Mobile phone-attachable coupling device supporting wireless charging

Abstract

Disclosed is a mobile phone-attachable coupling device comprising a gripping device that wirelessly charges a mobile phone by receiving power through a stand. The mobile phone-attachable coupling device according to an embodiment of the present invention comprises: a gripping device provided with a coil, for wireless charging, at the bottom which attaches to a mobile phone or mobile phone case; and a stand comprising a holding part provided with a recess into which a part of the gripping device is inserted, and with a pair of pins for supplying power to the coil.

Description

Detachable mobile phone connector that supports wireless charging

[0001] The invention relates to a detachable mobile phone coupling device comprising a grip device that receives power through a stand and performs wireless charging of the mobile phone.

[0002] Wireless charging technology for mobile phones transmits power based on the principle of electromagnetic induction, generating an electric current through the interaction between the charging pad and the coil inside the mobile phone. When current flows through the charging pad, a magnetic field is generated, and the mobile phone's coil receives this magnetic field and converts it into electrical energy to charge the battery. Wireless charging technology is convenient as it does not require a physical connection, and it has the advantages of preventing damage to the charging port and maintaining water and dust resistance.

[0003] However, wireless charging technology requires a short physical distance between the charging pad and the mobile phone's coil for efficient charging. Consequently, if accessories such as a grip are attached to the mobile phone, the distance between the charging pad and the coil increases, weakening electromagnetic induction. This can lead to a significant decrease in charging efficiency or even make charging impossible.

[0004] The purpose is to provide a detachable mobile phone coupling device that includes a grip device that performs wireless charging of a mobile phone by receiving power through a stand.

[0005] According to one aspect, a detachable mobile phone coupling device may include a grip device having a coil for wireless charging at a lower portion attached to a mobile phone or a mobile phone case; and a mounting member having a groove into which a part of the grip device is inserted, and a pin comprising a pair of pins that supply power to the coil.

[0006] The grip device further includes a bellows-shaped elastic part installed between the upper part of the lower portion and the lower part of the upper portion, and an upper portion installed at the upper part of the elastic part, and the upper portion and the elastic part can be inserted into a groove provided in the mounting portion.

[0007] The bottom portion may include a first magnet for attaching to a mobile phone or mobile phone case.

[0008] The lower part may include a pair of contact pads for electrical connection between the pin of the mounting part and the coil.

[0009] A pair of contact pads can be formed into a circular ring.

[0010] The mounting bracket includes a base portion that supports the mounting bracket and a connecting portion that connects the base portion and the mounting bracket, and the base portion may include a terminal for supplying power to a pin of the mounting bracket.

[0011] One side of the mounting portion is coupled with the connecting portion, and the other side has a protruding edge formed to provide a side wall, and can be formed as a cylindrical shape with a groove in the center.

[0012] The pin of the mounting part may be provided on the upper or inner side of the side wall.

[0013] The mounting portion includes a second magnet inside the groove, and the upper portion may include a metal plate that is coupled with the magnet included in the groove inside.

[0014] The strength of the first magnet can be stronger than the strength of the second magnet.

[0015] The mounting part may include a switch that controls the power supplied to the pin.

[0016] The switch is formed as a protrusion in the groove or side wall of the mounting part, and the switch is connected when the gripping device is coupled, and the switch can be disconnected when the gripping device is separated.

[0017] The switch is provided between the groove of the mounting portion and the second magnet, and when the second magnet and the metal plate are coupled by magnetic force, the second magnet moves in the direction of the metal plate to connect the switch, and when the second magnet and the metal plate are separated, the second magnet moves to its initial position and the switch can be disconnected.

[0018] The mounting unit is equipped with one or more lights, and one or more lights can be turned on when the switch is connected.

[0019] One or more lights may have different colors depending on the charging and charging complete status.

[0020] By performing wireless charging through the grip device, it is possible to perform wireless charging without detaching the grip device.

[0021] FIG. 1 is a configuration diagram of a detachable coupling device for a mobile phone according to one embodiment.

[0022] FIGS. 2 and FIGS. 3 are illustrative diagrams for explaining the configuration of a grip device according to one embodiment.

[0023] FIG. 4 is an illustrative diagram for explaining the configuration of a stand according to one embodiment.

