Search

KR-20260064414-A - ELECTRONIC DEVICE INCLUDING HALL SENSOR

KR20260064414AKR 20260064414 AKR20260064414 AKR 20260064414AKR-20260064414-A

Abstract

According to various embodiments, the electronic device may include a housing comprising a first surface, a second surface facing the first surface, and a side surrounding the space between the first surface and the second surface; a battery disposed in the space; a wireless charging coil disposed between the battery and the second surface in the space; a processor comprising a processing circuit; a first printed circuit board on which the processor is disposed; a second printed circuit board electrically connected to the battery and the first printed circuit board and disposed within a recess space in which the battery is fixed; and at least one Hall sensor disposed on the second printed circuit board and adjacent to the wireless charging coil, configured to detect a magnetic force generated by a magnetic member attached to the second surface from the outside of the electronic device. Various other embodiments may be possible.

Inventors

  • 주완재
  • 임태준
  • 나효석
  • 정기영
  • 최하나
  • 홍석기

Assignees

  • 삼성전자주식회사

Dates

Publication Date
20260507
Application Date
20241209
Priority Date
20241031

Claims (20)

  1. In the electronic device (101), A housing (210) comprising a first surface (210A), a second surface (210B) facing the first surface (210A), and a side (210C) surrounding the space between the first surface (210A) and the second surface (210B); A battery (450) placed in the above space; A wireless charging coil (530) disposed between the battery (450) and the second surface in the above space; A processor (120) including a processing circuit; A first printed circuit board (341) on which the above processor (120) is placed; A second printed circuit board (510) electrically connected to the battery (450) and the first printed circuit board (341) and disposed within a recess space where the battery (450) is fixed; and An electronic device comprising: at least one Hall sensor (511) disposed on the second printed circuit board (510), disposed adjacent to the wireless charging coil (530), and configured to detect a magnetic force generated by a magnetic member (520) attached to the second surface from the outside of the electronic device (101).
  2. In Article 1, The above magnetic member (520) is an electronic device included in an accessory cover that is mounted in a manner that is at least partially disposed on the second surface (210B) of the housing (210).
  3. In Article 2, The above magnetic member (520) is an electronic device implemented in at least a partial annular shape surrounding the wireless charging coil (530) along the outboard side of the wireless charging coil (530).
  4. In Article 2, The above magnetic member (520) is an electronic device positioned so as not to overlap with the wireless charging coil (530) when the second surface (210B) is viewed from the outside.
  5. In Article 2, The above at least one Hall sensor (511) is an electronic device disposed on the second printed circuit board (510) based on an area where the magnetic member (520) and the second printed circuit board (510) overlap at least partially when the second surface (210B) is viewed from the outside.
  6. In Article 5, The wireless charging coil sheet further comprises a wireless charging coil (530) disposed between the at least one Hall sensor (511) and the second surface (210B). An electronic device having at least one opening (823) formed in the wireless charging coil sheet so that the at least one Hall sensor (511) is visually visible when viewed with respect to the second surface (210B).
  7. In Article 6, The above wireless charging coil sheet is an electronic device in which the at least one opening (823) is formed based on an area corresponding to the location where the at least one Hall sensor (511) is placed.
  8. In Article 6, The second printed circuit board (510) comprises a front surface (5101) positioned toward the first surface (210A) of the housing (210), and a rear surface (5102) positioned toward the second surface (210B) of the housing (210). The above at least one Hall sensor (511) is an electronic device that is at least partially disposed on the rear surface (5102) of the second printed circuit board (510).
  9. In Article 1, The second printed circuit board (510) is an electronic device positioned at least partially along the outer side of the battery (450), centered on the battery (450).
  10. In Article 2, A communication circuit (190) for communication with an external charging device attached to the accessory cover through the magnetic member (520); A processor (120) including a processing circuit; and It further includes memory (130) for storing instructions, When the above instructions are executed individually or collectively by the processor (120), the electronic device (101) is made to, An electronic device that performs a wireless charging function based on the magnetic member (520) in response to a situation where the above external charging device is attached to the above accessory cover.
  11. In Article 10, When the above instructions are executed individually or collectively by the processor (120), the electronic device (101) is made to, An electronic device that recognizes that the magnetic member is attached to the second surface based on the at least one Hall sensor (511).
  12. In Article 10, When the above instructions are executed individually or collectively by the processor (120), the electronic device (101) is made to, Detecting the magnetic member (520) included in the accessory cover based on the above at least one Hall sensor (511), and An electronic device that performs the wireless charging function based on a first wireless charging method based on the magnetic member (520) in response to detection of the magnetic member (520).
  13. In Article 12, The above-mentioned first wireless charging method is an electronic device including a magnetic power profile (MPP) charging method.
  14. In Article 12, When the above instructions are executed individually or collectively by the processor (120), the electronic device (101) is made to, In response to a situation where the external charging device is attached based on the magnetic member (520), charging power generated based on the first wireless charging method is obtained from the external charging device through the wireless charging coil (530), and An electronic device that charges the battery (450) based on the above-mentioned acquired charging power.
  15. In Article 11, When the above instructions are executed individually or collectively by the processor (120), the electronic device (101) is made to, Detecting that the magnetic member (520) is not positioned based on the above at least one Hall sensor (511), and An electronic device that performs the wireless charging function based on the second wireless charging method when the above magnetic member (520) is not present.
  16. In Article 15, The above second wireless charging method is an electronic device including an EPP (extended power profile) charging method.
  17. In Article 11, When the above instructions are executed individually or collectively by the processor (120), the electronic device (101) is made to, When performing the above wireless charging function, charging power according to the wireless charging method is requested from the external charging device through the communication circuit (190), and An electronic device that charges the battery (450) based on the charging power supplied from the external charging device.
  18. In Article 17, When the above instructions are executed individually or collectively by the processor (120), the electronic device (101) is made to, Based on the above wireless charging coil (530), the charging power generated by the transmitting coil of the external charging device is received, and An electronic device that charges the battery (450) based on the received charging power.
  19. In Article 1, It further includes a rear cover (211) corresponding to the second surface (210B) of the housing (210), and The above Hall sensor (511) is an electronic device that is at least partially disposed on the second printed circuit board (510) based on an area where the second printed circuit board (510) overlaps with a portion area corresponding to a magnetic member (520) included in the rear cover (211).
  20. In the electronic device (101), A first housing comprising a first surface, a second surface opposite to the first surface, and a side surface surrounding the space between the first surface and the second surface; A second housing that is foldably coupled to the first housing through a hinge device; A battery disposed in the space of the first housing above; A wireless charging coil disposed between the battery and the second surface within the space of the first housing; A processor including a processing circuit; A first printed circuit board on which the above processor is placed; A second printed circuit board electrically connected to the battery and the first printed circuit board and disposed within a recess space in which the battery is fixed; and An electronic device comprising: at least one Hall sensor disposed on the second printed circuit board and disposed adjacent to the wireless charging coil, configured to detect a magnetic force generated by a magnetic member attached to the second surface from the outside of the electronic device.

