KR102475381B1 - Braceket type assistance battery - Google Patents

Abstract

A bracelet type auxiliary battery is provided. A bracelet-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 built-in; and a pair of fastening parts provided at both ends of the band part to correspond to each other to maintain or release the wearing state of the band part, wherein the pair of fastening parts have a charging port for electrical connection with an external device. When the first fastening member includes a body provided, a protruding portion protruding from the upper surface of the body at a predetermined height, and a seating surface formed on the upper surface of the body to surround the protruding portion, and the first fastening member A second fastening member formed in a ring shape surrounding the circumference of the protrusion and contacting the seating surface, wherein the second fastening member moves from the top of the protrusion to the seating surface and is engaged with the protrusion, , The protrusion may be formed in a dome shape so that the second fastening member can slide along the surface of the protrusion when coupling and separating the second fastening member.

Description

Bracelet type assistance battery

The present invention relates to a bracelet type auxiliary battery.

In general, a smartphone terminal is a multimedia integrated device that is indispensable to modern people.

Such portable terminals have a built-in battery or a replaceable battery, and receive the required power from the battery.

However, recently, as portable terminals perform various functions, the amount of power required is increasing. Accordingly, various technologies for increasing the use time of the battery are being developed.

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

That is, since the user has to carry the auxiliary battery separately from the terminal, it is cumbersome to carry the auxiliary battery.

KR 10-2012-0136136 A

The present invention has been devised in consideration of the above points, and a flexible battery is built into the band so that it can be used as an auxiliary battery in case of emergency, so that the user can easily charge electronic devices such as portable terminals without carrying a separate auxiliary battery. Its purpose is to provide a bracelet-type auxiliary battery with

In addition, another object of the present invention is to provide a bracelet-type auxiliary battery that is provided with a separate functional unit such as a display unit for displaying various information, so that additional functions of the functional unit can be used during normal times when charging is unnecessary.

In order to solve the above problems, the present invention is a flexible battery for supplying power to the side of the charging target electronic device is built-in band unit; and a pair of fastening parts provided at both ends of the band part to correspond to each other to maintain or release the wearing state of the band part, wherein the pair of fastening parts have a charging port for electrical connection with an external device. When the first fastening member includes a body provided, a protruding portion protruding from the upper surface of the body at a predetermined height, and a seating surface formed on the upper surface of the body to surround the protruding portion, and the first fastening member A second fastening member formed in a ring shape surrounding the circumference of the protrusion and contacting the seating surface, wherein the second fastening member moves from the top of the protrusion to the seating surface and is engaged with the protrusion, The protrusion is formed in a dome shape so that the second fastening member can slide along the surface of the protrusion when the second fastening member is coupled or separated.

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In addition, the body may have a built-in circuit unit electrically connected to the flexible battery, and the flexible battery may be recharged by charging a battery of the external device or by using power supplied from the outside.

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

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

In addition, the protruding part may include a display unit displaying at least any one of image, number, and text information.

In addition, the flexible battery, the electrode assembly; and an exterior material encapsulating the electrode assembly together with the electrolyte solution. a first pattern formed on the exterior material such that a plurality of peaks and valleys are alternately disposed along the longitudinal direction of the exterior material; and a second pattern formed on the electrode assembly to match the first pattern along the longitudinal direction of the electrode assembly.

In addition, the ridges and valleys may have arc-shaped cross-sections, polygonal cross-sections, and cross-sections in which these cross-sections are combined, and the pattern may be entirely or partially formed on the electrode assembly and the exterior material.

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

1 is a diagram showing a bracelet-type auxiliary battery according to an embodiment of the present invention;
2 is a view showing a state in which a pair of fastening parts are separated in FIG. 1;
3 is a view showing a case where a seating surface is formed as a horizontal surface in a bracelet-type auxiliary battery according to the present invention;
4 is a view showing a case in which a seating surface is formed as a receiving groove in a bracelet-type auxiliary battery according to the present invention;
5 is a schematic diagram showing a flexible battery applied to a bracelet-type auxiliary battery according to the present invention;
6 is an exemplary view showing various patterns applied to an electrode assembly and an exterior material in a flexible battery applied to a bracelet-type auxiliary battery according to the present invention, a view showing various intervals between adjacent valleys or hills, and,
7 is an enlarged view showing the detailed configuration of a flexible battery applied to a bracelet-type auxiliary battery according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. This invention may be embodied in many different forms and is not limited to the embodiments set forth herein. In order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and the same reference numerals are added to the same or similar components throughout the specification.

