JP2016213026A - Structure for assembly battery configured by connecting multiple secondary batteries in parallel by two conductive plates - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for an assembly battery that is configured by connecting a plurality of secondary battery in parallel by two conductive plates.SOLUTION: A purpose of improving spatial operability is achieved while improving practicality and safety and without increasing a side face space and an end face space of a secondary battery set by installing the two conductive plates at the same side of the secondary battery set. The two conductive plates are molded integrally, and include conductive parts for connecting the secondary batteries in parallel and cathode heads to be power output ends. Between the conductive part and the cathode head, wiring work is not required, thereby achieving a purpose of simplifying a parallel path without generating short-circuiting or lead wire drop-off caused by the wiring work.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a structure of an assembled battery configured by connecting a plurality of secondary batteries in parallel by two conductive plates.

  Secondary batteries that are widely used at present are rectangular secondary batteries, soft-packed secondary batteries, and the like. As a practical technique for meeting the demand for high-power batteries, the battery industry employs a method of increasing the number of secondary batteries and connecting them in parallel to form one high-power collective battery.

  However, in the above-described conventional assembled battery, there is a defect that requires immediate improvement in the actual use situation. In other words, the conventional assembled battery is formed by connecting a number of secondary batteries in parallel. However, in the course of use, only one secondary battery fails, and the assembled battery becomes unusable. If the battery is not removed, it cannot be reused. In addition, if the damaged secondary battery is not electrically isolated from other normal secondary batteries, other normal secondary batteries will also fail, and in the worst case, all secondary batteries will fail. , Safety may be affected.

  In addition to designing the above-mentioned practicality and safety, it is necessary to consider whether the configuration space of the assembled battery is excessive or the parallel path is too complicated. .

  Therefore, the present inventor considered that the above-mentioned drawbacks can be improved, and as a result of intensive studies, the present inventor has arrived at a proposal of the present invention that effectively improves the above-described problems by rational design.

  The present invention has been made in view of the above circumstances, and in order to solve the above problems, the present invention provides a structure of an assembled battery configured by connecting a plurality of secondary batteries in parallel by two conductive plates. The main purpose is to provide. In other words, the second conductive plate is installed on the same side of the secondary battery set while mainly improving practicality and safety, and without increasing the side space and end surface space of the secondary battery set, the best Achieve spatial operations.

  Another object of the present invention is to provide an assembled battery structure in which a plurality of secondary batteries are connected in parallel by two conductive plates, that is, while improving the practicality and safety. A conductive plate is integrally formed, and has a conductive portion for arranging the secondary batteries in parallel and a cathode head as a power output end, and wiring work between the conductive portion and the cathode head is not required. Short circuit and dropout of conductors do not occur due to work, and the purpose of simplifying the parallel path is achieved.

  In order to solve the above-described problems and achieve the above object, the present invention provides a structure of an assembled battery in which a plurality of secondary batteries are connected in parallel by two conductive plates according to the present invention. The secondary batteries are formed by arranging the secondary batteries in the same direction, and each of the secondary batteries has a battery main body having a battery end face and a battery side face located on the same plane, and an anode projecting from the battery end face. A secondary battery set including a head and a cathode head; a first conductive part installed on the battery end face and electrically connected to each of the anode heads; and a first molded part integrally formed with the first conductive part. A first cathode head, the first cathode head is disposed on the battery side surface of the first battery body, and is installed on the battery end surface and insulated from the first conductive portion. A second conductive portion and the second conductive portion; A second cathode head that is integrally formed with the first cathode head and insulated from the first cathode head, and the second cathode head is a second conductive plate positioned on a battery side surface of the first battery body; A plurality of fuses each having a first conductive end pin installed on the battery end face and electrically connected to the second conductive portion and a second conductive end pin electrically connected to each cathode head; It is characterized by providing.

  Preferably, each of the secondary batteries is a square secondary battery.

  Preferably, each secondary battery is a secondary battery that is soft-wrapped.

  Preferably, a plurality of conductive members are further provided, and each of the conductive members is electrically connected to the first conductive portion, and a second conductive end portion is electrically connected to the anode head. Have

  Preferably, the first conductive end portion of each conductive member is screwed to the first conductive portion of the first conductive plate by a screw, and the second conductive end portion of each conductive member is penetrated into the anode head. And a nut for pressing each of the conductive members is screwed to a location where each of the anode heads extends from the via.

  Preferably, the first conductive portion of the first conductive plate has a plurality of vias penetrated through the anode head, and the first conductive portion is pressed to a place where each anode head extends from the via. A nut for screwing is screwed.

