KR20150055790A - Jig for Assembling of Battery To Capable of Fixing the Position of the Connector And Battery Prepared Using the Same - Google Patents

Abstract

The present invention relates to a jig for assembling a battery capable of fixing a position of a connector, and a battery manufactured using the same, and more specifically, to a jig for assembling a battery comprising: a jig body having an indentation portion where a main body of a battery assembly is detachably installed on one side; and a jig cover having a connector insertion groove corresponding to an external circumferential surface shape in order to fix the connector of the battery assembly to the main body of the battery assembly, and to a battery manufactured using the same.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a jig for battery assembly and a battery using the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a battery assembly jig capable of fixing a position of a connector and a battery manufactured using the same, and more particularly, to a jig body having a jig body (jig body); And a jig cover having a connector fitting groove corresponding to an outer circumferential surface shape of the connector so that the connector of the battery assembly can be positively fixed on the body of the battery assembly. And a battery manufactured using the same.

Due to the development of technology and demand for mobile devices, the demand for secondary batteries is also rapidly increasing. Among them, lithium secondary batteries, which have high energy density, high operating voltage and excellent storage and life characteristics, It is widely used as an energy source.

The secondary battery may be used in a detachable structure that is free to be inserted or removed depending on the type of external equipment to which the secondary battery is to be used, or may be used as a built-in structure in which the secondary battery is embedded in an external device. For example, devices such as notebooks can insert and leave batteries according to the user's needs, while devices such as some phones, MPEG Audio Layer-3 (MP3), tablet PCs, smart pads, etc., The use of built-in battery packs is also a problem.

On the other hand, lithium secondary batteries have a variety of combustible materials, and they have a disadvantage in terms of safety because of the danger of overheating, overcurrent, other physical external impact, and the like. Therefore, a lithium secondary battery is connected to a battery cell such as a PTC (Positive Temperature Coefficient) element and a protection circuit module (PCM) as a safety element that can effectively control an abnormal state such as overcharging or overcurrent.

Generally, the built-in secondary battery uses a plate-shaped battery cell suitable for an electrical connection structure, and the PCM is connected to the battery cell through a conductive nickel plate by welding or soldering. That is, the nickel plates are welded or soldered to the electrode terminals of the battery cells, respectively, and the protective circuit board (PCB) is welded to one side of the double-sided tape and the protective tape is attached to the other side, And the nickel plate are welded to each other to connect the PCM to the battery cell.

Such a PCM generally includes a PCB on which a protection circuit is formed, an external input / output terminal electrically connected to the protection circuit of the PCB, and an electrically insulating PCM case on which the PCB is mounted. At this time, the external input / output terminal is connected to one surface of the PCB, which is a protection circuit board, and a connector is attached to an end of the external input / output terminal.

Recently, in order to manufacture a compact battery, a flexible printed circuit board (F-PCB) is used as a connecting material for connecting the connector and the protection circuit of the PCB so that the connector does not protrude from the side of the battery. As shown in FIG.

However, in the case of such manufacturing, there is a problem that the position of the connector is not constant, resulting in a low process efficiency and a high defective rate of connection with an external terminal. Therefore, the demand of customers to fix the position of the connector has been continuously increased .

Therefore, there is a high need for a manufacturing technique capable of fixing the position of the connector to a constant value.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and the technical problems required from the past.

The inventors of the present application have conducted intensive research and various experiments and have found that when a connector fitting groove corresponding to the shape of the outer circumferential surface of a connector is formed in a jig cover constituting a jig for assembling a battery and a battery is assembled using the connector fitting groove, It has been confirmed that the position of the connector can be fixed to a certain level by positioning the connector in the connector fitting groove, and the present invention has been accomplished.

Therefore, the jig for assembling a battery according to the present invention comprises: a jig body having a depression on one side of which a main body of the battery assembly is detachably mounted; And a jig cover having a connector fitting groove corresponding to an outer peripheral surface shape of the connector so that the connector of the battery assembly can be positively fixed on the body of the battery assembly.

At this time, the battery assembly includes a battery cell having electrode terminals formed therein; And a protection circuit module (PCM) electrically connected to the electrode terminals of the battery cell.

In this specification, a battery cell means a state in which an electrode assembly is embedded in a cell case, and a battery assembly is classified as a state in which the PCM is coupled to the battery cell.

More specifically, the electrode assembly of the anode / separator / cathode structure has a thin and low-weight pouch-type battery cell sealed in a battery case of a laminate sheet including a metal layer and a resin layer. But is not limited thereto.

On the other hand, the PCM specifically includes a protection circuit board on which a protection circuit is formed; A connector electrically connected to the external device; And a connection member for electrically connecting the protection circuit board and the connector.

