KR20080036528A - Battery tray and method for manufacturing battery using the same - Google Patents

Abstract

A battery tray for accommodating a battery, and a method for preparing a battery by using the battery tray are provided to allow various kinds of batteries having different thickness or size to be accommodated in a single tray. A battery tray comprises an aperture(7); an accommodation part(2) which is installed at the inside of the aperture; and inclination parts(3a,3b) which are installed at the inside of the accommodation part, wherein the interval between the corresponding inclination parts is spread toward the aperture, and a battery(5) is accommodated in the accommodation part in the state which it is surrounded with the aperture and is in contact with the inclination part.

Description

Battery tray and manufacturing method of battery using this battery tray {BATTERY TRAY AND METHOD FOR MANUFACTURING BATTERY USING THE SAME}

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a battery tray for storing batteries, for example, in a battery manufacturing process. It is about.

In the manufacturing process of a battery, there exists a process of processing in the state which stored the battery in the tray. In addition, a tray is also used for sorghum and storage between manufacturing processes. Patent Literatures 1 and 2 propose battery trays capable of reducing the weight and securing required strength.

In the battery formation process, the battery is charged while the electrodes are pressed against the upper and lower terminals of the battery while the batteries are stored in the tray. In this case, it is necessary to secure the positional accuracy between the upper and lower terminals of the battery and the electrode to ensure reliable charging.

20A shows a plan view of an example of a conventional battery tray. This figure has shown the example of the square battery tray. A plurality of battery storage portions 101 are provided in the rectangular battery tray 100. FIG. 20B shows an enlarged view of one portion of the battery compartment 101. This figure has shown the state which accommodated the square battery 102 (diagonal part).

Both ends 103 of the battery compartment 101 are narrowed in width, and both ends of the square battery 101 are engaged with this portion. Thereby, the square battery 102 can be mounted to the battery accommodating part 101 stably. Therefore, in the chemical conversion process, the accuracy of the positional relationship between the upper and lower terminals of the square battery 101 and the upper and lower electrodes for charging can be ensured, and the charging can be completed reliably.

[Patent Document 1]

Japanese Patent Application Laid-Open No. 2000-53182

[Patent Document 2]

Japanese Patent Application Laid-Open No. 2002-362566

However, the battery tray 100 as shown in FIG. 20 has a design in which the widths of the both ends 103 of the battery compartment 101 are adjusted to the thickness of the square battery 102 as described above. For this reason, it was necessary to prepare the exclusive tray for every square battery of different thickness. In this case, the metal mold | die which forms a tray was also used for every tray, and was disadvantageous in terms of cost. Moreover, in the manufacturing process, it is necessary to change the corresponding tray according to the thickness of the square battery, which is disadvantageous in terms of production efficiency. Moreover, the above-mentioned patent documents 1 and 2 did not make special proposal about the structure which can accommodate a battery of various types.

The present invention solves the conventional problems as described above, and an object of the present invention is to provide a battery tray that can accommodate a battery of various types having different thicknesses or outer diameters in one tray.

In order to achieve the above object, the battery tray of the present invention is a battery tray for storing a battery, comprising an opening, an accommodating portion provided inside the opening, and an inclined portion provided inside the accommodating portion, The space between the inclined portions extends toward the opening, and the battery is enclosed by the opening and can be stored in the storage portion in contact with the inclined portion.

According to the present invention, a single tray can accommodate various kinds of batteries having different thicknesses or outer diameters.

Since the battery tray according to the present invention has an inclined portion in which the distance between the opposing portions becomes wider toward the opening, even if the battery has a different thickness or outer diameter, the battery tray can be mounted on the groove by changing the height of the mounting position. The tray can accommodate a variety of batteries of different thicknesses or outer diameters.

In the battery tray of the present invention, the battery tray is a battery tray for storing a cylindrical battery, and the inclined portion is preferably formed to support the bottom portion of the cylindrical battery at least three points. This configuration is suitable for storing cylindrical batteries having different outer diameters.

Moreover, it is preferable that the said inclined part is a groove | channel containing the opposing inclined surfaces, and the space | interval of the opposing inclined surfaces spreads toward the said opening. This configuration is suitable for storing rectangular batteries having different thicknesses.

In addition, when the storage state of the battery is viewed from the side opposite to the opening, the opening preferably includes a restricting surface for restricting the movement in the width direction of the battery. According to this configuration, since the movement in the width direction of the battery can be regulated, the battery can be stored stably in the width direction.

