KR20170014733A - reserve battery for preventing oneself rotatory inside battery case - Google Patents

Abstract

According to the present invention, the first rotation preventing means is provided on each of the cell guides and the case surfaces of the case to support the cell guides to the case, so that when the rotation acceleration is generated in the cell guides due to the external shock and vibration, The first rotation preventing means includes a first insertion groove formed on the outer circumferential surface of the guide body of the cell guide inwardly, And the first rotation preventing protrusion protruded outwardly from the inner circumferential surface of the inner circumferential surface of the first guide groove and inserted into the first insertion groove. Thus, the cell guide can be prevented from self- A second rotation preventing means is provided on a bottom surface of the cell guide to be served and on a surface of the header which is in contact with the cell guide The second rotation preventing means firmly supports the lower portion of the cell guide to the header, so that the cell guide is doubly supported by the first rotation preventing means and the second rotation preventing means to prevent self-rotation of the cell guide more efficiently It became possible to do with non-accumulators.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a non-

The present invention relates to a cell that prevents self-rotation inside a case. More specifically, the present invention relates to a cell that is firmly supported on a case or a header even when rotation acceleration occurs from the outside, And more particularly to a non-accumulator capable of effectively preventing a short circuit of the battery due to self-rotation of the cell guide.

BACKGROUND ART [0002] Generally, a battery is a device for generating electricity by inducing an electrochemical reaction, and is widely used for various purposes due to its ease of portability as well as miniaturization.

In particular, the non-storage battery is configured to store the electrode part made of the positive electrode, the negative electrode, and the separator in an inactive state in which the electrode part is separated from the electrolyte solution, and the electrode part is activated by flowing the electrolyte solution into the electrode part by breaking the ampoule containing the electrolyte solution. The demand is increasing because of the advantage of lifetime and electrode performance.

1 is an exploded perspective view showing an ampule-type non-shrinkable battery disclosed in Korean Patent No. 10-1293523 (entitled "Ampule Type Non-shrinkable Battery"), which is a patent registered by the present applicant.

1 comprises a case 101, a header 102, a cell guide 103, an ampoule 104, a weight 105 and a support 106. The ampule-

The case 101 is formed in a cylindrical shape having a housing space in which a lower portion of the case 101 is widely opened and a housing space in which an upper portion is narrower and hermetically sealed than a lower portion.

The cell guide 103 is inserted into the case 101 to prevent internal impact, and the cell 130, which generates electricity by being activated by an electrochemical reaction, is stacked and mounted.

The cell guide 103 is provided in a cylindrical shape and includes a mounting portion 132 for mounting the cell 130 in an upwardly bent state while expanding a cylindrical lower end portion outwardly and an ampule 104 is installed inside the cell guide 103 .

That is, in the conventional non-rechargeable battery 100, the cell guide 103 is installed in the inner housing space of the cylindrical case 101 which is wide open at the bottom and tightly closed at the top, The cell 130 stacked on the mounting portion 132 is inserted in a mounted state.

When the insertion of the cell guide 103 into the accommodating space of the case 101 is completed, the ampule 104 filled with the electrolytic solution is inserted into the cell guide 103. At the upper part of the ampule 104, The electrode part is easily mounted by the cell guide 103 and the electrolytic solution of the cell 130 and the ampule 104 can be stored in a separated state.

However, in the conventional non-rechargeable battery 100, when the rotation acceleration occurs due to the installed equipment and the movement of the device, the cell guide 103 disposed inside the case 101 is rotated by itself, The lead wires connected to the electrodes are cut off and short-circuiting occurs.

Generally, non-accumulators are widely used as an energy supply source for military weapon system equipment. In such a weapon system equipment, the cell guide in the case and the case rotate more frequently due to the rotation of the bullet.

Fig. 2 is a perspective view showing a battery case disclosed in Korean Patent No. 10-1480952 (entitled "Anti-rotation Battery Case") Patent Registered by the Applicant of the Present Invention.

The battery case 200 (hereinafter referred to as a conventional art) of FIG. 2 includes a columnar case body 201 provided with a cell for generating electricity therein and having one side opened, And a rotation preventing portion 203 for preventing rotation.