The protection circuit board on which the protection circuit for controlling the overcharge, over-discharge, overcurrent, etc. of the battery is formed may include a positive terminal connection portion and a negative terminal connection portion on one side thereof and, on one side, an external device such as a charger And a connecting member for electrically connecting the battery cell to a connector capable of supplying electric current to the battery cell or providing electric current to the mobile phone, MP3, etc. from the battery cell.

The connection member is not limited as long as it can connect the connector and the protection circuit board. In one specific example, the connection member is made of a flexible printed circuit board (F-PCB) It can be facilitated. For reference, an F-PCB refers to a printed circuit board using a flexible insulating substrate.

Further, in one specific example, the PCM may further include an insulating case in which a protective circuit board is embedded. In this case, since the protection circuit board is configured to be mounted on the insulating case, it is easy to work and the defective rate is relatively reduced as compared with the built-in battery pack which insulates the PCM by using the conventional tape, It has the advantage of being able to realize a clean appearance.

The insulating case may be configured to enclose the PCM except for the connector and a part of the connecting member. In this case, it is preferable that the insulating case can secure stable mounting and insulation as a whole.

In one specific example, the structure of the insulating case is not particularly limited as long as it is a form that surrounds the PCM, but it may be composed of a first case member and a second case member coupled with the protection circuit board embedded therein . In this case, the first case and the second case are not limited as long as they have a built-in PCM and are assembled to have a predetermined mechanical rigidity, and various structures are possible.

A jig for assembling a battery according to the present invention used for assembling a battery of the present invention includes a jig main body having a depression on one side of which a main body of the battery assembly is detachably mounted, And the jig body and the jig cover may be hinged so that the jig cover is not separated from the body of the jig.

As described above, since the jig main body and the jig cover are connected in a hinged structure, movement of the jig cover can be minimized when the jig cover is covered on the jig main body, thereby minimizing the error range of the position of the connector desirable.

In one specific example, the indent formed on the jig body may be formed to a depth of 50 to 150% based on the thickness of the battery cell. When the battery assembly is formed at a depth lower than 50%, it is difficult to fix the battery assembly, and when it is deeper than 150%, it is difficult to detach the battery assembly.

In order to facilitate the detachment of the battery assembly, a detachment groove extending in a greater width than the outer circumferential surface of the battery cell may be additionally formed in the jig body.

In addition, the jig body may further include a case indentation for detachably mounting the insulating case. In this case, too, a tear-off groove extending from the case indentation may be additionally formed .

 Further, in order to facilitate opening and closing of the jig cover by the operator, the jig body may be provided with a through-hole for inserting the finger at a position corresponding to the outer peripheral surface or both outer peripheral surfaces of the jig cover.

The shape of the tearing grooves and the through-holes is not limited as long as they do not interfere with the respective purposes.

In one specific example, the connector fitting groove formed in the jig cover is not limited as long as it has a shape corresponding to the shape of the outer circumferential surface of the connector, but it is also possible to easily open and close the jig cover even after positioning the connector in the connector fitting groove by covering the jig cover Or the like.

When such a jig for assembling a battery is used, there is an effect that the position of the connector can be fixed at a constant level by positioning the connector in the connector fitting groove at the time of manufacturing the battery.

The present invention provides a method of assembling a battery using the jig for battery assembly. Specifically,

A process of attaching the main body of the battery assembly to the recessed portion of the jig main body in which the jig cover is opened;

A step of covering the jig cover on the jig main body and fixing the connector on the main body of the battery assembly so that the connector is positioned in the connector fitting groove of the jig cover; And

And a step of opening the jig cover and taking out the battery assembly from the jig main body.

At this time, in the process of positioning the connector at the opening of the jig cover, a connection member for electrically connecting the protection circuit board and the connector may be bent.

According to the battery manufacturing method of the present invention, since the connector is always located in the connector fitting groove of the jig cover, it can be fixed on the battery assembly body.

Further, the present invention provides a battery assembled by the battery assembling method and a device including the same.

In this specification, the battery means a state where the connector is fixed in position using the jig.

The device may be, for example, a mobile phone, an MP3 (MPEG Audio Layer-3), a tablet PC, a smart pad, and the like, but is not limited thereto.

As described above, the jig for battery assembly according to the present invention includes the jig cover that constitutes the jig for assembling the battery and includes the connector fitting groove corresponding to the shape of the outer peripheral surface of the connector. In assembling the battery, The position of the connector can be fixed to a fixed value by locating the connector in the connector.

