WO2023246606A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2023246606A1
WO2023246606A1 PCT/CN2023/100338 CN2023100338W WO2023246606A1 WO 2023246606 A1 WO2023246606 A1 WO 2023246606A1 CN 2023100338 W CN2023100338 W CN 2023100338W WO 2023246606 A1 WO2023246606 A1 WO 2023246606A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
magnetic conductive
conductive part
electronic device
magnetic field
Prior art date
Application number
PCT/CN2023/100338
Other languages
English (en)
French (fr)
Inventor
秦源
Original Assignee
维沃移动通信有限公司
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 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2023246606A1 publication Critical patent/WO2023246606A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H01F2038/143—Inductive couplings for signals

Definitions

  • This application belongs to the field of communication technology, and specifically relates to an electronic device.
  • NFC Near Field Communication
  • the master device When the master device and the slave device communicate through NFC, the master device sets an active coil, and the slave device sets a passive coil.
  • the active coil is energized to generate a magnetic field, and the passive coil of the slave device is placed in the magnetic field and is excited to generate an induced current.
  • the induced current drives the slave device to work and realizes the communication connection between the master device and the slave device.
  • the mobile phone is the master device and the bus card reader is the slave device.
  • the bus card reader can identify the bus card information in the mobile phone.
  • the mobile phone is usually tilted relative to the bus card reader, that is, the mobile phone will not completely fit the bus card reader. This not only results in the distance between the active coil of the mobile phone and the bus card reader being insignificant.
  • the source coil is far away, and the passive coil cannot be perpendicular to the magnetic field of the active coil.
  • the effective magnetic field induced by the passive coil is the magnetic field generated in the direction perpendicular to the passive coil when the active coil is energized.
  • the magnetic field induced by the passive coil weakens, and the induced current decreases accordingly, which may not drive the bus card reader.
  • the bus card reader cannot read the bus card information in the mobile phone, that is, the communication connection between the master device and the slave device cannot be realized.
  • the purpose of the embodiments of the present application is to provide an electronic device that can solve the problem in the related art that the master device and the slave device are in a relatively tilted state, resulting in the inability to communicate between the master device and the slave device.
  • An embodiment of the present application provides an electronic device, including a device main body, a coil and a magnetic conductive part.
  • the coil and the magnetic conductive part are both provided on the device main body.
  • the magnetic conductive part includes a connected first magnetic conductive part. and a second magnetic conductive part. In the direction of the centerline of the coil, the orthographic projection of the first magnetic conductive part at least partially coincides with the orthographic projection of the coil.
  • the second magnetic conductive part is relative to the The outermost ring of the coil sticks out.
  • the coil can generate a magnetic field when it is energized, and the magnetic field located inside the coil is strong, while the magnetic field located outside the coil is weak.
  • the magnetic field can be guided with the help of the magnetic conductive member, because the magnetic field located on the center line of the coil In the direction, the orthographic projection of the first magnetic conductive part and the orthographic projection of the coil at least partially coincide, and the second magnetic conductive part protrudes relative to the outermost ring of the coil, so the first magnetic conductive part and the second magnetic conductive part pass through , can guide the magnetic field located in the coil to the outside of the coil, and the guided magnetic field forms a larger magnetic field area in the area corresponding to the magnetic conductive piece.
  • the magnetic field intensity in the coil is relatively large, the magnetic field intensity in the magnetic field area formed after magnetization is also relatively large. Moreover, because the magnetic field lines themselves are in a closed state, the direction of the magnetic field in the coil is not completely perpendicular to the coil. Then, the conduction The direction of the magnetic field in the magnetic field area formed after magnetization is not perpendicular to the coil, that is, the direction of the magnetic field is tilted relative to the coil.
  • the electronic device under the action of the magnetic conductive member, the electronic device forms a magnetic field area with a relatively large magnetic field intensity and a magnetic field direction that is tilted relative to the coil. Therefore, when the electronic device is close to the external device, even if the electronic device and the external device are in a relatively tilted state, The induction coil of the external device can be just perpendicular to the inclined magnetic field in the magnetic field area, so that the induction coil can effectively induce the magnetic field in the magnetic field area, increase the induced current of the induction coil, and then make the external device work, realizing the connection between the electronic device and the external device of pass Letter connection. Therefore, after adding magnetic conductive parts, even if the electronic device and the external device are tilted relative to each other, reliable communication connection between the two can be ensured.
  • Figure 1 is a schematic diagram of communication between a master device and a slave device in related technologies
  • Figure 2 is a schematic diagram of communication between the master device and the slave device disclosed in the embodiment of the present application;
  • Figure 3 is an exploded schematic diagram of the electronic device disclosed in the embodiment of the present application.
  • Figure 4 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application.
  • Figure 5 is a schematic structural diagram of the magnetic conductive member and coil disclosed in the embodiment of the present application.
  • Figure 6 is a schematic diagram of the magnetic field distribution of the coil in Figure 5;
  • Figure 7 is a schematic structural diagram of a coil and a magnetic conductive member disclosed in yet another embodiment of the present application.
  • Figure 8 is a schematic diagram of the magnetic field distribution of the coil in Figure 7;
  • Figure 9 is a schematic structural diagram of a coil and a magnetic conductive member disclosed in another embodiment of the present application.
  • Figure 10 is a schematic diagram of the magnetic field distribution of the coil in Figure 9;
  • Figure 11 is a schematic structural diagram of a magnetic conductive member and a coil disclosed in yet another embodiment of the present application.
  • Figure 12 is a schematic diagram of the magnetic field distribution of the coil in Figure 11;
  • Figure 13 is a schematic structural diagram of a coil disclosed in the related art.
  • Figure 14 is a schematic diagram of the impedance of the coil disclosed in the related art before loading the passive coil;
  • Figure 15 is a schematic diagram of the coil and the passive coil disclosed in the related art when they are communicated and connected;
  • Figure 16 is a schematic impedance diagram of a coil disclosed in the related art when communicating with a passive coil
  • Figure 17 is a schematic structural diagram of the coil and magnetic conductive member disclosed in the embodiment of the present application.
  • Figure 18 is a schematic impedance diagram of the coil disclosed in the embodiment of the present application before loading a passive coil
  • Figure 19 is a schematic diagram of the communication connection between the coil disclosed in the embodiment of the present application and the passive coil;
  • Figure 20 is a schematic impedance diagram of the coil disclosed in the embodiment of the present application when it is connected to a passive coil for communication.