[0024] Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings. In describing the present invention, specific descriptions of related known functions or configurations will be omitted if it is determined that such detailed descriptions may unnecessarily obscure the essence of the present invention. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intentions or conventions of the user or operator. Therefore, their definitions should be based on the content throughout this specification.

[0025] Hereinafter, embodiments of a detachable mobile phone coupling device and method will be described in detail with reference to the drawings.

[0026] FIG. 1 is a configuration diagram of a detachable coupling device for a mobile phone according to one embodiment.

[0027] According to one embodiment, the mobile phone detachable coupling device (10) may include a grip device (100) having a coil for wireless charging at a lower portion (110) attached to a mobile phone or mobile phone case, and a mounting portion (210) having a groove (211) into which a part of the grip device (100) is inserted, and a mounting portion (210) including a pin (215) configured as a pair to supply power to the coil.

[0028] For example, the grip device (100) includes a coil for wireless charging and a contact pad for electrical connection, and the contact pad is composed of two circular rings so that power can be stably transmitted even when mounted at various angles. The stand (200) may include a groove into which a part of the grip device is inserted and a pin that supplies power to the wireless charging coil. For example, power from an external power source is input to the stand terminal, and power can be transmitted in the order of the stand, the mounting pin, the contact pad, and the coil. Accordingly, the user can wirelessly charge the mobile phone without removing the grip device while the phone is mounted.

[0029] According to one embodiment, the grip device (100) may further include a bellows-shaped expandable portion (120) installed between the top of the lower portion (110) and the bottom of the upper portion (130), and an upper portion (130) installed at the top of the expandable portion (120). Through this, the grip device (100) can be folded and unfolded in a folded shape through the bellows-shaped expandable portion (120).

[0030] According to one example, the upper portion (130) and the extendable portion (120) can be inserted into a groove (211) provided in the mounting portion (210). For example, the diameter of the groove (211) is larger than the diameter of the upper portion (130) or the extendable portion (120), and the depth can be deeper than the sum of the lengths of the upper portion (130) and the extendable portion (120) when the extendable portion (120) is folded. Through this, the upper portion (130) and the extendable portion (120) can be inserted into the groove (211), and the side wall (213) of the mounting portion (210) can come into contact with the lower portion (110).

[0031] FIGS. 2 and FIGS. 3 are illustrative diagrams for explaining the configuration of a grip device according to one embodiment.

[0032] According to one embodiment, the lower portion (110) may include a first magnet for attaching to a mobile phone or a mobile phone case.

[0033] Referring to FIG. 2(a), the interior of the lower portion (110) may include a first magnet (113) for attachment to a mobile phone or mobile phone case. The first magnet (113) has a circularly arranged structure and can be precisely coupled to the mobile phone or case through magnetic attraction. Through this, the first magnet (1130) supports the function of providing strong fixing force at a specific position while being easily detachable when needed. This method allows the mobile phone and the accessory to be precisely aligned by a magnetic field, thereby supporting stable coupling and expandability such as additional charging functions.

[0034] According to one example, the bottom portion (110) may include a coil (111) for wireless charging. For example, the coil (111) transmits power using an electromagnetic induction method and may have a structure arranged inside the bottom portion in a spiral shape or with two circular metal plates of different diameters. In this case, the two circular metal plates of different diameters may be connected as a positive pole and a negative pole, respectively. The coil (111) is mainly made of copper wire and is designed to maximize charging efficiency through high conductivity. Additionally, a shield composed of magnetic material may be placed around the coil (111) to prevent electromagnetic interference (EMI) and improve electromagnetic induction efficiency.

[0035] The coil (111) operates according to a wireless charging standard (such as the Qi standard) and delivers power when aligned with a stand or charging pad. In particular, through a structure combined with a magnet, it assists in ensuring that the coil and the charging pad are accurately aligned and can reliably transmit power.

[0036] FIG. 3(a) shows the detailed configuration of the lower part (110). The interior of the lower part (110) may include a first magnet (113) and a coil (111) for wireless charging. The first magnet (113) is arranged in a circular shape and can perform positional alignment and fixation through magnetic coupling with a metal contact part. The coil (111) provides a wireless charging function and can perform the role of transmitting power through electromagnetic induction.

