KR20180051383A - Bluetooth antenna implemented on metal plate connecting battery cell - Google Patents

Abstract

The present invention relates to an antenna implementation of a battery cell. More specifically, the present invention relates to a Bluetooth antenna pattern structure which implements a Bluetooth antenna pattern within a metal plate mounted on the upper part of the battery cell and electrically connecting multiple battery cells in order to receive information on a battery pack without using a separate external antenna. A battery information transmission device comprises: the battery pack including at least two battery cells; a data measuring part connected to the battery cells, and measuring battery information of a battery; a Bluetooth chip receiving the battery information from the data measuring part, and communicating with another device; and the metal plate electrically connecting the battery cells.

Description

[0001] The present invention relates to a Bluetooth antenna implemented on a metal plate connecting a battery cell,

The present invention relates to an antenna implementation of a battery cell, and more particularly, to an antenna implementation of a battery cell, in which a Bluetooth antenna pattern is implemented in a metal plate that is mounted on the battery cell and connects a plurality of battery cells, The Bluetooth antenna pattern structure can receive information of the Bluetooth antenna pattern.

In recent years, as the spread of portable communication devices such as portable PCs and mobile phones has increased, miniaturization and lightening are important for improving the portability of portable communication devices. One of the important parts to improve the miniaturization and light weight of the portable communication device is to downsize the antenna and its surrounding structures and to efficiently place the space.

This portion is an important factor that has improved the development of miniaturization and light weight of portable communication devices. Accordingly, in the related art, a Bluetooth chip is built in a portable communication device and information of a battery pack of a portable communication device is provided using an external antenna connected to the Bluetooth chip.

However, since the conventional art requires a space for connection of an external antenna because a Bluetooth chip built in the battery pack and a separate external antenna are required to be connected to each other, it is not easy to apply the portable communication device to a miniaturized and lightweight communication device .

Therefore, there is a need for a technique capable of information transmission / reception communication of the battery pack without constituting a separate external antenna and improving the size and weight of the portable communication device.

A battery information transmission device according to the present invention includes: a battery pack including at least two battery cells; A data measuring unit connected to the battery cells to measure battery information of the battery; A Bluetooth chip for receiving the battery information from the data measurement unit and communicating with another device; A metal plate electrically connecting the battery cells; .

Here, the metal plate may include a Bluetooth antenna pattern that emits the battery information so that the Bluetooth chip can communicate with other devices within the area of the metal plate.

Wherein the Bluetooth antenna pattern is connected to the ground ground to block external noise.

The battery information transmission structure includes a metal plate for electrically connecting battery cells; A base layer formed by applying an insulating material to the metal plate; An antenna pattern part formed in a part of the base layer and having an antenna pattern formed of a conductor material; A protective layer formed to cover the antenna pattern portion; .

A method of manufacturing a battery information transfer device includes: connecting a metal plate to the battery cells to electrically connect the battery cells; Forming a base layer by applying an insulating material to one surface of the metal plate to form a base layer; Forming an antenna pattern part for forming an antenna pattern on a part of the base layer; Forming a protective layer by applying an insulating material to protect the antenna pattern portion on which the antenna pattern is formed; .

A battery pack according to the present invention includes at least two battery cells; A printed circuit board (PCB) mounted in parallel with the battery cells, on which a Bluetooth chip for receiving battery information of the battery cells is mounted; A metal plate formed on upper and lower parts of the battery cells to electrically connect the battery cells and to implement a Bluetooth antenna pattern radiating battery information in a part of the metal plate; Wherein the Bluetooth antenna pattern formed on the metal plate is electrically connected to a Bluetooth chip mounted on the PCB to radiate battery information from the Bluetooth chip.

Meanwhile, the battery pack may include a data measuring unit for measuring battery information of the battery cells; And a battery management system (BMS) for managing the battery cells; As shown in FIG.

Here, the battery information includes voltage and current of battery cells measured by the data measuring unit.

In addition, the battery information may include at least one of a battery ID, manufacturer information, and battery authentication information of the battery.

According to the present invention, it is possible to provide battery pack information in a compact and lightweight form by implementing a Bluetooth antenna pattern in a metal plate, which is a structure for connecting battery cells without forming a separate external antenna.

