WO2019076357A1

WO2019076357A1 - Capsule-type charging storage box for tws earphones

Info

Publication number: WO2019076357A1
Application number: PCT/CN2018/110947
Authority: WO
Inventors: 张海星; 李中平
Original assignee: 深圳科甲技术有限公司
Priority date: 2017-10-20
Filing date: 2018-10-19
Publication date: 2019-04-25
Also published as: CN107734417A

Abstract

Disclosed is a capsule-type charging storage box for TWS earphones, which is small in size and of a bidirectionally pulling type. The capsule-type charging storage box for TWS earphones comprises a charging circuit arranged in a capsule and storage chambers for storing earphones, wherein a left and a right end of the capsule are respectively provided with a left capsule cap and a right capsule cap which are sheathed over the capsule and are capable of moving along the capsule. The left capsule cap and the right capsule cap move toward each other so that the capsule can be completely encapsulated in a closed space enclosed by the left capsule cap and the right capsule cap, and the left capsule cap and the right capsule cap move away from each other so that the storage chambers in the capsule are exposed to the outside. A USB charging connector for charging connection and the charging circuit arranged in the charging storage box are configured to be a movable and separable electric connection structure, so that the left and right capsule caps can move toward or away from each other. The capsule-type charging storage box for TWS earphones is rational in structure, ingenious in design and stable in performance. Fastening structures capable of being quickly separated or closed are further provided between the capsule caps and the capsule, so that it is convenient to store and take out the earphones, and the closed charging storage box is stably closed. The structure can effectively improve space utilization in the capsule.

Description

Capsule charging storage box for TWS headphones

Technical field

The present invention relates to a charging device for a TWS earphone, and more particularly to a capsule charging device that is compact and can both charge a TWS earphone and accommodate the earphone therein.

Background technique

TWS headphones (also known as real wireless stereo or Bluetooth headsets, English name True Wireless Stereo, referred to as TWS headsets), because there is no wire binding, easy to operate, easy to carry, more and more popular, because these headphones have built-in batteries, Therefore, always charge it.

In the prior art, when charging the earphone, it is usually placed in a charging box. The charging box has a pull-type type and a flip type. The charging box of these structures has the following disadvantages:

1) Clamshell charging box: large size, traditional shape is not novel, no freshness.

2) Pull-type charging box: usually one-side pull type, between the side of the USB charging connector and the box of the charging box, because the charging circuit and the USB charging connector need to be connected by wires to be a fixed connection structure or One piece structure. Because it is single-sided drawing, the exposed internal space of the charging box is limited. In order to conveniently put two earphones into the charging box, the volume of the charging box must be made larger to make one side The storage compartment storing the two earphones can be exposed when pulled outward to the maximum limit position. This structure leads to an increase in its volume and an unattractive appearance.

If the space utilization of the casing is increased by shortening the portion having the side of the USB charging connector, the shape of the entire charging case will be lost in symmetry.

Summary of the invention

The technical problem to be solved by the present invention is to provide a capsule type charging storage case which is small in size and which is a two-way pull type TWS earphone.

In order to solve the above technical problems, the technical solution adopted by the present invention is:

The capsule type charging storage box of the TWS earphone of the present invention comprises a charging circuit disposed in the capsule body and a storage chamber for storing the TWS earphone, and is respectively sleeved on the capsule body at the left and right ends of the capsule body and movable along the capsule body The left and right caps, the left cap and the right cap move oppositely to completely enclose the capsule in a closed space enclosed by the left cap and the right cap, and the left cap and the right cap move back The storage chamber in the capsule can be exposed to the outside.

On the outer end surface of the left or right capsule, a USB charging connector is provided, and a bottom end surface in the left capsule and a left end surface of the capsule are provided with a tightly binding the left capsule to the capsule. The solid structure; the bottom end surface in the right capsule and the right end surface of the capsule are provided with the fastening structure for tightly engaging the right capsule on the capsule.

The fastening structure is a magnetic component disposed between the capsule cap and the capsule or a quick-release male and female fastener disposed between the capsule and the capsule.

The left cap and the right cap are both formed by a cap body and a slip ring, and the slip ring is fastened in the inner port of the cap body. On the radially inner side wall of the slip ring, a rail block protruding toward the axis of the slip ring is provided. Correspondingly, a chute is formed on the capsule along its axis, and the rail block is embedded in the chute and can carry the cap body to reciprocate along the chute.