  • 300-magnetic conductive part 310-first magnetic conductive part, 320-second magnetic conductive part, 330-gap, a-first magnetic conductive part, b-second magnetic conductive part, c-convex part,
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the figures so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in orders other than those illustrated or described herein, and that "first,” “second,” etc. are distinguished Objects are usually of one type, and the number of objects is not limited. For example, the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • an embodiment of the present application discloses an electronic device.
  • the electronic device includes a device host The main body 100, the coil 200 and the magnetically conductive part 300.
  • the device body 100 serves as the installation basis for the coil 200 and the magnetically conductive part 300.
  • the coil 200 can generate a magnetic field when energized, and the passive coil 710 of the external device 700 can generate a magnetic field under the influence of the magnetic field.
  • An induced current is generated under the action of excitation, so that the electronic device and the external device 700 can achieve near-field communication.
  • the electronic device may be a mobile phone, and the electronic device may have a hand holding area (shown as a dotted box in Figures 1 and 2).
  • the coil 200 and the magnetic conductive part 300 are both provided on the device body 100.
  • the magnetic conductive part 300 includes a connected first magnetic conductive part a and a second magnetic conductive part b.
  • the first magnetic conductive part a and the second magnetic conductive part Part b can be a separate molding structure, or both can be an integral molding structure.
  • the orthographic projection of the first magnetic conductive part a and the orthographic projection of the coil 200 at least partially coincide, and the second magnetic conductive part b extends relative to the outermost ring of the coil 200, that is to say, In the direction of the centerline of the coil 200 , at least part of the first magnetic conductive portion a is opposite to the coil 200 .
  • the orthographic projection of the first magnetically conductive part a may completely coincide with the orthographic projection of the coil 200; or, a part of the orthographic projection of the first magnetically conductive part a may coincide with the entire orthographic projection of the coil 200.
  • the third A part of the orthographic projection of the magnetic conductive part a may also overlap with a part of the orthographic projection of the coil 200 .
  • the direction of the center line of the coil 200 is perpendicular to the plane on which the coil 200 is located.
  • the second magnetic conductive part b protrudes relative to the outermost ring of the coil 200, and the extended length of the second magnetic conductive part b can be greater than the first preset value to ensure that the formed gradient magnetic field region 800 is relatively large. large to prevent the gradient magnetic field area 800 from being too small.
  • the first preset value may be 5mm.
  • the extension length of the second magnetic conductive part b can also be less than the second preset value, and the second preset value is greater than the first preset value, so as to avoid the formed gradient magnetic field area 800 from being too large and guiding the limited magnetic field to a relatively large area.
  • a large gradient magnetic field area 800 will weaken the magnetic field in the area where effective communication can be performed, which is not conducive to the communication connection between the electronic device and the external device 700 .
  • the coil 200 can generate a magnetic field when it is energized, and the magnetic field inside the coil 200 is strong, while the magnetic field outside the coil 200 is weak. With the help of the magnetic conductive member 300, the magnetic field can be guided, because in the direction of the center line of the coil 200 On the top, the orthographic projection of the first magnetic conductive part a and the orthographic projection of the coil 200 at least partially overlap, and the second magnetic conductive part b extends relative to the outermost ring of the coil 200, so the first magnetic conductive part a and the second magnetic conductive part b extend The magnetic conductive part b can transfer the magnetic field located in the coil 200 to the outside of the coil 200 The guided magnetic field forms a larger magnetic field area in the area corresponding to the magnetic conductive member 300 .
  • the magnetic field intensity in the coil 200 is relatively large, the magnetic field intensity in the magnetic field area formed after the magnetization is also relatively large; and, because the magnetic field lines themselves are in a closed state, the direction of the magnetic field in the coil 200 is not completely perpendicular to the coil 200. Then, the direction of the magnetic field in the magnetic field area formed after magnetization is not perpendicular to the coil 200 , that is, the direction of the magnetic field is tilted relative to the coil 200 , and this area is the inclined magnetic field area 800 .
  • the electronic device forms a magnetic field area with a relatively large magnetic field intensity and a magnetic field direction inclined relative to the coil 200. Therefore, when the electronic device is close to the external device 700, even if the electronic device and the external device 700 are in a In the relative tilt state, the passive coil 710 of the external device 700 can be just perpendicular to the tilted magnetic field in the magnetic field area, so that the passive coil 710 can effectively induce the magnetic field in the magnetic field area, increase the induced current of the passive coil 710, and thereby cause the external
  • the device 700 works to realize communication connection between the electronic device and the external device 700 . Therefore, after adding the magnetic conductive member 300, even if the electronic device and the external device 700 are tilted relative to each other, reliable communication connection between the two can be ensured.
  • FIGS. 14 and 16 respectively show schematic diagrams of the impedance change of the coil 200 disclosed in the related art before and after loading a load
  • FIGS. 18 and 20 respectively show schematic diagrams of the impedance change of the coil 200 disclosed in the embodiment of the present application before and after loading a load.
  • the loaded load refers to the situation when the electronic device communicates with the external device 700 , that is, when the coil 200 of the present application communicates with the passive coil 710 of the external device 700 .
  • the impedance of the coil 200 matches the impedance of the excitation source of the device body 100.
  • the impedance of the coil 200 changes and does not match the impedance of the excitation source, which reduces the performance of the electronic device. Work performance.
  • the magnetic conductive part 300 is not added, and the impedance change of the coil 200 before and after loading a load is large.
  • the magnetic conductive part 300 is added, and the impedance change of the coil 200 before and after loading is small.
  • the impedance stability is improved, thus avoiding an excessive mismatch between the impedance of the coil 200 and the excitation source impedance of the device body 100 during near field communication, and ensuring the working performance of the electronic device to a certain extent.
  • the magnetic conductive member 300 may be ferrite.
  • the magnetically conductive member 300 has a sheet-like structure, and the sheet-like structure intersects the plane where the coil 200 is located, but in this way, since the magnetically conductive member 300 The tilted arrangement relative to the coil 200 results in a smaller gradient magnetic field area 800 formed after the magnetic permeable member 300 conducts magnetism, making it inconvenient to implement communication connections between the electronic device and the external device 700 . Therefore, in one embodiment, the sheet structure is parallel to the plane where the coil 200 is located, and the gradient magnetic field area 800 formed by the magnetic permeability component 300 is relatively large, which requires the relative position of the electronic device and the external device 700 in the communication state. lowered to facilitate the communication connection between the electronic device and the external device 700 .
