CN112087065A - Wireless charging seat and charging method using same - Google Patents
Wireless charging seat and charging method using same Download PDFInfo
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- CN112087065A CN112087065A CN202011026215.2A CN202011026215A CN112087065A CN 112087065 A CN112087065 A CN 112087065A CN 202011026215 A CN202011026215 A CN 202011026215A CN 112087065 A CN112087065 A CN 112087065A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 32
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- 238000009434 installation Methods 0.000 claims description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Abstract
The utility model relates to a wireless charging seat and utilize wireless charging seat to charge method, this wireless charging seat is used for charging for the equipment of waiting to charge, the equipment of waiting to charge embeds has receiving coil and a UWB label, wireless charging seat includes the pedestal, transmitting coil, actuating mechanism, be equipped with the second UWB label with first UWB label signal connection in the pedestal, wireless charging seat passes through second UWB label and a UWB label signal connection, in order to treat the receiving coil of battery charging outfit and fix a position, transmitting coil movably sets up in the pedestal, actuating mechanism orders about transmitting coil according to receiving coil's position and is close to or keeps away from receiving coil, thereby make transmitting coil and the relative distance of the receiving coil of waiting battery charging outfit more suitable, so that this wireless charging seat can satisfy the charging needs of multiple equipment of waiting to charge steadily.
Description
Technical Field
The present disclosure relates to wireless charging technologies, and more particularly, to a wireless charging cradle and a charging method using the same.
Background
The wireless charging technology is derived from the wireless power transmission technology, and the charger and the device to be charged are connected without wires because energy is transmitted between the charger and the device to be charged in a magnetic field. The principle of realizing wireless charging is roughly as follows:
the wireless charging seat is provided with a transmitting coil, and the device to be charged is provided with a receiving coil. When the device to be charged is charged wirelessly, the transmitting coil of the wireless charging seat is opposite to the receiving coil of the device to be charged, so that smooth charging is ensured.
However, when different devices to be charged are placed on the wireless charging cradle, the distance between the receiving coil of the device to be charged and the transmitting coil of the wireless charging cradle may be different, which may result in that the wireless charging cradle may not be adapted to the charging needs of various devices to be charged stably.
Disclosure of Invention
The embodiment of the application provides a wireless charging seat which is stable in charging performance and can meet the charging requirements of various devices to be charged and a method for charging by using the wireless charging seat.
On the one hand, this application provides a wireless charging seat for charge for treating the battery charging outfit, it has receiving coil and a UWB label to treat that the battery charging outfit embeds, wireless charging seat includes:
the base is provided with a bearing surface for placing the equipment to be charged, a plurality of second UWB tags are arranged in the base, and when the equipment to be charged is placed on the bearing surface, the second UWB tags are in signal connection with the first UWB tags so as to position the position of the receiving coil and generate positioning information;
the transmitting coil is movably arranged in the seat body;
and the driving mechanism is used for driving the transmitting coil to be close to or far away from the bearing surface according to the positioning information so as to adjust the relative distance between the transmitting coil and the receiving coil in the normal direction of the bearing surface.
In one embodiment, at least 5 second UWB tags are disposed within the housing.
In one embodiment, among the second UWB tags disposed in the seat body, at least 3 second UWB tags are located in the same installation plane, and at least 2 second UWB tags are located outside the installation plane, the installation plane is parallel to the bearing surface, and the transmitting coil is located on a side of the installation plane, which faces away from the bearing surface.
In one embodiment, a control circuit board is disposed in the seat body, the control circuit board is provided with a power circuit electrically connected to an external power source, the transmitting coil and the second UWB tag are both electrically connected to the power circuit, and when the control circuit board is powered on by the external power source, the external power source supplies power to the second UWB tag through the power circuit.
In one embodiment, the control circuit board is provided with a control module, and when the driving mechanism drives the transmitting coil to move to a preset distance relative to the receiving coil, the control module controls the power circuit to supply power to the transmitting coil so as to charge the device to be charged on the bearing surface.
In one embodiment, the driving mechanism comprises a moving assembly and a base, the transmitting coil is arranged on the base, and the moving assembly is used for driving the base to move up and down relative to the bearing surface.
