JP4217263B2 - Battery tray - Google Patents

Description

  The present invention relates to a battery tray that stores batteries, for example, in a battery manufacturing process, and relates to a battery tray that can store various types of batteries having different thicknesses or outer diameters in one tray.

  In the battery manufacturing process, there is a process of proceeding with the battery stored in the tray. A tray is also used for delivery and storage between manufacturing processes. Patent Documents 1 and 2 propose battery trays that can reduce the weight while ensuring the necessary strength.

  Further, in the battery formation (charging) step, charging is performed in a state where a large number of batteries are stored in a tray and the electrodes are pressed against the upper and lower terminals of the battery. In this case, it is necessary to ensure the positional accuracy between the upper and lower terminals of the battery and the electrode and to perform reliable charging.

  FIG. 20A shows a plan view of an example of a conventional battery tray. This figure shows an example of a tray for a rectangular battery. A large number of battery storage portions 101 are provided in a rectangular battery tray 100. FIG. 20B shows an enlarged view of one battery storage unit 101. This figure shows a state in which the rectangular battery 102 (shaded portion) is stored.

Both ends 103 of the battery storage unit 101 are narrowed, and both ends of the rectangular battery 101 are engaged with this part. Thus, the square battery 102 can be stably placed on the battery storage unit 101. Therefore, in the chemical conversion process, the accuracy of the positional relationship between the upper and lower terminals of the rectangular battery 101 and the upper and lower electrodes for charging is ensured, and charging can be completed reliably.
JP 2000-53182 A JP 2002-362666 A

  However, the battery tray 100 as shown in FIG. 20 has a design in which the width of the both end portions 103 of the battery housing portion 101 is matched to the thickness of the rectangular battery 102 as described above. For this reason, it is necessary to prepare a dedicated tray for each rectangular battery having a different thickness. In this case, a mold for forming the tray is also dedicated for each tray, which is disadvantageous in terms of cost. Furthermore, in the manufacturing process, it is necessary to switch the corresponding tray according to the thickness of the rectangular battery, which is disadvantageous in terms of production efficiency. In addition, in Patent Documents 1 and 2, no special proposal has been made regarding a structure that can accommodate various types of batteries.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a battery tray that can store various types of batteries 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 that can store various types of batteries having different thicknesses or outer diameters in an upright state, and is provided on the back side of the opening. a housing portions, and a said housing sloped portion provided on the inner portion of the inclined portion spacing between the opposing are spread toward the opening, wherein the inclined portion, the battery of the various kinds The battery is placed by changing the height of the placement position, and the battery is housed in the housing part in a state surrounded by the opening and placed on the inclined part.

  According to the present invention, various types of batteries having different thicknesses or outer diameters can be accommodated in one tray.

  Since the battery tray according to the present invention includes the inclined portion in which the distance between the opposing portions is widened toward the opening, even in the case of a battery having a different thickness or outer diameter, the height of the placement position can be changed and It is possible to store various types of batteries with different thicknesses or outer diameters in one tray.

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

  Also. The inclined portion is a groove including inclined surfaces facing each other, and an interval between the inclined surfaces facing each other is preferably widened toward the opening. This configuration is suitable for storing rectangular batteries having different thicknesses.

  Moreover, when the storage state of the battery is viewed from the side facing the opening, the opening preferably includes a restriction surface that restricts movement of the battery in the width direction. According to this configuration, since movement of the battery in the width direction can be restricted, the battery can be stably stored in the width direction.

  In addition, when the storage state of the battery is viewed from the side facing the opening, it is preferable that the opening has a regulating surface that restricts 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 is maintained in a state in which the battery is rotated according to the increase in thickness on the side opposite to the regulating surface that regulates rotational movement. Can do.

  Moreover, it is preferable that the restriction surface for restricting the movement in the width direction and the restriction surface for restricting the rotational movement intersect at an obtuse angle.

The cross-sectional shape of the groove when the upright the battery on the groove, in a horizontal line across the portion above the bottom of the battery, of one of the inclined surface and the side surface of the battery facing the this the distance between the, to be smaller than the distance between the other of the inclined surface and the side surface of the battery opposite to this, it is preferable that the inclined surface that the counter is arranged. According to this configuration, it is possible to reduce rattling when a large-sized prismatic battery is stored, and stable storage becomes possible.

