CN112601149B - Earphone, earphone box and earphone box assembly - Google Patents
Earphone, earphone box and earphone box assembly Download PDFInfo
- Publication number
- CN112601149B CN112601149B CN202011461945.5A CN202011461945A CN112601149B CN 112601149 B CN112601149 B CN 112601149B CN 202011461945 A CN202011461945 A CN 202011461945A CN 112601149 B CN112601149 B CN 112601149B
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- earphone
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- control unit
- magnetic control
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1025—Accumulators or arrangements for charging
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C2011/001—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable audio devices, e.g. headphones or MP3-players
Abstract
The disclosure relates to the technical field of electronic equipment, in particular to an earphone, an earphone box and an earphone box assembly, wherein the earphone box comprises: the earphone comprises a box body, a magnetic control unit and a processing unit, wherein the box body is provided with a containing part for containing the earphone; the magnetic control unit is arranged on one side of the accommodating part, can be conducted in response to a magnetic field and generates a trigger signal; the processing unit is connected with the magnetic control unit, and the processing unit determines that the earphone is put into the box when receiving the trigger signal. The detection of the earphone entering box is realized, and the earphone box cost can be effectively controlled.
Description
Technical Field
The disclosure relates to the technical field of electronic equipment, in particular to an earphone, an earphone box and an earphone box assembly.
Background
The left earplug and the right earplug of the wireless stereo earphone can realize independent work of left and right sound channels without being connected through a cable. Currently, wireless stereo headphones are typically housed through a headphone case, in which a battery is often provided, which can charge the headphones. When the earphone is charged by a battery built in the battery box, it is often necessary to detect whether the earphone is inserted into the earphone box.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
An object of the present disclosure is to provide an earphone, an earphone box and an earphone box assembly, and then whether can detect the earphone and get into the earphone box.
According to a first aspect of the present disclosure, there is provided a headphone case including:
the earphone comprises a box body, wherein the box body is provided with a containing part for containing the earphone;
the magnetic control unit is arranged on one side of the accommodating part, can be conducted in response to a magnetic field and generates a trigger signal;
the processing unit is connected with the magnetic control unit, and the processing unit determines that the earphone is put into the box when receiving the trigger signal.
According to a second aspect of the present disclosure, there is provided an earphone for the above earphone box, the earphone comprising:
an earphone body;
the magnetic piece is arranged on the earphone main body, the earphone can be stored in the storage part of the box body, and when the earphone is stored in the storage part, the magnetic field of the magnetic piece triggers the magnetic control unit.
According to a third aspect of the present disclosure, there is provided a headphone cartridge assembly, the headphone cartridge assembly comprising:
the earphone box;
in the above earphone, the earphone is accommodated in the accommodating portion of the earphone box.
According to the earphone box provided by the embodiment of the disclosure, the magnetic control unit is arranged on the box body, the magnetic control unit can generate the trigger signal under the magnetic field, and the processing unit determines that the earphone is put into the box when receiving the trigger signal, so that whether the earphone provided with the magnetic piece is put into the box or not can be detected, and the cost can be saved due to low price of the magnetic control unit.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
Fig. 1 is a schematic structural view of a first earphone case provided in an exemplary embodiment of the present disclosure;
fig. 2 is a schematic structural view of a second earphone case provided in an exemplary embodiment of the present disclosure;
fig. 3 is a schematic structural view of a third earphone case provided in an exemplary embodiment of the present disclosure;
fig. 4 is a block diagram of a first earphone case provided in an exemplary embodiment of the present disclosure;
fig. 5 is a block diagram of a second earphone case provided in an exemplary embodiment of the present disclosure;
fig. 6 is a schematic diagram of a voltage step-down circuit provided in an exemplary embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an earphone according to an exemplary embodiment of the present disclosure;
fig. 8 is a schematic diagram of an earphone box assembly according to an exemplary embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.
Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.
The left earphone and the right earphone of the wireless Bluetooth earphone are arranged separately, the left earphone and the right earphone are not connected by a cable, and can work independently through wireless separation of left and right sound channels. Such as a truly wireless stereo (TWS, true wireless Stereo) earphone. The wireless Bluetooth earphone solves the problem that the wired earphone is caused by the earphone connecting wire, so that a user moves more freely, and the wireless Bluetooth earphone has the characteristic of diversified use modes, for example, the wireless Bluetooth earphone can be independently shared and shared, and a group of earphones can be used as two earphones.
In order to prevent the earphone from being lost or damaged when not in use, the wireless Bluetooth earphone is often matched with an earphone box, and a battery is further arranged in the earphone box and can be used for charging the earphone. A metal PIN (POGO PIN) for charging is generally provided on a wireless bluetooth headset, and is connected with a battery in the headset case through the metal PIN when the headset is received in the headset case, so as to charge the headset.