FIG. 1 is a view schematically showing a conventional battery information transmitting apparatus.
2 is a schematic view illustrating a battery information transmission apparatus according to an embodiment of the present invention.
3 is a schematic view illustrating a structure for transferring battery information according to the present invention.
4 is a block diagram illustrating a method of manufacturing a battery information transmission device according to the present invention.
5 is a view showing a structure of a battery pack according to the present invention.

Hereinafter, 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. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as " comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise. The word " step (or step) " or " step " used to the extent that it is used throughout the specification does not mean " step for.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

According to the present invention, a battery information transmission device includes: a battery pack including at least two battery cells; A data measuring unit connected to the battery cells to measure battery information of the battery; A Bluetooth chip for receiving the battery information from the data measurement unit and communicating with another device; A metal plate electrically connecting the battery cells; As shown in FIG.

The battery pack 100 referred to in the present invention may refer to any IT device capable of Bluetooth communication including a mobile phone, a notebook computer, and the like.

The other device to which the information of the battery pack 100 referred to in the present invention is transmitted may refer to any IT device capable of Bluetooth communication with a device such as a mobile phone, a notebook, etc. in which the battery pack 100 is installed .

In addition, the battery information may refer to data on a battery including voltage, current, etc. of the battery.

The battery information may include a battery ID of a battery managed by the battery management system (BMS), manufacturer information, battery authentication information, and the like.

The antenna pattern and the Bluetooth antenna pattern referred to in the present specification are the same in structure that are connected to the Bluetooth chip and radiate battery information.

Hereinafter, the present invention will be described in detail with reference to the drawings.

<Comparative Example>

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view schematically showing a conventional battery information transfer apparatus.

Referring to FIG. 1, the battery pack 100 includes at least two battery cells 110, a data measuring unit 120 connected to the battery cells to measure battery information of the battery, A Bluetooth chip 130 for receiving battery information and communicating with other devices, and a metal plate 140 for electrically connecting the battery cells.

The battery pack 100 may include at least two battery cells 110 connected in series and in parallel and may electrically connect the battery cells 110 using the metal plate 140 .

The data measuring unit 120 may measure the current and voltage of the battery cell 110 to check the state of the battery. In addition, the measured current and voltage information of the battery cell 110 may be provided to the Bluetooth chip 130.

The Bluetooth chip 130 may receive the battery information such as current and voltage of the battery cell 110 from the data measuring unit 120 and communicate with other devices. The Bluetooth chip 130 may receive various information of the battery pack 100 from a battery management system (not shown) in addition to the current and voltage information of the battery cell 110 to communicate with other devices .

1, in order to communicate with another device, the Bluetooth chip 130 connects the Bluetooth chip 130 to a separate external antenna 150, The external antenna 150 can communicate by radiating battery information. Therefore, a separate space and cost for constructing the separate external antenna 150 may occur.

In order to solve such a problem, the embodiment of the present invention is not limited to a separate external antenna 150, but a battery information transmitting apparatus capable of transmitting battery information between the apparatuses.

<Examples>

Referring to FIG. 2, the battery pack 100 includes at least two battery cells 110, a data measuring unit 120 connected to the battery cells to measure battery information of the batteries, A Bluetooth chip 130 for receiving information and communicating with other devices, a metal plate 140 for electrically connecting the battery cells, an antenna pattern unit 142 formed in the metal plate, As shown in FIG.

The battery pack 100 may include at least two battery cells 110 connected in series and in parallel. The metal plate 140 may be connected to upper portions of the battery cells 110, Can be electrically connected.

The data measuring unit 120 may measure the current and voltage of the battery cell 110 to check the state of the battery. In addition, the measured current and voltage information of the battery cell 110 may be provided to the Bluetooth chip 130.

A method of measuring a current of the battery cell 110 includes measuring a potential difference across the cell 110 by connecting a current sensing resistor serially connected to the battery cell 110. It is possible to measure the current flowing through the cell 110 using the measured potential difference and identify the direction in which the current flows in the battery cell 110 to check whether the current is charged or discharged or the current does not flow.

The current sensing resistor is a resistor having an extremely low resistance used for checking how much current flows in a specific portion of the circuit. Since the resistance value is very low, the flow of the current is not significantly disturbed, The amount of current of the battery cell 110 can be measured.

