KR101485898B1 - ampoule type reserve battery for enhancing activation efficiency - Google Patents

Abstract

The present invention relates to an ampoule type reserve battery for enhancing activation efficiency. A ballast includes a body, a weight concentration part installed in a mounting groove of the body. When being Looked on a flat surface, the weight is concentrated on a point adjacent to the outer circumference of the ballast, thereby reducing damage to an ampoule due to external impact, specifically, damage to a point adjacent to the center of the upper surface of an ampoule and greatly increasing shock resistance. The weight concentration part consists of a ring-shaped ring body and an insertion part vertically bent from the edge of the ring body. A support groove into which the insertion part is inserted is formed on the bottom surface of the mounting groove of the body of the ampoule, thereby allowing the ballast to be stably mounted on the weight concentration part and performing a desired function without being detached due to external impact. Shock resistance against vertical impact can be more improved by forming the ballast which has a body of 12-18 weight % and the weight concentration part of 82-88 weight %.

Description

[0001] The present invention relates to an ampoule type reserve battery for enhancing activation efficiency,

[0001] The present invention relates to an ampule-type non-accumulator having a high activation efficiency. More specifically, the present invention relates to an ampule-type non-accumulator which is installed at an upper portion of an ampule to concentrate a load, And more particularly, to an ampule-type non-accumulator battery which suppresses a breakage phenomenon and breaks the ampule only when an impact of at least a threshold value occurs.

The non-storage battery includes a positive electrode, a negative electrode, and a separator, separates and stores an electrolyte solution for activating an electrode part generating electricity, and when the user intends to use electricity, the battery is damaged by applying an impact of a threshold value or more, So that the electrode portion is activated.

In other words, the non-storage battery is a battery for solving the disadvantage of the primary battery in which the life span is shortened due to the natural discharge due to the activation of the electrode portion before use. Since the discharge is performed after the ampoule is broken, Demand is increasing.

The purpose of such a non-accumulator is to 1) ensure that the ampoule is broken when an impact above a threshold value occurs, and 2) the ampoule is not easily broken at impact below the threshold value.

Accordingly, the non-storage battery is subjected to the activation test test and drop test test after manufacturing, and the activation test test is a test for whether the ampoule is broken and the electrode portion is activated when the shock acceleration of 5000 G is applied to the non-storage battery. Is a test of whether the ampoule is not broken when it drops from a 1.5m high battery.

The present invention researched a non-storage battery including a protection case provided inside a case and provided with a glass-made partition wall at the bottom thereof, and a support portion pressed against the inside of the protection case to be pressed into the protection case, 10-1306275 (name of the invention: non-accumulating battery with improved impact resistance and durability), and the non-accumulating battery prevents the sidewall of the protection case from being deformed when an impact occurs from the side of the case, The breakage of the partition due to the external impact can be effectively prevented and the impact resistance and the durability can be improved.

However, since the non-accumulator is stored not in the ampoule but in a state of being separated from the electrode portion by the partition wall made of a thin plate made of glass, the non-accumulator is disadvantageous in that the ampoule is easily damaged in the up- , Thereby shortening the lifetime of the battery.

1 is a side sectional view showing a non-accumulator disclosed in Korean Patent No. 10-1293523 filed by the present inventor and registered as a patent (entitled "Amplifier type non-accumulator"), FIG. 2 is a cross- Fig.

(Hereinafter referred to as "prior art") 100 of FIG. 1 includes a case 101 in which a header 102 is installed at a lower opening, a cell guide An ampule 105 installed on the inner side of the cell guide 103 and containing an electrolytic solution therein and an ampule 105 installed on the upper side of the ampule 105 to prevent the flow of the ampule 105, And a cushion portion 108 provided on the support body 109. The cushion portion 108 is provided on the support body 109. The cushion portion 108 is provided on the support body 109. [

As described above, according to the conventional art 100, when the shock is applied to the case, the shock absorbing portion 108 of the support body 109 absorbs and mitigates the impact, thereby preventing the flow of the ampoule and the support body from being easily broken.

