JP2004158425A - Uninterruptible power source system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an uninterruptable power source system wherein the whole system is made compact, and the system works with a small installing space by arranging collectively a group of unit cells in a flat block shape and promoting the heat dissipation of the unit cells in power source modules. <P>SOLUTION: The power source modules M1/M2 and output wiring 2 are encased in a main body case 1. The power source modules M1/M2 are constituted in the flat block shape by arranging adjacently the unit cells 7 vertically and horizontally in their lying attitude. The main body case 1 is constituted by coupling a front case 14 and a back case 15 in a lid-fitting manner. A first division R1 encasing the power source modules M1/M2 and a second division R2 encasing the output wiring 2 are located in the main body case 1. Heat dissipating openings 20 to dissipate outside the heat of the unit cells 7 are disposed on the front case 14. The installing base 48 of the main body case 1 is formed nearly parallelly with the central axes of the unit cells 7. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an uninterruptible power supply used as, for example, a backup power supply for an information processing apparatus, and more particularly to an uninterruptible power supply in which a power supply module composed of a group of cylindrical secondary batteries is housed in a case.
[0002]
[Prior art]
The uninterruptible power supply of the information processing device is arranged between a commercial power supply and the information processing device, and supplies power at the time of a power failure. A conventional uninterruptible power supply is configured by a chargeable / dischargeable lead battery. In many cases, this type of uninterruptible power supply needs to supply power to a plurality of information processing devices. The space was big and I won. In the case of medium-sized information processing devices, such as disk array devices, for which data is highly important, lead batteries are often placed in correspondence with individual devices. The space had to be large.
[0003]
There is a power supply unit that packs a plurality of small cylindrical rechargeable batteries such as nickel-metal hydride batteries and lithium-ion batteries as battery elements, and packs them in a case. It is used as a power source for tools, electric bicycles, and hybrid vehicles. A power tool for a power tool and an electric bicycle includes about 20 element batteries connected in series in a case. A power supply device applied to a hybrid vehicle is unitized by connecting 200 or more element batteries in series (see Patent Document 1). It has also been proposed to arrange a power supply module by arranging a predetermined number of element batteries on a plane, arrange several power supply modules in a state where the module surfaces are adjacent to each other, and connect them to form a power supply device. (See Patent Document 2). As described above, in a power supply device that uses a large number of element batteries, it is necessary to add a cooling device such as a fan in order to eliminate temperature variations among the batteries. I can't.
[0004]
[Patent Document 1]
JP-A-10-270006 (Paragraph No. 0026-0029, FIG. 2)
[Patent Document 2]
JP-A-2000-223100 (paragraph numbers 0024-0034, FIG. 2)
[0005]
[Problems to be solved by the invention]
Development of a compact uninterruptible power supply unit suitable for medium-sized information processing devices, especially by making the power supply unit compact by configuring the power supply unit with cylindrical element batteries with high energy density such as nickel-metal hydride batteries and lithium-ion batteries Have been tried. In order to realize compactness, a large number of element batteries are regularly arranged and arranged, and the space occupied by the whole is made as small as possible.
[0006]
For example, the element batteries are grouped together in a manner in which the bales are stacked in a triangular shape, or the element batteries are regularly arranged and blocked. However, when the element batteries are arranged in a lump, the temperature variation between the batteries due to the difference in the arrangement position is inevitable, and a dedicated cooling device is indispensable like the power supply device for hybrid vehicles described above. In addition, there is a possibility that the power supply device is downsized and the space saving effect cannot be exhibited.
[0007]
By the way, when a cylindrical secondary battery is charged in a state where the battery lid is downward, that is, in an inverted posture, the gas generated during the charging cannot be released, so that the internal pressure of the battery abnormally increases at the end of charging, and Leaks may occur. When the battery is deteriorated, the same liquid leakage easily occurs.
