CN111030326B - Method for improving wireless charging efficiency - Google Patents
Method for improving wireless charging efficiency Download PDFInfo
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- CN111030326B CN111030326B CN201911312618.0A CN201911312618A CN111030326B CN 111030326 B CN111030326 B CN 111030326B CN 201911312618 A CN201911312618 A CN 201911312618A CN 111030326 B CN111030326 B CN 111030326B
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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
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a method for improving wireless charging efficiency.A wireless charging device is provided with a control module, a wireless charging coil, a coil automatic driving unit and a charging efficiency associated parameter detection module, wherein the wireless charging coil, the coil automatic driving unit and the charging efficiency associated parameter detection module are respectively connected with the control module; the displacement stroke of the wireless charging coil is between a first limit position and a second limit position, and the initial position is the first limit position or the second limit position; after a product to be charged is put in, the automatic coil driving unit firstly moves forwards to drive the wireless charging coil to move to an initial position along the forward direction, the charging efficiency associated parameter detection module firstly detects the associated parameters of the current position, then the automatic coil driving unit moves backwards to drive the wireless charging coil to move step by step along the reverse direction, the associated parameters are detected after each step of displacement, the step by step associated parameters are compared to obtain the position with the highest charging efficiency, and the wireless charging coil is kept at the position; the adjustment accuracy of the wireless charging coil is effectively ensured, the algorithm is relatively simple, and the electric control operation is reliable.
Description
Technical Field
The invention relates to the technical field of supports, in particular to a method for improving wireless charging efficiency.
Background
Traditional wireless support of filling, it can satisfy the centre gripping location and the wireless charging of electronic product such as cell-phone, when in actual use, because electronic product such as cell-phone's brand, model, size etc. are numerous, receiving coil's in these electronic product position also diverse, consequently different electronic product put on same wireless support of filling charge, charging coil and receiving coil can't aim at, lead to being difficult to reach preferred charge efficiency.
Later, it has been proposed to move the wireless charging coil inside the wireless charging stand to align the wireless charging coil with the position of the receiving coil in the electronic product, thereby effectively improving the charging efficiency. However, the existing wireless charging stand capable of moving the wireless charging coil has some defects, such as:
1. in the prior art, although the wireless charging coil can be moved, the adjustment accuracy is poor, and the ideal charging efficiency is difficult to adjust in actual adjustment; in addition, when the wireless charging coil is adjusted, the algorithm is complex, the electric control part is easy to be out of order, and the failure rate is high;
2. the wireless charging coil is driven to move by using the motor, after the wireless charging coil is moved to the position with the highest charging efficiency, the motor still needs to be powered on all the time to keep a working state, and the position of the wireless charging coil can be kept, otherwise, the wireless charging coil falls down (vertically placed due to gravity); therefore, the electric quantity consumption is high, and meanwhile, the performance of the motor is easily influenced in a negative way after the motor is used for a long time;
3. the mobile control structure design rationality of wireless coil of filling is not good enough, and it is big in wireless support that fills occupation space, is unfavorable for the wireless design overall arrangement who fills other spare parts of support, has increased the design and manufacture degree of difficulty that fills the support, simultaneously, has also limited the miniaturized design that fills the support to whole wireless.
3. The wireless charging coil is not ideal in the aspects of smoothness, accuracy and the like of movement control, and the use reliability of the wireless charging support is influenced.
Therefore, a new technical solution needs to be developed to solve the above problems.
Disclosure of Invention
In view of the above, the present invention is directed to the defects in the prior art, and a primary object of the present invention is to provide a method for improving wireless charging efficiency, in which a wireless charging coil is returned to an initial position, the wireless charging coil gradually displaces comparison parameters from the initial position, a position with the highest charging efficiency is detected, and the adjustment accuracy of the wireless charging coil is effectively ensured.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for improving wireless charging efficiency is applied to wireless charging equipment, wherein the wireless charging equipment is provided with a control module, a wireless charging coil, a coil automatic driving unit and a charging efficiency associated parameter detection module, wherein the wireless charging coil, the coil automatic driving unit and the charging efficiency associated parameter detection module are respectively connected with the control module;
the displacement stroke of the wireless charging coil is between a first limit position and a second limit position, and the initial position is the first limit position or the second limit position; after a product to be charged is put in, the automatic coil driving unit firstly moves forwards to drive the wireless charging coil to move to an initial position along the forward direction, the automatic coil driving unit stops working, the charging efficiency associated parameter detection module firstly detects the associated parameters of the current position, then the automatic coil driving unit moves reversely to drive the wireless charging coil to move step by step along the reverse direction, the associated parameters are detected after each step of displacement, the step-by-step associated parameters are compared to obtain the position with the highest charging efficiency, and the wireless charging coil is kept at the position.
As a preferable scheme, the coil automatic driving unit is provided with a forward and reverse rotation motor, the wireless charging device is provided with a steering switch, and when the wireless charging coil moves to an initial position along the forward direction, the steering switch is triggered, so that the forward and reverse rotation motor is enabled to output steering.
