Wireless charger

Abstract

The utility model provides a wireless charger which comprises a shell, and the shell is provided with a wireless input area for receiving energy and a wireless charging area for outputting energy. The energy receiving unit is arranged in the shell and is close to the wireless input area of the shell, and the energy receiving unit comprises a receiving coil driving part and an energy receiving coil; the energy output unit is arranged in the shell and is close to the wireless charging area of the shell, and the energy output unit comprises an output coil driving part and an energy output coil; the energy receiving unit is electrically connected with the energy output unit, so that the energy conversion efficiency between the energy output device and the energy receiving coil is improved, the charging efficiency of the device to be charged is improved, and the charging reliability is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging, and specifically relates to a wireless charger. Background Art

[0002] When charging electronic devices such as mobile phones and computers, wireless charging technology has been widely used due to its convenient and fast operation characteristics.

[0003] However, when wirelessly charging electronic devices, it is often difficult to align the electronic devices with the transmitting coil of the wireless charger, which not only leads to a significant decrease in charging efficiency, but also easily causes problems such as overheating and charging interruption during the charging process. Utility Model Content

[0004] One purpose of the present invention is to provide a new technical solution for a wireless charger.

[0005] According to a first aspect of the present invention, a wireless charger is provided, comprising:

[0006] A housing, wherein the housing is provided with a wireless charging area for outputting energy and a wireless input area for receiving energy;

[0007] an energy receiving unit, the energy receiving unit being disposed within the housing and proximate to the wireless input area of ​​the housing, the energy receiving unit comprising a receiving coil driving component and an energy receiving coil, the receiving coil driving component being connected to the energy receiving coil and configured to drive the energy receiving coil to move within the wireless input area of ​​the housing so that the energy receiving coil faces a transmitting coil of an energy output device;

[0008] an energy output unit, the energy output unit being disposed within the housing and proximate to a wireless charging area of ​​the housing, the energy output unit comprising an output coil driving component and an energy output coil, the output coil driving component being connected to the energy output coil and configured to drive the energy output coil to move within the wireless charging area of ​​the housing so that the energy output coil faces a receiving coil of a device to be charged placed in the wireless charging area;

[0009] The energy receiving unit is electrically connected to the energy output unit, wherein the energy receiving unit is used to convert the electromagnetic waves received from the transmitting coil of the energy output device into direct current, and the energy output unit is used to convert the direct current into electromagnetic waves and send them to the receiving coil of the device to be charged.

[0010] Optionally, the receiving coil driving component includes a receiving coil driving member, a first connecting portion and a second connecting portion, and the energy receiving coil is connected to the first connecting portion via the second connecting portion;

[0011] The receiving coil driver can drive the first connection part to move so that the second connection part moves along a first direction, and drive the second connection part or the energy receiving coil to move so that the energy receiving coil moves along a second direction, wherein the first direction intersects with the second direction.

[0012] Optionally, the receiving coil driving component includes a first motor and a first gear, and the first gear is fixed to the output end of the first motor and is used to drive the first connecting part to move.

[0013] Optionally, the first connecting part is a first chain belt, the first gear is connected to the first chain belt and is used to drive the first chain belt to rotate, and the second connecting part is connected to the first chain belt through the second gear and can move in the first direction relative to the first chain belt, wherein the first direction is the length direction of the first connecting part.

[0014] Optionally, the first connecting portion has a first rack, and the first gear cooperates with the first rack to enable the second connecting portion and the first connecting portion to move together in the first direction, wherein the first direction is the length direction of the first connecting portion.

[0015] Optionally, one of the first connecting part and the second connecting part is provided with a first sliding rail, and the other of the first connecting part and the second connecting part is provided with a first sliding groove cooperating with the first sliding rail, and the receiving coil driving part can drive the first sliding rail to slide relative to the first sliding groove so that the energy receiving coil and the second connecting part move together along the first direction, wherein the first direction is the length direction of the first connecting part.

[0016] Optionally, one of the second connecting part and the energy receiving coil is provided with a second slide rail, and the other of the second connecting part and the energy receiving coil is provided with a second slide groove that slides with the second slide rail, and the receiving coil driving member can drive the energy receiving coil to slide relative to the second connecting part along the second direction, wherein the second direction is the length direction of the second connecting part.