The exemplary embodiments of the present disclosure first provide an earphone box 100, as shown in fig. 1, the earphone box 100 including: the earphone comprises a box body 110, a magnetic control unit 120 and a processing unit 130, wherein a containing part 111 for containing the earphone is arranged on the box body 110; the magnetic control unit 120 is disposed at one side of the accommodating portion 111, and the magnetic control unit 120 can be turned on in response to the magnetic field and generate a trigger signal; the processing unit 130 is connected to the magnetic control unit 120, and the processing unit 130 determines that the earphone is in the box when receiving the trigger signal.
According to the earphone box 100 provided by the embodiment of the disclosure, the magnetic control unit 120 is arranged on the box body 110, the magnetic control unit 120 can generate the trigger signal under the magnetic field, and the processing unit 130 determines that the earphone is put into the box when receiving the trigger signal, so that whether the earphone provided with the magnetic piece is put into the box or not can be detected, and the cost can be saved due to the low price of the magnetic control unit 120.
Further, as shown in fig. 2, the earphone case 100 provided in the embodiment of the present disclosure may further include a case cover 140 and a power supply unit 160. The cover 140 may be connected to the case 110, and the cover 140 is used for shielding the accommodating portion 111 on the case 110 to prevent the earphone disposed on the accommodating portion 111 from being lost or damaged. The cover 140 may be disposed at one side of the case body 110 where the receiving part 111 is opened. The power supply unit 160 is configured to supply power when the earphone is charged, and the power supply unit 160 may include a second power source 161 and a charging circuit through which an electric signal of the second power source 161 is transmitted to the earphone when charged. The power supply unit 160 may be disposed at a side of the case 110 remote from the opening of the receiving portion 111.
Each part of the earphone box provided by the embodiment of the present disclosure will be described in detail below:
the case 110 may be in the shape of a cuboid, sphere, hemisphere, or ellipsoid. The case 110 is provided with a receiving portion 111 having an opening, and the receiving portion 111 is used for receiving an earphone. Since the earphone is usually two, the accommodating portion 111 includes a first accommodating portion and a second accommodating portion disposed on the case 110, a magnetic control unit 120 is disposed on a sidewall of the first accommodating portion, and a magnetic control unit 120 is disposed on a sidewall of the second accommodating portion. Of course, in practical applications, the case 110 may also be provided with a receiving hole, and one or two headphones may be disposed in the same receiving hole.
The shape of the receiving hole may be matched with the earphone. For example, the earphone may include an earplug 211 and a body 212, and the corresponding receiving aperture may be provided with an earplug 211 receiving area and a body 212 receiving area. The accommodating area of the earplug 211 is arranged at one end close to the opening, the accommodating area of the machine body 212 is arranged at one end close to the power supply unit 160, and the accommodating area of the earplug 211 and the accommodating area of the machine body 212 are mutually communicated. The cross-sectional area of the receiving area of earplug 211 is greater than the cross-sectional area of the receiving area of body 212. The axes of the first and second receiving portions may be parallel.
The cover 140 is disposed at one side of the housing portion 111 of the case 110, and the cover 140 may be hinged (e.g., connected by a hinge or a rotation shaft) to the case 110. The box body 110 and the box cover 140 can be further provided with a fastening structure and a spring, the spring can be arranged on the connecting shaft, and the fastening structure is arranged at one end of the box body 110 or the box cover 140 far away from the connecting shaft.
The material of the case body 110 and the case cover 140 may be plastic, metal, glass, or the like. The materials of the case 110 and the case cover 140 may be the same or different, for example, the materials of the case 110 and the case cover 140 may be plastic, or the material of the case 110 may be glass, and the material of the case cover 140 is plastic.
When the case 110 includes a first accommodating portion and a second accommodating portion, the magnetic control units 120 are disposed at corresponding positions of the first accommodating portion and the second accommodating portion, respectively. When each of the magnetic control units 120 corresponds to one of the headphones, that is, the corresponding headphones with the magnetic member 220 are inserted into the accommodating hole, the magnetic control unit 120 corresponding to the accommodating hole is triggered. However, since the two accommodating holes are closer to each other, the magnetic fields of the two headphones may affect each other, so that the detection result is inaccurate, for example, only one headphone enters the accommodating hole, and the magnetic field generated by the magnetic element 220 of the headphone affects the magnetic control units 120 corresponding to the two accommodating holes. In order to solve this problem, a magnetic shield layer 150 may be provided on the case 110, the magnetic shield layer 150 being provided between the first and second receiving parts.