As a preferred scheme, the wireless charging equipment is provided with a storage unit connected with the control module;
the wireless charging coil is gradually displaced from an initial position, after each displacement step, a charging efficiency associated parameter detection module is used for detecting associated parameters capable of reflecting the charging efficiency, and all position information and corresponding associated parameters of the wireless charging coil of the product to be charged are memorized in a storage unit;
when a product to be charged is placed next time, the wireless charging coil is still kept at the position with the highest charging efficiency of the last product to be charged;
a charging efficiency associated parameter detection module detects an associated parameter of a current position; if the correlation parameters and the corresponding positions of the correlation parameters are consistent with those of the highest charging efficiency stored in the last product to be charged, the wireless charging coil does not need to move; if the current position information of the wireless charging coil is consistent with the stored and memorized correlation parameter of the other product to be charged at the current position, directly displacing the wireless charging coil from the current position to the position with the highest charging efficiency of the other product to be charged; and if the information of all the products to be charged is inconsistent with the memorized information of all the products to be charged, enabling the wireless charging coil to return to the initial position, detecting the associated parameters of the current position, then, gradually displacing the wireless charging coil along the reverse direction, detecting the associated parameters, comparing the gradually associated parameters, obtaining the position with the highest charging efficiency of the product to be charged at this time, and memorizing and storing the information.
As a preferred scheme, the correlation parameter is a conversion rate;
detecting the current conversion rate P1 of the wireless charging coil when the wireless charging coil is at the initial position; and then, controlling the wireless charging coil to move for a distance of T seconds/S from the initial position, detecting the current conversion rate P2, if P2> P1, continuing to move for the distance of T seconds/S in the current direction, detecting the current conversion rate Pn, if Pn = Pn-1, stopping the displacement, and if Pn < Pn-1, moving reversely for the distance of T seconds/S, and stopping the displacement.
As a preferred scheme, the correlation parameter is a loss rate;
detecting the current loss rate M1 of the wireless charging coil when the wireless charging coil is at the initial position; and then, controlling the wireless charging coil to move for a distance of T seconds/S from the initial position, detecting the current loss rate M2, if M2 is less than M1, continuing to move for the distance of T seconds/S in the current direction, detecting the current loss rate Mn, if Mn = Mn-1, stopping displacement, and if Mn > Mn-1, moving reversely for the distance of T seconds/S, and stopping.
As a preferred scheme, the wireless charging device is provided with a microswitch, and when a product to be charged is put in, the microswitch is triggered to feed back a signal to the control module, so that the relevant parameters of the current position are detected.
As a preferred scheme, the coil automatic driving unit comprises a tray, a first motor, a first worm and a sliding piece; the wireless charging coil is arranged on the tray; the sliding piece is provided with an internal threaded hole, and the first worm penetrates through the internal threaded hole; the first motor drives the first worm to rotate so that the sliding piece can selectively move up and down along the first worm, and correspondingly, the sliding piece is linked with the tray and the wireless charging coil to selectively move up and down together.
As a preferred scheme, the wireless charging equipment further comprises a clamping assembly for clamping the placed product to be charged;
the clamping assembly comprises two lateral clamping pieces and a second motor for controlling the two lateral clamping pieces to be selectively clamped or loosened; the control module is connected to the second motor; when a product to be charged is put in, the microswitch is triggered, and the control module controls the second motor to work so that the lateral clamping piece is clamped tightly.
Preferably, a second worm is connected to the second motor; one end of the second worm is connected with the second motor, and the other end of the second worm is provided with a column which is provided with a magnet; still be provided with hall sensor in the casing, hall sensor detects the magnet and rotates the condition and feed back to control module.
As a preferred scheme, the clamping assembly further comprises a bottom supporting piece, the microswitch is configured on the bottom supporting piece, when a product to be charged is put in by hand, the product to be charged is pressed against the bottom supporting piece, the microswitch is triggered, a signal is fed back to the control module, and then the control module controls the clamping action of the two lateral clamping pieces.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:
the wireless charging coil is reset to an initial position, the wireless charging coil gradually displaces comparison parameters from the initial position, the position with the highest charging efficiency is detected, the adjustment accuracy of the wireless charging coil is effectively ensured, the algorithm is relatively simple, and the electronic control operation is reliable;
secondly, in the process of detecting the position with the highest charging efficiency by gradually displacing the wireless charging coil, all position information and corresponding associated parameters of the wireless charging coil of the product to be charged are memorized in a storage unit; when a product to be charged is placed next time, for the product to be charged which is repeatedly placed twice, a link of moving a wireless charging coil is omitted, for different memorized products to be charged, only the current position needs to be switched to the highest charging efficiency position of the product to be charged, the displacement path is shortened, and only the unrecorded product to be charged starts to be displaced from the initial position to detect the highest charging efficiency position and memorize the highest charging efficiency position;
by improving the structure of the movable wireless charging coil assembly, the tray can be prevented from falling off when the first motor is powered off, electricity and energy are saved, the service lives of the first motor and the bracket are prolonged, the use noise is reduced, meanwhile, the structure of the movable wireless charging coil assembly is more compact, and the further miniaturization design of the wireless charging bracket is facilitated;
the sliding part is used for linking the tray, so that the sliding is smoother and smoother, particularly, the tray is ensured to be stably, smoothly and accurately displaced on the tray frame through the ingenious structural design of the tray frame, and the reliability of the movement control of the wireless charging coil is ensured;
fifthly, through the setting of column, on the one hand, effectively solved the problem that the worm can deviate after long-time rotating, guaranteed the cooperation of first drive gear and worm, on the other hand can set up magnet in the column upper end, detects the rotation condition of magnet through hall sensor, and the real-time control motor presss from both sides and stops.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a diagram of an assembly structure of an embodiment of the present invention;
FIG. 2 is a first exploded structural view of an embodiment of the present invention;
FIG. 3 is a diagram of a second exploded structure of an embodiment of the present invention;
FIG. 4 is a third exploded structural view (partial) of an embodiment of the present invention;
FIG. 5 is a fourth exploded structural view (partial) of an embodiment of the present invention;
FIG. 6 is a structural view of a tray frame according to an embodiment of the present invention;
FIG. 7 is a view of another angular configuration of the tray support of the embodiment of the present invention;
FIG. 8 is a view illustrating an assembled structure of the first motor, the first worm and the slider according to the embodiment of the present invention;
FIG. 9 is an exploded view of the motor mount and second worm of the embodiment of the present invention;
FIG. 10 is a structural view of a motor mount of an embodiment of the present invention;
fig. 11 is a schematic diagram of the control principle of the embodiment of the present invention.