Moreover, it is preferable that the internal peripheral surface of the said opening and the internal peripheral surface of the said accommodating part exist on the same surface. According to this configuration, the integral molding of the tray is facilitated.

  Moreover, it is preferable that the said opening forms the some opening row | line | column and each said opening row | line | column is arrange | positioned in parallel.

  Moreover, it is preferable that the said battery tray is what combined the 1st tray which formed the said groove | channel, and the 2nd tray which formed the said opening. According to this configuration, the structure of the mold when the tray is resin-molded is simplified.

  The second tray is preferably exchangeable. According to this configuration, the range of the thickness of the battery that can be stored can be widened by exchanging the second tray with one having a different opening shape while sharing the first tray.

  Moreover, it is preferable that the opening has a tapered surface on the side opposite to the storage portion. According to this configuration, the battery can be easily stored.

  Further, it is preferable that a through hole is formed in the inner part of the storage part, and the battery stored in the storage part can be sandwiched between the electrode that has passed through the through hole and the electrode on the opening side. According to this configuration, the battery tray can be used in the chemical conversion step.

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

(Embodiment 1)
FIG. 1 is a diagram showing a lower tray among upper and lower battery trays according to an embodiment of the present invention. 1A is a plan view and FIG. 1B is a side view. The lower tray 1 is provided with a large number of battery storage portions 2, and each battery storage portion 2 can store one square battery.

  FIG. 2 shows an enlarged view of the battery housing part 2. 2A is a plan view, and FIG. 2B is a cross-sectional view taken along the line AA in FIG. In FIG. 1, the battery housing portion 2 is arranged to be inclined, but in FIG. 2, it is illustrated vertically for easy understanding. Moreover, the square battery 5 at the time of accommodation is shown by a two-dot chain line.

  In FIG. 2A, grooves 3 that are inclined portions are formed at both ends in the width direction (arrow a direction) of the battery storage portion 2 so as to sandwich the through hole 4. In the present embodiment, the groove 3 is not formed in the portion where the through hole 4 is formed. For this reason, the groove 3 in FIG. 2B shows the upper groove 3 among the grooves 3 sandwiching the through hole 4 in the illustration in FIG.

  In the second embodiment, a configuration in which the groove is not divided and a through hole is formed in the groove may be used as in the lower tray storage portion 21 shown in FIG.

  As shown in FIG. 2 (b), the groove 3 is formed on the back side (bottom surface side) of the battery housing portion 2, and is formed by forming an opposing inclined surface 3a and inclined surface 3b in a V shape. is there. The inclined surfaces 3 a and 3 b are formed so that the distance between the inclined surface 3 a and the inclined surface 3 b increases as it goes toward the surface of the lower tray 1. The bottom surface of the prismatic battery 5 is placed on the groove 3, and the position of the prismatic battery 5 in the height direction (arrow b direction) is determined by the groove 3.

  In addition, although the groove | channel 3 is illustrated in the example of V shape, the bottom part of the groove | channel 3 which the square battery 5 does not contact | abut may have a curved surface shape, and may contain the horizontal surface. In addition, a configuration including a curved surface is also conceivable for the inclined surface with which the prismatic battery 5 abuts. That is, the cross-sectional shape of the groove 3 is not limited to a complete V shape, and may include a portion formed so that the interval between the inclined surface 3a and the inclined surface 3b facing each other is widened.

  Each battery housing portion 2 is provided with a through hole 4. As shown in FIG. 2B, the through hole 4 is formed so as to penetrate the bottom surface of the lower tray 1. In the chemical conversion step, the prismatic battery 5 can be charged by passing an electrode through the through-hole 4 and pressing this electrode and another electrode lowered from the upper side against the upper and lower terminal portions of the prismatic battery 5. Details of the charging will be specifically described later.

  FIG. 3 is a view showing the upper tray. 3A is a plan view and FIG. 3B is a side view. The upper tray 6 is obtained by forming a large number of openings 7 in a flat plate member. When the lower tray 1 of FIG. 1 and the upper tray 6 of FIG. 3 are combined, one opening 7 corresponds to one battery storage portion 2 of the lower tray 1.

