CN110768386A - Wireless charging power receiving unit, coil alignment method and implantable medical device - Google Patents

Wireless charging power receiving unit, coil alignment method and implantable medical device Download PDF

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Publication number
CN110768386A
CN110768386A CN201910915474.1A CN201910915474A CN110768386A CN 110768386 A CN110768386 A CN 110768386A CN 201910915474 A CN201910915474 A CN 201910915474A CN 110768386 A CN110768386 A CN 110768386A
Authority
CN
China
Prior art keywords
power receiving
coil
electromagnet
receiving unit
connecting rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910915474.1A
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Chinese (zh)
Inventor
王哲
贺凡波
陆钧
葛俊杰
马俊超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Invispower Co Ltd
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Beijing Invispower Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Invispower Co Ltd filed Critical Beijing Invispower Co Ltd
Priority to CN201910915474.1A priority Critical patent/CN110768386A/en
Publication of CN110768386A publication Critical patent/CN110768386A/en
Pending legal-status Critical Current

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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00025—Operational features of endoscopes characterised by power management
    • A61B1/00027—Operational features of endoscopes characterised by power management characterised by power supply
    • A61B1/00029—Operational features of endoscopes characterised by power management characterised by power supply externally powered, e.g. wireless
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/041—Capsule endoscopes for imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/273—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
    • A61B1/2736—Gastroscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36036—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of the outer, middle or inner ear
    • A61N1/36038—Cochlear stimulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/378—Electrical supply
    • A61N1/3787—Electrical supply from an external energy source
    • 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

Abstract

The invention discloses a wireless charging power receiving unit, a coil alignment method and an implanted medical device, wherein the power receiving unit comprises: fixing the disc; the coil group is rotationally connected with the fixed disc through a connecting rod; the driving device is arranged on the fixed disc and drives the connecting rod to rotate relative to the fixed disc; and the controller is in signal connection with the driving device and controls the driving device to work. The wireless charging power receiving unit and the coil alignment method applied to the power receiving unit can adjust the coil of the power receiving unit to the optimal position and realize high-efficiency wireless power transmission with the power transmission coil. The implantable medical device with the power receiving unit can realize high-efficiency charging of the medical device in vivo.