Wherein, the magnetic shielding layer 150 may be embedded in the case 110 and between the first and second receiving parts in the case 110. The magnetic shielding layer 150 is used for shielding or weakening the magnetic field, so that the magnetic field on one side of the magnetic shielding layer 150 can be prevented from affecting the magnetic control switch on the other side of the magnetic shielding layer 150, and the magnetic control switch can be prevented from being triggered by mistake. The magnetic shielding layer 150 may be a metal mesh such as an iron mesh or a copper mesh, etc. Or the magnetic field can be shielded by the electrified conductor, when the magnetic control unit 120 is triggered, the magnetic shielding layer 150 is electrified, and at the moment, the on-off states of the magnetic control units 120 at the two sides of the magnetic shielding layer 150 are continuously detected. When the magnetic control unit 120 is still in the triggered state after the magnetic shielding layer 150 is powered on, the earphone is considered to be in the box when the detection result is correct. When the magnetic control unit 120 is still disconnected after the magnetic shielding layer 150 is powered on, the earphone is not in the box due to the error detection result.
As shown in fig. 4, the magnetic control unit 120 may include a first power supply 121 and a magnetic switch 122, one end of the magnetic switch 122 is connected to the first power supply 121, the other end of the magnetic switch 122 is connected to the processing unit 130, when the magnetic switch 122 is in a magnetic field, the magnetic switch 122 is turned on, and the first power supply 121 outputs a trigger signal to the processing unit 130.
The first power source 121 may be connected to the second power source 161, the second power source 161 may be a battery provided in the case 110, and the first power source 121 may include a step-down circuit 1211. Since only a small voltage or current is needed to detect whether the magnetic control unit 120 is turned on. Therefore, in order to avoid impact of a large current or voltage signal on circuit devices such as the processing unit 130 and the like to affect the service life, the voltage of the signal output by the battery (the second power source 161) can be reduced by the voltage reducing circuit (the first power source 121), so that the energy consumption can be reduced, and the duration of the earphone box is facilitated.
The voltage step-down circuit 1211 may be a charge pump voltage step-down circuit or a BUCK circuit. The charge pump voltage reducing circuit can reduce the voltage output by the battery in multiple times. By way of example, the charge pump buck circuit may implement a 2-fold buck or a 4-fold buck, etc.
As shown in fig. 6, the 2-fold voltage-reducing charge pump may include a first transistor M1, a second transistor M2, a third transistor M3, a fourth transistor M4, a first capacitor C1, and a second capacitor C2. The first end of the first transistor M1 is connected with the second power supply 161, and the control end of the first transistor M1 is connected with the processing unit 130; a first end of the second transistor M2 is connected to a second end of the first transistor M1, and a control end of the second transistor M2 is connected to the processing unit 130; the first end of the third transistor M3 is connected to the second end of the second transistor M2, and the control end of the third transistor M3 is connected to the processing unit 130; the first end of the fourth transistor M4 is connected to the second end of the third transistor M3, and the control end of the fourth transistor M4 is connected to the processing unit 130; the first end of the first capacitor C1 is connected with the second end of the first transistor M1, and the second end of the first capacitor C1 is connected with the second end of the third transistor M3; the first end of the second capacitor C2 is connected to the second end of the second transistor M2, and the second end of the second capacitor C2 is grounded.
In the writing stage, the processing unit 130 controls the first transistor M1 and the third transistor M3 to be turned on, and controls the second transistor M2 and the fourth transistor M4 to be turned off, so as to charge the first capacitor C1 and the second capacitor C2;
in the output stage, the processing unit 130 controls the first transistor M1 and the third transistor M3 to be turned off, and controls the second transistor M2 and the fourth transistor M4 to be turned on, and outputs the stepped-down charge signal.
Of course, in practical applications, the step-down charge pump may be other step-down multiples, which is not limited in the embodiments of the disclosure.
Of course, in practical application, the magnetic control unit 120 may also be directly connected to the second power source 161 (battery), and directly supply power to the magnetic control unit 120 through the second power source 161, so that the number of devices in the earphone box can be reduced, which is beneficial to controlling the cost of the earphone box.
As shown in fig. 5, the earphone box provided in the embodiment of the present disclosure may further include a switching circuit 170 and an earphone charging circuit 162, where the earphone charging circuit 162 is configured to charge the earphone. The switching circuit 170 is connected to the step-down circuit 170, the magnetic control unit 120, the second power source 161, and the earphone charging circuit 162. The switching circuit 170 is configured to switch the step-down circuit 1211 and the magnetic control unit 120 on when the earphone is in the box detection mode, and to switch the step-down circuit 1211 and the earphone charging circuit 162 on when the switching circuit 170 is in the earphone charging mode, or to switch the second power source 161 directly on the earphone charging circuit 162 on when the earphone charging mode. The voltage reducing circuit 1211 is shared in the earphone in-box detection and battery charging modes, so that the number of electronic devices is saved, and the cost of the earphone box is reduced.
