Mobile device lighting apparatus and mobile device

Abstract

A mobile device lighting device and a mobile device are provided. The mobile device lighting device includes a light emitting portion, a light emitting driver configured to drive the light emitting portion, a power transmitter configured to convert pre-converted power into wirelessly transmitted power, and a wireless power transmission coil portion configured to receive the wirelessly transmitted power from the power transmitter.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2025-0011080, filed with the Korean Intellectual Property Office on January 24, 2025, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to a mobile device lighting device and a mobile device. Background Technology

[0004] Typically, mobile devices such as vehicles can include lighting devices to enhance the visual visibility of their surroundings. For example, lighting devices can be implemented as headlights, fog lights, turn signals, brake lights, taillights, etc.

[0005] The lighting device can be operated by receiving power from a mobile device, and the mobile device can control the on / off state of the lighting device. For this purpose, the lighting device may need to have a structure for receiving power and control signals from the mobile device to emit light (e.g., a wired connection structure).

[0006] In recent years, the structure of lighting fixtures can be designed in various ways depending on the type or model of the mobile device, and increasingly higher performance requirements are needed (e.g., increased freedom of shape, reduced size, or reduced power consumption). Therefore, the difficulty in implementing (or ensuring) wire connection structures may gradually increase, and wire connection structures may become a limitation to improving the performance of lighting fixtures. Summary of the Invention

[0007] In mobile device lighting devices and mobile devices according to exemplary embodiments of the present disclosure, the wire connection structures for light emission can be omitted or reduced, thereby increasing design freedom, or the mobile device lighting devices and mobile devices can advantageously achieve reduced size (and / or cost).

[0008] According to one aspect of this disclosure, a mobile device lighting device is provided, the mobile device lighting device comprising: a light-emitting part; a light-emitting driver configured to drive the light-emitting part; a power transmitter configured to convert pre-converted power into wireless power transmission power; and a wireless power transmission coil configured to receive wireless power transmission power from the power transmitter.

[0009] For example, the wireless power transmission coil section can be configured to output a magnetic field in a direction different from the light emission direction of the light-emitting section.

[0010] For example, the light-emitting part may have one surface that outputs light. The other surface of the light-emitting part may surround the light-emitting driver, the power transmitter, and the wireless power transmission coil. The wireless power transmission coil may be disposed at one edge of the other surface of the light-emitting part to output a magnetic field in a direction not parallel to the light emission direction of one edge of the light-emitting part.

[0011] For example, the wireless power transmission coil section may include: a wireless power transmission coil configured to output a magnetic field; and a mounting member configured to overlap with the wireless power transmission coil in the magnetic field output direction of the wireless power transmission coil, the mounting member having a mounting support on one surface of the mounting member.

[0012] For example, the mounting support may protrude beyond the edge of the mounting space on one surface of the mounting member, and the mounting support may be configured to cover the edge of the mounting space.

[0013] For example, the wireless power transmission coil can be embedded in the mounting component. The leads of the wireless power transmission coil can extend from the inside of the mounting component to the outside of the mounting component.

[0014] For example, the mobile device lighting device may further include: a mobile device connector configured to receive a first control signal and pre-converted power from the mobile device. A light-emitting driver may be configured to drive the light-emitting portion based on the first control signal.

[0015] For example, the mobile device connector can be configured to further receive a second control signal from the mobile device. The wireless power transmission coil section can be configured to output a magnetic field for transmitting the second control signal.

[0016] For example, the power transmitter can be configured to modulate the power transmitted wirelessly by at least one of the amplitude, frequency, and phase corresponding to the second control signal, such that the wireless power transmission coil section transmits the power transmitted wirelessly and the second control signal together.

[0017] For example, the power transmitter can be configured to sense the load of the wireless power transmission coil section, select one of a wireless charging control mode and a wireless light emission control mode based on the load sensing result, and determine whether to transmit a second control signal through the wireless power transmission coil section according to the mode selection.

[0018] For example, the power transmitter can be configured to sense the load of the wireless power transmission coil section, select one of a wireless charging control mode and a wireless light emission control mode based on the load sensing result, and convert the pre-converted power into wireless power transmission power according to a preset specification corresponding to the selected mode.

[0019] According to another aspect of this disclosure, a mobile device lighting device is provided, comprising: a wireless power receiving coil configured to receive power and control signals via wireless power transmission; a power receiver configured to receive power from the wireless power receiving coil and convert the power into converted power; a light-emitting unit configured to emit light based on the power converted by the power receiver; and a light-emitting driver configured to drive the light-emitting unit based on the control signals.

[0020] For example, the wireless power receiving coil section can be configured to receive power and control signals in a direction that is not parallel to the light emission direction of the light-emitting section.

[0021] For example, a power receiver can be configured to detect at least one of the amplitude, frequency, and phase of the power received by the wireless power receiving coil section in order to receive a control signal.