Further, when the storage state of the battery is viewed from the side opposite to the opening, it is preferable that the opening has a restriction surface for restricting the rotational movement of the battery at a pair of diagonal positions of the battery. According to this configuration, even when the thickness of the battery to be stored is increased, a stable upright state can be maintained in a state in which the thickness of the battery to be stored is rotated on the opposite side to the regulating surface that regulates the rotational movement as the thickness increases.

Moreover, it is preferable that the regulation surface which regulates the movement of the said width direction, and the regulation surface which regulates the said rotational movement intersect at obtuse angle.

Further, when the battery is erected on the groove, it is preferable that the opposite inclined surfaces are arranged such that the distance between the one inclined surface and the battery becomes smaller than the distance between the other inclined surface and the battery. Do. According to this structure, the rattling at the time of storing a large square battery can be made small, and stable storage is attained.

The battery tray according to any one of claims 1 to 7, wherein an inner peripheral surface of the opening and an inner peripheral surface of the housing part are on the same surface. According to this structure, the shaping | molding of a tray becomes easy.

Moreover, it is preferable that the said opening forms several opening rows, and each said opening row is arrange | positioned in parallel.

Moreover, it is preferable that the said battery tray combined the 1st tray in which the said groove was formed, and the 2nd tray in which the said opening was formed. According to this structure, the structure of the metal mold | die in case of resin molding a tray becomes simple.

It is preferable that the said 2nd tray is replaceable. According to this structure, the 1st tray is shared, and the 2nd tray is replaced by changing the opening shape, and the range of the thickness of the battery which can be accommodated can be extended.

Moreover, it is preferable that the said taper surface is formed in the opposite side to the said accommodating part. According to this configuration, the battery can be easily stored.

In addition, it is preferable that a through hole is formed in the inside of the accommodating portion so that an electrode having passed through the through hole and a battery housed in the accommodating portion from the electrode on the opening side can be fitted. According to this structure, a battery tray can be used in a chemical conversion process.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described, referring drawings.

(Embodiment 1)

1 is a view showing a lower tray among upper and lower battery trays according to an embodiment of the present invention. Fig. 1A is a plan view and Fig. 1B is a side view. The lower tray 1 is provided with a large number of battery compartments 2, and each of the battery compartments 2 can accommodate one rectangular battery.

2 shows an enlarged view of the battery compartment 2. FIG.2 (a) is a top view, and FIG.2 (b) is sectional drawing in the AA line of FIG.2 (a). In FIG. 1, the battery accommodating part 2 is disposed to be inclined, but in FIG. 2, the battery accommodating part 2 is vertically illustrated for easy understanding. Moreover, the square battery 5 at the time of storing is shown by the dashed-two dotted line.

In Fig. 2A, grooves 3, which are inclined portions, are formed at both ends in the width direction (arrow a direction) of the battery compartment 2 so as to sandwich the through holes 4 therebetween. In the present embodiment, the groove 3 is not formed in the forming portion of the through hole 4. For this reason, the groove | channel 3 of FIG. 2 (b) shows the groove | channel 3 of the upper side among the groove | channel 3 which interposes the through hole 4 in the illustration of FIG. Will be.

In the second embodiment, the configuration may be such that the through-holes are formed in the grooves without dividing the grooves as in the housing 21 of the lower tray shown in FIG. 13.

The groove 3 is formed in the inside (bottom surface side) of the battery accommodating part 2, as shown in FIG. 2 (b), and forms the inclined surface 3a and the inclined surface 3b which are opposing to V shape. . The inclined surfaces 3a and 3b are formed such that the distance between the inclined surface 3a and the inclined surface 3b is widened toward the surface side of the lower tray 1. The bottom surface of the square battery 5 is mounted on the groove 3, and the position of the height direction (arrow b direction) of the square battery 5 is determined by the groove 3.

In addition, although the groove | channel 3 is shown in the V-shaped example, the bottom part of the groove | channel 3 which the square battery 5 does not contact may be curved, and may include the horizontal surface. Moreover, the structure containing the curved surface can also be considered also about the inclined surface which the square battery 5 contacts. That is, the cross-sectional shape of the groove 3 is not limited to a perfect V shape, but may include a portion formed so as to widen the space between the opposite inclined surface 3a and the inclined surface 3b.

Each battery compartment 2 is provided with a through hole 4. As shown in FIG. 2 (b), the through hole 4 is formed to penetrate the bottom surface of the lower tray 1. In the chemical conversion step, the electrode is passed through the through hole 4, and the other electrode dropped from the upper side of the rectangular battery 5 can be pressed to charge the rectangular battery 5 by pressing the electrode. Details of the charging will be described later in detail.

3 is a view showing an upper tray. Fig. 3 (a) is a plan view and Fig. 3 (b) is a side view. The upper tray 6 forms a plurality of openings 7 in the flat member. When the lower tray 1 of FIG. 1 and the upper tray 6 of FIG. 3 are combined, one portion of the opening 7 corresponds to one portion of the battery compartment 2 of the lower tray 1.