As shown in fig. 3, the magnetically sensitive switch 122 includes: the first magnetizable tab 1221 and the second magnetizable tab 1222, the second magnetizable tab 1222 and the first magnetizable tab 1221 are disposed opposite to each other, the first magnetizable tab 1221 and the second magnetizable tab 1222 are normally open, and the first magnetizable tab 1221 and the second magnetizable tab 1222 are closed when the magnetic switch 122 is in a magnetic field.
The first and second magnetizable clips 1221 and 1222 are in a non-magnetized state in a non-magnetic field environment, and the first and second magnetizable clips 1221 and 1222 are in a normally open state. The first and second magnetizable clips 1221, 1222 are magnetized when in a magnetic field environment, and the polarity of the first magnetizable clip 1221 and the polarity of the second magnetizable clip 1222 are opposite. The first magnetizable tab 1221 and the second magnetizable tab 1222 are magnetized and then attracted to each other by magnetic force, and the magnetic switch 122 is closed. When the magnetic field is removed (the earphone is removed), the first and second magnetizable springs 1221 and 1222 demagnetize, and the magnetically sensitive switch 122 is opened.
The box 110 is provided with a receiving cavity, and the first magnetizable spring sheet 1221 and the second magnetizable spring sheet 1222 are disposed in the receiving cavity. The accommodating cavity is a sealed cavity, and inert gas is filled in the accommodating cavity or the accommodating cavity is a vacuum accommodating cavity. By arranging the accommodating cavity on the box body 110, the first magnetizable shrapnel 1221 and the second magnetizable shrapnel 1222 are arranged in the accommodating cavity, thereby avoiding the need of separately manufacturing the shell of the magnetic control unit 120, saving the space of the box body 110 and being beneficial to the miniaturization of the earphone box. The accommodating cavity is a sealed cavity, and inert gas is filled in the accommodating cavity or the accommodating cavity is a vacuum accommodating cavity.
When the earphone 200 includes the earplug 211 and the body 212, the accommodating area of the earplug 211 and the accommodating area of the body 212 are provided in the case 110, and a step is provided between the accommodating area of the earplug 211 and the accommodating area of the body 212. Namely, the side walls of the first accommodating part and the second accommodating part are provided with steps. A receiving cavity for receiving the magnetically sensitive switch 122 may be provided within the step.
For example, when the earphone 200 is stored in the earphone box 100, the earplugs 211 of the two earphones may be disposed opposite to each other, and at this time, the step in the first accommodating portion may be disposed on a side of the first accommodating portion near the second accommodating portion, and the step in the second accommodating portion may be disposed on a side of the second accommodating portion near the first accommodating portion. That is, two magneto-sensitive switches 122 are provided at the middle position of the earphone box, and since the two magneto-sensitive switches 122 are closely spaced, it is necessary to provide a magnetic shielding layer 150 between the two magneto-sensitive switches 122.
Alternatively, when the earphone 200 is stored in the earphone box 100, the earplugs 211 of the two earphones may be disposed oppositely, and at this time, the step in the first accommodating portion may be disposed on a side of the first accommodating portion away from the second accommodating portion, and the step in the second accommodating portion may be disposed on a side of the second accommodating portion away from the first accommodating portion.
Alternatively, when the earphone 200 is stored in the earphone box 100, the earplugs 211 of the two earphones may face in the same direction (toward the front of the earphone box or toward the back of the earphone box), and the steps in the first accommodating portion and the steps in the second accommodating portion may be located on the same side of the earphone box.
Of course, in practical applications, the magnetically sensitive switch 122 may also include a package housing, and the first magnetizable tab 1221 and the second magnetizable tab 1222 may be packaged in the package housing. The package housing may be provided with first conductive pins at both ends, which are connected to the first magnetizable dome 1221 and the second magnetizable dome 1222, respectively. At this time, the case 110 may be provided with a mounting portion for mounting the magneto-sensitive switch 122. The mounting portion is provided with two second conductive pins that cooperate with the first conductive pins, one of which is connected to the second power source 161 (output end of the step-down power source), and the other of which is connected to the processing unit 130.
The second power source 161 and the processing unit 130 are disposed on a side of the box body 110 far away from the opening of the accommodating portion 111, a first routing hole 112 and a second routing hole 113 are disposed on the box body 110, the first routing hole 112 extends from the magnetic control unit 120 to the second power source 161, and the second routing hole 113 extends from the magnetic control unit 120 to the processing unit 130.
For example, the first trace hole 112 may extend from a second conductive pin to the second power source 161, and the second trace hole 113 extends from the other magnetron unit 120 to the processing unit 130. Wires can be arranged in the first wire routing holes and the second wire routing holes so as to be connected with corresponding electrical elements.
The earphone case provided by the embodiments of the present disclosure may further include a circuit board, and the processing unit 130, the earphone charging circuit 162, the first power supply 121, and the battery charging circuit may all be disposed on the circuit board.
