Mobile power supply

Abstract

The present application relates to a mobile power supply. The mobile power supply comprises a mobile power supply body and a watch charging assembly. The watch charging assembly comprises a base body, a wireless charging coil, an induction coil, and a watch detection module. The base body is movably arranged on a surface of the mobile power supply body and is movable in a direction away from or approaching the mobile power supply body. The wireless charging coil and the induction coil are arranged on the base body, the watch detection module is separately connected to the induction coil and the mobile power supply body, and the wireless charging coil is connected to the mobile power supply body. When a watch is wirelessly charged by means of the mobile power supply, user intervention is not required, and instant charging is achieved, thereby improving the charging convenience of the mobile power supply.

Description

Mobile power supply

[0001] Related applications

[0002] The present application claims priority to the Chinese patent application No. 202421840119.5, filed on July 31, 2024, entitled "Mobile power supply", the contents of which are hereby incorporated by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of wireless charging technology, in particular to a mobile power supply. BACKGROUND

[0004] The mobile power supply is a portable charger that can be carried around, stores electrical energy itself, and mainly charges consumer electronic products such as handheld mobile devices. With the development of science and technology, mobile power supplies with wireless charging function are gradually applied in daily life.

[0005] However, in the related art, when a wearable device such as a watch is wirelessly charged by a mobile power supply, the charging convenience is poor.

[0006] SUMMARY

[0007] Therefore, it is necessary to provide a mobile power supply, so that when a wearable device such as a watch is wirelessly charged by the mobile power supply, no user intervention is required, and the charging convenience of the mobile power supply is improved.

[0008] The present application provides a mobile power supply, comprising: a mobile power supply body and a watch charging assembly, the watch charging assembly comprising a base body, a wireless charging coil, an induction coil and a watch detection module, the base body is arranged on the surface of the mobile power supply body, the wireless charging coil and the induction coil are arranged on the base body, the watch detection module is connected to the induction coil and the mobile power supply body respectively, and the wireless charging coil is connected to the mobile power supply body; when a to-be-charged watch is attached to the watch charging assembly, the electric field of the induction coil will change, and the watch detection module is used to charge the to-be-charged watch by the mobile power supply body when the change of the electric field of the induction coil is detected.

[0009] In one embodiment, the base body is arranged on the surface of the mobile power supply body and can move away from or approach the mobile power supply body.

[0010] In one embodiment, the base body is rotatably arranged on the mobile power supply body.

[0011] In one of the embodiments, the base body comprises a rotating member and a support, the rotating member is arranged on the power bank body, and the support is connected to the rotating member, and the wireless charging coil and the induction coil are arranged on the support.

[0012] In one of the embodiments, the support comprises a first support member, a cover member and a second support member, the first support member is connected to the rotating member, the induction coil is arranged on a first surface of the first support member, and is arranged along the edge of the first surface, the first surface is a surface of the first support member away from the power bank body; the second support member is arranged on the first surface and is located within the area surrounded by the induction coil; the cover member covers a second surface of the second support member, the second surface is a surface of the second support member away from the first support member, the wireless charging coil is embedded in the inside of the second support member, and the distance from the wireless charging coil to the first surface is greater than the distance from the induction coil to the first surface.

[0013] In one of the embodiments, the projection of the first support member and the second support member on the horizontal plane is circular or annular.

[0014] In one of the embodiments, the power bank further comprises a rotation detection assembly, the rotation detection assembly is arranged on the power bank body, and is used for detecting the rotation angle of the watch charging assembly.

[0015] In one of the embodiments, the power bank further comprises a control mainboard, the control mainboard is used for controlling the output level signal of the power bank body based on the rotation angle of the watch charging assembly.

[0016] In one of the embodiments, the control mainboard is used for outputting a first level signal to the power bank body when the watch charging assembly rotates to a set angle, and outputting a second level signal to the power bank body when the watch charging assembly does not rotate or the rotation does not reach the set angle; the set angle is greater than 0 degrees and less than 90 degrees.

[0017] In one of the embodiments, the set angle is 9 degrees-12 degrees.

[0018] In one of the embodiments, the watch charging assembly further comprises a magnet arranged on the base body, and the rotation detection assembly is a magnetic field detection rotation assembly, the magnetic field detection rotation assembly is used for determining the rotation angle of the watch charging assembly according to the change of the magnetic field intensity.

[0019] In one of the embodiments, the magnetic field detection rotating assembly is further configured to match the detected magnetic flux change amount with a stored correspondence between magnetic flux change amount and rotation angle, and determine the rotation angle of the watch charging assembly.

[0020] In one of the embodiments, the magnetic field detection rotating assembly comprises a magnetic induction chip, a first resistor, a first capacitor and a second capacitor, an output terminal of the magnetic induction chip is connected to a first terminal of the first resistor, a first terminal of the first capacitor and the mobile power supply body, a second terminal of the first resistor is connected to a power supply, a power supply terminal of the magnetic induction chip is connected to a first terminal of the second capacitor and the power supply, a grounding terminal of the magnetic induction chip, a second terminal of the first capacitor and a second terminal of the second capacitor are grounded respectively.