4 shows an enlarged view of the opening 7. (A) is a top view, and (b) is sectional drawing in the BB line | wire of (a). In FIG. 3, the opening 7 is disposed to be inclined, but in FIG. 4, the opening 7 is vertically illustrated for easy understanding. Moreover, the square battery 5 at the time of storing is shown by the dashed-two dotted line.

As shown in Fig. 4B, the opening 7 is formed so as to penetrate the upper tray 6 in the thickness direction. As shown in Fig. 4A, portions surrounded by a pair of vertical planes 8 and 9, horizontal planes 10 and 11 and inclined planes 12 and 13, respectively, constitute an opening 7, and the opening 7 ) Is formed in a polygonal shape. The inclined surfaces 12 and 13 are arranged at a pair of diagonal positions of the opening 7, that is, at a pair of diagonal positions of the stored battery 5. The angle formed by the horizontal surface 10 and the inclined surface 12 and the angle formed by the horizontal surface 11 and the inclined surface 13 are obtuse angles, respectively. Specifically, each of these angles is preferably an obtuse angle of 100 degrees or more and 150 degrees or less. In the present embodiment, the angle is 120 degrees.

Although details will be described later, the horizontal surfaces 10 and 11 are regulating surfaces for restricting movement of the battery in the width direction (arrow a direction), and the inclined surfaces 12 and 13 are two directions of the battery (arrow c and d directions). It is a regulation surface which regulates rotational movement in one direction (arrow d direction) during rotational movement of.

When accommodating the square battery 5 in the battery accommodating part 2, the square battery 5 is inserted into the battery accommodating part 2 through the opening 7 above the opening 7. In order to facilitate the insertion, a tapered surface 14 is provided above the opening 7. As shown in FIG. 4A, the rectangular battery 5 is restricted in position on the horizontal surfaces 10 and 11 and the inclined surfaces 12 and 13. For this reason, the tapered surface 11 should just be provided in each of these surfaces.

5 is a view showing a combination of the upper tray 6 and the lower tray 1. Fig. 5A is a plan view and Fig. 5B is a side view. As shown in FIG. 5 (b), there is an upper tray 6 above the lower tray 1, and in the illustration of FIG. 5 (a), the battery compartment is located below the opening 7 of the upper tray 6. There will be (2).

Fig. 6A shows an enlarged view of the opening 7 portion in Fig. 5A. (B) is sectional drawing in the CC line of FIG. In FIG. 6A, the opening 7 is inclined, but in FIG. 6A, the opening 7 is vertically illustrated for ease of understanding. Moreover, the square battery 5 at the time of storing is shown by the dashed-two dotted line.

One of the battery compartments 2 corresponds to one of the openings 7. When the square battery 5 is inserted above the opening 7, the bottom surface of the square battery 5 abuts the inclined surfaces 3a and 3b of the groove 3, and the square battery 5 opens in the opening 7. It is accommodated in the battery accommodating part 2 in the state enclosed with.

In this embodiment, the battery tray is divided into an upper tray 6 and a lower tray 1. According to such a structure, the structure of the metal mold | die in case of resin molding becomes simple. In addition, positioning of the upper and lower trays can be performed by fitting a positioning pin and a positioning hole. In the case of resin molding, the positioning pin and the positioning hole may be integrally molded.

Next, the battery formation process will be described. FIG. 7A is a plan view of the rectangular battery 5 housed in the battery compartment 2. 7 (b) and 7 (c) are sectional views taken along the line DD of FIG. 7 (a), FIG. 7 (b) shows a state before charging, and FIG. 7 (c) shows a state during charging. As shown in FIG. 7A, when storing the square battery 5, the square battery 5 is surrounded by an opening 7, and as illustrated in FIG. 7B, the square battery 5 has a groove 3. ) Is housed in the housing portion 2 in contact with the inclined surfaces 3a and 3b.

As shown in FIG. 7B, in the chemical conversion process, the upper electrode 15 and the lower electrode 16 are disposed above and below the rectangular battery 5. At the time of charging, the upper electrode 15 drops and moves to approach the positive electrode terminal 17 of the square battery 5. The lower electrode 16 rises and passes through the through hole 4 to move closer to the negative electrode terminal 18 of the square battery 5. In the state of FIG. 7C, the upper and lower electrodes 15 and 16 are in contact with the positive electrode terminal 17 and the negative electrode terminal 18, respectively. The lower electrode 16 presses the square battery 5 to the upper side, and the square battery 5 is raised by this pressurization. In this state, the rectangular battery 5 is charged, and after charging, the upper and lower electrodes 15 and 16 move in the opposite directions to the above and are separated from the rectangular battery 5.