In a possible embodiment, the battery (the second power source 161) charges the earphone by wired charging. The earphone can be provided with a metal contact, and the corresponding position of the accommodating hole on the earphone box is also provided with a metal contact. When the magnetic switch detects that the earphone is in the box, the battery supplies power to the earphone charging circuit 162, the earphone charging circuit 162 can be connected with the metal contact, and an electric signal flows to the earphone through the charging circuit and the metal contact.
In another possible embodiment, the battery (the second power source 161) may charge the earphone by wireless charging. A transmitting coil can be arranged in the earphone box, and the transmitting coil can be arranged on the inner wall of the accommodating hole. The earphone may be provided with a receiving coil, which may be disposed on the body 212 of the earphone. The receiving coil is coupled with the transmitting coil, so that transmission of the electric signals is realized.
The wireless charging mode is mainly divided into three modes of magnetic coupling (or electromagnetic induction), magnetic resonance and radio waves. Currently, the mainstream wireless charging standards include QI standard, power entity alliance (Power Matters Alliance, PMA) standard, wireless power alliance (Alliance for Wireless Power, A4 WP). The QI standard and the PMA standard are both wirelessly charged by adopting a magnetic coupling mode. The A4WP standard uses magnetic resonance for wireless charging.
For example, the earphone case 100 may further include a wireless transmission driving circuit and a controller, the wireless transmission driving circuit being connected to the controller and the transmission coil, respectively. The wireless transmission driving circuit is used for converting the direct current output by the second power source 161 into high-frequency alternating current, and converting the high-frequency alternating current into electromagnetic signals (or electromagnetic waves) through a transmission coil or a transmission antenna to be transmitted.
The controller may be implemented by a micro control unit (Micro Control Unit, MCU). The controller may be used to wirelessly communicate with a controller in the headset.
The earphone 200 may further include a voltage conversion circuit, a battery, a charging channel, a controller, and a detection circuit, where the voltage conversion circuit is connected to the receiving coil, and the voltage conversion circuit is configured to convert the ac electric signal received by the receiving coil into a dc electric signal. The charging channel is connected with the output end of the voltage conversion circuit, and the battery is connected with the charging channel.
The controller is used for communicating with the earphone box, feeding back the detected information such as the voltage value and/or the current value on the charging channel, the residual capacity of the battery or the preset full time to the earphone box, and feeding back error information, termination transmission information and the like to the earphone box; in addition, the feedback information may further include an adjustment instruction of the voltage and/or the current determined by the information such as the voltage value and/or the current value on the charging channel, the remaining capacity, or the preset charging time.
The detection circuit is used for detecting a voltage value and/or a current value on the charging channel. The voltage value and/or the current value on the charging channel may refer to a voltage value and/or a current value between the voltage conversion circuit and the earphone battery, that is, an output voltage and/or an output current of the voltage conversion circuit, which is directly applied to the earphone battery to charge the earphone battery. Alternatively, the voltage value and/or the current value on the charging channel may also refer to the voltage value and/or the current value between the receiving coil and the voltage conversion circuit, i.e. the output voltage value and/or the current value of the receiving coil.
The second power source 161 in the case 110 may be charged by an external power source, such as wired or wireless charging by the external power source. The battery of the earphone box may be disposed at the bottom of the box 110, and a charging interface may be disposed at the bottom of the box 110. The charging interface may be a USB interface, a Type-c interface, or a Micro-USB interface, etc., which may be used to connect with the adapter. Or the earphone box battery can be charged through the wireless mode of charging, and the bottom of earphone box can be provided with wireless base that charges. The wireless charging of the earphone box may be similar to the wireless charging structure of the earphone.
The processing unit 130 may be a processor, a microprocessor, a controller, or the like, where the processing unit 130 is connected to the magnetic control unit 120, and the processing unit 130 determines that the earphone is in the box when the magnetic control unit 120 detects a change in voltage or current after being turned on in response to the magnetic field.
The earphone box may further include an indication unit such as an indication lamp or a voice prompter, etc. The indicating unit can be arranged on the box body or the box cover and is connected with the controller, and the indicating unit is used for indicating whether the earphone box is internally provided with the earphone, whether the earphone box is in fault or not and the like. For example, after the earphone is put into the box, the indicator light is green, the earphone is not blue in the indicator light in the earphone box, and the indicator light is red when the earphone box fails.
According to the earphone box provided by the embodiment of the disclosure, the magnetic control unit 120 is arranged on the box body 110, the magnetic control unit 120 can generate the trigger signal under the magnetic field, and the processing unit 130 determines that the earphone is put into the box when receiving the trigger signal, so that whether the earphone provided with the magnetic piece 220 is put into the box or not can be detected, and the cost can be saved due to the low price of the magnetic control unit 120.
