JP5091427B2 - Battery holder and battery pack - Google Patents

Description

  The present invention relates to a battery holder that holds both ends of a plurality of cylindrical batteries arranged in parallel, and a battery pack using the battery holder.

  In recent years, in automobiles and the like, energy saving has been advanced by adopting a hybrid system using a secondary battery, and the performance of a battery pack using the secondary battery has been dramatically improved along with the progress. As a result, in elevators, farm equipment, emergency power supplies, etc., an increasing number of battery packs using the required number of secondary batteries are used for backup power supplies, hybrid systems, etc. It is being sought to adopt it.

  For example, as a backup power source for an elevator, as shown in FIG. 7, a thin rectangular parallelepiped case body 51 is formed by standing side frames 53 on both sides of a support plate 52 provided with ventilation openings (not shown). The case body 51 is vertically attached to a frame (not shown) in the elevator hoistway, and 16 batteries 54 in which 6 cells are connected in series are arranged in a lattice shape (8 rows, The upper and lower ends of the batteries 54 are held by the upper and lower holding plates 55 and 56, and are sequentially electrically connected by the connecting members 57. A receiving tray 58 that is to be received in the event that the electrolyte solution leaks is disposed below the lower holding plate 56. The receiving tray 58 is formed of a strong member and is attached to the case body 51. Weight (about 7 kg) is supported by a receiving tray 58 via a lower holding plate 56 and a cradle (not shown), and an opening facing the support plate 52 of the case body 51 is attached to a cover (not shown). ) Is known.

  In addition, a plurality of cells arranged in a lattice form in a battery holder comprising a pair of thick square support plates having a substantially square shape, and battery support holes having a predetermined depth into which the end portions of the batteries are fitted are formed on both support plates. A battery is known in which both ends of the battery are held and vent holes are provided at appropriate positions between the battery holding holes arranged in each support plate (see, for example, Patent Document 1).

  In addition, a plurality of batteries are arranged in parallel with a suitable gap, and both ends are sandwiched between sandwiching plates, and a part of the outer periphery of the battery is supported by support pillars arranged between the batteries. There is known an assembled battery in which ventilation holes are provided at both ends and a shielding part is provided in an intermediate part so that cooling air passing through the ventilation holes is diffused and distributed in the gap between the batteries (for example, see Patent Document 2). ).

In addition, a plurality of holding ribs are provided on the upper lid, the middle frame, and the lower lid constituting the case to support a plurality of batteries in a state of being arranged in parallel with an appropriate gap, and a ventilation hole formed in the upper lid and the lower lid There is known a battery module that cools a battery by circulating cooling air through the battery (for example, see Patent Document 3).
Japanese Patent Laid-Open No. 9-7564 JP 2001-291533 A JP 2001-325996 A

  However, in the case where the order quantity is small, such as the above-described elevator backup power source, and the mass production is not possible, the upper and lower holding plates 55 and 56 as shown in FIG. If you try to make it with a product, it is extremely expensive because the molding die is extremely high, and therefore it is made by cutting a resin plate with insulation, but because it is made by cutting one product at a time, There is still a problem of high costs. In addition, when the number of the batteries 54 to be mounted changes, it is necessary to produce different holding plates 55 and 56 for each number of batteries, which also raises a problem that the cost increases. In addition, the support structure of the battery 54 has a complicated configuration using a tray 58 and a cradle (not shown) that require strength, and thus there is a problem that the cost is increased. Furthermore, when the case body 51 is attached to a frame (not shown), the ventilation opening provided in the support plate 52 may be blocked by the attachment plate due to restrictions on the position of the attachment plate. There is also a problem that the battery 54 at the portion facing the mounting plate may be insufficiently cooled.

  In addition, the battery holder described in Patent Document 1 merely holds both end portions of a plurality of batteries arranged in a lattice shape with a thick plate-like support, and when combining a plurality of battery holders, There is a problem that the case body having a complicated structure for housing and fixing and supporting is required, and there is a problem that the cost is high, and since the batteries are arranged in a lattice shape, the space formed between the batteries is provided with a cooling ventilation passage However, there is a problem that the space is uselessly large, the space efficiency is poor, and the output efficiency per volume is poor.