Description

Wireless charging power receiving unit, coil alignment method and implantable medical device
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless charging power receiving unit, a coil alignment method and implantable medical equipment.
Background
The common technical scheme of wireless charging is to adopt two coils, and realize the wireless transmission of electric energy through principles such as electromagnetic induction, electromagnetic resonance. One of the two coils is a power supply coil, and the other is a power receiving coil, and in order to ensure the efficiency of power transmission, the two coils need to be aligned.
When equipment such as cell-phone, wrist-watch are wirelessly charged, can artifical adjustment phase position to guarantee that two coils align. For some devices which are not easy to move, when wireless charging is used, the problem of how to align the coils to improve the power supply efficiency is faced.
Disclosure of Invention
The invention provides a wireless charging power receiving unit, a coil alignment method and implanted medical equipment, which are used for realizing automatic alignment of coils and ensuring charging efficiency. For implantable medical devices, the need for charging efficiency can be met.
The wireless charging power receiving unit of the present invention includes: fixing the disc; the coil group is rotationally connected with the fixed disc through a connecting rod; the driving device is arranged on the fixed disc and drives the connecting rod to rotate relative to the fixed disc; and the controller is in signal connection with the driving device and controls the driving device to work.
Preferably, the coil group is composed of a first power receiving coil and a second power receiving coil, and a coil plane of the first power receiving coil and a coil plane of the second power receiving coil are perpendicular to each other.
Preferably, the first power receiving coil and the second power receiving coil are respectively and fixedly connected with the connecting rod; or, the first power receiving coil and the second power receiving coil are connected to each other, and one of the first power receiving coil and the second power receiving coil is fixedly connected to the connecting rod.
Preferably, the coil assembly is composed of a plurality of power receiving coils, the plurality of power receiving coils form a spherical structure, or the plurality of power receiving coils form an arc structure.
Preferably, the driving means includes: the device comprises a first electromagnet, a second electromagnet and a magnetic swing rod; the first electromagnet and the second electromagnet are arranged on the fixed disc at intervals, and the angle between the first electromagnet and the second electromagnet is less than 180 degrees; the magnetic swing rod is fixedly connected to the connecting rod, is positioned between the first electromagnet and the second electromagnet and is driven by magnetic adsorption of the first electromagnet and the second electromagnet; the first electromagnet and the second electromagnet are also respectively communicated with the controller.
Preferably, the first electromagnet and the second electromagnet are arranged at 90 degrees.
Preferably, the driving means includes: a gear plate and a gear bar; the gear disc is fixedly arranged on the connecting rod, the gear rod is meshed with the gear disc and driven by the motor, and the motor is further communicated with the controller.
The coil alignment method of the present invention includes: detecting the electric parameter value of the coil group at any time, and when the electric parameter value does not accord with a preset value, driving the coil group to rotate in a first direction by a driving device; when the value of the electric parameter changes towards the preset value, the electric parameter continues to rotate in the first direction until the value meets the preset value; when the value of the electrical parameter changes away from the predetermined value, the electrical parameter is rotated in a second direction until the predetermined value is met.
The implantable medical device of the present invention comprises: the wireless charging device comprises a shell, a workpiece arranged in the shell and the wireless charging power receiving unit, wherein the power receiving unit is arranged in the shell.
The wireless charging power receiving unit and the coil alignment method applied to the power receiving unit can adjust the coil of the power receiving unit to the optimal position and realize high-efficiency wireless power transmission with the power transmission coil. The implantable medical device with the power receiving unit can realize high-efficiency charging of the medical device in vivo.
Drawings
Fig. 1 is a schematic structural diagram of a wireless charging power receiving unit according to the present invention;
FIG. 2 is a schematic diagram of another structure of a wireless charging power receiving unit according to the present invention;
FIG. 3 is a schematic diagram of another structure of a wireless charging power receiving unit according to the present invention;
fig. 4 is a schematic view of an implantable medical device of the present invention.
Reference numerals:
fixed disc 1, coil group 2, connecting rod 3, driving device 4, first power receiving coil 21, second power receiving coil 22, first electromagnet 41, second electromagnet 42, magnetic swing rod 43, gear disc 44, gear rod