[0021] In one of the embodiments, the mobile power supply further comprises a display screen, the display screen and the watch charging assembly are arranged on the same surface of the mobile power supply body, the display screen is connected to the mobile power supply body, and the display screen is configured to display the content in reverse in the case that the mobile power supply body receives the first level signal.

[0022] In one of the embodiments, the watch detection module comprises an electric field induction chip, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a third capacitor, a fourth capacitor and a fifth capacitor, a power supply pin of the electric field induction chip is connected to a first terminal of the third capacitor, the first terminal of the third capacitor is further connected to a first terminal of the fourth capacitor and a first terminal of the second resistor, a second terminal of the second resistor is connected to a power supply, a second terminal of the third capacitor, a second terminal of the fourth capacitor, a grounding pin of the electric field induction chip and a first mode pin of the electric field induction chip are grounded respectively, a second mode pin of the electric field induction chip is connected to the mobile power supply body through the third resistor, a detection pin of the electric field induction chip is connected to a first terminal of the fourth resistor and a first terminal of the fifth capacitor, a second terminal of the fourth resistor is connected to the induction coil, a second terminal of the fifth capacitor is connected to a power supply grounding pin of the electric field induction chip, the power supply grounding pin of the electric field induction chip is grounded, and an output pin of the electric field induction chip is connected to the mobile power supply body through the fifth resistor.

[0023] In one of the embodiments, a receiving cavity is formed on the surface of the mobile power supply body, and the watch charging assembly is arranged in the receiving cavity.

[0024] In one of the embodiments, the mobile power supply body comprises a shell, a charging and discharging circuit, an energy storage element and a controller, the charging and discharging circuit, the energy storage element and the controller are arranged inside the shell, the watch charging assembly is arranged on the shell, the wireless charging coil and the energy storage element are connected to the charging and discharging circuit respectively, and the charging and discharging circuit is connected to the controller.

[0025] In the above scheme, the mobile power supply comprises a mobile power supply body and a watch charging assembly, wherein the watch charging assembly comprises a base, a wireless charging coil, an induction coil and a watch detection module, the base is arranged on the surface of the mobile power supply body, the wireless charging coil and the induction coil are arranged on the base, the watch detection module is connected to the induction coil and the mobile power supply body respectively, and the wireless charging coil is connected to the mobile power supply body. In this way, when the watch to be charged is attached to the watch charging assembly, the electric field of the induction coil will change, and the watch detection module can detect the change of the electric field of the induction coil caused by the attachment of the watch to be charged, so as to charge the watch to be charged by the mobile power supply body. Through the scheme, when the watch is wirelessly charged by the mobile power supply, the user does not need to intervene, the watch can be charged as soon as it is attached, and the charging convenience of the mobile power supply is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by the person skilled in the art without creative labor on the basis of the disclosed drawings.

[0027] Fig. 1 is a schematic diagram of the structure of the mobile power supply in an embodiment of the present application;

[0028] Fig. 2 is a schematic diagram of the structure of the mobile power supply in another embodiment of the present application;

[0029] Fig. 3 is a schematic diagram of the exploded structure of the base in an embodiment of the present application;

[0030] Fig. 4 is a schematic diagram of the exploded structure of the mobile power supply in an embodiment of the present application;

[0031] Fig. 5 is a schematic diagram of the structure of the mobile power supply in another embodiment of the present application;

[0032] Fig. 6 is a schematic diagram of the circuit structure of the rotation detection assembly in an embodiment of the present application;

[0033] Fig. 7 is a schematic diagram of the circuit structure of the watch detection module in an embodiment of the present application.

[0034] Explanation of reference signs: 10 - mobile power supply body, 20 - watch charging assembly, 21 - base body, 22 - induction coil, 23 - wireless charging coil, 24 - magnet, 25 - watch detection module; 210 - support, 220 - rotating piece; 211 - first support part, 212 - second support part, 213 - cover; 11 - display screen, 12 - containing cavity; 40 - rotation detection assembly; C1 - first capacitor, C2 - second capacitor, R1 - first resistor, U1 - magnetic induction chip; R2 - second resistor, R3 - third resistor, R4 - fourth resistor, R5 - fifth resistor, C3 - third capacitor, C4 - fourth capacitor, C5 - fifth capacitor, U2 - electric field induction chip. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] The mobile power supply provided by the embodiments of the present application can be used for wireless charging of a watch. The watch referred to in the present application should be understood as a device worn on a user's wrist and having a display function of time, including a smart watch, a bracelet, etc.