Next, the storage of the square cells 5 having different thicknesses will be described in detail with reference to Examples. The battery tray according to the present embodiment can accommodate a rectangular battery 5 having a thickness in a range of at least 4 mm to 8 mm. Hereinafter, the example which accommodated the square battery 5 of four types of thickness of 4 mm, 5 mm, 6 mm, and 8 mm is demonstrated.

8 is a plan view of the rectangular battery 5 having a thickness of 4 mm in the battery compartment 2. (A) is sectional drawing in the EE line of FIG. 8, and FIG. 9 (b) is sectional drawing in the FF line of FIG.

As shown in part A of FIG. 8, the position of one end of the square battery 5 is restricted by both the horizontal plane 10 and the inclined plane 12 of the opening 7. The shape where the edge part of the square battery 5 is restrict | limited by the inclined surface 12 is shown in the C part of FIG. 9 (a). As shown in part B of FIG. 8, the other end of the square battery 5 is restricted in position on both the horizontal surface 11 and the inclined surface 13 of the opening 7. The shape where the edge part of the square battery 5 is restrict | limited to the inclined surface 13 is shown in part D of FIG. 9 (b).

As shown in Figs. 9A and 9B, the square battery 5 is mounted on the inclined surfaces 3a and 3b of the V-shaped groove 3 in cross section. In this state, two ridges at the bottom of the square battery 5 are in linear contact with the inclined surfaces 3a and 3b of the groove 3. Since the square battery 5 is mounted on the groove 3, the position of the height direction (arrow b direction) is determined, and the bottom part of the square battery 5 is located at the height h1 from the tray bottom surface.

In the state where the square battery 5 is mounted on the groove 3, it is unstable to maintain the upright state. However, as described above, the rectangular battery 5 is in the opening 7, and the rectangular battery 5 is restricted in the direction of arrow e by the inclined surface 12, and is moved in the direction of arrow f by the inclined surface 13. This is regulated (see Figs. 8 and 9). As a result, the square battery 5 can be kept upright without falling down.

10 is a plan view of the rectangular battery 5a having a thickness of 5 mm in the battery compartment 2. (A) is sectional drawing in the GG line of FIG. 10, and FIG. 11 (b) is sectional drawing in the HH line of FIG. The square battery 5a is 1 mm thicker than the square battery 5 having a thickness of 4 mm, but the width is the same.

11 (a) and 11 (b), the square battery 5a is mounted on the groove 3, and the bottom surface of the square battery 5a is positioned at the height h2 from the bottom surface of the tray. have. The square battery 5a of thickness 5mm makes the thickness t 1 mm larger than the square battery 5. For this reason, the height h2 of FIG. 11 (a) and FIG. 11 (b) is higher than the height h1 of FIG. 9 (a) and FIG. 9 (b). That is, since the groove 3 is V-shaped, even if it is a square battery with a different thickness, it can mount on the groove 3 by changing the height of a mounting position.

As shown in part A of FIG. 10, the position of one end of the square battery 5 is regulated by both the horizontal plane 10 and the inclined plane 12 of the opening 7. The shape where the edge part of the square battery 5 is restrict | limited to the inclined surface 12 is shown in the C part of FIG. As shown in part B of FIG. 10, the other end of the square battery 5 is restricted in position on both the horizontal surface 11 and the inclined surface 13 of the opening 7. The shape where the edge part of the square battery 5 is restrict | limited to the inclined surface 13 is shown in part D of FIG. 11 (b).

These states are the same as in the case of the square battery 5 having a thickness of 4 mm described with reference to FIGS. 8 and 9. However, the rectangular battery 5a is rotated from the position of FIG. 8 by increasing thickness compared with the rectangular battery 5. This will be described in detail with reference to the drawings of FIGS. 10 and 11.

As shown in Fig. 10, the rectangular battery 5a is positioned by the inclined surfaces 12 and 13 at a pair of diagonal positions, respectively. For this reason, both ends of the square battery 5a cannot be rotated along the inclined surfaces 12 and 13 in the direction of the arrow d. This is because the distance between the inclined surface 12 and the inclined surface 13 at the diagonal position of the opening 7 is smaller than the width of the square battery 5a.

However, the position opposite to the inclined surfaces 12 and 13 among the both ends of the square battery 5a is not regulated by the opening 7. As described above, the rectangular battery 5a is positioned in the width direction (arrow a direction) to the horizontal plane 10 and the horizontal plane 11, but the shape of each end portion is curved. For this reason, it is possible for the square battery 5a to rotate in the direction of an arrow c while both ends of the square battery 5a move along the horizontal surfaces 10 and 11.

