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EP-4468738-B1 - EARPHONE BOX AND EARPHONE

EP4468738B1EP 4468738 B1EP4468738 B1EP 4468738B1EP-4468738-B1

Inventors

  • SUI, Liguo
  • LIU, CHAO

Dates

Publication Date
20260513
Application Date
20220225

Claims (15)

  1. An earphone box assembly, comprising: an earphone (300), comprising an earphone body (310); and an earphone box (1000), comprising: a box body (1001) defining an accommodating groove (100) configured to accommodate an earphone (300), the accommodating groove (100) being provided with an interface (130) configured to be electrically coupled to the earphone (300); and a box magnet (200) mounted on the box body (1001) and configured as a multipole magnet; wherein the earphone (300) comprises an earphone magnet (310) which has the same number of poles as the box magnet (200), and the box magnet (200) is configured to attract and couple with the earphone magnet (310); characterized in that an attraction face (211, 221) of the box magnet (200) is an inclined face allowing the earphone (300) to be placed in the accommodating groove (100) spaced apart from a bottom of the accommodating groove (100).
  2. The earphone box assembly according to claim 1, wherein each of the box magnet (200) and the earphone magnet (310) is a two-pole magnet.
  3. The earphone box assembly according to claim 1 or 2, wherein the accommodating groove (100) comprises a left accommodating groove (110) configured to accommodate a left earphone and a right accommodating groove (120) configured to accommodate a right earphone, the box magnet (200) comprises a first box magnet (210) and a second box magnet (220) arranged in the box body (1001), the first box magnet (210) is configured to attract and couple with the earphone magnet (310) of the left earphone, and the second box magnet (220) is configured to attract and couple with the earphone magnet (310) of the right earphone.
  4. The earphone box assembly according to claim 3, wherein the left accommodating groove (110) is located at a left portion of the box body (1001), and the right accommodating groove (120) is located at a right portion of the box body (1001), the left accommodating groove (110) and the right accommodating groove (120) are arranged symmetrically in a mirrored manner in a left-right direction (B).
  5. The earphone box assembly according to claim 3 or 4, wherein the box body (1001) comprises a first inclined face (111) constituting at least part of a side wall of the left accommodating groove (110) and a second inclined face (121) constituting at least part of a side wall of the right accommodating groove (120), the first box magnet (210) is arranged on the first inclined face (111) with an outer surface (211) of the first box magnet (210) being flush with the first inclined face (111), and the second box magnet (220) is arranged on the second inclined face (121) with an outer surface (221) of the second box magnet (220) being flush with the second inclined face (121).
  6. The earphone box assembly according to any one of claims 3 to 5, wherein a polarity distribution at an outer surface (211) of the first box magnet (210) is different from a polarity distribution at the outer surface (221) of the second box magnet (220).
  7. The earphone box assembly according to claim 6, wherein poles of the first box magnet (210) are opposite to each other, poles of the second box magnet (210) are opposite to each other, and the poles of the first box magnet (210) are opposite to corresponding poles of the second box magnet (220) in position.
  8. The earphone box assembly according to any one of claims 3 to 7, wherein the interface (130) comprises a left interface (131) arranged in the left accommodating groove (110) and a right interface (132) arranged in the right accommodating groove (120), and an axis of the left interface (131) and an axis of the right interface (132) are arranged obliquely.
  9. The earphone box assembly according to claim 8, wherein an angle included between the axis of each of the left interface (131) and the right interface (132) and a horizontal plane is 45° -55°.
  10. The earphone box assembly according to any one of claims 5 to 9, wherein each of the first inclined face (111) and the second inclined face (121) is a frosted face.
  11. The earphone box assembly according to any one of claims 1 to 10, wherein the earphone box (1000) further comprises a box cover (1002) coupled to the box body (1001), the box body (1001) further comprises a lower mounting cavity (140) separated from the accommodating groove (100), the box cover (1002) defines an upper mounting cavity (150), the lower mounting cavity (140) is provided with a Hall sensor (141), and the upper mounting cavity (150) is provided with a magnet (151) cooperating with the Hall sensor (141) using the Hall effect.
  12. The earphone box assembly according to claim 11, wherein the upper mounting cavity (150) is provided with a first attraction magnet (152), the lower mounting cavity (140) is provided with a second attraction magnet (142), and the second attraction magnet (142) is configured to attract and couple with the first attraction magnet (152) when the box cover (1002) closes the accommodating groove (100).
  13. The earphone box assembly according to any one of claims 1 to 12, wherein the interface (130) is provided with a pogopin having two spring pins (133), and the box magnet (200) is arranged between the two spring pins (133) of the pogopin.
  14. The earphone box assembly according to any one of claims 5 to 7, wherein the interface comprises a left interface (131) arranged in the left accommodating groove (110) and a right interface (132) arranged in the right accommodating groove (120), an axis of the left interface (131) is perpendicular to the first inclined face (111), and an axis of the right interface (132) is perpendicular to the second inclined face (121).
  15. The earphone box assembly according to claim 14, wherein the left interface (131) is arranged on the first inclined face (111) and adjacent to the first box magnet (210), and the right interface (132) is arranged on the second inclined face (121) and adjacent to the second box magnet (220).