The attached drawings indicate the following:
The driving hole 221 is guided to the groove 222
Positioning boss 2201 first motor 23
First worm mounting frame plate 231 upper plate 2311
Slider 25 tap 251
Left side limiting groove 31 and right side limiting groove 32
Steering switch 35 steering switch mounting cavity 351
Light homogenizing plate 71 decorative sheet 72
The charging efficiency related parameter detection module 200.
Detailed Description
Referring to fig. 1 to 11, specific structures of an electric clamping bracket according to an embodiment of the invention are shown.
A method for improving wireless charging efficiency comprises a shell 10 and a movable wireless charging coil assembly arranged in the shell 10; also comprises a clamping component 50 used for clamping the placed product; wherein: the movable wireless charging coil assembly comprises a wireless charging coil 21, a tray 22, a first motor 23 (which is a forward and reverse rotating motor), a first worm 24 and a sliding piece 25; the wireless charging coil 21 is arranged on the tray 22; the first worm 24 extends vertically, the sliding part 25 is provided with an internal threaded hole, and the first worm 24 passes through the internal threaded hole; the first motor 23 drives the first worm 24 to rotate, so that the sliding piece 25 can be selectively displaced up and down along the first worm 24, and correspondingly, the sliding piece 25 is linked with the tray 22 and the wireless charging coil 21 to be selectively displaced up and down together; and, a control module 100 is also provided, said control module 100 being connected to the first electric motor 23. Therefore, the first motor 23 can also ensure that the tray 22 does not fall off when the power is off, the power and the energy are saved, the service lives of the first motor 23 and the bracket are prolonged, the use noise is reduced, meanwhile, the wireless charging coil 21 and the tray 22 are moved by the combination of the first motor 23, the first worm 24 and the sliding piece 25, the structure of the wireless charging coil is more compact, and the further miniaturization design of the wireless charging bracket is facilitated.
As shown in fig. 4, 5 and 8, the sliding member 25 is extended to form a dial 251, the tray 22 is provided with a dial hole 221, the dial 251 extends into the dial hole 221, and the sliding member 25 acts on the dial hole 221 through the dial 251 to link the tray 22; of course, the connection relationship between the sliding member 25 and the tray 22 is not limited to this, and may be designed to be slightly changed as required, for example: 1. one of the slide member 25 and the tray 22 is provided with a clip, and the other is provided with a clamped portion, and the clip clamps the clamped portion; 2. one of the sliding part 25 and the tray 22 is provided with a clamping part, and the other is provided with a fastening part which is in adaptive connection with the fastening part; many other different scenarios will not be described in detail herein.
As shown in fig. 4 and 8, the first motor 23 is connected with a mounting frame plate 231; the mounting frame plate 231 has an upper plate 2311 and a lower plate 2312 arranged at an upper and lower interval, and a side plate 2313 connected between the upper plate 2311 and the lower plate 2312; the first worm 24 is suspended between the upper plate 2311 and the lower plate 2312. A vertical guide rod 2314 is connected between the upper plate 2311 and the lower plate 2312, the sliding piece 25 is provided with a sliding groove 252, and the vertical guide rod 2314 penetrates through the sliding groove 252 to guide the up-and-down displacement action of the sliding piece 25. The side plate 2313 is connected and positioned on a motor frame 40 which is described below, and a plurality of positioning holes are formed in the side plate 2313 and are matched with positioning columns on the motor frame 40.
As shown in fig. 2, 3, 5 to 7, the housing 10 is mounted inside a tray frame 30, and the tray frame 30 is located at the rear side of the tray 22; the tray 22 is provided along the tray frame 30 to be displaceable up and down. The tray frame 30 is provided with a left limiting groove 31 and/or a right limiting groove 32, and the left end and/or the right end of the tray 22 extend into the corresponding limiting grooves. The tray frame 30 is provided with a guide rib 33 extending vertically toward the tray 22, and correspondingly, a guide groove 222 extending vertically is provided on the tray 22, and the guide rib 33 is adapted to the corresponding guide groove 222. The tray frame 30 is provided with a stroke slot 36, and the sliding member 25 passes through the stroke slot 36 and is arranged along the stroke slot 36 in an up-and-down displacement manner. The tray frame 30 is provided with a lower limit point 34 for limiting the lower stroke of the tray 22; and/or a steering switch 35 for limiting the downward travel of the tray 22 is arranged on the tray frame 30 through a steering switch installation cavity 351, the steering switch 35 is connected to the control module 100, and when the tray 22 triggers the steering switch 35, the control module 100 controls the first motor 23 to steer. The tray 22 may be limited in its upward stroke by the inner wall surface of the top of the housing 10.