[0008]
In order to avoid such a situation, it is necessary to arrange the individual element batteries in a reclined position, and further ensure that the power supply unit is installed in an appropriate position during use by using the instruction manual and the like. is there. However, depending on the installation location of the information processing apparatus, a space where the power supply apparatus can be installed in a normal posture may not be secured, and in such a case, there is a high possibility that the power supply apparatus will be installed in an inappropriate posture.
[0009]
Inside the power supply device, output wiring for connecting a group of element batteries and a connector provided on the outer surface of the case is provided, but if the layout is complicated or the wiring length is long, the power pack becomes large. I will. Furthermore, as described above, when the user arranges the power supply in an improper installation orientation, the weight of the element batteries in the case acts as a tensile load or a shear load on the output wire, and the battery is not used for a long time. Sometimes disconnection or poor connection may occur.
[0010]
An object of the present invention is to provide a power supply module in which a group of unit cells are arranged in a flat block shape and an output wiring and the like are housed in a case, thereby achieving high energy while reducing the overall size as compared with a lead battery. An uninterruptible power supply is provided.
[0011]
SUMMARY OF THE INVENTION An object of the present invention is to suppress variations in temperature between batteries constituting a power supply module, so that a cooling device such as a cooling fan is not required, the whole can be further compacted, and the space required for installation is small. It is to provide an uninterruptible power supply that can be used.
[0012]
An object of the present invention is to provide a power supply module, an output wiring, an electric component for detecting a temperature and a voltage of an element battery, and furthermore, all components such as a fuse for interrupting an overcurrent, in a simple manner with less trouble for a case. An object of the present invention is to provide an uninterruptible power supply that can be assembled.
[0013]
[Means for Solving the Problems]
The uninterruptible power supply according to the present invention includes at least one power supply module (M1 · M2) configured by connecting a group of cells 7 each formed of a cylindrical secondary battery in series, and supplies power of the power supply module. It includes an output wiring 2 for outputting, and a main body case 1 for housing the power supply module and the output wiring 2. The power supply module has a large number of unit cells 7 arranged side by side in a horizontal position vertically and horizontally to form a flat block. The main body case 1 is formed by connecting a front case 14 and a rear case 15 that sandwich the front and rear surfaces of the power supply module in a lid-to-cover shape. Inside the main body case 1, a first section R1 for housing the power supply module and a second section R2 for housing the output wiring 2 are provided. At least one of the front case 14 and the rear case 15 is provided with a heat radiating port 20 for releasing the heat of the group of unit cells 7 out of the main body case 1. The installation bottom surface 48 of the main body case 1 is formed substantially parallel to the central axis of the group of unit cells 7 housed in the main body case 1 as shown in FIG. In addition, it is preferable to provide a large number of heat radiating ports 20 corresponding to each of the cells 7.
[0014]
Specifically, only one (M1) power supply module may be accommodated in the first section R1 in the main body case 1, or a plurality of (M1) and (M2) may be divided in the horizontal direction as shown in the illustrated example. In some cases. Each power supply module is composed of several (four in the figure) module elements 6 arranged adjacently in the left-right and lateral directions. Further, each module element 6 is composed of several (seven in the figure) unit cells 7 arranged adjacently in the vertical direction.
[0015]
As shown in FIG. 8, a heat radiating sheet 50 for promoting heat radiation of the unit cell 7 is disposed in the heat radiating port 20, and the heat radiating sheet 50 can be adhered to a part of the outer peripheral surface of the unit cell 7.
[0016]
On the inner surface of the main body case 1 facing the first section R1, fixed ribs 17 and 28 for sandwiching the front and rear of the power supply module (M1 and M2), and positioning walls 16 and 27 for receiving the upper and lower and left and right outer lines of the power supply module.・ 31 is provided. In the second section R2, a code holder 33 for supporting the output wiring 2 is protruded.
[0017]
When a plurality of power supply modules M1 and M2 are accommodated in the main body case 1, the positioning wall provided in the first section R1 is used for positioning and holding the adjacently disposed power supply modules M1 and M2 in a separated state. And a pair of vertical partition walls 31 that partition the first section R1 in the left-right direction.