  In addition, when the assembled battery described in Patent Document 2 is applied to a battery pack for use as shown in FIG. 7, the sandwiching plate that holds both ends of the battery is a single plate. There is a problem that it is necessary to process and the cost is high.

  In addition, when the battery module described in Patent Document 3 is applied to a battery pack for use as shown in FIG. 7, it is necessary to produce an upper lid, a middle frame, and a lower lid constituting the case for each product when not in mass production. There is a problem of high costs.

  In view of the above-described conventional problems, the present invention has versatility that can be individually applied to low-volume production devices and apparatuses with the same standard, thereby reducing costs as a mass-produced molded product and It can easily cope with changes in the number, can support the battery firmly with a simple structure, can improve the output efficiency per volume of the battery pack, and always keeps the cooling performance of the battery high. An object of the present invention is to provide a battery holder and a battery pack using the same.

The battery holder of the present invention is composed of a pair of holder members that are arranged to face each other and are provided with holding portions that fit and hold end portions of cylindrical batteries, and each holder member has a front shape. A plurality of holding portions are arranged in parallel to at least one of the parallel sides of the parallelogram of the holder member, and the end surfaces forming the one pair of parallel sides are arranged on the holder member. The end surfaces forming the other pair of parallel sides in the parallelogram are connection end surfaces provided with fixing means for connecting members to be connected in a state where the holder members are arranged in parallel. The connecting end face is provided with a lead-out groove for leading the lead wire from the sensor attached to the battery to the outside .

According to this configuration, since both ends of the battery are held by the battery holder composed of a pair of holder members, the required number of battery holders can be arranged in parallel and fixed to the connecting member as necessary. Arbitrary number of batteries can be firmly supported with a simple structure, and even if the number of batteries required for various devices and devices is different, it can be handled by simply changing the number of batteries used using the same standard holder member Therefore, even if the various equipment and devices to be applied are individually produced in small quantities, the holder member is versatile, so it is possible to reduce the cost by configuring it with an injection molded product of insulating synthetic resin. Can be achieved. In addition, since the cylindrical batteries are arranged in parallel in a slanted lattice shape with the battery held by the holder member, no useless space is formed between the batteries, and the output efficiency per volume can be improved. Therefore, the cooling performance of the battery can always be kept high. Furthermore, if a lead-out groove for leading the lead wire from the sensor attached to the battery to the outside is provided on the connection end surface, the lead wire can be easily joined along the connection end surface of the holder member to the connection end surface and the connection end surface. The lead wire can be pulled out without being caught between the connecting members, and the lead wire can be wired with good workability without being damaged.

  In addition, if the joint end face is provided with a recess for forming a ventilation path between the joint end faces in a state where the holder members are arranged in parallel, cooling air can be introduced also from the holder placement faces on both sides holding both ends of the battery. Even when the arrangement structure is such that the opening between the holders is closed, the battery can be reliably cooled by supplying cooling air to the battery.

  In addition, the holding portion of the pair of holder members has a receiving surface with which the end face of the battery abuts, and when a fitting hole into which the terminal protruding at both ends of the battery is fitted is formed through this receiving face, the fitting hole is formed. Since the penetrating terminals are connected by a connecting member to connect the batteries, even if the electrolyte leaks from the battery, the creepage distance from the leaked part at one end of the battery to the current-carrying path by the connecting member Since it is large, it is possible to suppress the occurrence of a short circuit due to leakage.

  The terminals protruding from both ends of the battery have different shapes depending on the polarity, and the fitting holes of the holder member have the same shape as the terminals to be fitted, and the fitting holes of the terminals having different shapes to be connected to each other are in the same direction. When arranged adjacent to each other, there is no risk of connecting the same polarity when connecting battery terminals, there is no risk of short circuiting due to carelessness during connection work, ensuring good workability and safety. it can.

  Further, when both end portions of the joining end surface are configured as opposed surfaces perpendicular to the connecting end surface, and the holder member is disposed in a normal posture when the holder members are arranged in parallel on the opposed surface. If the concave and convex portions that are only fitted and engaged with each other are provided, the holder members are arranged in parallel in a normal posture by arranging the concave and convex portions in parallel so that the concave and convex portions are fitted and engaged with each other. When connecting battery terminals between holder members, there is no risk of connecting the same poles, and there is no risk of short-circuiting due to carelessness during connection work, ensuring good workability and safety. .

