JP2013025884A - Battery package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery package that is hardly affected by dispersion in battery dimension of cylindrical batteries.SOLUTION: In a battery package, a first press-down part 29 for pressing the face portion of a positive terminal 21 forming a positive pole of a cylindrical battery is formed on an end wall 3b confronting the end portion at the positive pole side of a cylindrical battery 20, 20H out of a battery mount portion 3, and a second press-down part for pressing the end face portion 22 of a negative pole of the cylindrical battery is formed on an end wall 3b confronting the end portion at the negative pole side of the cylindrical battery out of the battery mount portion to pinch the cylindrical battery in cooperation with the first press-down part. The cylindrical battery is held at a portion where the effect of allowance dispersion is little. Therefore, even cylindrical batteries which are greatly dispersed in size within allowance can be held by a common holding structure and further with proper holding force.

Description

  The present invention relates to a battery package used when selling a cylindrical battery.

In order to sell cylindrical batteries, a method of displaying and displaying cylindrical batteries by packaging them is used. Many of these battery packages use blister packs.
A blister pack is a structure that combines a transparent cover member made of synthetic resin and a mount (corresponding to a lid). Generally, the cover member has a shape that conforms to the outer shape of a cylindrical battery. A structure is used in which a cylindrical battery is accommodated in the battery housing portion and the opening of the battery housing portion is sealed with a mount.

  By the way, in selling cylindrical batteries, it is important to show customers the printed contents such as labels printed on the outer surface of the batteries. Therefore, in a battery blister pack, the packaged cylindrical battery is held in a predetermined position and in a predetermined direction so that the direction of the print content is unified, and the print content is clearly seen through the battery storage unit. Yes.

  In order to hold such a cylindrical battery, as disclosed in Patent Document 1, a battery main body of the cylindrical battery is configured on each end wall portion of the battery storage portion facing both ends of the cylindrical battery. A structure is used in which a holding part that elastically contacts the outer peripheral corners on both ends of the exterior part is formed to hold the cylindrical battery in a predetermined posture.

JP 2004-103472 A

  By the way, although the dimensions of each part of the cylindrical battery are defined by the standard (JIS standard), even for batteries of the same standard such as AA, the design dimensions are set at the upper and lower limits within the tolerance of the standard. From the value, the size (capacity) of the battery main body in which the battery material is accommodated is slightly changed. That is, a plurality of types such as for high capacity and for high output are formed by utilizing variation within the dimensional tolerance of the battery body.

  Specifically, even for the same AA battery, the cylindrical battery body containing the battery material is, for example, a standard-sized end of the battery body around the plus terminal called the shoulder around the plus terminal, which is referred to as the diameter dimension and the shoulder around the plus terminal. There are a plurality of types in which the size of the battery main body is different, such as the one having a long dimension up to the portion, and the size of the battery main body varies considerably even within the same standard.

  However, the blister pack (battery package) in which the holding part is formed on the side wall of the battery housing part as in Patent Document 1 is manufactured in accordance with the standard of a predetermined cylindrical battery, that is, the battery size variation, that is, It cannot cope with the difference in the external shape of the battery body.

  That is, since the blister pack is manufactured according to one type within the standard of the cylindrical battery, the battery containing portion of the same blister pack has a small type of battery, more specifically, the diameter of the battery body is small. When a cylindrical battery is stored, the cylindrical battery is loosely held, and the cylindrical battery is rotationally displaced in the circumferential direction. End up. On the other hand, when a battery of a type having a large battery body, specifically, a battery having a large diameter and a long length is accommodated in the battery storage section of the same blister pack, the cylindrical battery is held. There is a possibility that the holding force becomes excessive and the printing surface of the cylindrical battery is damaged.

  In other words, since Cited Document 1 has a structure in which a portion where the dimensional tolerance of a cylindrical battery is increased is pressed by a holding portion, a cylindrical battery having a type of battery body size (battery size) is different for each type of battery. The amount of deformation of the holding portion varies, and it is difficult to ensure an appropriate holding force for the cylindrical battery.