As shown in FIGS. 1 and 2 , the bracelet-type auxiliary battery 100 according to the present invention includes a band part 110 and a pair of fastening parts 120a and 120b.

The band part 110 is provided to have a predetermined width and length so as to wrap the user's body, for example, the wrist, and at both ends, a pair of fastening parts 120a for maintaining or releasing the worn state on the user's body, 120b) are respectively provided.

Here, the band part 110 may be made of a soft material such as silicone, leather, or rubber.

At this time, the bracelet-type auxiliary battery 100 according to the present invention is a flexible battery 130 for providing power to the charging target side so that it can be used as an auxiliary battery for charging the main battery of the charging target in case of emergency. is built into

Accordingly, the user can charge the main battery of the charging target using the power provided from the flexible battery 130 built in the band unit 110, so that the main battery of the charging target can be easily charged without carrying a separate auxiliary battery. The battery can be charged.

To this end, at least one charging port 123 for electrical connection with the charging target is formed on one side of the pair of fastening parts 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 parts 120a and 120b.

The charging port 123 is electrically connected to the circuit part 124 embedded in the body 121, and the circuit part 124 is electrically connected to the flexible battery 130 embedded in the band part 110 and each other do.

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

Through this, in the wristband-type auxiliary battery 100 according to the present invention, the flexible battery 130 built in the band part 110 can be used as an auxiliary battery capable of charging the main battery to be charged in case of emergency.

Here, the charging port 123 may be provided as 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 via a charging cable, it may serve as a passage for charging the flexible battery 130 through power provided from the charger.

Although the drawing shows that the charging port 123 is provided as one, it is not limited thereto, and the charging port for charging the charging target using the power provided from the flexible battery 130 and the power provided from the external charger It should be noted that each charging port for charging the flexible battery may be provided.

The pair of fastening parts 120a and 120b are for wearing the auxiliary battery 100 for a bracelet according to the present invention to the user's body or releasing it from the wearing state, and the first fastening corresponding to each other to enable coupling and separation. It includes a member 120a and a second fastening member 120b.

That is, a first fastening member 120a having a protruding portion 122 protruding from the body 121 at a predetermined height is provided at one end of the band portion 110, and the central portion is empty at the other end of the band portion 110. A ring-shaped second fastening member 120b is provided.

Accordingly, the user maintains a state worn on the user's body by coupling the second fastening member 120b to the protrusion 122 of the first fastening member 120a, or removes the second fastening member from the protrusion 122. By separating (120b), the wearing state can be released.

Specifically, the first fastening member 120a includes a body 121 having a predetermined size connected to one end of the band part 110, and the protrusion 122 is the body 121. It protrudes from the upper surface to have a predetermined height.

Here, the circuit unit 124 electrically connected to the flexible battery 130 may be embedded in the body 121 as described above.

At this time, the protrusion 122 and the second fastening member 120b are provided to have shapes corresponding to each other. For example, the second fastening member 120b is provided in an annular shape with an open central portion, and the protruding portion 122 engages the annular second fastening when the first fastening member 120a and the second fastening member 120b are fastened together. The inner circumferential surface of the member 120b includes a circular circumferential surface to surround the circumference of the protruding portion 122 .

Accordingly, the user inserts the second fastening member 120b into the protruding part 122 by moving the second fastening member 120b downward from the upper position of the protruding part 122 to the protruding part 122. By this, the movement of the second fastening member 120b in the longitudinal direction of the band portion 110 is restricted. Due to this, the state in which the second fastening member 120b is fastened to the protrusion 122 is maintained (see FIG. 1 ).

Conversely, 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 inserted into the protruding part 122 is moved upward, and the protruding part 122 ), the fastened state is released by separating from the inserted state (see FIG. 2).

At this time, the protruding portion 122 may have a curved surface so that the second fastening member 120b can be easily separated or inserted when the second fastening member 120b is coupled or separated. For example, the protrusion 122 may be provided in a dome shape.

Accordingly, when engaging and separating from the second fastening member 120b, the second fastening member 120b slides along the surface of the protruding portion 122, thereby facilitating coupling and separation.

Here, the body 121 is provided to have a cross-sectional area relatively larger than the maximum cross-sectional area of the protrusion 122, so that when the protrusion 122 and the second fastening member 120b are coupled, the second inserted into the protrusion 122. One side of the fastening member 120b is in contact with one surface of the body 121 so that downward movement is restricted.

That is, the upper surface of the body 121 is provided with a seating surface 121a disposed so as to surround the protrusion 122 on the outside of the protrusion 122 is formed at a predetermined height in the central portion. do.