In one embodiment, the base includes a first base, a second base and a lifting driving assembly, the second base is movably disposed on the first base in a lifting manner, the lifting driving assembly is disposed between the first base and the second base and is configured to drive the second base to move in a lifting manner relative to the first base, and the transmitting coil is disposed on the second base.
In one embodiment, the driving mechanism includes a first base, a second base and a lifting driving assembly, the second base is movably disposed on the first base in a lifting manner, the lifting driving assembly is disposed between the first base and the second base and is configured to drive the second base to move in a lifting manner relative to the first base, and the transmitting coil is disposed on the second base.
In one embodiment, the lifting driving assembly includes an electromagnet and a magnetic member, one of the electromagnet and the magnetic member is disposed on the first base, and the other of the electromagnet and the magnetic member is disposed on the second base, so that when the electromagnet is energized, the electromagnet can attract or repel the magnetic member, so that the second base moves up and down relative to the first base.
In one embodiment, an elastic member is disposed between the first base and the second base, and when the electromagnet is supplied with currents of different magnitudes, the deformation of the elastic member is different.
In one embodiment, the wireless charging stand comprises a translational motion component, and the translational motion component is used for driving the transmitting coil to perform translational motion according to the positioning information, so that the center of the transmitting coil and the projection of the center of the receiving coil on the bearing surface are substantially coincident.
In another aspect, the present application provides a method for charging by using the wireless charging cradle, including:
when the situation that the equipment to be charged is placed on the bearing surface of the base of the wireless charging base is detected, the wireless charging base is in signal connection with the first UWB tag through the second UWB tag so as to position the position of the receiving coil and generate positioning information;
according to the positioning information, the wireless charging seat drives the transmitting coil to be close to or far away from the bearing surface through the driving mechanism so as to adjust the relative distance between the transmitting coil and the receiving coil in the normal direction of the bearing surface;
through the cooperation of transmitting coil with receiving coil, the wireless charging seat charges treating charging device.
The utility model provides a wireless charging seat and utilize wireless charging seat to charge method, this wireless charging seat includes the pedestal, transmitting coil, actuating mechanism, be equipped with the UWB label in the pedestal, when utilizing this wireless charging seat to treat charging device and charge, UWB label in the pedestal and treat the UWB label signal connection in the charging device, fix a position to the receiving coil of treating charging device, actuating mechanism orders about transmitting coil according to receiving coil's position and is close to or keeps away from receiving coil, thereby make transmitting coil and the receiving coil's of treating charging device relative distance relatively suitable, so that this wireless charging seat can satisfy multiple charging need of treating charging device steadily.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wireless charging cradle according to an embodiment;
fig. 2 is a schematic diagram illustrating a spatial position of a second UWB tag relative to a transmitting coil in a wireless charging cradle according to an embodiment;
FIG. 3 is a schematic structural diagram of a wireless charging cradle according to another embodiment;
fig. 4 is a schematic structural diagram of a device to be charged, which is suitable for the wireless charging cradle shown in fig. 1 to perform wireless charging;
fig. 5 is another schematic structural diagram of a device to be charged, which is suitable for the wireless charging cradle shown in fig. 1 to perform wireless charging;
fig. 6 is a schematic structural diagram of a driving mechanism in the wireless charging cradle according to an embodiment;
FIG. 7 is a schematic diagram of a base of a driving mechanism of the wireless charging cradle according to an embodiment;
fig. 8 is a schematic structural diagram of a driving mechanism in a wireless charging cradle according to another embodiment;
fig. 9 is a flowchart illustrating a method for the wireless charging stand to perform wireless charging according to an embodiment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 and 4, the present application provides a wireless charging cradle 100 for charging a device 200 to be charged, where the device 200 to be charged may be a mobile phone or a tablet computer, or may be a bracelet with a wireless charging function. The type of the device to be charged 200 is not limited herein as long as the device to be charged 200 has a wireless charging function, that is, the device to be charged 200 has at least a receiving coil 201 built therein.