[0037] It should be pointed out that the number of wireless charging position points of the mobile power supply is not unique, and the shapes and structures of different position points can be set to be different to adapt to different types of devices to be charged. For example, in an embodiment, the mobile power supply can include at least one position point for wireless charging (which can be magnetic attraction wireless charging or non-magnetic attraction wireless charging) of a watch, and at least one position point for charging (which can be magnetic attraction wireless charging or non-magnetic attraction wireless charging) of an electronic device such as a mobile phone.

[0038] Further, in another embodiment, the mobile power supply of the present application can also be configured with a wired charging function, that is, a charging interface is formed on the side surface of the mobile power supply body, and in the case that a charging wire is inserted into the charging interface, the mobile power supply outputs electric energy to the device to be charged.

[0039] Referring to Fig. 1, the application provides a mobile power supply, comprising a mobile power supply body 10 and a watch charging assembly 20, the watch charging assembly 20 comprising a base body 21, a wireless charging coil 23, an induction coil 22 and a watch detection module 25, the base body 21 being arranged on the surface of the mobile power supply body 10, the wireless charging coil 23 and the induction coil 22 being arranged on the base body 21, the watch detection module 25 being connected to the induction coil 22 and the mobile power supply body 10 (connection relationship diagram not shown) respectively, and the wireless charging coil 23 being connected to the mobile power supply body 10 (connection relationship diagram not shown); when a watch to be charged is attached to the watch charging assembly 20, the electric field of the induction coil 22 will change, and the watch detection module 25 is used to charge the watch to be charged by the mobile power supply body 10 when detecting the change of the electric field of the induction coil 22.

[0040] The mobile power supply body 10 is the part of the mobile power supply used to store and manage electric energy. The wireless charging coil 23 is the coil used to couple with the coil of the watch to be charged, and transmit electric energy to the coil of the watch to be charged through electromagnetic induction principle, so as to charge the watch to be charged. The induction coil 22 is the coil used to sense the change of the electric field caused by the attachment of the watch to be charged to the watch charging assembly 20. The watch detection module 25 is the device used to detect the change of the electric field caused by the attachment of the watch to be charged, and transmit the change of the electric field to the mobile power supply body 10, so as to realize the instant charging of the watch to be charged. The watch detection module 25 can be arranged on the base body 21, or on the surface of the mobile power supply body 10, or in the interior of the mobile power supply body 10, and the specific arrangement is not limited.

[0041] In actual scenarios, the base body 21 can be arranged on any surface of the mobile power supply body 10, or on multiple surfaces of the mobile power supply body, and the specific arrangement is not limited. If the watch to be charged is not attached to the watch charging assembly 20, the magnetic field around the induction coil 22 is a fixed magnetic field, at this time the watch detection module 25 detects a fixed signal, and the watch detection module 25 can output a signal (for example, a low-level signal) representing that the watch to be charged is not attached to the mobile power supply body 10, or not output a signal to the mobile power supply body 10.

[0042] When the watch to be charged is attached to the watch charging assembly 20, the wireless charging coil 23 of the watch charging assembly 20 is coupled with the coil of the watch to be charged, so that the magnetic field around the induction coil 22 changes, the change of the magnetic field further causes the change of the electric field, and the watch detection module 25 detects the fluctuation of the electric field signal. The watch detection module 25 detects the change and sends the electric field change signal (which can be an electric field intensity related signal or a high level signal) to the mobile power supply body 10, so as to enable the mobile power supply body 10 to start the charging function, and the electric energy stored in the mobile power supply body 10 is transmitted to the wireless charging coil 23, and further transmitted to the watch to be charged in the form of electromagnetic induction.

[0043] Further, when the watch to be charged is separated from the watch charging assembly 20, the wireless charging coil 23 of the watch charging assembly 20 is separated from the charging coil of the watch to be charged, so that the magnetic field (or electric field) around the induction coil 22 changes to the state before charging. The watch detection module 25 can also detect the change of the electric field and send it to the mobile power supply body 10, so as to enable the mobile power supply body 10 to terminate the charging function. In this way, the charging function of the mobile power supply can be interrupted in time when the user has no charging demand, reducing the waste of electric energy, meeting the demand of immediate attachment and charging, and also meeting the demand of standby low power consumption of the mobile power supply.

[0044] The above scheme, the mobile power supply includes a mobile power supply body 10 and a watch charging assembly 20, the watch charging assembly 20 includes a base body, a wireless charging coil 23, an induction coil 22 and a watch detection module 25, the base body 21 is arranged on the surface of the mobile power supply body 10, the wireless charging coil 23 and the induction coil 22 are arranged on the base body 21, the watch detection module 25 is connected with the induction coil 22 and the mobile power supply body 10 respectively, and the wireless charging coil 23 is connected with the mobile power supply body 10. In this way, when the watch to be charged is attached to the watch charging assembly 20, the electric field of the induction coil 22 changes, and the watch detection module 25 can detect the change of the electric field of the induction coil 22 caused by the attachment of the watch to be charged, so as to enable the mobile power supply body 10 to charge the watch to be charged. Through the scheme, the watch is wirelessly charged by the mobile power supply without user intervention, realizes immediate attachment and charging, and improves the charging convenience of the mobile power supply.