As a countermeasure, it is conceivable to use a plurality of blister packs according to the outer shape of the cylindrical battery having different design dimensions within the tolerance.
Although this can certainly hold multiple types of cylindrical batteries of the same standard, each time the battery body size varies, a dedicated blister pack must be made, which is a considerable cost burden. Will be forced.

  Therefore, an object of the present invention is to provide a battery package that is not easily affected by variations in battery dimensions of cylindrical batteries.

  In order to achieve the above object, the present invention provides a positive terminal for forming a positive electrode of a cylindrical battery on an end wall facing a positive electrode side end of the cylindrical battery in the battery housing portion. A first pressing portion for pressing the end surface portion of the cylindrical battery, and pressing the end surface portion of the negative electrode of the cylindrical battery on the end wall facing the negative electrode side end portion of the cylindrical battery in the battery housing portion, In cooperation with the first pressing portion, a second pressing portion for sandwiching the cylindrical battery was formed.

  Here, as long as the cylindrical battery is within the same standard, the length distance from the end face of the positive electrode to the end face of the opposite negative electrode is almost unchanged, and the difference in design dimensions within the tolerance is high. Even if it is classified into capacity and high output, the size of the battery body containing the battery material is only different.

  Therefore, according to the above configuration, the first and second pressing portions allow the cylindrical battery to have a small battery tolerance section, that is, from the end surface portion of the plus terminal having almost no change in size to the end surface portion of the negative electrode on the opposite side. It is held using the interval between. This is because the cylindrical battery is held in a portion where the influence of tolerance variation is small, so even a cylindrical battery whose size greatly varies within the tolerance can ensure a proper holding force with a common holding structure, Good cylindrical battery retention is achieved.

In the invention of claim 2, the second pressing portion presses the outermost peripheral portion of the end face of the negative electrode of the cylindrical battery so that the cylindrical battery can be prevented from rotating with a minimum force.
In the invention of claim 3, the second pressing portion presses the corner portions on both sides in the diameter direction across the end face of the negative electrode of the cylindrical battery so that the cylindrical battery is effectively held, The cylindrical battery can be prevented from rotating with the minimum force, and the cylindrical battery can rotate or drop out even if the battery dimensions differ due to the tightening provided by the three-point support in cooperation with the first pressing part. It was made to hold without.

  According to the invention of claim 4, each end wall of the battery housing portion is provided at an end wall portion on both sides sandwiching the center of the end surface of the cylindrical battery so as to be able to cope with any orientation of the cylindrical battery. A pair of inclined walls that incline in the direction toward the center of the end face of the cylindrical battery as the part moves away from the cylindrical battery and form a contact surface that can contact the outermost peripheral end of the negative end face of the cylindrical battery And a contact surface that is provided between the contact surface and a pair of inclined wall portions with a predetermined step, and that can contact only the end surface of the positive terminal on the positive side of the cylindrical battery. The terminal pressing wall constitutes the first pressing portion, the pair of inclined walls constitutes the second pressing portion, and the end walls on both ends of the battery housing portion are held even when the orientation of the cylindrical battery changes. A symmetrical structure is possible.

According to the first aspect of the present invention, the cylindrical battery is held by using a section between the end surface portion of the plus terminal and the end surface portion of the negative electrode on the opposite side with almost no change in dimensions. With any cylindrical battery with a different size within the standard tolerances, the correct holding force is ensured, and it holds well without causing unnecessary rotation or holding with excessive holding force. can do.
Accordingly, it is possible to provide a battery package that is not easily affected by variations in the battery size of the cylindrical battery, and to reduce the cost of the battery package.

  According to the invention of claim 2, in addition to the above effect, the second pressing portion presses the outermost peripheral portion of the end face of the negative electrode of the cylindrical battery, so that the cylindrical battery is prevented from rotating with a minimum force. be able to.

  According to the invention of claim 3, in addition to the above effect, the cylindrical battery can be rotated or dropped even if the battery size is different with a simple structure by the three-point support in cooperation with the first pressing portion. It can hold effectively, without doing.

  According to the invention of claim 4, in addition to the above effect, the end wall for holding the cylindrical battery has a symmetrical structure, so that it can be satisfactorily cylindrical regardless of the orientation of the cylindrical battery. Battery can be held. In particular, when the battery storage portion is used as a storage case, it can be stored without considering the direction of the battery, which brings high convenience.