[0018]
The power supply modules (M1 and M2) can be bonded and fixed to the inner surface of at least one of the front case 14 and the rear case 15 with an adhesive 52, for example, as shown in FIG. The adhesive 52 widely includes a resin adhesive (bond), a double-sided adhesive, an instant adhesive, and the like.
[0019]
The front case 14 and the rear case 15 are composed of fastening bosses 23, 24, 36, 37 provided on the joint surfaces of the front and rear cases 14, 15, screws 47 for fastening and fixing these fastening bosses, and front and rear cases 14, 15. Are fixed to the plurality of joining claws 25 and the joining holes 38 which are provided on the joining surface and are engaged with each other inseparably. The fastening bosses 23, 24, 36, and 37 protrude from the outer surface of the case peripheral wall surrounding the first section R1.
[0020]
The second section R2 is formed on the inner surface of the side of the main body case 1 along the power supply module (M1 · M2) housed in the first section R1, and the output wiring 2 is provided at one end of the second section R2 outside the main body case 1. A lead wire port 39 leading out to the opening can be opened.
[0021]
A first fuse 3 is provided corresponding to the power supply module (M1 · M2), and the first fuse 3 can be mounted on a first bracket 34 provided in the second section R2.
[0022]
Further, the first fuse 3 and the output wiring 2 are connected by a conductive connecting plate 41 as shown in FIG. 6, and this connecting plate 41 is fixed to a second bracket 35 provided in the second section R2. Can be.
[0023]
A temperature sensor 4 is provided corresponding to the power supply module (M1 · M2), and the temperature sensor 4 is arranged and fixed on the inner surface of the case wall where the heat radiating port 20 is formed, and its output lead wire 4a is shown in FIG. As described above, it is led out to the second section R2 via the space occupied by the pair of vertical section walls 31.
[0024]
A monitor lead 44 for measuring the voltage of each module element 6 constituting the power supply module (M1 · M2) is disposed in the first section R1, and a part of the monitor lead 44 is It is led to the second section R2 via the space occupied by the vertical section wall 31. Specifically, as shown in FIG. 6, in order to monitor the voltage of each module element 6, a monitor lead wire 44 is led from the lower end and the upper end of each module element 6, and is derived from the upper end of the module element 6. The monitor lead wire 44 is guided to the second section R2 as it is, and the monitor lead wire 44 derived from the lower end of the module element 6 passes through the space occupied by the vertical partition wall 31 from the space between the monitor lead wire 44 and the bottom wall of the main body case 1. It is led to the second section R2.
[0025]
A monitor lead 44 for measuring the voltage of each module element 6 constituting the power supply module is provided, and a second fuse 53 is disposed on each monitor lead 44 as shown in FIGS. 6 and 7. Have been.
[0026]
On the inner surface of the bottom wall of the first section R1, a water absorbing sheet 45 can be arranged as shown in FIG.
[0027]
The power supply module (M1 · M2) is composed of a plurality of module elements 6 unitized by connecting a plurality of unit cells 7 in series. The positive terminal 7a and the negative terminal 7b located at the output end of the adjacent module element 6 are connected via the element connecting plate 9. At this time, as shown in FIGS. 11 to 14, the element connection plate 9 includes a main wall 54 connecting the positive terminal 7 a and the negative terminal 7 b, and a connecting piece 55 projecting obliquely from one side edge of the main wall 54. And a peripheral edge 56 at at least one side end of the main wall 54 is formed in a shape that matches the outer shape of one of the positive electrode terminal 7a and the negative electrode terminal 7b. Then, by bending the element connection plate 9 into two folds, it is possible to make the plurality of module elements 6 continuous in a flat plate block shape.
