KR20170074099A - Braceket type assistance battery - Google Patents

Abstract

A bracelet auxiliary battery is provided. A wristband type auxiliary battery according to an embodiment of the present invention includes a band unit in which a flexible battery for supplying power to an electronic device to be charged is installed; And a pair of fastening portions provided to correspond to the both end portions of the band portion to maintain or release the wearing state of the band portion, wherein the pair of fastening portions include first and second fastening portions having protrusions protruding from the body at a predetermined height, And a second fastening member provided annularly so as to surround the periphery of the projection when fastened.

Description

A bracelet type auxiliary battery {Braceket type assistance battery}

The present invention relates to a bracelet type auxiliary battery, and more particularly, to a bracelet type auxiliary battery which can be easily used as an accessory such as a bracelet by being easily worn on a part of the body at a normal time and can be used as a bracelet for charging a main battery of a portable electronic device or a wearable device Type auxiliary battery.

2. Description of the Related Art Generally, a smartphone terminal is a multimedia integrated device, which is indispensable to modern people. Unlike the past mobile terminal, the smart phone terminal is intended to perform various functions such as internet, application, TV, navigation and SNS.

Such a portable terminal is provided with a built-in battery or a replaceable battery, and receives power from the battery.

However, in recent years, the amount of electric power required for a portable terminal has been increased due to various functions. Accordingly, various techniques for increasing the use time of the battery have been developed.

As a part of this, an auxiliary battery is sold as a method for connecting the portable terminal and charging the main battery easily. However, when the battery of the portable terminal is discharged while the user carries the auxiliary battery separately, the auxiliary battery is charged with the basic battery of the terminal by using a separate cable such as a USB cable.

That is, since a general auxiliary battery requires the user to carry the auxiliary battery separately from the terminal, it is difficult to carry it.

KR 10-2012-0136136 A

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a flexible battery which can be used as a secondary battery when a flexible battery is built in a band part, so that a user can easily charge an electronic device such as a portable terminal The present invention provides a bracelet type secondary battery having a plurality of wristbands.

Another object of the present invention is to provide a bracelet type auxiliary battery which is provided with a separate function unit such as a display unit for displaying various information and can use additional functions of the function unit at normal times when charging is unnecessary.

According to an aspect of the present invention, there is provided a battery pack comprising: a band unit having a flexible battery for supplying power to an electronic device to be charged; And a pair of fastening portions provided to correspond to the both end portions of the band portion to maintain or release the wearing state of the band portion, wherein the pair of fastening portions include first and second fastening portions having protrusions protruding from the body at a predetermined height, And a second fastening member provided in an annular shape so as to surround the periphery of the projecting portion when fastened.

Further, the protrusion may be formed in a dome shape.

In addition, the body may include a circuit unit electrically connected to the flexible battery, at least one charging port for electrically connecting with an external device may be formed at one side of the body, The flexible battery can be charged by charging the battery of the device or using a power source supplied from the outside.

Further, the body may include a seating surface disposed on the outer side of the protrusion to surround the protrusion, and when the first and second fastening members are fastened, one side of the second fastening member contacts the seating surface .

In addition, a magnet member may be provided on at least one side of the seating surface and the second fastening member, and a magnet member corresponding to the seating surface and the second fastening member may be provided, respectively.

In addition, the seating surface may include a receiving recess formed to be recessed to a predetermined depth so that a part or the entire thickness of the second fastening member can be received.

The protrusion may include a display unit for displaying at least one of image, number, and character.

The flexible battery includes: an electrode assembly; And an outer casing that encapsulates the electrode assembly together with the electrolyte. The electrode assembly and the outer casing may be formed so that patterns for contraction and relaxation with respect to the longitudinal direction at the time of bending are aligned with each other.

The pattern may be formed such that a plurality of hill portions and trough portions are alternately formed along the longitudinal direction, and the hill portions and the valleys may have arcuate cross-sections, polygonal cross-sections, and mutually-combined cross-sections, And may be formed entirely or partially in the casing.

According to the present invention, it is possible to use an accessory such as a bracelet or a watch at normal times, and to easily charge an electronic device such as a portable terminal through a flexible battery built in the band unit in an emergency.