[0022] For example, a power receiver can be configured to modulate the load of the wireless power receiving coil in response to power received from the wireless power receiving coil.

[0023] According to another aspect of this disclosure, a mobile device is provided, comprising: a fixed component including a primary mobile device lighting device; and a movable component including a secondary mobile device lighting device. The primary mobile device lighting device may include: a power transmitter configured to convert pre-converted power into wirelessly transmitted power; and a wireless power transmission coil configured to receive wirelessly transmitted power from the power transmitter. The secondary mobile device lighting device may include: a wireless power receiving coil magnetically coupled to the wireless power transmission coil to receive wirelessly transmitted power; and a power receiver configured to receive wirelessly transmitted power from the wireless power receiving coil and convert the wirelessly transmitted power into converted power.

[0024] For example, the mobile device may include a controller configured to output a first control signal and a second control signal to a primary mobile device lighting device. The primary mobile device lighting device may further include a mobile device connector configured to receive the first and second control signals. A wireless power transmission coil may be configured to transmit the second control signal to a wireless power receiving coil.

[0025] For example, the power transmitter can be configured to modulate the wireless power transmission power by at least one of the amplitude, frequency, and phase corresponding to the second control signal, such that the wireless power transmission coil transmits the wireless power transmission power and the second control signal together. The power receiver can be configured to detect at least one of the amplitude, frequency, and phase of the wireless power transmission power to receive the second control signal.

[0026] For example, the power receiver can be configured to modulate the load of the wireless power receiving coil in response to the power transmitted wirelessly received from the wireless power receiving coil. The power transmitter can be configured to sense the load of the wireless power transmission coil, select one of a wireless charging control mode and a wireless light emission control mode based on the load sensing result, determine whether to transmit a second control signal through the wireless power transmission coil according to the mode selection, and convert the pre-converted power into wireless power transmission power according to a preset specification corresponding to the selected mode.

[0027] For example, a primary mobile device lighting device can be configured to output light to the rear of the mobile device. A movable component can move to determine whether the internal space of the mobile device is opened. A wireless power receiving coil can be configured such that whether the wireless power receiving coil is magnetically coupled to the wireless power transmitting coil changes according to the movement of the movable component. Attached Figure Description

[0028] The above and other aspects, features and advantages of this disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0029] Figure 1 This is a perspective view of a mobile device lighting device and a mobile device according to an exemplary embodiment of the present disclosure;

[0030] Figure 2 This is a perspective view of a primary mobile device lighting device and a secondary mobile device lighting device according to exemplary embodiments of the present disclosure;

[0031] Figure 3 yes Figure 2 Enlarged perspective view of the wireless power transmission coil section and the wireless power receiving coil section in the middle;

[0032] Figure 4 This is a block diagram of wireless power transmission between a primary mobile device lighting device and a secondary mobile device lighting device according to an exemplary embodiment of the present disclosure;

[0033] Figure 5 This is a block diagram of a primary mobile device lighting device charging a portable terminal according to an exemplary embodiment of the present disclosure;

[0034] Figure 6 This is a graph of signal modulation of a mobile device lighting device according to an exemplary embodiment of the present disclosure;

[0035] Figure 7 This is a perspective view of a primary mobile device lighting device charging a portable terminal according to an exemplary embodiment of the present disclosure;

[0036] Figure 8This is a perspective view of a primary mobile device lighting device according to an exemplary embodiment of the present disclosure;

[0037] Figure 9 This is a diagram of the wireless power transmission coil section of a mobile device lighting apparatus according to an exemplary embodiment of the present disclosure, viewed in the vertical direction.

[0038] Figure 10 This is a diagram of the wireless power transmission coil section of a mobile device lighting apparatus according to an example embodiment of the present disclosure, viewed in the front-rear direction.

[0039] Figure 11 This is a process diagram of a method for manufacturing a wireless power transmission coil (and / or wireless power receiving coil) of a mobile device lighting apparatus according to an example embodiment of the present disclosure;

[0040] Figure 12 This is a flowchart of a control method for a (primary) mobile device lighting device according to an exemplary embodiment of this disclosure; and

[0041] Figure 13 This is a flowchart of a control method for a (secondary) mobile device lighting device according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0042] Various modifications can be made to the example embodiments. Here, the example embodiments should not be construed as limiting to this disclosure, but should be understood to include all modifications, equivalents and substitutions within the concept and technical scope of this disclosure.

[0043] In this document, terms such as first, second, A, B, (a), (b), etc., may be used to describe components. Each of these terms is not intended to define the nature, order, or sequence of the corresponding component, but only to distinguish the corresponding component from other components. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component. The term "and / or" may include a combination of multiple related described items or any one of multiple related described items.