The data measuring unit 120 may be configured as a gauge IC, and the gauge IC may be implemented with firmware for measuring current and voltage of the battery to measure the current and voltage of the battery .

The Bluetooth chip 130 receives battery information such as current and voltage of the battery cell 110 from the data measuring unit 120 and transmits battery information such as a voltage and a current of the battery 110 to another device So that communication can be performed.

The Bluetooth chip 130 may receive various information of the battery pack 100 from a battery management system (not shown) in addition to the current and voltage information of the battery cell 110 to communicate with other devices .

2, the battery information transmitting apparatus according to the present invention differs from the conventional battery information transmitting apparatus shown in FIG. 1 in that the Bluetooth chip 130 has a separate external antenna 150 for radiating battery information to other devices, .

In the embodiment of the present invention, the antenna pattern unit 142 may be configured in the metal plate 140 to transmit battery information. The antenna pattern unit 142 may communicate with other devices by implementing an antenna pattern connected to the Bluetooth chip 130 and radiating the battery information.

2, the antenna pattern 142 is formed on the metal plate 140 connecting the conventional battery cells 110 without forming the separate external antenna 150, and the Bluetooth chip 130 A space for constructing a separate external antenna is not required, so that a simpler and more compact battery pack 100 can be realized.

Further, the ground pattern may be formed on the antenna pattern portion 142, and the external noise may be blocked by connecting the antenna pattern to the Bluetooth antenna pattern. Therefore, communication with other devices can be performed more smoothly.

In addition, the other device to which the information of the battery pack 100 is transmitted may refer to any IT device capable of Bluetooth communication with a device such as a mobile phone, a notebook, etc. in which the battery pack 100 is installed.

3 is a schematic view illustrating a structure for transferring battery information according to the present invention.

3, a metal plate 140, a base layer 141, an antenna pattern portion 142, and a protective layer 143 may be used.

The metal plate 140 may be attached to any part of the battery cells 110 connected in series or in parallel to electrically connect the battery cells 110.

The base layer 141 may be formed by applying an insulating material to the metal plate 140.

The base layer 141 may be formed by applying an insulating material to an entire area of the metal plate 140 or an area of the antenna pattern portion 142.

The antenna pattern portion 142 may be formed on a part of the base layer 141. At this time, a Bluetooth antenna pattern for radiating battery information may be formed on the antenna pattern portion 142 by forming a conductor material.

The passivation layer 143 may be formed by applying an insulating material to cover the antenna pattern portion 142. By forming the protective layer 143, the antenna pattern can be protected from the outside.

4 is a view schematically showing a manufacturing method for transferring battery information.

Referring to FIG. 4, a manufacturing method for transferring battery information includes a metal plate connecting step (S10) of attaching a metal plate to the battery cells to electrically connect battery cells; A base layer forming step (S20) of forming a base layer by applying an insulating material to one surface of the metal plate; (S30) forming an antenna pattern part for forming an antenna pattern in a part of the base layer; And forming a protective layer by applying an insulating material to protect the antenna forming portion having the antenna pattern formed thereon (S40).

The step of connecting the metal plate (S10) may be a step of electrically connecting the battery cells 110 by being attached to any part of the battery cells 110 connected in series or in parallel.

The base layer forming step (S20) may include forming an insulating material on one surface of the metal plate. The base layer forming step (S20) may be performed in the entire area of the metal plate or in the antenna pattern area.

The antenna pattern forming step (S30) may be formed in a part of the base layer. When the antenna pattern unit is formed, an antenna pattern may be formed of a conductor material to form an antenna pattern radiating the battery information. The formed antenna pattern can communicate with other devices by radiating battery information of the Bluetooth chip.

The protective layer forming step (S40) may be a step configured to protect the antenna pattern. After forming the antenna pattern portion, an insulating material may be applied to cover the antenna pattern to form a protective layer.

5 is a view showing a structure of a battery pack according to the present invention.

Referring to FIG. 5, the battery pack 200 may include at least two battery cells 210, a printed circuit board 220, and a metal plate 230.

The printed circuit board 220 is arranged in parallel with the battery cells and is connected to a metal plate to be described later. Although not shown in detail, the printed circuit board includes a Bluetooth chip, which receives battery information of battery cells from a data measuring unit (not shown) that measures battery information of the battery cells. The Bluetooth chip can transmit battery information to another device through a Bluetooth antenna pattern implemented in a metal plate described later.

