Loudspeaker apparatus

1. A loudspeaker apparatus, comprising:

an ear hook including a first plug end and a second plug end, the ear hook being configured to surround a user's ear;

a core housing for accommodating an earphone core, the core housing being fixed to the first plug end and being located at the auricle of the user's ear, without blocking or covering the ear canal of the user's ear; and a circuit housing for accommodating a control circuit or a battery, the circuit housing being fixed to the second plug end, the control circuit or the battery driving the earphone core to vibrate to generate sound, wherein the earphone core further includes a magnetic circuit component generating a first magnetic field, the magnetic circuit component including:

a first magnetic unit configured to generate a second magnetic field;

a first magnetically conductive unit; and

at least one second magnetic unit, the at least one second magnetic unit surrounding the first magnetic unit and forming a magnetic gap with the first magnetic unit, a magnetic field strength of the first magnetic field in the magnetic gap being greater than a magnetic field strength of the second magnetic field in the magnetic gap.

2. The loudspeaker apparatus of claim 1 , wherein the core housing outputs the sound from two sound outlets on the core housing, and sound waves at the two sound outlets have opposite phases.

3. The loudspeaker apparatus of claim 1 , further comprising:

outlets at specific positions of the core housing to form two sets of dual sound sources, a first set of the dual sound sources being used to generate low frequency sounds, a second set of the dual sound sources being used to generate high frequency sounds.

4. The loudspeaker apparatus of claim 1 , wherein the ear hook further includes:

an elastic metal wire;

a wire;

a fixed sleeve, the fixed sleeve fixing the wire on the elastic metal wire; and

a protective sleeve being formed, by injection molding, on periphery of the elastic metal wire, the wire, the fixed sleeve, the first plug end, and the second plug end.

5. The loudspeaker apparatus of claim 4 , wherein

the first plug end and the second plug end are formed, by injection molding, at both ends of the elastic metal wire respectively,

the first plug end and the second plug end are arranged with a first wiring channel and a second wiring channel respectively, and

the wire extends along the first wiring channel and the second wiring channel.

6. The loudspeaker apparatus of claim 5 , wherein

the first wiring channel includes a first wiring groove and a first wiring hole connecting the first wiring groove and an outer end surface of the first plug end,

the wire extends along the first wiring groove and the first wiring hole and is exposed on the outer end surface of the first plug end,

the second wiring channel includes a second wiring groove and a second wiring hole connecting the second wiring groove and the outer end surface of the first plug end, and

the wire extends along the second wiring groove and the second wiring hole and is exposed on an outer end surface of the second plug end.

7. The loudspeaker apparatus of claim 4 , wherein the ear hook includes at least two fixed sleeves spaced apart along the elastic metal wire.

8. The loudspeaker apparatus of claim 1 , wherein

the core housing is arranged with a first socket connecting with an outer end surface of the core housing,

a stopping block is arranged on an inner sidewall of the first socket, and

the first socket is connected to the first plug end.

9. The loudspeaker apparatus of claim 8 , wherein the first plug end includes:

an inserting portion being at least partially inserted into the first socket and abutting against an outer side surface of the stopping block; and

two elastic hooks being arranged on a side of the inserting portion facing inside of the core housing, wherein:

the two elastic hooks are brought together under action of external thrust and the stopping block, and

after passing through the stopping block, the two elastic hooks are elastically restored to be stuck on an inner surface of the stopping block to realize the fixation of the core housing and the first plug end.

10. The loudspeaker apparatus of claim 9 , wherein

the inserting portion is partially inserted into the first socket, and

an exposed part of the inserting portion is arranged in a stepped manner to form an annular table surface spaced apart from the outer end surface of the core housing.

11. The loudspeaker apparatus of claim 4 , wherein the ear hook further includes a housing sheath integrally formed with the protective sleeve, the housing sheath wrapping around periphery of the circuit housing.

12. The loudspeaker apparatus of claim 1 , wherein

a housing panel of the core housing and the earphone core are in a transmission connection, and

all or part of the housing panel is used to contact or abut a user's body to conduct a sound generated by the vibration of the earphone core.

13. The loudspeaker apparatus of claim 12 , wherein when a straight line of a driving force generated by the earphone core has a positive direction pointing to outside of the loudspeaker apparatus from the housing panel and a normal line of the housing panel has a positive direction pointing to the outside of the loudspeaker apparatus, an angle between the two lines in their positive direction is an acute angle.

14. The loudspeaker apparatus of claim 12 , wherein

the earphone core includes a coil and a magnetic circuit system, and

an axis of the coil or the magnetic circuit system is not parallel to a normal line of the housing panel, the axis being perpendicular to a radial plane of the coil or the magnetic circuit system.

15. The loudspeaker apparatus of claim 12 , wherein

a driving force generated by the earphone core has a component in a first quadrant or a third quadrant of an XOY plane coordinate system, wherein

an origin O of the XOY plane coordinate system is on a contact surface between the loudspeaker apparatus and a human body, an X-axis of the XOY plane coordinate system is parallel to a coronal axis of the human body, a Y-axis of the XOY plane coordinate system is parallel to a sagittal axis of the human body, a positive direction of the X-axis faces outside of the human body, and a positive direction of the Y-axis faces front of the human body.

16. The loudspeaker apparatus of claim 1 , wherein the magnetic circuit component further includes:

a second magnetically conductive unit; and

at least one third magnetic unit being connected to the second magnetically conductive unit and the at least one second magnetic unit.

17. The loudspeaker apparatus of claim 16 , wherein the magnetic circuit component further includes:

at least one fourth magnetic unit being located below the magnetic gap and connected to the first magnetic unit and the second magnetically conductive unit.

18. The loudspeaker apparatus of claim 16 , wherein

the first magnetically conductive unit is connected to an upper surface of the first magnetic unit,

the second magnetically conductive unit includes a bottom plate and a sidewall; and

the first magnetic unit is connected to the bottom plate of the second magnetically conductive unit.

19. The loudspeaker apparatus of claim 16 , further comprising:

at least one electrically conductive unit being connected to at least one unit of the first magnetic unit, the first magnetically conductive unit, or the second magnetically conductive unit.