[0028]
The output terminals 10 and 11 welded to the positive terminal 7a and the negative terminal 7b located at the output terminals of the power supply modules (M1 and M2) are provided with lateral lead connection arms 59 and 66, as shown in FIG. And the battery connection legs 60 and 67 bent downward continuously. The lead connection arms 59 and 66 are provided corresponding to the output wiring 2, the monitor lead wire 44, and the power supply module. Lead holes 61, 68, 69 for soldering connection leads of the fuse 3 are provided between the lead holes 61, 68, 69 and the bent base ends of the lead connection arms 59, 66. Areas E1 and E2 are provided.
[0029]
Operation and Effect of the Invention
In the uninterruptible power supply of the present invention, the cells 7 are arranged vertically and horizontally adjacently in a reclined position, the power supply modules (M1 and M2) are configured in a flat block shape, and the power supply module and its output wiring 2 and the fuse 3 Since the electrical components such as the temperature sensor 4 are collectively housed in the main body case 1, it is possible to increase the energy while reducing the size of the whole as compared with a case where a lead battery is used as a power source (claim 1).
[0030]
A first section R1 and a second section R2 are provided in the main body case 1, a power supply module (M1 · M2) is accommodated in the first section R1, and an output wiring 2 and electric components are accommodated in the second section R2. Therefore, the power supply module and the electrical components such as the output wiring 2 can be easily assembled to the main body case 1 with less labor. Since the power supply module, the output wiring 2 and the like can be effectively arranged without wasting space, the uninterruptible power supply can be made more compact and the installation space can be reduced accordingly.
[0031]
The main body case 1 includes a front case 14 and a rear case 15 that are divided into two parts. A heat radiation port 20 is opened in at least one of the front and rear cases 14, 15, for example, in the front case 14, and heat of the unit cells 7 is discharged. If the cell 7 can be released to the outside via the battery 20, the cell 7 can be prevented from being exposed to a high temperature state for a long time during charging, and the temperature drop after charging can be promoted. Life is improved. Since cooling means such as a cooling fan can be omitted, the power supply device can be made more compact and the space required for installation can be set smaller.
[0032]
Since the installation bottom surface 48 of the main body case 1 is set substantially parallel to the central axis of the group of cells 7 housed in the main body case 1 as shown in FIG. As long as the battery is used, it is possible to prevent the internal pressure of the unit cell 7 from abnormally increasing at the time of charging, and to reliably prevent liquid leakage.
[0033]
As shown in FIG. 8, the heat radiating port 20 is provided with a heat radiating sheet 50 for promoting heat radiation of the single cell 7, and when the heat radiating sheet 50 is adhered to a part of the outer peripheral surface of the single cell 7, After conducting heat to the heat radiating sheet 50, the conductive heat can be effectively released to the outside through the heat radiating sheet 50 having a large area. This can promote a subsequent temperature drop, shorten the time during which the unit cell 7 is exposed to a high temperature state, and further improve the life of the unit cell 7 (Claim 2).
[0034]
The power supply modules (M1 and M2) housed in the first section R1 receive the upper and lower and left and right outer lines by positioning walls 27, 16, 31 and the like, and are further supplied with power by the fixing ribs 17 and 28 on the main body case 1 side. When the front and rear of the module are sandwiched, the power supply module housed in the main body case 1 can be firmly fixed and supported in a non-movable manner, so that poor connection and disconnection of the electric wiring due to rattling of the power supply module can be prevented well. Item 3).
[0035]
According to the form in which the electric wiring such as the output wiring 2 is locked to the cord holder 33 provided in the second section R2, an external force acting on the electric wiring is borne by the code holder 33, and the electric wiring is connected to the power supply module. Since the external force can be prevented from acting on the portion, even if the uninterruptible power supply is roughly handled or the electric wiring is pulled by a strong force, the connection failure and disconnection can be prevented well (claim Item 3).
[0036]
When the first section R1 in the main body case 1 is divided in the left-right direction by the pair of vertical division walls 31 as shown in FIGS. 5 and 6, the power supply modules M1 and M2 disposed adjacent to each other are surely separated from each other. Thus, the space occupied by the vertical partition wall 31 can be effectively used as a space for arranging electric wiring (claim 4).