The perspective view which shows the whole battery package which concerns on the 1st Embodiment of this invention. The perspective view which decomposed | disassembled the battery package. Sectional drawing of the battery accommodating part in alignment with the AA in FIG. Sectional drawing which expands and shows the B section in FIG. Sectional drawing which expands and shows the C section in FIG. The perspective view which shows the whole battery package which concerns on the 2nd Embodiment of this invention. The perspective view seen from the back of the battery package which decomposed | disassembled a part of cover body of the battery package.

Hereinafter, the present invention will be described based on a first embodiment shown in FIGS.
FIG. 1 shows the entire blister pack 1 as a battery package to which the present invention is applied, and FIG. 2 shows a state in which the blister pack 1 is disassembled.
The blister pack 1 of FIGS. 1 and 2 is a package in which cylindrical batteries of a predetermined standard, for example, four AA cylindrical batteries 20 are arranged in parallel. The structure of the blister pack 1 will be described. The blister pack 1 includes a cover member 2 that can be seen through and a lid body 10 that is assembled to the cover member 2.

  Among them, the cover member 2 is formed by, for example, bulging molding that bulges to the front side over a substantially rectangular transparent PET (polyethylene terephthalate) sheet 2a as shown in FIG. In the bulging molding, substantially the entire area of the PET (polyethylene terephthalate) sheet is swelled to the front side of the PET (polyethylene terephthalate) sheet 2a in a shape that follows the entire outer shape of the four cylindrical batteries 20 arranged. . Thus, a mountain-shaped battery housing portion 3 is formed in a portion surrounded by the four sides of the cover member 2. Then, four cylindrical batteries 20 can be individually accommodated in the battery accommodating part 3 from the entrance / exit 3a (only part of which is shown in FIG. 2) opened on the back surface of the sheet which is an opening part of the battery accommodating part 3. Yes.

  For example, as shown in FIG. 2, the lid 10 has a hanging hanger portion 11 on the top (vertical) direction upper side, in this case, a rectangular cardboard 12 formed on the left side of the page, and a back surface of the cardboard 12. A cover sheet 13 made of synthetic resin is attached. The width direction of the cardboard 12 has a dimension according to the dimension of the cover member 2 in the width direction (here, corresponding to the battery length direction). Edges 13a are formed on the three sides of the cover sheet 13 excluding the side where the hanger part 11 is located so as to project in an inverted L shape toward the surface side. Among these, at the edge 13a on both sides in the width direction, an assembly groove 15 is formed on the front side of the lid 10 so as to slidably fit with the edges 2b on both sides in the width direction of the PET sheet 2a (cover member 2). ing.

  When the entire cover member 2 is arranged at a predetermined position on the front side of the lid body 10 while inserting the edge portions 2b on both sides of the cover member 2 into the groove portions 15 on both sides of the lid as shown in FIGS. The cover member 2 containing the four cylindrical batteries 15 is assembled with the lid 10, and the entrance / exit 3 a (open portion of the PET sheet 2 a) of the battery housing 3 is sealed with the lid 10. The remaining edge portion 13a of the lid body 10 abuts against the insertion end of the cover member 2 to form a stopper for positioning the cover member 2 at a fixed position.

  Each end wall 3b of the battery storage unit 3 facing the end of each cylindrical battery 20 is provided with a holding unit 16 that holds the cylindrical battery 20 from both ends. The holding portion 16 has a plurality of types of batteries with different external shapes of the battery main body 20a within the same standard, that is, the size of the battery main body 20a in which the upper and lower limits of the tolerance range within the standard are set as design dimensions and the battery material is accommodated. The device has been devised so that a plurality of types of batteries with different capacities and output characteristics, that is, cylindrical batteries 20 with varying battery dimensions within the same standard, can be satisfactorily retained.

