JP2963339B2 - Battery alignment, assembly method and alignment, assembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery positioning and assembling means, and more particularly to a battery suitable for positioning and assembling both electrode cases in a battery having a configuration in which a pair of electrode case opening end faces are fitted and sealed. And an assembling method and apparatus.

[0002]

2. Description of the Related Art Flat (or coin) type batteries are generally used as driving sources for calculators, memory cards, watches, and the like. That is, as shown in FIG. 2 in a sectional view, the configuration of a main part is shown. A cathode case (hereinafter, referred to as a cathode case) 1 in which a cap and a gasket are integrated, and an opening end face of the cathode case 1 An anode case 2 to be fitted and sealed;
2. Description of the Related Art A coin-type battery having a configuration including an electromotive unit 3 which is provided in a liquid-tight enclosure formed of the cathode case 1 and the anode case 2 is known. In this configuration, the cathode case 1 and the anode case 2 are
Are electrically insulated by a gasket integrated with the gasket.

A battery having such a configuration is aligned and assembled by the following means. That is, the alignment is performed using a positioning and assembling apparatus as shown in FIG. In FIG. 3, reference numeral 4 denotes one electrode case (for example, a cathode case) 1
This is a positioning and assembling apparatus configured with a support base 4 provided with a stepped concave portion 4a on which is mounted as a main part.
Then, positioning and assembling of the coin-type battery by this device are performed first on the lower low wall portion of the stepped concave portion 4a.
The cathode case 1 in which the electromotive section 3 is previously housed and arranged is mounted and arranged. At this time, the cathode case 1 is mounted and arranged with the side on which the electromotive section 3 is installed and arranged facing upward. Thereafter, the opening end face of the anode case 2 is opposed to and aligned with the opening end face of the cathode case 1 placed on the support base 4, and the opening end face of the cathode case 1 is placed on the opening end face of the cathode case 1 via an insulator layer. Are engaged (fitted) and sealed. The support table 4
The upper side of the concave portion 4a provided in the above has a role of facilitating the engagement (fitting) operation of the opening end of the anode case 2.
In other words, it acts as a play portion (gap) to allow the degree of freedom in the operation of engaging (fitting) the anode case 2.

Here, the batteries to be aligned and assembled are not limited to the coin type (or button type), but may be cylindrical or prismatic.

[0005]

However, the means (method and apparatus) for positioning and assembling the battery is as follows.
There is a problem in stability or reliability, which is not satisfactory in mass production. That is, the concave portion 4a provided on the support base 4 for mounting one electrode case (for example, the cathode case) 1 is stepped, and the fixed portion when the cathode case 1 is mounted is small, so that it is stable. It is difficult to secure the fixation. Also, the step of the concave portion 4a corresponds to the anode case 2
Although there is an advantage that the opening end portion can be easily positioned and engaged (fitted), the lateral movement of the anode case 2 and the like can easily occur, and on the other hand, there is a problem that the positioning is complicated. .

These inconveniences can be solved to some extent by increasing the processing accuracy of the stepped concave portion 4a of the support base 4. However, the improvement in the processing accuracy of the stepped concave portion 4a leads to a significant increase in cost, which is a serious problem in this type of battery industry where low cost is required.

The present invention has been made in view of such circumstances, and a method of positioning and assembling a battery in which an electrode case can be stably positioned and easily and reliably engaged (fitted). And an apparatus suitable for carrying out the method.

[0008]

SUMMARY OF THE INVENTION According to the present invention, there is provided a method of positioning and assembling a battery according to the present invention, comprising the steps of: Placing the first electrode case with the opening end face upward, and mounting the first electrode case in the concave portion of the support base.
Mounting and assembling an electromotive portion in the mounted first electrode case, and causing the opening end surface of the second electrode case to face the opening end surface of the first electrode case in which the electromotive portion is mounted and incorporated; And positioning by a tapered guide of a tapered annular elastic body and engaging and sealing the open ends of both electrode cases via an insulating layer. Note that, in this method, the electromotive section may be mounted and incorporated in the first electrode case in advance. The battery positioning and assembling apparatus according to the present invention further comprises a support having a concave portion on which one electrode case is placed, and an inner peripheral surface mounted on the concave portion of the support having an upwardly tapered opening. And a locking member for suppressing upward displacement of the annular elastic body mounted on the support base.

In the present invention, the tapered annular elastic body is made of synthetic rubbers such as neoprene rubber or elastic plastics such as polyamide resin (nylon). The cross-sectional shape needs to have at least an inner peripheral surface tapered so as to open upward, and examples thereof include an inverted V shape, a triangle, and a trapezoid. The tapered annular elastic body is selected and set to have an inner diameter smaller than the outer diameter of the electrode case to be mounted.

[0010]

According to the present invention, one electrode case is stably fixed and positioned by utilizing the elasticity and deformability of the tapered annular elastic body. Further, the other electrode case easily and reliably engages (fits) with the fixed electrode case using the taper of the tapered annular elastic body as a guide. That is, the inner peripheral surface of the annular elastic body is tapered against the electrode case, which is stably positioned and fixed by the elasticity of the annular elastic body with taper, without being affected by the processing accuracy of the support or the jig. By the guide action, the corresponding electrode case is easily guided, and reliable engagement and sealing can be achieved, which greatly contributes to an improvement in the production yield of the battery.