[0037] Contact pads (115a, 115b) may be formed in a circular ring shape on the upper surface of the lower part (110). These contact pads can supply power to the coil through an electrical connection with a power transmission pin. The contact pads (115) can maintain a stable contact state at various angles through a fixed position and surface treatment.

[0038] FIG. 3(b) shows an example in which contact pads (115a, 115b) are provided on the side of the bottom portion. The contact pads are formed along the side of the bottom portion in the shape of a circular ring, and this positioning enables stable contact with the power transmission pin. Through this, the contact pads located on the side can maintain contact with the pin even when the bottom portion is mounted at various angles.

[0039] Embodiments of the present invention are not limited to the form shown in FIG. 3(a) and FIG. 3(b), and one of the contact pads may be provided on the upper surface and the other on the side.

[0040] In this case, the power transmission pins contacting from the side and the power transmission pins contacting from the top surface hold the gripping device in the vertical direction, thereby enabling a stable connection with the stand.

[0041] According to one embodiment, the lower portion (110) may include a pair of contact pads (115a, 115b) for electrical connection between the pin of the mounting portion (111) and the coil. Referring to FIG. 2(b), the pair of contact pads may be formed in the shape of a circular ring and provided on one side of the lower portion (110), and each contact pad may operate as a positive pole and a negative pole. The contact pads formed as circular rings may be arranged at a constant distance from each other vertically. This structure can maintain a contact state even when mounted at various angles and helps the pin of the mounting portion (111) to make precise contact with the contact pad, thereby enabling stable power supply. The circular ring shape facilitates alignment during the mounting process and allows for a connection that does not break the electrical connection even with rotation and minute positional changes during mounting.

[0042] For example, the contact pad may be designed to be positioned approximately 0.5T to 0.8T inward from the surface of the bottom portion (110). For example, if the contact pad is aligned with the surface of the bottom portion (110), it is aesthetically pleasing, but it is difficult to achieve this during the production process. Accordingly, the contact pad (115) may be provided to maintain an appropriate depth from the surface of the bottom portion (110). For example, the contact pad may be positioned on the front or side of the bottom portion (113).

[0043] According to one example, the weight of the grip device (100) is designed not to exceed 25g, and the light weight can increase user convenience. The extension part (120) may be made of an elastomer, which is an elastic material, and through a flexible structure, it can be adjusted to various angles from 0 to 45 degrees, allowing the user to use the mobile phone at a convenient angle.

[0044] FIG. 4 is an illustrative diagram for explaining the configuration of a stand according to one embodiment.

[0045] According to one embodiment, the stand (200) may include a support portion (220) that supports the stand, and a connecting portion (230) that connects the support portion (220) and the stand portion (210). At this time, the support portion (220) may include a terminal (not shown) for supplying power to the pin (215) of the stand portion. For example, the terminal may be a USB Type C terminal.

[0046] According to one embodiment, the mounting portion (210) may be formed as a cylinder having one side coupled to the connecting portion (230), the other side having a protruding edge formed to form a side wall (310), and a groove (211) in the center. Through this, when the upper portion (130) and the extendable portion (120) are inserted into the groove (211) provided in the mounting portion (210), the side wall (213) of the mounting portion (210) may come into contact with the lower portion (110).

[0047] According to one embodiment, the pin (215) of the mounting portion may be provided on the upper or inner surface of the side wall (213). For example, the pin may be a pogo pin. Referring to FIG. 4(b), the pin (215a) may be provided on the upper surface of the side wall (213). In this case, as in FIG. 3(a), it may correspond to a structure in which contact pads (115a, 115b) are provided on the surface of the lower portion (110), and the pin (215a) provided on the upper surface of the side wall (213) may be electrically connected by contacting the contact pads (115a, 115b) provided on the surface of the lower portion (110).

[0048] As another example, the pin (215b) may be provided on the inner side of the side wall (213). In this case, as in FIG. 3(b), it may correspond to a structure in which contact pads (115a, 115b) are provided on the side of the lower part (110), and the pin (215b) provided on the inner side of the side wall (213) may be electrically connected by contacting the contact pads (115a, 115b) provided on the side of the lower part (110).

[0049] According to one embodiment, the mounting portion (210) may include a second magnet (217) inside the groove. At this time, the upper portion (130) of the gripping device may include a metal plate (not shown) that is coupled with the magnet included in the groove inside.