  Here, as long as the cylindrical battery 20a is within the same standard, such as AA, the length distance L1 from the end surface portion 19 of the plus pole to the end surface portion 22 of the opposite minus pole (FIG. 2). ) Is almost unchanged, and only the outer shape of the battery main body 20a (FIG. 2; length L2, diameter D2) containing the battery material is changed. Therefore, the holding portion 16 has almost no change (battery tolerance is small), paying attention to a section from the end surface portion 19 of the positive electrode of the cylindrical battery 20 to the end surface portion 22 of the opposite negative electrode. A structure is employed in which the battery 20 is sandwiched and held from both ends.

  In this structure, a terminal that forms the positive electrode of the cylindrical battery 20 at the center of each end wall 3b facing the end on the positive electrode side of each cylindrical battery 20 in the battery storage unit 3, that is, the center of the end. A positive pressing portion 17 (corresponding to the first pressing portion of the present application) for pressing the end surface portion of the positive terminal 21 protruding from the cylindrical portion is formed on both sides of each end wall 3b facing the negative pole side end portion. A structure in which a negative pressing portion 23 (corresponding to the second pressing portion of the present application) for pressing the negative electrode end face portion 22 of the battery 15 is used. Thus, a structure that holds the section from the end surface portion 19 of the plus terminal 21 to the end surface portion 22 of the negative electrode on the opposite side with almost no change in dimensions is provided, and this holding structure has different sizes within the tolerance of the same standard. Any type of cylindrical battery 20 having a can be held.

  In particular, in the present embodiment, the positive pressing portion 17 and the negative pressing portion are provided on both end walls 3b facing the positive pole and the negative pole of the cylindrical battery 15 so that the left and right orientations of the battery storage section 3 can be accommodated. 23 is used. The same structure is shown in FIGS. 3 shows a cross section of the end wall 3b, and FIGS. 4 and 5 show enlarged cross sections of a part of the end wall 3b.

  The respective portions of each end wall 3b will be described. As shown in FIGS. 1 to 3, the end wall 3b includes both end walls sandwiching the center of the end surface of the cylindrical battery 20 (both sides of the entrance / exit 3a). A pair of inclined walls 25 are formed. The pair of inclined walls 25 are formed by walls inclined in the direction toward the center of the end face of the cylindrical battery 20 as the end wall portions are separated from the end face of the cylindrical battery 20. From the wall surface of the inclined wall 25, as shown in FIGS. 3 and 4, the outermost peripheral portion of the end surface 22 a that is the outermost periphery of the negative end surface portion 22 of the cylindrical battery 20, specifically, the end surface of the negative pole Contact surfaces 27 are formed which elastically contact with the corner portions 22b on both sides in the diameter direction across 22a. The pair of inclined walls 25 constitute a negative pressing portion 23 that presses the outermost peripheral portion (corner portion 22a) of the negative pole end face 22a of the cylindrical battery 15.

  In addition, a contact wall 29 (corresponding to the terminal contact wall of the present application) is formed between the pair of inclined wall portions 25 that correspond to the center of the end face of the cylindrical battery 20. The abutting wall 29 is located between the pair of inclined walls 25 so as not to come into contact with the corner 20b of the battery body 20a, which is called a shoulder, around the plus terminal 21 of the plurality of types of cylindrical batteries 20 within the standard. Is formed. Specifically, as shown in FIG. 3, the abutting wall 29 is formed with a wall at a point (smaller than the protruding length of the plus terminal 21) that is stepped by a predetermined distance α from the abutting surface 27. Thus, the positive end (corner portion 20b) of the battery body 20a does not contact the inclined wall portion 25, and only the end surface 21a of the positive terminal 21 of the cylindrical battery 20 elastically contacts the contact wall 29. It has a structure. The abutting wall 29 constitutes a plus pressing portion 17 that presses the end surface portion 19 of the plus terminal 21.

  By forming both the plus pressing portion 17 and the minus pressing portion 23 on the same end wall 3b, even if the orientation of the cylindrical battery 20 changes, the end face portion 19 of the plus terminal 21 hardly changes in dimensions. Cylindrical battery 20 having a common three-point support structure that is sandwiched by using a section from the end face 21a to the outermost corner portion 22a that forms the opposite end face portion 22 of the negative pole. Can be held.