  Preferably, the first conductive end pin of each fuse is screwed to the second conductive portion of the second conductive plate by a screw, and the second conductive end pin of each fuse is a plurality of vias that are penetrated into the cathode head. And a nut for pressing each second conductive end pin is screwed to a location where each cathode head extends from the via.

It is an expanded view of the inclination which shows the part of 1st Embodiment of this invention. It is a block diagram of the inclination which shows 1st Embodiment of this invention. It is a front view which shows 1st Embodiment of this invention. It is a side view which shows 1st Embodiment of this invention. It is a top view which shows 1st Embodiment of this invention. It is an expanded view of the inclination which shows the part of 2nd Embodiment of this invention. It is an inclination figure which shows 3rd Embodiment of this invention. It is an expanded view of the inclination which shows the part of 4th Embodiment of this invention. It is a block diagram of the inclination which shows the part of 4th Embodiment of this invention. It is an expanded view of the inclination which shows the part of 5th Embodiment of this invention. It is an external appearance perspective view which shows the part of 6th Embodiment of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments described below.

<First Embodiment>
Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. The structure of an assembled battery (see FIGS. 1 to 5) configured by connecting a plurality of secondary batteries in parallel by two conductive plates according to the first embodiment of the present invention is mainly a secondary battery set, The first conductive plate 20, the second conductive plate 30, and a plurality of fuses 40 are included.
The secondary battery set is formed by arranging a plurality of secondary batteries 10 along the same direction, and each of the secondary batteries 10 includes a battery end surface 111 and a battery side surface 112 positioned on the same plane. A battery main body 11, and an anode head 12 and a cathode head 13 protruding from the battery end surface 111. In this preferred embodiment, each of the secondary batteries 10 is a rectangular secondary battery and is arranged in close proximity, and the battery side surface 112 of the first battery body 11A is the side surface of the secondary battery set.

  The first conductive plate 20 is provided on the battery end surface 111 and electrically connected to the anode heads 12. The first conductive plate 20 is integrally formed with the first conductive portion 21. The first cathode head 22 is located on the battery side surface 112 of the first battery body 11A. According to the present embodiment, the first cathode head 22 is positioned on the battery side surface 112 of the first battery main body 11A and is spaced from the battery side surface 112 to serve as a power output terminal of the battery assembly.

The electrical connection between the first conductive portion 21 of the first conductive plate 20 and each anode head 12 is achieved by a plurality of conductive members 51. Each conductive member 51 has a first conductive end portion 511 electrically connected to the first conductive portion 21 and a second conductive end portion 512 electrically connected to each anode head 12.
The first conductive end portion 511 of each conductive member 51 is screwed to the first conductive portion 21 of the first conductive plate 20 by a combination of a screw 52 and a washer 53, and the second conductive end portion of each conductive member 51. Reference numeral 512 denotes a plurality of vias 513 penetrating the anode head 12, and nuts 54 for pressing the conductive members 51 are screwed to portions where the anode heads 12 extend from the vias 513. Is done.

The second conductive plate 30 is provided on the battery end surface 111 and is insulated from the first conductive portion 21. The second conductive plate 30 is integrally formed with the second conductive portion 31 and the first cathode. The second cathode head 32 is insulated from the head 22, and the second cathode head 32 is positioned on the battery side surface 112 of the first battery body 11A.
According to the present embodiment, the second cathode head 32 is located on the battery side surface 112 of the first battery body 11A and is spaced from the battery side surface 112, and becomes the power output end of the battery assembly.

The plurality of fuses 40 are installed on the battery end surface 112 and are electrically connected to the second conductive part 31 and the second conductive member electrically connected to the cathode heads 13. Each has an end pin 42.
In the present embodiment, the first conductive end pin 41 of each fuse 40 is screwed to the second conductive portion 31 of the second conductive plate 30 by a combination of a screw 52 and a washer 53, and the second The conductive end pin 42 has a plurality of vias 43 penetrating the cathode head 13 and presses each second conductive end pin 42 at a location where each cathode head 13 extends from the via 513. When all the fuses 40 are electrically connected to one secondary battery 10 and the current of the fuse 40 exceeds the limit value, the fuse 40 is blown out due to high temperature. Is done.

The above is a description of the main structural members and forms thereof according to the first embodiment of the present invention. The effect by embodiment of this invention is demonstrated below.
A fuse 40 is electrically connected between the cathode head 13 and the second conductive plate 30 of each secondary battery 10 of the secondary battery set according to the present invention. Both of them are equipped with respective fuses 40, and if any one of the secondary batteries 10 fails or the current becomes irregular, it is electrically connected to the secondary battery 10 that has failed or has an abnormal current. The fuse 40 is melted due to the high temperature, and the first conductive end pin 41 and the second conductive end pin 42 are disconnected, thereby causing the secondary current in which the fault or the abnormal current is generated. The circuit of the battery 10 is effectively disconnected.
At the same time, the other secondary batteries 10 operated in parallel are not affected, and the entire parallel electric energy maintains sufficient power, and the power is interrupted to affect the power. Since there is no risk of accidents due to sudden stoppage of power, it is possible to effectively improve the safety of use of the battery pack, and it can be continuously used without eliminating the failure location. Clearly increases.