As shown in fig. 2, 3, 9 and 10, a motor frame 40 is disposed at a rear side of the tray frame 30, and the clamping assembly 50 is mounted on the motor frame 40. The clamping assembly 50 comprises two lateral clamping pieces 51 and a second motor 52 for controlling the two lateral clamping pieces 51 to be selectively clamped or unclamped; the control module 100 is connected to the second motor 52; the second motor 52 is connected with a second worm 53; one end of the second worm 53 is connected to the second motor 52, the other end is provided with a column 54, the outer peripheral surface of the column 54 can be rotatably positioned on the motor frame 40, the rear side of the motor frame 40 is provided with a support part 41 (preferably in an arc shape), the front side of the support part 41 is provided with an arc concave position as a rear positioning profile for the column 54, so that the other end of the worm 53 is supported by the motor frame 40 through the column 54, the problem that the worm deviates after long-time rotation is effectively solved, and the matching of the first driving gear and the worm is ensured; the column 54 is provided with a magnet 81; a hall sensor 82 is further arranged in the housing 10, and the hall sensor 82 detects the rotation of the magnet 81 and feeds back the rotation to the control module 100. The worm 53 drives the two lateral clamps 51 by means of a drive gear 55. In this embodiment, the clamping assembly 50 further includes a bottom support 56, a micro switch 90 is disposed on the bottom support 56, when an electronic product such as a mobile phone is put in, the electronic product is pressed against the bottom support 56, the micro switch 90 feeds back a signal to the control module 100, and the control module 100 controls the clamping action. Of course, the triggering method is not limited to the aforementioned triggering method, and the triggering method may be a button, a touch switch, voice, gesture, or the like, or may be automatic clamping after the mobile phone is put into the mobile phone and waits for a set time (for example, 5 seconds), or may be wireless charging detection to detect that the mobile phone is put into the triggering.
As shown in fig. 5, generally, the wireless charging coil 21 is located on the front side of the tray 22; a positioning convex part 2201 is convexly arranged on the front side of the tray 22, and the positioning convex part 2201 extends forwards into the first hole 211 of the wireless charging coil 21 and is positioned on the inner wall surface of the first hole 211. In this embodiment, the first hole 211 is racetrack-shaped, that is: the upper end and the lower end of the rectangular channel are respectively communicated with a semicircular channel, and the first hole 211 penetrates through the front side and the rear side of the wireless charging coil 21; the shape of the positioning protrusion 2201 matches the first hole 211, so that the wireless charging coil 21 can be directly clamped into the first hole 211 opposite to the positioning protrusion 2201, and the wireless charging coil 21 can be easily stacked and positioned on the tray 22.
As shown in fig. 2 and 3, the control module 100 includes a PCB 60 disposed in the housing 10, wherein the PCB 60 is disposed at the rear side of the motor frame 40; here, the motor frame 40 is provided with a first yielding hole and a second yielding hole for accommodating and positioning the first motor 23 and the second motor 52, respectively. Of course, in consideration of space utilization, a third yielding hole is formed in the PCB 60 corresponding to the positions of the second motor 52 and the worm 53, and the third yielding hole corresponds to the second yielding hole, so that the assembly structure is more compact.
When assembling, the tray frame 30, the motor frame 40 and the PCB 60 are locked or detachably locked together, or the three are locked on the housing 10 together; the casing 10 generally comprises a front casing 11 and a rear casing 12, wherein a light homogenizing plate and a decorative sheet are arranged on the front side of the front casing 11; the front shell 11 is provided with a light transmitting hole or a light transmitting part for transmitting internal light out of the light equalizing plate and the decorative sheet. The front shell 11 and the rear shell 12 are assembled in a front-back manner to enclose the movable wireless charging coil assembly and the clamping assembly 50. Here, the tray frame 30, the motor frame 40, and the PCB 60 are positioned on the front case 11, and the clamping assembly 50 is located between the motor frame 40 and the tray frame 30.
Next, the wireless charging stand of this embodiment is introduced, and the charging efficiency related parameter detecting module 200 detects a related parameter capable of reflecting the charging efficiency, which is defined as a charging efficiency related parameter, for example: the wireless conversion rate or the loss rate, and the like, and the related parameters are fed back to the control module 100, and the control module 100 can then selectively control the first motor 23 to drive the wireless charging coil 21 to displace, thereby achieving the method of the maximum charging efficiency.
Generally, the charging efficiency related parameter detecting module 200 may be in the integrated control module 100, and is equivalent to detecting the charging efficiency related parameter through the control module 100, or the charging efficiency related parameter detecting module 200 may be connected to the control module 100, and the charging efficiency related parameter detecting module 200 is used to detect the charging efficiency related parameter, and the detected data is fed back to the control module 100.