Further, the portion adjacent to the connecting end face of each holding portion of the holder member, the arc brim to continuous waveform shape in the parallel direction when arranged in parallel holder member is protruded, event as described above Even when the electrolyte leaks, the electrolyte can be smoothly flowed along a guide path formed by a circular arc ridge that is substantially continuous in a wave shape, and can be accommodated in an appropriately arranged liquid receiving container. It is possible to easily and reliably prevent the electrolytic solution from flowing toward the energization path or flowing out.

The battery pack of the present invention, there is provided a battery pack having a plurality of unit battery blocks composed of the batteries holder with a plurality of batteries having both ends are held by the battery holder, a battery holder, facing each other And a pair of holder members each provided with a holding portion for fitting and holding an end portion of a cylindrical battery, and each holder member has a substantially parallelogram shape and a front portion of the holder member. A joining end face for joining a plurality of holding portions in parallel to at least one of the parallel pair of parallelograms and joining the end faces forming the one pair of parallel sides when the holder members are arranged in parallel. and then, the end face forming the other pair of parallel sides of the parallelogram, the connecting end face provided with fixing means of the connecting member for connecting while juxtaposed holder members, each of the holders The first connecting rail portion for fixing one connecting end surface of the member is fixed in parallel on a support plate having a ventilation opening in a region facing the battery, and the other connecting end surface of each holder member is fixed. The exhaust fan is disposed on a cover portion that is provided integrally with the connecting member having the second connecting rail portion or is attached as a separate member and covers the battery.

  According to this configuration, the required number of unit battery blocks are arranged in parallel on the support plate, the connecting member is arranged thereon, and the first and second connecting rail portions of the support plate and the connecting member are respectively connected to the holder members. By fixing the connection end face, a simple battery pack structure including a plurality of holder members, a support plate, and a connection member, and a battery pack that securely holds each battery can be configured by assembling work, and unit battery blocks arranged in parallel Since the battery pack having a desired output voltage can be configured only by arbitrarily changing the number of the battery packs, battery packs having various output voltage specifications can be provided at low cost. In addition, when the exhaust fan arranged in the cover part on the connecting member side is operated, cooling air is sucked from the ventilation openings of the support plate, passes through the gaps between the cells arranged in a diagonal grid, and passes through the inside of the cover part. Then, since the cooling air is distributed in contact with each battery evenly by being discharged to the outside, each battery can be effectively cooled. In addition, when an air passage is provided between the joining end faces of the holder member, the battery pack can be placed between the holder members even when the battery pack is placed in a state where a part of the vent opening of the support plate is closed. By introducing the cooling air through the ventilation path, the cooling air can be supplied to the battery facing the closed portion of the ventilation opening to reliably cool the battery.

  The connecting member covers the outer surface of each holder member of all the unit battery blocks and is fixed to the support plate, and includes a connecting frame having an opening between the holder members, and an exhaust fan is disposed on the opening of the connecting frame. When the cover member is detachably attached, the connection path between the battery terminals on the outer surface of the holder member is covered with the connecting frame, so the cover is covered when performing maintenance work. By removing the member and working, there is no fear that the worker will come into contact with the energization path and get an electric shock, and the work can be performed safely.

According to the battery holder and the battery pack of the present invention, a desired number of batteries can be firmly fixed with a simple structure by arranging a required number of holder members for holding both ends of the battery in parallel and fixing the holder members to the connecting member. Insulating synthetic resin injection-molded products that can be supported and compatible with various devices and devices that require a different number of batteries by changing the number of holder members of the same standard. It is possible to reduce the cost by mass-producing and configuring the battery, and since the cylindrical batteries are arranged in parallel in a slanted lattice with the battery held by the holder member, there is wasted space between the batteries. not formed, it is possible to improve the output efficiency per volume, so uniformly cooling air impinges on the battery can always maintain a high cooling performance of the battery, further, the connecting end face, attached to the battery By providing a lead-out groove for leading the lead wire from the sensor to the outside, the lead wire can be easily bitten along the connecting end surface of the holder member and between the connecting end surface and the connecting member joined to the connecting end surface. It can be pulled out without fear, and the effect of being able to wire with good workability without damaging the lead wire is exhibited.