[0044] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the exemplary embodiments. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well. As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more of the associated listed items. It will be further understood that, when used in this disclosure, the terms “comprising” and / or “including” specify the presence of the said feature, integer, action, operation, element, component, or combination thereof, but do not exclude the presence or addition of one or more other features, integers, actions, operations, elements, components, and / or groups thereof.

[0045] Unless otherwise defined herein, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art. Unless otherwise defined herein, terms as defined in commonly used dictionaries shall be interpreted as having a meaning matching the contextual meaning in the relevant field, and shall not be interpreted as having an idealized or overly formal meaning.

[0046] As used herein, a vehicle (including electric vehicles) means any vehicle that transports objects such as people, animals, or other objects from a point of origin to a destination. Such vehicles are not limited to those that travel on roads or tracks.

[0047] In the following, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings.

[0048] Reference Figure 1 and Figure 2 According to an example embodiment of the present disclosure, a mobile device MV may include: a fixed component MV1, including a (primary) mobile device lighting device 100; and a moving component MV2, including a (secondary) mobile device lighting device 200.

[0049] For example, a mobile device MV can be a vehicle, but a mobile device MV is not limited to an airborne mobile device that moves in the air or a mobile device that moves in other types of space (e.g., underground or underwater).

[0050] For example, the (primary) mobile device lighting device 100 may be configured to output light to the rear of the mobile device MV (e.g., at the taillight position of a vehicle), but this disclosure is not limited thereto. The rear of the mobile device MV may refer to a direction opposite to the main direction of movement of the mobile device MV. For example, the fixed component MV1 may be included in at least one of the vehicle body frame, side panels, and front end module (FEM), but this disclosure is not limited thereto.

[0051] The movable component MV2 can be moved to determine whether to open the interior space of the mobile device MV (e.g., the trunk or front trunk). For example, the movable component MV2 may be included in one of the vehicle's tailgate, hood, and door, but this disclosure is not limited thereto.

[0052] In the mobile device MV according to an example embodiment of the present disclosure, a stable power (and / or control signal) transmission path to the mobile component MV2 can be ensured even when the mobile component MV2 is moving. For example, when the transmission path is implemented with a wire connection structure, the wire connection structure may be implemented inefficiently (and / or unstablely), or may restrict the movement of the mobile component MV2, considering the movement of the mobile component MV2. In the mobile device MV according to an example embodiment of the present disclosure, a stable power (and / or control signal) transmission path to the mobile component MV2 can be ensured even when the wire connection structure is omitted or reduced.

[0053] Reference Figure 2 The (primary and secondary) mobile device lighting devices 100 and 200 according to exemplary embodiments of this disclosure may include light-emitting portions 110 and 210 and / or light-emitting drivers 120 and 220. According to their design, the (primary and secondary) mobile device lighting devices 100 and 200 may further include at least one of the following: connection units 160 and 260 for connecting the mobile device lighting devices 100 and 200 to a mobile device MV; an assembly support unit 170 for supporting the internal assembly structure of the mobile device lighting devices 100 and 200; and a setting support unit 180 for supporting user settings for the mobile device lighting devices 100 and 200.

[0054] Light-emitting portions 110 and 210 can output light in the normal direction of one surface of the light-emitting portions 110 and 210. The other surface of the light-emitting portions 110 and 210 can be configured not to output light. For example, the light-emitting portions 110 and 210 may include a plurality of light-emitting diodes arranged on one surface of the light-emitting portions 110 and 210, and the plurality of light-emitting diodes may be electrically connected to light-emitting drivers 120 and 220.

[0055] Light-emitting drivers 120 and 220 can drive light-emitting units 110 and 210 and can be electrically connected to light-emitting units 110 and 210. For example, light-emitting drivers 120 and 220 can drive light-emitting units 110 and 210 by outputting current and / or voltage to light-emitting units 110 and 210, thereby determining whether light-emitting units 110 and 210 output light (and / or light output intensity) during a specific time period according to a control signal.

[0056] Reference Figures 2 to 4The (primary) mobile device lighting device 100 according to an example embodiment of the present disclosure may further include a power transmitter 130 and / or a wireless power transmission coil section 140.

[0057] Power transfer unit (PTU) 130 can convert pre-converted power POWER into power for wireless power transmission. For example, power transfer unit 130 may include at least one of gate driver 131, DC / DC converter 132, and controller 135. For example, DC / DC converter 132 can convert (e.g., boost or buck) the voltage of pre-converted power POWER to direct current (DC), and gate driver 131 may include an inverter that converts the DC power output from DC / DC converter 132 into AC power. Power transfer unit 130 can output AC power as power for wireless power transmission. Controllers 135 and 235 may be implemented as at least one of microcontrollers (MCUs), embedded systems, system-on-a-chip (SoCs), and system-in-package (SoCs), but this disclosure is not limited thereto.