When the case body 201 rotates at a predetermined angle when the case body 201 rotates, the rotation preventing portion 203 is inserted into the mounting groove of the mounting device 300 303 so that the case body 201 is supported by the rotation preventing portion 203 to prevent self rotation.

However, in the conventional art 200, the rotation of the case body 201 can be prevented while the rotation of the case body 201 is prevented. However, Is not described and a short circuit phenomenon due to self-rotation of the cell guide frequently occurs.

That is, it is urgent to study a battery which can prevent a short circuit of the electrode by preventing the self-rotation of the cell guide inside the case when the rotation acceleration occurs from the outside.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of manufacturing a cell guide, which comprises providing a cellar guide outer peripheral surface, When the rotation acceleration is generated in the cell guide due to the external impact and vibration, the cell guide is firmly supported by the case by the rotation preventing means, thereby preventing the cell guide from self-rotation and effectively preventing short- To provide a non-storage battery.

According to another aspect of the present invention, the first rotation preventing means includes a first insertion groove formed on an outer circumferential surface of a guide body of the cell guide, and a second insertion preventing groove formed on an inner circumferential surface of the case so as to protrude outward from an inner circumferential surface thereof, And the first rotation preventing protrusion, so that it is possible to remarkably prevent the self-rotation of the cell guide through a simple structure change of the case and the cell guide.

Further, another object of the present invention is to provide a non-accumulating battery capable of more firmly supporting the cell guide in the case by forming a plurality of the first insertion grooves and the first rotation preventing protrusions and having a predetermined length in the same arc shape, .

Further, according to another aspect of the present invention, a second rotation preventing means is provided on a bottom surface of a cell guide which is accommodated in a header and on a surface of a header that is provided in contact with the cell guide, And the cell guide is doubly supported by the first rotation preventing means and the second rotation preventing means as the cell guide is firmly supported on the header, so that the cell guide can be prevented from self-rotation more efficiently.

In addition, another object of the present invention is to provide a method of manufacturing a cell guide, in which the second rotation preventing means includes a second insertion groove formed on the bottom surface of the cell guide, Rotation protruding portion, thereby preventing the self-rotation of the cell guide drastically through simple structure change of the header and the cell guide.

In order to solve the above problems, the present invention provides a nonaqueous electrolyte secondary battery in which cells for generating electricity and an ampoule filled with an electrolytic solution are kept isolated from each other, A case having a lower opening; A header for sealing an opening of the case; A cell guide having a guide body having an upper portion and a lower portion opened and having the ampule therein, and a cell accommodating portion in which the cell is mounted on the outer side of the guide body; And rotation preventing means provided in each of the cell guide and the case to prevent rotation of the cell guide.

In addition, in the present invention, the rotation preventing means includes at least one first rotation preventing protrusion formed on an inner circumferential surface of the case, which is in contact with the outer circumferential surface of the cell guide, and protruding inward from the inner circumferential surface of the case. And at least one or more first insertion grooves formed on an outer circumferential surface of the cell guide to be in contact with an inner circumferential surface of the case and in which the first rotating device projection is inserted from an outer circumferential surface of the cell guide.

Also, in the present invention, it is preferable that a plurality of the first rotation preventing protrusions and the first insertion grooves are formed, and the first rotation preventing protrusions and the first insertion grooves are formed to have the same arc length and be spaced apart from each other.

In the present invention, the cell guide may include the guide body having the first insertion groove formed on an outer circumferential surface thereof; And a cell accommodating portion extending vertically outward from a lower end of the guide body, the cell accommodating portion including an extension portion formed with the insertion groove on a bottom surface facing the header, and a vertical portion bent upward from the end portion of the extension portion, And is formed in a space formed by the extension portion of the cell accommodating portion, the vertical portion, and the outer circumferential surface of the guide body.

In the present invention, the cell guide may further include a second insertion groove formed on a bottom surface of the extension of the cell guide, the first insertion groove being formed inward from the bottom surface of the cell guide, And a second rotation preventing protrusion protruding outward from the fitting surface and inserted into the second insertion groove may be formed on the mating surface.

Also, in the present invention, it is preferable that a plurality of the second rotation preventing protrusions and the second insertion grooves are formed, and the second rotation preventing protrusions and the second insertion grooves are formed in the same arc shape and are spaced apart from each other.