[0017] Optionally, the output coil driving component and the receiving coil driving component are symmetrically arranged in the housing.

[0018] Optionally, it further includes an electronic control unit and a pressure sensor, wherein the electronic control unit is electrically connected to the pressure sensor, and both the electronic control unit and the pressure sensor are disposed in the housing;

[0019] The pressure sensor is used to trigger the electronic control unit to operate when detecting the presence of a device to be charged in the wireless charging area;

[0020] The electric control unit includes a battery and a circuit board. The battery is connected to the circuit board. The energy receiving unit and the energy output unit are both electrically connected to the circuit board.

[0021] Optionally, a heat dissipation unit is further included, wherein the heat dissipation unit is disposed in the housing and electrically connected to the electronic control unit;

[0022] The heat dissipation unit is used to dissipate heat for the energy receiving unit, the energy output unit and the electronic control unit.

[0023] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0025] Figure 1 A schematic structural diagram of an energy receiving unit of a wireless charger provided by one embodiment of the present invention;

[0026] Figure 2 A schematic structural diagram of an energy output unit of a wireless charger provided by one embodiment of the present invention;

[0027] Figure 3 This is an internal side view of a wireless charger provided by one embodiment of the present invention.

[0028] in:

[0029] 1. Shell;

[0030] 2. Energy receiving unit; 21. Receiving coil driving component; 211. Receiving coil driving member; 2111. First motor; 2112. First gear; 212. First connecting portion; 213. Second connecting portion; 214. Second gear; 22. Energy receiving coil;

[0031] 3. Energy output unit; 31. Output coil drive component; 311. Output coil drive member; 3111. Second motor; 3112. Third gear; 312. Third connecting portion; 313. Fourth connecting portion; 314. Fourth gear; 32. Energy output coil;

[0032] 4. Electronic control unit; 41. Battery; 42. Circuit board; 5. Cooling unit. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0034] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0035] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0038] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0039] An embodiment of the present application provides a wireless charger, which includes a shell, an energy receiving unit and an energy output unit. The receiving coil driving component of the energy receiving unit is used to drive the energy receiving coil to move in the wireless input area of ​​the shell so that the energy receiving coil is opposite to the transmitting coil of an energy output device; the output coil driving component of the energy output unit is used to drive the energy output coil to move in the wireless charging area of ​​the shell so that the energy output coil is opposite to the receiving coil of a device to be charged placed in the wireless charging area; the energy receiving unit is electrically connected to the energy output unit, realizing energy conversion between the energy output device and the device to be charged, and improving the charging efficiency of the device to be charged.

[0040] In some embodiments, reference Figure 1 , an embodiment of the present application provides a wireless charger, the wireless charger comprising:

[0041] The housing 1 is provided with a wireless input area for receiving energy and a wireless charging area for outputting energy;

[0042] An energy receiving unit 2 is disposed within the housing 1 and near the wireless input area of ​​the housing 1. The energy receiving unit 2 includes a receiving coil driving component 21 and an energy receiving coil 22. The receiving coil driving component 21 is connected to the energy receiving coil 22 and is used to drive the energy receiving coil 22 to move within the wireless input area of ​​the housing 1 so that the energy receiving coil 22 is opposite to the transmitting coil of an energy output device.

[0043] Energy output unit 3, which is disposed within housing 1 and near the wireless charging area of ​​housing 1. Energy output unit 3 includes an output coil driving component 31 and an energy output coil 32. Output coil driving component 31 is connected to energy output coil 32 and is used to drive energy output coil 32 to move within the wireless charging area of ​​housing 1 so that energy output coil 32 is opposite to a receiving coil of a device to be charged placed in the wireless charging area.

[0044] The energy receiving unit 2 is electrically connected to the energy output unit 3, wherein the energy receiving unit 2 is used to convert the electromagnetic waves received from the transmitting coil of the energy output device into direct current, and the energy output unit 3 is used to convert the direct current into electromagnetic waves and send them to the receiving coil of the device to be charged.

[0045] In this embodiment, the wireless input area can be a side area on the shell 1 with energy reception, and the wireless charging area can be a side area on the shell 1 with energy output. The wireless charging area and the wireless input area can be two areas on the shell 1 that are opposite to each other, or they can be two adjacent areas on the shell 1. The embodiment of the present application does not limit this.

