CN108696618B - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
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- CN108696618B CN108696618B CN201810463587.8A CN201810463587A CN108696618B CN 108696618 B CN108696618 B CN 108696618B CN 201810463587 A CN201810463587 A CN 201810463587A CN 108696618 B CN108696618 B CN 108696618B
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- Prior art keywords
- magnetic
- magnetic body
- mobile terminal
- rotating mechanism
- hall element
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- 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
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/90—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of galvano-magnetic devices, e.g. Hall-effect devices
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- 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
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The present invention provides a mobile terminal, comprising: the Hall element is arranged on the inner side of the shell and is opposite to the magnetic rotating mechanism; the magnetic rotating mechanism comprises at least one group of magnetic units, the magnetic units comprise at least two of a first magnetic body, a second magnetic body and a non-magnetic body which are arranged along the rotating direction of the magnetic rotating mechanism, and the magnetic pole orientations of the first magnetic body and the second magnetic body are opposite. Therefore, the integrity and the waterproof performance of the mobile terminal can be effectively improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a mobile terminal.
Background
Volume adjustment and power switch are commonly used functions of mobile terminals such as mobile phones, and are generally implemented by side keys arranged on the mobile terminals. In the prior art, the types of the side keys mainly include a touch key and a mechanical key. However, no matter the touch key or the mechanical key, a mounting hole for mounting the side key needs to be formed in the middle frame of the mobile terminal, and the installation of the mounting hole may not only affect the integrity of the mobile terminal, but also reduce the waterproof performance of the mobile terminal.
Therefore, in the prior art, the side key of the mobile terminal has the problem of poor waterproof performance.
Disclosure of Invention
The embodiment of the invention provides a mobile terminal, which aims to solve the problem that in the prior art, a side key of the mobile terminal is poor in waterproof performance.
An embodiment of the present invention provides a mobile terminal, including: the Hall element is arranged on the inner side of the shell and is opposite to the magnetic rotating mechanism;
the magnetic rotating mechanism comprises at least one group of magnetic units, the magnetic units comprise at least two of a first magnetic body, a second magnetic body and a non-magnetic body which are arranged along the rotating direction of the magnetic rotating mechanism, and the magnetic pole orientations of the first magnetic body and the second magnetic body are opposite.
Therefore, under the condition that the current passes through the Hall element, the Hall element can sense the change of the magnetic field by driving the magnetic rotating mechanism to rotate, and output a voltage signal corresponding to the change of the magnetic field, wherein the voltage signal is used for generating a control instruction so as to realize the volume adjusting function and/or the power switch function of the mobile terminal; compared with the mechanical side key or the light-touch side key which needs to be provided with the opening on the shell of the mobile terminal in the prior art, the opening does not need to be arranged on the shell, and the volume adjustment and the power control of the mobile terminal are directly realized by utilizing the Hall effect, so that the integrity and the waterproof performance of the mobile terminal are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a Hall element according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a Hall element provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a magnetic rotating mechanism provided in an embodiment of the present invention;
fig. 5 is a schematic structural view of a first magnetic body according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a second magnetic body according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a nonmagnetic body according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a housing according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 8, an embodiment of the present invention provides a mobile terminal, including:
the magnetic rotating mechanism comprises a shell 10, a magnetic rotating mechanism 30 arranged on the outer side of the shell 10, and a Hall element 20 arranged on the inner side of the shell 10 and opposite to the magnetic rotating mechanism 30;
the magnetic rotating mechanism 30 includes at least one set of magnetic units, the magnetic units include at least two of a first magnetic body 31, a second magnetic body 32, and a non-magnetic body 33 arranged along the rotating direction of the magnetic rotating mechanism 30, and the magnetic poles of the first magnetic body 31 and the second magnetic body 32 face oppositely.
