronic pen is inconvenient to use and carry, and the appearance of the electronic pen is also not attractive is solved.

The protection casing of the electronic equipment provided by the embodiment of the disclosure comprises: the wireless charging receiving module is electrically connected with the power supply conversion module; the electronic pen caulking groove is used for inserting an electronic pen, and the power supply conversion module is electrically connected with the electronic pen; the wireless charging receiving module converts electromagnetic waves emitted by the wireless transmitting module in the electronic equipment into alternating current; the power conversion module converts alternating current into direct current and outputs the direct current to the electronic pen. From this, set up wireless receiving module, power conversion module and the electronic pen caulking groove that charges in electronic equipment's protective housing, utilize electronic equipment's wireless reverse function of charging, can realize charging for the electronic pen, satisfy the consumption of electronic pen, solved among the prior art in order to satisfy the consumption of electronic pen, through the battery capacity that increases the electronic pen, increase battery capacity leads to the weight and the volume increase of electronic pen to cause the electronic pen to use and carry all inconveniently, its appearance is also unsightly problem.

In some embodiments, referring to fig. 2, the power conversion module 12 and the electronic pen bezel 13 are disposed on the side of the protective housing 10 of the electronic device.

Specifically, the power conversion module 12 and the electronic pen caulking groove 13 are arranged on the side edge of the protective casing 10 of the electronic device, which is favorable for keeping the appearance of the protective casing 10 of the electronic device attractive and improving the visual experience of a user.

In some embodiments, with continued reference to fig. 2, the protective housing 10 of the electronic device further includes: a receiving recess 011 for receiving the wireless charging receiving module 11. The accommodating caulking groove 011 can be arranged close to the position of the wireless coil of the wireless transmitting module in the electronic equipment, so that the wireless coil of the wireless transmitting module of the protective casing and the invalid coil of the electronic equipment are close to the wireless coil of the wireless transmitting module of the protective casing, and the electromagnetic wave transmitting and receiving efficiency is improved when the electronic pen is charged, and the charging efficiency is improved.

Fig. 3 is a schematic side structure diagram of a protective casing of another electronic device according to an embodiment of the present disclosure, and fig. 4 is a schematic bottom structure diagram of a protective casing of an electronic device according to an embodiment of the present disclosure. The side of the protective casing of the electronic device shown in fig. 3 is opposite to the side of the protective casing of the electronic device shown in fig. 2. On the basis of fig. 1, in combination with fig. 3 and 4, a camera hole 14, a power key hole 15, a volume key hole 16, a speaker hole 17 and a Type-C interface hole 18 are provided on a protective housing 10 of the electronic device.

The sizes of the camera hole 14 and the like and the protective casing 10 of the electronic device may be changed into holes with different sizes and casings of electronic devices with different sizes according to different models of electronic devices, for example, mobile phones, or the positions of the camera hole 14 and the power key hole 15 and the like in the protective casing 10 of the electronic device may be adapted according to different models of electronic devices, for example, mobile phones, and the embodiment of the disclosure is not specifically limited herein.

In some embodiments, fig. 5 is a schematic circuit diagram provided in an embodiment of the disclosure. Referring to fig. 2 and 5, the power conversion module 12 includes a control unit 20 and a filtering unit 21; the input terminal a of the control unit 20 is electrically connected to the wireless charging receiving module 11, and the output terminal B of the control unit 20 is electrically connected to the filtering unit 21.

Wherein the control unit 20 comprises a rectifying device 22. The control unit 20, for example, a control chip, is configured to receive the ac power output by the wireless charging receiving module 11, convert the ac power into dc power through a rectifying device 22 in the control unit 20, and output the dc power to the filtering unit 21, and perform filtering through the filtering unit 21.

Thus, the electronic pen is inserted into the electronic pen insertion groove 13, the wireless reverse charging function of the electronic device such as a mobile phone is started, electromagnetic waves are emitted to the wireless charging receiving module 11 through the wireless coil of the wireless transmitting module in the electronic device, the wireless coil in the wireless charging receiving module 11 receives the electromagnetic waves and converts the electromagnetic waves into alternating current and inputs the alternating current into the power conversion module 12, and the power conversion module 12 converts the alternating current into direct current and filters the direct current through controlling the rectifying device 22 and the filtering unit 21 to charge the electronic pen.