  FIG. 4 shows an enlarged view of the opening 7. 4A is a plan view, and FIG. 4B is a cross-sectional view taken along line BB in FIG. 4A. In FIG. 3, the opening 7 is arranged in an inclined manner, but in FIG. 4, the opening 7 is illustrated vertically for easy understanding. Moreover, the square battery 5 at the time of accommodation is shown by a two-dot chain line.

  As shown in FIG. 4B, the opening 7 is formed so as to penetrate the upper tray 6 in the thickness direction. Further, as shown in FIG. 4A, the portion surrounded by the pair of vertical surfaces 8, 9, the horizontal surfaces 10, 11, and the inclined surfaces 12, 13 is the opening 7, and the opening 7 is a polygon. It is formed into a 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 between the horizontal plane 10 and the inclined surface 12 and the angle between the horizontal plane 11 and the inclined surface 13 are obtuse angles. Specifically, these angles are preferably obtuse angles of 100 degrees or more and 150 degrees or less, respectively. In the present embodiment, the angle is 120 degrees.

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

  When the prismatic battery 5 is stored in the battery storage unit 2, the prismatic battery 5 is inserted into the battery storage unit 2 from the upper side of the opening 7 through the opening 7. In order to facilitate this insertion, a tapered surface 14 is provided above the opening 7. As shown in FIG. 4A, the position of the rectangular battery 5 is regulated by the horizontal surfaces 10 and 11 and the inclined surfaces 12 and 13. For this reason, the tapered surface 11 is preferably provided on at least each of these surfaces.

  FIG. 5 is a view showing a state in which the upper tray 6 and the lower tray 1 are combined. FIG. 5A is a plan view, and FIG. 5B is a side view. As shown in FIG. 5B, there is an upper tray 6 on the upper side of the lower tray 1, and in the illustration of FIG. 5A, there is a battery storage portion 2 below the opening 7 of the upper tray 6. become.

  Fig.6 (a) has shown the enlarged view of the opening 7 part in Fig.5 (a). FIG. 6B is a cross-sectional view taken along line CC in FIG. In FIG. 6A, the opening 7 portion is inclined, but is shown vertically in FIG. 6A for easy understanding. Moreover, the square battery 5 at the time of accommodation is shown by a two-dot chain line.

  One battery accommodating portion 2 corresponds to one opening 7. When the prismatic battery 5 is inserted from above the opening 7, the bottom surface of the prismatic battery 5 comes into contact with the inclined surfaces 3 a and 3 b of the groove 3, and the prismatic battery 5 is stored in the battery storage unit 2 in a state surrounded by the opening 7. Is done.

  In the present embodiment, the battery tray is divided into an upper tray 6 and a lower tray 1. According to such a configuration, the structure of the mold when resin molding is simplified. The upper and lower trays can be positioned by fitting positioning pins and positioning holes. When resin molding is performed, the positioning pin and the positioning hole may be integrally molded.

  Next, the battery chemical conversion step will be described. FIG. 7A is a plan view of a state in which the square battery 5 is stored in the battery storage unit 2. 7B and 7C are cross-sectional views taken along the line DD in FIG. 7A, FIG. 7B shows a state before charging, and FIG. 7C shows a state during charging. . As shown in FIG. 7 (a), when the prismatic battery 5 is stored, the prismatic battery 5 is surrounded by the opening 7, and as shown in FIG. 7 (b), the prismatic battery 5 has the inclined surface 3a of the groove 3, It is accommodated in the accommodating part 2 in the state contact | abutted to 3b.

  As shown in FIG. 7B, in the chemical conversion step, there are an upper electrode 15 and a lower electrode 16 above and below the prismatic battery 5, respectively. At the time of charging, the upper electrode 15 moves down and moves so as to approach the positive electrode terminal 17 of the rectangular battery 5. The lower electrode 16 ascends and passes through the through hole 4 and moves so as to approach the negative electrode terminal 18 of the prismatic 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 prismatic battery 5 upward, and the prismatic battery 5 is raised by this pressing. In this state, the prismatic battery 5 is charged, and after charging, the upper and lower electrodes 15, 16 move in the opposite direction to the above and are separated from the prismatic battery 5.