  Hereinafter, an embodiment of a battery holder of the present invention and a battery pack using the same will be described with reference to FIGS.

  In FIG. 1, reference numeral 1 denotes an elongated cylindrical battery in which a plurality (four in the illustrated example) of cylindrical cells are connected in series to form a module. Positive and negative terminals 2 and 3 are provided at both end faces. Projected. These terminals 2 and 3 have different shapes. In the illustrated example, the terminal 2 on one pole is formed in a hexagonal shape, and the terminal 3 on the other pole is formed in a quadrangle with corners cut. A screw hole 4 is provided in the center of the end face of both terminals 2 and 3 for fastening and fixing the connection member 5 for electrically connecting the terminals 2 and 3 with bolts 6.

  Reference numerals 7 and 8 denote a pair of holder members that are arranged to face each other and hold both ends of the battery 1, and the holder members 7 and 8 constitute a battery holder 9. As shown in FIG. 1B, the unit battery block 10 is configured by holding a plurality of batteries 1 in the battery holder 9. In the battery pack 11 shown in FIGS. 4 and 5, as shown in FIG. 1 (c), a large number of batteries 1 are housed and arranged in a state where a plurality of unit battery blocks 10 are arranged in parallel. .

  As shown in FIGS. 2 (a) and 3 (a), the shape of both holder members 7 and 8 is a substantially parallelogram whose frontal shape is a parallelogram indicated by phantom lines, and its left and right inclinations. The end face forming the parallel side constitutes the joining end face 12 to be joined when the holder members 7 and 8 are arranged in parallel, and the end face forming the upper and lower horizontal parallel sides is in a state where the holder members 7 and 8 are arranged in parallel. A connecting end face 13 to be connected is configured. At both ends of each connecting end face 13, nuts 14, which are fixing means for connecting members (described later) for connecting the holder members 7 and 8 arranged in parallel to each other, are embedded.

  The upper and lower end portions of the joining end surfaces 12 of the holder members 7 and 8 are constituted by a facing surface 15 perpendicular to the connecting end surface 13, and when the holder members 7 and 8 are arranged in parallel on the facing surface 15. In addition, an engagement recess 16 and an engagement projection 17 are provided to be fitted and engaged with each other only when the holder members 7 and 8 are arranged in a regular posture. That is, a pair of engaging recesses 16 are provided at the upper and lower ends of the joining end surface 12 on one side, and a pair of engaging projections 17 are provided at the upper and lower ends of the joining end surface 12 on the other side. Further, a concave portion 18 is provided between the joint end surfaces 12 and 12 with the holder members 7 and 8 arranged in parallel between the upper and lower opposing surfaces 15 of the joint end surface 12.

  A plurality (two in the illustrated example, two each) of the holder members 7 and 8 are provided in parallel with the joining end surface 12 and the connecting end surface 13 on the inner surfaces in the thickness direction (see FIGS. 2C and 3C). , A total of four) holding portions 20 are arranged in an oblique grid at appropriate intervals, and each holding portion 20 is configured to hold the end portion of the battery 1. Each holding portion 20 has a receiving surface 21 with which the end surface of the battery 1 abuts, and fitting holes 22 and 23 through which the terminals 2 and 3 protruding at both ends of the battery 1 are fitted are formed through the receiving surface 21. Has been. In addition, an arc rod 24 that is substantially continuous in a wave shape in the parallel direction when the holder members 7 and 8 are arranged in parallel is projected from a portion adjacent to the connecting end face 13 of each holding portion 20.

  In both holder members 7 and 8, different fitting holes 22 and 23 are adjacent to each other in the vertical direction, and the same fitting holes 22 and 22, or 23 and 23 are adjacent to each other in the left and right direction, and one holder member 7 (see FIG. 2), the fitting holes 22, 22 are in the lower part, the fitting holes 23, 23 are in the upper part, and in the other holder member 8 (see FIG. 3), the fitting holes 22, 22 are in the upper part. The holes 23, 23 are arranged so as to be located at the lower part.