  • the first magnetically conductive part a is not in contact with the coil 200. Since the magnetic field at the position of the coil 200 is relatively strong, the magnetic field at the position further away from the coil 200 is weaker, and the first magnetically conductive part a There is a certain distance from the coil 200, so the magnetic conductive member 300 cannot guide the magnetic field at the position of the coil 200. What the magnetic conductive member 300 guides is the weaker magnetic field at a position farther away from the coil 200, so the final formed The magnetic field of the gradient magnetic field region 800 is also weak, which is not conducive to realizing the communication connection between the electronic device and the external device 700 . Therefore, in one embodiment, the first magnetic conductive part a is in contact with the coil 200. In this way, the magnetic conductive member 300 can guide a stronger magnetic field at the position of the coil 200, and the magnetic field of the gradient magnetic field region 800 finally formed is also relatively strong. Strong, conducive to realizing the communication connection between the electronic device and the external device 700.
  • the innermost ring of the coil 200 surrounds a hollow area 210 .
  • the orthographic projection of the first magnetically conductive part a and the direction of the hollow area 210 do not overlap.
  • the magnetic field guided by the first magnetic conductive part a is limited to the magnetic field in the area opposite to the coil 200, and the magnetic field in this area is weaker than the magnetic field in the central area of the coil 200, so in the end
  • the magnetic field of the formed gradient magnetic field region 800 is weak, and the gradient magnetic field region 800 is easily affected by the reverse magnetic field region 900 outside the coil 200 , resulting in a small gradient magnetic field region 800 , which is not conducive to the realization of the connection between the electronic device and the external device 700 . communication connections between. Therefore, in one embodiment, as shown in FIG.
  • the orthographic projection of the first magnetic conductive part a is at least partially located within the orthographic projection of the hollow area 210 , that is to say, the third A part of the orthographic projection of the first magnetic conductive part a is located within the orthographic projection of the coil 200 , and the other part of the orthographic projection of the first magnetic conductive part a is located within the orthographic projection of the hollow area 210 .
  • the hollow area 210 is the center area of the coil 200, so the first magnetic conductive part a can guide the magnetic field in the hollow area 210.
  • the final formed gradient magnetic field area 800 has a stronger magnetic field and avoids reverse magnetic fields outside the coil 200. Region 900 versus gradient magnetic field region 800 The effect of increasing the gradient magnetic field area 800 is beneficial to realizing the communication connection between the electronic device and the external device 700 .
  • the orthographic projection of the hollow area 210 may be located within the orthographic projection of the first magnetic conductive part a, or, as shown in Figure 7, the hollow area A part of the orthographic projection of 210 may be located within the orthographic projection of the first magnetic conductive part a.
  • the first magnetic conductive part a is provided with a protruding part c, and the protruding part c extends into the hollow area 210 .
  • the protruding portion c is provided on the side of the first magnetic conductive portion a facing the coil 200 .
  • the raised portion c and the first magnetic conductive portion a are integrally formed.
  • the raised portion c can be made of ferrite and has a magnetic conductive effect; the raised portion c can cooperate with the innermost ring of the coil 200 , that is, the raised portion c is embedded in the hollow area 210 .
  • the raised portion c may not match the innermost side of the coil 200 , and the structure of the raised portion c is not limited here. Since the first magnetic conductive part a extends into the hollow area 210 through the protruding part c, the first magnetic conductive part a can guide the stronger magnetic field at the center of the hollow area 210 and further increase the formed gradient magnetic field area 800 The magnetic field strength is conducive to realizing the communication connection between the electronic device and the external device 700 .
  • the number of the magnetic conductive parts 300 may be one, or the number of the magnetic conductive parts 300 may be at least two, and the outermost ring of each magnetic conductive part 300 with respect to the coil 200 is different from the coil 200 . The position extends beyond coil 200. In this way, each magnetically conductive member 300 conducts magnetism in different directions of the coil 200 to form different gradient magnetic field areas 800, increasing the gradient magnetic field area 800, and ensuring that even if the electronic device is tilted relative to the external device 700 in different directions, The two communicate reliably.
  • the number of the magnetic conductive parts 300 is two, namely the first magnetic conductive part 310 and the second magnetic conductive part 320 .
  • the second magnetic conductive part of the first magnetic conductive part 310 b and the second magnetic conductive part b of the second magnetic conductive member 320 are respectively located on two sides of the coil 200 that are far away from each other.
  • the orthographic projection of the first magnetic conductive part a of the first magnetic conductive member 310 and the orthographic projection of the first magnetic conductive part a of the second magnetic conductive member 320 are at least partially aligned. Located within the orthographic projection of the hollow area 210. As shown in FIG.
  • the two sides of the coil 200 that are far away from each other form a gradient magnetic field area 800 respectively, increasing the gradient magnetic field area. 800, even if the electronic device is tilted relative to the external device 700 in two opposite directions, reliable communication connection between the two can be ensured. Moreover, since the two gradient magnetic field areas 800 are far away from each other, they will not affect each other, and generally a larger gradient magnetic field area 800 can be ensured.
  • a part of the orthographic projection of the first magnetic conductive part a of the first magnetic conductive part 310 and a part of the first magnetic conductive part a of the second magnetic conductive part 320 A part of the orthographic projection is located within the orthographic projection of the hollow area 210, and the sum of the areas of the orthographic projections of each first magnetic conductive part a is half of the area of the orthographic projection of the hollow area 210.
  • the gradient magnetic field can be ensured
  • the relatively large magnetic field intensity in the region 800 can prevent the first magnetic conductive portion a from covering the coil 200 in a large area and thereby having a large impact on the impedance of the coil 200 .
  • the first magnetic conductive part a of the first magnetic conductive part 310 is in contact with the second magnetic conductive part b of the second magnetic conductive part 320 , that is, the first magnetic conductive part of the first magnetic conductive part 310 There is no gap 330 between a and the second magnetic conductive part b of the second magnetic conductive member 320. Then, the magnetic field in the central area of the coil 200 passes through the magnetic conductive member 300 and will be interfered by the magnetic conductive member 300, affecting the center. The magnetic field distribution and magnetic field intensity in the area will further affect the gradient magnetic field area 800 formed after the magnetic conductive member 300 is magnetically conductive, which is not conducive to the communication connection between the electronic device and the external device 700 .