[0058] The wireless power transmission coil section 140 can receive wireless power transmitted from the power transmitter 130. The wireless power transmission coil section 140 can be magnetically coupled to the wireless power receiving coil section 240, thereby transmitting the wireless power transmitted to the wireless power receiving coil section 240 by electromagnetic induction.

[0059] Therefore, in the absence of a wired connection structure, the wireless power transmission coil section 140 can form a power (and / or control signal) transmission path to the wireless power receiving coil section 240. That is, even when the (primary) mobile device lighting device 100 is not fixedly connected to the (secondary) mobile device lighting device 200, the (primary) mobile device lighting device 100 can still stably supply power (and / or control signals) to the (secondary) mobile device lighting device 200.

[0060] For example, the wireless power transmission coil section 140 can be configured to output a magnetic field in a direction different from the light emission direction of the light-emitting section 110 (e.g., the normal direction of a surface of the light-emitting section) (e.g., vertical, inclined, or opposite direction). For example, the wireless power transmission coil section 140 can be provided on the flanges of the (primary and secondary) mobile device lighting devices 100 and 200 that are opposite to each other.

[0061] For example, one surface of the light-emitting part 110 may have a surface that outputs light, and another surface of the light-emitting part 110 may surround the light-emitting driver 120, the power transmitter 130, and the wireless power transmission coil part 140. The wireless power transmission coil part 140 may be disposed at an edge of the other surface of the light-emitting part 110 to output a magnetic field in a direction that is not parallel to the light emission direction of an edge of one surface of the light-emitting part 110 (e.g., a vertical or inclined direction).

[0062] Reference Figures 2 to 4 The (secondary) mobile device lighting device 200 according to an example embodiment of the present disclosure may further include a power receiver (PRU) 230 and / or a wireless power receiving coil section 240.

[0063] The wireless power receiving coil 240 can receive power and a second control signal via wireless power transmission. The wireless power receiving coil 240 can be magnetically coupled to the wireless power transmitting coil 140 to receive power transmitted wirelessly. Therefore, without a wired connection structure, the wireless power receiving coil 240 can form a power (and / or control signal) transmission path from the wireless power transmitting coil 140. That is, even when the (secondary) mobile device lighting device 200 is not fixedly connected to the (primary) mobile device lighting device 100, the (secondary) mobile device lighting device 200 can still stably receive power (and / or control signals) from the (primary) mobile device lighting device 100.

[0064] The power receiver 230 can receive power transmitted wirelessly from the wireless power receiving coil section 240 and can convert the wirelessly transmitted power into converted power. For example, the power receiver 230 may include an AC-to-DC converter 231 and / or a DC / DC converter 232. For example, the AC-to-DC converter 231 may be implemented as a rectifier and can convert the AC power of the wirelessly transmitted power into DC power. For example, the DC / DC converter 232 can convert (e.g., boost or buck) the voltage of the DC power output by the AC-to-DC converter 231. The power receiver 230 can output DC power to the light-emitting section 210 and / or the light-emitting driver 220.

[0065] For example, the wireless power receiving coil 240 can be configured to receive power and a second control signal in a direction not parallel to the light emission direction of the light-emitting unit 210 (e.g., vertical or inclined). For example, the wireless power receiving coil 240 can be disposed on the flanges of the (primary and secondary) mobile device lighting devices 100 and 200 facing each other. The wireless power receiving coil 240 can be configured such that whether the wireless power receiving coil 240 is magnetically coupled to the wireless power transmission coil 140 depends on the moving part ( Figure 1 It changes from MV2 in the text.

[0066] Reference Figure 2 and Figure 4 The mobile device MV may include: a controller MVC, which outputs a first and / or second control signal SIGNAL to the (primary) mobile device lighting device 100; and a battery MVB, which outputs pre-converted power POWER to the (primary) mobile device lighting device 100.

[0067] For example, the controller MVC can be implemented as a computing device (including a processor, memory, storage device, input / output device, and communication device) or an electronic control unit (ECU). The controller MVC can manually generate first and / or second control signals SIGNAL based on driver input from the mobile device MV, or it can automatically generate first and / or second control signals SIGNAL when sensor readings in the mobile device MV meet predetermined conditions. The battery MVB can supply power to the controller MVC and can meet the overall power requirements of the mobile device MV.

[0068] The (primary) mobile device lighting device 100 may further include: a mobile device connector 150 that receives a first and / or a second control signal SIGNAL from the controller MVC of the mobile device MV. The mobile device connector 150 may receive pre-converted power POWER from the battery MVB of the mobile device MV.

[0069] For example, the mobile device connector 150 may include multiple branch connectors 151, 152 and 153 connected to the light driver 120 and the power transmitter 130, may include an integrated connector 155 connected to the mobile device MV, and may include multiple lines 154 that integrate the multiple branch connectors 151, 152 and 153 to the integrated connector 155.

