KR20070022888A - Device of Assembling Base Plate of Battery Pack for a Portable Terminal - Google Patents

Abstract

The present invention relates to a substrate assembly assembly apparatus of a battery pack mainly used in mobile communication devices and portable terminals, and improves the configuration of the substrate assembly, and the printed circuit board and the like embedded in the cap without fixing the adhesive, and fixed to the cover It is to be done.

To this end, in the battery pack is configured by fixing the substrate assembly 11 on the upper portion of the case (4) in which the battery (5) is inserted, the cap (9) and cover (6) constituting the substrate assembly 11 It is to be configured to be integrated by the mechanical locking means.

Description

Device assembly board assembly of battery pack for mobile terminal {Device of Assembling Base Plate of Battery Pack for a Portable Terminal}

1 is an exploded perspective view illustrating a state of use of a typical built-in battery pack

Figure 2 is a longitudinal cross-sectional view showing a conventional battery pack

3 is a longitudinal cross-sectional view of the coupled state of FIG.

Figure 4 is an exploded perspective view showing an embodiment of the present invention

5 is a longitudinal cross-sectional view of the coupled state of FIG.

Figure 6 is a longitudinal cross-sectional view showing another embodiment of the present invention

Figure 7 is a longitudinal sectional view showing another embodiment of the present invention

Explanation of symbols on the main parts of the drawings

4: case 5: storage battery

6: cover 9: cap

11 substrate assembly 13 upward protrusion

13a, 15: hook 14, 16: hook

17: adhesive

The present invention relates to a battery pack mainly used in mobile communication devices and portable terminals, and more specifically, to improve the configuration of the substrate assembly to be fixed to the cover by embedding a printed circuit board in the cap without using a separate adhesive. The present invention relates to a substrate assembly assembly apparatus for a battery pack for a portable terminal.

In general, portable terminals such as mobile phones, laptops, and personal digital assistants (PDAs) are called battery packs (referred to as "Inner Packs") that contain accumulators, which are rechargeable secondary batteries. ] Is used to detach and attach to one side of the terminal, it is widely used because of its mobility and easy to carry.

In the case of such a portable terminal, when the battery is used for a predetermined time, the battery coupled to the terminal is discharged. Thus, when the battery is discharged and sufficient power is not supplied from the battery to the terminal, the terminal cannot be used.

Therefore, in order to reuse the portable terminal, the discharged battery must be separated and recharged using a charger and then recombined, or replaced with another charged battery.

As described above, a battery pack used in a portable terminal has a problem in that a safety accident such as burnout or explosion occurs when an overcurrent or overvoltage is applied. Most battery packs have the above safety accident. In order to prevent this, a printed circuit board (PCB) including a protection circuit module (PCM) is installed.

1 is an exploded perspective view illustrating a general use of a built-in battery pack, when the insertion groove (3) for inserting the battery pack 2 is formed in the lower portion of the portable terminal (1) to use the portable terminal The battery pack 2 is sufficiently charged to be mounted to the portable terminal 1 through the insertion groove (3).

Accordingly, the terminal of the battery pack 2 is electrically connected to the terminal located inside the insertion groove 3 can be used a portable terminal.

 Since the built-in battery pack 2 has high durability against external shock, the reliability of a product (portable terminal) can be improved, and thus its use is increasing.

FIG. 2 is a longitudinal cross-sectional view illustrating an exploded view of a conventional battery pack, and FIG. 3 is a longitudinal cross-sectional view of the coupled state of FIG. 2, wherein the terminal is disposed at the center of the upper surface of the battery 5 accommodated inside the case 4 with an open top. 5b) is fixed, and the + terminal 5a is fixed to one side.

The terminal 6b is fixed to an insulator by the insulator 6a at the center of the cover 6 made of a conductor positioned on the upper portion of the storage battery 5, and is exposed to the upper and lower surfaces of the cover 6, and the cover ( The rest of 6) consists of a conductor, which plays the role of a + terminal.

In the molding member 8 positioned above the cover 6 and electrically connected to the terminal of the printed circuit board 7, +,-elastic terminals 8a and 8b are inserted into the molding member when the molding member is ejected. Is fixed.

In addition, patterns 7a and 7b which serve as + and − terminals so that the + and − elastic terminals 8 a and 8 b that are insert-fixed to the molding member 8 are elastically connected to the bottom surface of the printed circuit board 7. Is formed and a plurality of terminals 7c connected to terminals of the terminal are formed on the upper part thereof, and the caps 9 are wrapped and protected by a cap 9. The cap 9 is provided on a printed circuit board 7. The through hole 9a is formed so that the plurality of terminals 7c formed are exposed to the outside.