The wireless charging cradle 100 comprises a cradle body 110, a transmitting coil 120 and a driving mechanism 130. The base 110 has a carrying surface 111 for placing the device 200 to be charged, and when the wireless charging stand 100 is required to charge the device 200 to be charged, the device 200 to be charged is placed on the carrying surface 111. The shape of the base 110 may be a disc (see fig. 1) or a rectangular block (see fig. 3). In other embodiments, the base 110 may have other shapes, and the shape of the base 110 is not limited herein as long as it can meet the installation requirements of the structures of the transmission coil 120, the driving mechanism 130, and the like of the wireless charging base 110.
In this embodiment, the device 200 to be charged is provided with a first UWB (Ultra wide band) tag 202, a plurality of second UWB tags 101 are arranged in the seat body 110, and when the device 200 to be charged is placed on the bearing surface 111, the plurality of second UWB tags 101 are in signal connection with the first UWB tag 202 to locate the position of the receiving coil 201 and generate locating information.
For ease of understanding, the positioning information obtained by positioning the receiving coil 201 is described below by way of example. Since the relative position (hereinafter referred to as "first relative position") between the receiving coil 201 and the first UWB tag 202 is constant after the two are mounted to the device to be charged 200, accordingly, the relative position (hereinafter referred to as "second relative position") between the position where the plurality of second UWB tags 101 are disposed within the housing and the transmitting coil 120 is also determined. After the plurality of second UWB tags 101 and the first UWB tag 202 are signal-coupled, a relative position relationship between each other in space can be obtained, and then according to the relative relationship between the plurality of second UWB tags 101 and the first UWB tag 202, and the first relative position and the second relative position, the relative position between the transmitting coil 120 and the receiving coil 201 can be obtained, that is, the receiving coil 201 is positioned, and the relative position relationship is stored in an information form to obtain positioning information corresponding to the information form.
The driving mechanism 130 is configured to drive the transmitting coil 120 to approach or depart from the supporting surface 111 according to the positioning information, so as to adjust a relative distance between the transmitting coil 120 and the receiving coil 201 of the device to be charged 200 on the supporting surface 111. In this way, the transmitting coil 120 and the receiving coil 201 can be controlled at a suitable distance to ensure that the transmitting coil 120 and the receiving coil 201 cooperate with each other, enabling stable charging of the device to be charged 200. Since the driving mechanism 130 in this embodiment can adjust the position of the transmitting coil 120 according to the positioning information, even if the setting positions of the receiving coils 201 of different devices to be charged 200 are different, the transmitting coil 120 and the receiving coils 201 can be adjusted to an appropriate distance by adjusting the position of the transmitting coil 120 to ensure charging stability. It can be seen that the wireless charging cradle 100 can meet the charging requirements of different devices 200 to be charged.
It should be noted that, the first UWB tag 202 and the second UWB tag 101 both adopt an ultra-wideband technology, and implement wireless transmission by transmitting and receiving extremely narrow pulses having a nanosecond or microsecond order or less, unlike the conventional communication technology. Because the pulse time width is extremely short, the ultra-wideband on the frequency spectrum can be realized, the precision is high, the power consumption is low, and the power consumption can not be increased under the condition of ensuring high-precision positioning.
The number and the position of the first UWB tags 202 in the device to be charged 200 are not limited, as long as when the device to be charged 200 is placed on the bearing surface 111, the first UWB tag 202 and the second UWB tag 101 are in communication connection, and the position of the receiving coil 201 in the device to be charged 200 is located. For example, as shown in connection with fig. 4, the first UWB tag 202 of the device to be charged 200 is disposed within an area enclosed by an edge contour of the receiving coil 201. For another example, as shown in fig. 5, 3 first UWB tags 202 are provided in the device to be charged 200, wherein 2 first UWB tags 202 are provided outside the region surrounded by the edge contour of the receiving coil 201. In other embodiments, the first UWB tag 202 may be disposed on an edge contour of the receiving coil 201.
In some embodiments, at least 5 second UWB tags 101 are disposed in the housing 110, so as to construct a three-dimensional coordinate system of the space, so that the second UWB tags 101 located at different orientations can be respectively coupled with the first UWB tag 202 of the device to be charged 200 to determine the coordinate position of the first UWB tag 202 of the device to be charged 200, so as to achieve accurate positioning of the first UWB tag 202.