Here, for example, it is assumed that two ridges at the bottom of the square battery 5a were mounted in a state of being in linear contact with the inclined surfaces 3a and 3b of the groove 3. In this state, when the square battery 5a is rotated to twist in the direction of the arrow c, the two ridges at the bottom of the square battery 5a move away from each of the inclined surfaces 3a and 3b of the groove 3. As a result, the two ridges at the bottom of the square battery 5a are in linear contact with each of the inclined surfaces 3a and 3b, and the state is in contact with each of the inclined surfaces 3a and 3b at one point and at two points. Done.

That is, since the square battery 5a becomes larger than the square battery 5, the state of FIG. 8 cannot be maintained. However, as shown in FIG. 10, the stable state without rotation falls in the state where the rotational movement in the direction of the arrow c by the angle θ1 and the contact state on the groove 3 of the bottom of the square battery 5a are changed from the line contact to the point contact. I can keep it. Angle (theta) 1 is the rotation angle of the centerline of the width direction of a square battery. Θ1 was 0.57 ° in this example.

In addition, in FIG. 10, the angle (theta) 1 has shown the angle which a perpendicular | vertical line and the side surface of a square battery make. The same applies to the angles θ2 and θ3 in FIG. 12.

FIG. 12A is a plan view of the rectangular battery 5b having a thickness of 6 mm in the battery compartment 2. FIG. 12B is a plan view of the rectangular battery 5c having a thickness of 8 mm in the battery compartment 2. As described above, the rectangular batteries 5b and 5c having a larger thickness are rotated to be stored in the storage unit 2. The larger the angle, the larger the rotation angle. In the case of the square battery 5b, θ2 was 1.78 °. In the case of the square battery 5c, θ3 was 4.474 °. That is, according to the battery tray according to the present embodiment, a battery of various kinds having different thicknesses can be stored, and each time the battery contained therein becomes larger, the stored battery is in a stable upright state in a state of rotating movement according to an increase in thickness. Can be maintained.

As mentioned above, the battery tray which concerns on this embodiment demonstrated what can accommodate the various types of square battery of which thickness differs. As described above, when the rectangular battery having an increased thickness is accommodated, the angle of rotation of the rectangular battery also increases as the thickness increases.

However, the center part of the square battery which the up-and-down electrodes 15 and 16 (FIG. 7) contact is near the rotating shaft. For this reason, even if the rotation angle increases, the area of the contact portion between the upper and lower electrodes 15, 16 in the center portion and each terminal of the rectangular battery is the same or hardly changes. Therefore, the contact area between the upper and lower electrodes 15 and 16 and the terminal of the square battery is secured even in the rotational movement, so that the charging can be surely performed in the chemical conversion process.

Moreover, although the battery tray which concerns on this embodiment can accommodate square battery with a different thickness, the range of thickness is restrict | limited by the shape of the opening of an upper tray. In order to correspond to the thickness of a wider square battery, a plurality of types of upper trays having different openings may be prepared. In this manner, the lower tray can be used in a wide range of thickness of the square battery that can be stored by simply replacing the upper tray while being shared.

Similarly, by using an upper tray having a different opening shape in the width direction so as to correspond to the wide dimensions of the wide rectangular battery, the width of the rectangular battery that can be accommodated can be widened. Moreover, you may use combining the upper tray of thickness correspondence and the width correspondence.

The battery tray according to the present embodiment has been described as an example in which the rotation angle of the rectangular battery becomes zero when the rectangular battery having a thickness of 4 mm is stored, but the present invention is not limited thereto, and may be appropriately determined.

In addition, although the battery tray which concerns on this embodiment was demonstrated to the example used at a chemical conversion process, use is not limited to this. For example, the battery may be used for exchanging batteries between manufacturing processes, or used for storing batteries.

In the battery tray according to the present embodiment, as described above, the shape of the opening of the upper tray maintains the upright state of the rectangular battery even when accommodating rectangular batteries having different thicknesses, and at the time of charging, the electrode and the rectangular battery. The terminal part of the terminal is to be contacted. On the other hand, when the positional precision of the square battery required at the time of storage is loose, the opening shape of an upper tray is not limited to the shape of this embodiment. For example, while the V-shaped groove of the lower tray is provided, the shape of the opening of the upper tray can be considered a shape in which the inclined surface has been eliminated to narrow the dimension in the thickness direction of the battery. Even such a tray can accommodate various types of square batteries having different thicknesses.