FIG. 1 illustrates a bracelet type auxiliary battery according to an embodiment of the present invention. FIG.
FIG. 2 is a view showing a state in which the pair of fastening portions are separated in FIG. 1,
3 is a view showing a case where a seating surface is formed in a horizontal plane in a bracelet type auxiliary battery according to the present invention,
4 is a view showing a case where a seating surface is formed as a receiving groove in a bracelet type auxiliary battery according to the present invention,
FIG. 5 is a schematic view showing a flexible battery applied to a bracelet type auxiliary battery according to the present invention,
6 is a view illustrating various patterns applied to an electrode assembly and a casing of a flexible battery applicable to a bracelet type auxiliary battery according to the present invention, and shows various intervals between neighboring valleys or apexes, and FIG.
7 is an enlarged view showing a detailed configuration of a flexible battery applied to a bracelet type auxiliary battery according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same reference numerals are assigned to the same or similar components throughout the specification.

The bracelet-type auxiliary battery 100 according to the present invention includes a band portion 110 and a pair of fastening portions 120a and 120b as shown in FIGS.

The band portion 110 is provided to have a predetermined width and length so as to cover the body of the user, for example, the wrist. The band portion 110 has a pair of fastening portions 120a and 120b for holding or releasing the user's body, Respectively.

Here, the band portion 110 may be made of a soft material such as silicon, leather, rubber, or the like.

The wristband type auxiliary battery 100 according to the present invention includes a flexible battery 130 for supplying power to the charging target side so as to be used as an auxiliary battery for charging the main battery to be charged, .

Accordingly, the user can charge the main battery to be charged by using the power supplied from the flexible battery 130 built in the band unit 110, so that the user can easily charge the main battery The battery can be charged.

To this end, at least one charging port 123 for electrical connection with the charging object is formed at one side of the pair of coupling portions 120a and 120b.

For example, the charging port 123 may be formed on one side of the body 121 constituting the first fastening member 120a of the pair of fastening portions 120a and 120b.

The charging port 123 is electrically connected to the circuit unit 124 included in the body 121 and the circuit unit 124 is electrically connected to the flexible battery 130 built in the band unit 110. [ do.

Accordingly, when the charging port 123 is connected to the object to be charged via a known charging cable, power is supplied from the flexible battery 130 to the object to be charged, so that the main battery can be easily charged .

As a result, the bracelet-type auxiliary battery 130 according to the present invention can be used as an auxiliary battery that can charge the main battery to be charged when the flexible battery 130 built in the band unit 110 is in a state of emergency.

Here, the charging port 123 may be a known USB port type, and the circuit unit 124 may include a charging circuit for charging and discharging, and a protection circuit for preventing overcharging.

In addition, when the charging port 123 is connected to an external charger through a charging cable, the charging port 123 may serve as a passage for charging the flexible battery 130 through a power source provided from the charging device.

Although the charging port 123 is shown as one unit in the figure, the present invention is not limited to this. The charging port for charging the charging object and the power source provided from the external charging equipment can be connected to each other by using the power provided from the flexible battery 130 And a charging port for charging the flexible battery may be provided.

The pair of fastening portions 120a and 120b are for fastening the bracelet auxiliary battery 130 according to the present invention to the wearer's body, Member 120a and a second fastening member 120b.

That is, a first fastening member 120a having a protrusion 122 protruding from the body 121 at a predetermined height is provided at one end of the band portion 110, and a center portion is formed at the other end of the band portion 110 And an annular second fastening member 120b is provided.

Accordingly, the user can keep the second fastening member 120b worn on the user's body by engaging the second fastening member 120b with the protruding portion 122 of the first fastening member 120a, It is possible to release the wearing state by separating the upper case 120b.

More specifically, the first fastening member 120a includes a body 121 having a predetermined size, one side of which is connected to one end of the band unit 110, and the protrusion 122 is connected to the body 121 And is formed so as to have a predetermined height on the upper surface.

The body 121 may include a circuit unit 124 electrically connected to the flexible battery 130, as described above.