[0045] In some embodiments, the base body 21 is movably arranged on the mobile power supply body 10 and can move away from or close to the mobile power supply body 10.

[0046] The base 21 is used to adjust the charging position of the watch to be charged. The base 21 is movably arranged on the power bank body 10 and can move away from the power bank body 10. In this way, the charging position of the watch to be charged can be adjusted by the movement of the base 21. It should be pointed out that the movable arrangement of the base 21 is not unique and can be rotation, sliding, etc. as long as the base 21 can move away from or close to the power bank body 10, and the specific implementation is not limited.

[0047] In order to facilitate the understanding of the technical solutions of the present application, the following embodiments can be understood as that the base 21 is movably arranged on the power bank body 10 in a rotatable manner. In this way, the wireless charging coil 23 and the induction coil 22 rotate with the base 21, so that the watch to be charged can rotate relative to the power bank body 10 during charging, which is convenient for the user to use the watch to be charged, for example, the rotation of the base 21 can facilitate the user to view the time information displayed on the watch.

[0048] Please refer to FIG. 2. In some embodiments, the base 21 includes a rotating part 220 and a support 210. The rotating part 220 is arranged on the power bank body 10, and the support 210 is connected to the rotating part 220. The wireless charging coil 23 and the induction coil 22 are arranged on the support 210.

[0049] The rotating part 220 is a component that can rotate, and the support 210 is a component for supporting the wireless charging coil 23 and the induction coil 22. In the embodiment, the base 21 includes the rotating part 220 and the support 210, which can ensure that the wireless charging coil 23 and the induction coil 22 rotate with the base 21 and also provide sufficient mounting positions for the wireless charging coil 23 and the induction coil 22.

[0050] Please refer to FIG. 3. In some embodiments, the support 210 includes a first support part 211, a second support part 212 and a cover part 213. The induction coil 22 is arranged on a first surface of the first support part 211 and is arranged along the edge of the first surface. The first surface is a surface of the first support part 211 away from the power bank body 10. The second support part 212 is arranged on the first surface and is located within the area surrounded by the induction coil 22. The cover part 213 is arranged on a second surface of the second support part 212. The second surface is a surface of the second support part 212 away from the first support part 211. The wireless charging coil 23 is embedded in the inside of the second support part 212, and the distance from the wireless charging coil 23 to the first surface is greater than the distance from the induction coil 22 to the first surface.

[0051] The scheme of the embodiment is that the induction coil 22 (which can be a copper coil or the like) is arranged around the edge of the first surface of the first supporting component 211, and the first surface is specifically the surface of the first supporting component 211 that is far away from the mobile power supply body 10. The induction coil 22 is arranged in a covering manner on the cover that is far away from the surface of the first supporting component 211, so as to avoid exposure of the induction coil 22. In the first surface of the first supporting component 211 for arranging the induction coil 22, the second supporting component 212 is arranged in the area surrounded by the induction coil 22, and the wireless charging coil 23 is embedded in the second supporting component 212. The induction coil 22 is arranged on the surface of the first supporting component 211, so that the distance of the induction coil 22 to the first surface is zero. Further, the distance of the wireless charging coil 23 to the first surface is set to be greater than the distance of the induction coil 22 to the first surface, that is, the height of the wireless charging coil 23 is greater than the height of the induction coil 22. In this way, the induction coil 22 and the wireless charging coil 23 are arranged in a spaced manner, the magnetic field of the wireless charging coil 23 is reduced to interfere with the induction coil 22, and the magnetic attraction detection accuracy of the induction device is improved.

[0052] It should be noted that the shapes of the first supporting component 211 and the second supporting component 212 are not unique. In one embodiment, the projections of the first supporting component 211 and the second supporting component 212 on the horizontal plane are circular or annular. In another embodiment, the projections of the first supporting component 211 and the second supporting component 212 on the horizontal plane can also be other regular shapes (such as a rectangle) or irregular shapes, which are not limited in particular.

[0053] Referring to FIG. 4, in some embodiments, the mobile power supply further comprises a rotation detection assembly 40 arranged in the mobile power supply body 10 and used for detecting the rotation angle of the watch charging assembly 20.

[0054] The rotation detection assembly 40 is a device used for detecting the rotation of the base body 21 of the watch charging assembly 20. According to the scheme of the present application, the rotation detection assembly 40 is arranged in the mobile power supply body 10 at a position corresponding to the watch charging assembly 20, so that the signal detected by the rotation detection assembly 40 can change along with the rotation of the watch charging assembly 20. Through this scheme, the rotation of the watch charging assembly 20 relative to the mobile power supply body 10 can be detected in time, and the operation reliability of the mobile power supply is improved.