That is, the holding will be described. For example, it is assumed that the contact surface 27 of the inclined wall 25 is formed according to the cylindrical battery 20 produced with the lower limit of tolerance within the AA standard as a design dimension.
Here, in order to display and display the AA standard cylindrical battery 20, it is assumed that the AA standard cylindrical battery 20 is accommodated in the battery storage unit 3 and packaged.

  At this time, since the cylindrical battery 20 has the printing surface 30 (shown in FIG. 2) printed on the exterior, the entrance 3a on the back surface is unified so that the direction of the printed content described on the printing surface 30 is unified. Therefore, a positive pole is disposed on the left side and a negative pole is disposed on the right side in this case, and the printing surface 30 is housed in the battery housing portion 3 in a direction facing the front side (convex side) of the battery housing portion 3.

With the storage, the negative electrode end surface 22a and the positive electrode end surface 21a of the cylindrical battery 20 face the end wall 3b of the battery storage unit 3 as shown by the solid lines in FIGS.
Of these, on the negative pole side, as shown in FIG. 3 and FIG. 5, two points (two points across the center of the battery) at the corner 22b that is the outermost periphery of the end face 22 of the negative pole are on both sides of the end wall 3b. It elastically abuts against the wall surface of each inclined wall 25. Each inclined wall 25 is deformed with this contact. The cylindrical battery 20 is pressed against the opposite positive pole side by the elastic restoring force of the inclined wall 25.

  On the other hand, on the positive pole side, as shown in FIGS. 3 and 4, the corner 20 b called the shoulder of the battery body 20 a does not touch the inclined wall 25, and only the end surface 21 a of the positive terminal 21 is between the inclined walls 25. Elastically abuts against the abutment wall 29 existing in The abutting wall 29 is deformed with this abutting. The cylindrical battery 15 is pressed against the opposite side, that is, the negative pole side by the elastic restoring force of the contact wall 29.

  By such pressing, the cylindrical battery 20 in the battery storage unit 3 is held by sandwiching a section from the end surface portion 19 of the plus terminal 21 to the end surface portion 22 of the negative electrode on the opposite side with almost no change in dimensions. In particular, the cylindrical battery 20 is stably held by supporting the three points sandwiched between the end surface 21a of the plus terminal 21 and the outermost corner 22b (two points) of the minus pole.

  Here, the cylindrical battery 20 housed in the battery housing unit 3 is not a battery of the type designed with the lower limit of tolerance within the standard as described above. For example, the upper limit of tolerance within the standard is set as a design dimension, It is assumed that the cylindrical battery 20H is of a type for high capacity, high output, etc. by using the variation.

In the cylindrical battery 20H, when the cylindrical battery 20 is used as a standard product, the outer dimension of the battery body 20a is larger than the cylindrical battery 20 (because the upper limit within the tolerance is the design dimension). If the cylindrical battery 20 shown by the solid line in FIG. 3 is a standard product, for example, the cylindrical battery 20H has a diameter of the battery body 20a that is larger than that of the standard product as shown by the two-dot chain line in FIGS. Dimensions and length are slightly larger.
However, even in the cylindrical battery 20H, the distance L1 from the end surface portion of the positive electrode to the end surface portion 22 of the negative electrode on the opposite side is almost the same as that of the standard product.

  Therefore, the cylindrical battery 20H stored in the battery storage unit 3 is held with the positive electrode end face 21a and the negative electrode corner 22b sandwiched between the positive electrode end surface 21a and the negative electrode corner 22b as shown in FIGS. . That is, it is not sandwiched between the positive electrode side and the negative electrode side of the exterior part of the battery body 20a whose outer dimensions vary greatly (it does not depend on the exterior part where the external shape changes).

  As a result, the cylindrical battery 20H also presses the end face 21a of the positive pole that hardly changes in dimensions as shown in FIGS. 3 to 5 with the contact wall 29, and the two outermost points of the end face 22a of the negative pole are inclined walls 25. As with the above standard product, which is pressed with a three-point support, it is stably held.

  By such a contact wall 29 (first pressing portion) and the inclined wall 25 (second pressing portion), the difference in holding force for each type is remarkably reduced, and the size of the battery body 15a within the same standard. Even the cylindrical batteries 20 and 20H of different types can be held with an appropriate holding force without being affected by the outer shape change.