In the prior art 100, a weight 107 is provided at an upper portion of the ampule 105, so that the flow of the ampule 105 is prevented by the weight 107, The weight of the impact acceleration is increased, so that the ampule 105 is easily triggered.

Generally, as shown in FIG. 2, in the ampule 105, the side wall 151 installed in the vertical direction is concentrated in the vertical direction so as to be strong against the impact in the vertical direction, while the load is distributed in the horizontal direction The case side wall). As a result, the top surface 153 of the ampule 105 has a characteristic that the supporting force transmitted from the side wall 151 decreases toward the center from the point adjacent to the side wall 151, so that the upper surface 153 is vulnerable to impact in the vertical direction.

That is, since the prior art 100 does not take into consideration the characteristics of lowering the impact resistance as the upper surface 153 of the ampule 105 approaches the center from the side adjacent to the side wall 151, even if an impact less than the threshold value occurs, , The upper surface 153 adjacent to the center of the upper surface 153 is damaged by the weight 07 and the electrode unit is activated.

That is, the prior art 100 includes a weight 107 for increasing the impact acceleration when a vertical impact is generated. When the force exceeds a threshold value, the ampule 105 can be easily broken. However, It is difficult to expect a desired electrode efficiency since activation is performed only by an impact exceeding a precise limit value without taking into consideration the characteristic that the top surface 153 which is provided on the side wall 151 is low in impact resistance according to the distance from the side wall 151.

In view of the fact that the impact weight is lowered as the upper surface 153 of the weight weights 107 is moved toward the center as well as the weight weights 107 for increasing the impact acceleration and preventing the flow of the ampule 105 There is an urgent need to study a non-accumulator for reducing the damage of the upper part of the upper surface of the ampule 153 due to an impact less than the limit value.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an apparatus and a method for mounting a case, which is formed in a columnar shape with a hollow body and has a mounting groove formed along the outer periphery And the load concentrated portion formed in the mounting groove of the body is formed in a ring shape of brass material so that the impact is concentrated to the edge point of the ampoule rather than the central portion of the upper surface in the same vertical direction impact, And more particularly, to provide an ample type non-accumulator which can increase breakdown of a point adjacent to the center of the upper surface of the ampule, thereby greatly increasing the impact resistance.

In addition, another problem to be solved by the present invention is that the load-concentrating portion comprises a ring-shaped annular body and an insert portion which is vertically bent from the edge of the annular main body, and a support groove into which the insert portion is inserted is formed on the bottom surface of the mount groove of the ampule body And to provide an ample type non-accumulator which has an increased efficiency of activation so as to perform an original function of allowing a load concentration portion to be firmly seated on a weight and not being separated by an external impact and performing a desired function.

Another object of the present invention is to provide a method for manufacturing a battery pack, which comprises 12 to 18% by weight of a weight-added body and 82 to 88% by weight of a load-concentrated portion, Type non-storage battery.

According to an aspect of the present invention, there is provided an apparatus for storing electricity, comprising a cell for generating electricity and an ampoule filled with an electrolytic solution in an insulated state, wherein the ampoule moves to a percussion part when an impact occurs, Wherein the cell is activated by breaking the ampoule, the case being opened with a lower portion and the cell and the ampoule being installed therein; A header including a positive electrode pin and a negative electrode terminal and sealing the lower opening of the case; A weight body formed in a columnar shape and having an outer surface on an inner side surface of the case and a lower surface on an upper surface of the ampule and a load concentration portion provided on an edge region of the upper surface of the body, The portion is formed of a material having a specific gravity higher than that of the body.

In the present invention, it is preferable that the body of the weight is formed with a seating groove inwardly along a rim on the upper surface thereof, and the load concentration portion is formed in an annular shape to be installed in the seating groove.

In the present invention, the body of the weights may have a seating groove formed on the upper surface of the body along a rim, and a bottom surface of the seating groove of the body may include a support groove formed inward from the bottom surface, The load concentrating portion may include a ring body formed in a rod shape and having both ends connected in a circular shape and an insertion portion bent downward from a mating surface that is provided on the bottom surface and inserted into the support groove.