[0046] See also Figure 1The energy receiving unit 2 is arranged close to the inner side of the wireless input area of ​​the shell 1, and the energy output device can be close to the outer side of the wireless input area of ​​the shell 1; the receiving coil driving component 21 can drive the energy receiving coil 22 to move in the wireless input area of ​​the shell 1, and move the energy receiving coil 22 to the area close to the energy output device, so that the energy receiving coil 22 is opposite to the transmitting coil of an energy output device, thereby improving the energy conversion efficiency between the energy output device and the energy receiving coil 22.

[0047] See also Figure 2 The energy output unit 3 is arranged on the inner side of the wireless charging area close to the shell 1, and the device to be charged can be placed on the outer side of the wireless charging area of ​​the shell 1; the output coil driving component 31 can drive the energy output coil 32 to move in the wireless charging area of ​​the shell 1, and move the energy output coil 32 to the area close to the device to be charged, so that the energy output coil 32 is opposite to the receiving coil of the device to be charged placed in the wireless charging area, thereby improving the charging efficiency between the energy output coil 32 and the device to be charged.

[0048] At the same time, the energy receiving unit 2 is used to convert the electromagnetic waves received from the transmitting coil of the energy output device into direct current to form a stable direct current in the energy receiving coil 22; the energy output unit 3 is used to convert the direct current transmitted from the energy receiving coil 22 into electromagnetic waves and send them to the receiving coil of the device to be charged, thereby realizing energy conversion between the energy output device and the device to be charged.

[0049] The wireless charger can be used in devices that provide energy output devices, such as vehicles and energy storage devices, so as to charge mobile phones, wearable devices and notebooks through the wireless charger.

[0050] In one embodiment, the wireless charger is used on a vehicle, and the energy output device provided by the vehicle is a vehicle-mounted wireless charger. The energy receiving coil 22 receives the electromagnetic waves emitted by the vehicle-mounted wireless charger and can convert the electromagnetic waves into direct current. The direct current is then converted into electromagnetic waves through the energy output coil 32, thereby realizing charging of mobile phones or wearable devices placed on the vehicle waiting for charging devices.

[0051] The wireless charger may be provided with an electronic control unit, and the internal driving circuit of the electronic control unit may control the operation of the receiving coil driving component 21 and the output coil driving component 31. The receiving coil driving component 21 and the output coil driving component 31 operate and drive the energy output coil 32 and the energy receiving coil 22 to move, thereby enabling the energy receiving coil 22 to face the transmitting coil of the vehicle-mounted wireless charger, and at the same time making the energy output coil 32 face the receiving coil of the device to be charged, thereby enhancing the charging efficiency of the device to be charged, avoiding problems such as overheating and charging interruption during the charging process, and enhancing the reliability of charging.

[0052] And when charging the device to be charged, the user only needs to place the device to be charged on the wireless charger, and the energy output coil 32 in the wireless charger can automatically align with the device to be charged, without frequently adjusting the charging position of the device to be charged, thereby improving the convenience of charging.

[0053] In some embodiments, see Figure 1 The receiving coil driving component 21 includes a receiving coil driving member 211, a first connecting portion 212 and a second connecting portion 213, and the energy receiving coil 22 is connected to the first connecting portion 212 via the second connecting portion 213;

[0054] The receiving coil driver 211 can drive the first connection part 212 to move so that the second connection part 213 moves along the first direction. The receiving coil driver 211 can drive the second connection part 213 or the energy receiving coil 22 to move so that the energy receiving coil 22 moves along the second direction, wherein the first direction intersects with the second direction.

[0055] In this embodiment, the second connection part 213 and the first connection part 212 can be matched in transmission. When the receiving coil driving part 211 drives the first connection part 212 to move, the second connection part 213 is driven to move along the first direction through the first connection part 212, thereby driving the energy receiving coil 22 to move along the first direction; and the receiving coil driving part 211 can drive the second connection part 213, and the second connection part 213 is matched with the energy receiving coil 22 in transmission, thereby driving the energy receiving coil 22 to move along the second direction through the second connection part 213, or the receiving coil driving part 211 directly drives the energy receiving coil 22 to move, so that the energy receiving coil 22 moves along the second direction, thereby realizing the movement of the energy receiving coil 22 in the first direction and the second direction, increasing the range of movement of the energy receiving coil 22, and improving the efficiency and accuracy of the energy receiving coil 22 relative to the transmitting coil of an energy output device.