[0055] In one embodiment, the mobile power supply further comprises a control mainboard used for controlling the output level signal of the mobile power supply body 10 based on the rotation angle of the watch charging assembly 20.

[0056] In the embodiment, the rotation detection assembly 40 and the power bank body are respectively connected to the control mainboard. After detecting the rotation of the watch charging assembly 20, the rotation detection assembly 40 sends a signal representing the rotation angle of the watch charging assembly 20 to the control mainboard. Finally, the control mainboard sends different level signals to the power bank body 10 according to the detected rotation angle, so that the power bank body 10 executes different control schemes. In the embodiment, the connection between the rotation detection assembly 40 and the power bank body 10 is established through the setting of the control mainboard, and the operation reliability of the power bank is further improved.

[0057] In one embodiment, the control mainboard is configured to output a first level signal to the power bank body 10 when the watch charging assembly 20 is detected to rotate to a set angle, and output a second level signal to the power bank body when the watch charging assembly 20 is not rotated or the rotation does not reach the set angle; the set angle is greater than 0 degrees and less than 90 degrees.

[0058] The control mainboard has a pre-stored set angle. After obtaining the rotation angle of the watch charging assembly 20, the control mainboard compares and analyzes the set angle, and outputs different level signals according to the size relationship between the rotation angle and the set angle.

[0059] In more detail, in one embodiment, to ensure that the watch to be charged can be detected in time when it rotates with the watch charging assembly 20, the set angle can be set to 9-12 degrees. The types of the first level signal and the second level signal are not unique. In one embodiment, the first level signal can be a low level signal, and the second level signal can be a high level signal.

[0060] The way in which the rotation detection assembly 40 detects whether the watch charging assembly 20 rotates to the set angle is not unique. In one embodiment, the rotation detection assembly 40 can include an angle sensor, which directly detects the rotation angle of the watch charging assembly 20.

[0061] Referring to FIG. 5, in another embodiment, the watch charging assembly 20 further includes a magnet 24 arranged on the base 21, and the rotation detection assembly 40 is a magnetic field detection rotation assembly, which is configured to determine the rotation angle of the watch charging assembly 20 according to the change of the magnetic field strength.

[0062] Through the setting of the magnet 24, the magnetic attraction charging of the watch can be realized, the charging of the watch can be avoided from being interrupted due to collision during the charging process, and the charging reliability of the watch is improved.

[0063] The magnetic field detection rotating component is also a device for determining the rotation angle according to the detected magnetic field change. In the scheme of the embodiment, the magnet 24 is arranged at the base body 21, so that the relative position between the magnet 24 and the rotation detection component 40 changes while the base body 21 rotates, which is specifically manifested as the change of the magnetic flux (or the magnetic field). In the embodiment, the rotation angle can be represented by the detected magnetic field strength. With the increase of the rotation angle, the distance between the magnet 24 and the magnetic field detection rotating component increases, the magnetic flux decreases, and the corresponding magnetic field strength also decreases. Therefore, whether the watch charging component 20 rotates to the set position can be determined by judging whether the magnetic field strength is lower than the set magnetic field strength.

[0064] In another embodiment, the rotation detection component 40 can also store the corresponding relationship between the magnetic flux change amount (or the magnetic field strength) and the rotation angle. The rotation detection component 40 only needs to match the detected magnetic flux change amount with the corresponding relationship to obtain the rotation angle of the watch charging component 20, and finally compare the rotation angle with the set angle.

[0065] Please refer to FIG. 6. In some embodiments, the rotation detection component 40 includes a magnetic induction chip U1, a first resistor R1, a first capacitor C1 and a second capacitor C2. The output end OUT of the magnetic induction chip U1 is connected to the first end of the first resistor R1, the first end of the first capacitor C1 and the mobile power supply body 10 (not shown in the figure), the second end of the first resistor R1 is connected to the power supply, the power supply end VCC of the magnetic induction chip U1 is connected to the first end of the second capacitor C2 and the power supply, and the ground end GND of the magnetic induction chip U1, the second end of the first capacitor C1 and the second end of the second capacitor C2 are grounded respectively.

[0066] The magnetic induction chip U1 is a micro sensor chip for detecting the change of the magnetic field, which can convert the change of the magnetic field into an electric signal, and generally works based on the Faraday's law of electromagnetic induction or the Hall effect, the magnetoresistance effect and other physical phenomena. In the scheme of the embodiment, the watch charging component 20 can move relative to the rotation detection component 40, so that the magnet 24 moves relative to the magnetic induction chip U1, thereby changing the magnetic field strength detected by the magnetic induction chip U1 and realizing rotation detection. The power supply end and the ground end of the magnetic induction chip U1 are used to realize the power supply operation of the magnetic induction chip U1; the first resistor R1 is used to provide an initial high level for the rotation detection component 40, so that the mobile power supply body 10 can receive a fixed signal when no rotation occurs. In the rotation detection component 40, the first capacitor C1 and the second capacitor C2 are used to filter out interference signals, so that the rotation detection component 40 works more stably.