In this embodiment, the hall element 20 and the magnetic rotating mechanism 30 are respectively disposed on the inner side and the outer side of the housing 10, the mobile terminal further includes a circuit board 40, the circuit board 40 is also located on the inner side of the housing 10, the hall element 20 is disposed on the circuit board 40, the circuit board 40 includes a first electrode 41, a second electrode 42, a third electrode 43 and a fourth electrode 44, and the hall element 20 is electrically connected to the four electrodes on the circuit board 40, wherein the first electrode 41 and the second electrode 42 can be electrically connected to the input and output terminals of the power supply of the mobile terminal; the third electrode 43 and the fourth electrode 44 may be electrically connected to a potential difference detection element (such as a voltmeter) for detecting a voltage signal output by the hall element 20 when sensing a change in the magnetic field, where the voltage signal is used to generate a corresponding control instruction to implement a volume adjustment function and/or a power switch function of the mobile terminal.
Since the magnetic unit of the magnetic rotating mechanism 30 includes at least two of the first magnetic body 31, the second magnetic body 32 and the non-magnetic body 33, in the process of driving the magnetic rotating mechanism 30 to rotate, at least two of the first magnetic body 31, the second magnetic body 32 and the non-magnetic body 33 can alternately act on the hall element 20, so that the hall element 20 can sense the corresponding magnetic field change and output the corresponding voltage signal, thereby realizing the control of the volume of the mobile terminal or the power supply.
Under the condition that current passes through the hall element 20, the hall element 20 can sense the change of the magnetic field by driving the magnetic rotating mechanism 30 to rotate, and output a voltage signal corresponding to the change of the magnetic field, wherein the voltage signal is used for generating a control instruction so as to realize the volume adjusting function and/or the power switch function of the mobile terminal; compared with the mechanical side key or the light-touch side key which needs to be provided with the opening on the shell of the mobile terminal in the prior art, the opening does not need to be arranged on the shell 10, and the volume adjustment and the power control of the mobile terminal are directly realized by utilizing the Hall effect, so that the integrity and the waterproof performance of the mobile terminal are improved.
The technical principle of the embodiment of the invention is the hall effect, as shown in fig. 2, when a current passes through the hall element 20 in a direction perpendicular to an external magnetic field, a carrier (e.g., electrons) deflects and an additional electric field is generated in a direction perpendicular to the current and the magnetic field, so that a potential difference (proportional to a hall coefficient/magnetic field strength/current of the hall element 20 and inversely proportional to the thickness of the hall element 20) is generated at two ends of the hall element 20, when the applied magnetic field strength (magnetic flux) or the magnetic field direction changes, the magnitude or direction of the potential difference changes, and a voltage signal output by the hall element 20 generates a corresponding control instruction, so that the volume adjusting function and/or the power switching function of the mobile terminal are/is realized.
The housing 10 may be a middle frame housing of the mobile terminal, that is, the magnetic rotating mechanism 30 is disposed on the middle frame housing of the mobile terminal, such as the left and right sides of the middle frame housing, so that a user can conveniently operate the magnetic rotating mechanism 30 to adjust the volume.
Among them, the hall element 20 can be employed to have a high mobility (mobility)>2900cm2V · s), high hall coefficient, and strong strain recovery, such as semiconductor materials of germanium, silicon, gallium arsenide, indium antimonide, and the like; the thickness of the hall element 20 is small to improve the overall sensitivity of the hall element 20, and may range from 15 micrometers to 25 micrometers, and is preferably 20 micrometers.
Optionally, the magnetic unit includes the first magnetic body and the second magnetic body, or the first magnetic body and the non-magnetic body, or the second magnetic body and the non-magnetic body.
In this embodiment, when the magnetic unit includes the first magnetic body 31 and the second magnetic body 32, or the first magnetic body 31 and the non-magnetic body 33, or the second magnetic body 32 and the non-magnetic body 33, that is, when the magnetic unit includes only two of the first magnetic body 31, the second magnetic body 32, and the non-magnetic body 33, in this way, when the magnetic rotating mechanism is driven to rotate, the hall element 20 can sense the change of the magnetic field, and then output a voltage signal corresponding to the change of the magnetic field, and the voltage signal can be used to generate a control command for controlling the power switch of the mobile terminal by a user.