Also, in the present invention, it is preferable that the weight of the weight is 82 to 88 weight% and the body is 12 to 18 weight% based on the total weight.

Also, in the present invention, it is preferable that the body is made of polyoxymethylene (POM) and the load concentrating part is made of brass.

The ampule-type non-accumulator according to the present invention may further comprise a body having a lower portion to be held in the header, a rattle portion to be protruded upward from the body, edges to support the lower portion of the ampule, Further comprising: a support including a detent portion and support fingers connecting the edges and separating from the edges when an impact above a threshold occurs, wherein the support of the edge is released when the impact occurs, It is desirable to be defeated.

In the present invention, the ampule may be formed as a slope whose upper surface is connected to the body of the weight and upward from the rim toward the center of the weight, the body of the weight is formed into a cylindrical shape having a hollow, And the upper surface of the ampule is formed as an inclined surface facing inward toward the hollow from the rim.

According to the present invention having the above-mentioned solution, the load is concentrated at the point adjacent to the outer periphery of the weight when viewed from the top, including the weight-added body and the load concentration portion provided in the seating groove of the body, In particular, it is possible to reduce the breakage of the point adjacent to the center of the upper surface of the ampule, thereby greatly improving the impact resistance.

According to the present invention, the load-concentrating portion comprises a ring-shaped annular body and an insert portion which is vertically bent from the edge of the annular main body, and a support groove into which the insert portion is inserted is formed on the bottom surface of the mount groove of the ampule body, The additional part can be firmly seated on the weight and can perform a desired function without being detached by an external impact.

According to the present invention, 12 to 18% by weight of the weight-added body and 82 to 88% by weight of the load-concentrated portion can increase the impact resistance against impact in the vertical direction more efficiently.

1 is a side sectional view showing a non-accumulator disclosed in Korean Patent No. 10-1293523 filed by the present inventor and registered as a patent (entitled "ampule-type non-accumulator").
2 is an exemplary diagram for explaining the problem of FIG.
3 is an exploded perspective view illustrating a non-storage battery according to an embodiment of the present invention.
Fig. 4 is a side sectional view of Fig. 3; Fig.
5 is a perspective view showing the case of Fig.
Fig. 6 is a perspective view showing the cell guide of Fig. 3;
7 is an exploded perspective view showing the body of the weight weight shown in Fig.
FIG. 8 is a side sectional view of FIG. 7, and FIG. 9 is a perspective view showing a load concentration portion of the weight of FIG.
10 is an actual photograph showing the weight of the present invention.
11 is a perspective view showing a second embodiment of the load concentration portion of the present invention.
12 is a side view showing a second embodiment of the weight according to the present invention.

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

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

The non-accumulator 1 shown in Figs. 3 and 4 has a cylindrical case 3 whose lower portion is wider than the upper portion, a header 2 provided at the lower opening of the case 3, A cell guide 5 including an outer cylindrical portion 51 and a mounting portion 53 extending outward from a lower end of the cylindrical portion 51 and having an outer periphery bent upward and a cell 4 to be described later is burnt, A cell 4 which is electrochemically reacted to generate electricity and which is seated in a mounting portion 53 of the cell guide 5 and an ampule 50 which accommodates the electrolytic solution inside the cylindrical portion 51 of the cell guide 5, A support 7 installed at the lower part of the ampule 6 to support the ampule 6 and a support 7 installed at the upper part of the ampule 6 to prevent the flow of the ampule 6, A weight 8 for increasing the impact acceleration at the time of impact and a visor 10 provided at the support 7 and an insulating plate 11 provided between the support 7 and the header 2 Achieved.

5 is a perspective view showing the case of Fig.

The case 3 of FIG. 5 is formed in a cylindrical shape having a lower opening than that of the upper case. Specifically, the case 3 includes a cylindrical first case 31 having a lower opening, And a connecting surface 35 connecting the first case 31 and the second case 33 to each other.

At this time, the inner spaces of the first case 31 and the second case 33 are mutually spanned, and the cylindrical portion 51 of the cell guide 5 is inserted into the inner space.

A header 2 is provided in the lower opening of the second case 3 so that the inside of the case 3 is sealed by the header 2.