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
The invention provides a wireless charging power receiving unit, which is hereinafter referred to as a power receiving unit. The power receiving unit is an operating unit in a charged device in wireless charging. The function is to receive electric energy in a wireless electric energy transmission mode.
The power receiving unit includes: the coil assembly comprises a fixed disc 1, a coil assembly 2, a connecting rod 3, a driving device 4 and a controller. Of course, other components such as connecting circuits, compensation networks, capacitors, etc., should also be necessary. Other necessary components and parts are known to those skilled in the field of wireless charging, and are not described in detail herein.
The respective components are explained below.
The stationary plate 1 can be understood as a carrier unit which can be used to fix the connecting rods 3, but also the drive means 4 and the control device can be arranged on the stationary plate 1. Other components, which are not described in detail herein, can likewise be provided on the stationary disk 1. For example, a storage battery for wireless charging, may be provided on the fixed disk 1.
And the coil group 2 comprises coils. The coil assembly 2 is a set of power receiving coils, that is, one or more power receiving coils form the coil assembly 2. When charging is required, wireless power transmission is performed between the power receiving coil in the coil assembly 2 and the power transmitting coil on the power supply device.
The coil assembly 2 is rotatably connected with the fixed disc 1 through the connecting rod 3, generally, the coil assembly 2 is fixedly connected with the connecting rod 3, and the connecting rod 3 is rotatably connected with the fixed disc 1, so that the rotation of the coil assembly 2 is realized. The controller controls the driving device 4 to work, and the driving device 4 is used for driving the connecting rod 3 to rotate, so that the coil assembly 2 is driven to move.
The purpose of the movement of the coil assembly 2 is to adjust the orientation of the power receiving coil included therein to meet the position correspondence requirement between the power receiving coil and the power transmitting coil. The two (power transmission coil and power receiving coil) are in corresponding positions, which generally means that the coil planes are opposite to each other and the effective working area is the largest. The coil plane mentioned here is to be understood as the equivalent working plane of the coil, with the efficiency of the transmission of radio energy being greatest when the working planes are arranged opposite one another.
In addition, it should be noted that the purpose of the link 3 is to connect the coil assembly 2 and enable rotation, so the link 3 may be a part of the coil assembly 2, or the link 3 may be a part of the power receiving coil, and directly led out from the winding of the power receiving coil to be used as the link 3. It is not excluded that the rod 3 and the coil assembly 2 are two separate parts, fixed together by injection welding, gluing or the like.
The controller is in signal connection with the driving device 4 and controls the driving device 4 to work. The signal transmission can be realized through wired connection or wireless connection.
The reason why the coil assembly 2 needs to be rotated to adjust the orientation is that in some special devices, such as robots that can be implanted into the human body, for example, gastroscopic robots, endoscopes, etc., the orientation is not fixed during their operation, and when they are charged, the efficiency of wireless power supply can be improved by adjusting the orientation of the coil assembly 2. The robot implanted in the human body is used only as an example to explain the reason why the coil assembly 2 rotates. And is not limited to use in this field. In other fields, the reason why the coil assembly 2 is rotated can be explained similarly when the position of the power receiving unit may not be fixed, or the power transmitting unit is not easily moved.
Next, the arrangement of the power receiving coil in the coil assembly 2 will be described.
First form of coil assembly 2:
may be composed of a first power receiving coil 21 and a second power receiving coil 22, the coil plane of the first power receiving coil 21 and the coil plane of the second power receiving coil 22 being perpendicular to each other. For convenience of description, the direction shown in the drawings is taken as an example, and is divided into a vertically arranged coil and a horizontally arranged coil. And which specific horizontal setting and which vertical setting of first powered coil 21 and second powered coil 22 do not necessarily influence the realization of this application scheme, and the technical personnel in the art can adjust according to the actual setting requirement. In this specification, for convenience of explanation, the power receiving coil closer to the stationary platen 1 is referred to as a first power receiving coil 21, and the power receiving coil relatively distant from the stationary platen 1 is referred to as a second power receiving coil 22.
As can be understood by referring to fig. 1, the first power receiving coil 21 is disposed vertically and the second power receiving coil 22 is disposed horizontally, whereas fig. 2 is opposite to fig. 1 in that the first power receiving coil 21 is disposed horizontally and the second power receiving coil 22 is disposed vertically.