According to the present invention having a problem and a solution, the first rotation preventing means provided on each of the contact surfaces of the cell guide and the case to support the cell guide to the case, The first rotation preventing means prevents the self-rotation of the cell guide, thereby effectively preventing a short circuit due to the self-rotation of the cell guide.

According to the present invention, the first rotation preventing means includes a first insertion groove formed inwardly of the outer circumferential surface of the guide body of the cell guide, a first rotation protruding from the inner circumferential surface of the inner circumferential surface of the case and inserted into the first insertion groove, Preventing protrusion, it is possible to remarkably prevent the self-rotation of the cell guide through simple structure change of the case and the cell guide.

According to the present invention, since the first insertion groove and the first rotation preventing projection are formed in a plurality of the same circular arc shapes and have a predetermined length, the coupling force of the cell guide and the case is increased, Can be further reduced.

According to the present invention, since the second rotation preventing means is provided on the bottom surface of the cell guide which is provided in the header and on the surface of the header that is in contact with the cell guide, the second rotation preventing means firmly supports the lower portion of the cell guide to the header The cell guide is doubly supported by the first rotation preventing means and the second rotation preventing means, so that the self-rotation of the cell guide can be prevented more efficiently.

According to the present invention, the second rotation preventing means includes a second insertion groove formed on the bottom surface of the cell guide, a second rotation preventing protrusion formed on the fitting surface of the header and protruding outward from the fitting surface, It is possible to remarkably prevent the self-rotation of the cell guide through simple structure change of the header and the cell guide.

1 is an exploded perspective view showing an ampule-type non-shrinkable battery disclosed in Korean Patent No. 10-1293523 (entitled "Ampule Type Non-shrinkable Battery"), which is a patent registered by the present applicant.
Fig. 2 is a perspective view showing a battery case disclosed in Korean Patent No. 10-1480952 (entitled "Anti-rotation Battery Case") Patent Registered by the Applicant of the Present Invention.
3 is a side cross-sectional view illustrating a non-battery cell according to an embodiment of the present invention.
4 is an exploded perspective view of FIG.
5 is a side sectional view showing the case of Fig.
Fig. 6 is a perspective view showing the cell guide of Fig. 3;
7 is a side sectional view of Fig.
8 is a side cross-sectional view showing a non-battery cell according to a second embodiment of the present invention.
9 is a perspective view showing the second header of FIG.
10 is a perspective view showing the first cell guide of FIG.
11 is a side sectional view of Fig.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 3 is a side sectional view showing a non-battery according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view of FIG.

The non-accumulator 1 of Figs. 3 and 4 has a cylindrical case 2 with one open side, an ampule 3 provided at the inner center of the case 2 for storing the electrolyte therein, A weight 4 installed on the top of the ampule 3 for supporting the ampule 3 and increasing the impact acceleration and a support 5 for fixing and supporting the ampule 3 provided at the bottom of the ampule 3, A cell guide 6 installed to surround the ampule 3 on the outside of the ampule 3, a cell 70 laminated on the cell guide 6 and a header 8 mounted on the opening of the case 2 ).

In the present invention, for convenience of description, the non-accumulator 1 is constructed as shown in FIGS. 3 and 4. However, the configuration of the parts included in the non-accumulator 1 and the non- And shapes, and various known shapes and configurations including cell guides 6 can be applied.

5 is a side sectional view showing the case of Fig.

The case 2 is provided with a receiving space in which a cell 70, a cell guide 6, an ampule 3, a weight 4 and a support 5 are provided, do. At this time, a header 8 is provided at one opening of the case 2.

The case 2 further includes a first cylindrical portion 21 having a small diameter opened at one side thereof, a second cylindrical portion 23 having a large diameter connected to the first cylindrical portion 21 with open upper and lower portions, (25) connecting the first cylindrical portion (21) and the second cylindrical portion (23). At this time, a header (8) is provided in the opening of the second cylindrical portion (23).

That is, the lower portion adjacent to the opening portion of the case 2 is formed to be wider than the upper portion. Specifically, the lower portion of the case 2 adjacent to the opening portion is formed into a cylindrical shape having a diameter larger than that of the upper portion.

5, the case 2 includes an inner circumferential surface on which the guide body 61 of the cell guide 6 of FIG. 6 described later is accommodated, a first cylindrical portion 21 formed to have a small diameter in detail, The first rotation preventing protrusions 211 are formed at an interval from the inner peripheral surface to the inner side.