In the case where the magnetic unit includes only two of the first magnetic body 31, the second magnetic body 32, and the non-magnetic body 33, when the magnetic rotating mechanism 30 is driven to rotate, the magnetic field sensed by the hall element 20 changes, and the rotating direction of the magnetic rotating mechanism 30 cannot be recognized, so that the volume of the mobile terminal cannot be directionally adjusted (volume increase or volume decrease), and only the control of the power switch of the mobile terminal (power on or power off) can be realized.
Optionally, the magnetic unit includes the first magnetic body 31, the second magnetic body 32, and the non-magnetic body 33.
In the present embodiment, when the magnetic unit includes the first magnetic body 31, the second magnetic body 32, and the nonmagnetic body 33, in the rotation process of the driving magnetic rotation mechanism 30, the N pole, the S pole, and the nonmagnetic body 33 of each set of magnetic unit alternately pass over the hall element 20, so that the direction and magnitude of the magnetic field passing through the hall element 20 change, the direction and magnitude of the voltage across the hall element 20 change accordingly, and a voltage signal corresponding to the voltage change is output, and the voltage signal is used to generate a volume adjustment command.
The first magnetic body 31, the second magnetic body 32, and the non-magnetic body 33 disposed along the rotation direction may be arranged in the order of the first magnetic body 31, the second magnetic body 32, and the non-magnetic body 33 along the rotation direction, or the first magnetic body 31, the non-magnetic body 33, and the second magnetic body 32 along the rotation direction. The first magnetic body 31 includes an N pole and an S pole, the second magnetic body 32 also includes an N pole and an S pole, and the N pole of the first magnetic body 31 and the N pole of the second magnetic body 32 are oriented in opposite directions.
For example, it can be defined that when the first magnetic body 31(S pole), the second magnetic body 32(N pole), and the non-magnetic body 33 of each set of magnetic units pass through the hall element 20, the voltage variation across the hall element 20 is 1/-1/0;
when the magnetic rotating mechanism 30 rotates clockwise, the magnetic pole passing through the hall element 20 changes from S pole to N pole, from N pole to the nonmagnetic body 33, and from the nonmagnetic body 33 to S pole, and the corresponding voltage changes are 1 to-1, -1 to 0, and 0 to 1;
when the magnetic rotating mechanism 30 rotates counterclockwise, the magnetic pole passing through the hall element 20 changes from S pole to the non-magnetic body 33, from 33N pole to the non-magnetic body, and from N pole to S pole, and the corresponding voltage changes are 1-0, 0-1, -1;
since the magnetic rotating mechanism 30 rotates in the clockwise direction and the counterclockwise direction, the output voltage signals are different, so that the corresponding volume adjustment command can be generated by using different voltage signals. For example, when the magnetic rotation mechanism 30 is rotated clockwise, the volume can be increased; when the magnetic rotation mechanism 30 is rotated counterclockwise, the volume can be reduced.
For example, each group of magnetic units is rotated, and one volume unit is correspondingly adjusted; or, when the magnetic rotation mechanism 30 includes a plurality of sets of magnetic units, each rotation of the magnetic rotation mechanism 30 may be set to adjust one volume unit.
In this embodiment, the volume unit may be a minimum unit of volume adjustment.
It should be noted that, compared to a soft touch type volume switch or a mechanical volume switch, the volume switch adjusts one volume unit per touch, the magnetic rotating mechanism 30 provided in this embodiment may implement a continuous volume adjustment with a small amplitude, and the more the number of sets of magnetic units in the magnetic rotating mechanism 30 is, the smaller the adjustment amplitude of the volume is, the stronger the continuity is.
Wherein, the first magnetic body 31 and the second magnetic body 32 can be selected from high magnetic pole energy (512 kJ/m)3) The strong magnet maximizes the change of the magnetic flux, so as to improve the sensitivity of the Hall element in the working process. For example, a ru-fe-b magnet may be selected as the first magnetic body 31 and the second magnetic body 32, the magnetic performance of the ru-fe-b magnet is larger than that of a ferrite magnet, alnico, samarium-cobalt, or the like, and the nd-fe-b magnet may absorb 640 times of its own weight. The non-magnetic body 33 may be made of a non-magnetic material that cannot be magnetized, such as plastic.