In this arrangement, the horizontally arranged power receiving coil may correspond to the position of the line feeding coil in the vertical direction, that is, the power feeding coils arranged above and below, and more efficient wireless power transmission may be performed by the horizontally arranged power receiving coil. And the power transmission coil is in the circumferential direction (with connecting rod 3 position center pin), so through the rotation of connecting rod 3, can make the vertical receiving coil who sets up rotate, realize vertical receiving coil and power transmission coil through rotating and correspond, realize more efficient wireless power transmission.
For the coil assembly 2 having the first power receiving coil 21 and the second power receiving coil 22, the first power receiving coil 21 and the second power receiving coil 22 may be fixedly connected to the rod 3, respectively, as shown in fig. 2, and the first power receiving coil 21 and the second power receiving coil 22 are connected to the rod 3, respectively. As shown in fig. 1, the first power receiving coil 21 and the second power receiving coil 22 are connected to each other, and one of them is fixedly connected to the link 3.
Second form of coil assembly 2:
the coil assembly 2 is composed of a plurality of power receiving coils, and the plurality of power receiving coils may form a spherical structure. In this way, the power receiving coil is arranged in a spherical structure, so that the working surface of the power receiving coil has more orientations, and when the power transmitting coil is arranged at any position during charging, the corresponding power receiving coil can be arranged at the highest working efficiency.
The third coil set 2 is in the form:
the coil assembly 2 is composed of a plurality of power receiving coils, and the plurality of power receiving coils form an arc-shaped structure. In the form shown in fig. 3, the arc-shaped structure may be a series of power receiving coils, each power receiving coil is angularly offset in orientation, and multiple directions of adjustment can be achieved in combination with the driving of the connecting rod 3. This plurality of coils forms an arc-shaped structure, similar to the principle of the first mode, in which two vertically arranged power receiving coils are arranged. Through the arc setting of a plurality of receiving coil, can cover more directions, and send the cooperation of electric coil more accurate.
The driving device 4 is explained below. The function of the drive means 4 is to drive the rotation of the link 3, so the drive means 4 can have various configurations. The simplest mechanism is to use a motor, an output shaft of the motor is connected with a driving connecting rod 3, and the driving rod 3 is directly driven to move by the rotation of the motor. Instead of being directly connected to the connecting rod 3 for driving, the motor may be in the form of a gear plate 44 and a gear rod 45 as shown in fig. 2 and 3. The gear disc 44 is fixedly arranged on the connecting rod 3, the gear rod 45 is meshed with the gear disc 44 and driven by a motor, and the motor is also communicated with the controller.
The driving device 4 is also configured to consider the use position of the power receiving unit, for example, when the power receiving unit is used in a large-sized, conveniently-movable device such as an automobile, the driving device 4 can be driven by a motor, and the motor is more convenient and faster to use and is easy to maintain.
The requirement of reducing the size of the equipment as much as possible is one of the requirements when the equipment is used for small-sized equipment, such as a capsule robot and the like. Therefore, a structure of the driving device 4, which is small in size, using the electromagnetic adsorption driving will be described below.
The drive device 4 has a first electromagnet 41, a second electromagnet 42 and a magnetic rocker 43.
The first electromagnet 41 and the second electromagnet 42 are arranged on the fixed disc 1 at intervals, and the angle between the first electromagnet and the second electromagnet is less than 180 degrees; the magnetic swing rod 43 is fixedly connected to the connecting rod 3, and the magnetic swing rod 43 is positioned between the first electromagnet 41 and the second electromagnet 42 and is driven by the magnetic force of the first electromagnet 41 and the second electromagnet 42; the first electromagnet 41 and the second electromagnet 42 are also respectively communicated with the controller.
The first electromagnet 41 and the second electromagnet 42 are controlled by a controller to be switched on and off, and the controller controls one of the electromagnets to be electrified so as to generate a magnetic field to adsorb the magnetic swing rod 43 and drive the connecting rod 3.
Preferably, the first electromagnet 41 and the second electromagnet 42 are arranged at 90 degrees therebetween. In combination with the first and third coil sets 2, the coil set 2 only needs to rotate 90 degrees, so that all directions of the power receiving coil in the circumferential direction can be oriented, and the power receiving coil is already arranged in a fixed mode in the vertical direction.
A coil alignment method for the above-described power receiving unit for wireless charging is described below. That is, the power receiving coil in the coil assembly 2 is oriented so as to be aligned with the power transmitting coil.