At least 3 second UWB tags 101 in the housing 110 are located in the same installation plane, and at least 2 second UWB tags 101 are located outside the installation plane, which is parallel to the bearing surface 111, so that the position of the bearing surface 111 in the three-dimensional spatial coordinate system of the second UWB tags 101 is close to the horizontal plane of the surface, thereby simplifying the positioning algorithm.
For example, fig. 2 schematically shows the spatial position relationship of 5 second UWB tags 101 relative to the transmitting coil 120 in the housing 110, wherein 3 second UWB tags 101 are located on the same installation plane 101a, and another 2 second UWB tags 101 are located outside the installation plane 101a, so that by using the three-dimensional coordinate system of the space where the 5 second UWB tags 101 can be located, after the plurality of second UWB tags 101 are respectively positioned in communication with the first UWB tag 202, the relative coordinate information in the three-dimensional space can be obtained.
As shown in fig. 1 and fig. 3, the transmitting coil 120 is located on a side of the installation plane 101a facing away from the bearing surface 111, that is, in a direction perpendicular to the bearing surface 111, the receiving coil 201 is located below the second UWB tag 101, so as to avoid the receiving coil 201 shielding the second UWB tag 101, which is easy to generate signal interference when the first UWB tag 202 and the second UWB tag 101 communicate with each other, and affect the positioning accuracy.
In the above embodiment, since the positions of the second UWB tags 101 are fixed after the second UWB tags 101 are disposed on the chassis 110, the position of the carrying surface 111 of the chassis 110 is determined in the three-dimensional coordinate system of the member of the second UWB tag 101, and then when the device to be charged 200 is placed on the carrying surface 111, the position of the receiving coil 201 relative to the carrying surface 111 can be determined in the three-dimensional coordinate system of the member of the second UWB tag 101, so that the position of the receiving coil 201 can be located, and the location information can be generated. The generating coil 120 is close to or far away from the bearing surface 111, that is, the relative distance between the transmitting coil 120 and the receiving coil 201 is adjusted, so that the transmitting coil 120 is adjusted to a proper position away from the receiving coil 201, and stable charging is realized.
It should be noted that, the distance between the transmitting coil 120 and the receiving coil 201 of the wireless charging cradle 100 in the stable charging state of the device to be charged 200 is a suitable distance. For convenience of description, the suitable distance is referred to as a "preset distance" in the following, that is, when the transmitting coil 120 moves to the preset distance relative to the receiving coil 201, the relative distance between the two is suitable for the wireless charging stand 100 to charge the device to be charged 200.
The preset distance may be preset, may be a specific distance value, or may be a distance range.
For example, in some embodiments, when the distance between the transmitting coil 120 and the receiving coil 201 is 1.5cm, and the wireless charging cradle 100 has the best charging effect on the device to be charged 200, the preset distance may be set to 1.5cm, and when the transmitting coil 120 is driven by the driving mechanism 130 to move relative to the carrying surface 111 of the wireless charging cradle 100, and finally the distance between the transmitting coil 120 and the receiving coil 201 of the device to be charged 200 on the carrying surface 111 is 1.5cm, the transmitting coil 120 stops performing distance adjustment relative to the receiving coil 201, so that the transmitting coil 120 is maintained at the preset distance relative to the receiving coil 201, so that the wireless charging cradle 100 stably charges the device to be charged 200.
In other embodiments, the predetermined distance is a range of distances. For example, when the distance between the transmitting coil 120 and the receiving coil 201 is 1.0cm to 2.0cm, the wireless charging cradle 100 has the best charging effect on the device 200 to be charged, and the preset distance may be set to 1.0cm to 2.0cm, so that when the transmitting coil 120 is adjusted to be within a range of 1.0cm to 2.0cm from the receiving coil 201, the wireless charging cradle 100 can stably charge the device 200 to be charged.
In some embodiments, a control circuit board is disposed in the seat body 110, the control circuit board is provided with a power circuit electrically connected to an external power source, the transmitting coil 120 and the second UWB tag 101 are electrically connected to the power circuit, and when the control circuit board is connected to the external power source, the external power source can supply power to the second UWB tag 101 through the power circuit, so as to ensure that the second UWB tag 101 can transmit and receive signals to communicate with the first UWB tag 202.