[0011]

An embodiment of the present invention will be described below with reference to FIGS. 1 (a) and 1 (b).

FIG. 1 (a) is a sectional view showing an example of a main part configuration of an apparatus for positioning and assembling a battery according to the present invention, wherein 5 is a concave portion 5a on which one electrode case is placed. The supporting base provided with the supporting base 6 is an annular elastic body whose inner peripheral surface mounted on the peripheral surface of the concave portion 5a of the supporting base is tapered upwardly.
Reference numeral 7 denotes a locking member that suppresses upward displacement movement of the annular elastic body 6 mounted on the peripheral surface of the concave portion 5a of the support base 5.

In this configuration, the tapered annular elastic body 6 has an inverted V-shaped cross section made of, for example, rubber, and has an inner diameter slightly smaller than the outer diameter of the cathode case of the coin-type battery. The inner circumference taper is about 5 degrees. In other words, the tapered annular elastic body 6 easily and reliably engages (fits) without causing the lateral end of the opening end of the other electrode case corresponding to the electrode case to be pressed and supported on the outer peripheral surface. ) Is tapered to the extent that insertion is possible. Further, the locking member 7 for suppressing the upward displacement movement of the annular elastic body 6 is provided integrally with the support base 5, but may be provided detachably.

Next, the positioning and assembling of the battery using the above-described positioning and assembling apparatus will be described. First, a device is prepared in which the tapered annular elastic body 6 of the above device is mounted in the concave portion 5a of the support base 5 and the upward displacement movement is locked and mounted by the locking member 7. Next, a first electrode case (for example, a cathode case in which a cap and a gasket are integrated) 1 is inserted into a concave portion 5a of a support base 5 on which the tapered annular elastic body 6 opening upward is mounted. Is placed face up. By this operation,
The cathode case 1 is pressed almost uniformly from the outer peripheral surface and is easily and stably fixed and supported. Thereafter, the electromotive unit 3 is mounted and incorporated in the cathode case 1 placed on the support base 5.

After mounting and assembling the electromotive section 3, the opening end face of the second electrode case (eg, anode case) 2 is lowered to face the opening end face of the cathode case 1. In this process, the open end side of the anode case 2 is smoothly guided by the taper of the tapered annular elastic body 6,
It is easily and accurately aligned with the opening end of the cathode case 1. That is, the cathode case 1 is fixed and held by pressing the entire peripheral surface by the tapered annular elastic body 6, while the anode case 2 is introduced by the taper of the annular elastic body 6, so that the position of the cathode case 1 can be accurately determined. Will be combined. Therefore, the open ends of the electrode cases 1 and 2 are engaged and sealed with each other via the insulator layer, so that a highly reliable coin-type battery can be assembled and manufactured with high yield.

It should be noted that the present invention is not limited to the means described above, and various modifications can be made without departing from the spirit of the present invention. For example, the battery may be applied to a cylindrical type instead of a coin type.

[0017]

As can be seen from the above description, according to the means of the present invention, the corresponding cathode case and anode case can be positioned with high accuracy. That is,
Since the open ends of the cathode case and the anode case can be fitted and sealed with high precision, it can be said that this greatly contributes to the manufacture of a highly reliable battery or the assembly of a battery with a high yield. In addition, since the positioning and assembling means does not require a jig having high processing accuracy, it can be said that the cost advantage is great.

[Brief description of the drawings]

FIG. 1A is a cross-sectional view showing an example of a configuration of a main part of an apparatus for positioning and assembling a battery according to the present invention, and FIG. FIG.

FIG. 2 is a sectional view showing an example of the configuration of a main part of a coin-type battery.

FIG. 3 is a cross-sectional view schematically illustrating an example of an embodiment of a conventional battery alignment and assembling method.

[Explanation of symbols]

1. Cathode case 2. Anode case 3. Electric generator
4, 5 ... support base 4a ... stepped concave part 5a ... concave part
6: Tapered annular elastic body 7: Locking body

Claims (2)

(57) [Claims] 1. A first electrode case having an opening end face upward facing a concave portion of a support base on which a displaced upward movement is locked and a tapered annular elastic body whose inner peripheral surface is opened upward is mounted. Place and fix the peripheral surface by elastic pressing.
And that step, first a step engaging and incorporating the electromotive unit in the electrode case that is mounted on the support base, - mounting the electromotive unit
The opening end surface of the second electrode case is opposed to the opening end surface of the first electrode case incorporated, and is positioned by a tapered guide of a tapered annular elastic body, and the opening ends of both electrode cases are engaged via an insulating layer. And a method of positioning and assembling a battery. 2. A support base having a concave portion on which one electrode case is mounted, and an inner peripheral surface mounted on the support base is opened upward to elastically press the peripheral surface of the electrode case on which the electrode case is mounted. Characterized by comprising an annular elastic body having a taper and fixed thereto, and a locking body for suppressing upward displacement movement of the annular elastic body mounted on the support base. -Assembly equipment.