[0067] Thus, when the watch charging assembly 20 is in the 0° state (i.e. not rotated), the magnetic induction chip U1 detects a strong magnetic field, at which time the second level signal (e.g. low level) can be output to the mobile power supply body 10 through the magnetic induction chip U1; when the watch charging assembly 20 is rotated to a set angle, the magnetic field detected by the magnetic induction chip U1 will be weaker than a certain value, at which time the first level signal (e.g. high level) can be output to the mobile power supply body 10 through the magnetic induction chip U1.

[0068] Referring to FIG. 4, in some embodiments, the mobile power supply further comprises a display screen 11, which is disposed on the same surface of the mobile power supply body 10 as the watch charging assembly 20, and is connected to the mobile power supply body 10. The display screen 11 is configured to display the content in reverse when the mobile power supply body 10 receives the first level signal.

[0069] The display screen 11 is a device in the mobile power supply body 10 for displaying parameters such as remaining power and charging and discharging power. It should be pointed out that the specific type of the display screen 11 is not unique, which can be an LED (Light-Emitting Diode) display screen 11 or an OLED (Organic Light-Emitting Diode) display screen 11, and the specific type is not limited.

[0070] In the present embodiment, the display screen 11 has the function of reverse display, and is disposed on the same surface of the mobile power supply body 10 as the watch charging assembly 20. In the normal state, i.e. when the base body 21 of the watch charging assembly 20 is not rotated, the display screen 11 displays the remaining power and the like, at which time the user can view the normally displayed content from one side of the watch charging assembly 20. When the base body 21 of the watch charging assembly 20 is rotated, the user views the display screen 11 from one side of the watch charging assembly 20, and the content displayed by the display screen 11 is partially or completely blocked due to the shielding of the watch charging assembly 20, and needs to be viewed from the opposite direction. If the display content does not change, the observed display content will be in the reverse state. Therefore, the scheme of the present application embodiment, in the case where the base body 21 of the watch charging assembly 20 is rotated, the rotation detection assembly 40 detects this state and sends a related signal to the mobile power supply body 10, under the control of the mobile power supply body 10, the display screen 11 reverses the display content, so as to facilitate the user to view, effectively improving the use convenience of the mobile power supply.

[0071] Referring to FIG. 7, in some embodiments, the watch detection module 25 comprises an electric field sensing chip U2, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a third capacitor C3, a fourth capacitor C4 and a fifth capacitor C5. The power supply pin VDD of the electric field sensing chip U2 is connected to the first end of the third capacitor C3. The first end of the third capacitor C3 is also connected to the first end of the fourth capacitor C4 and the first end of the second resistor R2. The second end of the second resistor R2 is connected to the power supply. The second end of the third capacitor C3, the second end of the fourth capacitor C4, the ground pin GND of the electric field sensing chip U2 and the first mode pin AHLB of the electric field sensing chip U2 are grounded. The second mode pin TOG of the electric field sensing chip U2 is connected to the mobile power supply body 10 (i.e. the RESET terminal shown in the figure) through the third resistor R3. The detection pin TCH of the electric field sensing chip U2 is connected to the first end of the fourth resistor R4 and the first end of the fifth capacitor C5. The second end of the fourth resistor R4 is connected to the induction coil 22. The second end of the fifth capacitor C5 is connected to the power supply ground pin of the electric field sensing chip U2. The power supply ground pin Vss of the electric field sensing chip U2 is grounded. The output pin OC of the electric field sensing chip U2 is connected to the mobile power supply body 10 through the fifth resistor R5.

[0072] The electric field sensing chip U2 is a chip based on the working principle of electric field, which can detect and respond to changes in electric field. In the scheme of the present embodiment, when the watch to be charged is attached to the watch charging assembly 20, the magnetic field around the induction coil 22 will change due to the attraction of the magnet 24 or the coupling of the charging coil. The change in the magnetic field will affect the change in the capacitance around the induction coil 22. The electric field sensing chip U2 of the watch detection module 25 senses this change through the fourth resistor R4 and the fifth capacitor C5, and transmits the sensing result to the electric field sensing chip U2. The electric field sensing chip U2 outputs an electric field change signal to the mobile power supply body 10 according to the received signal, so that the mobile power supply body 10 starts the charging operation. In the scheme of the present embodiment, the electric field sensing chip U2 and its peripheral circuit are used to build the watch detection module 25, which has high magnetic attraction detection accuracy.

[0073] Referring to FIG. 4, in some embodiments, any surface of the mobile power supply body 10 is provided with a receiving cavity 12, and the watch charging assembly 20 is arranged in the receiving cavity 12.