  Shallow grooves 25 for engaging the connecting members 5 between the fitting holes 22 and 23 are formed on the outer side surfaces in the thickness direction of both the holder members 7 and 8 (see FIGS. 2B and 3B). Is formed. Further, a surrounding wall 26 is formed so as to protrude so as to surround the shallow groove 25 with a necessary gap, and the connection member 5 and the head of the bolt 6 that fastens and fixes the connection member 5 are accommodated in the interior, so that the connection work can be performed. This prevents a tool or the like from coming into contact with an electric shock or short circuit. The shallow groove 25 and the surrounding wall 26 are formed so as to be inclined in opposite directions by the holder member 7 and the holder member 8 so that the batteries 1 are sequentially connected in series by the connection member 5.

  On the connecting end face 13 of both the holder members 7 and 8, a lead-out groove 27 is formed for drawing a lead wire from a temperature sensitive element such as a thermistor or a thermal protector attached to the battery 1 to the outside. Moreover, both the holder members 7 and 8 are comprised by the injection molded product of the insulating synthetic resin. As the insulating synthetic resin, materials that are excellent in flame retardancy, alkali resistance, moldability and can ensure strength, such as polyphenylene ether and ABS resin, are suitable.

  Next, a battery pack 11 configured by accommodating and arranging a plurality of the unit battery blocks 10 will be described with reference to FIGS.

  The battery pack 11 includes a plurality of unit battery blocks 10 arranged in parallel on the support plate 31 and a connecting frame 32 that covers the periphery of the unit battery blocks 10 including the outer surfaces of the holder members 7 and 8 on both sides. It is fixed to the support plate 31 and the upper surface of the connecting frame 32 is covered with a cover member 33.

  The support plate 31 includes a first connection rail portion 35 that fastens and fixes the connection end surfaces 13 below the holder members 7 and 8 on both sides of each unit battery block 10 with bolts 34, and the battery 1 between them. A ventilation opening 36 is provided in a range facing the arrangement region, and a ventilation plate 37 such as a punching metal is attached to the ventilation opening 36.

  The connection frame 32 is composed of an inverted L-shaped rectangular frame body having second connection rail portions 38 for fastening and fixing the connection end surfaces 13 above the holder members 7 and 8 with bolts 34 on both sides thereof. An attachment flange 39 for fixing to the support plate 31 is provided, and is fastened and fixed to the support plate 31 with fixing bolts 40 and nuts 41 planted on the support plate 31. The connecting frame 32 is configured to form an appropriate space 42 outside the holder members 7 and 8 on both sides of the unit battery block 10, and this space 42 constitutes a wiring space for leads from power lines, sensors, and the like. Yes. When the ventilation opening 36 of the support plate 31 is shielded, openings (not shown) are appropriately formed on both side surfaces of the connecting frame 32 corresponding to the shielding region, so that the space 42 introduces cooling air. It is configured to function as a space.

  The cover member 33 is provided with a required number (four in the illustrated example) of exhaust fans 43 at appropriate intervals corresponding to the arrangement area of the battery 1. The cover member 33 is detachably mounted by fastening mounting flanges 44 provided on both sides to the upper surface of the connection frame 32 with mounting screws 45. The cover member 33 may be provided integrally with the connection frame 32. However, when the cover member 33 is detachably mounted, the operator can remove the cover member 33 alone during maintenance or the like, so that the operator can connect the power supply path. You can work safely without fear of touching.

  In the battery pack 11 of the present embodiment, as shown in FIG. 5, the support plate 31 and the connection frame 32 are extended from the arrangement region of the plurality of unit battery blocks 10 to one end side thereof, and are inside a control space. 46 is formed. A mounting board 47 is fixed to the support plate 31 in the control space 46, and a required control device 48 is attached to the mounting board 47.

  According to the above configuration, since the unit battery block 10 that holds both ends of the battery 1 is configured by the battery holder 9 including the pair of holder members 7 and 8, a required number of unit battery blocks according to need. 10 are arranged in parallel, and the upper and lower connecting end faces 13 of the holder members 7 and 8 are fixed by a supporting plate 31 and a connecting frame 32 as connecting members, thereby firmly supporting an arbitrary number of batteries 1 with a simple structure. be able to. As a result, even when the number of batteries 1 required in various devices and apparatuses is different, it is possible to cope with this by simply changing the number of use using the holder members 7 and 8 of the same standard. Even if the devices are individually produced in small quantities, the holder members 7 and 8 are versatile, so that the cost can be reduced by configuring them with an injection-molded product of insulating synthetic resin.