The header 2 includes a cathode terminal 21 and a cathode terminal which are insulated by a glass-to-metal seal (GTMS) which is a sealing material. At this time, the positive electrode pin 21 and the negative electrode terminal of the header 2 are commonly used in non-storage batteries, and thus a detailed description thereof will be omitted.

The cells 4 are stacked in a multi-stage manner in the form of a plate having an anode, an anode (cathode) and separators in the form of a hollow plate. The cylindrical portion 51 of the cell guide 5 passes through the cell guide 5, 5 mounted on the mounting portion 53. [

In addition, when the electrolyte flows into the cell 4, the cell 4 is activated by electrochemical reaction to generate electricity.

Fig. 6 is a perspective view showing the cell guide of Fig. 3;

The cell guide 5 shown in Fig. 6 has a cylindrical cylindrical portion 51 having an opening at its upper and lower ends, a first plate 531 vertically bent from the lower end of the cylindrical portion 51, And a mounting portion 53 on which the cell 4 is mounted with a space formed by the first plate 531 and the second plate 533 including the second plate 533.

The cylindrical portion 51 is provided with an elastic portion 9, a weight 8, an ampule 6, and a support 7 therein.

The ampule 6 is formed of an inclined surface 61 in which an electrolytic solution is received in an inner space and is upwardly directed toward the center of the upper surface.

The lower surface of the ampule 6 is in contact with the supporter 7 and the side surface of the ampule 6 is in contact with the inner surface of the cylindrical portion 51 of the cell guide 5 and the upper surface thereof is accommodated in the weight 8.

The support 7 is provided at the lower portion of the ampule 6 and is provided with an ampule 6 to support the ampule 6 and support the ampule 6 while absorbing and mitigating the impact of the ampule 6 in detail, (6).

The support 7 includes a support body 71 having a lower portion which is in contact with the insulating plate 11, a protruding portion 73 protruding upward in the center of the upper surface of the support body 71, And an edge 75 on which a recess 751 is formed in a receiving surface which supports the ampule 6 and which is supported by the ampule 6. The buffer 75 is provided with a buffering portion 10. At this time, the edge 75 and the protrusion 73 are connected by at least one support piece so that the edge 75 is cut from the support body 71 by the load applied by the ampule 6.

The cushioning part 10 is either rubber or silicone material, and absorbs and mitigates the internal impact of the ampule 6 to protect the ampule 6.

When the impact is generated, the ampule 6 is subjected to impact acceleration by the weight 8, so that the support 7 supporting the ampule 6 The ampoule 6 is broken and the ampoule 6 collides against the protruding portion 73 of the supporter 7 at a high speed so that the electrolytic solution flows into the cell 4 as the ampoule 6 is broken, ) Is activated and electricity is generated.

Fig. 7 is an exploded perspective view of the weight body of Fig. 3, Fig. 8 is a side sectional view of Fig. 7, Fig. 9 is a perspective view showing a load concentration portion of the weight of Fig. . ≪ / RTI >

The body 81 of the weights 8 of Figs. 7 and 8 is provided inside the cylindrical portion 51 of the cell guide 5 and on the upper portion of the ampule 6 to prevent the flow of the ampule 6 At the same time, the impact acceleration is increased.

The body 81 of the weight 8 is formed in a cylindrical shape having a hollow 813 and is formed with a seating groove 820 which is connected to the rim of the upper surface along the outer periphery inward. At this time, the mounting groove 820 of the body 81 is formed with a load concentration portion 83 of FIG. 9 to be described later.

The body 81 is formed in a cylindrical shape having a hollow 813 and the upper surface thereof is placed on the inner surface of the case 3 and the lower surface thereof is placed on the ampule 6.

The body 81 is formed of an inclined surface 815 which is upwardly directed toward the ampule 6 from the rim toward the hollow 83 so that the lower surface of the body 81 faces the inclined surface 61 of the ampule 6 So that the flow of the ampule 6 can be firmly supported.

In addition, the body 81 is formed with a seating groove 820 which is formed on the rim of the upper surface 811, which is opposite to the one surface, from the upper surface to the inner side and is connected along the side surface.