The rail blocks are two and are symmetrically disposed on the axis of the slip ring; correspondingly, the chutes are two and symmetrically disposed on the axis of the capsule.

The cross-sectional shape of the left and right caps is circular, elliptical, triangular, rectangular or other regular polygon.

The capsule body is composed of an upper half shell and a lower half shell, and the upper half shell and the lower half shell are tightly fastened together by a quick disassembly structure disposed therebetween.

The USB charging connector is fixed in the corresponding capsule, and the external interface is exposed through a jack disposed on the outer end surface of the corresponding capsule, and the inner interface is a female interface of the quick electrical connection; correspondingly, the capsule is a male insert inserting into the female interface with a quick electrical connection on one side of the corresponding capsule, the male insert being mounted on a card fixed to the capsule, the inner end of the male insert and the charging circuit Electrical connection.

The invention adopts a left capsule and a right capsule which are sleeved at both ends of the capsule and can be pulled and moved relative to the capsule, so that the combination of the two capsules and the capsule can accommodate both the TWS earphone and the storage. The capsule-type charging storage case that is charged during the TWS earphone becomes compact and delicate. When it is necessary to put two earphones into the charging storage box at the same time (or simultaneously withdraw from the charging storage box), it is only necessary to move the left capsule and the right capsule back (ie, pull back) a shorter distance. The storage chamber for storing the earphones in the capsule can be exposed; when the earphones are removed or placed, the left capsule and the right capsule are moved toward each other (ie, pushed in opposite directions), and the entire capsule can be completely packaged. In the closed space enclosed by the left capsule and the right capsule, the structure can effectively improve the space utilization in the capsule.

The present invention sets a USB charging connector for a charging connection and a charging circuit built in the charging storage case to be a movable clutch electrical connection structure, so that the left capsule and the right capsule are moved toward or away from each other.

The invention has reasonable structure, ingenious design and stable performance. Moreover, since a fastening structure capable of quick separation or closing is provided between the capsule cap and the capsule body, the access earphone is conveniently operated, and the closed storage storage box is closed and stable. There is no accidental opening between the cap and the capsule due to free sliding.

DRAWINGS

1 is a schematic view showing the outline of a capsule type charging storage case of the present invention.

Figure 2 is a schematic view of the storage case of Figure 1 when the two-way pull is opened.

Figure 3 is a schematic view of the storage case of Figure 1 when pulled leftward.

4 is a schematic exploded view of the left and right caps and capsules of FIG. 1.

Figure 5 is an exploded perspective view of the cap, slip ring and USB charging connector on the left cap.

Figure 6 is an exploded perspective view of the cap body and the slip ring on the right cap.

FIG. 7 is an enlarged cross-sectional view taken along line C-C of FIG. 6 after the cap body and the slip ring are assembled.

Fig. 8 is an enlarged schematic view showing the capsule body of Fig. 4.

Figure 9 is an enlarged cross-sectional view taken along line A-A of Figure 1.

Figure 10 is an enlarged cross-sectional view taken along line B-B of Figure 3;

The reference numerals are as follows:

The capsule 1, the notch 11, the window 12, the chute 13, the tight fitting member 14, the storage chamber 15, the upper half shell 2, the cavity 21, the end wall 22, the lower half shell 3, the ship compartment 31, End ship wall 32, positioning post 33, positioning hole 34, electric contact pin 4, PCB board 41, left cap 5, cap 51, slip ring 52, rail block 53, jack 54, right capsule 6, USB The charging connector 7, the USB electrical board 71, the magnetic block 8, the circuit board 9, the string board 91, and the battery 92.

Detailed ways

As shown in FIG. 1-4, the capsule charging storage case of the TWS earphone of the present invention is mainly composed of a capsule 1 and a left capsule 5 and a right capsule 6 which are sleeved on the capsule 1, and the capsule 1 is left. The cap 5 and the right cap 6 are made of plastic, metal or wood, preferably injection molded from a lower cost plastic.

The left capsule 5 and the right capsule 6 can move toward or away from each other on the capsule 1. When the left and right capsules move toward each other, the inner end of the left and right capsules are in the docking position, the entire capsule 1 is Wrapped by the closed space enclosed by the left and right capsules; when the left and right capsules are moved back to the extreme position, two TWS can be arranged in the capsule 1 and arranged side by side along the axial direction of the capsule 1 The storage compartment 15 of the earphone is in a bare visible state.

Of course, the left cap 5 and the right cap 6 can be moved separately and the charging storage case is in a partially open state.