Here, in addition to the Bluetooth chip, each electronic component for constituting a battery pack is mounted on the printed circuit board 220.

The metal plate 230 is formed on upper and lower portions of the battery cells to electrically connect the battery cells. The metal plate electrically connects battery cells through soldering in a region corresponding to an electrode terminal of each battery cell.

Although not shown in detail in the drawings, a Bluetooth antenna pattern is implemented in a part of the metal plate, and a method of implementing the Bluetooth antenna pattern is formed in the manner described above with reference to FIGS. The Bluetooth antenna pattern is electrically connected to the Bluetooth chip mounted on the printed circuit board 220 by using, for example, soldering, spot welding or the like in the 'A' area shown in the figure . Accordingly, the Bluetooth antenna pattern can transmit the battery information to another device by radiating battery information provided from the data measurement unit (not shown) of the Bluetooth chip.

Meanwhile, the Bluetooth chip receives battery information such as voltage and current of battery cells from a data measuring unit, and battery information can be received from a battery management system (BMS) that manages battery cells as a whole. At this time, the battery information received from the battery management system (BMS) may include a unique ID (Battery ID) of the battery managed by the battery management system, manufacturer information, battery authentication information, and the like.

Accordingly, through the connection between the Bluetooth chip and the Bluetooth antenna pattern, the Bluetooth antenna pattern radiates the battery information from which the Bluetooth chip receives the battery information from the battery management system (BMS), so that the device transmits the battery ID, It is possible to recognize the mounted battery using the manufacturer information and to confirm whether or not a suitable battery is mounted / connected using the battery authentication information.

Here, the battery management system (BMS) may collect battery information including voltage, current, etc. of the battery cells measured from the data measuring unit and provide the battery information to the Bluetooth chip.

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 apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention.

100: Battery pack 140: Metal plate
110: Battery cell 142: Antenna pattern part
120:
130: Bluetooth chip

Claims (9)

In a battery information transfer apparatus,
A battery pack including at least two battery cells;
A data measuring unit connected to the battery cells to measure battery information of the battery;
A Bluetooth chip for receiving the battery information from the data measurement unit and communicating with another device;
A metal plate electrically connecting the battery cells;
The battery information transmission device comprising:
The method according to claim 1,
Wherein the metal plate
Wherein the Bluetooth antenna pattern is configured to radiate the battery information so that the Bluetooth chip can communicate with other devices in the area of the metal plate.
The method of claim 2,
Wherein the Bluetooth antenna pattern is connected to the ground ground to block external noise.
In the battery information transmission structure,
A metal plate for electrically connecting battery cells;
A base layer formed by applying an insulating material to the metal plate;
An antenna pattern part formed in a part of the base layer and having an antenna pattern formed of a conductor material;
A protective layer formed to cover the antenna pattern portion; The battery information transmission structure comprising:
A method of manufacturing a battery information transfer device,
In order to electrically connect the battery cells, a metal plate
Attaching a metal plate;
Forming a base layer by applying an insulating material to one surface of the metal plate to form a base layer;
Forming an antenna pattern part for forming an antenna pattern on a part of the base layer;
Forming a protective layer by applying an insulating material to protect the antenna pattern portion on which the antenna pattern is formed; Wherein the battery information transferring device comprises:
At least two battery cells;
A printed circuit board (PCB) mounted in parallel with the battery cells, on which a Bluetooth chip for receiving battery information of the battery cells is mounted;
A metal plate formed on upper and lower parts of the battery cells to electrically connect the battery cells and to implement a Bluetooth antenna pattern radiating battery information in a part of the metal plate;
And,

Wherein the Bluetooth antenna pattern implemented on the metal plate is electrically connected to a Bluetooth chip mounted on the PCB to radiate battery information from the Bluetooth chip.
The method of claim 6,
A data measuring unit for measuring battery information of the battery cells; And
A battery management system (BMS) for managing the battery cells; Wherein the battery pack further comprises:
The method of claim 7,
The battery information includes:
And a voltage and current of battery cells measured by the data measuring unit.
The method of claim 7,
The battery information includes:
A battery ID of the battery, manufacturer information, and battery authentication information.

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