The method detects the electric parameter value of the coil group from time to time and compares the electric parameter value with a preset value. The electrical parameters refer to parameters that can help determine the efficiency of receiving power by the power receiving coil in the electromagnetic effect, such as inductance, quality factor (Q value), power, and the like. When the positions of the power receiving coil and the power generating coil are well matched, these values may be within predetermined values, for example, when the positions of the power receiving coil and the power generating coil are completely matched, the power on the power receiving coil side is larger than the power when the two are not aligned.
The predetermined value of the electrical parameter may be a point of value or a range of values. In the case of the alignment by rotating the coil assembly 2 by means of the above-mentioned drive means 4, the electrical parameter value will change in a manner close to the predetermined value during the rotational alignment. It cannot be directly described as "becoming larger" or "becoming smaller" because some electrical parameters are at the maximum when the power receiving coil and the power generating coil are completely corresponding in position, some electrical parameters are at the minimum, for example, the power on the power receiving coil side is at the maximum, and the power difference between the power receiving coil side and the power transmitting coil side is at the minimum. Therefore, the adjustment is made to be "close" or "far" from a predetermined value as a regulation process. The above-mentioned electrical parameter is a reaction to the mutual inductance, and the more the two coils are aligned, the higher the mutual inductance.
If the electrical parameter value of the coil group detected from time to time is the same as the predetermined value or within the range of the predetermined value, it is determined that the power transmission coil and the power reception coil are aligned, and no adjustment is required.
When the electric parameter value does not accord with the preset value, the driving coil group of the driving device rotates in the first direction, the electric parameter value is detected at all times while the driving coil group rotates in the first direction, and if the electric parameter value changes to be close to the preset value, the driving coil group continues to rotate in the first direction until the electric parameter value accords with the preset value. That is, when rotating in the first direction, it is a process in which the power receiving coil is gradually aligned with the power transmitting coil. When the electric parameter value changes to a value far away from the preset value in the first direction, the electric parameter value changes to rotate in a second direction until the preset value is met. This means that rotation in the first direction makes the alignment between the two coils less effective, and rotation in the second direction enables better alignment. The first direction and the second direction are opposite directions.
An implantable medical device is described below, and referring to fig. 4, the implantable medical device includes a housing 0, a workpiece disposed in the housing 0, and a wirelessly charged power receiving unit as described above, which of course uses the above-described coil alignment method, and the power receiving unit is disposed in the housing 0.
Such implantable medical devices are typically capsule robots, such as capsule gastroscopes, swallowable endoscopes and the like. It can also be used as pacemaker or hearing aid. Fig. 4 shows the housing 0 as an example, but does not limit the specific structure thereof.
They have used the power receiving unit, can carry out wireless charging, consequently reduced the number of times of changing the battery, compare and need to change the battery, use charging technology, can be appropriate reduce battery size, and then reduce the size of equipment, because when can not charging, need guarantee the operating power sufficient, probably will increase the size of battery, and can charge and then solve the problem of battery size.
Meanwhile, the wireless charging mode is used, the connection of some leads can be reduced, for example, a cardiac pacemaker needs to be provided with a connecting wire penetrating through the skin, and the penetration through the skin can be reduced if the wireless charging mode is used.
It should be noted, however, that the implantable medical device mentioned herein is to realize its wireless charging and coil alignment during wireless charging through the power receiving unit and coil alignment method. The medical device is implanted into a human body for use, and the working principle of the implanted medical device is not the problem to be solved by the application.
The workpiece disposed in the housing 0 refers to a working portion of an implantable medical device, such as an endoscope, and includes a camera, etc.
It should be understood that the power receiving unit can be used in an implantable medical device because the volume can be made small enough to be used in small components. The coil assembly described above may be formed on a PCB board by etching, for example. Meanwhile, the power receiving unit can be used in large-scale equipment, and parts such as the coil group and the like can be selected according to actual needs.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.

