KR200141045Y1 - Battery pack - Google Patents

Abstract

A first battery accommodating part for accommodating and supporting the first and second batteries arranged in parallel and electrically connected in series, a pair of first holes are formed on an upper surface thereof, and a pair of second holes are formed on an outer surface thereof; A first cover having a pair of third holes formed under the two holes and having a groove-shaped electrode support portion connecting the first hole and the second hole, and the first battery accommodating part and the first cover. A first case which is integrally formed with a first connection part for connecting and supporting a part of the outer surfaces of the first and second batteries; A second battery accommodating portion coupled to the first battery accommodating portion of the first case to accommodate and support the first and second batteries, a second cover coupled to the first cover, and the second battery accommodating portion And a second connection part which connects the second cover and exposes and supports a part of the outer surfaces of the first and second batteries, and is integrally formed with the first case. A second case covering a space in which the second battery is accommodated; And a connection end electrically connected to the electrodes of the first and second batteries by being inserted into the first hole of the first case, and extending from the connection end to be inserted into the third hole via the second hole. As a result, a battery pack having fixed ends fixed to the first case and having first and second electrode terminals mounted on the electrode support part is posted.

Description

Battery pack

The present invention relates to a battery pack, and more particularly, to a battery pack used as a power source for a portable device, in particular for a camera.

An example of a battery pack used as a power source for a portable device is disclosed in Japanese Utility Model Laid-Open No. 61-38861. The battery pack of Japanese Patent Application Laid-Open No. 61-38861 has a pair of cases which are combined to form an inner space, a pair of batteries which are stored in the inner space of the pair of cases and electrically coupled, and exposed to the outer surface of the case. The negative electrode terminal is connected to the positive electrode terminal (+,-terminal) of the battery, respectively.

According to the battery pack of Japanese Patent Application Laid-Open No. 61-38861, since the pair of electrode terminals are located on either the end face or the side of the case, the design freedom of contact with the mechanism is high, and the outside of the electrode terminal is supported by a support plate formed in the opening. The problem of impact and deformation is solved.

However, the other end of the electrode terminal may not be sufficiently inserted into the recessed portion formed inside the opening, and may be in a floating state or a shifted state. In addition, when one end of the electrode terminal is electrically connected to the electrode terminal of the battery group, the electrode terminal becomes higher than the recessed portion due to the reaction caused by the pressure during welding, resulting in poor appearance of the battery pack.

A battery pack capable of solving the above problem is disclosed in Japanese Utility Model Application Publication No. Hei 5-35562 (Applicant 松下 電氣 産業 株式會社).

As shown in FIGS. 1 to 4, the battery pack 10 of the Song-Ha Electric Co., Ltd. is a pair of batteries 12 electrically connected in series and a positive electrode terminal 14 of the battery 12. A space for accommodating a pair of electrode terminals 16 and a pair of batteries 12, each of which is electrically connected thereto, and a pair of cases 18 and 20 to which the electrode terminals 16 are fixed.

The electrode terminal 16 is supported by an inverted L-shaped support part 24 formed in the upper part of the case 18 by penetrating through the opening 22 formed in the upper side of the case 18, and the other case 20 is coupled to the case. It is fixed at (18, 20).

According to the battery pack 10 of the above-mentioned transmitter and receiver, the electrode terminal 16 is supported by forming the inverted L-shaped support part 24 from the side surface of the case 18 to the edge part of a cross section, and the other The electrode terminal 16 is fixed to the cases 18 and 20 by inserting the other end of the electrode terminal 16 into the recessed part 26 formed in the inside of the cross section of the side case 20 of the side.

However, since the electrode terminal 16 is fixed to the cases 18 and 20 only by the coupling of the pair of cases 18 and 20, the battery pack 10 of the Song-Ha Electric Co., Ltd. Careful attention is required when combining. In addition, since the pair of batteries 12 are accommodated in the inner spaces of the cases 18 and 20, the volume of the battery pack 10 becomes larger than the volume of the battery 12 itself.

Accordingly, an object of the present invention is to provide a battery pack that is small in volume and easy to manufacture.

1 is an exploded perspective view of a battery pack according to the prior art;

2 is a plan view of a battery pack according to the prior art;

3 is a cross sectional view along line A-A in FIG. 2;

4 is an enlarged cross-sectional view of part B of FIG. 3;

5 is an exploded perspective view of a battery pack according to a first embodiment of the present invention;

6 is a plan view of the battery pack of FIG. 5;

FIG. 7 is a cross sectional view along line C-C in FIG. 6;

8 is an enlarged view of part D of FIG. 7;

9 is a cross-sectional view taken along line C-C of FIG. 6, according to a second embodiment of the present invention; And

FIG. 10 is an enlarged view of part E of FIG.