Therefore, the printed circuit board 7, the molding member 8, and the cover 6 are sequentially inserted into the cap 9 so that the connection surface (border) of the cap 9 and the cover 6 is attached to the adhesive 10. When the adhesive is bonded to each other, the + and-elastic terminals 8a and 8b inserted into the molding member 8 are deformed and the bottom surface is elastically connected to the terminal 6b and the surface fixed to the cover 6, respectively. The top surface of the elastic terminals 8a and 8b is elastically connected to the patterns 7a and 7b formed on the bottom surface of the printed circuit board 7 so that they are electrically connected to each other, thereby completing the substrate assembly 11. .

As such, when the substrate assembly 11 is completed, the cover 6 of the substrate assembly faces downward, and then closely adheres to the case 4 in which the battery 5 is embedded. The terminal 6b fixed insulated by the 6a is electrically connected to the terminal 5b of the battery 5, and the + terminal 5a of the battery 5 is connected to a cover 6 made of a conductor. These terminals are brought into close contact with each other electrically, and in this state, they are integrated by laser welding the joints of the case 4 and the cover 6.

Thereafter, the insulating paper 12 is taped to the outer circumferential surface of the case 4, thereby producing the battery pack.

However, the conventional battery pack having such a structure fixes the cover with the cap and the adhesive in a state in which the printed circuit board, the molding member, etc. are sequentially inserted into the cap, so that a shock is generated during the transfer of the finished battery pack between the test processes. In addition, when the battery pack is inadvertently dropped on the floor during use or charging of the terminal, a fatal defect occurs in which the adhesive surfaces of the cap and the cover are separated from each other.

The present invention has been made to solve such a conventional problem, it is an object to improve the structure of the cap and cover to assemble them without using a separate adhesive.

According to an aspect of the present invention for achieving the above object, in a battery pack configured by fixing the substrate assembly on the upper part of the case in which the battery is inserted, the cap and cover constituting the substrate assembly integrated by a mechanical locking means Provided is a substrate assembly assembly apparatus for a battery pack for a mobile terminal, characterized in that configured to be.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 4 to 7 as an embodiment.

Figure 4 is an exploded perspective view showing an embodiment of the present invention and Figure 5 is a longitudinal cross-sectional view of the coupled state of Figure 4, the present invention is fixed to the substrate assembly 11 on top of the case (4) in which the battery (5) is inserted In the process of producing a battery pack is characterized in that the cap 9 and the cover 6 constituting the substrate assembly 11 is configured to be integrated by a mechanical locking means.

In the embodiment of the present invention, as shown in Figure 4 and 5, the locking means is located on both sides of the cover 6 inwardly and at the same time as opposed to the inside of the cover (9), each of the locking holes (13a) A component (printed circuit board) formed inside the cap 9 includes an upwardly protruding piece 13 formed therein and a cap 9 having a hook 14 formed on an inner surface that matches the position of the engaging hole formed on the upwardly protruding piece. When the cover 6 is coupled to the cap 9 in a built-in state, the hook 14 is configured to be caught by the catching hole 13a.

At this time, even if the upwardly protruding pieces 13 formed on the cover 6 are formed side by side, since the cover 6 is produced by die casting, there is no problem, but the cap 9 is injection molded so that the hook ( In the case of forming the side by side 14, the width b of the cap 9 is narrow, so that it is difficult to process the undercut due to the formation of the hook, so it is more preferable to form the upwardly protruding piece 13 to be offset.

As shown in Figure 6 of another embodiment of the present invention, a plurality of the locking means is formed to coincide with the outer peripheral surface of both sides, and each of the upward protrusion pieces 13 and the locking holes 13a are formed, and the latches formed on the upward protrusion pieces 13. When the cap (9) is coupled to the cover (6) in a state in which the hook (9) is formed on the inner surface corresponding to the position of the ball (13a) and the parts are embedded in the cap (9) Hook 14 was configured to be hooked to the engaging hole (13a).

Figure 7 is a longitudinal cross-sectional view showing another embodiment of the present invention, the locking means is positioned on both sides of the cover 6 inwardly at the same time as the thickness of the cap (9) and at the same time opposed to the hook 16, When the caps 9 are coupled to the cover 6 in a state in which the caps 9 are formed on the inner surface corresponding to the positions of the caps 9, respectively, and the parts are embedded in the caps 9, hooks ( 16 may be configured to be hooked to the catching hole (15).