The exemplary embodiment of the disclosure further provides an earphone 200, where the earphone 200 is used in the earphone case 100 described above, as shown in fig. 7, the earphone 200 includes an earphone main body 210 and a magnetic member 220, the magnetic member 220 is disposed on the earphone main body 210, the earphone can be stored in the storage portion 111 of the case 110, and when the earphone is stored in the storage portion 111, the magnetic field of the magnetic member 220 triggers the magnetic control unit 120.
The earphone provided by the embodiment of the disclosure is provided with the magnetic piece 220 on the earphone main body 210, the magnetic piece can generate a magnetic field, the magnetic piece can be matched with the magnetic control unit 120 arranged on the box body 110, the magnetic control unit 120 can generate a trigger signal under the magnetic field, and the processing unit 130 determines that the earphone is put into the box when receiving the trigger signal, so that whether the earphone provided with the magnetic piece 220 is put into the box can be detected, and the cost can be saved due to the low price of the magnetic control unit 120.
The earphone body 210 may include: earplug 211 and body 212, body 212 and earplug 211 are connected, and magnetic element 220 is disposed on body 212. An electroacoustic assembly may be disposed within the earpiece 211, and may include a diaphragm and an excitation circuit, which may be coupled to a battery within the earpiece that provides power to the excitation circuit. The body 212 has a receiving cavity 2121, and the magnetic member 220 is disposed in the receiving cavity 2121.
The earphone 200 is a bluetooth earphone, a bluetooth communication unit is arranged in the earphone 200, the bluetooth communication unit is connected with the excitation circuit, and the bluetooth communication unit is used for receiving control signals from electronic equipment matched with the bluetooth communication unit. The Bluetooth communication unit transmits a control signal to the excitation circuit, and the excitation circuit generates an excitation signal according to the control signal, and the excitation signal excites the vibrating diaphragm to generate a sound signal.
The earplug 211 may further include an earplug housing, and a plurality of through holes may be formed in the earplug housing, the through holes being opposite to the diaphragm, and sound generated by vibration of the diaphragm being transmitted to the outside of the earplug 211 through the through holes.
The body 212 has a body shell that may be integrally formed with the earplug shell. The housing has a hollow cavity inside, and the magnetic member 220 is attached to the inner side of the cavity. The magnetic member 220 may be a flexible magnet that is attached to a sidewall of the housing 2121. The space inside the earphone can be saved through the flexible magnet attached to the side wall of the accommodating cavity 2121, and more space is reserved for setting a battery, so that the endurance of the earphone is improved.
The exemplary embodiment of the present disclosure further provides an earphone box assembly, as shown in fig. 8, where the earphone box assembly includes an earphone box 100 and an earphone 200, the earphone box includes a box body 110, a magnetic control unit 120 and a processing unit 130, a containing portion 111 for containing the earphone is provided on the box body 110, the magnetic control unit 120 is provided on one side of the containing portion 111, the magnetic control unit 120 can be turned on in response to a magnetic field and generates a trigger signal, the processing unit 130 is connected with the magnetic control unit 120, and the processing unit 130 determines that the earphone is put into the box when receiving the trigger signal; the earphone 200 includes an earphone main body 210 and a magnetic member 220, the magnetic member 220 is disposed on the earphone main body 210, the earphone can be accommodated in the accommodating portion 111 of the box body 110, and when the earphone is accommodated in the accommodating portion 111, the magnetic field of the magnetic member 220 triggers the magnetic control unit 120.
According to the earphone and the assembly provided by the embodiment of the disclosure, the magnetic control unit 120 is arranged on the box body 110, the magnetic piece 220 is arranged on the earphone, the magnetic piece 220 can generate a magnetic field, after the earphone enters the earphone box, the magnetic control unit 120 can generate a trigger signal under the magnetic field, the processing unit 130 determines that the earphone enters the box when receiving the trigger signal, so that whether the earphone provided with the magnetic piece 220 enters the box or not can be detected, and the cost can be saved due to low price of the magnetic control unit 120.
The earphone box 100 may further include a box cover 140 and a power supply unit 160, wherein the box cover 140 may be connected to the box body 110, and the box cover 140 is used for shielding the accommodating portion 111 on the box body 110 to prevent the earphone disposed on the accommodating portion 111 from being lost or damaged. The cover 140 may be disposed at one side of the case body 110 where the receiving part 111 is opened. The power supply unit 160 is configured to supply power when the earphone is charged, and the power supply unit 160 may include a second power source 161 and a charging circuit through which an electric signal of the second power source 161 is transmitted to the earphone when charged. The power supply unit 160 may be disposed at a side of the case 110 remote from the opening of the receiving portion 111.