[0074] In the present embodiment, the receiving cavity 12 is formed on any surface of the mobile power supply body 10, and the watch charging assembly 20 is arranged in the receiving cavity 12. When there is a use demand, the watch charging assembly 20 is rotated out of the receiving cavity 12, and when there is no use demand, the watch charging assembly 20 is received in the receiving cavity 12. In this way, when there is no use demand for the watch charging assembly 20, the risk of collision of the watch charging assembly 20 is reduced, and the use safety of the mobile power supply body 10 is improved.

[0075] In some embodiments, the mobile power supply body 10 comprises a shell, a charge-discharge circuit, an energy storage element and a controller, the charge-discharge circuit, the energy storage element and the controller are arranged in the interior of the shell, the watch charging assembly 20 is arranged on any surface of the shell, the wireless charging coil 23 and the energy storage element are respectively connected to the charge-discharge circuit, and the charge-discharge circuit is connected to the controller.

[0076] The structure of the mobile power supply body 10 is not unique, which comprises a shell, the watch charging assembly 20 can be arranged on any surface of the shell, and the controller is respectively connected with the watch detection module 25, the display screen 11 or the rotation detection assembly 40. When the watch detection module 25 detects that the watch to be charged is adsorbed to the watch charging assembly 20, the controller can control the conduction connection among the charge-discharge circuit, the energy storage element and the wireless charging coil 23 according to the electric field change signal output by the watch detection module 25, so as to realize the wireless charging operation; when the rotation detection assembly 40 detects that the watch charging assembly 20 is rotated to a certain degree, the controller can control the display content of the display screen 11 to be turned over according to the signal sent by the rotation detection assembly 40.

[0077] In order to facilitate understanding of the technical scheme of the present application, the present application will be explained and described in detail in combination with the more detailed embodiments.

[0078] The mobile power supply body 10 of the present application comprises a shell, a charge-discharge circuit, an energy storage element and a controller, the watch charging assembly 20 comprises a base body 21, a wireless charging coil 23, an induction coil 22, a magnet 24 and a watch detection module 25, a containing cavity 12 is formed on one surface of the shell, the watch charging assembly 20 can be rotatably arranged in the containing cavity 12, the display screen 11 and the containing cavity 12 are arranged on the same surface of the shell, the rotation detection assembly 40 and the base body 21 are arranged on the same surface of the mobile power supply body 10, the watch detection module 25 is connected with the induction coil 22, and the magnetic induction chip U1 of the rotation detection assembly 40 is arranged at a position corresponding to the magnet 24 of the watch charging assembly 20.

[0079] First, when the user has a charging demand, the watch to be charged is attached to the watch charging assembly 20, the magnet 24 of the watch to be charged is attracted to the magnet 24 of the watch charging assembly 20, the charging coil of the watch to be charged is coupled to the wireless charging coil 23, the magnetic field around the induction coil 22 changes, the change of the magnetic field causes the change of the electric field, the fourth resistor R4 and the fifth capacitor C5 of the watch detection module 25 perceive the change, so that the electric field sensing chip U2 of the watch detection module 25 outputs an electric field change signal (which can be represented by a level signal) to the mobile power supply body 10. Then, the mobile power supply body 10 turns on the connection between the charging and discharging circuit, the energy storage element and the wireless charging coil 23, realizes wireless charging. After the watch to be charged leaves the watch charging assembly 20, the electric field around the induction coil 22 returns to the previous state, the fourth resistor R4 and the fifth capacitor C5 of the watch detection module 25 perceive the change, so that the electric field sensing chip U2 of the watch detection module 25 outputs a stop charging signal, and the controller of the mobile power supply body 10 receives the charging enable signal, then disconnects the connection between the charging and discharging circuit, the energy storage element and the wireless charging coil 23, and ends the charging operation.

[0080] When the user has the demand to rotate the watch charging assembly 20 (which can be in a charging or non-charging state), the magnetic induction chip U1 of the rotation detection assembly 40 detects the magnetic field strength in real time and compares the detected magnetic field strength with the preset magnetic field strength. When the detected magnetic field strength is greater than the preset magnetic field strength, it indicates that the watch charging assembly 20 is not rotated or not rotated to the position, at this time a second level signal is output to the controller of the mobile power supply body 10; when the detected magnetic field strength is less than or equal to the preset magnetic field strength, it indicates that the watch charging assembly 20 is rotated to the position, at this time a first level signal is output to the controller of the mobile power supply body 10. When the controller receives the first level signal, a flip signal or the display content after flipping is sent to the display screen 11, so that the display content of the display screen 11 is flipped.