Therefore, the process efficiency can be improved and the connection with the external terminal can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view of a jig for battery assembly with a jig cover opened;
2 is a schematic plan view of a jig for assembling a battery in a state that the jig cover is covered;
3 is a plan schematic view of a battery assembly prior to securing the connector in place in accordance with one embodiment of the present invention;
4 is a plan view schematically showing a state where a battery assembly is mounted on a recessed portion of a jig main body in which a zip cover is opened according to a specific embodiment of the present invention;
5 is a plan view schematically showing a state in which the jig cover is covered and the connector is fixedly positioned on the body of the battery assembly so as to be positioned in the connector fitting groove of the jig cover according to a specific embodiment of the present invention;
6 is a schematic plan view of a battery in which a connector is fixed in place according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. However, the present invention is not intended to be limited by the scope of the present invention.

For ease of understanding of the present invention, only a part of the structure of the battery assembly is shown in the drawings, and detailed structures of other battery assemblies are omitted.

FIG. 1 is a plan view of a state in which a jig cover is opened, and FIG. 2 is a plan view showing a state in which a jig cover is covered. FIG. to be.

1 and 2, a jig 100 for assembling a battery according to the present invention includes a jig body 110 and a jig cover 120. The jig body 110 includes a jig body 110, a jig cover 120, Is connected by a hinge (130).

Specifically, the jig main body 110 includes a depressed portion 111 to which the main body of the battery assembly of the present invention is detachably mounted, and a case indentation portion 112 to which the insulating case with the protective circuit board is detachably mounted Respectively. These indentations 111 and 112 are formed to have substantially the same shape and size as the outer circumferential surface of the battery cell and the insulating case, so that the battery assembly can be stably fixed.

However, if the indentations 111 and 112 are substantially equal in shape and size to the outer surface of the battery cell and the insulating case as described above, it may be difficult to detach the battery assembly, , Tearing grooves (113, 114) extending to a greater width than the outer circumferential surface of the battery cell to facilitate detachment of the battery assembly body, and tearing protrusions Grooves 116 are additionally formed.

The jig cover 120 has a structure capable of being opened and closed by the hinge 130. In order to facilitate opening and closing of the jig cover 120, a through hole 115 for inserting a finger is inserted into the jig main body 110 Respectively. 2, the tear grooves 114 of the battery cells may be formed in the lower surface of the jig cover in a state in which the jig cover is closed so as to be used for facilitating the opening and closing of the jig cover together with the through holes 115. [ As shown in FIG. Therefore, the through hole 115 may be formed on the outer peripheral surface of one side of the jig cover, or may be formed on the outer peripheral surfaces of both sides.

2, a connector fitting groove 121 is formed in the jig cover 120 to correspond to the shape of the outer circumferential surface of the connector for fixing the connector on the battery assembly main body. The connector 100 is formed to be positioned on the depressed portion 111 where the main body of the battery assembly is mounted while the jig cover 120 is closed. The position can be fixed constantly in place on the body of the battery assembly.

1 and 2, the shape of the connector fitting groove 121 is rectangular. However, the shape of the connector fitting groove 121 is not limited thereto, and various shapes are possible depending on the shape of the connector to be used.

3 schematically illustrates a battery assembly 200 according to the present invention before fixing the connector in place using the battery assembly jig 100 of FIGS. 1 and 2. As shown in FIG.

Referring to FIG. 3, the battery assembly 200 includes a battery cell 210 and a PCM 220, each of which has a cathode terminal 212 and a cathode terminal 211 formed at one end thereof.

The negative terminal 212 and the positive terminal 211 of the battery cell 210 are electrically connected to the protection circuit board 221 of the PCM 220 as a plate-like conductive member.

The PCM 220 according to an embodiment of the present invention includes a protection circuit board 221 on which a protection circuit is formed, a connector (not shown) electrically connected to the external device, And includes a connector at one end thereof and includes a connection member 225 for electrically connecting the protection circuit board 221 and the connector. Meanwhile, the PCM 220 of the present invention may further include an insulating case (not shown) in which the protection circuit board 221 is embedded.

The protection circuit board 221 on which the protection circuit is formed is connected to a connector (not shown) connected to the protection circuit board through a connection member 225 connected to one side in addition to a protection circuit for controlling overcharging, And a negative electrode terminal connecting portion 223 and a positive electrode terminal connecting portion 222 are further formed at positions corresponding to the negative electrode terminal 212 and the positive electrode terminal 211 of the battery cell 210, respectively.

The connection member 225 is electrically connected to the protection circuit board 221 to supply current to the battery cell 210 from an external device such as a charger or to supply an electric current But it is made of a flexible printed circuit board (F-PCB) on which a connector (not shown) is mounted at the end, so that bending can be facilitated if necessary.

4 to 5 are plan views of an embodiment showing a process of fixing the connector to the body of the battery assembly 200 by using the battery assembly 200 of FIG.

These drawings will be described with reference to FIGS. 1 to 3 as follows.