In each of the above embodiments, when the cover 6 is assembled to the cap 9 by the locking means, the coupling portion thereof is further bonded by the adhesive 17, and thus the bonding force between the cap 9 and the cover 6 is achieved. Can be further increased.

Referring to the operation of the present invention configured as described above is as follows.

First, in the process of diecasting the cover 6, an upwardly protruding piece 13 having a locking hole 13a is formed on the upper surface of the cover 6 as shown in FIG. 5 or 6, or the hook 16 as shown in FIG. ) Will be integrally formed.

On the other hand, in the injection molded cover 6 to form the hook 14 inwardly as shown in FIG. 5, to form the hook 14 outwardly as shown in FIG. 6, or to form the catching hole 15 as shown in FIG. 7. do.

Therefore, in the case of the form as shown in FIG. 5 as an embodiment, the cover 6 is fixed to the upper surface of the case 4 by the joining means, and then a component such as a printed circuit board is placed inside the cap 9. When the cap 9 is pressed in the upper part of the cover 6 after being embedded, the hook 14 formed on the cap 9 is deformed outward by the upwardly protruding piece 13 made of a metal material, and thus the cap 9 is Since the hook 14 is assembled to the cover 6 and the hook 14 is positioned at the locking hole 13a of the upwardly protruding piece 13, the hook 14, which has been deformed outward, is caught in the locking hole 13a while being restored to an initial state. Their assembly work is completed.

As shown in FIG. 6, in another embodiment, the cover 6 is fixed to the upper surface of the case 4, and then a component such as a printed circuit board is embedded in the cap 9. When pressing the upper portion of the cover 6, the hook 14 formed on the cap 9 is deformed inward, so that the cap 9 is assembled to the cover 6, and the hook 14 is upwardly projected. After being located in the engaging hole (13a) of the hook 14, which was deformed inward is restored to the initial state is caught by the engaging hole (13a) is completed their assembly work.

On the other hand, as shown in Figure 7 shown in another embodiment, the cover 6 is fixed to the upper surface of the case 4 as in one embodiment, and then a component such as a printed circuit board inside the cap 9 is embedded. After pressing the cap (9) from the top of the cover (6) while the cap (9) is slightly deformed to the outside while being assembled to the cover (6), after the catching hole (15) is located on the hook (16) deforms to the outside As the cap 9 is restored to its initial state, the hook 16 is caught by the catching hole 15 formed in the cap 9, thus completing their assembly work.

In each embodiment of the present invention that is mechanically coupled as described above, by applying the adhesive 17 to the joint portion of the cap (9) and the cover (6) it is possible to further increase their bonding force.

As described above, the present invention forms a catching hole in one side of the cap or cover and forms a hook to the opposite parts to mechanically couple them, so that their assembly is possible without using an additional adhesive. Accordingly, even if the battery packs are inadvertently impacted, the coupling parts are prevented from falling down, thus improving productivity by shortening the process and significantly improving the reliability of the product from consumers. You get

Claims (6)

A battery pack configured by fixing a substrate assembly on an upper part of a case in which a battery is inserted, wherein the cap and cover constituting the substrate assembly are integrated by a mechanical locking means. Assembly assembly device. The method of claim 1, The locking means is located on both sides of the cover to the inside and at the same time as opposed to the thickness of the cap is formed with a hook formed on the inner surface corresponding to the position of the locking hole formed on the upper projection and the locking hole formed in the upward projection, respectively. The assembly of the battery pack assembly of the battery pack for a mobile terminal, characterized in that when the cover is coupled to the cap in a state in which the parts are built in the cap is assembled to the hook hole. The method of claim 2, The upwardly protruding pieces formed to face the cover are positioned so as to be mutually displaced. The method of claim 1, The locking means is formed in plural in accordance with the outer peripheral surface on both sides and formed with a cap formed with hooks on the inner surface corresponding to the position of the engaging hole formed in the engaging hole formed in each of the upwardly projecting piece to the inside of the cap Board assembly assembly device of a battery pack for a mobile terminal, characterized in that the hook is hooked to the engaging hole when the cover is coupled to the cap in the built-in state. The method of claim 1, The locking means comprises a hook which is positioned on both sides of the cover inwardly at the same time as the thickness of the cap and is formed to face each other, and a cap having a locking hole formed on an inner surface corresponding to the position of the hook to embed the parts inside the cap. Board assembly assembly device of a battery pack for a mobile terminal, characterized in that when the cover is coupled to the cap is hooked in the engaging hole. The apparatus for assembling the substrate assembly of a battery pack for a portable terminal according to any one of claims 2 to 5, wherein the coupling portion thereof is further bonded by an adhesive in a state in which the cover is assembled to the cap.

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