Description

TECHNICAL FIELD The present invention relates to the field of earphone box technologies, and more particularly, to an earphone box and an earphone. BACKGROUND Existing TWS (true wireless stereo) earphones are mainly classified into two types: earphones with a bud shape and earphones with a stem shape. The earphone is in contact with and compresses a pogopin (also referred to as pogo pin) in an earphone box by a copper column on the earphone when it is placed into the earphone box, to realize a charging process of the earphone by the earphone box. Ensuring that the copper column of the earphone is in full contact with the pogopin of the earphone box to realize the charging of the earphone when the earphone is placed into the earphone box, is typically implemented as follows: an inner housing of the earphone box has a shape similar to a shape of the earphone; a position of the earphone in the earphone box is restricted by the shape; moreover, in order to ensure the charging reliability of the placed earphone, the copper column of the earphone and the pogopin of the earphone charging box are both oriented along a vertical direction, which is consistent with the gravity direction of the earphone, to reduce a mutual dislocation between the copper column and the pogopin caused by the gravity component. Patent publication US 2020/233046 A1 shows an earphone box with magnets of opposite polarities for keeping a closed state. A dual output unipolar Hall sensor in the earphone box detects a change of magnetic flux to determine closed and open states of the earphone box to control charging operations, wireless data communications and broadcasting operations. Further prior art of earphone boxes are known from utility model CN 213 152 320 U and patent publication US 2020/107100 A1. SUMMARY The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, embodiments of the present invention provide an earphone box assembly. The earphone box according to an aspect of the present invention includes a box body and a box magnet with the set of features as defined in claim 1. Preferred embodiments of earphone box assemblies are defined in dependent claims 2 - 15. The earphone box according to embodiments of the present invention, when compared to conventional approaches, has the advantages of providing a better or improved positioning effect, allowing for a more stable charging, realizing a smaller volume and allowing for an easier carrying. The earphone according to embodiments of the present invention can be obliquely placed in the accommodating groove in the earphone box, thereby improving the positioning effect and allowing the earphone to be charged more stably. Moreover, after the earphone is placed in the accommodating groove, the overall volume is small and the earphone is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view of an earphone box according to an embodiment of the present invention.Fig. 2 is a top view of an earphone box according to an embodiment of the present invention.Fig. 3 is a sectional view of an earphone box according to an embodiment of the present invention.Fig. 4 is another sectional view of an earphone box according to an embodiment of the present invention. Reference numerals: earphone box 1000, box body 1001, box cover 1002, accommodating groove 100, left accommodating groove 110, first inclined face 111, right accommodating groove 120, second inclined face 121, interface 130, left interface 131, right interface 132, spring pin 133, lower mounting cavity 140, Hall sensor 141, second attraction magnet 152, upper mounting cavity 150, Hall magnet 151, first attraction magnet 152, box magnet 200, first box magnet 210, outer surface 211of the first box magnet, second box magnet 220, outer surface 221 of the second box magnet, earphone 300, earphone magnet 310. DETAILED DESCRIPTION Embodiments of the present invention are described in detail below, and examples of the described embodiments are illustrated in accompanying drawings. The following embodiments described with reference to the accompanying drawings are exemplary and are intended to explain the present invention, rather than limit the present invention. The earphone box in the related art has the disadvantages of a low utilization rate of an internal space, a large overall volume and inconvenient carrying, and it is inconvenient to take the earphone out of the earphone box. An earphone box 1000 according to embodiments of the present invention is described below with reference to the accompanying drawings. As illustrated in Figs. 1 to 4, the earphone box 1000 according to embodiments of the present invention includes a box body 1001 and a box magnet 200. The box body 1001 defines an accommodating groove 100 for accommodating an earphone 300, and the accommodating groove 100 is provided with an interface 130 electrically coupled to the earphone 300. The box