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

  FIG. 8 is a plan view of a state in which the rectangular battery 5 having a thickness of 4 mm is accommodated in the battery accommodating portion 2. 9A is a cross-sectional view taken along line EE in FIG. 8, and FIG. 9B is a cross-sectional view taken along line FF in FIG.

  As shown in part A of FIG. 8, the position of one end of the prismatic battery 5 is regulated by both the horizontal surface 10 and the inclined surface 12 of the opening 7. A state in which the position of the end portion of the prismatic battery 5 is regulated by the inclined surface 12 is shown in a portion C of FIG. As shown in part B of FIG. 8, the position of the other end of the prismatic battery 5 is regulated by both the horizontal surface 11 and the inclined surface 13 of the opening 7. A state in which the position of the end portion of the prismatic battery 5 is regulated by the inclined surface 13 is shown in a D portion of FIG. 9B.

  As shown in FIGS. 9A and 9B, the prismatic battery 5 is placed on the inclined surfaces 3a and 3b of the groove 3 having a V-shaped cross section. In this state, the two ridge lines at the bottom of the prismatic battery 5 are in linear contact with the inclined surfaces 3 a and 3 b of the groove 3. Since the prismatic battery 5 is placed on the groove 3, the position in the height direction (arrow b direction) is fixed, and the bottom of the prismatic battery 5 is at a height h1 from the bottom of the tray.

  When the prismatic battery 5 is placed on the groove 3, it is unstable to keep the upright state. However, as described above, the prismatic battery 5 is in the opening 7, and the prismatic battery 5 is restricted from moving in the arrow e direction by the inclined surface 12, and is restricted from moving in the arrow f direction by the inclined surface 13 (FIG. 8 and 9). As a result, the prismatic battery 5 can be kept upright without falling down.

  FIG. 10 is a plan view of a state in which a 5 mm thick rectangular battery 5 a is stored in the battery storage unit 2. 11A is a cross-sectional view taken along line GG in FIG. 10, and FIG. 11B is a cross-sectional view taken along line HH in FIG. The square battery 5a has a thickness t which is 1 mm larger than the square battery 5 having a thickness of 4 mm, but the width is the same.

  As shown in FIGS. 11A and 11B, the prismatic battery 5a is placed on the groove 3, and the bottom surface of the prismatic battery 5a is located at a height h2 from the bottom of the tray. The square battery 5 a having a thickness of 5 mm has a thickness t larger than that of the square battery 5 by 1 mm. Therefore, the height h2 in FIGS. 11 (a) and 11 (b) is higher than the height h1 in FIGS. 9 (a) and 9 (b). That is, since the groove 3 is V-shaped, even a rectangular battery having a different thickness can be placed on the groove 3 by changing the height of the placement position.

  As shown in part A of FIG. 10, the position of one end of the prismatic battery 5 is regulated by both the horizontal surface 10 and the inclined surface 12 of the opening 7. The state in which the position of the end portion of the prismatic battery 5 is regulated by the inclined surface 12 is shown in part C of FIG. As shown in part B of FIG. 10, the position of the other end of the prismatic battery 5 is regulated by both the horizontal surface 11 and the inclined surface 13 of the opening 7. A state in which the position of the end portion of the rectangular battery 5 is regulated by the inclined surface 13 is shown in a D portion of FIG.

  These states are the same as those of the rectangular battery 5 having a thickness of 4 mm described with reference to FIGS. However, the prismatic battery 5a is rotationally moved from the position of FIG. 8 due to the increased thickness compared to the prismatic battery 5. This will be specifically described with reference to FIGS.

  As shown in FIG. 10, the position of the rectangular battery 5a is restricted by the inclined surfaces 12 and 13 at a pair of diagonal positions. For this reason, the both ends of the prismatic battery 5a cannot rotate in the direction of the arrow d along the inclined surfaces 12 and 13. 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 prismatic battery 5a.