Accordingly, when the first fastening member 120a and the second fastening member 120b are coupled, the second fastening member 120b inserted into the protruding part 122 moves to the lowest end of the protruding part 122 and then one side is It 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 is easily separated from the first fastening member 120a by 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, or when the second fastening member 120b is made of a metal material. Although it may be provided only on the side of the seating surface 121a, it is preferable to provide a pair corresponding to each other on the seating surface 121a and the second fastening member 120b so as to increase the fixing force by magnetic force.

In addition, the magnet member 125 may be provided entirely or partially on the seating surface 121a, may be provided in a form in which one surface is exposed to the outside, or may be provided in a form buried to prevent exposure to the outside. It may be provided as

Meanwhile, the seating surface 121a accommodates 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 coupled, and the second fastening member 120b An accommodating groove 121b recessed to a certain depth may be formed to prevent the 120b from being separated from the protrusion 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 displaying various information transmitted from the circuit unit 124 embedded 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, and the protrusion part 122 serves as the display unit. can do.

Through this, the user can check various types of information displayed on the protruding part 122 while wearing the bracelet-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 additional functions through functional units that perform predetermined functions.

Here, the protrusion 122 may include a communication unit capable of transmitting and receiving data through short-range communication with other portable electronic devices and external electronic devices along with the display unit, and display the contents transmitted and received through short-range communication. It should be noted that it can also be expressed through wealth. In addition, the circuit unit for driving the display unit and the communication unit may be provided separately, but may be provided in an integrated form with the circuit unit 124 used during charging and discharging of the flexible battery 130 described above.

On the other hand, although the display unit and the communication unit may be driven by a separate battery, some of the power of the flexible battery 130 built in the band unit 110 may be used as a power source for driving the display unit and the communication unit. reveal

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

At this time, 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 electrode assembly The second patterns 136 formed on 131 are provided to have the same direction as each other (see FIG. 5).

Such patterns 136 and 139 offset the amount of change in length caused by curvature even if the flexible battery 130 is embedded in the band unit 110 and bending of the band unit 110 occurs during use, so that the substrate itself shrinks or It prevents or minimizes relaxation.

Through this, since the amount of deformation of the substrate itself constituting the electrode assembly 131 and the exterior materials 137 and 138 is prevented or minimized, even if bending occurs, the amount of deformation of the substrate itself that may occur in the bent portion is minimized, thereby minimizing the electrode assembly 131 and the exterior material. (137, 138) can be prevented from being damaged or degraded.

At this time, the first pattern 139 and the second pattern 136 have the same orientation and are arranged so that the first pattern 139 and the second pattern 136 coincide with each other. This is to ensure that the first pattern 139 and the second pattern 136 always have the same behavior.

As such, in the flexible battery 130 applied to the present invention, the electrode assembly 131 and the exterior materials 137 and 138 are formed so that the patterns 136 and 139 for contraction and relaxation in the longitudinal direction coincide with each other, resulting in a length Even if bending occurs in the direction, the electrode assembly 131 and the exterior materials 137 and 138 can always maintain a uniform distance or contact state with respect to the entire length, so that the electrolyte solution sealed with the electrode assembly 131 extends over the entire length. It is possible to prevent performance as a battery from deteriorating by uniformly distributing the battery.

To this end, the peaks and valleys of the first pattern 139 and the second pattern 136 are formed in a direction parallel to the width direction of the exterior materials 137 and 138 and the electrode assembly 131, respectively, and the exterior materials 137 and 138 ) and along the longitudinal direction of the electrode assembly 131, peaks and valleys are alternately disposed. In addition, the peaks and valleys constituting the first pattern 139 and the second pattern 136 are formed at the same position as the peaks and valleys, so that the first pattern 139 and the second pattern ( 136) to match each other.

Specifically, the peaks 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 exterior materials 137 and 138 and the electrode assembly 131, , the peaks and valleys 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 exterior materials 137 and 138 or may be formed discontinuously (see FIG. 6), and the electrode assembly ( 131) and the exterior materials 137 and 138 may be formed over the entire length or partially formed over a partial length (see FIG. 12).

Here, the peaks and valleys may have a cross-sectional shape of any one of an arc cross section including a semicircle, a polygon cross section including a triangle or a square, and various shapes in which the arc cross section and the polygon cross section are mutually combined. And valleys may be provided to have the same pitch and width, but may be provided to have different pitches and widths (see FIGS. 13 to 16).

Through this, even if the exterior materials 137 and 138 and the electrode assembly 131 are built in a bent state, fatigue applied to the substrate itself through the patterns 136 and 139 can be reduced.