Optionally, the magnetic rotating mechanism 30 is a cylindrical magnetic rotating mechanism, and the first magnetic body 31, the second magnetic body 32, and the non-magnetic body 33 are all cylindrical sector bodies.
In this embodiment, the cylindrical magnetic rotating mechanism has the characteristics of smooth rotation and uniform magnetic flux distribution.
The magnetic rotating mechanism 30 may also be an elliptic cylindrical magnetic rotating mechanism or a prismatic magnetic rotating mechanism.
Preferably, the cross section of each cylindrical sector body is a sector, and the angles of the central angles corresponding to the sectors are the same. By the arrangement, the regularity and the consistency of the voltage signal output by the Hall element 20 and the accuracy of volume adjustment can be improved.
Further optionally, the magnetic rotating mechanism includes a set of the magnetic units, and a central angle corresponding to each of the sectors is 120 °.
In this embodiment, the central angle corresponding to the sector of each cylindrical sector is set to 120 °, so that the adjustment of one volume unit can be realized when the magnetic rotating mechanism 30 rotates for one turn, so as to facilitate the user to control the volume adjustment of the mobile terminal.
Optionally, a magnetic isolation glue layer is arranged between two adjacent columnar sector bodies.
In this embodiment, a magnetism isolating glue layer may be disposed between two adjacent cylindrical sector bodies, so as to prevent a magnetic transition region from existing between the two adjacent cylindrical sector bodies and affecting the volume adjustment. Wherein, the thickness of the magnetism isolating glue layer can be in the range of (5 micrometers to 15 micrometers), and is generally preferably 10 micrometers.
When the magnetic rotating mechanism 30 includes at least two magnetic units, a magnetic isolation adhesive layer may be disposed between the adjacent magnetic units to improve the volume adjustment effect of the mobile terminal.
Optionally, as shown in fig. 4 and 8, the housing 10 is provided with a rotating shaft 11 protruding from the outer surface of the housing 10, the magnetic rotating mechanism 30 is provided with a rotating hole 34 matching with the rotating shaft 11, and the magnetic rotating mechanism 30 can rotate relative to the housing 10 through the matching connection between the rotating hole 34 and the rotating shaft 11.
In the present embodiment, the rotation of the magnetic rotation mechanism 30 with respect to the housing 10 may be realized by providing a rotating shaft. And in order to enhance the influence of the magnetic rotating mechanism 30 on the hall element 20, the hall element 20 may be arranged eccentrically with respect to the magnetic rotating mechanism 30, that is, the geometric center of the hall element 20 is arranged eccentrically with respect to the axial line of the magnetic rotating mechanism 30.
Wherein, the hall element 20 and the magnetic rotating mechanism 30 are partially overlapped in the axial direction of the magnetic rotating mechanism 30. Therefore, the hall element 20 and the magnetic rotating mechanism 30 are eccentrically arranged, so that the magnetic flux which can be sensed by the hall element 20 is increased, and the sensitivity of the hall element 20 is improved.
It should be noted that the Mobile terminal provided in the embodiment of the present invention may be a Mobile phone, a tablet Personal Computer (tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A mobile terminal, comprising: the Hall element is arranged on the inner side of the shell and is opposite to the magnetic rotating mechanism;
the magnetic rotating mechanism comprises at least one group of magnetic units, each magnetic unit comprises a first magnetic body, a second magnetic body and a non-magnetic body, and the magnetic poles of the first magnetic body and the second magnetic body are opposite in direction;
wherein the first magnetic body, the second magnetic body and the non-magnetic body are arranged in sequence along the rotation direction of the magnetic rotation mechanism; or the first magnetic body, the non-magnetic body and the second magnetic body are arranged in sequence along the rotation direction of the magnetic rotation mechanism.