Claims (9)

1. A wirelessly charged power receiving unit, comprising:
a fixed disc (1);
the coil group (2) is rotationally connected with the fixed disc (1) through a connecting rod (3);
the driving device (4) is arranged on the fixed disc (1) and drives the connecting rod (3) to rotate relative to the fixed disc (1);
and the controller is in signal connection with the driving device (4) and controls the driving device (4) to work.
2. The wirelessly charged power receiving unit according to claim 1,
the coil group (2) is composed of a first power receiving coil (21) and a second power receiving coil (22), and the coil plane of the first power receiving coil (21) and the coil plane of the second power receiving coil (22) are perpendicular to each other.
3. The wirelessly charged power receiving unit according to claim 2,
the first power receiving coil (21) and the second power receiving coil (22) are respectively and fixedly connected with the connecting rod (3); alternatively, the first and second electrodes may be,
the first power receiving coil (21) and the second power receiving coil (22) are connected to each other, and one of them is fixedly connected to the link (3).
4. The wirelessly charged power receiving unit according to claim 1,
the coil group (2) is composed of a plurality of power receiving coils, and the plurality of power receiving coils form a spherical structure or form an arc-shaped structure.
5. The wirelessly charged power receiving unit according to claim 1,
the drive device (4) comprises: a first electromagnet (41), a second electromagnet (42) and a magnetic swing rod (43);
the first electromagnet (41) and the second electromagnet (42) are arranged on the fixed disc (1) at intervals, and the angle between the first electromagnet and the second electromagnet is less than 180 degrees;
the magnetic swing rod (43) is fixedly connected to the connecting rod (3), and the magnetic swing rod (43) is located between the first electromagnet (41) and the second electromagnet (42) and is driven by the magnetic force of the first electromagnet (41) and the second electromagnet (42);
the first electromagnet (41) and the second electromagnet (42) are also respectively communicated with the controller.
6. The wirelessly charged power receiving unit according to claim 5,
the first electromagnet (41) and the second electromagnet (42) are arranged at an angle of 90 degrees.
7. The wirelessly charged power receiving unit according to claim 1,
the drive device (4) comprises: a gear disc (44) and a gear rod (45);
the gear disc (44) is fixedly arranged on the connecting rod (3), the gear rod (45) is meshed with the gear disc (44) and driven by a motor, and the motor is further communicated with the controller.
8. A coil alignment method for a power receiving unit wirelessly charged according to any one of claims 1 to 7, comprising:
detecting the electric parameter value of the coil group at any time, and when the electric parameter value does not accord with a preset value, driving the coil group to rotate in a first direction by a driving device;
when the value of the electric parameter changes towards the preset value, the electric parameter continues to rotate in the first direction until the value meets the preset value;
when the value of the electrical parameter changes away from the predetermined value, the electrical parameter is rotated in a second direction until the predetermined value is met.
9. An implantable medical device, comprising:
-a housing (0), -a working piece arranged within the housing (0), and-a wirelessly charged power receiving unit according to any of claims 1-7, which power receiving unit is arranged within the housing (0).
CN201910915474.1A 2019-09-26 2019-09-26 Wireless charging power receiving unit, coil alignment method and implantable medical device Pending CN110768386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910915474.1A CN110768386A (en) 2019-09-26 2019-09-26 Wireless charging power receiving unit, coil alignment method and implantable medical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910915474.1A CN110768386A (en) 2019-09-26 2019-09-26 Wireless charging power receiving unit, coil alignment method and implantable medical device

Publications (1)

Publication Number Publication Date
CN110768386A true CN110768386A (en) 2020-02-07

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Application Number Title Priority Date Filing Date
CN201910915474.1A Pending CN110768386A (en) 2019-09-26 2019-09-26 Wireless charging power receiving unit, coil alignment method and implantable medical device

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112886724A (en) * 2021-03-01 2021-06-01 南通大学 Unmanned aerial vehicle wireless charging coil position alignment device and method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112886724A (en) * 2021-03-01 2021-06-01 南通大学 Unmanned aerial vehicle wireless charging coil position alignment device and method thereof
CN112886724B (en) * 2021-03-01 2021-11-09 南通大学 Unmanned aerial vehicle wireless charging coil position alignment device and method thereof

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