  Further, since the cylindrical batteries 1 are arranged in parallel in a slanted lattice shape with an arbitrary number of unit battery blocks 10 arranged in parallel, a useless space is not formed between the batteries 1 and 1, and output per volume The efficiency can be improved and the cooling performance of the battery 1 can be kept high at all times because the cooling air is uniformly applied to each battery 1. In addition, a recess 18 is provided in the joint end surface 12 of the holder members 7 and 8 so that the air passage 19 is formed between the joint end surfaces 12 and 12 in a state where the holder members 7 and 8 are arranged in parallel. Cooling air can also be introduced from both sides holding the both ends of 1.

  Further, the holding portion 20 of the pair of holder members 7 and 8 is provided with a receiving surface 21 with which the end surface of the battery 1 abuts, and the terminals 2 and 3 protruding from both ends of the battery 1 are fitted to the receiving surface 21. Since the fitting holes 22 and 23 to be formed are formed so that the terminals 2 and 3 penetrating the fitting holes 22 and 23 are connected by the connecting member 5 so as to connect the batteries 1 and 1. Even if the electrolyte solution leaks from 1, the creepage distance from the leaked portion at one end of the battery 1 to the energization path by the connecting member 5 is large, so that the occurrence of a short circuit due to the leaked solution can be suppressed.

  Further, the terminals 2 and 3 having different shapes depending on the polarity are protruded at both ends of the battery 1 and the fitting holes 22 and 23 of the holder members 7 and 8 are formed in the corresponding shapes. There is no possibility of connecting the terminals of the same polarity by inverting the positive and negative directions, and there is no possibility of short-circuiting due to carelessness during connection work, thus ensuring good workability and safety. Further, since the terminals 2 and 3 and the fitting holes 22 and 23 are engaged with each other in the rotational direction around the shaft center, when the connecting member 5 is fastened with the bolt 6, the tightening torque thereof is the holder members 7 and 8. There is no risk that the battery 1 will be damaged by a large rotational moment applied to the case of the battery 1.

  In addition, opposing surfaces 15 perpendicular to the connecting end surface 13 are formed at both ends of the joining end surfaces 12 of the holder members 7 and 8, and the holder members 7 and 8 are arranged in parallel on the opposing surfaces 15. Since the engagement recesses 16 and the engagement projections 17 that are fitted and engaged with each other only when the arrangement postures 7 and 8 are in the normal posture are provided, the holder members 7 and 8 are arranged in parallel. Since the holder members 7 and 8 are arranged in parallel in a normal posture by arranging the joint recess 16 and the engagement projection 17 so as to be fitted and engaged with each other, the terminals 2 and 3 of the battery 1 are connected to each other. When connecting between the holder members 7, 7, and 8, 8, there is no risk of connecting the terminals 2, 2, 3, 3 of the same polarity, and there is a risk of short circuit due to carelessness during connection work. Can ensure safety with good workability

  Further, since the connecting end face 13 is provided with a lead-out groove 27 for leading a lead wire from a sensor or the like attached to the battery 1 to the outside, the lead wire can be easily moved along the connecting end face 13 of the holder members 7 and 8. And it can be pulled out without fear of being bitten between the connection end face 13 and the support plate 31 or the connection frame 32, and the lead wire can be wired with good workability without fear of being damaged.

  In addition, when the holder members 7 and 8 are arranged in parallel at the portion adjacent to the connecting end surface 13 of each holding portion 20 of the holder members 7 and 8, an arc trough 24 that protrudes substantially in a wave shape in the parallel direction is projected. Therefore, even if the electrolyte leaks, the electrolyte smoothly flows along the guide path formed by the circular arc cage 24 that is substantially continuous in a wave shape, and a liquid receiving container (not shown) is disposed appropriately. It is possible to easily and reliably prevent the electrolyte from flowing toward the energizing path or flowing out to the outside.