[0037]
As shown in FIGS. 1, 2 and 5, when the power supply module (M1 · M2) is adhered and fixed to at least one inner surface of the front case 14 and the rear case 15 with an adhesive 52, It is possible to reliably prevent the power supply module in the case 1 from rattling or displacing, and to prevent the electric wiring from being disconnected due to the rattling or displacement. In particular, even when the power supply modules M1 and M2 are disposed adjacent to each other, damage to the electrical connection between the power supply modules M1 and M2 can be prevented, so that the vibration resistance is improved (claim 5).
[0038]
The plurality of joining claws 25 and the joining holes 38 provided on the joining surface of the front and rear cases 14 and 15 are engaged with each other, so that the front case 14 and the rear case 15 are integrated, and By fastening the provided fastening bosses 23, 24, 36 and 37 with screws 47, if the front and rear cases 14 and 15 are fastened inseparably as shown in FIG. Power modules (M1 and M2) can be securely supported and fixed. Further, when the fastening bosses 24 and 37 are provided on the outer surface of the case peripheral wall surrounding the first section R, dead space that cannot be avoided when the fastening bosses 24 and 37 are provided inside the first section R1 can be omitted. Accordingly, the first section R1 can be made compact by that amount, and the uninterruptible power supply can be downsized.
[0039]
The second section R2 is formed on the inner surface of the side of the main case 1 along the power supply modules M1 and M2 housed in the first section R1, and the output wiring 2 is led out of the main case 1 at one end of the second section R2. According to the case structure in which the conductor port 39 is open, the electric wiring such as the output wiring 2 can be collectively arranged in the second section R2. Therefore, a plurality of power supply modules M1 and M2 are particularly arranged in the first section R1. In this case, the wiring structure is simplified, which is advantageous for simplifying inspection work and repair work.
[0040]
If the first fuse 3 corresponding to the power supply module is mounted and fixed to the first bracket 34 provided in the second section R2, the first fuse 3 can be positioned and fixed at a predetermined position. You can check the connection status of the wire at a glance. Even when an external force acts on the main body case 1, the first fuse 3 can be prevented from floating, and the connection portion of the lead wire can be well prevented from being disconnected or falling into a poor connection state. (Claim 8).
[0041]
The first fuse 3 and the output wiring 2 are connected via a connecting plate 41, and when this connecting plate 41 is fixed to the second bracket 35 of the second section R2, an external force acting on the output wiring 2 is reduced. The external force can be prevented from directly acting on the first fuse 3 by being received by the connecting plate 41. Therefore, disconnection or poor connection at the connection portion between the first fuse 3 and the output wiring 2 can be prevented well (claim 9).
[0042]
When the temperature sensor 4 provided for each of the power supply modules M1 and M2 is provided on the case wall adjacent to the heat radiating port 20, specifically, on the inner surface of the protective wall 21 of the front case 14, the temperature sensor 4 is provided on the outer surface of the case. The temperature in the main body case 1 can be correctly detected without being influenced by the environmental temperature. Therefore, electrical control of the uninterruptible power supply during charging and discharging can be appropriately performed. The output lead wire 4a of the temperature sensor 4 is unnecessarily enlarged by leading the output lead wire 4a to the second section R2 by using the space occupied by the vertical section wall 31, as shown in FIG. Wiring can be performed without the need, and it is useful to make the main body case 1 compact accordingly.
[0043]
In order to measure the voltage of each module element 6 constituting the power supply module, the monitor lead wire 44 provided in the first section R1 is led to the second section R1 using the space occupied by the vertical section wall 31. Accordingly, the wiring can be performed without unnecessarily expanding the first section R1, and the main body case 1 is correspondingly reduced in size (claim 11).