3 and 4, the battery assembly 200 is mounted on the jig main body 110 in which the jig cover 120 of the battery assembly jig 100 is opened. In this case, the battery cell 210 corresponds to the indentation 111, the PCM 220 corresponds to the case recess 112, and the connection member 225 (not shown) electrically connected at one side of the PCM 220 Is mounted corresponding to the through hole 115 for inserting the finger formed on the jig main body 110 to facilitate opening and closing of the jig cover 120. [

On the other hand, an insulating case (not shown) may be first attached to the case indentation 112 to mount the battery assembly 200 on the jig main body 110. At this time, the insulating case is composed of the first case member and the second case member, and the first case member is mounted before the battery assembly 200.

As described above, when the battery assembly 200 is correctly mounted on the jig main body 110, the jig cover 120 on which the connector fitting groove 121 is formed is covered.

Fig. 5 is a schematic view showing a state in which the jig cover 120 is covered. 5, the connector fitting groove 121 of the jig cover 120 is positioned on the main body of the battery assembly 200 with the jig cover 120 closed.

After covering the jig cover 120 on the jig main body 110, the connector 224 including the connector 224 is bent at one end so that the connector 224 is inserted into the connector fitting groove 121). As a result, the connector 224 can be fixed in position on the body of the battery assembly 200, as shown in FIG.

After the connector 224 is positioned in the connector fitting groove 121 of the jig cover 120, the jig cover 120 is again opened to remove the battery assembly 200 from the jig main body 110 by the tearing grooves 113, 114 ) Can be easily taken out. At this time, the connector fitting groove 121 of the jig cover 120 is formed with an opening structure, so that even after the connector 224 is positioned on the main body of the battery assembly 200 by bending the connecting member 225, It is.

Meanwhile, the second case member may be fastened to the first case member such that the insulating case covers the PCM 220 before the jig cover 120 is opened.

A battery 200 'manufactured by the above process is schematically shown in FIG.

Referring to FIG. 6, the connector 224 'may be fixedly fixed in place by bending of the connecting member 225'. The insulating case is not shown to show the bent state of the connecting member 225 '.

The assembly of the battery with the connector fixed at a predetermined position can be accomplished by a complicated process by the jig for battery assembly according to the present invention, and the connection with the external terminal can be improved by fixing the position of the connector.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, will be.

Claims (16)

A jig body having a depression on one side thereof to which the main body of the battery assembly is removably mountable; And
A jig cover having a connector fitting groove corresponding to an outer peripheral surface shape of the connector so that the connector of the battery assembly can be positively fixed on the body of the battery assembly;
Wherein the battery pack is mounted on the jig. The battery pack according to claim 1,
A battery cell having electrode terminals formed therein; And
A protection circuit module (PCM) electrically connected to the electrode terminals of the battery cell;
Wherein the jig comprises: 3. The method of claim 2,
A protection circuit board on which a protection circuit is formed;
A connector electrically connected to the external device; And
A connection member for electrically connecting the protection circuit board and the connector;
Wherein the battery pack is mounted on the jig. The jig for assembling a battery according to claim 3, wherein the connecting member is formed of a flexible printed circuit board (F-PCB). The jig for battery assembly according to claim 3, wherein the PCM further comprises an insulating case having a protection circuit board. The jig for assembling a battery according to claim 5, wherein a case indentation to which the insulating case is detachably mounted is additionally formed on the jig main body. The jig for assembling a battery according to claim 5, wherein the insulating case comprises a first case member and a second case member which are coupled with the protection circuit board embedded therein. The jig for assembling a battery according to claim 1, wherein the indent is formed at a depth of 50 to 150% based on the thickness of the battery cell. The jig for assembling a battery according to claim 1, wherein the indentation portion further has a tear-off groove extending a greater width than an outer circumferential surface of the battery cell. The jig for assembling a battery according to claim 1, wherein the jig body and the jig cover are connected by a hinge structure. The jig body according to claim 10, wherein the jig body is provided with a through hole for inserting a finger for easy opening and closing of the jig cover at a position corresponding to the outer peripheral surface or both outer peripheral surfaces of the jig cover A jig for battery assembly. The jig for battery assembly according to claim 1, wherein the connector fitting groove is formed in an opening structure corresponding to an outer peripheral surface shape of the connector. A method of assembling a battery using the jig for battery assembly according to any one of claims 1 to 12,
A process of attaching the main body of the battery assembly to the recessed portion of the jig main body in which the jig cover is opened;
A step of covering the jig cover on the jig main body and fixing the connector on the main body of the battery assembly so that the connector is positioned in the connector fitting groove of the jig cover; And
A step of opening the jig cover and taking out the battery assembly from the jig main body;
≪ / RTI > The method as claimed in claim 13, wherein a connecting member for electrically connecting the protection circuit board and the connector is bent in a process of positioning the connector in the connector fitting groove of the jig cover. A battery according to claim 13, wherein the battery is assembled by the method according to claim 13. A device comprising a battery according to claim 15.

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