  Further, in the battery pack 11 of the present embodiment, the required number of unit battery blocks 10 are arranged in parallel on the support plate 31, the connection frame 32 is arranged thereon, and the first and the first in the support plate 31 and the connection frame 32. Since the connecting end surfaces 13 and 13 of the holder members 7 and 8 are fixed to the two connecting rail portions 35 and 38, respectively, a simple configuration comprising a plurality of holder members 7 and 8, a support plate 31, and a connecting frame 32 is possible. A battery pack 11 that reliably holds each battery 1 can be configured by assembling work, and a battery pack 11 having a desired output voltage can be configured simply by arbitrarily changing the number of unit battery blocks 10 arranged in parallel. Therefore, the battery pack 11 having various output voltage specifications can be provided at a low cost.

  Further, when the exhaust fan 43 disposed on the cover member 33 attached to the connection frame 32 is operated, cooling air is sucked from the ventilation openings 36 of the support plate 31, and each of the batteries 1, 1 arranged in an oblique lattice shape. By passing through the gap between them and being discharged to the outside through the inside of the cover member 33, the cooling air flows evenly in contact with each battery 1, so that each battery 1 can be effectively cooled. Further, since the air passage 19 is formed between the joining end faces 12 and 12 of the holder members 7 and 8 as described above, for example, the battery pack 11 is attached to an elevator frame (not shown) as shown in FIG. When mounting, the mounting plate 49 for mounting the support plate 31 to a frame (not shown) has an arrangement structure that closes a part of the ventilation opening 36 formed in the support plate 31. Even in such a case, by forming the opening on the side surface of the connecting frame 32 as described above, the cooling air is supplied to the battery 1 through the air passage 19 through the spaces 42 on both sides of the connecting frame 32 and the battery is installed. Cooling can be ensured.

  Further, a cover that covers the periphery of all the unit battery blocks 10 and has an opening between the holder members 7 and 8 is fixed to the support plate 31, and an exhaust fan 43 is disposed on the opening of the connection frame 32. Since the battery pack 11 is configured by detachably attaching the member 33, the energization path formed by connecting the terminals 2 and 3 of the battery 1 with the connecting member 5 on the outer surfaces of the holder members 7 and 8 is a connecting frame. When the maintenance work is performed, the cover member 33 is removed, and the worker can work safely without touching the energization path to get an electric shock.

  In the above embodiment, as the pair of holder members 7 and 8 constituting the battery holder 9, only the example in which the battery 1 is held in a diagonal grid pattern in two upper and lower rows and two left and right rows is shown. The upper and lower rows, the left and right rows, and the upper and lower rows, and the right and left rows of 3 rows or more are prepared as appropriate, and they are used in appropriate combinations according to the number of batteries 1 used in the battery pack 11. Anyway. It can also be arranged in three or more stages on the top and bottom.

  Moreover, in the said embodiment, although the battery pack 11 was shown with the some unit battery block 10, the support plate 31, the connection frame 32, and the cover member 33, the thing of frame structure like the connection frame 32 was shown. Is not necessarily used, and for example, it may be configured by a connecting member composed only of the support plate 31 and the second connecting rail portion 38 and covered with a separately provided equipment-side cover. .

  In the battery holder and the battery pack of the present invention, the required number of holder members for holding both ends of the battery are arranged in parallel and the holder members are fixed by the connecting members, so that any number of batteries are firmly supported with a simple structure. It is possible to reduce the cost by mass-producing holder members because it can be used for various devices and devices that require different number of batteries just by changing the number of holder members of the same standard. Since the cylindrical batteries are held in parallel in a slanted grid, wasteful space is not formed between the batteries, the output efficiency per volume can be improved, and the cooling air is applied evenly to each battery. Since the effect of being able to cool effectively is exhibited, it is useful for various battery packs.