* Explanation of symbols for main parts of the drawings

100: battery pack 110: the first battery

112: second battery 114: electrode

120: first electrode terminal 122: second electrode terminal

130: first case 140: second case

160: connection 132: first battery compartment

134: first cover 136: first connection portion

142: second battery compartment 144: second cover

146: second connection portion

The battery pack for achieving the object of the present invention, the first battery compartment for storing and supporting the first and second batteries that are aligned in parallel and electrically connected in series, a pair of first holes are formed on the upper surface A pair of second holes formed at a side surface thereof, a first cover having a groove-shaped electrode support part connecting the first hole and the second hole, and connecting the first battery accommodating part and the first cover; A first case integrally formed with a first connection part supporting and exposing a part of the outer surface of the first and second batteries; A second battery accommodating portion coupled to the first battery accommodating portion of the first case to accommodate and support the first and second batteries, a second cover coupled to the first cover, and the second battery accommodating portion And a second connection part which connects the second cover and exposes and supports a part of the outer surface of the first and second batteries, and is integrally formed, and the first and second parts are connected by the first case. A second case covering a space in which the second battery is accommodated; And a connection end electrically connected to the electrodes of the first and second batteries by being inserted into the first hole of the first case, and extending and bent from the connection end and inserted into the second hole to the first case. It is provided with a fixed end fixed to each, and has a first electrode terminal and a second electrode mounted on the electrode support.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals designate like elements in the accompanying drawings.

(Example 1)

5 to 8 illustrate a battery pack 100 according to a first embodiment of the present invention.

In the drawing, the battery pack 100 according to the first embodiment of the present invention, the first and second batteries 110 and 112, the first and second batteries 110 and 112, in which different electrodes are electrically connected in series. The first and second electrode terminals 120 and 122 electrically connected to the electrode 114 of the first electrode, the first case 130 to which the first and second electrode terminals 120 and 122 are fixed, and the first case. Coupled with the 130 is provided with a second case 140 for receiving the first and second batteries (110, 112).

The first and second cells 110 and 112 are aligned in parallel, and each electrode, for example, the positive electrode (+) of the first battery 110 and the negative electrode of the second battery 112 or the first battery 110. The negative electrode (-) of the ()) and the positive electrode (+) of the second battery 112 are electrically connected in series by the connecting piece 116.

As shown in FIG. 5, the first and second electrode terminals 120 and 122 have a U-shape and are connected to the electrodes 121 and 123 of the first and second batteries 110 and 112. And fixed ends 124 and 125 fixed to the first case 130.

The fixed ends 124 and 125 are bent several times to have a U-shaped shape.

As illustrated in FIG. 3, the first case 130 has a planar shape having a W shape, and includes a first battery accommodating part 132 that accommodates and supports the first and second batteries 110 and 112. And a first cover 134 to which the first and second electrode terminals 120 and 122 are fixed, and a first connector 136 connecting the first battery accommodating part 132 and the first cover 134. do. The first battery accommodating part 132, the first cover 134, and the first connecting part 136 are integrally provided.

The first hole 135 is formed on the upper surface of the first cover 134, the second hole 137 is formed on the outer surface of the first cover 134, and the electrode support 138 is formed on the first hole (the upper surface of the first cover 134). 135 and the outer second hole 137 is formed as a groove.

The fixed ends 124 and 125 of the first and second electrode terminals 120 and 122 are inserted into the second holes 137, and the connection ends 121 and 123 are inserted into the first holes and thus the first and second electrodes 120 and 122 are inserted into the first holes. It is electrically connected to the electrodes (-, +) of the batteries 110 and 112.

In addition, the radius of the arc portion of the first cover 134 is formed to be the same as the radius of the first and second batteries (110, 112). The inner side of the first connector 136 is convex along the radius of the first and second cells 110 and 112 and the outer side is concave.

The second case 140 is coupled to the first battery accommodating part 132 and includes a second battery accommodating part 142 and a first cover 134 that accommodate and support the first and second batteries 110 and 112. The second cover 144 is coupled, and a second connection part 146 connecting the second battery accommodating part 142 and the second cover 144 is provided. The second battery accommodating part 142, the second cover 144, and the second connecting part 146 are integrally provided.

The radius of the arc portion 149 of the second cover 144 is formed to be the same as the radius of the first and second batteries 110 and 112. In addition, the second connection portion 146 is formed on the outside of the plane and the inside is formed convex.

Hereinafter, the assembly process of the battery pack 100 according to the first embodiment of the present invention.

First, the first and second batteries 110 and 112 are connected in series using the connecting piece 116. The fixing ends 124 and 125 of the first and second electrode terminals 120 and 122 are inserted into the second holes 137 of the first cover 134 and bent inward to fix the connecting ends 121 and 123. Insert into the first hole 135.