  • the innermost ring of the coil 200 surrounds the hollow area 210, and there is a gap 330 between the first magnetic conductive part a of the first magnetic conductive member 310 and the first magnetic conductive part a of the second magnetic conductive member 320. , the gap 330 is opposite to the hollow area 210.
  • the magnetic field in the central area of the coil 200 can pass through the gap 330, preventing the magnetic field from directly passing through the first magnetic conductive part a and being interfered by the first magnetic conductive part a, thereby ensuring that the magnetic field formed after the magnetic conduction is
  • the magnetic field intensity of the gradient magnetic field region 800 is beneficial to the communication connection between the electronic device and the external device 700 .
  • the orthographic projection of the coil 200 is located within the orthographic projection of all the magnetic conductive members 300, that is, each magnetic conductive member 300 cooperates to cover the entire coil 200, and the magnetic conductive members 300 cooperate with each other to cover the entire coil 200.
  • the components 300 can guide more magnetic fields located in the coil 200 to the outside of the coil 200. However, in this way, the coverage area of each magnetic conductive component 300 is larger, and the impact on the coil 200 will also be greater.
  • the coil 200 is loaded The impedance changes before and after the load is large, which is not conducive to the stability of the impedance.
  • part of the orthographic projection of the coil 200 is located outside the orthographic projection of all the magnetic conductive members 300, that is, each magnetic conductive member 300 cooperates to cover the coil 200. part. In this way, the coverage area of the magnetic conductive member 300 is prevented from being too large, so that the impedance change of the coil 200 before and after loading the load is maintained within a certain range, ensuring the impedance stability of the coil 200 .
  • the coil 200 has a first size in a first direction and a second size in a second direction.
  • the first size is larger than the second size, so the first direction means that the size of the coil 200 is relatively larger.
  • the extending direction of the first magnetic conductive part a may intersect with the first direction, or the first magnetic conductive part a may extend along the first direction.
  • the coil 200 may be a rectangular coil, the first direction may be the length direction of the rectangular coil, the second direction may be the width direction of the rectangular coil, and the first magnetic conductive part a extends along the length direction of the rectangular coil; the coil 200 may also be It is a circular coil, and the structure of the coil 200 is not limited.
  • the first magnetic conductive part a extends in the direction in which the size of the coil 200 is relatively large, indicating that the first magnetic conductive part a is in the first direction.
  • the upward size is larger, which can guide more magnetic fields, and then guide more magnetic fields outside the coil 200 to form the gradient magnetic field area 800. Therefore, the magnetic field intensity of the gradient magnetic field area 800 increases, which is beneficial to electronic equipment and external equipment. Communication connections between 700.
  • the two ends of the first magnetic conductive part a are the first end and the second end respectively, and the two ends of the second magnetic conductive part b are the third end and the second end respectively.
  • the four ends, the first end and the third end can be set in a staggered position, and the second end and the fourth end can also be set in a staggered position.
  • the extension length of the first magnetic conductive part a is greater than the extension length of the second magnetic conductive part b.
  • the extension length of the first magnetic conductive part a is smaller than that of the second magnetic conductive part a.
  • the extension length of part b then, since the area corresponding to the second magnetic conductive part b is larger, it is difficult to form the gradient magnetic field area 800 in some areas of the second magnetic conductive part b. In short, no matter what the situation, misalignment will cause The magnetic field uniformity of the gradient magnetic field region 800 is poor.
  • the first end and the third end are connected and aligned, and the second end and the fourth end are connected and aligned, which means that in the first direction of the coil 200, the extension length of the first magnetic conductive part a is equal to the third end.
  • the extension length of the second magnetic conductive part b then, no matter where the magnetic field is guided by the first magnetic conductive part a, the magnetic field can be guided to the corresponding area of the second magnetic conductive part b to form the gradient magnetic field region 800, thereby improving the gradient magnetic field Magnetic field uniformity in area 800.
  • the coil 200 has a rectangular structure, and the coil 200 includes two transverse extension sections and two longitudinal extension sections, wherein the two transverse extension sections are parallel, the two longitudinal extension sections are parallel, and the two transverse extension sections are parallel.
  • the two longitudinal extension sections are connected end to end to form a rectangular structure.
  • the extension direction of the longitudinal extension section is the length direction of the coil 200, that is, the first magnetic conductive portion a extends along the extension direction of the longitudinal extension section, and the first magnetic conductive section a extends along the extension direction of the longitudinal extension section.
  • the first end and the second end of the part a are respectively aligned with the inner sides of the two transverse extension sections, and the third end and the fourth end of the second magnetic conductive part b are also respectively aligned with the inner sides of the two transverse extension sections.
  • the first magnetic conductive part a can cover the hollow area 210 to a large extent, so the first magnetic conductive part a can further guide more magnetic fields, and thereby guide more magnetic fields to the coil.
  • a gradient magnetic field region 800 is formed outside 200, so the magnetic field intensity of the gradient magnetic field region 800 increases, which is beneficial to the communication connection between the electronic device and the external device 700.
  • the electronic device may also include a substrate 400 and a shield 500.
  • the substrate 400 and the shield 500 are both installed on the device body 100, that is, the substrate 400 and the shield 500 are installed on the device body 100.
  • 400 has a first surface and a second surface opposite to each other.
  • the coil 200 is disposed on the first surface of the substrate 400 .
  • the shielding member 500 is disposed on the second surface of the substrate 400 .
  • the magnetic conductive member 300 is located on the side of the coil 200 away from the substrate 400 .
  • the substrate 400 can be a main board, and the main board and the coil 200 are electrically connected, so that the main board supplies power to the coil 200;
  • the shield 500 can be a ferrite film, and under the action of the shield 500, the device body 100 is prevented from being damaged.
  • Other components affect coil 200.
  • the base plate 400 provides an installation foundation for the coil 200 and the magnetic conductive member 300 , and the shielding member 500 shields the coil 200 from external influences, creating a suitable working environment for the coil 200 .
  • the electronic device further includes a camera 600.
  • the camera 600 is disposed on the top of the device body 100, and the camera 600 and the second magnetic conductive part b are arranged along the third direction.
  • the direction is perpendicular to the arrangement direction of the first magnetic conductive part a and the second magnetic conductive part b.
  • the arrangement direction of the first magnetic conductive part a and the second magnetic conductive part b may be the second direction mentioned above, and the third direction may be the first direction mentioned above.
  • the coil 200 is a rectangular coil
  • the arrangement direction of the first magnetic conductive part a and the second magnetic conductive part b is the width direction of the rectangular coil
  • the third direction is the length direction of the rectangular coil.