(Embodiment 2)

EMBODIMENT OF THE INVENTION Hereinafter, Embodiment 2-5 are demonstrated, referring drawings. The following description only describes the parts different from the first embodiment. Since the other structure is the same as that of Embodiment 1, the overlapping description is abbreviate | omitted.

FIG. 13 is a plan view showing a lower tray among upper and lower battery trays according to the second embodiment. FIG. Since the shape of a side surface is the same as that of FIG. 1 (b) of the said Embodiment 1, it abbreviate | omits. In FIG. 1, the battery accommodating part 2 is inclined with respect to the edge of the outer periphery of the lower tray 1, and is arrange | positioned. In this inclined direction, the battery compartments 2 are arranged in a column shape, and the rows are parallel to each other.

On the other hand, in the configuration of FIG. 13, the points in which the columns of the battery compartments 21 arranged in the column shape are parallel to each other are the same as in FIG. 1, but the rows are also parallel to the sides of the outer periphery of the lower tray 20. It is arranged to be.

FIG. 14 is a plan view illustrating the upper tray 22 corresponding to the lower tray 20 of FIG. 13.

Since the shape of a side surface is the same as that of FIG. 3 (b) of the said Embodiment 1, it abbreviate | omits. The upper tray 22 is identical to the upper tray 6 of FIG. 3 except for the arrangement of the openings. The opening 23 in FIG. 14 is disposed so as to correspond to the battery compartment 21 when the upper tray 22 is mounted on the lower tray 20 in FIG. 13. That is, each column of the opening 7 is arrange | positioned so that it may become parallel to the edge of the outer periphery of the upper tray 22. As shown in FIG.

In the present embodiment, the number of batteries stored per unit area is smaller than that of the tray of the first embodiment, but the arrangement of the battery compartment 21 and the opening 23 is simplified. For this reason, setting of the installation apparatus, such as the installation apparatus of a tray and the battery withdrawal in a tray, may become easy.

(Embodiment 3)

The trays of the first and second embodiments are separated into an upper tray and a lower tray, but the trays of the third embodiment are integrally formed with the upper and lower trays. (A) is a top view which shows the opening part 24, (b) is sectional drawing in the II line of FIG. 15 (a), and FIG. 15 (c) is sectional drawing in the JJ line of FIG. 15 (a). to be.

If the upper and lower trays are to be molded integrally with the configuration as shown in Fig. 6 (b), it is difficult to remove the mold from the storage section 2 from the storage section 2. In the cross-sectional view of FIG. 15B, the inner circumferential surface of the opening 24 and the inner circumferential surface of the storage portion 25 are on the same plane. Similarly, in the sectional view of FIG. 15C, the inner circumferential surface of the opening 24 and the inner circumferential surface of the storage portion 25 are on the same plane. This structure makes it easy to take out a metal mold | die from the accommodating part 25, and can shape | mold the tray which integrated the upper and lower trays easily.

This embodiment is effective when the molding is easy and the width dimension of the battery to be stored is limited.

(Embodiment 4)

16 is a sectional view of a tray according to the fourth embodiment. This figure is corresponded to FIG. 9 (a) which is sectional drawing in the E-E line of FIG. Hereinafter, it demonstrates, comparing with Embodiment 1. As shown in FIG. The square battery 5 of FIG. 16 is the same as the square battery 5 of FIG. 9 (a). Two ridges at the bottom of the square battery 5 are in linear contact with the inclined surfaces 26a and 26b of the groove 26, and the square battery 5 is mounted at a position h1 from the tray bottom surface. This mounting state is the same as that of the square battery 5 of FIG. 9 (a) of Embodiment 1. FIG.

16 has a different setting of the inclination angles of the inclined surfaces 26a and 26b compared with the configuration of FIG. In FIG. 16, when the battery 5 is erected on the groove 26, the distance between the inclined surface 26b and the battery 5 becomes smaller than the distance between the inclined surface 26a and the battery 5 so that the inclined surface 26a, 26b) is arranged.

The square battery 5a is the same battery as the square battery 5a shown in Fig. 11A. The rectangular battery 5a of FIG. 16 is mounted in the position of height h2 from the tray bottom surface similarly to FIG. 11 (a). As described above, when the rectangular battery 5a is mounted, the rectangular battery 5a is in a position in which the rectangular battery 5a is rotated in the direction of the arrow c in FIG. 10 from the position where the rectangular battery 5 is mounted. At this time, a gap is formed between the ridgeline of the bottom portion of the square battery 5a and the inclined surface 3b as shown in Fig. 11A.