Next, the first and second batteries 110 and 112 connected in series by the connecting piece 116 are seated on the first battery accommodating part 132 of the first case 130 and the first and second electrode terminals ( After connecting the connection ends 121 and 123 of the 120 and 122 to the first and second electrodes 114, respectively, the second case 140 is coupled to the first case 130.

As such, the outer surfaces of the first and second batteries 110 and 112 accommodated in the first and second cases 140 are exposed.

(Example 2)

9 and 10 illustrate a battery pack 200 according to a second embodiment of the present invention.

In the drawing, the battery pack 200 according to the second embodiment of the present invention, all the components except the first and second electrode terminals 120 and 122, and the first case 130, the battery pack of the first embodiment In the present embodiment, the first and second electrode terminals 120 and 122 and only the first case 130 will be described.

As shown in FIG. 5, the first and second electrode terminals 120 and 122 have a U-shape and are connected to the electrodes 121 and 123 of the first and second batteries 110 and 112. And fixed ends 124 and 125 fixed to the first case 130.

The fixed ends 124 and 125 are bent inward to have a U-shaped shape.

As illustrated in FIG. 5, the first case 130 has a W-shaped plane shape, and includes a first battery accommodating part 132 that accommodates and supports the first and second batteries 110 and 112. And a first cover 134 to which the first and second electrode terminals 120 and 122 are fixed, and a first connector 136 connecting the first battery accommodating part 132 and the first cover 134. do.

The first hole 135 is formed on the upper surface of the first cover 134, the second hole 137 is formed on the outer surface, and the third hole 141 is formed below the second hole 137. The electrode support part 138 connects the first hole 135 on the upper surface of the first cover 134 and the second hole 137 on the outer side, and is formed as a groove.

The fixed ends 124 and 125 of the first and second electrode terminals 120 and 122 are inserted into the third hole 141 via the second hole 137, and the connection ends 121 and 123 are connected to the first hole. It is inserted into the hole and electrically connected to the electrodes (-, +) of the first and second batteries 110 and 112.

In addition, the radius of the arc portion 139 of the first cover 134 is formed to be the same as the radius of the first and second cells (110, 112). The inner side of the first connector 136 is convex along the radius of the first and second cells 110 and 112 and the outer side is concave.

Hereinafter, the assembly process of the battery pack 200 according to the second embodiment of the present invention.

First, the first and second batteries 110 and 112 are connected in series using the connecting piece 116, and the fixed ends 124 and 125 of the first and second electrode terminals 120 and 122 are connected to the first cover ( It is fixed to the first cover 134 by being inserted into the third hole 141 via the second hole 137 of the 134, and the connecting ends 121, 123 are inserted into the first hole 135.

Next, the first and second batteries 110 and 112 connected in series by the connecting piece 116 are seated on the first battery accommodating part 132 of the first case 130 and the first and second electrode terminals ( After connecting the connection ends 121 and 123 of the 120 and 122 to the first and second electrodes 114, respectively, the second case 140 is coupled to the first case 130.

As apparent from the above description, the battery pack of the present invention can securely and easily fix the electrode terminal to the case, and has an advantage of reducing the overall volume by removing unnecessary portions of the case.

Although the present invention has been described above according to embodiments of the present invention, various modifications are possible within the scope without departing from the spirit of the present invention as defined by the appended claims. If you can see it clearly.

Claims (3)

A first battery accommodating part for accommodating and supporting the first and second batteries arranged in parallel and electrically connected in series, a pair of first holes are formed on an upper surface thereof, and a pair of second holes are formed on an outer surface thereof; A first cover having a pair of third holes formed under the two holes and having a groove-shaped electrode support portion connecting the first hole and the second hole, and the first battery accommodating part and the first cover. A first case which is integrally formed with a first connection part for connecting and supporting a part of the outer surfaces of the first and second batteries; A second battery accommodating portion coupled to the first battery accommodating portion of the first case to accommodate and support the first and second batteries, a second cover coupled to the first cover, and the second battery accommodating portion And a second connection part which connects the second cover and exposes and supports a part of the outer surfaces of the first and second batteries, and is integrally formed with the first case. A second case covering a space in which the second battery is accommodated; And a connection end electrically connected to the electrodes of the first and second batteries by being inserted into the first hole of the first case, and extending from the connection end to be inserted into the third hole via the second hole. The battery pack is characterized in that it comprises a fixed end fixed to the first case and the first and second electrode terminals which are seated on the electrode support. The battery pack as claimed in claim 1, wherein the planar phenomenon of the first case is W-shaped. According to claim 2, wherein the radius of the arc of the first cover and the first housing portion is the same as the radius of the first and second batteries, the outer side of the first connection portion is formed concave and the inner side is convex, The radius of the arc of the second cover and the second accommodating portion is the same as the radius of the first and second batteries, the outer side of the second connecting portion is formed in a plane, characterized in that the inner side is formed convexly.