  • the magnetic conductive member 300 and the camera 600 are located on the top of the device body 100. In this way, the camera 600 and the second magnetic conductive part b are arranged adjacent to each other to avoid the installation position of the camera 600 being in contact with the magnetic conductive member 300 If the installation position conflicts, the camera 600 and the magnetic conductive member 300 will not easily affect each other, while ensuring the imaging performance of the camera 600 and the magnetic conductive performance of the magnetic conductive member 300.
  • the electronic device disclosed in the embodiment of the present invention may be a smart phone, a tablet computer, an e-book reader or a wearable device.
  • the electronic device can also be other devices, and the embodiment of the present invention does not limit this.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

本申请公开一种电子设备，涉及通信技术领域，电子设备包括设备主体、线圈和导磁件，线圈和导磁件均设于设备主体，导磁件包括相连的第一导磁部和第二导磁部，在线圈的中心线所在方向上，第一导磁部的正投影与线圈的正投影至少部分重合，第二导磁部相对于线圈的最外圈伸出。

Description

电子设备
交叉引用
本发明要求在2022年06月21日提交中国专利局、申请号为202210702513.1、发明名称为“电子设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请属于通信技术领域，具体涉及一种电子设备。
背景技术
近场通信技术(Near Field Communication，NFC)目前已广泛应用于手机等电子设备上，手机的NFC功能可以充当公交卡、门禁卡、饭卡等，让用户的日常生活更为便捷。
主设备和从设备之间通过NFC进行通信时，主设备设置有源线圈，从设备设置无源线圈，有源线圈通电产生磁场，从设备的无源线圈置于磁场中被激励产生感应电流，感应电流驱动从设备工作，实现主设备和从设备之间的通信连接。
以手机和公交读卡器为例，手机为主设备，公交读卡器为从设备，公交读卡器能够识别手机内的公交卡信息。但是，用户在握持手机的状态下刷卡时，手机通常相对公交读卡器处于倾斜状态，即手机不会完全贴合公交读卡器，这不但导致手机的有源线圈距离公交读卡器的无源线圈较远，而且，无源线圈无法垂直于有源线圈的磁场，而无源线圈所感应的有效磁场为有源线圈通电时在垂直于无源线圈的方向上所产生的磁场，因此，这样一来，无源线圈所感应的磁场减弱，感应电流随之减小，进而可能无法驱动公交读卡器 工作，公交读卡器无法读取手机内的公交卡信息，即无法实现主设备和从设备之间的通信连接。
发明内容
本申请实施例的目的是提供一种电子设备，能够解决相关技术中主设备和从设备处于相对倾斜状态导致主设备与从设备之间无法通信的问题。
本申请实施例提供一种电子设备，包括设备主体、线圈和导磁件，所述线圈和所述导磁件均设于所述设备主体，所述导磁件包括相连的第一导磁部和第二导磁部，在所述线圈的中心线所在方向上，所述第一导磁部的正投影与所述线圈的正投影至少部分重合，所述第二导磁部相对于所述线圈的最外圈伸出。
在本申请实施例中，线圈在通电状态下能够产生磁场，且位于线圈内的磁场较强，位于线圈外的磁场较弱，借助导磁件，能够对磁场进行导向，由于在线圈的中心线所在方向上，第一导磁部的正投影与线圈的正投影至少部分重合，且第二导磁部相对于线圈的最外圈伸出，故通过第一导磁部和第二导磁部，能够将位于线圈内的磁场向线圈之外引导，引导之后的磁场在导磁件所对应的区域形成一个较大的磁场区域。由于线圈内的磁场强度较大，故导磁后形成的磁场区域的磁场强度也较大；而且，由于磁力线本身处于闭合状态，故位于线圈内的磁场方向并未完全垂直于线圈，那么，导磁后形成的磁场区域内的磁场方向也并非垂直于线圈，即磁场方向相对于线圈处于倾斜状态。
如此设置，在导磁件的作用下，电子设备形成一个磁场强度较大且磁场方向相对于线圈倾斜的磁场区域，故在电子设备靠近外部设备时，即使电子设备与外部设备处于相对倾斜状态，外部设备的感应线圈正好能够垂直于磁场区域内的倾斜的磁场，使感应线圈有效感应磁场区域内的磁场，增大感应线圈的感应电流，进而使外部设备工作，实现电子设备与外部设备之间的通 信连接。因此，增加导磁件后，即使电子设备与外部设备相对倾斜，也能够保证两者可靠地通信连接。
附图说明
图1为相关技术中主设备和从设备的通信示意图；
图2为本申请实施例公开的主设备和从设备的通信示意图；
图3为本申请实施例公开的电子设备的分解示意图；
图4为本申请实施例公开的电子设备的结构示意图；
图5为本申请实施例公开的导磁件与线圈的结构示意图；
图6为图5中线圈的磁场分布示意图；
图7为本申请又一实施例公开的线圈与导磁件的结构示意图；
图8为图7中线圈的磁场分布示意图；
图9为本申请另一实施例公开的线圈与导磁件的结构示意图；
图10为图9中线圈的磁场分布示意图；
图11为本申请再一实施例公开的导磁件与线圈的结构示意图；
图12为图11中线圈的磁场分布示意图；
图13为相关技术中公开的线圈的结构示意图；
图14为相关技术中公开的线圈在加载无源线圈前的阻抗示意图；