The seating groove 820 includes a vertical surface 823 vertically bent downward from the upper surface of the body 81 and a bottom surface 821 having one end connected to the vertical surface 823 and the other end connected to the side surface of the body 81 .

Also, the body 81 is made of a synthetic resin material having a lower specific gravity than the load concentration portion 83, and is preferably polyoxymethylene (POM).

The body 81 has a specific gravity higher than that of the body 81 by being formed in a range of 12 to 18% by weight based on the total weight of the body 81. When the impact is generated in the vertical direction by the load concentration portion 83 installed in the seating groove 820, (6), the impact is concentrated on the edge region which is more impact resistant than the central portion which is vulnerable to the impact, so that it has a strong impact resistance against the impact less than the limit. At this time, when the body 81 is less than 12 wt% of the total weight, the load is excessively concentrated to the area adjacent to the upper edge of the ampule 6 at the time of impact, so that the area adjacent to the upper edge of the ampule 6 is damaged On the other hand, when the impact is more than 18% by weight based on the total weight of the ampule 6, the load is concentrated to a point near the center of the upper surface of the ampule 6, which is vulnerable to impact.

The load concentrating portion 83 is formed in an annular shape as shown in Fig. 9 and has an outer diameter equal to that of the body 81 and an inner diameter equal to the diameter forming the vertical surface 823 of the seating groove 820 And is installed in the seating groove 820. [

The weight concentrated portion 83 is formed of a metal material having a specific gravity higher than that of the body 81 and is made of brass in detail and is preferably formed to 82 to 88 weight% Do. At this time, when the load concentration portion 83 is less than 82 weight% of the total weight, the load is concentrated to a point near the center which is vulnerable to impact among the upper surfaces of the ampule 6, %, The load is excessively concentrated in the area adjacent to the upper edge of the ampule 6 in the event of an impact, so that the area adjacent to the upper edge of the ampule 6 is damaged even in a small impact.

That is, the load concentrating portion 83 is installed in the seating groove 820 of the body 81 so that when the weight 8 is viewed in a plan view, the load is concentrated at a point adjacent to the outer diameter, The impact is applied to the upper surface of the ampule 6 by increasing the acceleration of the impact but weakly transmitted to the central portion weak to the impact among the upper surfaces of the ampule 6, .

FIG. 11 is a perspective view showing a second embodiment of the load concentration portion of the present invention, and FIG. 12 is a side view showing a second embodiment of the weight according to the present invention.

11, the second embodiment of the load concentrating unit 300 includes an annular annular main body 301 formed in a rod shape and having both ends connected in a circular shape, And an inserting portion 303 for inserting the inserting portion. The ring body 301 has an outer diameter equal to the outer diameter of the weight body 400 of FIG. 12 described later and is formed to have the same inner diameter as the diameter of the seating groove 401 of the body 400.

The insertion portion 303 is bent downward from the lower surface of the ring body 301 and has a predetermined area and is inserted into the support groove 412 of the body 400 of FIG. Is not detached from the seating groove 401 of the body 400 so that it can perform its original function.

12, the second embodiment of the body 400 of the weight 8 has the same shape as the body 81 of the weight 8 of FIG. 5, A support groove 412 formed inward from the bottom surface 411 is formed on the bottom surface 411 and the support groove 412 is connected along an arc.

10 is inserted into the support groove 412 so that the load concentrating portion 300 can be moved from the seating groove 401 of the body 400 to the support groove 412 even if external vibration is generated by inserting the insertion portion 303 of the load concentrating portion 83, So that it can be firmly supported without detaching.

Hereinafter, the non-storage battery according to one embodiment of the present invention will be described in more detail with reference to experimental examples and comparative examples. The following embodiments are for illustrative purposes only and do not limit the scope of protection of the present invention.

Table 1 is a table showing Examples 1 to 3 of the present invention.

Configuration Example 1 Example 2 Example 3 Load-
(83) Outer diameter ○ ○ ○ Inner diameter weight% 82 88 85 Body (81) Weight% 18 12 15

The load concentration portions 83 of Examples 1 to 3 in Table 1 are made of brass material and the body 81 is made of POM material.