A method for improving wireless charging efficiency is applied to wireless charging equipment, wherein the wireless charging equipment is provided with a control module, a wireless charging coil, a coil automatic driving unit and a charging efficiency associated parameter detection module, wherein the wireless charging coil, the coil automatic driving unit and the charging efficiency associated parameter detection module are respectively connected with the control module;
the displacement stroke of the wireless charging coil is between a first limit position and a second limit position, and the initial position is the first limit position or the second limit position; after a product to be charged is put in, the automatic coil driving unit firstly moves forwards to drive the wireless charging coil to move to an initial position along the forward direction, the automatic coil driving unit stops working, the charging efficiency associated parameter detection module firstly detects the associated parameters of the current position, then the automatic coil driving unit moves reversely to drive the wireless charging coil to move step by step along the reverse direction, the associated parameters are detected after each step of displacement, the step-by-step associated parameters are compared to obtain the position with the highest charging efficiency, and the wireless charging coil is kept at the position.
Preferably, the coil automatic driving unit is provided with a forward and reverse rotation motor, the wireless charging device is provided with a steering switch, and when the wireless charging coil moves to an initial position along the forward direction, the steering switch is triggered to enable the forward and reverse rotation motor to output steering.
In the mode, when a product to be charged is placed into the wireless charging device each time, the wireless charging coil is firstly displaced to the initial position, then the wireless charging coil is gradually displaced from the initial position, the associated parameters are compared, and the highest charging efficiency is detected through one-step comparison.
If the relevant parameter is the conversion rate, detecting the current conversion rate P1 of the wireless charging coil after the wireless charging coil is displaced to the initial position; and then, controlling the wireless charging coil to move for a distance of T seconds/S from the initial position, detecting the current conversion rate P2, if P2> P1, continuing to move for the distance of T seconds/S in the current direction, detecting the current conversion rate Pn, if Pn = Pn-1, stopping the displacement, and if Pn < Pn-1, moving reversely for the distance of T seconds/S, and stopping the displacement. If the correlation parameter is the loss rate, detecting the current loss rate M1 of the wireless charging coil after the wireless charging coil is displaced to the initial position; and then, controlling the wireless charging coil to move for a distance of T seconds/S from the initial position, detecting the current loss rate M2, if M2 is less than M1, continuing to move for the distance of T seconds/S in the current direction, detecting the current loss rate Mn, if Mn = Mn-1, stopping displacement, and if Mn > Mn-1, moving reversely for the distance of T seconds/S, and stopping.
Next, another embodiment with a memory function is described in detail as an example:
a method for improving wireless charging efficiency is applied to wireless charging equipment, and the wireless charging equipment is provided with a wireless charging coil, an automatic driving unit for driving the wireless charging coil to move up and down, a control module, a charging efficiency associated parameter detection module and a storage unit; the control module is respectively connected with the automatic driving unit, the charging efficiency associated parameter detection module and the storage unit;
when putting into the product of waiting to charge for the first time, enter first mode: firstly, the wireless charging coil is displaced to an initial position, the electric efficiency associated parameter detection module detects the associated parameter of the current position, the control module controls the automatic driving unit to enable the wireless charging coil to be displaced from the initial position step by step, the associated parameter capable of reflecting the charging efficiency is detected through the charging efficiency associated parameter detection module after each step of displacement and is defined as the charging efficiency associated parameter, the gradual charging efficiency associated parameters are compared to obtain the position reflecting the highest charging efficiency, and the wireless charging coil is kept at the position of the highest charging efficiency; the correlation parameter of the highest charging efficiency of the product to be charged and the corresponding position information, and the correlation parameter of the charging efficiency after each step of displacement when the wireless charging coil is displaced step by step and the corresponding position are recorded and stored in the storage unit;
when a product to be charged is placed next time, the wireless charging coil is kept at the position with the highest charging efficiency of the previous product to be charged;
if the information of one product to be charged is stored and memorized, the next time the product to be charged is put into the mobile phone, the mobile phone enters a second mode: the charging efficiency associated parameter detection module detects a charging efficiency associated parameter of a current position; if the charging efficiency associated parameter and the current position information are consistent with the associated parameter of the highest charging efficiency and the corresponding position information stored in the product to be charged at the last time, the wireless charging coil does not need to move and is continuously kept at the current position; if the charging efficiency associated parameter and the current position information are inconsistent with the highest charging efficiency associated parameter and the corresponding position information stored in the product to be charged at the last time, entering a first mode to obtain the position reflecting the highest charging efficiency and information record storage;
if the information of more than two different products to be charged is memorized, the next time the product to be charged is put into the charging device, the third mode is entered: the charging efficiency associated parameter detection module detects a charging efficiency associated parameter of a current position; if the charging efficiency associated parameter and the current position information are consistent with the associated parameter of the highest charging efficiency and the corresponding position information stored in the product to be charged at the last time, the wireless charging coil does not need to move and is continuously kept at the current position; if the charging efficiency related parameter and the current position information are not consistent with the related parameter of the highest charging efficiency and the corresponding position information stored in the product to be charged at the last time, but are consistent with the charging efficiency related parameter of the stored and memorized current position information of another product to be charged, the control module controls the automatic driving unit to directly displace the wireless charging coil from the current position to the position of the highest charging efficiency of another product to be charged; and if the two information of the charging efficiency related parameter and the current position are not consistent with the information of the product to be charged stored and memorized, entering a first mode, and obtaining the position reflecting the highest charging efficiency and information record storage.
The first situation is as follows: take the detection conversion rate as an example.