图15为相关技术中公开的线圈与无源线圈通信连接时的示意图；
图16为相关技术中公开的线圈在与无源线圈通信连接时的阻抗示意图；
图17为本申请实施例公开的线圈与导磁件的结构示意图；
图18为本申请实施例公开的线圈在加载无源线圈前的阻抗示意图；
图19为本申请实施例公开的线圈与无源线圈通信连接时的示意图；
图20为本申请实施例公开的线圈在与无源线圈通信连接时的阻抗示意图。
附图标记说明：
100-设备主体；
200-线圈、210-中空区域、
300-导磁件、310-第一导磁件、320-第二导磁件、330-间隙、a-第一导磁部、b-第二导磁部、c-凸起部、
400-基板、
500-屏蔽件、
600-摄像头、
700-外部设备、710-无源线圈；
800-倾斜磁场区域、
900-反向磁场区域。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的电子设备进行详细地说明。
参考图1-图20，本申请实施例公开一种电子设备，电子设备包括设备主 体100、线圈200和导磁件300，其中，设备主体100作为线圈200和导磁件300的安装基础，线圈200可在通电情况下产生磁场，外部设备700的无源线圈710能够在磁场的激励作用下产生感应电流，以使电子设备与外部设备700实现近场通信。电子设备可以为手机，电子设备可以具有手部握持区域(如图1和图2中的虚线框所示)。
线圈200和导磁件300均设于设备主体100，导磁件300包括相连的第一导磁部a和第二导磁部b，可选地，第一导磁部a和第二导磁部b可以为分体成型结构，二者也可以为一体成型结构。在线圈200的中心线所在方向上，第一导磁部a的正投影与线圈200的正投影至少部分重合，第二导磁部b相对于线圈200的最外圈伸出，也就是说，在线圈200的中心线所在方向上，第一导磁部a的至少部分与线圈200相对。可选地，第一导磁部a的正投影可以与线圈200的正投影完全重合；或者，第一导磁部a的正投影的一部分可以与线圈200的整个正投影相重合，当然，第一导磁部a的正投影的一部分也可以与线圈200的正投影的一部分相重合。其中，线圈200的中心线所在方向与线圈200所在的平面相垂直。
需要说明的是，第二导磁部b相对于线圈200的最外圈伸出，第二导磁部b的伸出长度可以大于第一预设值，以保证所形成的倾斜磁场区域800较大，避免倾斜磁场区域800过小。可选地，第一预设值可以为5mm。而且，第二导磁部b的伸出长度还可以小于第二预设值，第二预设值大于第一预设值，避免所形成的倾斜磁场区域800过大，有限的磁场引导至较大的倾斜磁场区域800内反而会减弱可进行有效通信的区域内的磁场，不利于电子设备与外部设备700之间的通信连接。
线圈200在通电状态下能够产生磁场，且位于线圈200内的磁场较强，位于线圈200外的磁场较弱，借助导磁件300，能够对磁场进行导向，由于在线圈200的中心线所在方向上，第一导磁部a的正投影与线圈200的正投影至少部分重合，且第二导磁部b相对于线圈200的最外圈伸出，故通过第一导磁部a和第二导磁部b，能够将位于线圈200内的磁场向线圈200之外 引导，引导之后的磁场在导磁件300所对应的区域形成一个较大的磁场区域。由于线圈200内的磁场强度较大，故导磁后形成的磁场区域的磁场强度也较大；而且，由于磁力线本身处于闭合状态，故位于线圈200内的磁场方向并未完全垂直于线圈200，那么，导磁后形成的磁场区域内的磁场方向也并非垂直于线圈200，即磁场方向相对于线圈200处于倾斜状态，该区域即为倾斜磁场区域800。
如此设置，在导磁件300的作用下，电子设备形成一个磁场强度较大且磁场方向相对于线圈200倾斜的磁场区域，故在电子设备靠近外部设备700时，即使电子设备与外部设备700处于相对倾斜状态，外部设备700的无源线圈710正好能够垂直于磁场区域内的倾斜的磁场，使无源线圈710有效感应磁场区域内的磁场，增大无源线圈710的感应电流，进而使外部设备700工作，实现电子设备与外部设备700之间的通信连接。因此，增加导磁件300后，即使电子设备与外部设备700相对倾斜，也能够保证两者可靠地通信连接。
图14和图16分别示出相关技术中公开的线圈200在加载负载前后的阻抗变化示意图，图18和图20分别示出本申请实施例公开的线圈200在加载负载前后的阻抗变化示意图。其中，加载负载即指电子设备与外部设备700进行通信连接的情况，也就是本申请的线圈200与外部设备700的无源线圈710通信时的情况。在未加载负载时，线圈200的阻抗与设备主体100的激励源的阻抗相匹配，而在加载负载后，线圈200的阻抗会发生变化，进而与激励源阻抗不相匹配，降低了电子设备的工作性能。根据图13-图20可知，相关技术中未增设导磁件300，线圈200在加载负载前后的阻抗变化较大，而本申请增设导磁件300，线圈200在加载负载前后的阻抗变化较小，阻抗稳定性提高，如此，避免在近场通讯时线圈200的阻抗与设备主体100的激励源阻抗的失配程度过大，在一定程度上保证电子设备的工作性能。
在本实施例中，导磁件300可以为铁氧体。可选地，导磁件300为片状结构，片状结构与线圈200所在的平面相交，但这样一来，由于导磁件300 相对线圈200倾斜设置，导致导磁件300导磁后形成的倾斜磁场区域800较小，不便于实现电子设备与外部设备700之间的通信连接。故，一种实施例中，片状结构与线圈200所在的平面相平行，导磁件300导磁后形成的倾斜磁场区域800较大，对通信状态下电子设备与外部设备700的相对位置要求降低，方便实现电子设备与外部设备700之间的通信连接。
在可选的实施例中，第一导磁部a与线圈200未接触，由于线圈200所在位置处的磁场较强，距离线圈200越远的位置的磁场越弱，而第一导磁部a与线圈200之间具有一定的距离，故导磁件300无法引导线圈200所在位置处的磁场，导磁件300所引导的为距离线圈200较远的位置处较弱的磁场，故最终形成的倾斜磁场区域800的磁场也较弱，不利于实现电子设备与外部设备700之间的通信连接。故，一种实施例中，第一导磁部a与线圈200相接触，如此，导磁件300能够引导线圈200所在位置处的较强的磁场，最终形成的倾斜磁场区域800的磁场也较强，有利于实现电子设备与外部设备700之间的通信连接。