The bodies 81 of Examples 1 to 3 were formed to have an outer diameter of 17.0 mm and a height of 3.5 mm dml. The load concentration portion 83 was formed to have an outer diameter of 17.0 mm, an inner diameter of 15.0 mm, and a height of 1.5 mm.

[Example 1]

A weight of 18% by weight of the body and a weight of 82% by weight of the weight of the load concentrated on the outer diameter of the body.

[Example 2]

A weight of 12% by weight of the body, and a weight of 88% by weight of the load concentration portion which is seated on the outer diameter of the body.

[Example 3]

A weight of 15% by weight of the body and 85% by weight of the weight of the load concentrated on the outer diameter of the body.

[Experimental Example 1]

- drop test

It was measured whether the ampoule was not destroyed when dropped at a height of 1.5 m. At this time, the voltage of the non-battery maintains' 0'V (inactivated state).

[Experimental Example 2]

- activation test

It was measured whether the ampoule was destroyed when a shock of 5,000G was applied to the non-storage battery. At this time, the activation of the non-storage battery was judged to be activated when the voltage exceeding 30 V was measured and the ampoule was destroyed.

Table 2 shows measured values of the drop test and the activation test of Examples 1 to 3 for Experimental Examples 1 and 2.

division Experimental Example 1
(Drop test result) Experimental Example 2
(Activation test) Meets criteria
(No ampoule) Unmet criteria
(Ampoule breakdown) Meets criteria
(No ampoule) Unmet criteria
(Ampoule breakdown) Example 1 ○ ○ Example 2 ○ ○ Example 3 ○ ○

Referring to Table 1, Examples 1 to 3 are formed of 12 weight%, 18 weight% and 15 weight% of brass concentrated load parts, and when they fall at a height of 1.5 m, It can be seen that the ampoule is not broken and when the impact of 5000 G occurs, the ampoule is broken and the electrode portion is activated.

Table 3 shows Comparative Examples 1 to 10 of the present invention.

Configuration Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Load-
(83) Outer diameter ○ ○ ○ ○ ○ Inner diameter ○ ○ ○ weight% 82 88 100 70 95 90 80 Body (81) Weight% 18 12 0 30 5 10 20

In Comparative Examples 1 to 7 of Table 3, the load concentrating portion 83 was formed of brass material and the body 81 was formed of POM material in the same manner as Examples 1 to 3.

In Comparative Examples 1 to 7, the body 81 was formed to have an outer diameter of 17.0 mm and a height of 3.5 mm dml, and the load concentration portion 83 was formed to have an outer diameter of 17.0 mm, an inner diameter of 15.0 mm, and a height of 1.5 mm.

[Comparative Example 1]

A weight of 18% by weight of the body, and a weight of 82% by weight of the weight of the load concentrated on the inner diameter of the body.

[Comparative Example 2]

A non-accumulator comprising a weight of 12% by weight of the body and a weight of 88% by weight of the weight of the load concentrated on the inner diameter of the body.

[Comparative Example 3]

The body and the load-weighted portion include a weight made of a brass material.

[Comparative Example 4]

A weight of 30% by weight of the body and a weight of 70% by weight of the weight of the load concentrated on the outer diameter of the body.

[Comparative Example 5]

A weight of 5% by weight of the body and 95% by weight of the weight of the load concentrated on the outer diameter of the body.

[Comparative Example 6]

A weight of 10% by weight of the body and 90% by weight of the weight of the load concentrated on the outer diameter of the body.

[Comparative Example 7]

A weight accumulator comprising 20 weight% of a body and 80 weight% of a load concentration portion seated on an outer diameter of the body.