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

  Here, it is assumed that the two ridge lines at the bottom of the prismatic battery 5 a are placed in a state of being in linear contact with the inclined surfaces 3 a and 3 b of the groove 3. In this state, when the square battery 5a is rotated so as to be twisted in the direction of arrow c, the two ridge lines at the bottom of the square battery 5a move away from the inclined surfaces 3a and 3b of the groove 3, respectively. As a result, the state in which the two ridge lines at the bottom of the prismatic battery 5a are in linear contact with each of the inclined surfaces 3a and 3b is changed to a state of being in contact with each of the inclined surfaces 3a and 3b at a total of two points. Will do.

  That is, the state of FIG. 8 cannot be maintained because the prismatic battery 5a is thicker than the prismatic battery 5. However, as shown in FIG. 10, in a state where it rotates and moves in the direction of the arrow c by an angle θ1, and the contact state on the groove 3 at the bottom of the square battery 5a is changed from line contact to point contact, there is no stability. Can keep the state. The angle θ1 is the rotation angle of the center line in the width direction of the rectangular battery. In this example, θ1 was 0.57 °.

  In FIG. 10, for convenience of illustration, the angle θ1 indicates an angle formed between the vertical line and the side surface of the prismatic battery. The same applies to the angles θ2 and θ3 in FIG.

  FIG. 12A is a plan view of a state in which a 6 mm-thick square battery 5 b is stored in the battery storage unit 2. FIG. 12B is a plan view of a state in which the square battery 5 c having a thickness of 8 mm is stored in the battery storage unit 2. As described above, the rectangular batteries 5b and 5c having an increased thickness are rotated and stored in the storage unit 2. The greater the angle, the greater the rotation angle. In the case of the prismatic 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, various types of batteries having different thicknesses can be stored, and each time the thickness of the stored battery increases, the stored battery corresponds to the increase in thickness. A stable upright state can be maintained in a state of rotational movement.

  As described above, it has been described that the battery tray according to the present embodiment can accommodate various types of prismatic batteries having different thicknesses. As described above, when a prismatic battery with an increased thickness is accommodated, the rotation angle of the prismatic battery increases in accordance with the increase in thickness.

  However, the central part of the rectangular battery with which the upper and lower electrodes 15 and 16 (FIG. 7) abut is in the vicinity of the rotation axis. For this reason, even if a rotation angle increases, the area of the contact part of the upper and lower electrodes 15 and 16 in a center part and each terminal of a square battery is the same, or hardly changes. Therefore, even if it is rotated and moved, the contact area between the upper and lower electrodes 15 and 16 and the terminals of the prismatic battery is secured, and reliable charging can be performed in the chemical conversion step.

  In addition, the battery tray according to the present embodiment can accommodate rectangular batteries having different thicknesses, but the thickness range is limited by the shape of the opening of the upper tray. A plurality of types of upper trays having different opening shapes may be prepared in order to cope with a wider range of prismatic battery thicknesses. In this way, the thickness range of the prismatic battery that can be accommodated can be widened by simply replacing the upper tray while sharing the lower tray.

  Similarly, in order to accommodate a wide range of square battery width dimensions, the use of an upper tray having a different opening shape in the width direction makes it possible to widen the range of width of the prismatic battery that can be accommodated. Furthermore, an upper tray corresponding to thickness and width may be used in combination.

  In addition, although the battery tray which concerns on this Embodiment demonstrated the example in which the rotation angle of a square battery becomes zero when a square battery with a thickness of 4 mm was accommodated, it is not restricted to this, If it determines suitably Good.

  Moreover, although the battery tray which concerns on this Embodiment was demonstrated in the example used in a chemical conversion process, the use is not restricted to this. For example, it can be used when delivering a battery between manufacturing processes, or can be used for storing a battery.

  In addition, as described above, in the battery tray according to the present embodiment, the shape of the opening of the upper tray maintains the upright state of the prismatic battery even when the prismatic batteries having different thicknesses are accommodated, and is square with the electrode during charging. The terminal part of the battery can be contacted. On the other hand, when the positional accuracy of the rectangular battery required at the time of storage is moderate, the opening shape of the upper tray is not limited to the shape of the present embodiment. For example, while the V-shaped groove shape of the lower tray is provided, the shape of the opening of the upper tray may be a shape in which the inclined surface is eliminated and the size of the battery in the thickness direction is narrowed. Even in such a tray, various types of prismatic batteries having different thicknesses can be accommodated.