At this time, the first rotation preventing protrusions 211 are formed to have a predetermined length in the same arc shape and inserted into each of the first insertion grooves 611 of the cell guide 6 of FIGS. 6 and 7 to be described later, And supports the cell guide 6 when rotation acceleration occurs in the cell guide 6 due to vibration.

The header 8 is provided at its center with a bipolar pin 81 which is installed to be insulated by a sealing material 83 and the bipolar pin 81 is connected to the positive terminal of the cell 70 by a lead wire.

The non-accumulator 1 thus constructed is stored in an inactive state by being separated from the cell 70 by being stored in the ampule 3 before use, and when an impact acceleration above a threshold value is generated, the ampule 3 is broken, The cells are activated as they enter the cell 70.

The cell 70 is formed into a hollow disc shape having a thickness stacked with an anode, a separator and a cathode. At this time, the cell is formed by a positive electrode of a hollow disk as described in Korean Patent No. 20-1381842 (the invention is an electrode for a non-storage battery with an increased insulation function) and a negative electrode of a hollow disk, A negative electrode which is formed by a hollow disc and which is in contact with a surface of the compartment on which a vertical surface is not formed, and an inner circumferential surface of the negative electrode and an inner circumferential surface of the negative electrode, Insulators inserted into the outer circumferential surface, and a separator connected to the lower surface of the cathode. However, the configuration of the cell is not limited to this, and various shapes and configurations can be applied.

Fig. 6 is a perspective view showing the cell guide of Fig. 3, and Fig. 7 is a side sectional view of Fig. 6. Fig.

6 and 7, the cell guide 6 includes a guide body 61 formed into a cylindrical shape having upper and lower openings and provided with an ampule 3 and a weight 4 therein, a guide body 61 And a cell accommodating portion 63 that extends upward from the lower end portion of the cell accommodating portion 63 and is upwardly bent to mount the cell 70 therein.

The guide body 61 is formed into a cylindrical shape with upper and lower portions opened, and an ampule 3 and a weight 4 are provided inside.

In addition, the weight body 4 is installed inside the guide body 61 in order from the bottom to the top.

An upper outer circumferential surface of the guide body 61 is in contact with the inner circumferential surface of the first cylindrical portion 21 of the case 2. The upper end portion of the guide body 61 is in contact with the sealing surface of the case 2,

The guide body 61 is formed with inflow holes 613 for providing a movement path for introducing the electrolytic solution stored in the ampule 3 into the cell 70 when the ampule 3 is broken due to an external impact.

The guide body 61 is formed such that the first insertion grooves 611 are spaced apart from the outer circumferential surface in the outer circumferential surface that is in contact with the inner circumferential surface of the first cylindrical portion 21, As shown in FIG.

At this time, as each of the first rotation preventing protrusions 211 formed on the inner circumferential surface of the first cylindrical portion 21 of the case 2 of FIG. 5 described above is inserted into each first insertion groove 611, The side wall of the first insertion groove 611 is caught by the first rotation preventing projection 211 so that the cell guide 6 can be prevented from self-rotation, It is possible to effectively prevent a short-circuit phenomenon caused by the short circuit.

The cell accommodating portion 63 is composed of an extension portion 631 extending outwardly from the lower end portion at the lower end portion of the guide body 61 and a vertical portion 635 bent upward from the end portion of the extension portion 631, A space is formed between the outer surface of the guide body 635, the extension portion 631 and the outer circumferential surface of the guide body 61 so that the cell 70 is mounted in this space.

One side (hereinafter referred to as the bottom side) 632 of the extension 631 of the cell accommodating portion 63 is provided on one side (hereinafter referred to as a side surface) of the header 8.

9 is a perspective view showing the second header of FIG. 8, FIG. 10 is a perspective view showing the first cell guide of FIG. 8, and FIG. 11 is a perspective view of the first cell guide of FIG. 10 is a side sectional view of Fig.

The non-storage battery 400 of FIG. 8 is a second embodiment of the present invention and includes the case 2, the weight 4, the ampule 3, and the support 5 of FIG. 3 described above, The second header 401 of FIG. 10, and the second cell guide 403 of FIG.