The initial position of the wireless charging coil 21 is at the highest or lowest position of the tray rack 30;
when the mobile phone a is put into the mobile phone a for the first time and touches the microswitch 90, the microswitch 90 feeds back a signal to the control module 100 to indicate that the mobile phone a is put into place; the control module 100 detects the current conversion rate P1 of the wireless charging coil 21; then, the control module 100 starts the first motor 23 to operate, moves for a distance of T seconds/S in one direction (which is opposite to the initial position, and moves towards the lowest direction if the initial position is the highest position, and moves towards the highest direction if the initial position is the lowest position), detects the current conversion rate P2 again, continues to move for the distance of T seconds/S in the current direction if P2> P1, detects the current conversion rate Pn again, and if Pn = Pn-1, stopping the displacement, if Pn < Pn-1, stopping after moving reversely for T seconds/S distance, the current position of the wireless charging coil 21 is the position of the mobile phone a with the highest charging efficiency on the wireless charging support, and the control module 100 records and stores two pieces of information, namely the highest charging efficiency Pa of the mobile phone a and the position Ya of the corresponding wireless charging coil 21, in the storage unit; in fact, for the mobile phone a, the position Ya at which the wireless charging coil 21 is displaced from the initial position to the highest charging efficiency Pa is described, and each position point and the corresponding conversion rate are described.
Until the next mobile phone playing, the position of the wireless charging coil 21 is kept at the position Ya;
when the mobile phone is put into the mobile phone for the second time, the micro switch 90 is touched, and the micro switch 90 feeds back a signal to the control module 100 to indicate that the mobile phone is put into place; the control module 100 detects the current slew rate of the wireless charging coil 21;
if the two pieces of information of the current conversion rate and the position of the wireless charging coil 21 are consistent with the two pieces of information of the stored highest charging efficiency Pa of the mobile phone a and the stored position Ya of the corresponding wireless charging coil 21, the mobile phone is considered to be the mobile phone a, namely the mobile phone is the same as the previous mobile phone, and the wireless charging coil 21 does not need to move;
if the two pieces of information of the current conversion rate and the position of the wireless charging coil 21 are inconsistent with the two pieces of information of the stored highest charging efficiency Pa of the mobile phone a and the stored position Ya of the corresponding wireless charging coil 21, the mobile phone which is put in is considered to be a new mobile phone different from the mobile phone a, and the new mobile phone is defined as a mobile phone b; then, the control module 100 starts the first motor 23 to work, drives the wireless charging coil 21 to displace to the initial position, and then processes according to a new mobile phone mode, that is: as if the mobile phone a is put into the mobile phone a for the first time; firstly, the control module 100 detects the current conversion rate P1 of the wireless charging coil 21 at the initial position, and then the control module 100 starts the first motor 23 to work to drive the wireless charging coil 21 to move towards the opposite side of the initial position, so as to detect the highest charging efficiency step by step; the control module 100 records and stores the highest charging efficiency Pb of the mobile phone b and the position Yb of the corresponding wireless charging coil 21 in the storage unit; (ii) a Similarly, in the mobile phone b, the wireless charging coil 21 is displaced from the initial position to the position Yb where the charging efficiency Pb is highest, and each position point and the corresponding conversion rate are described.
Until the next mobile phone playing, the position of the wireless charging coil 21 is kept at the position Yb;
when the mobile phone is put into the mobile phone for the third time and touches the microswitch 90, the microswitch 90 feeds back a signal to the control module 100 to indicate that the mobile phone is put into place; the control module 100 detects the current slew rate of the wireless charging coil 21;
if the two information of the current conversion rate and the position of the wireless charging coil 21 are consistent with the stored two information of the highest charging efficiency Pb of the mobile phone b and the position Yb of the corresponding wireless charging coil 21, the mobile phone b is considered as the mobile phone b, namely the mobile phone b is the same as the mobile phone at the last time, and the wireless charging coil 21 does not need to move;
if the current conversion rate and the position information of the wireless charging coil 21 are consistent with the stored corresponding conversion rate of the mobile phone a at the position point, the mobile phone a is considered to be the mobile phone a, and the control module 100 starts the first motor 23 to work to drive the wireless charging coil 21 to directly displace from the current position to the position Ya;
if the current conversion rate and the position information of the wireless charging coil 21 are not consistent with the corresponding charging efficiency of the stored mobile phones a and b at the position point, the mobile phone is considered to be a new mobile phone different from the mobile phones a and b, and the new mobile phone is defined as a mobile phone c; then, the control module 100 starts the first motor 23 to work, drives the wireless charging coil 21 to displace to the initial position, and then processes according to a new mobile phone mode, that is: as if the mobile phone a is put into the mobile phone a for the first time; firstly, the control module 100 detects the current conversion rate P1 of the wireless charging coil 21 at the initial position, and then the control module 100 starts the first motor 23 to work to drive the wireless charging coil 21 to move towards the opposite side of the initial position, so as to detect the highest charging efficiency step by step; the control module 100 records and stores two pieces of information of the highest charging efficiency Pc of the mobile phone c and the position Yc of the corresponding wireless charging coil 21 in a storage unit; similarly, for the mobile phone c, the wireless charging coil 21 is displaced from the initial position to the position Yc of the highest charging efficiency Pc, and each position point and the corresponding conversion rate are recorded.