(Embodiment 2)
Hereinafter, Embodiment 2-5 will be described with reference to the drawings. In the following description, only the parts different from the first embodiment will be described. The other configuration is the same as that of the first embodiment, and a duplicate description is omitted.

  FIG. 13 is a plan view showing a lower tray among the upper and lower battery trays according to the second embodiment. Since the shape of the side surface is the same as that of FIG. In FIG. 1, the battery storage unit 2 is disposed to be inclined with respect to the outer peripheral side of the lower tray 1. The battery storage portions 2 are arranged in rows in the direction of the inclination, and the rows are parallel to each other.

  On the other hand, in the configuration of FIG. 13, the rows of the battery storage units 21 arranged in rows are parallel to each other as in FIG. 1, but each row is on the outer peripheral side of the lower tray 20. Are also arranged in parallel.

FIG. 14 is a plan view showing an upper tray 22 corresponding to the lower tray 20 of FIG.
The shape of the side surface is the same as that in FIG. The upper tray 22 is the same as the upper tray 6 in FIG. 3 except for the arrangement of the openings. The opening 23 in FIG. 14 is disposed so as to correspond to the battery storage portion 21 when the upper tray 22 is placed on the lower tray 20 in FIG. 13. That is, each row of the openings 7 is arranged to be parallel to the outer peripheral side of the upper tray 22.

  In the present embodiment, the number of batteries stored per unit area is reduced as compared with the tray of the first embodiment, but the arrangement of the battery storage portion 21 and the opening 23 is simplified. For this reason, setting of equipment for installing the tray, equipment for putting in and out the battery in the tray, and the like may be facilitated.

(Embodiment 3)
Although the trays of the first and second embodiments are separated into an upper tray and a lower tray, the tray of the third embodiment is an integrated upper and lower tray. 15A is a plan view showing the opening 24 portion, FIG. 15B is a cross-sectional view taken along the line II of FIG. 15A, and FIG. 15C is a line JJ of FIG. 15A. FIG.

  If the upper and lower trays are formed integrally with the configuration as shown in FIG. 6B, it is difficult to extract the mold in the storage unit 2 from the storage unit 2. In the cross-sectional view of FIG. 15B, the inner peripheral surface of the opening 24 and the inner peripheral surface of the storage portion 25 are on the same plane. Similarly, also in the cross-sectional view of FIG. 15C, the inner peripheral surface of the opening 24 and the inner peripheral surface of the storage portion 25 are on the same plane. With this configuration, it is easy to extract the mold from the storage unit 25, and a tray in which the upper and lower trays are integrated can be easily formed.

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

(Embodiment 4)
FIG. 16 is a sectional view of the tray according to the fourth embodiment. This figure corresponds to FIG. 9A which is a cross-sectional view taken along the line EE of FIG. Hereinafter, a description will be given while comparing with the first embodiment. The rectangular battery 5 in FIG. 16 is the same as the rectangular battery 5 in FIG. Two ridge lines at the bottom of the prismatic battery 5 are in linear contact with the inclined surfaces 26a and 26b of the groove 26, and the prismatic battery 5 is placed at a height h1 from the bottom of the tray. This mounting state is the same as that of the prismatic battery 5 of FIG. 9A of the first embodiment.

  The configuration of FIG. 16 differs from the configuration of FIG. 9A in the setting of the inclination angles of the inclined surfaces 26a and 26b. In FIG. 16, when the battery 5 is erected on the groove 26, the inclined surface so that the distance between the inclined surface 26 b and the battery 5 is smaller than the distance between the inclined surface 26 a and the battery 5. 26a and 26b are arranged.

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

  In contrast, in FIG. 16, a gap is similarly formed between the ridge line 26 b at the bottom of the prismatic battery 5 a and the inclined surface, but the size is smaller than the gap in FIG. In FIG. 16, a square battery 5b is the same battery as the square battery 5b shown in FIG. The square battery 5b is placed at a height h3 from the bottom of the tray. As a result, the gap between the ridge line of the prismatic battery 5b and the inclined surface 26b is larger than when the prismatic battery 5a is placed. However, this gap is smaller than the gap when the prismatic battery 5b is placed in the configuration of FIG.