1 shows a process for assembling a battery holder according to an embodiment of the present invention, in which (a) is a perspective view of a state in which a battery is held by one holder member, and (b) is a battery holder made up of a pair of holder members. The perspective view of the state which hold | maintained and formed the unit battery block, (c) is a perspective view of the state which arranged the several unit battery block in parallel. The holder member of one side of the embodiment is shown, (a) is the front view seen from the outside, (b) is the perspective view, (c) is the perspective view seen from the inside. The other holder member of the battery holder of the embodiment is shown, (a) is a front view seen from the outside, (b) is the perspective view, (c) is a perspective view seen from the inside. The longitudinal cross-sectional view which cut the battery pack of the same embodiment in the battery longitudinal direction. The longitudinal cross-sectional view which cut the battery pack of the same embodiment in the battery arrangement direction. The disassembled perspective view of the support plate of the battery pack of the same embodiment, a connection frame, and a cover. The perspective view of the battery pack of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Battery 2, 3 Terminal 7, 8 Holder member 9 Battery holder 10 Unit battery block 12 Joint end surface 13 Connection end surface 14 Nut (fixing means)
DESCRIPTION OF SYMBOLS 15 Opposite surface 16 Engagement recessed part 17 Engagement convex part 18 Recessed part 19 Air flow path 20 Holding part 21 Receiving surface 22, 23 Fitting hole 24 Arc hook 27 Leading groove 31 Support plate 32 Connection frame 33 Cover member 35 1st connection rail Part 36 Ventilation opening 38 Second connecting rail part 43 Exhaust fan

Claims (8)

Each holder member is formed of a pair of holder members that are arranged to face each other and are provided with holding portions for fitting and holding the end portions of cylindrical batteries, and each holder member has a substantially parallelogram shape and a holder. A plurality of holding portions are arranged in parallel with at least one pair of parallel sides of the parallelogram of the members, and end faces forming the one pair of parallel sides are joined when the holder members are arranged in parallel. And a connecting end surface provided with fixing means for connecting the connecting members in a state where the holder members are arranged in parallel, the end surfaces forming the other pair of parallel sides in the parallelogram .
A battery holder, wherein a lead-out groove for leading a lead wire from a sensor attached to the battery to the outside is provided on the connection end face .   2. The battery holder according to claim 1, wherein a concave portion for forming a ventilation path between the joint end faces in a state where the holder members are arranged in parallel is provided on the joint end faces.   The holding portion of the pair of holder members has a receiving surface with which an end face of the battery abuts, and a fitting hole into which a terminal protruding at both ends of the battery is fitted is formed through the receiving face. The battery holder according to 1.   The terminals protruding at both ends of the battery have different shapes depending on the polarity, and the fitting holes of the holder member have the same shape as the terminals to be fitted, and the fitting holes of terminals having different shapes to be connected to each other are adjacent in the same direction. The battery holder according to claim 3, wherein the battery holder is arranged as described above. Both end portions of the joining end surface are configured as opposing surfaces perpendicular to the connecting end surface, and only when the holder member is placed in a regular posture when the holder members are arranged in parallel on the opposing surface, battery holder of claim 1, wherein in that a concave-convex portion to fit engagement. The portion adjacent the connecting end surface of the holding portion of the holder member, according to claim 1, wherein the arc brim that continuous to the waveform shape in the parallel direction when arranged in parallel holder member is characterized in that it is projected Battery holder. A battery pack having a plurality of unit battery blocks composed of the batteries holder with a plurality of batteries having both ends are held by the battery holder,
The battery holder is composed of a pair of holder members that are arranged to face each other and are each provided with a holding portion that holds and holds the end of a cylindrical battery, and each holder member has a substantially parallel front shape. A plurality of holding portions are arranged in parallel to at least one of the parallel sides of the quadrilateral and the parallelogram of the holder member, and the end surfaces forming the one pair of parallel sides are arranged in parallel with the holder member. A joining end face to be joined at the time of placement, and an end face forming the other pair of parallel sides in the parallelogram, as a connecting end face provided with a fixing means for connecting members in a state where the holder members are arranged in parallel,
A first connecting rail portion for fixing one connecting end surface of each holder member is fixed in parallel on a support plate having a ventilation opening in a region facing the battery, and the other connecting end surface of each holder member is fixed. A battery pack, characterized in that an exhaust fan is disposed in a cover portion that is provided integrally with a connecting member having a second connecting rail portion to be fixed or attached as a separate member and covers the battery. A cover comprising a connecting frame that covers the outer surface of each holder member of all the unit battery blocks and is fixed to the support plate and has an opening between the holder members, and an exhaust fan is disposed on the opening of the connecting frame The battery pack according to claim 7, wherein the member is detachably attached.

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