On the other hand, in Fig. 16, a gap is generated between the ridge line 26b at the bottom of the rectangular battery 5a and the inclined surface, but the size thereof is smaller than the gap in Fig. 11A. In Fig. 16, the square battery 5b is the same battery as the square battery 5b shown in Fig. 12A. The square battery 5b is mounted in the position of height h3 from the tray bottom surface. As a result, the gap between the ridgeline of the rectangular battery 5b and the inclined surface 26b is larger than when the rectangular battery 5a is mounted. However, this gap becomes smaller than the gap in the case where the square battery 5b is mounted in the configuration shown in Fig. 11A.

Thus, according to the structure of FIG. 16, when a large square battery is mounted, the clearance gap can be made between the ridgeline and the inclined surface 26b of a square battery compared with the structure of FIG. This is because the inclined surfaces 26a and 26b are disposed so that the distance between the inclined surface 26b and the battery 5 becomes smaller than the distance between the inclined surface 26a and the battery 5 as described above.

That is, according to this embodiment, even if the thickness of the rectangular battery accommodated becomes large, the increase of the clearance between the ridgeline and the inclined surface of the bottom part of a rectangular battery can be suppressed. Thereby, the rattling at the time of storing a large square battery can be made small, and stable storage is attained.

In addition, although the above description demonstrated the part corresponding to the cross section of the EE line of FIG. 8, and the cross section of the GG line of FIG. 10, the same also applies to the part corresponding to the cross section of the FF line of FIG. 8, and the cross section of the HH line of FIG. In this case, however, the inclined surfaces of the rectangular battery 5b in contact with each other are opposite to each other as shown in Figs. 8B and 11B, so that the inclination angles of the inclined surfaces 26a and 26b shown in Fig. 16 are set. Will also be reversed.

(Embodiment 5)

17 is a plan view showing a lower tray among upper and lower battery trays according to the fifth embodiment. Since the shape of a side surface is the same as that of FIG. 1 (b) of the said Embodiment 1, it abbreviate | omits. FIG. 18 is a plan view illustrating the upper tray 32 corresponding to the lower tray 30 of FIG. 17. Since the shape of a side surface is the same as that of FIG. 3 (b) of Embodiment 1, it abbreviate | omits. In the example of FIG. 17, FIG. 18, the inclined part of the inside of the accommodating part 31 of the lower tray 30 was made into the conical surface, and the opening 33 of the upper tray 33 was made circular, and the cylindrical shape of which an outer diameter differs is shown. The battery can be stored.

Since the mounting portion has a conical surface, storage of cylindrical batteries having different outer diameters is possible in this embodiment. This will be described in detail with reference to FIG. 19. FIG. 19 is a cross-sectional view of a combination of the lower tray 30 of FIG. 17 and the upper tray 32 of FIG. 18. An inclined portion 34 is formed inside the storage portion 31. In the example of FIG. 19, the inclined portion 34 is a conical surface. The entire circumference of the bottom of the stored cylindrical battery 35a is in contact with the inclined portion 34.

The cylindrical battery 35b is a battery having a larger outer diameter than the cylindrical battery 35a. When the cylindrical battery 35b is accommodated, the position of the bottom portion is higher than that when the cylindrical battery 35a is stored. However, there is no change in the entire circumference of the bottom portion in contact with the inclined portion 34. It can be stored as well. The cylindrical battery that can be stored may be, for example, a battery having at least a single type (34.2 mm in diameter) to a single 4 type (l0.5 mm in diameter).

In FIGS. 17-19, although the inclination part was demonstrated as an example of the cone surface, it is not limited to this. That is, the inclined portion 34 may be wider as it faces the opening 33 and may have a shape capable of supporting the bottom portion of the battery at least three points, for example, a pyramidal surface. In addition, the inclination part 34 is not limited to a planar shape, For example, what inclined three or more ribs may be sufficient as it. Similarly, the opening 33 of the upper tray 32 is not limited to a circular shape, but may be, for example, a polygon having a triangular shape or more.

Also in this embodiment, the upper and lower trays can be integrally formed by forming the inner circumferential surface of the opening 33 and the inner circumferential surface of the storage portion 31 in the same plane as in the third embodiment.

As described above, according to the present invention, since a single tray can accommodate a variety of batteries having different thicknesses or outer diameters, the battery tray according to the present invention is provided between the tray and the manufacturing process when charging in the chemical conversion step, for example. It is useful as a tray at the time of receiving or a storage and a tray of a battery.

1 (a) is a plan view showing a lower tray in one embodiment of the present invention,

(B) is a side view showing a lower tray in one embodiment of the present invention;

2 (a) is an enlarged plan view of the battery compartment;

(B) is sectional drawing in the AA line of FIG.