The control circuit board is provided with a control module, and when the driving mechanism 130 drives the transmitting coil 120 to move to a preset distance relative to the receiving coil 201, the control module controls the power circuit to supply power to the transmitting coil 120, so as to charge the device 200 to be charged on the bearing surface 111.
In some embodiments, the transmitting coil 120 is integrated in a mounting plate (not shown), and the transmitting coil 120 is movably disposed in the housing 110 by mounting the mounting plate in the housing 110 in a manner of being movable up and down.
In other embodiments, the transmit coil 120 may also be directly integrated into the mechanism that drives the transmit coil 120 to move.
For example, as shown in connection with fig. 6, the drive mechanism 130 includes a motion assembly 131 and a base 132. The transmitting coil 120 is disposed on the base 132, and the moving assembly 131 is configured to drive the base 132 to move up and down relative to the supporting surface 111, so that the base 132 can drive the transmitting coil 120 to approach or depart from the supporting surface 111, so that the transmitting coil 120 can be precisely aligned with the receiving coil 201.
In some embodiments, the moving assembly 131 may be a telescopic cylinder, and a telescopic rod 131a of the telescopic cylinder is connected to the base 132, so that the base 132 performs a lifting motion along with the telescopic motion of the telescopic rod 131a, so that the transmitting coil 120 disposed on the base 132 can be moved relative to the carrying surface 111 to adjust the distance from the transmitting coil 120 to the receiving coil 201 of the device 200 to be charged on the carrying surface 111.
It should be noted that the base 132 may be a fixed mounting seat which cannot drive the transmitting coil 120 to move, and the lifting motion is realized by the motion assembly 131. In other embodiments, the base 132 itself enables the up-and-down movement of the transmitter coil 120 relative to the bearing surface 111.
For example, as shown in fig. 7, the base 132 includes a first base 1321, a second base 1322 and a lift driving assembly (not shown), the first base 1321 is fixed in the base 110 of the wireless charging stand 100, the second base 1322 is movably disposed on the first base 1321 in a lifting manner, the lift driving assembly is disposed between the first base 1321 and the second base 1322 and is used to drive the second base 1322 to move in a lifting manner relative to the first base 1321, and the transmitting coil 120 is disposed on the second base 1322, so that the second base 1322 can drive the second base 1322 through the lift driving assembly to drive the second base 1322, so that the second base 1322 with the transmitting coil 120 to move in a lifting manner relative to the first base 1321, and the transmitting coil 120 is close to or far away from the supporting surface 111, thereby adjusting the height of the transmitting coil 120.
The sidewall of the base 132 is opened with a wire passing groove 120a so as to lead out a wire connected to the transmitting coil 120 from the wire passing groove 120 a.
In the embodiment where the base 132 itself can drive the transmitter coil 120 to move up and down relative to the carrying surface 111, as shown in fig. 8, the base 132 can be combined with the moving assembly 131 to adjust the position of the transmitter coil 120. For example, in some embodiments, the adjustment range of the moving component 131 is greater than the adjustment range of the second seat 1322 to the transmitting coil 120, so that the driving of the base 132 by the moving component is used to implement coarse adjustment of the position of the transmitting coil 120, and the lifting movement of the second seat 1322 of the base 132 relative to the first seat 1321 is used to implement fine adjustment of the position of the transmitting coil 120, so that the position adjustment efficiency of the transmitting coil 120 can be improved, and the position adjustment precision of the transmitting coil 120 can be ensured.
In other embodiments, in the embodiment where the base 132 includes the first seat 1321, the second seat 1322 and the lifting driving assembly, since the base 132 itself can adjust the position of the transmitting coil 120, the moving assembly 131 can be omitted, and in this case, the driving mechanism 130 includes the first seat 1321, the second seat 1322 and the lifting driving assembly. With this structure, the second seat 1322 can move up and down relative to the first seat 1321, so as to also move the transmitter coil 120 up and down relative to the supporting surface 111, so as to adjust the relative distance between the transmitter coil 120 and the receiver coil 201.