[0081] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0082] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A portable power bank, comprising a portable power bank body and a watch charging component, wherein the watch charging component comprises: The substrate is movably disposed on the surface of the power bank body and can move in a direction away from or towards the power bank body. A wireless charging coil is disposed on the base, and the wireless charging coil is connected to the power bank body; An induction coil is disposed on the substrate. When the watch to be charged is in contact with the watch charging component, the electric field of the induction coil will change. as well as A watch detection module is provided, which is connected to the induction coil and the power bank body respectively; the watch detection module is used to charge the watch to be charged by the power bank body when it detects a change in the electric field of the induction coil. The base includes a rotating component and a support. The rotating component is disposed on the power bank body, and the support is connected to the rotating component. The wireless charging coil and the induction coil are respectively disposed on the support.

2. The portable power bank according to claim 1, wherein, The substrate is rotatably and movably mounted on the mobile power supply body.

3. The portable power bank according to claim 1, wherein, The induction coil and the wireless charging coil are spaced apart to reduce the interference of the magnetic field of the wireless charging coil on the induction coil.

4. The portable power bank according to claim 1, wherein, The bracket includes a first support component, a cover, and a second support component. The first support component is connected to the rotating component. The induction coil is disposed on a first surface of the first support component and along the edge of the first surface, which is the surface of the first support component away from the power bank body. The second support component is disposed on the first surface and located within the area formed by the induction coil. The cover is disposed on a second surface of the second support component, which is the surface of the second support component away from the first support component. The wireless charging coil is embedded inside the second support component, and the distance from the wireless charging coil to the first surface is greater than the distance from the induction coil to the first surface.

5. The portable power bank according to claim 4, wherein, The projections of the first and second support components on the horizontal plane are circular or annular.

6. The portable power bank according to claim 2, wherein, The power bank also includes a rotation detection component, which is disposed on the power bank body and is used to detect the rotation angle of the watch charging component.

7. The portable power bank according to claim 6, wherein, The power bank also includes a control motherboard, which controls the output level signal of the power bank body based on the rotation angle of the watch charging component.

8. The portable power bank according to claim 7, wherein, The control motherboard is used to output a first level signal to the power bank body when the watch charging component rotates to a set angle, and to output a second level signal to the power bank body when the watch charging component does not rotate or does not rotate to the set angle; the set angle is greater than 0 degrees and less than 90 degrees.

9. The portable power bank according to claim 6, wherein, The watch charging component also includes a magnet disposed on the base, and the rotation detection component is a magnetic field detection rotation component, which is used to determine the rotation angle of the watch charging component based on the change in magnetic field strength.

10. The portable power bank according to claim 9, wherein, The magnetic field detection rotating component is also used to match the detected change in magnetic flux with the stored correspondence between the change in magnetic flux and the rotation angle to determine the rotation angle of the watch charging component.

11. The portable power bank according to claim 9, wherein, The magnetic field detection rotating component includes a magnetic induction chip, a first resistor, a first capacitor, and a second capacitor. The output terminal of the magnetic induction chip is connected to the first terminal of the first resistor, the first terminal of the first capacitor, and the mobile power supply body. The second terminal of the first resistor is connected to the power supply. The power supply terminal of the magnetic induction chip is connected to the first terminal of the second capacitor and the power supply. The ground terminal of the magnetic induction chip, the second terminal of the first capacitor, and the second terminal of the second capacitor are respectively grounded.

12. The portable power bank according to claim 8, wherein, The power bank also includes a display screen, which is disposed on the same surface as the watch charging component. The display screen is connected to the power bank body and is used to flip and display content when the power bank body receives the first level signal.

13. The portable power bank according to any one of claims 1-12, wherein, The watch detection module includes an electric field sensing chip, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a third capacitor, a fourth capacitor, and a fifth capacitor. The power supply pin of the electric field sensing chip is connected to the first terminal of the third capacitor. The first terminal of the third capacitor is also connected to the first terminal of the fourth capacitor and the first terminal of the second resistor. The second terminal of the second resistor is connected to the power supply. The second terminals of the third and fourth capacitors, the ground pin of the electric field sensing chip, and the first mode pin of the electric field sensing chip are respectively grounded. The second mode pin of the electric field sensing chip is connected to the power bank body through the third resistor. The detection pin of the electric field sensing chip is connected to the first terminal of the fourth resistor and the first terminal of the fifth capacitor. The second terminal of the fourth resistor is connected to the induction coil. The second terminal of the fifth capacitor is connected to the power ground pin of the electric field sensing chip. The power ground pin of the electric field sensing chip is grounded. The output pin of the electric field sensing chip is connected to the power bank body through the fifth resistor.

14. The portable power bank according to any one of claims 1-12, wherein, The surface of the power bank body has a receiving cavity, and the charging component is disposed in the receiving cavity.

15. The portable power bank according to any one of claims 1-12, wherein, The power bank body includes a housing, a charging and discharging circuit, an energy storage element, and a controller. The charging and discharging circuit, the energy storage element, and the controller are disposed inside the housing. The watch charging component is disposed in the housing. The wireless charging coil and the energy storage element are respectively connected to the charging and discharging circuit, and the charging and discharging circuit is connected to the controller.

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