[0050] Through this, the mounting portion (210) can be magnetically coupled to the upper portion (130) of the grip device (100) using a second magnet (217) included in an internal groove. A metal plate (not shown) that interacts with the second magnet (217) of the mounting portion (210) is included inside the upper portion (130) of the grip device, so that the grip device (100) and the mounting portion (210) can be stably coupled by the magnetic attraction between the magnet and the metal plate. This structure provides a strong coupling force without physical fixing elements and allows the grip device to be easily mounted or detached from the mounting bracket.

[0051] According to one embodiment, the strength of the first magnet may be stronger than the strength of the second magnet. The first magnet is a magnet for the grip device (100) to be coupled with a mobile phone, and the second magnet is a magnet for the grip device (100) to be coupled with a stand (200). The reason the strength of the first magnet is designed to be stronger than the strength of the second magnet is to prevent problems that may occur when the mobile phone is detached from the stand. If the strength of the first magnet is weak, the first magnet may not properly hold the mobile phone when the mobile phone is removed from the stand, and as a result, a problem may occur where the grip device (100) is detached from the mobile phone. To prevent this, by setting the strength of the first magnet to be stronger than the second magnet, the grip device can maintain a stable state of being coupled to the mobile phone even during the process of the mobile phone being detached from the stand.

[0052] According to one embodiment, the mounting portion (210) may include a switch that controls the power supplied to the pin. This is to prevent the possibility of problems such as electric shock or short circuits occurring due to the structure in which the pin protrudes outward. Although the power supplied to the pin is relatively small and may not cause significant harm to the human body, if a short circuit occurs due to external objects or environmental factors, or if such a situation is repeated, there is a possibility that the internal circuit of the device or the pin itself will be overloaded, thereby shortening the lifespan of the device.

[0053] To prevent this, a switch may be included in the mounting portion (210) and designed to supply power only when the pin is accurately coupled with the gripping device. This switch cuts off power when not coupled, thereby reducing the risk of electric shock and short circuits caused by external contact, and simultaneously ensuring the efficiency and safety of power transmission.

[0054] For example, the switch (219b) is formed protruding from the groove or side wall of the mounting part (210), and the switch is connected when the gripping device is coupled, and the switch can be disconnected when the gripping device is separated. Referring to FIG. 4(b), the switch (219b) can be formed in a protruding shape inside the groove (211) of the mounting part (210) or on the side wall (213), and can operate according to the operation of the gripping device (100) being coupled to or separated from the mounting part (210). For example, when the gripping device (100) is coupled to the mounting part (210), the switch (219b) is pressed or contacted to establish an electrical connection, and power can be supplied through the pin. Conversely, when the gripping device (100) is separated, the switch (219b) returns to its original position and the electrical connection can be disconnected.

[0055] This structure ensures that power is supplied only when the gripping device (100) is precisely coupled with the mounting part (210), and in other conditions, it blocks the flow of current to prevent the risk of electric shock or short circuit.

[0056] According to one embodiment, a switch (219a) is provided between the groove (211) of the mounting portion and the second magnet (217), and when the second magnet (217) and the metal plate are coupled by magnetic force, the second magnet (217) moves in the direction of the metal plate to connect the switch, and when the second magnet (217) and the metal plate are separated, the second magnet moves to its initial position and the switch can be disconnected.

[0057] The switch (219a) is positioned between the groove (211) of the mounting portion and the second magnet (217) and can operate according to the magnetic interaction between the second magnet (217) and the metal plate. For example, when the second magnet (217) and the metal plate are magnetically coupled, the second magnet (217) moves toward the metal plate and presses the switch (219a), thereby establishing an electrical connection. Conversely, when the second magnet (217) and the metal plate lose their magnetic coupling and separate, the second magnet (217) returns to its initial position, and contact with the switch (219a) is released. As a result, the switch is disconnected, the electrical connection is cut off, and the external circuit or power supply may be stopped.

[0058] According to one embodiment, the mounting portion (210) is equipped with one or more lights (not shown), and one or more lights may be turned on when a switch is connected. At this time, the color of one or more lights may change depending on the charging state and the charging complete state.