[0056] In one embodiment, the extension direction of the first connection portion 212 is the first direction, and the extension direction of the second connection portion 213 is the second direction; the first connection portion 212 is vertically connected to the second connection portion 213, that is, the first direction is perpendicular to the second direction, so that the energy receiving coil 22 can move in two directions perpendicular to each other; in another embodiment, the first connection portion 212 and the second connection portion 213 are obliquely connected, for example, the connection angle formed between the first connection portion 212 and the second connection portion 213 is an acute angle, that is, the angle between the first direction and the second direction is an acute angle, which can also enable the energy receiving coil 22 to move in two directions.

[0057] In some embodiments, see Figure 2The output coil driving component 31 includes an output coil driving member 311, a third connecting portion 312 and a fourth connecting portion 313, and the energy output coil 32 is connected to the third connecting portion 312 through the fourth connecting portion 313;

[0058] The output coil driver 311 can drive the third connection part 312 to move so that the fourth connection part 313 moves along the first direction. The output coil driver 311 can drive the fourth connection part 313 or the energy output coil 32 to move so that the energy output coil 32 moves along the second direction relative to the fourth connection part 313, thereby realizing the movement of the energy output coil 32 in two directions, thereby improving the efficiency and accuracy of the energy output coil 32 relative to the receiving coil of the device to be charged placed in the wireless charging area.

[0059] In some embodiments, see Figure 1 and Figure 3 The receiving coil driving component 211 includes a first motor 2111 and a first gear 2112 . The first gear 2112 is fixed to the output end of the first motor 2111 and is used to drive the first connecting portion 212 to move.

[0060] Also, see Figure 2 and Figure 3 The output coil driving component 311 includes a second motor 3111 and a third gear 3112 . The third gear 3112 is fixed to the output end of the second motor 3111 and is used to drive the third connecting part 312 to move.

[0061] In this embodiment, the driving circuit inside the wireless charger can control the operation of the first motor 2111 and the second motor 3111. The operation of the two motors drives the energy output coil 32 and the energy receiving coil 22 to run in two directions, so that the energy receiving coil 22 can face the transmitting coil of the vehicle-mounted wireless charger, and at the same time, the energy output coil 32 can face the receiving coil of the device to be charged, thereby enhancing the charging efficiency of the device to be charged.

[0062] In some embodiments, see Figure 3 The first connecting part 212 is the first chain belt, the first gear 2112 is connected to the first chain belt and is used to drive the first chain belt to rotate, the second connecting part 213 is connected to the first chain belt through the second gear 214 and can move in the first direction relative to the first chain belt, wherein the first direction is the length direction of the first connecting part 212.

[0063] In this embodiment, the second gear 214 is connected to the first chain belt. When the first gear 2112 drives the first chain belt to rotate, the first chain belt can drive the second gear 214 and the second connecting part 213 to move in the first direction, and then drive the energy receiving coil 22 to move in the first direction through the second connecting part 213. The cooperation between the gear and the chain belt ensures the accuracy of the energy receiving coil 22.

[0064] In some embodiments, see Figure 3 The output coil driving component 31 includes an output coil driving member 311, a third connecting portion 312, and a fourth connecting portion 313. The energy output coil 32 is connected to the third connecting portion 312 via the fourth connecting portion 313. The output coil driving member 311 can drive the third connecting portion 312 to move, so that the fourth connecting portion 313 moves along the first direction. The output coil driving member 311 can drive the fourth connecting portion 313 or the energy output coil 32 to move, so that the energy output coil 32 moves relative to the fourth connecting portion 313 along the second direction.

[0065] The third connecting part 312 is the second chain belt, the second gear 214 is connected to the second chain belt and is used to drive the second chain belt to rotate, the fourth connecting part 313 is connected to the second chain belt through the fourth gear 314 and can move in the first direction relative to the second chain belt, wherein the first direction is the length direction of the third connecting part 312, thereby ensuring the accuracy of the energy output coil 32 moving along the first direction.

[0066] In some embodiments, the first connecting portion 212 has a first rack, and the first gear 2112 cooperates with the first rack to enable the second connecting portion 213 and the first connecting portion 212 to move together in the first direction, where the first direction is the length direction of the first connecting portion 212.