In some embodiments, the lifting driving assembly includes an electromagnet and a magnetic member, one of the electromagnet and the magnetic member is disposed on the first seat 1321, and the other of the electromagnet and the magnetic member is disposed on the second seat 1322, so that when the electromagnet is energized, the electromagnet can attract or repel the magnetic member, so that the second seat 1322 moves up and down relative to the first seat 1321. The control mode is simple, and the second seat 1322 can be lifted relative to the first seat 1321 only by controlling the direction and magnitude of the current passing through the electromagnet and adjusting the attraction or repulsion of the electromagnet to the magnetic member.
The magnetic member may be a magnet having N and S poles facing each other so as to generate a magnetic field when a current is applied to the electromagnet, and a repulsive force is generated between the electromagnet and the magnetic member when the opposite sides of the electromagnet and the magnetic member are homopolar, and an attractive force is generated between the electromagnet and the magnetic member when the opposite sides of the electromagnet and the magnetic member are heteropolar. The change of the direction of the current passing through the electromagnet can switch the polarity of the electromagnet, so as to realize that the second seat 1322 is close to or far from the first seat 1321.
Further, an elastic member (not shown) is disposed between the first seat 1321 and the second seat 1322, and when the electromagnet is supplied with currents of different magnitudes, the deformation amount of the elastic member is different. By using the structure, the elastic member can provide elasticity between the first seat 1321 and the second seat 1322, so that when the second seat 1322 moves relative to the first seat 1321 under the action of the electromagnet and the magnetic member, the elastic member can gradually deform, the elastic force applied between the second seat 1322 and the first seat 1321 by the elastic member and the magnetic action force of the electromagnet reach dynamic balance, so that the second seat 1322 can smoothly move gradually relative to the first seat 1321, the fine degree of adjusting the position of the transmitting coil 120 is improved, and then the moving precision of the transmitting coil 120 relative to the receiving coil 201 is higher, thereby greatly improving the charging stability of the wireless charging stand 100 when charging various devices 200 to be charged.
The elastic member may be a spring, or an elastic rod or an elastic bar made of an elastic material, and the structure of the elastic member is not limited herein.
It should be noted that there are many possibilities for the structure of the driving mechanism 130, for example, the driving mechanism 130 may also take the form of a screw-driven structure, as long as it is possible to move the transmitting coil 120 into alignment with the receiving coil 201 within the housing 110.
Referring to fig. 9, another embodiment of the present application provides a method for charging by using the wireless charging cradle 100, which includes the steps of:
in step S210, when it is detected that the device 200 to be charged is placed on the bearing surface 111 of the base 110 of the wireless charging base 100, the wireless charging base 100 is connected to the first UWB tag 202 through the second UWB tag 101, so as to locate the position of the receiving coil 201 and generate the location information.
It is understood that the first UWB tag 202 is disposed inside the device to be charged 200, so that when the device to be charged 200 is located at the charging position relative to the cradle 110, for example, when the device to be charged 200 is placed on the carrying surface 111 of the cradle 110, the position of the receiving coil 201 can be known by the wireless charging cradle 100 through signal coupling between the second UWB tag 101 and the first UWB tag 202.
There are many possible ways to detect whether the device to be charged 200 is placed on the carrying surface 111 of the base 110. For example, in some embodiments, a sensor is disposed on the carrying surface 111 of the base 110, and the sensor is used to sense whether the device 200 to be charged is placed on the carrying surface 111. The type of the sensor may be a pressure sensor, and it is determined whether the device 200 to be charged is placed on the bearing surface 111 by using the pressure change of the device 200 to be charged placed on the bearing surface 111. The sensor may also be an infrared sensor or a distance sensor, when the device 200 to be charged is placed on the bearing surface 111 of the seat 110, the device 200 to be charged shields the sensor, and the sensor can detect the device 200 to be charged. The type of sensor is not limited herein.
In step S220, according to the positioning information, the wireless charging cradle 100 drives the transmitting coil 120 to approach or depart from the supporting surface 111 through the driving mechanism 130, so as to adjust the relative distance between the transmitting coil 120 and the receiving coil 201 in the normal direction of the supporting surface.