At this time, the projecting portion 122 and the second fastening member 120b are provided so as to have a shape corresponding to each other. For example, the second fastening member 120b may be formed in an annular shape having a central opening, and the protruding portion 122 may be formed in a ring shape when fastening the first fastening member 120a and the second fastening member 120b. And an inner circumferential surface of the member 120b includes a circular circumferential surface so as to surround the circumference of the protruding portion 122. [

Accordingly, the user moves the second fastening member 120b downward from the position of the protruding portion 122 to fit the second fastening member 120b to the protruding portion 122, So that the second fastening member 120b is restrained from moving toward the longitudinal direction of the band portion 110. As a result, the second fastening member 120b is retained in the protruded portion 122 (see FIG. 1).

On the contrary, when the fastening state of the first fastening member 120a and the second fastening member 120b is to be released, the second fastening member 120b fitted to the protruding portion 122 is moved upward, So that the fastening state is released (see Fig. 2).

At this time, the protrusion 122 may be formed to have a curved surface so that the second fastening member 120b can be easily detached or fitted when the second fastening member 120b is engaged or disengaged. For example, the protrusion 122 may be provided in a dome shape.

Accordingly, the second fastening member 120b slides along the surface of the protrusion 122 when the first fastening member 120b is engaged with the second fastening member 120b.

The body 121 is provided to have a relatively larger cross-sectional area than the maximum cross-sectional area of the protrusion 122, so that the second body 120, which is inserted into the protrusion 122 when the protrusion 122 and the second fastening member 120b are engaged, The one side of the fastening member 120b abuts against one surface of the body 121 so that the downward movement of the fastening member 120b is restricted.

That is, the upper surface of the body 121 has a seating surface 121a formed at a central portion thereof with a predetermined height and disposed on the outer side of the protrusion 122 so as to surround the protrusion 122 do.

The second fastening member 120b fitted to the protruding portion 122 when the first fastening member 120a and the second fastening member 120b are engaged is moved to the lowermost end of the protruding portion 122, And comes into contact with the seating surface 121a.

At this time, a magnet member 125 is provided on at least one side of the seating surface 121a and the second fastening member 120b so that the second fastening member 120b can be easily separated from the first fastening member 120a by the magnetic force (See Figs. 3 and 4).

Here, the magnet member 125 may be provided only on the side of the second fastening member 120b when the body 121 is made of a metal material, and when the second fastening member 120b is made of a metal material It may be provided only on the seating surface 121a, but it is preferably provided in a pair corresponding to the seating surface 121a and the second coupling member 120b so as to increase the fixing force by the magnetic force.

In addition, the magnet member 125 may be provided on the seating surface 121a as a whole or partially, or may be provided on one side exposed to the outside, or may be embedded on the seating surface 121a to prevent exposure to the outside. As shown in FIG.

The seating surface 121a receives a part or the entire thickness of the second fastening member 120b when the first fastening member 120a and the second fastening member 120b are engaged, The receiving groove 121b may be formed to have a predetermined depth so as to prevent the receiving portion 120b from being separated from the protruding portion 122 regardless of the user's intention (see FIG. 4).

The bracelet-type auxiliary battery 100 according to the present invention may include a functional unit having a predetermined function.

For example, the functional unit may include a display unit for displaying various information transmitted from the circuit unit 124 incorporated in the body 121. [ Here, the information may be information including images, numbers, and characters, and the circuit unit 124 may include various circuits for driving and controlling the display unit. The protrusion 122 may serve as a display unit can do.

Accordingly, the user can check various information displayed on the protruding portion 122 while wearing the wristband-type auxiliary battery 100 on the wrist.

That is, the bracelet-type auxiliary battery 100 according to the present invention can be used not only as a fashion item such as a bracelet, but also as a wearable device by implementing an additional function through a function unit performing a predetermined function.

Here, the protrusion 122 may include a display unit, a communication unit capable of transmitting and receiving data through short-range communication with other portable electronic devices and external electronic devices, It can also be shown through wealth. In addition, the circuit unit for driving the display unit and the communication unit may be separately provided, but may be integrated with the circuit unit 124 used for charging / discharging the flexible battery 130 described above.

Meanwhile, the display unit and the communication unit may be driven by separate batteries, but a part of the power of the flexible battery 130 installed in the band unit 110 may be used as a power source for driving the display unit and the communication unit .