Table 4 shows measured values of the drop test and the activation test of Comparative Examples 1 to 7 for Experimental Examples 1 and 2.

division Experimental Example 1
(Drop test result) Experimental Example 2
(Activation test) Meets criteria
(No ampoule) Unmet criteria
(Ampoule breakdown) Meets criteria
(Ampoule breakdown) Unmet criteria
(No ampoule) Comparative Example 1 ○ ○ Comparative Example 2 ○ ○ Comparative Example 3 ○ ○ Comparative Example 4 ○ ○ Comparative Example 5 ○ ○ Comparative Example 6 ○ ○ Comparative Example 7 ○ ○

Comparing Examples 1 and 2 with reference to Table 4, Comparative Examples 1 and 2 show that the load concentration portion 83 is provided at a central portion adjacent to the inner diameter of the body 81, and the central portion of the upper surface of the ampule, , The ampoule is broken even in a small impact, so that the ampoule is broken in both the drop test and the activation test result.

In the comparative example 3, since the body 81 and the load concentration part 83 are all formed of brass material, a considerable impact is applied to the central part of the upper surface of the ampule which is vulnerable to the impact when an impact is generated, and the ampule is broken as a result of the drop test .

In Comparative Examples 4 and 7, the load concentration portion 83 is provided at the outer diameter of the body 81, and 70% by weight and 80% by weight, respectively, so that the impact is transmitted to the central point of the upper surface of the ampule, It can be seen that the ampoule is broken and fails to meet the drop test criteria.

In Comparative Examples 5 and 6, since the load concentration portion 83 is formed at 95% by weight and 90% by weight, respectively, at the outer diameter of the body, excessive impact is concentrated on the edge region of the upper surface of the ampule when the impact occurs, And it does not satisfy the criteria of the drop test.

1: Non-storage battery 2: Header 3: Case
4: cell 5: cell guide 6: ampule
7: support 8: weight 10:
11: insulating plate 21: positive electrode pin 31: first case
33: second case 35: connecting surface 51: cylindrical portion
53: mounting portion 81: seat groove 81: body
83:

Claims (7)

An ampule-type non-aqueous electrolyte secondary battery in which the cell generating electricity and the ampule having the electrolyte filled therein are kept isolated from each other, and when the impact is generated, the ampule moves to the percussion part and the ampule is broken by the percussion part, For a battery:
A case having a bottom opened and having the cell and the ampule installed therein;
A header including a positive electrode pin and a negative electrode terminal and sealing the lower opening of the case;
The weight being formed in a columnar shape and having an outer surface on an inner side surface of the case and a lower surface on an upper surface of the ampule and a load concentration portion provided on an edge region of the upper surface of the body,
Wherein the load concentration portion is formed of a material having a specific gravity higher than that of the body. [2] The apparatus of claim 1, wherein the body of the weight is formed with a seating groove inwardly along a rim on the upper surface,
Wherein the load concentration portion is formed in an annular shape and is installed in the seating groove. [2] The apparatus of claim 1, wherein the body of the weight is formed with a seating groove inwardly along a rim on the upper surface,
A support groove is formed on a bottom surface of the seating groove of the body so as to be connected to the bottom of the seating groove along an arc,
Wherein the load concentrating portion includes a ring body formed in a bar shape and having both ends connected in a circular shape and an insertion portion bent downwardly from a receiving surface which is provided on the bottom surface and inserted into the supporting groove, . The ampule-type non-accumulator battery according to claim 2 or 3, wherein the weight of the weight unit is 82 to 88 weight% and the body weight is 12 to 18 weight%. [Claim 4] The ampule-type non-storage battery of claim 4, wherein the body is made of polyoxymethylene (POM) and the load concentrating part is made of brass. In claim 5, the ampule-type non-
And an upper portion which is located upwardly of the ratchet portion and supports a lower portion of the ampule, and an upper portion that connects the ratchet portion and the edges, Further comprising a support comprising support pieces separated from the edges when an impact occurs,
Wherein the ampoule is released from support of the edge when an impact occurs, and collides with the rattle portion to be broken. The ampule according to claim 6, wherein the ampule is formed as an inclined surface whose upper surface, which is in contact with the body of the weight, is upward from the rim toward the center,
Wherein the body of the weight is formed in a cylindrical shape having a hollow shape and is formed as an inclined surface facing inward toward the hollow from the rim toward the inside of the ampule and is in contact with the upper surface of the ampule. Battery.

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