在可选的实施例中，如图9所示，线圈200的最内圈围成中空区域210，在线圈200的中心线所在方向上，第一导磁部a的正投影与中空区域210的正投影不相重合，此时，第一导磁部a所引导的磁场仅限于与线圈200相对的区域内的磁场，而该区域的磁场与线圈200的中心区域的磁场相比较弱，故最终形成的倾斜磁场区域800的磁场较弱，而且，倾斜磁场区域800易受到线圈200之外的反向磁场区域900的影响，导致倾斜磁场区域800较小，不利于实现电子设备与外部设备700之间的通信连接。故，一种实施例中，如图7所示，在线圈200的中心线所在方向上，第一导磁部a的正投影至少部分位于中空区域210的正投影之内，也就是说，第一导磁部a的正投影的一部分位于线圈200的正投影内，第一导磁部a的正投影的另一部分位于中空区域210的正投影之内。中空区域210即为线圈200的中心区域，故第一导磁部a能够引导中空区域210内的磁场，最终形成的倾斜磁场区域800的磁场较强，而且，避免线圈200之外的反向磁场区域900对倾斜磁场区域800 的影响，增大倾斜磁场区域800，有利于实现电子设备与外部设备700之间的通信连接。
可选地，在线圈200的中心线所在方向上，如图5所示，中空区域210的正投影可以位于第一导磁部a的正投影之内，或者，如图7所示，中空区域210的正投影的一部分可以位于第一导磁部a的正投影之内。
在本方案中，如图3所示，第一导磁部a设有凸起部c，凸起部c伸入中空区域210内。具体地，凸起部c设置在第一导磁部a朝向线圈200的一侧。可选地，凸起部c与第一导磁部a为一体成型结构，凸起部c可以为铁氧体，并且具备导磁效果；凸起部c可以与线圈200的最内圈相互配合，即凸起部c嵌入中空区域210内，当然，凸起部c也可以与线圈200的最内侧不相配合，此处对凸起部c的结构不做限制。由于第一导磁部a通过凸起部c伸入中空区域210内，故第一导磁部a能够引导中空区域210的中心位置处的较强磁场，进一步增大所形成的倾斜磁场区域800的磁场强度，有利于实现电子设备与外部设备700之间的通信连接。
在可选的实施例中，导磁件300的数量可以为一个，或者，导磁件300的数量为至少两个，且各导磁件300相对于线圈200的最外圈由线圈200的不同位置伸出至线圈200之外。如此一来，各导磁件300分别在线圈200的不同方位导磁形成不同的倾斜磁场区域800，增大倾斜磁场区域800，即使电子设备在不同的方向上相对外部设备700倾斜，也能够保证两者可靠地通信连接。
在本实施例中，如图11所示，导磁件300的数量为两个，分别为第一导磁件310和第二导磁件320，第一导磁件310的第二导磁部b和第二导磁件320的第二导磁部b分别位于线圈200的相互远离的两侧。可选地，在线圈200的中心线所在方向上，第一导磁件310的第一导磁部a的正投影和第二导磁件320的第一导磁部a的正投影均至少部分位于中空区域210的正投影之内。结合图12所示可知，在第一导磁件310和第二导磁件320的作用下，线圈200的相互远离的两侧分别形成倾斜磁场区域800，增大倾斜磁场区域 800，即使电子设备在相反的两个方向上相对外部设备700倾斜，也能保证两者可靠地通信连接。而且，由于两个倾斜磁场区域800相互远离，故两者之间不会相互影响，总体上能保证较大的倾斜磁场区域800。
在进一步的实施例中，在线圈200的中心线所在方向上，第一导磁件310的第一导磁部a的正投影的一部分和第二导磁件320的第一导磁部a的正投影的一部分位于中空区域210的正投影之内，而且，各第一导磁部a的正投影的面积之和为中空区域210的正投影的面积的一半，此时，既能保证倾斜磁场区域800较大的磁场强度，又能避免第一导磁部a较大面积地覆盖线圈200而对线圈200的阻抗产生较大影响。
在可选的实施例中，第一导磁件310的第一导磁部a和第二导磁件320的第二导磁部b接触，即第一导磁件310的第一导磁部a和第二导磁件320的第二导磁部b之间未留有间隙330，那么，线圈200的中心区域的磁场均经过导磁件300，会被导磁件300所干扰，影响中心区域的磁场分布和磁场强度，进而对导磁件300导磁后所形成的倾斜磁场区域800产生影响，不利于电子设备与外部设备700之间的通信连接。故，一种实施例中，线圈200的最内圈围成中空区域210，第一导磁件310的第一导磁部a与第二导磁件320的第一导磁部a具有间隙330，间隙330与中空区域210相对，此时线圈200的中心区域的磁场可以经过间隙330，避免磁场直接经过第一导磁部a而被第一导磁部a干扰，进而保证导磁后所形成的倾斜磁场区域800的磁场强度，有利于电子设备与外部设备700之间的通信连接。
在可选的实施例中，在线圈200的中心线所在方向上，线圈200的正投影位于所有导磁件300的正投影之内，即各导磁件300共同配合覆盖整个线圈200，导磁件300能够将位于线圈200内的更多的磁场引导至线圈200之外，但这样一来，各导磁件300的覆盖面积较大，对线圈200的影响也会较大，线圈200在加载负载前后的阻抗变化较大，不利于阻抗的稳定性。因此，一种实施例中，在线圈200的中心线所在方向上，线圈200的部分正投影位于所有导磁件300的正投影之外，即各导磁件300共同配合覆盖线圈200的 一部分。如此，避免导磁件300的覆盖面积过大，使线圈200在加载负载前后的阻抗变化维持在一定范围内，保证线圈200的阻抗稳定性。
在可选的实施例中，线圈200在第一方向上具有第一尺寸，在第二方向上具有第二尺寸，第一尺寸大于第二尺寸，故第一方向指线圈200的尺寸相对比较大的方向，在本实施例中，第一导磁部a的延伸方向可以与第一方向相交，或者，第一导磁部a沿第一方向延伸。可选地，线圈200可以为矩形线圈，第一方向可以为矩形线圈的长度方向，第二方向为矩形线圈的宽度方向，第一导磁部a沿矩形线圈的长度方向延伸；线圈200也可以为圆形线圈，对线圈200的结构不做限制，无论线圈200为何种结构，第一导磁部a沿线圈200的尺寸相对比较大的方向延伸，说明第一导磁部a在第一方向上的尺寸较大，从而能够引导更多的磁场，进而将更多的磁场引导至线圈200之外形成倾斜磁场区域800，故倾斜磁场区域800的磁场强度增大，有利于电子设备与外部设备700之间的通信连接。