The flexible battery 130 is installed in the band unit 110 and supplies power to the external electronic device to be charged. The flexible battery 130 includes an electrode assembly 131 and exterior materials 137 and 138 as shown in FIG. 7, The assembly 131 is sealed inside the casing materials 137 and 138 together with the electrolytic solution.

The electrode assembly 131 and the exterior materials 137 and 138 are provided with patterns 136 and 139 for contraction and relaxation in the longitudinal direction respectively and the first pattern 139 formed on the exterior materials 137 and 138, And the second pattern 136 formed on the first insulating layer 131 have the same directionality (refer to FIG. 5).

Such patterns 136 and 139 are formed in the band portion 110 of the flexible battery 130 so that even if banding of the band portion 110 occurs during use, the pattern itself can be contracted Thereby preventing or minimizing relaxation.

Since the amount of deformation of the substrate itself constituting the electrode assembly 131 and the sheathing members 137 and 138 is prevented or minimized, the amount of deformation of the substrate itself, which may occur in the bent portion, is minimized, It is possible to prevent breakage or deterioration of the performance of the heat dissipating members 137 and 138.

At this time, the first pattern 139 and the second pattern 136 are disposed so that the first pattern 139 and the second pattern 136 coincide with each other, as well as the same directionality. This is because the first pattern 139 and the second pattern 136 can always have the same behavior.

As described above, the flexible battery 130 according to the present invention is formed so that the patterns 136 and 139 for contraction and relaxation in the longitudinal direction generated when the electrode assembly 131 and the exterior materials 137 and 138 are bent, Since the electrode assembly 131 and the casing members 137 and 138 can always maintain a uniform gap or contact state with respect to the entire length of the electrode assembly 131, The performance as a battery can be prevented from deteriorating.

The first pattern 139 and the second pattern 136 are formed in a direction parallel to the width direction of the casing member 137 and the electrode assembly 131, And the electrode assemblies 131 are arranged alternately along the longitudinal direction. The first pattern 139 and the second pattern 136 may be formed such that the first and second patterns 139 and 137 are formed at the same positions of the first and second patterns 139 and 137, 136 are brought into alignment with each other.

The protrusions and valleys of the first pattern 139 and the second pattern 136 are formed in a direction parallel to a straight line parallel to the width direction of the casing member 137 and 138 and the electrode assembly 131 , And the peak and valley are repeatedly arranged along the longitudinal direction (see Fig. 6).

At this time, the patterns 136 and 139 may be continuously formed in a direction parallel to the width direction of the electrode assembly 131 and the casing materials 137 and 138, and may be formed discontinuously (see FIG. 6) 131 and the sheathing members 137, 138 and may be partially formed with respect to a part of the length (see FIG. 12).

The crests and valleys may be formed to have arcuate cross-sections including semicircles, polygonal cross-sections including triangular or rectangular cross-sections, and cross-sections of various shapes in which arc-shaped cross-sections and polygonal cross-sections are mutually combined. Pitch and width, but they may be provided to have different pitches and widths (see Figs. 13 to 16).

Accordingly, the fatigue applied to the substrate itself through the patterns 136 and 139 can be reduced even if the sheathing members 137 and 138 and the electrode assembly 131 are embedded in a bent state.

As shown in FIG. 6, the first pattern 139 and the second pattern 136 may be spaced apart from each other by a predetermined interval or spaced apart from each other, And may be provided in the form of a combination of equal intervals and different intervals. In addition, the first pattern 139 formed on the exterior materials 137 and 138 may be formed on the entire surface of the exterior materials 137 and 138, but may be partially formed.

The electrode assembly 131 is encapsulated together with an electrolytic solution inside the casing members 137 and 138 and includes an anode 132, a cathode 134 and a separator 133 as shown in FIG.

The positive electrode 132 includes a positive electrode collector 132a and a positive electrode active material 132b and the negative electrode 134 includes a negative electrode collector 134a and a negative electrode active material 134b and the positive electrode collector 132a And the anode current collector 134a may be realized in the form of a sheet having a predetermined area.

That is, the positive electrode 132 and the negative electrode 134 can be pressed, deposited, or coated with active materials 132b and 134b on one or both surfaces of the current collectors 132a and 134a. At this time, the active materials 132b and 134b may be provided with respect to the entire area of the current collectors 132a and 134a or partially with respect to a certain area.