[0070] The light-emitting driver 120 can receive pre-converted power (POWER) to output current, and can output current for driving the light-emitting unit 110 based on a first control signal SIGNAL. For example, the light-emitting unit 110 may include a plurality of light-emitting diodes 111, 112, and 113 corresponding to tail, stop, and turn, and the first control signal SIGNAL may include information for determining the on / off state of each of the plurality of light-emitting diodes 111, 112, and 113. For example, the number of on / off states of the N (N is a natural number) light-emitting diodes 111, 112, and 113 can be 2^N. N Furthermore, the information used to determine the on / off state can be implemented as N bits.

[0071] The gate driver 131 and / or DC / DC converter 132 of the power transmitter 130 can convert (e.g., voltage change and / or DC-AC conversion) the pre-converted power POWER and output the wireless power transmission power to the wireless power transmission coil section 140. In this case, the controller 135 of the power transmitter 130 can sense (feedback) the current of the gate driver 131 and / or DC / DC converter 132 to control the conversion operation of the gate driver 131 and / or DC / DC converter 132.

[0072] The wireless power transmission coil section 140 can transmit power wirelessly to the wireless power receiving coil section 240. In this case, the controller 135 of the power transmitter 130 can receive the second control signal SIGNAL and can transmit the second control signal SIGNAL to the wireless power receiving coil section 240 through the wireless power transmission coil section 140. That is, the wireless power transmission coil section 140 can output a magnetic field for transmitting the second control signal SIGNAL.

[0073] For example, the controller 135 of the power transmitter 130 can modulate the wireless power transmission power by at least one of the amplitude, frequency, and phase corresponding to the second control signal SIGNAL, so that the wireless power transmission coil section 140 transmits the wireless power transmission power and the second control signal SIGNAL together. Therefore, the number of wireless power transmission coil sections 140 required to transmit the wireless power transmission power and the second control signal SIGNAL can be reduced to one, thereby reducing the size of the (primary) mobile device lighting device 100 and / or the cost required to implement the (primary) mobile device lighting device 100.

[0074] For example, the controller 235 of the power receiver 230 can detect at least one of the amplitude, frequency, and phase of the wireless power transmission received by the wireless power receiving coil section 240 to receive the second control signal SIGNAL (reception information). Therefore, the number of wireless power receiving coil sections 240 required to receive the wireless power transmission and the second control signal SIGNAL can be reduced to one, thereby reducing the size of the (secondary) mobile device lighting device 200 and / or the cost required to implement the (secondary) mobile device lighting device 200.

[0075] The AC-to-DC converter 231 and / or DC / DC converter 232 of the power receiver 230 can convert (e.g., voltage change and / or AC-DC conversion) the power transmitted wirelessly. In this case, the controller 235 of the power receiver 230 can sense (feedback) the current of the AC-to-DC converter 231 and / or DC / DC converter 232 to control the conversion operation of the AC-to-DC converter 231 and / or DC / DC converter 232.

[0076] The light-emitting driver 220 can receive power converted by the power receiver 230 to output current, and can output current for driving the light-emitting part 210 based on the second control signal SIGNAL. For example, the light-emitting part 210 may include a plurality of light-emitting diodes 211, 212, and 213 corresponding to tail, stop, and turn, and the second control signal SIGNAL may include information for determining the on / off state of each of the plurality of light-emitting diodes 211, 212, and 213. For example, the number of on / off states of the N (N is a natural number) light-emitting diodes 211, 212, and 213 can be 2^N. N Furthermore, the information used to determine the on / off state can be implemented as N bits.

[0077] Reference Figure 4 and Figure 6 The controller 235 of the power receiver 230 can modulate the power of the wireless power transmission based on at least one of the amplitude shift keying modulation (ASK modulation), frequency shift keying modulation (FSK modulation), and phase shift keying modulation (PSK modulation) methods, but this disclosure is not limited thereto.

[0078] ASK modulation can be a method of modulating the message bits of data into the amplitude of electricity for wireless power transmission, and the amplitudes corresponding to 0 and 1 of the message bits can be different from each other.

[0079] FSK modulation is a method of modulating the message bits of data to the frequency of electricity for wireless power transmission, and the frequencies corresponding to 0 and 1 of the message bits can be different from each other.

[0080] PSK modulation can be a method of modulating the message bits of data into the phase of the power of wireless power transmission, and the phases corresponding to 0 and 1 of the message bits can be different from each other.

[0081] Reference Figure 4 and Figure 13The (secondary) mobile device lighting device 200 can perform load modulation operation S210 and control signal receiving operation S220. In load modulation operation S210, the controller 235 of the power receiver 230 can be woken up (S211), the load modulation operation can be activated (S212), and a signal for load modulation operation can be output (S213). In control signal receiving operation (S220), the controller 235 of the power receiver 230 can detect at least one of the amplitude, frequency, and phase of the wireless power transmission (S221), and can generate light-emitting part driving information Func1, Func2, and Func3 corresponding to the detection result (S222). The light-emitting driver 220 can drive the light-emitting part 210 according to the driving information (S223).