It should be noted that the reference to "the transmitting coil 120 is aligned with the receiving coil 201" in this application includes a perfect alignment and an alignment within a certain error range. For example, when the transmitting coil 120 and the receiving coil 201 are completely aligned, the center of the transmitting coil 120 coincides with the orthographic projection of the center of the receiving coil 201 on the bearing surface 111. In order to ensure good electromagnetic transmission efficiency, the allowable error of "aligning the transmitting coil 120 with the receiving coil 201" may be less than 1.5cm, and at this time, the center of the transmitting coil 120 and the orthographic projection of the center of the receiving coil 201 on the bearing surface 111 are not coincident, and the offset distance is less than 1.5 cm. The offset distance is a straight-line distance between a point of the orthographic projection of the center of the transmitting coil 120 on the bearing surface 111 and a point of the orthographic projection of the center of the receiving coil 201 on the bearing surface 111.
In step S230, the wireless charging cradle 100 charges the device to be charged 200 through the cooperation of the transmitting coil 120 and the receiving coil 201. Specifically, since the transmitting coil 120 is driven by the driving mechanism 130 to be at a preset distance from the receiving coil 201, after the transmitting coil 120 is powered on, the transmitting coil 201 converts electric energy into magnetic energy, so that the receiving coil 201 generates current under a changing magnetic field to charge the device to be charged 200.
It should be noted that, when the transmitting coil 120 and the receiving coil 201 cooperate to charge the device to be charged 200, they are substantially aligned with each other. Reference herein to "the transmit coil 120 being aligned with the receive coil 201" includes perfect alignment as well as alignment within a certain error margin. For example, when the transmitting coil 120 and the receiving coil 201 are completely aligned, the center of the transmitting coil 120 coincides with the orthographic projection of the center of the receiving coil 201 on the bearing surface 111. In order to ensure good electromagnetic transmission efficiency, the allowable error of "aligning the transmitting coil 120 with the receiving coil 201" may be less than 1.5cm, and at this time, the center of the transmitting coil 120 and the orthographic projection of the center of the receiving coil 201 on the bearing surface 111 are not coincident, and the offset distance is less than 1.5 cm. The offset distance is a straight-line distance between a point of the orthographic projection of the center of the transmitting coil 120 on the bearing surface 111 and a point of the orthographic projection of the center of the receiving coil 201 on the bearing surface 111.
Further, the wireless charging cradle 100 includes a translational component (not shown in the figure), the translational component is configured to drive the transmitting coil 120 to perform translational motion according to the positioning information, so that the center of the transmitting coil 120 and the center of the receiving coil 201 substantially coincide with each other on the supporting surface, and then the transmitting coil 120 and the receiving coil 201 are automatically aligned, when the wireless charging cradle 100 is used to charge the device 200 to be charged, only the device 200 to be charged needs to be placed on the supporting surface 111, the second UWB tag 101 in the cradle 110 and the first UWB tag 202 in the device 200 to be charged perform signal coupling, and the position of the receiving coil 201 is located, the translational component can adjust the position of the transmitting coil 120 according to the position of the receiving coil 201 obtained by the positioning, and finally align the transmitting coil 120 and the receiving coil 201, so that the electromagnetic energy emitted by the transmitting coil 120 can be efficiently transmitted to the receiving coil 201, to improve electromagnetic energy transfer efficiency.
The structure of the translational motion assembly has many possibilities, for example, the translational motion assembly takes the form of a screw drive, a belt drive or a telescopic cylinder drive. The structure of the translational motion assembly is not described in detail herein, as long as the translational motion of the transmitting coil 120 in the base 110 to be aligned with the receiving coil 201 can be achieved.
It should be noted that in the embodiment where the wireless charging cradle 100 includes the driving mechanism 130 and the translational component, the transmitting coil 120 can be driven by the driving mechanism 130 to move up and down, and also driven by the translational component to move in a translational manner, so that the transmitting coil 120 can move to a better position relative to the receiving coil 201 in a three-dimensional space, so as to obtain a good wireless charging effect. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. The utility model provides a wireless charging seat for charge for treating the battery charging outfit, treat that the battery charging outfit embeds has receiving coil and a UWB label, its characterized in that, wireless charging seat includes:
the base is provided with a bearing surface for placing the equipment to be charged, a plurality of second UWB tags are arranged in the base, and when the equipment to be charged is placed on the bearing surface, the second UWB tags are in signal connection with the first UWB tags so as to position the position of the receiving coil and generate positioning information;
the transmitting coil is movably arranged in the seat body;
and the driving mechanism is used for driving the transmitting coil to be close to or far away from the bearing surface according to the positioning information so as to adjust the relative distance between the transmitting coil and the receiving coil in the normal direction of the bearing surface.