  As described above, according to the configuration of FIG. 16, when a thick rectangular battery is placed, the gap is made smaller between the ridge line of the rectangular battery and the inclined surface 26 b than the configuration of FIG. 11. be able to. This is because the inclined surfaces 26a and 26b are arranged so that the distance between the inclined surface 26b and the battery 5 is smaller than the distance between the inclined surface 26a and the battery 5 as described above. .

  That is, according to the present embodiment, an increase in the gap between the ridge line at the bottom of the prismatic battery and the inclined surface can be suppressed even when the thickness of the prismatic battery to be accommodated increases. As a result, it is possible to reduce the shakiness when storing a rectangular battery having a large thickness, and stable storage becomes possible.

  In the above description, the section corresponding to the section of the EE line in FIG. 8 and the section of the GG line in FIG. 10 has been described as an example, but the section corresponding to the section of the FF line in FIG. The same applies to the parts to be performed. However, in this case, since the inclined surface in contact with the bottom of the rectangular battery 5b is on the opposite side as shown in FIGS. 8B and 11B, the inclined surface 26a shown in FIG. The setting of the inclination angle of 26b is also reversed.

(Embodiment 5)
FIG. 17 is a plan view showing a lower tray among the upper and lower battery trays according to the fifth embodiment. Since the shape of the side surface is the same as that of FIG. 18 is a plan view showing an upper tray 32 corresponding to the lower tray 30 in FIG. The shape of the side surface is the same as that in FIG. In the example of FIGS. 17 and 18, a cylindrical battery having a different outer diameter can be stored by making the inclined portion at the back of the storage portion 31 of the lower tray 30 into a conical surface and making the opening 33 of the upper tray 33 circular. It is a thing.

  Since the mounting portion has a conical surface, it is possible to store cylindrical batteries having different outer diameters in this embodiment. This will be specifically described with reference to FIG. 19 is a cross-sectional view of the state in which the lower tray 30 of FIG. 17 and the upper tray 32 of FIG. 18 are combined. An inclined portion 34 is formed at the back of the storage portion 31. In the example of FIG. 19, the inclined portion 34 is a conical surface. The entire circumference of the bottom portion of the stored cylindrical battery 35 a 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 stored, the position of the bottom is higher than when the cylindrical battery 35a is stored, but the entire circumference of the bottom is in contact with the inclined portion 34, and is the same as the cylindrical battery 35a. Can be stored. The cylindrical battery that can be stored is considered to be, for example, a battery of at least a single type (diameter 34.2 mm) to a single type (diameter 10.5 mm).

  17-19, although the example which made the inclination part the conical surface demonstrated, it is not restricted to this. In other words, the inclined portion 34 only needs to have a shape that expands toward the opening 33 and can support the bottom portion of the battery at at least three points, for example, a pyramid surface. Further, the inclined portion 34 is not limited to a planar shape, and for example, three or more ribs may be inclined. Similarly, the opening 33 of the upper tray 32 is not limited to a circular shape, and may be, for example, a triangle or more.

  In the present embodiment also, the upper and lower trays can be integrally formed by making the inner peripheral surface of the opening 33 and the inner peripheral surface of the storage portion 31 on the same plane, as in the third embodiment. .

  As described above, according to the present invention, since various types of batteries having different thicknesses or outer diameters can be accommodated in one tray, the battery tray according to the present invention is a tray for charging, for example, in a chemical conversion process. It is useful as a tray when delivering between processes, or as a tray for storing batteries.