[0082] Reference Figure 4 and Figure 5 The controller 235 of the power receiver 230 can modulate the load of the wireless power receiving coil 240 in response to the power transmitted wirelessly from the wireless power receiving coil 240. For example, the load may include an impedance (e.g., a resistor, capacitor, or inductor), and the controller 235 can modulate the load of the wireless power receiving coil 240 by switching whether an impedance element that may be included in the power receiver 230 is electrically connected to the wireless power receiving coil 240.

[0083] The controller 135 of the power transmitter 130 can sense the load of the wireless power transmission coil section 140 (e.g., perform signal analysis). The load of the wireless power receiving coil section 240 can also be modulated when the load of the wireless power receiving coil section 240 is modulated. For example, the load may include impedance (e.g., resistance, capacitance, or inductance), and the controller 135 can sense the voltage and / or current of the wireless power transmission coil section 140 and analyze the voltage and / or current (e.g., perform load calculation based on the peak or average value of the signal, and perform inductance calculation based on the envelope analysis of the signal).

[0084] The controller 135 of the power transmitter 130 can select one of the wireless charging control mode and the wireless light emission control mode based on the load sensing result. For example, the controller 135 of the power transmitter 130 can determine whether to transmit the second control signal SIGNAL through the wireless power transmission coil section 140 according to the mode selection.

[0085] For example, when the wireless power receiving coil 240 is magnetically coupled to the wireless power transmitting coil 140, the controller 135 can select a wireless light emission control mode to wirelessly control the light emission of the light-emitting unit 210. Therefore, the power transmitter 130 can activate the operation of transmitting the second control signal SIGNAL to the wireless power receiving coil 240.

[0086] For example, when the wireless power receiving coil 240 is not magnetically coupled to the wireless power transmitting coil 140, the controller 135 can select a wireless charging control mode. Therefore, the power transmitter 130 can disable the transmission of the second control signal SIGNAL to the wireless power receiving coil 240.

[0087] In wireless charging control mode, when the wireless power receiving coil 240 is not magnetically coupled to the wireless power transmitting coil 140, the coil 340 of the mobile device 300 can be magnetically coupled to the wireless power transmitting coil 140. The mobile device control unit 335 of the mobile device 300 can control the coil 340 to be in a wireless charging-enabled state, and the wireless power transmitting coil 140 can transfer power from the wireless power transmission coil to the coil 340 to wirelessly charge the mobile device 300. The power received by the coil 340 from the wireless power transmission coil can be used to charge the battery of the mobile device 300.

[0088] The controller 135 of the power transmitter 130 can convert pre-converted power POWER into wireless power transmission power according to preset specifications (e.g., rated voltage or rated current) corresponding to the selected mode. For example, the driving specifications of the light-emitting unit 210 and the charging specifications of the mobile device 300 can be different from each other, and the controller 135 can pre-store information about the preset specifications. When operating in the wireless light-emitting control mode, the power transmitter 130 can output wireless power transmission power according to the driving specifications (e.g., rated voltage or rated current) of the light-emitting unit 210, and when operating in the wireless charging control mode, the power transmitter 130 can output wireless power transmission power according to the charging specifications (e.g., rated voltage or rated current) of the mobile device 300.

[0089] Reference Figure 4 , Figure 5 and Figure 12The (primary) mobile device lighting device 100 may include a load sensing operation S110 and a mode control operation S120. In the load sensing operation S110, the controller 135 of the power transmitter 130 can sense the output current of the DC / DC converter 132 (S111), activate the sensing mode of the gate driver 131 (S112), and sense the load of the wireless power transmission coil section 140 (S113). In the mode control operation S120, the controller 135 of the power transmitter 130 can evaluate the load of the wireless power transmission coil section 140 (S121), and when the load corresponds to a load for which there is no object to be magnetically coupled to the wireless power transmission coil section 140 (S122), the controller 135 of the power transmitter 130 can re-execute the load sensing operation S110. When the load corresponding to the object to be magnetically coupled to the wireless power transmission coil section 140 is the load of the wireless power receiving coil section 240 (S123), the controller 135 can determine to transmit the second control signal (S124) and can activate the wireless light emission control mode (accompanied modulation) of the gate driver 131 (S125). When the load corresponding to the object to be magnetically coupled to the wireless power transmission coil section 140 is the load of the mobile device 300 (S126), the controller 135 can activate the wireless charging control mode of the gate driver 131 (S127).

[0090] Reference Figure 3 and Figures 7 to 10 The wireless power transmission coil section 140 may include a wireless power transmission coil 141 that outputs a magnetic field, and may include a mounting member 142 that is configured to overlap with the wireless power transmission coil 141 in the magnetic field output direction of the wireless power transmission coil 141. The wireless power receiving coil section 240 may include a wireless power receiving coil 241 and a coil cover 242.