In some embodiments, referring to fig. 2, a plurality of electrical contacts 23 are disposed in the electronic pen bezel 13, the plurality of electrical contacts 23 being electrically connected to the power conversion module 12 via a flat cable 24; the electronic pen inserted into the electronic pen insertion groove 13 is electrically connected with the electrical contact 23, and the electrical contact 23 is a metal elastic convex contact.

Specifically, the electronic pen caulking groove 13 is internally provided with a flat cable 24 and an electric contact 23 for transmitting power and signals, and both ends of the flat cable 24 are respectively connected with the power conversion module 12 and the electric contact 23. Wherein the electrical contact 23 may be provided as a metallic spring-loaded male contact, which is advantageous for ensuring a reliable engagement of the electrical contact 23 with an annular metallic contact surface provided on the electronic pen (as described below) when the electronic pen is inserted into the electronic pen recess 13. The flat cable 24 is formed by connecting a plurality of wires in parallel, and the wires are arranged in one-to-one correspondence with the electrical contacts 23.

In some embodiments, with continued reference to fig. 2, the electrical contacts include a first electrical contact 231, a second electrical contact 232, a third electrical contact 233, a fourth electrical contact 234, and a fifth electrical contact 235; the power conversion module 12 outputs a positive current signal to the electronic pen through the first electrical contact 231, the power conversion module 12 establishes a communication relationship with the electronic pen through the second electrical contact 232 and the third electrical contact 233, the power conversion module 12 outputs a negative current signal to the electronic pen through the fourth electrical contact 234, and the power conversion module 12 obtains temperature information of a battery in the electronic pen through the fifth electrical contact 235, and how to obtain the temperature information of the battery can be described below.

Specifically, referring to fig. 1, 2 and 5, when the electronic pen is inserted into the electronic pen insertion slot 13, the electronic pen establishes communication with the electronic pen through the second electrical contact 232 and the third electrical contact 233, and sends an Identity (ID) request to the power conversion module 12, and after receiving the ID request, the control unit 20 in the power conversion module 12 returns the ID to the electronic pen, so as to pair.

After the pairing is successful, the electronic pen sends the information such as the charging request and the electric quantity to the control unit 20 of the power conversion module 12, after the control unit 20 receives the information, the wireless charging receiving module 11 sends a charging request signal to the electronic equipment such as a mobile phone, and after the mobile phone receives the charging request, the mobile phone sends stronger electromagnetic waves to the wireless charging receiving module 11 by starting the reverse charging function of the mobile phone. The wireless coil in the wireless charging receiving module 11 converts the received electromagnetic wave into alternating current and outputs to the power conversion module 12, and the power conversion module 12 converts the alternating current into direct current and then transmits to the first electric contact 231 and the fourth electric contact 234 through the flat cable 24 to charge the electronic pen.

In the charging process, the electronic pen communicates with the control unit 20 of the power conversion module 12 in real time through the second electrical contact 232 and the third electrical contact 233, transmits information such as charging current, voltage and electric quantity, and the like, and the control unit 20 of the power conversion module 12 communicates with electronic equipment such as a mobile phone in real time through the wireless charging receiving module 11 and sends current and voltage requests required by the work of the electronic equipment. The battery temperature information inside the electronic pen is detected through the fifth electrical contact 235, and the battery temperature information of the electronic pen is transmitted to the control unit 20 of the power conversion module 12, and when the detected temperature is, for example, greater than 45 ℃, charging is stopped, which is beneficial to ensuring safety.

In some embodiments, referring to fig. 2, an adsorption unit 25 is provided in the electronic pen bezel 13; the electronic pen inserted into the electronic-pen insertion groove 13 is sucked into the electronic-pen insertion groove 13 by the suction unit 25.

