JPS6026450Y2 - Cell case for group battery configuration - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a single cell case used when a plurality of single cells are combined to form a group battery.

Generally, in order to construct a group battery by combining a plurality of single cells, it is necessary to create cases of various shapes depending on the number of single cells and how to arrange them.

However, in order to manufacture various cases, it is necessary to manufacture molds and the like each time, which poses problems in that it is time-consuming and extremely expensive.

The purpose of the present invention is to provide a cell case for configuring a group battery that can be used commonly when configuring a group battery by connecting a plurality of cells in series and when configuring a group battery by connecting a plurality of cells in parallel. There is a particular thing.

Embodiments of the present invention will be described in detail below with reference to the drawings.

In Figures 1 to 4, reference numeral 1 denotes a case body that has a hole 1a in the shaft core as a hollow part for inserting a cell, and the hole 1a is formed so that a cell can be fitted therein, and both ends are open. are doing.

2.2', . . . are dovetail-shaped locking protrusions formed on the outer periphery of the case body 1 at angular intervals of 600 degrees.

3,3. . . . is a locking recess formed between adjacent locking projections 2, 2 and having a shape into which the locking projection 2 can fit.

As shown in FIG. 1, each of the locking protrusions 2 and the locking recesses 3 are provided over the entire length of the main body 1 in parallel to the axis.

4,4. . . . are locking convex portions 2, 2 . . . on one end surface of the case body 1 in the axial direction. ... are locking protrusions protrudingly provided at positions corresponding to 5, 5, respectively. ... are locking holes formed at positions corresponding to the locking protrusions 4.4, . . . on the other end surface of the case body 1.

The illustrated locking protrusion 4 has a mushroom shape with an enlarged head, and each locking hole 5 has an inner large-diameter hole 5a, a small-diameter hole 5b, and a large-diameter hole 5.
a and a slit 5c spanning the small diameter hole 5b, so that each locking protrusion 4 can elastically engage the corresponding locking hole 5.

By using the unit cell case of the present invention formed as described above, a case for group batteries can be made by combining a large number of units, as shown in FIGS. 5 and 6.

That is, when a plurality of cells are connected in series to form a group battery, each cell can be connected in series by fitting the locking protrusions 4 of the other case adjacent to each locking hole 5 of the case housing each cell. A case for a group battery can be constructed by combining the cases of (
See Figure 5.

). In addition, when unit cells are arranged in parallel, a group battery case is assembled by fitting the locking protrusion 2 of the adjacent case into the locking recess 3 of each case and joining the plurality of cases in the lateral direction. (see Figure 6).

). FIG. 7 shows another embodiment of the present invention, in which the number of locking protrusions 2 and locking recesses 3 and the number of locking protrusions 4 and locking holes 5 are set as above. The number of locking protrusions 4, 4 is increased compared to the embodiment. ...The pitch between them is 30°.

FIG. 8 shows another embodiment of the present invention. In this embodiment, the profile of the cross section of the case body is approximately square, and the locking protrusions 2 and the locking protrusions are located near the corners of the case body. A recess 3 is formed.

According to this embodiment, no gap is formed between the cases.

As described above, according to the present invention, a locking recess and a locking protrusion that are shaped to engage with each other are provided on the outer side of the case body, and a locking protrusion is provided on one end surface and a locking protrusion is provided on the other end surface. Since each locking hole is provided for the locking protrusion to fit into, cases containing single cells can be lined up and connected both vertically and horizontally, making it easy to form a group battery. There are advantages.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view of a case according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIGS. 3 and 4 are sectional views showing the locking holes of the case according to the present invention, The bottom view, FIGS. 5 and 6 are front views and plan views showing how the cases are connected together, and FIGS. 7 and 8 are plan views showing other embodiments of the present invention, respectively. DESCRIPTION OF SYMBOLS 1... Case body, 1a... Hollow part (hole) for inserting a single battery, 2... Locking protrusion, 3...
...Latching recess, 4...Lock protrusion, 5...
・Latching hole.

Claims (1)

[Scope of utility model registration request] The case body includes a case body having a hollow part for inserting a cell with openings at both ends in the axial direction, and a locking recess and a locking protrusion shaped to be able to fit into each other from the axial direction of the case body on the outer surface of the case body. and are formed alternately in a direction surrounding the axis, a locking protrusion is provided on one end surface of the case body, and a locking protrusion is provided on the other end surface of the case body at a position corresponding to the locking protrusion. A unit cell case for forming a group battery, characterized in that locking holes each having a shape into which a locking protrusion can be elastically engaged are provided.