[0091] The wireless power transmission coil 141 can be embedded in the mounting member 142, and the wireless power receiving coil 241 can be embedded in the coil cover 242. For example, each of the wireless power transmission coil 141 and the wireless power receiving coil 241 can be in the form of copper wire wound on one layer or copper wire stacked and wound on multiple layers.

[0092] Mounting member 142 and coil cover 242 may have mutually matching shapes (e.g., planar surfaces) such as flanges. Mounting member 142 and coil cover 242 may be formed of a material with low magnetic permeability (e.g., a plastic or molded material) to allow magnetic fields to pass through. Mounting member 142 may have mounting supports 143 and 144 on one surface of mounting member 142.

[0093] The mobile device 300 can be disposed in a mounting space on one surface of the mounting member 142 so as to overlap with the magnetic field output by the wireless power transmission coil 141. Mounting supports 143 and 144 can protrude beyond the edge of the mounting space on one surface of the mounting member 142, thereby preventing the mobile device 300 from separating from the mounting member 142 in the horizontal direction. Mounting support 144 can be configured to cover the edge of the mounting space, thereby stably preventing the mobile device 300 from separating from the mounting member 142.

[0094] For example, the mounting support 143 may be spaced at least by a margin MG1 and MG2 from the inner edge 214 of the light-emitting part 210 so that the magnetic field of the wireless power transmission coil 141 is not interfered with by the light-emitting part 210. For example, the mounting support 143 may be implemented as a rib or a support frame, and the mounting support 144 may be implemented as a snap-fit ​​frame.

[0095] Reference Figure 11 The winding portion 141C of the wireless power transmission coil 141 can be embedded in the mounting member 142, and the lead-out end 141T of the wireless power transmission coil 141 can be led out from the inside of the mounting member 142 to the outside of the mounting member 142. Therefore, even when exposed to the outside of the mobile device, the wireless power transmission coil portion 140 can have a structure that helps prevent malfunctions or damage (e.g., coil deformation / corrosion) caused by external environmental factors (e.g., the inflow of moisture / diffusing substances). The wireless power transmission coil portion 140 can be manufactured using plastic injection molding, but this disclosure is not limited thereto.

[0096] For example, the winding portion 141C can be formed on the lower surface of the primary core 142B, and the lead-out end 141T can be formed in the cavity 142A. Thereafter, the lower layer 142C of the mounting member 142 can be filled into the cavity 142A, and the primary core 142B can be separated from the cavity 142A. Thereafter, the secondary core 142D can be disposed on the upper surface of the cavity 142A, and the upper layer 142E of the mounting member 142 can be filled into the secondary core 142D. Thereafter, the cavity 142A and the secondary core 142D can be separated from the mounting member 142.

[0097] In the mobile device lighting apparatus and mobile device according to exemplary embodiments of the present disclosure, the wire connection structures for light emission can be omitted or reduced, thereby increasing design freedom, or the mobile device lighting apparatus and mobile device can be advantageously achieved with reduced size (and / or cost). For example, due to the omission or reduction of wire connection structures, the lighting apparatus can have greater design freedom, such as being separately disposed on the fixed and moving parts of the mobile device. In addition, restrictions on the movement of the moving parts or inefficient (or unstable) implementation of the wire connection structures due to wire connection structures can be prevented.

[0098] Furthermore, the mobile device lighting device and mobile device according to the example embodiments of this disclosure can facilitate the implementation of a structure capable of charging the mobile device. For example, a mobile device driver can use the trunk (or front trunk) to participate in outdoor activities and rest outdoors. In this case, the mobile device lighting device and mobile device can charge the driver's mobile device during outdoor activities, and therefore the user does not need to carry additional equipment to charge the mobile device, and the work required to set up mobile device charging can be reduced.

[0099] Although exemplary embodiments have been shown and described above, it will be apparent to those skilled in the art that modifications and variations may be made without departing from the scope of this disclosure as defined by the appended claims.

Claims

1. A mobile device lighting device, comprising: Light-emitting part; A light-emitting driver drives the light-emitting part; A power transmitter converts pre-converted electricity into wireless power transmission electricity; as well as The wireless power transmission coil receives power transmitted wirelessly from the power transmitter.

2. The mobile device lighting device according to claim 1, wherein, The wireless power transmission coil outputs a magnetic field in a direction different from the light emission direction of the light-emitting part.

3. The mobile device lighting device according to claim 2, wherein, The light-emitting part has a first surface that outputs light, and a second surface of the light-emitting part surrounds the light-emitting driver, the power transmitter, and the wireless power transmission coil part. The wireless power transmission coil part is located at one edge of the second surface of the light-emitting part to output a magnetic field in a direction that is not parallel to the light emission direction of one edge of the light-emitting part.

