JPH0218928Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field The present invention is a battery electrolysis system that enables easy injection of electrolyte into batteries with different pitch intervals for injection taps. Relating to a liquid syringe.

(2) Conventional technology Conventionally, batteries for vehicles, etc. are constructed by connecting multiple cells (for example, six 2V cells in a row), but it is necessary to inject electrolyte into these cells. As a container, for example, as disclosed in Japanese Utility Model Application Publication No. 50-49627, a plurality of small containers of each cell unit are collected and housed in an outer box, and the electrolyte in the small containers is collected. It is known that each cell is filled at the same time.

(3) Problems that the invention aims to solve However, batteries have different external dimensions and capacities due to their in-vehicle use, and due to these differences, the pitch spacing of the liquid filler taps of multiple cells is different, so it is difficult to use batteries for each battery. Compatible containers and outer boxes must be prepared, which not only increases manufacturing costs, but also requires time and effort to select containers and outer boxes that are compatible with the battery when filling the electrolyte, resulting in poor work efficiency. Ta.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an electrolyte injector that allows electrolyte to be easily injected into batteries with a plurality of liquid injection plugs having different pitch intervals using the same container unit. With the goal.

B. Structure of the invention (1) Means for solving the problem In order to achieve the above object, the present invention provides a plurality of container units for injecting electrolyte into each of the plurality of cells of a battery, and a plurality of container units for each of the container units. Each container unit has an injection pipe protruding from its upper surface and a connecting protrusion from its side surface. The present invention is characterized in that a plurality of connecting holes, which are removably fitted into each connecting protrusion, are formed at the pitch intervals.

(2) Effect Since a plurality of identical container units can be connected by connecting plates at a predetermined pitch interval, by selectively using a plurality of types of connecting plates with different pitch intervals, the plurality of containers can be It becomes possible to easily change the pitch interval of the unit,
As a result, the same container unit can be used to simultaneously fill the cells of a plurality of types of batteries with the electrolyte solution, each of which has a different pitch interval between the filler plugs of the cells.

Furthermore, each container unit can be easily and quickly attached to and removed from the connecting plate by simply inserting and removing the connecting protrusions of the unit into and from the respective connecting holes of the connecting plate.

(3) Example Hereinafter, an example of the present invention will be explained with reference to the drawings. In Figures 1 and 2, the electrolyte injector is
It is composed of a plurality of container units U having the same shape and a connecting plate _C1 for removably connecting them.

Each container unit U is formed into a sealed prismatic shape by blow molding a synthetic resin material, and an injection pipe 1 is integrally extended upward at the center of the upper surface thereof, and an injection pipe 1 is integrally provided at the center of the side surface in the vertical direction. In the above, fitting recesses 2 each having a U-shaped cross section are formed, and a connecting protrusion 3 is integrally provided at the center of the bottom surface of each of these fitting recesses 2 .

A specified amount of electrolyte is injected into the plurality of container units U through the injection pipes 1, and then the tip 4 of the injection pipe 1 is crushed and sealed by heat welding, and the container units U are hermetically sealed.

The connecting plate _C1 is formed into a rectangular shape, the width of which is large enough to fit into the fitting recess 2, and the same number of connecting holes 5 as the number of container units U are formed along the longitudinal direction of the connecting plate C1. The holes are drilled in a line at a predetermined pitch interval A. The pitch interval A is set equal to the pitch interval of the liquid filling taps of a plurality of cells of a predetermined battery.

A plurality of container units U are arranged in a line with their connecting protrusions 3 facing the same direction, and the connecting plate C ₁ is inserted into the fitting recess 2 of the container unit U.
At the same time, the plurality of connecting holes 5 of the connecting plate _C1 are respectively fitted to the connecting protrusions 3, so that a container unit U is formed as shown in FIG.
... can be integrally connected at equal pitch intervals A by the connecting plate _C1 .

Next, the procedure for injecting electrolyte into each cell of the battery will be explained.

First, in order to fill each cell of a battery with an electrolytic solution in which the pitch interval of the liquid filling stopper is A, a plurality of container units U... are connected together by the connecting plate _C1 as described above, and then After cutting and unsealing the sealed tip 4 of the injection pipe 1 of the unit U..., if the container units U are tilted together, it is possible to simultaneously fill multiple cells of the battery with the electrolyte. can.