[0067] In this embodiment, the first rack can extend along the first direction, and the first gear 2112 can drive the first rack to move when rotating, and then drive the second connecting part 213 to move in the first direction through the first rack, and the second connecting part 213 can drive the energy receiving coil 22 to move in the first direction, thereby ensuring the accuracy of the movement of the energy receiving coil 22 along the first direction.

[0068] In some embodiments, the output coil driving component 31 includes an output coil driving member 311, a third connecting portion 312, and a fourth connecting portion 313. The energy output coil 32 is connected to the third connecting portion 312 via the fourth connecting portion 313. The output coil driving member 311 can drive the third connecting portion 312 to move, so that the fourth connecting portion 313 moves along a first direction. The output coil driving member 311 can drive the fourth connecting portion 313 or the energy output coil 32 to move, so that the energy output coil 32 moves relative to the fourth connecting portion 313 along a second direction.

[0069] The third connecting part 312 has a second rack, and the third gear 3112 cooperates with the second rack to enable the fourth connecting part 313 and the third connecting part 312 to move together in the first direction, wherein the first direction is the length direction of the third connecting part 312, and the second rack extends along the first direction, thereby ensuring the accuracy of the movement of the energy output coil 32 along the first direction.

[0070] In some embodiments, one of the first connection part 212 and the second connection part 213 is provided with a first slide rail, and the other of the first connection part 212 and the second connection part 213 is provided with a first slide groove. The receiving coil driving part 211 can drive the first slide rail to slide relative to the first slide groove so that the energy receiving coil 22 and the second connection part 213 move together along the first direction, where the first direction is the length direction of the first connection part 212.

[0071] In a specific embodiment, the first connecting portion 212 is provided with a first slide groove, and the first slide groove extends along the first direction; the second connecting portion 213 is provided with a first slide rail, and the receiving coil driver 211 is capable of driving the first slide rail to slide relative to the first slide groove, so that the energy receiving coil 22 and the second connecting portion 213 move together along the first direction. The first slide groove provides guidance for the movement of the energy receiving coil 22, ensuring the stability of the energy receiving coil 22 moving along the first direction. In some embodiments, one of the third connecting portion 312 and the fourth connecting portion 313 is provided with a third slide rail, and the other of the third connecting portion 312 and the fourth connecting portion 313 is provided with a third slide groove. The output coil driver 311 is capable of driving the third slide rail to slide relative to the third slide groove, so that the energy output coil 32 and the fourth connecting portion 313 move together along the first direction.

[0072] In a specific embodiment, the output coil driving component 31 includes an output coil driving member 311, a third connecting portion 312, and a fourth connecting portion 313. The energy output coil 32 is connected to the third connecting portion 312 via the fourth connecting portion 313. The output coil driving member 311 can drive the third connecting portion 312 to move, so that the fourth connecting portion 313 moves along a first direction. The output coil driving member 311 can drive the fourth connecting portion 313 or the energy output coil 32 to move, so that the energy output coil 32 moves relative to the fourth connecting portion 313 along a second direction.

[0073] A third slide groove is provided on the fourth connecting part 313, and the third slide groove extends along the first direction; a third slide rail is provided on the third connecting part 312, and the output coil driving part 311 can drive the third slide rail to slide relative to the third slide groove, so that the energy output coil 32 and the third slide rail move together along the first direction, ensuring the stability of the energy output coil 32 moving along the first direction.

[0074] In some embodiments, one of the second connection part 213 and the energy receiving coil 22 is provided with a second slide rail, and the other of the second connection part 213 and the energy receiving coil 22 is provided with a second slide groove that slides with the second slide rail, and the receiving coil driving part 211 can drive the energy receiving coil 22 to slide relative to the second connection part 213 along the second direction, where the second direction is the length direction of the second connection part 213.

[0075] In a specific embodiment, a second slide rail is provided on the second connecting portion 213, and the second slide rail extends along the second direction. A second slide groove is provided on the energy receiving coil 22 for sliding cooperation with the second slide rail. The receiving coil driving member 211 can drive the energy receiving coil 22 to slide relative to the second connecting portion 213 along the second direction, thereby ensuring the stability of the energy receiving coil 22 moving along the second direction.