4. The mobile device lighting device according to claim 2, wherein, The wireless power transmission coil unit includes: Wireless power transmission coil, output magnetic field; and The mounting component overlaps with the wireless power transmission coil in the direction of the magnetic field output of the wireless power transmission coil, and the mounting component has a mounting support on one surface of the mounting component.

5. The mobile device lighting device according to claim 4, wherein, The mounting support protrudes from the edge of the mounting space on one surface of the mounting member, and the mounting support covers the edge of the mounting space.

6. The mobile device lighting device according to claim 4, wherein, The wireless power transmission coil is embedded in the mounting component, and the lead-out end of the wireless power transmission coil extends from the inside of the mounting component to the outside of the mounting component.

7. The mobile device lighting device according to claim 1, further comprising: A mobile device connector receives a first control signal and pre-converted power from a mobile device, wherein the light-emitting driver drives the light-emitting part based on the first control signal.

8. The mobile device lighting device according to claim 7, wherein, The mobile device connector further receives a second control signal from the mobile device, and the wireless power transmission coil outputs a magnetic field for transmitting the second control signal.

9. The mobile device lighting device according to claim 8, wherein, The power transmitter modulates the wireless power transmission power by at least one of the amplitude, frequency, and phase corresponding to the second control signal, such that the wireless power transmission coil transmits the wireless power transmission power and the second control signal together.

10. The mobile device lighting device according to claim 8, wherein, The power transmitter: Sensing the load of the wireless power transmission coil section; Based on the load sensing results, select one of the wireless charging control mode and the wireless illumination control mode; and The mode selection determines whether to transmit the second control signal through the wireless power transmission coil.

11. The mobile device lighting device according to claim 7, wherein, The power transmitter: Sensing the load of the wireless power transmission coil section; Based on the load sensing results, select one of the wireless charging control mode and the wireless illumination control mode; and The pre-converted power is converted into wireless power transmission power according to a preset specification corresponding to the selected mode.

12. A mobile device lighting device, comprising: The wireless power receiving coil unit receives power and control signals via wireless power transmission. A power receiver receives power from the wireless power receiving coil and converts the power into converted power. The light-emitting part emits light based on the power converted by the power receiver; as well as A light-emitting driver drives the light-emitting part based on the control signal.

13. The mobile device lighting device according to claim 12, wherein, The wireless power receiving coil receives power and the control signal in a direction that is not parallel to the light emission direction of the light-emitting part.

14. The mobile device lighting device according to claim 12, wherein, The power receiver detects at least one of the amplitude, frequency, and phase of the power received by the wireless power receiving coil in order to receive the control signal.

15. The mobile device lighting device according to claim 12, wherein, The power receiver modulates the load of the wireless power receiving coil in response to the power received from the wireless power receiving coil.

16. A mobile device, comprising: Fixed components, including primary mobile equipment lighting devices; as well as Moving components, including secondary mobile device lighting, The primary mobile device lighting device includes: A power transmitter that converts pre-converted power into wireless power transmission power; and The wireless power transmission coil receives power transmitted wirelessly from the power transmitter, and The secondary mobile device lighting device includes: A wireless power receiving coil is magnetically coupled to the wireless power transmitting coil and receives power transmitted wirelessly; and The power receiver receives power transmitted wirelessly from the wireless power receiving coil and converts the wireless power transmitted power into converted power.

17. The mobile device of claim 16, further comprising: The controller outputs a first control signal and a second control signal to the lighting device of the primary mobile device. The primary mobile device lighting device further includes: a mobile device connector, which receives the first control signal and the second control signal, and The wireless power transmission coil unit transmits the second control signal to the wireless power receiving coil unit.

18. The mobile device according to claim 17, wherein, The power transmitter modulates the wireless power transmission power by at least one of the amplitude, frequency, and phase corresponding to the second control signal, such that the wireless power transmission coil transmits the wireless power transmission power and the second control signal together. The power receiver detects at least one of the amplitude, frequency, and phase of the wireless power transmission in order to receive the second control signal.

19. The mobile device according to claim 17, wherein, The power receiver modulates the load of the wireless power receiving coil in response to the power transmitted wirelessly from the wireless power receiving coil. The power transmitter: Sensing the load of the wireless power transmission coil section; Select one of the wireless charging control mode and the wireless light emission control mode based on the load sensing results; The mode selection determines whether to transmit the second control signal through the wireless power transmission coil. and The pre-converted power is converted into wireless power transmission power according to a preset specification corresponding to the selected mode.

20. The mobile device according to claim 16, wherein, The primary mobile device lighting device outputs light to the rear of the mobile device. The moving component moves to determine whether to open the internal space of the mobile device, and The wireless power receiving coil is configured such that whether the wireless power receiving coil is magnetically coupled to the wireless power transmitting coil changes according to the movement of the moving member.

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