Further, FIG. 3 shows another embodiment of the present invention, in which the structure of the connecting plate _C2 is different from the previous embodiment. That is, the connecting plate C ₂ is
The pitch interval B of the plurality of connecting holes 6 is longer than that of the previous embodiment, and the pitch interval B of the plurality of connecting holes 6 is the same as that of the connecting holes 6 of the previous embodiment, in accordance with the pitch interval of the liquid filler of the cell of another type of battery. It is set longer than pitch interval A.

When filling electrolyte into each cell of a battery whose filler tap pitch is B, a plurality of container units U... are connected together by the connecting plate _C2 , and the previous step is performed. The electrolytic solution may be filled in exactly the same manner as in the case of the connecting plate _C1 in the example.

In both of the above embodiments, only one side of a plurality of container units is connected by one connecting plate, but it is also possible to connect both opposing sides of the container units by two connecting plates. In this way, the connection between the plurality of containers becomes even stronger, and more stable electrolyte filling can be performed.

In addition, the number of container units can be increased or decreased depending on the number of liquid filling taps for each battery, and if the number of connecting plates is prepared in advance to match the types of batteries with different pitch intervals of liquid filling taps, it is possible to increase or decrease the number of connecting plates. By selectively using the connecting plates depending on the type, each type of injection work can be performed accurately.

C. Effects of the invention As described above, the electrolyte injector of the present invention has a plurality of container units for injecting electrolyte into each cell of a battery, and a device for connecting these container units in a line with a predetermined pitch interval. Each of the container units has an injection pipe protruding from its upper surface and a connecting protrusion from its side surface, and the connecting plate is removably fitted into each of the connecting protrusions. Since a plurality of connecting holes are drilled with the above-mentioned pitch spacing, a plurality of identical container units can be connected with a predetermined pitch spacing by the connecting plate, and therefore, a plurality of identical container units can be connected with a predetermined pitch spacing. By selectively using different types of connecting plates, the pitch spacing of the plurality of container units can be easily changed, so the same container unit can be used for multiple cells of multiple types of batteries with different voltages and capacities. The electrolyte can be filled at the same time. As a result, unlike in the past, there is no need to prepare multiple types of dedicated containers and outer boxes for each battery with different pitch spacing of the filling stopper.
It is sufficient to form the container with a small capacity corresponding to the capacity of each cell of the battery, and the manufacturing cost of the container can be significantly reduced. In addition, stores that handle the syringe of the present invention only need to store one type of container unit and a plurality of types of connecting plates, thereby reducing storage and management costs.

Furthermore, each container unit can be attached to and detached from the connecting plate by simply inserting and removing the connecting protrusions of the unit into the respective connecting holes of the connecting plate, so the operation is simple. Since it is only necessary to drill holes at a pitch, processing of the connecting plate is easy and can contribute to cost reduction.

[Brief explanation of the drawing]

Figures 1 and 2 show the first embodiment of the syringe of the present invention; Figure 1 is an exploded perspective view, Figure 2 is an assembled perspective view, and Figure 3 is a perspective view of the injector according to the present invention. 3 is a perspective view similar to FIG. 2, showing a second embodiment of the invented syringe; FIG. A, B...Pitch spacing, _C1 , _C2 ...Connection plate,
U... Container unit, 1... Injection pipe, 3...
Connecting protrusion, 5, 6... Connecting hole.

Claims (1)

[Scope of utility model registration request] An electrolyte injector for injecting electrolyte into each of a plurality of cells of a battery, and a plurality of container units U for injecting electrolyte into each cell,
A connecting plate C ₁ for connecting these container units U... in a line with a predetermined pitch interval A; B;
C ₂ , each container unit U has an injection pipe 1 on its upper surface and a connecting protrusion 3 on its side surface, and the connecting plates C ₁ ;C ₂ have
An electrolyte injector for a battery, characterized in that a plurality of connecting holes 5 and 6, which are removably fitted into each of the connecting projections 3, are formed with the pitch intervals A and B.