The positive electrode collector 132a and the negative electrode collector 134a may be formed with a negative electrode terminal 135a and a positive electrode terminal 135b for electrical connection with an external device from each body. The anode terminal 135b and the anode terminal 135a may be formed to extend from the cathode current collector 132a and the anode current collector 134a and protrude from one side of the case members 137 and 138, 137, 138, respectively.

At this time, the cathode active material 132b and the anode active material 134b may contain a PTFE (Polytetrafluoroethylene) component. This is to prevent peeling or cracking of the cathode active material 132b and the anode active material 134b from the current collectors 132a and 134a at the time of bending.

The separation membrane 133 disposed between the anode 132 and the cathode 134 may include a nanofiber web layer 133b on one side or both sides of the nonwoven fabric layer 133a.

Here, the nanofiber web layer 133b may be a nanofiber containing at least one selected from the group consisting of polyacrylonitrile nanofiber and polyvinylidene fluoride nanofiber.

Preferably, the nanofiber web layer 133b may consist solely of polyacrylonitrile nanofibers to ensure radioactive and uniform pore formation.

The outer casings 137 and 138 are formed of a plate-shaped member having a predetermined area and are adapted to protect the electrode assembly 131 from external force by accommodating the electrode assembly 131 and the electrolyte therein.

The outer sheath 137 and 138 are formed of a pair of first outer sheathing material 137 and a second outer sheathing material 138. The electrolyte solution and the electrode assembly 131, And prevents leakage to the outside.

The outer sheath 137 and the outer sheath 138 may be formed of a single member such that the edges of the outer sheath 137 and the outer sheath 138 may be sealed by an adhesive, The remaining portion that is folded in half along the width or length direction and then abutted may be sealed through the adhesive.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: bracelet type auxiliary battery 110: band part
120a: first fastening member 120b: second fastening member
121: body 121a: seat surface
121b: receiving groove 122:
123: charging port 124:
125: Magnet member 130: Flexible battery

Claims (10)

A band unit in which a flexible battery for supplying power to the electronic device to be charged is incorporated; And
And a pair of fastening portions provided on both ends of the band portion so as to correspond to each other to maintain or release the wearing state of the band portion,
Wherein the pair of fastening portions includes a first fastening member having a protrusion formed to protrude from the body at a predetermined height and a second fastening member provided in an annular shape to surround the periphery of the protrusion when fastened. The method according to claim 1,
Wherein the protruding portion is formed in a dome shape. The method according to claim 1,
Wherein the body includes a circuit part electrically connected to the flexible battery,
At least one charging port for electrically connecting with an external device is formed on one side of the body so that the battery of the external device can be charged using the power of the flexible battery or the flexible battery can be charged The bracelet-type auxiliary battery to be charged. The method according to claim 1,
Wherein the body includes a seating surface arranged to surround the protrusion on the outer side of the protrusion, and when the first and second fastening members are fastened, one side of the second fastening member contacts with the seating surface, Secondary battery. 5. The method of claim 4,
Wherein at least one of the seating surface and the second coupling member is provided with a magnet member and the magnet member corresponding to the seating surface and the second coupling member are respectively provided. 5. The method of claim 4,
Wherein the seating surface includes a receiving recess formed to be recessed to a certain depth so that a part or the entire thickness of the second fastening member can be received. The method according to claim 1,
Wherein the protruding portion includes a display portion for displaying information of at least one of video, numbers and characters. The method according to claim 1,
The flexible battery includes:
An electrode assembly; And
And an outer casing that encapsulates the electrode assembly together with the electrolyte,
Wherein the electrode assembly and the casing are formed such that patterns for shrinkage and relaxation in the longitudinal direction coincide with each other when bending. 9. The method of claim 8,
The pattern is formed by alternately forming a plurality of peak portions and valley portions along the longitudinal direction,
Wherein the mountain portion and the valley portion are formed to have an arc-shaped cross-section, a polygonal cross-section, and a cross section in which they are mutually combined. 9. The method of claim 8,
Wherein the pattern is formed entirely or partially in the electrode assembly and the casing.

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