2. The mobile terminal according to claim 1, wherein the magnetic rotating mechanism is a cylindrical magnetic rotating mechanism, and the first magnetic body, the second magnetic body and the non-magnetic body are cylindrical sector bodies.
3. The mobile terminal of claim 2, wherein a cross section of each of the cylindrical sectors is a sector, and an angle of a central angle corresponding to each of the sectors is the same.
4. The mobile terminal of claim 3, wherein the magnetic rotating mechanism comprises a set of the magnetic units, and each of the sectors has a central angle of 120 °.
5. The mobile terminal according to claim 2, wherein a magnetic isolation glue layer is disposed between two adjacent cylindrical sector bodies.
6. The mobile terminal according to any of claims 1 to 5, wherein the housing is provided with a rotating shaft protruding from an outer surface of the housing, the magnetic rotating mechanism is provided with a rotating hole matching with the rotating shaft, and the magnetic rotating mechanism can rotate relative to the housing through the matching connection of the rotating hole and the rotating shaft.
7. The mobile terminal of claim 1, wherein a geometric center of the hall element is eccentrically disposed with respect to an axis line of the magnetic rotating mechanism.
8. The mobile terminal according to claim 7, wherein the hall element and the magnetic rotating mechanism partially coincide in an axial direction of the magnetic rotating mechanism.
9. The mobile terminal of claim 1, further comprising a circuit board, wherein the circuit board is disposed in the housing, the hall element is disposed on the circuit board, and the hall element is electrically connected to four electrodes disposed on the circuit board, wherein two of the four electrodes are electrically connected to a power supply of the mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810463587.8A CN108696618B (en) | 2018-05-15 | 2018-05-15 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810463587.8A CN108696618B (en) | 2018-05-15 | 2018-05-15 | Mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108696618A CN108696618A (en) | 2018-10-23 |
| CN108696618B true CN108696618B (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810463587.8A Active CN108696618B (en) | 2018-05-15 | 2018-05-15 | Mobile terminal |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109714460A (en) * | 2018-12-20 | 2019-05-03 | 努比亚技术有限公司 | Press key expansion device, terminal, key expansion method and storage medium |
| CN109561191A (en) * | 2018-12-20 | 2019-04-02 | 努比亚技术有限公司 | Press key expansion device, terminal, key expansion method and storage medium |
| CN112713038B (en) * | 2020-12-15 | 2023-04-07 | Oppo（重庆）智能科技有限公司 | Side key assembly for electronic equipment and electronic equipment with same |
| CN113050405A (en) * | 2021-03-16 | 2021-06-29 | 读书郎教育科技有限公司 | Control device and method of waterproof telephone watch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10232141A (en) * | 1997-02-20 | 1998-09-02 | Alps Electric Co Ltd | Method for magnetizing magnetic body and magnetic potentiometer using the same |
| CN101005280A (en) * | 2006-01-20 | 2007-07-25 | 深圳市拓邦电子科技股份有限公司 | Induction code switch |
| CN204731676U (en) * | 2015-07-13 | 2015-10-28 | 浙江绍兴苏泊尔生活电器有限公司 | Adjusting knob and electric appliance product |
| CN105281732A (en) * | 2015-10-19 | 2016-01-27 | 宁波方太厨具有限公司 | Inductive switch knob and encoding method thereof |
-
2018
- 2018-05-15 CN CN201810463587.8A patent/CN108696618B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10232141A (en) * | 1997-02-20 | 1998-09-02 | Alps Electric Co Ltd | Method for magnetizing magnetic body and magnetic potentiometer using the same |
| CN101005280A (en) * | 2006-01-20 | 2007-07-25 | 深圳市拓邦电子科技股份有限公司 | Induction code switch |
| CN204731676U (en) * | 2015-07-13 | 2015-10-28 | 浙江绍兴苏泊尔生活电器有限公司 | Adjusting knob and electric appliance product |
| CN105281732A (en) * | 2015-10-19 | 2016-01-27 | 宁波方太厨具有限公司 | Inductive switch knob and encoding method thereof |
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| CN108696618A (en) | 2018-10-23 |
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