一种实施例中，在线圈200的第一方向上，第一导磁部a的两端分别为第一端和第二端，第二导磁部b的两端分别为第三端和第四端，第一端与第三端可以错位设置，第二端与第四端也可以错位设置。可选地，在线圈200的第一方向上，第一导磁部a的延伸长度大于第二导磁部b的延伸长度，那么，由于第二导磁部b对应的区域较小，第一导磁部a的一些位置所引导的磁场容易聚集在第二导磁部b的某个区域；或者，在线圈200的第一方向上，第一导磁部a的延伸长度小于第二导磁部b的延伸长度，那么，由于第二导磁部b对应的区域较大，第二导磁部b的某些区域较难形成倾斜磁场区域800，总之，无论何种情况，错位设置会导致倾斜磁场区域800的磁场均匀性较差。故，一种实施例中，第一端与第三端相连且对齐，第二端和第四端相连且对齐，说明在线圈200的第一方向，第一导磁部a的延伸长度等于第二导磁部b的延伸长度，那么，无论第一导磁部a的何位置所引导的磁场，均能够将磁场引导至第二导磁部b的对应区域形成倾斜磁场区域800，提高倾斜磁场区域800的磁场均匀性。
在本实施例中，线圈200呈矩形结构，线圈200包括两个横向延伸段和两个纵向延伸段，其中，两个横向延伸段相平行，两个纵向延伸段相平行，两个横向延伸段与两个纵向延伸段首尾依次连接，以形成矩形结构，纵向延伸段的延伸方向为线圈200的长度方向，即第一导磁部a沿纵向延伸段的延伸方向延伸，而且，第一导磁部a的第一端和第二端分别与两个横向延伸段的内侧对齐，第二导磁部b的第三端和第四端也分别与两个横向延伸段的内侧对齐。如此，在线圈200的长度方向上，第一导磁部a能够较大程度地覆盖中空区域210，故第一导磁部a能够进一步引导较多的磁场，进而将更多的磁场引导至线圈200之外形成倾斜磁场区域800，故倾斜磁场区域800的磁场强度增大，有利于电子设备与外部设备700之间的通信连接。
在本方案中，如图3所示，电子设备还可以包括基板400和屏蔽件500，基板400和屏蔽件500均设于设备主体100，即基板400和屏蔽件500安装于设备主体100，基板400具有相背的第一表面和第二表面，线圈200设置在基板400的第一表面，屏蔽件500设于基板400的第二表面，导磁件300位于线圈200背离基板400的一侧。可选地，基板400可以为主板，主板与线圈200之间电连接，以使主板对线圈200供电；屏蔽件500可以为铁氧体膜，在屏蔽件500的作用下，避免设备主体100的其它部件对线圈200产生影响。通过基板400为线圈200和导磁件300提供安装基础，通过屏蔽件500为线圈200屏蔽外界影响，为线圈200创造适宜的工作环境。
在可选的实施例中，如图4所示，电子设备还包括摄像头600，摄像头600设于设备主体100的顶部，且摄像头600与第二导磁部b沿第三方向排布，第三方向垂直于第一导磁部a和第二导磁部b的排布方向。可选地，第一导磁部a和第二导磁部b的排布方向可以为上文中的第二方向，第三方向可以为上文中的第一方向。在线圈200为矩形线圈的情况下，第一导磁部a和第二导磁部b的排布方向为矩形线圈的宽度方向，第三方向为矩形线圈的长度方向，导磁件300和摄像头600均位于设备主体100的顶部。如此，摄像头600与第二导磁部b相邻设置，避免摄像头600的设置位置与导磁件300 的设置位置冲突，摄像头600与导磁件300不容易相互影响，同时保证摄像头600的摄像性能和导磁件300的导磁性能。
本发明实施例所公开的电子设备可以为智能手机、平板电脑、电子书阅读器或可穿戴设备。当然，该电子设备也可以是其他设备，本发明实施例对此不做限制。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (11)

  1. 一种电子设备，其中，包括设备主体(100)、线圈(200)和导磁件(300)，所述线圈(200)和所述导磁件(300)均设于所述设备主体(100)，所述导磁件(300)包括相连的第一导磁部(a)和第二导磁部(b)，在所述线圈(200)的中心线所在方向上，所述第一导磁部(a)的正投影与所述线圈(200)的正投影至少部分重合，所述第二导磁部(b)相对于所述线圈(200)的最外圈伸出。
  2. 根据权利要求1所述的电子设备，其中，所述第一导磁部(a)与所述线圈(200)相接触。
  3. 根据权利要求1所述的电子设备，其中，所述线圈(200)的最内圈围成中空区域(210)，在所述线圈(200)的中心线所在方向上，所述第一导磁部(a)的正投影至少部分位于所述中空区域210)的正投影之内。
  4. 根据权利要求3所述的电子设备，其中，所述第一导磁部(a)设有凸起部(c)，所述凸起部(c)伸入所述中空区域(210)内。
  5. 根据权利要求1所述的电子设备，其中，所述导磁件(120)的数量为两个，分别为第一导磁件(310)和第二导磁件(320)，所述第一导磁件(310)的第二导磁部(b)和所述第二导磁件(320)的第二导磁部(b)分别位于所述线圈(200)的相互远离的两侧。
  6. 根据权利要求5所述的电子设备，其中，所述线圈(200)的最内圈围成中空区域(210)，所述第一导磁件(310)的第一导磁部(a)与所述第二导磁件(320)的第一导磁部(a)之间具有间隙(330)，所述间隙(330)与所述中空区域(210)相对。
  7. 根据权利要求1所述的电子设备，其中，在所述线圈(200)的中心线所在方向上，所述线圈(200)的部分正投影位于所有所述导磁件(300)的正投影之外。
  8. 根据权利要求1所述的电子设备，其中，所述线圈(200)在第一方向上具有第一尺寸，在第二方向上具有第二尺寸，所述第一尺寸大于第二尺 寸，所述第一导磁部(a)沿所述第一方向延伸。
  9. 根据权利要求8所述的电子设备，其中，在所述第一方向上，所述第一导磁部(a)的两端分别为第一端和第二端，所述第二导磁部(b)的两端分别为第三端和第四端，所述第一端与所述第三端相连且对齐，所述第二端和所述第四端相连且对齐。
  10. 根据权利要求1所述的电子设备，其中，所述电子设备还包括基板(400)和屏蔽件(500)，所述基板(400)和所述屏蔽件(500)均设于所述设备主体(100)，所述基板(400)具有相背的第一表面和第二表面，所述线圈(200)设于所述基板(400)的第一表面，所述屏蔽件(500)设于所述基板(400)的第二表面，所述导磁件(300)位于所述线圈(200)背离所述基板(400)的一侧。
  11. 根据权利要求1所述的电子设备，其中，所述电子设备还包括摄像头(600)，所述摄像头(600)设于所述设备主体(100)的顶部，且所述摄像头(600)与所述第二导磁部(b)沿第三方向排布，所述第三方向垂直于所述第一导磁部(a)和所述第二导磁部(b)的排布方向。
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