The left capsule cap 5 and the right capsule cap 6 have a circular, elliptical, triangular, rectangular or other regular polygonal shape. The present invention is preferably circular, and the left capsule 5 and the right capsule 6 are opposite to each other and closed. After that, its shape resembles a capsule shape.

1, capsule 1

As shown in Figures 2, 4, 8, 9, and 10, the capsule 1 is composed of an upper half shell 2 and a lower half shell 3, the upper half shell 2 has an outline of a "concave" shape, and the middle portion of the upper half shell 2 is a cavity 21 recessed downwardly, the opening of the storage chamber 15 is placed in the cavity 21, and the ends of the upper half shell 2 are semicircular end walls 22, which are opened on at least one surrounding wall There is a gap 11. The lower half shell 3 has a shape similar to a boat shape, and the middle portion is a ship's stern portion 31. The both ends thereof are also semicircular end boat walls 32, and the end boat wall 32 on the side corresponding to the notch 11 is also notched. 11.

An "L"-shaped inwardly recessed and elongated strip-shaped step groove and a plurality of tight-fitting button holes (not shown) are provided on the bottom sides of the upper half shell 2, and likewise, in the lower half shell 3 The top edge of the two sides is also provided with an "L"-shaped inwardly concave and elongated step groove and a plurality of tight fitting members 14, and a positioning post 33 is disposed on the lower end surface of the end surrounding wall 22, corresponding to A positioning hole 34 through which the positioning post 33 can be inserted is provided on the upper end surface of the end boat wall 32.

When the upper half shell 2 and the lower half shell 3 are butt jointed together, the two step grooves on the corresponding side constitute a chute 13 parallel to the axis of the capsule body 1.

The plurality of tight fitting clips 14 are inserted into the corresponding tight fitting holes, and the upper half shell 2 and the lower half shell 3 are fastened together to form a complete capsule 1.

At this time, the notch 11 on the upper half shell 2 and the notch 11 in the lower half shell 3 enclose an annular closed window opening 12.

A string board 91, a battery 92, and a circuit board 9 including a charging circuit are disposed in the ship compartment 31, wherein the battery 92 is electrically connected to the circuit board 9 through a string board 91, and the charging circuit is disposed on the storage compartment 15 The electrical contacts charge the TWS headset placed in the storage compartment 15.

A small PCB board 41 (also referred to as a card board) is disposed on the inner side of the window hole 12, and the PCB board 41 is provided with a pair of quick-connecting electric contact pins 4 (also called a male plug or a Pogo pin). The outer end of the needle 4 is directed outside the aperture 12. The electric contact pin 4 is used for the USB electrical connection board on the inner end side of the USB charging connector 7 disposed in the cap when the cap of the side is pushed inward (to the direction of the capsule 1) and reaches the extreme position. The quick-connecting female connector on the 71 is connected to the electrical contact pin 4 in a quick-connecting manner, and the inner end of the electrical contact pin 4 is electrically connected to the charging circuit through the PCB board 41 and the stringing board 91.

2, the left cap 5

As shown in FIG. 5, the present invention sets the USB charging connector 7 in the left cap 5, and the outer end surface of the left cap 5 is provided with a socket 54 for the USB charging connector 7, and the USB charging connector 7 is fixed to the left cap. On the inner bottom surface of the 5, the USB charging connector 7 can be connected to an external power supply via a USB cable.

The left cap 5 is composed of a cap 51 and a slip ring 52. The slip ring 52 is fixedly mounted in the inner port of the cap 51 by a gluing or snapping structure, and is provided on the radially inner side wall of the slip ring 52. a short rail block 53 protruding in the axial direction of the slip ring 52. The rail block 53 is clamped in the sliding slot 13 provided on the capsule body 1 and the cap body 51 carrying the cap is reciprocated along the sliding slot 13 .

The rail blocks 53 are two and are symmetrically arranged in an axis of the slip ring 52.

The structure can make the left cap 5 be sleeved on the capsule 1 and smoothly slide.

In order to make the structure of the capsule 1 tight and firm when the left cap 5 is pushed inwardly and to the extreme limit position, a left cap can be disposed on the bottom end surface of the left cap 5 and the left end face of the capsule 1. 5 a fastening structure tightly fastened to the capsule 1; the bottom end surface in the right capsule 6 and the right end surface of the capsule 1 are provided with the said right capsule 6 being tightly fastened to the capsule 1 Fastening structure.