  Next, in the present invention, the first conductive plate 20 and the first conductive portion 21 and the second conductive portion 31 of the second conductive plate 30 for connecting the secondary batteries 10 in parallel are the battery end surfaces 111 on the same plane. Are installed together on the battery end surface 111 on the same plane, and the first conductive plate 20, the second conductive plate 30, and The fuses 40 are positioned on the same end surface of the secondary battery set, and the first conductive portion 21 and the second conductive portion 31 of the first conductive plate 20 and the second conductive plate 30 are the first battery body 11A. The first conductive plate 20, the second conductive plate 30, and the fuse 40 are slightly protruded from the battery side surface 112 of the secondary battery 10 as shown in FIG. By being placed lower than the height of the original design of the electrode 13, the without increasing the side space and the end surface space of the secondary battery set, thereby achieving the object of the preferred operation of the space.

  In addition, the first conductive plate 20 and the second conductive plate 30 are integrally formed, respectively, and serve as a power output terminal with the first conductive portion 21 and the second conductive portion 31 for arranging the secondary batteries 10 in parallel. A first cathode head 22 and a second cathode head 32; between the first conductive portion 21 and the first cathode head 22; and between the second conductive portion 31 and the second cathode head 32. This eliminates the need for wiring work, avoids short-circuits and dropouts of the conductive wires, and achieves the purpose of simplifying the parallel path.

Second Embodiment
The structure of the assembled battery (see FIG. 6) configured by connecting a plurality of secondary batteries in parallel by two conductive plates according to the second embodiment of the present invention is similar to the secondary battery set and the first conductive. The plate 20, the second conductive plate 30, and a plurality of fuses 40 are included.
The second embodiment differs from the first embodiment in a case for housing the secondary battery set, the first conductive plate 20, the second conductive plate 30, and the fuses 40. 61, and the first cathode head 22 and the second cathode head 32 are installed and exposed to the outside of the case 61, so that the installation and installation are not only convenient, the secondary battery set, Circuit members such as the first conductive plate 20, the second conductive plate 30, and the fuses 40 are sufficiently protected (for example, waterproof, dustproof, shockproof, etc.). In the present invention, the first cathode plate 22 and the second cathode head 32 of the first conductive plate 20 and the second conductive plate 30 are screwed together by the screwing member 62 to simplify installation and maintenance work. .

<Third Embodiment>
The structure of the assembled battery (see FIG. 7) configured by connecting a plurality of secondary batteries in parallel by two conductive plates according to the third embodiment of the present invention is similar to the secondary battery set and the first conductive. The plate 20, the second conductive plate 30, and a plurality of fuses 40 are included.
The third embodiment is different from the first embodiment in that the first conductive portion 21 of the first conductive plate 20 has a plurality of vias 211 penetrating the anode head 12, and each of the anode heads 12. This is a point where a nut 54 for pressing the first conductive portion 21 is screwed into a portion extending from the via 211. This improves the convenience of installation of the assembled battery and the stability of the entire structure.

<Fourth embodiment>
The structure of the assembled battery (see FIGS. 8 and 9) configured by connecting a plurality of secondary batteries in parallel by the two conductive plates according to the fourth embodiment of the present invention is similar to the secondary battery set, The first conductive plate 20, the second conductive plate 30, and a plurality of fuses 40 are included.
The fourth embodiment differs from the first embodiment in that the secondary battery set is formed by arranging a plurality of secondary batteries 10 along the same direction, and each of the secondary batteries 10 is a flexible package. And the second conductive end pin 42 of the fuse 40 is electrically connected directly to the cathode head 13 of the secondary battery 10 by a combination of a screw 44 and a washer 45, and the first conductive The conductive member 51 electrically connected between the first conductive portion 21 of the plate 20 and each of the anode heads 12 has a second conductive end portion 512 that is a combination of a screw 52 and a washer 53 so that the secondary battery is connected. It is a point screwed to 10 anode heads 12.