The magnetic control unit 120 may include a first power supply 121 and a magnetic switch 122, one end of the magnetic switch 122 is connected to the first power supply 121, the other end of the magnetic switch 122 is connected to the processing unit 130, and when the magnetic switch 122 is in a magnetic field, the magnetic switch 122 is turned on, and the first power supply 121 outputs a trigger signal to the processing unit 130.
The first power source 121 may be connected to the second power source 161, the second power source 161 may be a battery provided in the case 110, and the first power source 121 may be a step-down power source. Since only a small voltage or current is needed to detect whether the magnetic control unit 120 is turned on. Therefore, in order to avoid impact of a large current or voltage signal on circuit devices such as the processing unit 130, the voltage of the signal output from the battery (the second power source 161) may be reduced by the step-down power source (the first power source 121).
The magnetically sensitive switch 122 includes: the first magnetizable tab 1221 and the second magnetizable tab 1222, the second magnetizable tab 1222 and the first magnetizable tab 1221 are disposed opposite to each other, the first magnetizable tab 1221 and the second magnetizable tab 1222 are normally open, and the first magnetizable tab 1221 and the second magnetizable tab 1222 are closed when the magnetic switch 122 is in a magnetic field.
The first and second magnetizable clips 1221 and 1222 are in a non-magnetized state in a non-magnetic field environment, and the first and second magnetizable clips 1221 and 1222 are in a normally open state. The first and second magnetizable clips 1221, 1222 are magnetized when in a magnetic field environment, and the polarity of the first magnetizable clip 1221 and the polarity of the second magnetizable clip 1222 are opposite. The first magnetizable tab 1221 and the second magnetizable tab 1222 are magnetized and then attracted to each other by magnetic force, and the magnetic switch 122 is closed. When the magnetic field is removed (the earphone is removed), the first and second magnetizable springs 1221 and 1222 demagnetize, and the magnetically sensitive switch 122 is opened.
The box 110 is provided with a receiving cavity, and the first magnetizable spring sheet 1221 and the second magnetizable spring sheet 1222 are disposed in the receiving cavity. The accommodating cavity is a sealed cavity, and inert gas is filled in the accommodating cavity or the accommodating cavity is a vacuum accommodating cavity. By arranging the accommodating cavity on the box body 110, the first magnetizable shrapnel 1221 and the second magnetizable shrapnel 1222 are arranged in the accommodating cavity, thereby avoiding the need of separately manufacturing the shell of the magnetic control unit 120, saving the space of the box body 110 and being beneficial to the miniaturization of the earphone box.
The earphone body 210 may include: earplug 211 and body 212, body 212 and earplug 211 are connected, and magnetic element 220 is disposed on body 212. An electroacoustic assembly may be disposed within the earpiece 211, and may include a diaphragm and an excitation circuit, which may be coupled to a battery within the earpiece that provides power to the excitation circuit.
The earphone 200 is a bluetooth earphone, a bluetooth communication unit is arranged in the earphone 200, the bluetooth communication unit is connected with the excitation circuit, and the bluetooth communication unit is used for receiving control signals from electronic equipment matched with the bluetooth communication unit. The Bluetooth communication unit transmits a control signal to the excitation circuit, and the excitation circuit generates an excitation signal according to the control signal, and the excitation signal excites the vibrating diaphragm to generate a sound signal.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (9)
1. An earphone box, characterized in that the earphone box comprises:
the earphone comprises a box body, wherein the box body is provided with a containing part for containing the earphone;
the magnetic control unit is arranged on the box body, can be conducted in response to a magnetic field and generates a trigger signal;
the processing unit is connected with the magnetic control unit and determines that the earphone is put into the box when receiving the trigger signal;
the accommodating part comprises a first accommodating part and a second accommodating part which are arranged on the box body, a magnetic control unit is arranged on the side wall of the first accommodating part, and a magnetic control unit is arranged on the side wall of the second accommodating part;
the earphone box further includes:
a magnetic shielding layer disposed between the first and second accommodating portions; the magnetic shielding layer is electrified by the magnetic control unit when the magnetic control unit is triggered;
the processing unit is specifically configured to continuously detect an on-off state of the magnetic control units on two sides of the magnetic shielding layer when the shielding layer is electrified, determine that the earphone is in the box when the magnetic control units are on, and determine that the earphone is not in the box when the magnetic control units are off.
2. The earphone case of claim 1, wherein the magnetic control unit comprises:
a first power supply;
the magnetic switch is connected with the first power supply at one end, the processing unit is connected with the other end of the magnetic switch, and when the magnetic switch is in a magnetic field, the magnetic switch is turned on, and the first power supply outputs a trigger signal to the processing unit.