3 (a) is a plan view showing an upper tray,

(B) is a side view showing the upper tray,

4 (a) is an enlarged plan view of the opening;

(B) is sectional drawing in the BB line | wire of (a),

5 (a) is a plan view of the upper tray and the lower tray combined state,

5 (b) is a side view of a state in which the upper tray and the lower tray are combined;

6 (a) is an enlarged view of the opening portion in FIG. 5 (a),

(B) is sectional drawing in the CC line of FIG. 6 (a),

7 (a) is a plan view of a state in which a rectangular battery is stored in a battery accommodating portion in a chemical conversion process;

7 (b) is a cross-sectional view of (a) in a state before charging,

7 (c) is a cross-sectional view of the state (a) at the time of charging;

8 is a plan view of a rectangular battery having a thickness of 4 mm in a battery compartment;

(A) is sectional drawing in the EE line | wire of FIG.

(B) is sectional drawing in the FF line of FIG.

10 is a plan view of a rectangular battery having a thickness of 5 mm in a battery compartment;

(A) is sectional drawing in the GG line of FIG.

(B) is sectional drawing in the HH line | wire of FIG.

12 (a) is a plan view of a rectangular battery having a thickness of 6 mm in a battery compartment;

12 (b) is a plan view of a state in which a rectangular battery having a thickness of 8 mm is stored in a battery accommodating portion;

13 is a plan view showing a lower tray according to Embodiment 2 of the present invention;

14 is a plan view showing an upper tray according to Embodiment 2 of the present invention;

15 (a) is a plan view showing a portion of the opening 24,

(B) is sectional drawing in the I-I line | wire of (a),

(C) is sectional drawing in the J-J line | wire of (a),

16 is a sectional view of a tray according to Embodiment 4 of the present invention;

17 is a plan view showing a lower tray according to Embodiment 5 of the present invention;

18 is a plan view showing an upper tray according to Embodiment 5 of the present invention;

19 is a sectional view of a tray according to Embodiment 5 of the present invention;

20 (a) is a plan view of an example of a conventional battery tray,

20B is an enlarged view of one portion of the battery compartment 101.

※ Explanation of code for main part of drawing

1, 20, 30: lower tray 2, 21, 25, 31: storage

3, 26: groove 3a, 3b, 26a, 26b: inclined surface

4 through hole 5, 5a, 5b, 5c: square battery

6, 22, 32: upper tray 7, 23, 24, 33: opening

8, 9: vertical plane 10, 11: horizontal plane

12, 13 inclined surface 14 tapered surface

15: upper electrode 16: lower electrode

35a, 35b: cylindrical battery

Claims (14)

As a battery tray for storing a battery, An opening, an accommodating portion provided inside the opening, and an inclined portion provided inside the accommodating portion, The space | interval of opposing inclination parts spreads toward the said opening, The battery is enclosed in the opening, and the battery tray can be accommodated in the housing while being in contact with the inclined portion. The method of claim 1, The battery tray is a battery tray for storing a cylindrical battery, and the inclined portion is formed to support the bottom portion of the cylindrical battery at least three points. The method of claim 1, The inclined portion is a groove including opposing inclined surfaces, and the interval between the inclined inclined surfaces extends toward the opening. The method of claim 3, wherein And the opening includes a restricting surface for restricting movement of the battery in a width direction when viewed from the side facing the opening. The method according to claim 3 or 4, When the storage state of the battery is viewed from the side opposite to the opening, the opening has a restriction surface for restricting the rotational movement of the battery at a pair of diagonal positions of the battery. The method of claim 5, A battery tray characterized in that a restricting surface for regulating the movement in the width direction and a restricting surface for regulating the rotational movement intersect at an obtuse angle. The method of claim 3, wherein When the battery is erected on the groove, the opposite inclined surface is arranged such that the distance between the one inclined surface and the battery becomes smaller than the distance between the other inclined surface and the battery. A battery tray, characterized in that. The method according to claim 1 or 2, A battery tray, wherein the inner circumferential surface of the opening and the inner circumferential surface of the housing part are on the same plane. The method according to claim 1 or 2, The openings form a plurality of opening rows, and the opening rows are arranged in parallel with each other. The method according to claim 1 or 2, The battery tray is a battery tray comprising a combination of a first tray having the inclined portion and a second tray having the opening. The method of claim 10, The said 2nd tray is replaceable, The battery tray characterized by the above-mentioned. The method according to claim 1 or 2, The opening is a battery tray, characterized in that the tapered surface is formed on the opposite side to the housing portion. The method according to claim 1 or 2, A through hole is formed in the housing, the electrode passing through the through hole; The battery tray which can accommodate the battery accommodated in the said accommodating part from the electrode of the said opening side. The battery tray of Claim 1 is used, The manufacturing method of the battery characterized by the above-mentioned.

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