  Therefore, if the cylindrical battery 20 (or 20H) is packaged in combination with the lid body 10, a plurality of types of cylindrical batteries 15 having different external dimensions within the same standard can be obtained with a common holding structure, that is, a common battery package. It can be held well. That is, it is possible to realize a package that is not easily affected by variations in battery dimensions.

  In particular, when the outermost peripheral portion of the negative electrode of the cylindrical battery 20 (20H) is pressed, the cylindrical battery 20 (or 20H) can be prevented from rotating with a minimum force. Moreover, the three-point support performed between the plus terminal 21 and the two points sandwiching the outermost plus terminal 21 of the minus pole has a simple structure, and the cylindrical battery 20 (or even if the size of the battery body 20a is different). 20h) can effectively hold the cylindrical battery 20 (or 20H) without rotating or dropping off.

  In addition, each end wall 3b of the battery housing 3 is provided with a pair of inclined walls 25 that abut on the outermost corner 22b of the negative pole and a contact wall 24 that abuts only the end surface 21a of the plus terminal 21. Even if the orientation of the cylindrical battery 20 (20H) is changed, the cylindrical battery 20 (20H) has a symmetrical structure that can be held. ) Can be held. In particular, when the battery storage unit 3 is used as a storage case, it can be stored without considering the direction of the battery. For this reason, the cover member 2 becomes easy to handle and brings high convenience.

6 and 7 show a second embodiment of the present invention.
In this embodiment, the common holding structure is not the blister pack 1 for fixing the cover member 2 and the lid body 10 as in the first embodiment by the combination of the edge portion 2b and the groove portion 15, but in FIG. As shown in FIG. 7, the cover member 2 is attached to the front side of the lid body 10, and as shown in FIG. 7, for example, the lid body 10 is perforated (not shown) so that only the lid portion 10 a that closes the entrance 3 a can be removed. This is applied to the blister pack 1 made as described above.

Even such a battery package has the same effects as those of the first embodiment. However, in FIG. 6 and FIG. 7, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
Note that the present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the spirit of the present invention. For example, in the above-described embodiment, an AA cylindrical battery has been described as an example.

1 Blister pack (battery package)
2 Cover member 3 Battery compartment 3a Entrance / exit (opening)
3b End Wall 10 Lid 19 Positive End Face 20, 20H Cylindrical Battery 20a Battery Main Body 21 Positive Terminal 22 Negative End End 25 Inclined Wall (Second Pressing Part)
29 Contact wall (terminal contact wall: first pressing part)

Claims (4)

A cover member that can be seen through is formed by bulging a battery storage portion that stores a cylindrical battery, and a lid that is assembled to the cover member so as to seal an opening of the battery storage portion. Battery package
A first pressing portion that is formed on an end wall facing the positive electrode side end portion of the cylindrical battery in the battery housing portion and presses an end surface portion of a positive terminal forming the positive electrode of the cylindrical battery;
Formed on an end wall facing the negative electrode side end portion of the cylindrical battery in the battery storage portion, pressing the negative electrode end surface portion of the cylindrical battery, and in cooperation with the first pressing portion, A battery package comprising: a second pressing portion that sandwiches the cylindrical battery.   2. The battery package according to claim 1, wherein the second pressing portion presses an outermost peripheral portion of an end face of the negative electrode of the cylindrical battery.   3. The battery package according to claim 2, wherein the second pressing portion presses corner portions on both sides in the diameter direction across the end face of the negative electrode of the cylindrical battery. Each end wall of the battery compartment is
The cylindrical battery is provided at both end wall portions sandwiching the center of the end surface of the cylindrical battery, and the end wall portions are inclined toward the center of the end surface of the cylindrical battery as they are separated from the cylindrical battery, respectively. A pair of inclined walls that form a contact surface that contacts the outermost corner of the end surface on the negative pole side;
The contact surface is provided between the pair of inclined wall portions with a predetermined step and has a terminal contact wall that can contact only the end surface of the positive terminal of the cylindrical battery,
The first pressing portion is constituted by the terminal contact wall,
The battery package according to claim 1, wherein the second pressing portion includes the pair of inclined walls.

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