3. The earphone pod of claim 2, wherein the magnetically sensitive switch comprises:
a first magnetizable leaf spring;
the second magnetizable elastic sheet is arranged opposite to the first magnetizable elastic sheet, the first magnetizable elastic sheet and the second magnetizable elastic sheet are normally open, and when the magnetically sensitive switch is in a magnetic field, the first magnetizable elastic sheet and the second magnetizable elastic sheet are closed;
the box body is provided with a containing cavity, and the first magnetizable elastic sheet and the second magnetizable elastic sheet are arranged in the containing cavity.
4. The earphone pod of claim 3, wherein the receiving chamber is a sealed chamber, wherein the receiving chamber is filled with an inert gas or wherein the receiving chamber is a vacuum receiving chamber.
5. The earphone pod of claim 1, wherein the earphone pod further comprises:
the power supply unit comprises a second power supply and a charging circuit, wherein the charging circuit is respectively connected with the second power supply and the processing unit, and the charging circuit is used for charging the earphone after the processing unit determines that the earphone is put into the box.
6. The earphone pod of claim 5, wherein the second power source and the processing unit are disposed on a side of the pod away from the opening of the receiving portion, wherein a first routing hole and a second routing hole are disposed on the pod, wherein the first routing hole extends from the magnetic control unit to the second power source, and wherein the second routing hole extends from the magnetic control unit to the processing unit.
7. An earphone for an earphone cassette according to any one of claims 1 to 6, comprising:
an earphone body;
the magnetic piece is arranged on the earphone main body, the earphone can be accommodated in the accommodating part of the box body, and when the earphone is accommodated in the accommodating part, the magnetic field of the magnetic piece triggers the magnetic control unit; the accommodating part comprises a first accommodating part and a second accommodating part which are arranged on the box body, a magnetic control unit is arranged on the side wall of the first accommodating part, and a magnetic control unit is arranged on the side wall of the second accommodating part; the earphone box further comprises a magnetic shielding layer, wherein the magnetic shielding layer is arranged between the first accommodating part and the second accommodating part; the magnetic shielding layer is electrified by the magnetic control unit when the magnetic control unit is triggered; the earphone box further comprises a processing unit, wherein the processing unit is used for continuously detecting the on-off state of the magnetic control units on two sides of the magnetic shielding layer under the condition that the shielding layer is electrified, determining that the earphone is in the box under the condition that the magnetic control units are conducted, and determining that the earphone is not in the box under the condition that the magnetic control units are disconnected.
8. The headset of claim 7, wherein the headset body comprises:
an earplug;
the earphone comprises an earphone body, wherein the earphone body is connected with the earplug, the earphone body is provided with a hollow cavity, the magnetic part is a flexible magnet, and the flexible magnet is attached to the inner wall of the cavity.
9. An earphone-case assembly, characterized in that the earphone-case assembly comprises:
the earphone box comprises a box body, a magnetic control unit and a processing unit, wherein the box body is provided with a containing part for containing the earphone, the magnetic control unit is arranged on one side of the containing part, the magnetic control unit can be conducted in response to a magnetic field and generates a trigger signal, the processing unit is connected with the magnetic control unit, and the processing unit determines that the earphone is in the box when receiving the trigger signal; the accommodating part comprises a first accommodating part and a second accommodating part which are arranged on the box body, a magnetic control unit is arranged on the side wall of the first accommodating part, and a magnetic control unit is arranged on the side wall of the second accommodating part; the earphone box further comprises a magnetic shielding layer, wherein the magnetic shielding layer is arranged between the first accommodating part and the second accommodating part; the magnetic shielding layer is electrified by the magnetic control unit when the magnetic control unit is triggered;
the processing unit is specifically configured to continuously detect an on-off state of the magnetic control units on two sides of the magnetic shielding layer when the shielding layer is electrified, determine that the earphone is in the box when the magnetic control units are on, and determine that the earphone is not in the box when the magnetic control units are off;
the earphone comprises an earphone main body and a magnetic part, wherein the magnetic part is arranged on the earphone main body, the earphone can be stored in a storage part of the box body, and when the earphone is stored in the storage part, the magnetic field of the magnetic part triggers the magnetic control unit.
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| CN202011461945.5A CN112601149B (en) | 2020-12-11 | 2020-12-11 | Earphone, earphone box and earphone box assembly |
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| CN202011461945.5A CN112601149B (en) | 2020-12-11 | 2020-12-11 | Earphone, earphone box and earphone box assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN216215931U (en) * | 2021-04-30 | 2022-04-05 | Oppo广东移动通信有限公司 | Earphone box and earphone external member |
| CN115551243A (en) * | 2021-06-30 | 2022-12-30 | 华为技术有限公司 | Receiver and wireless audio equipment subassembly |
| CN113425060B (en) * | 2021-07-30 | 2022-07-29 | 维沃移动通信有限公司 | Earphone box |
| CN113490104B (en) * | 2021-08-06 | 2024-03-22 | 维沃移动通信有限公司 | Wireless earphone assembly |
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