The fastening structure is a magnetic component disposed between the capsule cap and the capsule 1 or a quick-release male and female fastener disposed between the capsule and the capsule 1.

The present invention is preferably a magnetic pickup assembly, specifically, a small magnetic block 8 is disposed on both sides of the inner bottom surface USB charging connector 7 of the left capsule 5, and correspondingly, the outer wall of the window hole 12 at the left end of the capsule 1 is also disposed. Small magnetic block 8.

3, right capsule 6

As shown in FIGS. 6 and 7, the right capsule 6 is different from the left capsule 5 only in that the USB charging connector 7 is not disposed thereon, and the others are the same, that is, the cap 51 and the slip ring are also disposed on the right capsule 6. 52. The slip ring 52 is provided with a rail block 53 and a fastening structure.

Like the left cap 5, a magnetic assembly is preferably provided, i.e., the small magnet 8 is disposed on the inner bottom surface of the right cap 6 and the right end face of the capsule 1.

The invention provides a design structure, which can be applied to consumer electronic products, such as HTS, active speaker SOUNDBAR ordinary power amplifier, etc., and adopts a two-way pumping structure, which can effectively improve the space utilization ratio of the capsule 1, that is, left and right. The capsule 6 is pulled outwardly for a short distance to open the storage compartment 15 of the capsule 1 for storing the earphones, achieving a minimum stretchable length with a maximum viewing area.

Claims

A capsule type charging storage box for a TWS earphone comprises a charging circuit disposed in the capsule body (1) and a storage chamber (15) for storing the TWS earphone, characterized in that: the left and right ends of the capsule body (1) are respectively provided There are a left cap (5) and a right cap (6) which are sleeved on the capsule (1) and movable along the capsule (1), and the left cap (5) and the right cap (6) are opposite to each other. The capsule (1) is completely enclosed in a closed space enclosed by the left capsule (5) and the right capsule (6), and the left capsule (5) and the right capsule (6) are moved back to each other to make the capsule (1) The storage room (15) inside is exposed.
A capsule type charging storage case for a TWS earphone according to claim 1, wherein a USB charging connector (7) is provided on an outer end surface of the left cap (5) or the right cap (6), on the left The bottom end surface in the capsule cap (5) and the left end surface of the capsule body (1) are provided with a fastening structure for tightly engaging the left capsule cap (5) on the capsule body (1); in the right capsule (6) The bottom end surface of the inner end surface of the capsule body (1) is provided with the fastening structure for tightly engaging the right capsule cap (6) on the capsule body (1).
The capsule type charging storage case for a TWS earphone according to claim 2, wherein the fastening structure is a magnetic component disposed between the capsule cap and the capsule (1) or is provided in the capsule and the capsule Quick and easy male and female fasteners between the bodies (1).
The capsule charging storage case for a TWS earphone according to claim 1, wherein the left cap (5) and the right cap (6) are both composed of a cap body (51) and a slip ring (52). The slip ring (52) is fastened in the inner port of the cap body (51), and on the radially inner side wall of the slip ring (52), a rail block (53) protruding toward the axis of the slip ring (52) is provided; a groove (13) running along its axis is provided on the capsule body (1), and the rail block (53) is embedded in the sliding groove (13) and can carry the cap body (51) along the The chute (13) reciprocates.
The capsule charging storage case for a TWS earphone according to claim 4, wherein the rail blocks (53) are two and are symmetrically arranged with an axis of the slip ring (52); correspondingly, the chute ( 13) is two, and is symmetrically arranged with the capsule (1) axis.
The capsule type charging storage case for a TWS earphone according to claim 1, characterized in that the left capsule cap (5) and the right capsule cap (6) have a circular, elliptical, rectangular or regular polygonal sectional shape.
A capsule type charging storage case for a TWS earphone according to claim 1, wherein said capsule body (1) is composed of an upper half shell (2) and a lower half shell (3), and the upper half shell (2) is The lower half shell (3) is tightly fastened together by providing a quick disassembly structure therebetween.
The capsule charging storage case of the TWS earphone according to claim 2, wherein the USB charging connector (7) is fixed in the corresponding capsule, and the external interface is disposed on the outer end surface of the corresponding capsule. The jack (54) is exposed, and the inner interface is a female interface for fast electrical connection; correspondingly, on the side of the capsule (1) corresponding to the capsule, a quick electrical connection can be inserted into the female interface. A male insert is mounted on a card attached to the capsule (1), and the inner end of the male insert is electrically connected to the charging circuit.