Specifically, the electronic pen caulking groove 13 is internally provided with an adsorption unit 25 such as a small magnet, when the electronic pen is inserted into the electronic pen caulking groove 13, an annular metal surface (as described below) arranged on the electronic pen is contacted with the adsorption unit 25, and the small magnet can absorb the annular metal surface with slight magnetic force, so that the electronic pen is ensured not to slide out of the electronic pen caulking groove 13, and meanwhile, because the magnetic force is not very large, the electronic pen is also convenient for a user to take out.

On the basis of the embodiment, the disclosure also provides a charging system. Fig. 6 is a schematic structural diagram of a charging system according to an embodiment of the disclosure. As shown in fig. 6, the charging system 30 includes the protective case 10 of the electronic device, the electronic device 26, and the electronic pen 27 as in the above-described embodiments, and the electronic device 26 charges the electronic pen 27 through the protective case 10 of the electronic device. And thus have the same or similar beneficial effects and are not described in detail herein.

In some embodiments, fig. 7 is a schematic structural diagram of an electronic pen according to an embodiment of the disclosure. Referring to fig. 2 and 7, the electronic pen includes a plurality of annular metal contact surfaces 28 and an annular metal surface 29; the electronic pen 27 is inserted into the electronic pen insertion groove 13, a plurality of annular metal contact surfaces 28 are electrically connected with a plurality of electric contacts 23 in the electronic pen insertion groove 13 in a one-to-one correspondence manner, and the annular metal surfaces 29 are adsorbed with the adsorption units 25 in the electronic pen insertion groove 13.

Specifically, when the electronic pen 27 is inserted into the electronic-pen insertion groove 13, the annular metal contact surfaces 28 provided in the electronic pen 27 are respectively brought into contact with the electrical contacts 23 provided in the electronic-pen insertion groove 13. As shown in fig. 7, the annular metal contact surface 28 provided in the electronic pen 27 includes five annular metal contact surfaces, which are a first annular metal contact surface 281, a second annular metal contact surface 282, a third annular metal contact surface 283, a fourth annular metal contact surface 284, and a fifth annular metal contact surface 285, respectively.

Wherein the first annular metal contact surface 281 is in contact with the first electrical contact 231, the second annular metal contact surface 282 is in contact with the second electrical contact 232, the third annular metal contact surface 283 is in contact with the third electrical contact 233, the fourth annular metal contact surface 284 is in contact with the fourth electrical contact 234, and the fifth annular metal contact surface 285 is in contact with the fifth electrical contact 235.

Thus, the communication relationship between the power conversion module 12 and the electronic pen 27 can be realized, the power conversion module 12 charges the electronic pen 27, and the power conversion module 12 detects the battery temperature of the electronic pen 27.

Fig. 8 is a schematic diagram illustrating a battery temperature detection circuit of an electronic pen according to an embodiment of the disclosure. Referring to fig. 2, 7 and 8, the temperature detection module 19 may be disposed on the fifth annular metal contact surface 285, and when the electronic pen 27 is inserted into the electronic pen slot 13, the detection end C of the temperature detection module 19 is electrically connected to the battery 31 in the electronic pen 27, for obtaining temperature information of the battery 32; when the electronic pen 27 is inserted into the electronic pen insertion slot 13, the output D of the temperature detection module 19 is electrically connected to the fifth electrical contact 235, whereby the temperature of the battery 31 can be detected through the fifth electrical contact 235.

When the electronic pen 27 is inserted into the electronic pen slot 13, the annular metal surface 29 contacts with the adsorption unit 25, such as a small magnet, and the small magnet can absorb the annular metal surface 29 with slight magnetic force, so that the electronic pen 27 is ensured not to slide out of the electronic pen slot 13, and meanwhile, the user can conveniently take out the electronic pen 27 because the magnetic force is not very large.

Therefore, the charging system provided by the embodiment of the disclosure comprises a protective shell of the electronic equipment, the electronic equipment and the electronic pen. When the electronic device such as a mobile phone is charged, a wireless reverse charging function is required to be started, electromagnetic waves are sent to a wireless charging receiving module of a protective shell of the electronic device, a receiving coil in the wireless charging receiving module converts the electromagnetic waves into alternating current and inputs the alternating current into a power supply conversion module, and the power supply conversion module converts the alternating current into direct current through an internal rectifying and filtering part and charges an electronic pen after filtering.