[0076] In some embodiments, one of the fourth connection part 313 and the energy output coil 32 is provided with a fourth slide rail, and the other of the fourth connection part 313 and the energy output coil 32 is provided with a fourth slide groove that slides with the fourth slide rail, and the output coil driving part 311 can drive the energy output coil 32 to slide relative to the fourth connection part 313 along the second direction.

[0077] In a specific embodiment, a fourth slide rail is provided on the fourth connecting portion 313, and the fourth slide rail extends along the second direction. The energy output coil 32 is provided with a fourth slide groove that slides with the fourth slide rail. The output coil driving component 311 can drive the energy output coil 32 to slide relative to the fourth connecting portion 313 along the second direction, thereby ensuring the stability of the energy output coil 32 moving along the second direction.

[0078] In some embodiments, see Figures 1 to 3 The output coil driving component 31 and the receiving coil driving component 21 are symmetrically arranged in the housing 1.

[0079] In this embodiment, the output coil driving component 31 and the receiving coil driving component 21 will generate moving vibration and stress when in operation. The output coil driving component 31 and the receiving coil driving component 21 are symmetrically arranged in the housing 1, which can make the wireless charger more stable during operation and ensure the stability and durability of the wireless charger.

[0080] Moreover, the symmetrical arrangement of the output coil driving component 31 and the receiving coil driving component 21 in the shell 1 can leave symmetrical arrangement space for the energy receiving coil 22 and the energy output coil 32, which is convenient for the routing and movement of the energy receiving coil 22 and the energy output coil 32; for example, the output coil driving component 31 and the receiving coil driving component 21 are both arranged close to the same side in the shell 1 to provide more space for the movement of the energy receiving coil 22 and the energy output coil 32.

[0081] In some embodiments, see Figures 1 to 3 The wireless charger further includes an electronic control unit 4 and a pressure sensor. The electronic control unit 4 is electrically connected to the pressure sensor, and both the electronic control unit 4 and the pressure sensor are disposed in the housing 1.

[0082] The pressure sensor is used to trigger the electronic control unit 4 to work when it detects that there is a device to be charged in the wireless charging area;

[0083] The electronic control unit 4 includes a battery 41 and a circuit board 42 . The battery 41 is connected to the circuit board 42 . The energy receiving unit 2 and the energy output unit 3 are both electrically connected to the circuit board 42 .

[0084] In this embodiment, the circuit board 42 is provided with circuits such as a wireless charging circuit, an MCU (Microcontroller Unit) circuit, a motor drive circuit and a pressure sensor circuit. The wireless charging circuit is connected to the energy receiving coil 22 and the energy output coil 32. The MCU circuit serves as the control center of the electronic control unit 4 and can control the current transmission between the energy receiving coil 22 and the energy output coil 32 through the wireless charging circuit; the motor drive circuit is connected to the receiving coil drive component 21 and the output coil drive component 31 to control the actions of the receiving coil drive component 21 and the output coil drive component 31, such as controlling the forward and reverse rotation of the motor in the receiving coil drive component 21 and the output coil drive component 31. The pressure sensor circuit is connected to the pressure sensor. When the pressure sensor detects that there is a device to be charged in the wireless charging area, the MCU circuit triggers the electronic control unit 4 through the pressure sensor circuit to ensure the timely charging of the device to be charged.

[0085] In some embodiments, see Figures 1 to 3 , the wireless charger further includes a heat dissipation unit 5, which is disposed in the housing 1 and electrically connected to the electronic control unit 4;

[0086] The heat dissipation unit 5 is used to dissipate heat from the energy receiving unit 2 , the energy output unit 3 and the electronic control unit 4 .

[0087] In one embodiment, the heat dissipation unit 5 is a fan, the thickness of the fan is smaller than the length and width of the fan, and the fan discharges air from the side in the length and width directions. The fan that discharges air from the side can not only dissipate heat for the circuit board and the coil, but also realize the miniaturization of the wireless charger.

[0088] When the wireless charger is actually in use, the control circuit in the electronic control unit 4 controls the action of the receiving coil drive component 21, thereby controlling the movement of the energy receiving coil 22 at the bottom, so that the energy receiving coil 22 is aligned with the transmitting coil of an energy output device. Then the wireless charging receiving circuit in the energy receiving unit 2 converts the received electromagnetic waves into direct current, which can be used to power the circuit in the wireless charger and charge the battery.