Meanwhile, as shown in FIG. 6, the first pattern 139 and the second pattern 136 may have the same interval between neighboring peaks or valleys, or may have different intervals. And, it may be provided in the form of a combination of the same interval 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 or may be partially formed.

The electrode assembly 131 is sealed together with the electrolyte inside the exterior materials 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 current collector 132a and a positive electrode active material 132b, the negative electrode 134 includes a negative electrode current collector 134a and a negative electrode active material 134b, and the positive electrode current collector 132a ) and the negative electrode current collector 134a may be implemented in the form of a plate-shaped sheet having a predetermined area.

That is, the active materials 132b and 134b may be compressed, deposited, or coated on one side or both sides of the respective current collectors 132a and 134a of the positive electrode 132 and the negative electrode 134 . In this case, the active materials 132b and 134b may be provided on the entire area of the current collectors 132a and 134a or may be partially provided on a partial area of the current collectors 132a and 134a.

In addition, a negative terminal 135a and a positive terminal 135b for electrical connection with an external device may be formed from respective bodies of the positive current collector 132a and the negative current collector 134a. Here, the positive electrode terminal 135b and the negative electrode terminal 135a may extend from the positive electrode current collector 132a and the negative electrode current collector 134a and protrude from one side of the exterior materials 137 and 138, or may be provided as an exterior material ( 137 and 138) may be provided to be exposed on the surface.

In this case, the cathode active material 132b and the anode active material 134b may contain a polytetrafluoroethylene (PTFE) component. This is to prevent the cathode active material 132b and the anode active material 134b from being peeled off or cracked from the current collectors 132a and 134a during bending.

Meanwhile, the separator 133 disposed between the anode 132 and the cathode 134 may include a nanofiber web layer 133b on one or both sides of the nonwoven fabric layer 133a.

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

Preferably, the nanofiber web layer 133b may be composed of only polyacrylonitrile nanofibers to secure spinnability and uniform pore formation.

The exterior materials 137 and 138 are made of plate-shaped members having a certain area, and are intended to protect the electrode assembly 131 from external force by accommodating the electrode assembly 131 and the electrolyte therein.

To this end, the exterior materials 137 and 138 are provided as a pair of first and second exterior materials 137 and 138, and are sealed along the edges with an adhesive so that the electrolyte and electrode assembly 131 accommodated inside are removed from the outside. to prevent exposure and leakage to the outside.

In the case of the exterior materials 137 and 138, after the first and second exterior materials 137 and 138 are composed of two members, the rim side constituting the sealing part may be both sealed with an adhesive or made of one member. After being folded in half along the width direction or length direction, the rest of the butted portion may be sealed through an adhesive.

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Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art who understand the spirit of the present invention may add elements within the scope of the same spirit. However, other embodiments can be easily proposed by means of changes, deletions, additions, etc., but these will also fall within the scope of the present invention.

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100: bracelet type auxiliary battery 110: band unit
120a: first fastening member 120b: second fastening member
121: body 121a: seating surface
121b: receiving groove 122: protrusion
123: charging port 124: circuit part
125: magnet member 130: flexible battery

Claims (10)

A band unit having a built-in flexible battery for supplying power to an electronic device to be charged; and
A pair of fastening parts provided to correspond to each other at both ends of the band part to maintain or release the wearing state of the band part;
The pair of fastening parts include a body provided with a charging port for electrical connection with an external device, a protrusion protruding from the upper surface of the body at a predetermined height, and a seating surface formed on the upper surface of the body to surround the protrusion. A first fastening member including a first fastening member, and a second fastening member formed in a ring shape so as to be in contact with the seating surface while surrounding the circumference of the protrusion when fastened with the first fastening member,
The second fastening member moves from the top of the protrusion toward the seating surface and is engaged with the protrusion,
The bracelet-type auxiliary battery of claim 1 , wherein the protrusion is formed in a dome shape so that the second fastening member can slide along the surface of the protrusion when the second fastening member is coupled or separated. delete According to claim 1,
A bracelet-type auxiliary battery in which a magnet member is provided on at least one side of the seating surface and the second fastening member. According to claim 1,
The bracelet-type auxiliary battery comprising a display unit for displaying at least one of information of an image, a number, and a character in the protrusion. According to claim 1,
The flexible battery,
electrode assembly; and
an exterior material for sealing the electrode assembly together with an electrolyte solution;
a first pattern formed on the exterior material such that a plurality of peaks and valleys are alternately disposed along the longitudinal direction of the exterior material; and
A bracelet-type auxiliary battery comprising: a second pattern formed on the electrode assembly to match the first pattern along the longitudinal direction of the electrode assembly. delete delete delete delete delete

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