(A) is a top view which shows a lower tray in one embodiment of this invention, (b) is a side view. (A) is an enlarged plan view of a battery accommodating part, (b) is sectional drawing in the AA line of (a). (A) is a top view which shows an upper tray, (b) is a side view. (A) is an enlarged plan view of an opening, (b) is sectional drawing in the BB line of (a). (A) is a top view of the state which combined the upper tray and the lower tray, (b) is a side view. (A) is an enlarged view of the opening part in Fig.5 (a), (b) is sectional drawing in CC line of (a). (A) is a plan view of a state in which a square battery is housed in the battery housing part in the chemical conversion step, (b) is a sectional view of (a) in a state before charging, and (c) is a state of (a) during charging. Sectional drawing. The top view of the state which accommodated the square battery of thickness 4mm in a battery accommodating part. (A) is sectional drawing in the EE line | wire of FIG. 8, (b) is sectional drawing in the FF line | wire of FIG. The top view of the state which accommodated the square battery of thickness 5mm in a battery accommodating part. (A) is sectional drawing in the GG line of FIG. 10, (b) is sectional drawing in the HH line of FIG. (A) is a top view of the state which accommodated the square battery of thickness 6mm in the battery accommodating part, (b) is a top view of the state which accommodated the square battery of thickness 8mm in the battery accommodating part. The top view which shows the lower tray which concerns on Embodiment 2 of this invention. The top view which shows the upper tray which concerns on Embodiment 2 of this invention. (A) is a top view which shows the opening 24 part, (b) is sectional drawing in the II line of Fig.15 (a), (c) is sectional drawing in the JJ line of Fig.15 (a). Sectional drawing of the tray which concerns on Embodiment 4 of this invention. The top view which shows the lower tray which concerns on Embodiment 5 of this invention. The top view which shows the upper tray which concerns on Embodiment 5 of this invention. Sectional drawing of the tray which concerns on Embodiment 5 of this invention. (A) is a top view of an example of the conventional battery tray, (b) is an enlarged view of one battery storage unit 101.

Explanation of symbols

1, 20, 30 Lower tray 2, 21, 25, 31 Storage portion 3, 26 Groove 3a, 3b, 26a, 26b Inclined surface 4 Through hole 5, 5a, 5b, 5c Rectangular battery 6, 22, 32 Upper tray 7, 23, 24, 33 Opening 8, 9 Vertical surface 10, 11 Horizontal surface 12, 13 Inclined surface 14 Tapered surface 15 Upper electrode 16 Lower electrode 35a, 35b Cylindrical battery

Claims (13)

A battery tray capable of storing various types of batteries with different thicknesses or outer diameters in an upright state ,
An opening, a storage part provided on the back side of the opening, and an inclined part provided in the back part of the storage part,
An interval between the inclined portions facing each other is widened toward the opening,
The inclined portion is to place the various types of batteries by changing the height of the placement position,
The battery tray is housed in the housing part in a state surrounded by the opening and placed on the inclined part.   2. The battery tray according to claim 1, wherein the battery tray is a battery tray that stores a cylindrical battery, and the inclined portion is formed so as to support a bottom portion of the cylindrical battery at at least three points.   2. The battery tray according to claim 1, wherein the inclined portion is a groove including opposing inclined surfaces, and an interval between the opposing inclined surfaces is widened toward the opening.   4. The battery tray according to claim 3, wherein the opening includes a restriction surface that restricts movement of the battery in the width direction when the storage state of the battery is viewed from the side facing the opening. 5.   5. The restriction surface for restricting rotational movement of the battery is located at a pair of diagonal positions of the battery when the battery is housed from the side facing the opening. The battery tray as described in.   The battery tray according to claim 5, wherein a restriction surface that restricts movement in the width direction and a restriction surface that restricts rotational movement intersect at an obtuse angle. Cross-sectional shape of the groove when the upright the battery on the groove, in a horizontal line across the battery, the distance between one of the inclined surface and the side surface of the battery facing the other hand, the other of said to be less than the distance between the side surface of the battery facing inclined surface and this, battery tray according to any one of the opposing claims 3 the inclined surface is disposed to 6.   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 storage portion are on the same plane.   The battery tray according to claim 1, wherein the opening forms a plurality of opening rows, and the opening rows are arranged in parallel.   The battery tray according to any one of claims 1 to 9, wherein the battery tray is a combination of a first tray in which the inclined portion is formed and a second tray in which the opening is formed.   The battery tray according to claim 10, wherein the second tray is replaceable.   The battery tray according to any one of claims 1 to 11, wherein the opening has a tapered surface formed on a side opposite to the storage portion.   The through hole is formed in the back part of the said accommodating part, The battery accommodated in the said accommodating part can be pinched | interposed by the electrode which let the said through hole pass, and the electrode of the said opening side. The battery tray according to any one of the above.

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