[0089] When the user places the device to be charged on the wireless charger, the pressure of the device to be charged is detected by the pressure sensor, and the control circuit in the electronic control unit 4 controls the output coil driving component 31 to operate, thereby controlling the movement of the energy output coil 32 on the top, so that the energy output coil 32 is aligned with the receiving coil of the device to be charged, thereby ensuring the charging efficiency of the device to be charged.

[0090] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A wireless charger, characterized in that: include: A housing, wherein the housing is provided with a wireless charging area for outputting energy and a wireless input area for receiving energy; an energy receiving unit, the energy receiving unit being disposed within the housing and proximate to the wireless input area of ​​the housing, the energy receiving unit comprising a receiving coil driving component and an energy receiving coil, the receiving coil driving component being connected to the energy receiving coil and configured to drive the energy receiving coil to move within the wireless input area of ​​the housing so that the energy receiving coil faces a transmitting coil of an energy output device; an energy output unit, the energy output unit being disposed within the housing and proximate to a wireless charging area of ​​the housing, the energy output unit comprising an output coil driving component and an energy output coil, the output coil driving component being connected to the energy output coil and configured to drive the energy output coil to move within the wireless charging area of ​​the housing so that the energy output coil faces a receiving coil of a device to be charged placed in the wireless charging area; The energy receiving unit is electrically connected to the energy output unit, wherein the energy receiving unit is used to convert the electromagnetic waves received from the transmitting coil of the energy output device into direct current, and the energy output unit is used to convert the direct current into electromagnetic waves and send them to the receiving coil of the device to be charged.

2. The wireless charger according to claim 1, wherein: The receiving coil driving component includes a receiving coil driving member, a first connecting portion and a second connecting portion, and the energy receiving coil is connected to the first connecting portion through the second connecting portion; The receiving coil driver can drive the first connection part to move so that the second connection part moves along a first direction, and drive the second connection part or the energy receiving coil to move so that the energy receiving coil moves along a second direction, wherein the first direction intersects with the second direction.

3. The wireless charger according to claim 2, wherein: The receiving coil driving component includes a first motor and a first gear. The first gear is fixed to the output end of the first motor and is used to drive the first connecting part to move.

4. The wireless charger according to claim 3, wherein: The first connecting part is a first chain belt, the first gear is connected to the first chain belt and is used to drive the first chain belt to rotate, the second connecting part is connected to the first chain belt through the second gear and can move in the first direction relative to the first chain belt, wherein the first direction is the length direction of the first connecting part.

5. The wireless charger according to claim 3, wherein: The first connecting portion has a first rack, and the first gear cooperates with the first rack to enable the second connecting portion and the first connecting portion to move together in the first direction, wherein the first direction is the length direction of the first connecting portion.

6. The wireless charger according to claim 2, wherein: One of the first connecting part and the second connecting part is provided with a first sliding rail, and the other of the first connecting part and the second connecting part is provided with a first sliding groove that cooperates with the first sliding rail. The receiving coil driving component can drive the first sliding rail to slide relative to the first sliding groove so that the energy receiving coil and the second connecting part move together along the first direction, wherein the first direction is the length direction of the first connecting part.

7. The wireless charger according to claim 2, wherein: One of the second connecting part and the energy receiving coil is provided with a second slide rail, and the other of the second connecting part and the energy receiving coil is provided with a second slide groove that slides with the second slide rail, and the receiving coil driving component can drive the energy receiving coil to slide relative to the second connecting part along the second direction, wherein the second direction is the length direction of the second connecting part.

8. The wireless charger according to any one of claims 1 to 7, wherein: The output coil driving component and the receiving coil driving component are symmetrically arranged in the housing.

9. The wireless charger according to claim 1, wherein: It also includes an electronic control unit and a pressure sensor, wherein the electronic control unit is electrically connected to the pressure sensor, and both the electronic control unit and the pressure sensor are disposed in the housing; The pressure sensor is used to trigger the electronic control unit to operate when detecting the presence of a device to be charged in the wireless charging area; The electric control unit includes a battery and a circuit board. The battery is connected to the circuit board. The energy receiving unit and the energy output unit are both electrically connected to the circuit board.

10. The wireless charger according to claim 9, characterized in that It also includes a heat dissipation unit, which is disposed in the housing and electrically connected to the electronic control unit; The heat dissipation unit is used to dissipate heat for the energy receiving unit, the energy output unit and the electronic control unit.

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