When the electronic pen is inserted into the electronic pen caulking groove, the electronic pen establishes a communication relationship with the electronic pen, and sends an Identity (ID) request to the power conversion module, and after receiving the ID request, a control unit in the power conversion module returns the ID to the electronic pen, so that pairing is performed. After the pairing is successful, the electronic pen sends information such as a charging request and electric quantity to the power supply conversion module, and then sends a charging request signal to electronic equipment such as a mobile phone through the wireless charging receiving module, and after the mobile phone receives the charging request, the mobile phone sends stronger electromagnetic waves to the wireless charging receiving module by starting a reverse charging function.

In addition, can realize detecting the inside battery temperature information of electronic pen, the battery temperature information transmission of electronic pen gives the control unit of power conversion module, when detecting that the temperature is greater than 45 ℃ for example, stops charging, is favorable to guaranteeing safety.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The above is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A protective case for an electronic device, comprising:

The electronic pen embedded groove comprises a wireless charging receiving module, a power supply conversion module and an electronic pen embedded groove, wherein the wireless charging receiving module is electrically connected with the power supply conversion module; the electronic pen caulking groove is used for inserting an electronic pen, and the power supply conversion module is electrically connected with the electronic pen;

The wireless charging receiving module converts electromagnetic waves emitted by the wireless transmitting module in the electronic equipment into alternating current, and the power supply conversion module converts the alternating current into direct current and outputs the direct current to the electronic pen.

2. The protective case of an electronic device according to claim 1, wherein the power conversion module and the electronic pen bezel are disposed at sides of the protective case of the electronic device.

3. The protective case of an electronic device according to claim 1, further comprising:

and the accommodating caulking groove is used for accommodating the wireless charging receiving module.

4. The protective case of an electronic device according to claim 1, wherein the power conversion module includes a control unit and a filter unit;

the input end of the control unit is electrically connected with the wireless charging receiving module, and the output end of the control unit is electrically connected with the filtering unit.

5. The protective case of an electronic device according to claim 4, wherein the control unit includes a rectifying means;

The rectifying device is used for converting the received alternating current into the direct current and outputting the direct current to the filtering unit.

6. The protective case of an electronic device according to claim 1, wherein a plurality of electrical contacts are provided in the electronic pen bezel, the plurality of electrical contacts being electrically connected to the power conversion module through a flat cable;

The electronic pen inserted into the electronic pen caulking groove is electrically connected with the electric contact, and the electric contact is a metal elastic convex contact.

7. The protective housing of an electronic device of claim 6, wherein the electrical contacts comprise a first electrical contact, a second electrical contact, a third electrical contact, a fourth electrical contact, and a fifth electrical contact;

The power conversion module outputs positive current signals to the electronic pen through the first electric contact, the power conversion module establishes communication relation with the electronic pen through the second electric contact and the third electric contact, the power conversion module outputs negative current signals to the electronic pen through the fourth electric contact, and the power conversion module obtains temperature information of a battery in the electronic pen through the fifth electric contact.

8. The protective case of an electronic device according to claim 1, wherein an adsorption unit is provided in the electronic pen caulking groove;

and the electronic pen inserted into the electronic pen caulking groove is adsorbed in the electronic pen caulking groove through the adsorption unit.

9. A charging system, comprising:

A protective case for an electronic device as claimed in any one of claims 1 to 8;

The electronic equipment and the electronic pen charge the electronic pen through a protective shell of the electronic equipment.

10. The charging system of claim 9, wherein the electronic pen comprises a plurality of annular metal contact surfaces and an annular metal surface;

The electronic pen is inserted into the electronic pen caulking groove, the plurality of annular metal contact surfaces are electrically connected with the plurality of electric contacts in the electronic pen caulking groove in a one-to-one correspondence manner, and the annular metal surfaces are adsorbed by the adsorption unit in the electronic pen caulking groove.