The second header 401 of FIG. 9 is provided in the opening of the case 2, and the anode pin 411 and the cathode are insulated by the sealing material 413.

In addition, the header 401 is provided with second rotation preventing protrusions 415 protruding outward from the fitting surface 410 on the fitting surface 410, which is one surface facing the inside of the case 2, The protrusion 415 is inserted into each of the second insertion grooves 444 of the second cell guide 403 of FIG. 10 described later.

The second cell guide 403 shown in Figs. 10 and 11 has the same shape and configuration as those of the cell guide 6 shown in Fig. 6 described above. The second cell guide 403 has the same structure as that of the cell guide 6 shown in Fig. Second insertion grooves 444 are formed at intervals from the bottom surface 443 inwardly and the second insertion grooves 444 are formed to have a predetermined length on the same circle.

At this time, although the second rotation preventing protrusions 415 of the receiving surface 410 of the second header 401 shown in FIG. 9 are inserted into the respective second insertion grooves 444, The side wall of the second insertion guide groove 444 is caught by the second rotation preventing projection 415 so that the second cell guide 403 can be prevented from rotating self- It is possible to effectively prevent a short-circuit phenomenon caused by the short circuit.

The second cell guide 403 is mounted with the cell 70 in a space defined by the extended portion 442, the vertical portion 445, and the guide body 431.

The second cell guide 403 is inserted into the second insertion groove 444 of the bottom surface 433 of the extended portion 442 of the cell accommodating portion 441 in the second rotation The protrusion protrusion 415 is inserted and the first rotation preventing protrusion 211 of the case 2 is inserted into the first insertion groove 432 of the guide body 431 so that the bottom surface 444 and the guide body 431 Can be doubly supported so that self-rotation can be prevented more efficiently.

1: non-storage battery 2: case 3: ampoule
4: weight 5: support 6: cell guide
8: Header 21: First Cylinder 23: Second Cylinder
25: connecting portion 61: guide body 63: cell receiving portion
70: cell 631: extension part 635: vertical part

Claims (6)

1. A non-accumulator comprising a cell generating electricity and an ampoule filled with an electrolyte therein, the cell being activated by breaking the ampoule when an impact above a threshold value is generated,
A case having a bottom opened;
A header for sealing an opening of the case;
A cell guide having a guide body having an upper portion and a lower portion opened and having the ampule therein, and a cell accommodating portion in which the cell is mounted on the outer side of the guide body;
And rotation preventing means provided in each of the cell guide and the case to prevent rotation of the cell guide. The apparatus according to claim 1, wherein the rotation preventing means
At least one first rotation preventing protrusion formed on an inner circumferential surface of the case to be in contact with an outer circumferential surface of the cell guide and protruding inward from an inner circumferential surface of the case;
And at least one first insertion groove formed on an outer circumferential surface of the cell guide which is in contact with an inner circumferential surface of the case and in which the first rotating equipment projection is inserted from an outer circumferential surface of the cell guide. The non-storage battery of claim 2, wherein a plurality of the first rotation preventing protrusions and the first insertion grooves are formed, and the first rotation preventing protrusions and the first insertion grooves are formed in the same arc shape and are spaced apart from each other. [Claim 4] The method according to claim 3,
The guide body having the first insertion groove formed on an outer circumferential surface thereof;
And a cell accommodating portion extending vertically outwardly from a lower end of the guide body, the cell accommodating portion including an extension portion formed with the insertion groove on a bottom surface facing the header, and a vertical portion bent upward from an end portion of the extension portion,
Wherein the cell is formed in a hollow cylindrical shape and is formed in a space formed by the extension portion of the cell accommodating portion, the vertical portion, and the outer circumferential surface of the guide body. The cell guide according to claim 4, wherein the cell guide is formed on a bottom surface, which is one surface of the extended portion of the cell guide, which is accommodated in the header, inwardly from the bottom surface,
Wherein the header further includes a second rotation preventing protrusion protruded outward from the fitting surface to be inserted into the second insertion groove on a mating surface which is one surface facing the inside of the case. The non-accumulator battery according to claim 5, wherein a plurality of the second rotation preventing protrusions and the second insertion grooves are formed, and the second rotation preventing protrusions and the second insertion grooves are formed to have the same arc-shaped length and are spaced apart from each other.

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