<Fifth Embodiment>
The structure (see FIG. 10) of the assembled battery configured by connecting a plurality of secondary batteries in parallel by the two conductive plates according to the fifth embodiment of the present invention is similar to the secondary battery set and the first conductive. The plate 20, the second conductive plate 30, and a plurality of fuses 40 are included.
The fifth embodiment is different from the fourth embodiment in that a case 61 for housing the secondary battery set, the first conductive plate 20, the second conductive plate 30, and the fuses 40 is provided. In addition, the first cathode head 22 and the second cathode head 32 are installed and exposed to the outside of the case 61, so that not only the installation and installation are convenient, but also the secondary battery set, the first The circuit member such as the one conductive plate 20, the second conductive plate 30, and each of the fuses 40 is sufficiently protected (for example, waterproof, dustproof, shockproof, etc.).

<Sixth Embodiment>
The structure of an assembled battery (see FIG. 11) configured by connecting a plurality of secondary batteries in parallel by two conductive plates according to the sixth embodiment of the present invention is similar to the secondary battery set and the first conductive. The plate 20, the second conductive plate 30, and a plurality of fuses 40 are included.
The sixth embodiment differs from the fourth embodiment in that the first conductive portion 21 of the first conductive plate 20 is directly electrically connected to the anode head 12 of the secondary battery 10 by a combination of a screw 23 and a washer 24. It is a point connected to.

  The above-described embodiments are merely for explaining the technical idea and features of the present invention, and are intended to allow those skilled in the art to understand the contents of the present invention and to carry out the same with the present invention. It is not intended to limit the scope of the claims. Accordingly, improvements or modifications having various similar effects made without departing from the spirit of the present invention shall be included in the following claims.

DESCRIPTION OF SYMBOLS 10 Secondary battery 11 Battery main body 11A Battery main body 111 Battery end surface 112 Battery side surface 12 Anode head 13 Cathode head 20 First conductive plate 21 First conductive part 22 First cathode head 23 Screw 24 Washer 30 Second conductive plate 31 Second conductive Part 32 Second cathode head 40 Fuse 41 First conductive end pin 42 Second conductive end pin 43 Via 44 Screw 45 Washer 51 Conductive member 511 First conductive end 512 Second conductive end 513 Via 52 Screw 53 Washer 54 Nut 61 Case 62 Threaded member

Claims (7)

The secondary batteries are formed by arranging a plurality of secondary batteries along the same direction, and each of the secondary batteries has a battery main body and a battery side surface located on the same plane, and is provided protruding from the battery end surface. A secondary battery set comprising an anode head and a cathode head,
A first conductive part installed on the battery end face and electrically connected to each of the anode heads; and a first cathode head formed integrally with the first conductive part; A first conductive plate located on the battery side of the first battery body;
A second conductive part installed on the battery end face and insulated from the first conductive part; a second cathode head integrally formed with the second conductive part and insulated from the first cathode head; The second cathode head is a second conductive plate located on the battery side of the first battery body,
A plurality of fuses each having a first conductive end pin installed on the battery end face and electrically connected to the second conductive portion and a second conductive end pin electrically connected to each cathode head; Characterized by comprising,
A structure of an assembled battery in which a plurality of secondary batteries are connected in parallel by two conductive plates.   The assembled battery structure according to claim 1, wherein each of the secondary batteries is a square secondary battery, wherein the plurality of secondary batteries are connected in parallel by the two conductive plates.   The assembled battery structure according to claim 1, wherein each of the secondary batteries is a soft-packed secondary battery, wherein the plurality of secondary batteries are connected in parallel by the two conductive plates.   A plurality of conductive members, each of the conductive members having a first conductive end electrically connected to the first conductive portion and a second conductive end electrically connected to the anode head; A structure of an assembled battery comprising a plurality of secondary batteries connected in parallel by the two conductive plates according to claim 1.   A first conductive end portion of each conductive member is screwed to a first conductive portion of the first conductive plate by a screw, and a second conductive end portion of each conductive member is a plurality of holes for penetrating the anode head. The two conductive members according to claim 3, wherein a nut for pressing each conductive member is screwed to a portion having a via and each anode head extending from the via. An assembled battery structure in which a plurality of secondary batteries are connected in parallel by a plate.   The first conductive portion of the first conductive plate has a plurality of vias penetrated through the anode head, and presses the first conductive portion to a place where each anode head extends from the via. The structure of an assembled battery comprising a plurality of secondary batteries connected in parallel by two conductive plates according to claim 1, wherein a nut is screwed.   The first conductive end pin of each fuse is screwed to the second conductive portion of the second conductive plate by a screw, and the second conductive end pin of each fuse has a plurality of vias that are penetrated into the cathode head. 2. The two conductive plates according to claim 1, wherein a nut for pressing each second conductive end pin is screwed to a place where each of the cathode heads extends from the via. A structure of an assembled battery configured by connecting a plurality of secondary batteries in parallel.

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