2. The wireless charging cradle according to claim 1, wherein at least 5 second UWB tags are provided in said cradle.
3. The wireless charging dock of claim 2, wherein at least 3 of the second UWB tags disposed in the cradle are located in a same installation plane, and at least 2 of the second UWB tags are located outside the installation plane, the installation plane is parallel to the carrying surface, and the transmitting coil is located on a side of the installation plane facing away from the carrying surface.
4. The wireless charging dock of claim 1, wherein a control circuit board is disposed in the cradle, the control circuit board has a power circuit electrically connected to an external power source, the transmitting coil and the second UWB tag are both electrically connected to the power circuit, and when the control circuit board is powered on by an external power source, the external power source supplies power to the second UWB tag through the power circuit.
5. The wireless charging dock of claim 4, wherein the control circuit board is provided with a control module, and when the driving mechanism drives the transmitting coil to move to a predetermined distance relative to the receiving coil, the control module controls a power circuit to supply power to the transmitting coil, so as to charge the device to be charged on the carrying surface.
6. The wireless charging dock of claim 1, wherein the driving mechanism comprises a moving component and a base, the transmitting coil is disposed on the base, and the moving component is configured to drive the base to move up and down relative to the carrying surface.
7. The wireless charging stand according to claim 6, wherein the base comprises a first base, a second base and a lifting driving assembly, the second base is movably disposed on the first base in a lifting manner, the lifting driving assembly is disposed between the first base and the second base and is used for driving the second base to move up and down relative to the first base, and the transmitting coil is disposed on the second base.
8. The wireless charging stand according to claim 1, wherein the driving mechanism includes a first base, a second base and a lifting driving assembly, the second base is movably disposed on the first base in a lifting manner, the lifting driving assembly is disposed between the first base and the second base and configured to drive the second base to move up and down relative to the first base, and the transmitting coil is disposed on the second base.
9. The wireless charging stand according to claim 7 or 8, wherein the lifting driving assembly comprises an electromagnet and a magnetic member, one of the electromagnet and the magnetic member is disposed on the first base, and the other of the electromagnet and the magnetic member is disposed on the second base, so that when the electromagnet is energized, the electromagnet can attract or repel the magnetic member, so as to enable the second base to move up and down relative to the first base.
10. The wireless charging dock of claim 9, wherein an elastic member is disposed between the first cradle and the second cradle, and when the electromagnet is supplied with currents of different magnitudes, the deformation of the elastic member is different.
11. The wireless charging cradle according to claim 1, comprising a translational motion component for driving the transmitting coil to perform translational motion according to the positioning information, so that the center of the transmitting coil and the projection of the center of the receiving coil on the carrying surface substantially coincide.
12. A method for charging by using the wireless charging cradle of any one of claims 1-11, the method comprising:
when the situation that the equipment to be charged is placed on the bearing surface of the base of the wireless charging base is detected, the wireless charging base is in signal connection with the first UWB tag through the second UWB tag so as to position the position of the receiving coil and generate positioning information;
according to the positioning information, the wireless charging seat drives the transmitting coil to be close to or far away from the bearing surface through the driving mechanism so as to adjust the relative distance between the transmitting coil and the receiving coil in the normal direction of the bearing surface;
through the cooperation of transmitting coil with receiving coil, the wireless charging seat charges treating charging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011026215.2A CN112087065A (en) | 2020-09-25 | 2020-09-25 | Wireless charging seat and charging method using same |
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| CN202011026215.2A CN112087065A (en) | 2020-09-25 | 2020-09-25 | Wireless charging seat and charging method using same |
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| CN112087065A true CN112087065A (en) | 2020-12-15 |
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| CN202011026215.2A Pending CN112087065A (en) | 2020-09-25 | 2020-09-25 | Wireless charging seat and charging method using same |
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Application publication date: 20201215 |