Description

Electronic device including a hall sensor An embodiment of the present disclosure relates to an electronic device comprising a magnetic sensor. Recently, electronic devices have been becoming increasingly smaller, while their functions have been becoming increasingly diverse. Consequently, electrical components embedded in electronic devices can be positioned with increasingly narrow spacing from surrounding structures, and various methods are being sought to efficiently arrange each electrical component. Electronic devices can perform wireless charging or contactless charging functions using wireless power transfer technology. Wireless power transfer technology is a technology that converts electrical energy into electromagnetic waves with frequency and transmits energy wirelessly to a load (e.g., an external electronic device) without transmission lines. Wireless power transfer technology may be a technology in which power is wirelessly transmitted from a power transmitting device to a power receiving device (e.g., an electronic device) without a connection via a separate connector between the power receiving device (e.g., an electronic device) and the power transmitting device (e.g., an external charging device), thereby charging the battery of the power receiving device. Wireless power transfer technology may include magnetic induction and magnetic resonance methods, and may also include various other types of wireless power transfer technology. The information described above may be provided as background art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in relation to the present disclosure. A magnetic induction wireless power transmission system transmits power using a magnetic field induced in a coil. By utilizing the magnetic field generated from the current flowing through the transmitting coil, an electromotive force can be generated in the receiving coil to induce a current. Energy can be supplied from a power transmitting device (e.g., an external charging device) to a power receiving device (e.g., an electronic device). Based on the energy supplied from the power transmitting device, the power receiving device can perform a wireless charging function for a battery. According to one embodiment, the electronic device may support a magnetic power profile (MPP) charging method based on the wireless charging standard Qi2. For example, in the MPP charging method, alignment between the transmitting coil and the receiving coil is important, and to this end, the transmitting coil of the power transmitting device and the receiving coil of the power receiving device need to be positioned in an accurate position relative to each other. For example, the MPP charging method may support a high-speed charging function of approximately 15W under the condition that the transmitting coil and the receiving coil are aligned at a set position using a magnetic member. According to one embodiment, an electronic device may have an annular magnet (e.g., an annular magnet that at least partially wraps the charging coil) positioned based on the arrangement structure of the battery and the charging coil (e.g., an induction coil, or a receiving coil). The electronic device may include a magnetic sensor (e.g., a Hall sensor) for determining the presence or absence of the annular magnet. For example, the position of the magnetic sensor may be determined by considering the location where the annular magnet is positioned. Since the internal space of the electronic device is narrow, there may be difficulties in positioning the magnetic sensor. According to one embodiment, when an electronic device supports an MPP charging method, the electronic device requires a magnetic sensor for detecting an annular magnet and can provide an efficient placement structure for the magnetic sensor. The technical tasks intended to be accomplished in this document are not limited to those mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art to which this document belongs from the description below. According to one embodiment, the electronic device may include a housing comprising a first surface, a second surface facing the first surface, and a side surrounding the space between the first surface and the second surface; a battery disposed in the space; a wireless charging coil disposed between the battery and the second surface in the space; a processor comprising a processing circuit; a first printed circuit board on which the processor is disposed; a second printed circuit board electrically connected to the battery and the first printed circuit board and disposed within a recess space in which the battery is fixed; and at least one Hall sensor disposed on the second printed circuit board and adjacent to the wireless charging coil, configured to detect a magnetic force