In this way, for a new mobile phone, the mobile phone needs to start moving from an initial position, detect the highest charging efficiency step by step and record correspondingly; if the mobile phone put in again later is the mobile phone memorized last time, the wireless charging coil 21 does not need to be moved, and the put position is the position corresponding to the highest charging efficiency; if the mobile phone put in again later is the mobile phone before the last memorized mobile phone, the wireless charging coil 21 does not need to be moved to the initial position, and only the mobile phone needs to be directly moved from the current position to the position corresponding to the highest charging efficiency of the mobile phone, so that the moving path is short; so, effectively reduce the consumption, its intelligent degree is higher, can make the cell-phone charge in the position of highest charge efficiency fast.
Case two: taking the detection loss rate as an example, compared with the method described in the case of the detection conversion rate, the two methods are basically the same, and the main difference is that: in case one, the conversion rates are compared and the one-step and one-step motion is to detect a higher conversion rate; in case two, the loss rates are compared, and the step-by-step motion is to detect a lower loss rate, which of course also represents a higher conversion rate;
specifically, the method comprises the following steps: the initial position of the wireless charging coil 21 is at the highest or lowest position of the tray rack 30;
when the mobile phone a is put into the mobile phone a for the first time and touches the microswitch 90, the microswitch 90 feeds back a signal to the control module 100 to indicate that the mobile phone a is put into place; the control module 100 detects the current loss rate M1 of the wireless charging coil 21; then, the control module 100 starts the first motor 23 to operate, moves for a distance of T seconds/S in one direction (which is opposite to the initial position, and if the initial position is the highest position, the initial position is in the lowest position, and if the initial position is the lowest position, the initial position is in the highest position), detects the current loss rate M2, continues to move for the distance of T seconds/S in the current direction if M2< M1, detects the current loss rate Mn, stops the displacement if Mn = Mn-1, and stops moving for the distance of T seconds/S in the reverse direction if Mn > Mn-1. The current position of the wireless charging coil 21 is the position of the lowest charging loss rate of the mobile phone a on the wireless charging support, and the control module 100 records and stores two pieces of information, namely the lowest charging loss rate Ma of the mobile phone a and the position Ya of the corresponding wireless charging coil 21, in the storage unit; in fact, for the mobile phone a, the displacement of the wireless charging coil 21 from the initial position to the lowest charging loss rate Ma is recorded for each position point in the middle and the corresponding lowest charging loss rate.
The subsequent second cell phone playing, the third cell phone playing and the Nth cell phone playing are the same as the previous situation, and in this way, for a new cell phone, the new cell phone needs to move from the initial position, the lowest loss rate is detected step by step, and corresponding records are made; if the mobile phone put in again later is the mobile phone memorized last time, the wireless charging coil 21 does not need to be moved, and the put position is the position corresponding to the highest charging efficiency; if the mobile phone put in again later is the mobile phone before the last memorized mobile phone, the wireless charging coil 21 does not need to be moved to the initial position, and only the mobile phone needs to be directly moved from the current position to the position corresponding to the charging loss rate of the mobile phone, so that the moving path is short; so, effectively reduce the consumption, its intelligent degree is higher, can make the cell-phone charge in the position of highest charge efficiency fast.
In general, to achieve the recording function, an external memory or a temporary memory may be added to the cradle to serve as the aforementioned storage unit.
In summary, the design of the invention is mainly characterized in that the wireless charging coil is reset to the initial position, the wireless charging coil gradually displaces the comparison parameter from the initial position, the position with the highest charging efficiency is detected, the adjustment accuracy of the wireless charging coil is effectively ensured, the algorithm is relatively simple, and the electric control operation is reliable;
secondly, in the process of detecting the position with the highest charging efficiency by gradually displacing the wireless charging coil, all position information and corresponding associated parameters of the wireless charging coil of the product to be charged are memorized in a storage unit; when a product to be charged is placed next time, for the product to be charged which is repeatedly placed twice, a link of moving a wireless charging coil is omitted, for different memorized products to be charged, only the current position needs to be switched to the highest charging efficiency position of the product to be charged, the displacement path is shortened, and only the unrecorded product to be charged starts to be displaced from the initial position to detect the highest charging efficiency position and memorize the highest charging efficiency position;
moreover, through the improved design of the structure of the movable wireless charging coil assembly, the tray can be prevented from falling off when the first motor is powered off, electricity and energy are saved, the service lives of the first motor and the bracket are prolonged, the use noise is reduced, meanwhile, the structure of the movable wireless charging coil assembly is more compact, and the further miniaturization design of the wireless charging bracket is facilitated;
moreover, the sliding part is used for linking the tray, so that the sliding is smoother and smoother, particularly, the tray is ensured to be stably, smoothly and accurately displaced on the tray frame through the ingenious structural design of the tray frame, and the reliability of the movement control of the wireless charging coil is ensured;
and, through the setting of column, on the one hand, effectively solved the worm and can deviate after long-time rotation problem, guaranteed the cooperation of first drive gear and worm, on the other hand can set up magnet in the column upper end, detects the rotation condition of magnet through hall sensor, and real-time control motor presss from both sides and stops.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (8)
1. A method for improving wireless charging efficiency is applied to wireless charging equipment, and is characterized in that: the wireless charging equipment is provided with a control module, a wireless charging coil, a coil automatic driving unit and a charging efficiency associated parameter detection module, wherein the wireless charging coil, the coil automatic driving unit and the charging efficiency associated parameter detection module are respectively connected with the control module; wherein:
the automatic coil driving unit comprises a tray, a first motor, a first worm and a sliding piece; the wireless charging coil is arranged on the tray; the sliding piece is provided with an internal threaded hole, and the first worm penetrates through the internal threaded hole; the first motor drives the first worm to rotate so that the sliding piece can selectively move up and down along the first worm, and correspondingly, the sliding piece linkage tray and the wireless charging coil can selectively move up and down together;
the displacement stroke of the wireless charging coil is between a first limit position and a second limit position, and the initial position is the first limit position or the second limit position; after a product to be charged is put in, the automatic coil driving unit firstly moves forwards to drive the wireless charging coil to move to an initial position along the forward direction, the automatic coil driving unit stops working, the charging efficiency associated parameter detection module firstly detects the associated parameters of the current position, then the automatic coil driving unit moves reversely to drive the wireless charging coil to move step by step along the reverse direction, the associated parameters are detected after each step of displacement, the step-by-step associated parameters are compared to obtain the position with the highest charging efficiency, and the wireless charging coil is kept at the position;
the wireless charging equipment is provided with a storage unit connected to the control module;
the wireless charging coil is gradually displaced from an initial position, after each displacement step, a charging efficiency associated parameter detection module is used for detecting associated parameters capable of reflecting the charging efficiency, and all position information and corresponding associated parameters of the wireless charging coil of the product to be charged are memorized in a storage unit;
when a product to be charged is placed next time, the wireless charging coil is still kept at the position with the highest charging efficiency of the last product to be charged;
a charging efficiency associated parameter detection module detects an associated parameter of a current position; if the correlation parameters and the corresponding positions of the correlation parameters are consistent with those of the highest charging efficiency stored in the last product to be charged, the wireless charging coil does not need to move; if the current position information of the wireless charging coil is consistent with the stored and memorized correlation parameter of the other product to be charged at the current position, directly displacing the wireless charging coil from the current position to the position with the highest charging efficiency of the other product to be charged; and if the information of all the products to be charged is inconsistent with the memorized information of all the products to be charged, enabling the wireless charging coil to return to the initial position, detecting the associated parameters of the current position, then, gradually displacing the wireless charging coil along the reverse direction, detecting the associated parameters, comparing the gradually associated parameters, obtaining the position with the highest charging efficiency of the product to be charged at this time, and memorizing and storing the information.
2. The method of claim 1, wherein the method further comprises: the first motor is a forward and reverse rotating motor, the wireless charging equipment is provided with a steering switch, and when the wireless charging coil displaces to the initial position along the forward direction, the steering switch is triggered, so that the forward and reverse rotating motor outputs the steering.
3. The method of claim 1, wherein the method further comprises: the correlation parameter is a conversion rate;
detecting the current conversion rate P1 of the wireless charging coil when the wireless charging coil is at the initial position; and then, controlling the wireless charging coil to move for a distance of T seconds/S from the initial position, detecting the current conversion rate P2, if P2> P1, continuing to move for the distance of T seconds/S in the current direction, detecting the current conversion rate Pn, if Pn = Pn-1, stopping the displacement, and if Pn < Pn-1, moving reversely for the distance of T seconds/S, and stopping the displacement.
4. The method of claim 1, wherein the method further comprises: the correlation parameter is a loss rate;
detecting the current loss rate M1 of the wireless charging coil when the wireless charging coil is at the initial position; and then, controlling the wireless charging coil to move for a distance of T seconds/S from the initial position, detecting the current loss rate M2, if M2 is less than M1, continuing to move for the distance of T seconds/S in the current direction, detecting the current loss rate Mn, if Mn = Mn-1, stopping displacement, and if Mn > Mn-1, moving reversely for the distance of T seconds/S, and stopping.
5. The method of claim 1, wherein the method further comprises: the wireless charging equipment is provided with a microswitch, when a product to be charged is put in, the microswitch is triggered to feed back a signal to the control module, and then the relevant parameters of the current position are detected.
6. The method of claim 5, wherein the method further comprises: the wireless charging equipment also comprises a clamping component used for clamping the placed product to be charged;
the clamping assembly comprises two lateral clamping pieces and a second motor for controlling the two lateral clamping pieces to be selectively clamped or loosened; the control module is connected to the second motor; when a product to be charged is put in, the microswitch is triggered, and the control module controls the second motor to work so that the lateral clamping piece is clamped tightly.
7. The method of claim 6, wherein the method further comprises: the second motor is connected with a second worm; one end of the second worm is connected with the second motor, and the other end of the second worm is provided with a column which is provided with a magnet; still be provided with hall sensor in wireless charging equipment's the casing, hall sensor detects the magnet and rotates the condition and feed back to control module.
8. The method of claim 6, wherein the method further comprises: the clamping assembly further comprises a bottom supporting piece, the microswitch is arranged on the bottom supporting piece, when a product to be charged is put in, the product to be charged is pressed against the bottom supporting piece, the microswitch is triggered, a signal is fed back to the control module, and then the control module controls the clamping action of the two lateral clamping pieces.
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| CN111934448B (en) * | 2020-07-23 | 2021-11-30 | 莆田市诺斯顿电子发展有限公司 | Wireless charging equipment |
| CN111884304B (en) * | 2020-07-23 | 2021-09-24 | 莆田市诺达电子发展有限公司 | Wireless charging efficiency improving method |
| CN112886723B (en) * | 2021-01-25 | 2023-06-23 | 晋城市龙鑫达光电科技有限公司 | Wireless charger capable of automatically positioning charging and implementation method |
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