[0059] For example, the mounting unit (210) includes one or more lights, and when the switch is connected, the lights turn on to visually inform the user of the current status. These lights change to various colors depending on the charging status, allowing the user to intuitively check whether the charging is in progress or the charging is complete. Specifically, during charging, the lights are displayed in red or orange to indicate that charging is in progress, and when charging is complete, the lights turn green to indicate a fully charged state. Additionally, if the grip device (100) is not properly connected to the mounting unit (210) or if a problem occurs, the lights are displayed in blinking blue or white to warn the user of the connection error or the inability to charge.

[0060] For example, the mounting portion (210) may be made of a flexible elastomer material to prevent damage to the grip device (100), and may have a structure with adjustable thickness to maintain the grip device firmly attached to the mobile phone when the mobile phone is removed. Additionally, the surface of the mounting portion (210) may be formed in a rough shape to facilitate the attachment and detachment of the mobile phone.

[0061] The present invention has been described above focusing on its preferred embodiments. Those skilled in the art will understand that the present invention may be implemented in modified forms without departing from the essential characteristics of the invention. Accordingly, the scope of the present invention should not be limited to the aforementioned embodiments but should be interpreted to include various embodiments within the scope equivalent to those described in the claims.

Claims

1. A grip device having a coil for wireless charging at the bottom portion attached to a mobile phone or mobile phone case; and A detachable mobile phone coupling device comprising a mounting bracket including a mounting portion having a groove into which a part of the above-mentioned grip device is inserted, and a pin comprising a pair of pins that supply power to the coil.

2. In Paragraph 1, The above grip device is It further includes a bellows-shaped expandable section installed between the upper end of the lower section and the lower end of the upper section, and an upper section installed at the upper end of the expandable section. A detachable mobile phone coupling device in which the upper portion and the elastic portion are inserted into a groove provided in the mounting portion.

3. In Paragraph 2, The lower part above A detachable mobile phone coupling device comprising a first magnet for attaching to a mobile phone or a mobile phone case.

4. In Paragraph 3, The lower part above A detachable mobile phone coupling device comprising a pair of contact pads for electrical connection between the pin of the mounting portion and the coil.

5. In Paragraph 4, The above pair of contact pads is a detachable mobile phone coupling device formed as a circular ring.

6. In Paragraph 5, The above stand It includes a base portion supporting a mounting bracket, and a connecting portion connecting the base portion and the mounting portion, A detachable mobile phone coupling device comprising a terminal for supplying power to a pin of the mounting portion, wherein the above-mentioned support portion includes a terminal.

7. In Paragraph 6, The above mounting part One side is joined to the above-mentioned connecting part, and A detachable mobile phone coupling device having a side wall formed by a protruding edge and a groove in the center, formed as a cylindrical shape.

8. In Paragraph 7, A detachable mobile phone coupling device in which the pin of the above-mentioned mounting portion is provided on the upper or inner surface of the above-mentioned side wall.

9. In Paragraph 7, The above mounting part The above-mentioned groove includes a second magnet inside, and A detachable mobile phone coupling device, wherein the upper portion includes a metal plate that is coupled to a magnet included in the groove inside.

10. In Paragraph 9, A detachable mobile phone coupling device in which the strength of the first magnet is stronger than the strength of the second magnet.

11. In Paragraph 9, The above mounting part A detachable mobile phone coupling device comprising a switch for controlling power supplied to the above pin.

12. In Paragraph 11, The above switch is It is formed protrudingly in the groove or side wall of the above-mentioned mounting part, and A detachable mobile phone coupling device in which a switch is connected when the above-mentioned grip device is coupled, and the switch is disconnected when the above-mentioned grip device is separated.

13. In Paragraph 11, The above switch is It is provided between the groove of the above-mentioned mounting part and the second magnet, and When the second magnet and the metal plate are coupled by magnetic force, the second magnet moves in the direction of the metal plate to connect the switch, A detachable mobile phone coupling device in which, when the second magnet and the metal plate are separated, the second magnet moves to its initial position and the switch is disconnected.

14. In Paragraph 11, The above mounting part Equipped with one or more lights, A detachable mobile phone coupling device in which one or more lights are turned on when the above switch is connected.

15. In Paragraph 14, The above one or more lights are A detachable mobile phone coupling device with different colors depending on the charging and charging completion status.

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