[0044]
If the second fuse 53 is individually arranged on each monitor lead wire 44 for measuring the voltage of each module element 6 constituting the power supply module, when a short circuit occurs due to a wiring failure or the like, the corresponding Heat generation and ignition of the monitor lead wire 44 can be prevented beforehand, which contributes to further improvement in safety (claim 12).
[0045]
When the water-absorbing sheet 45 is disposed inside the bottom wall of the first section R1 as shown in FIG. 1, even when the electrolyte of the unit cell 7 leaks, the electrolyte is discharged to the outside of the main body case 1. It is possible to prevent the outflow and to prevent the devices installed around the uninterruptible power supply from being soiled, or to prevent the failure of the devices due to the adhesion of the electrolytic solution.
[0046]
The positive terminal 7a and the negative terminal 7b located at the output end of the adjacent module element 6 are connected via the element connecting plate 9 as shown in FIG. 12, and the element connecting plate 9 is connected to the positive terminal 7a and the negative terminal 7a. When the main wall 54 connects the negative electrode terminal 7b on a bridge, and the connection piece 55 is provided to project obliquely from one side edge of the main wall 54, the connection protrudes outside the outer line of the battery. Since the monitor lead wire 44 can be soldered to the piece 55, no matter at what stage the monitor lead wire 44 is soldered, the soldering operation can be easily performed without being hindered by the cells 7. Since the connecting piece 55 to which the monitor lead wire 44 is connected is bent along the surface of the battery as shown in FIG. 13, the connecting piece 55 does not buffer the contact with the case 1 (claim 14).
[0047]
If the peripheral edge 56 of at least one side end of the main wall 54 is formed in a shape that matches the outer shape of one of the positive terminal 7a and the negative terminal 7b as shown in FIG. The main wall 54 can be properly positioned using the peripheral edge portion 56 when welding to the positive electrode terminal 7a and the negative electrode terminal 7b, so that the welding position of the main wall 54 to each of the terminals 7a and 7b can always be optimized. If the plurality of module elements 6 are connected to each other via the element connection plate 9 and then the element connection plate 9 is folded in two, and the module elements 6 are continuously formed in a flat block shape, the module element can be easily assembled. 6 can be pre-configured, and the element connection plate 9 may be welded to each module element 6 in a state where the module elements 6 are arranged side by side, and the power supply module (M1 · M2) as a whole is It can be manufactured efficiently with less labor (claim 14).
[0048]
As shown in FIG. 15, the output terminals 10 and 11 welded to the positive terminal 7a and the negative terminal 7b located at the output terminals of the power supply module are provided with lateral lead connection arms 59 and 66 and downward battery connection legs 60 and 67, respectively. When the heat radiation areas E1 and E2 are provided between the lead holes 61, 68 and 69 provided in the lead connection arms 59 and 66 and the bent base ends of the lead connection arms 59 and 66, The heat applied to the lead connection arms 59 and 66 during soldering can be radiated into the air in the heat radiation areas E1 and E2 before being transmitted to the battery connection legs 60 and 67. The battery 7 can be prevented from being overheated. Therefore, it is possible to surely prevent the unit cell 7 from being deteriorated or deteriorated, and to reduce product loss. Since it is not necessary to perform the soldering operation quickly in a short time, the soldering operation can be performed reliably and easily, and the work load can be reduced accordingly.
[0049]
【Example】
First Embodiment FIGS. 1 to 8 show a first embodiment of an uninterruptible power supply according to the present invention. In FIGS. 2 and 6, the uninterruptible power supply includes a rectangular case-shaped main body case 1 long in the left-right direction, two power supply modules M1 and M2 housed therein, and power of both power supply modules M1 and M2. It comprises an output wiring 2 for outputting, first fuses 3.3 provided for each of the power supply modules M1 and M2, and thermistors (temperature sensors) 4.4 for detecting a temperature state in the main body case 1.
[0050]
In FIG. 3, each of the power supply modules M1 and M2 is formed in a flat plate block shape with four module elements 6 arranged adjacently in the horizontal direction, and each module element 6 is composed of seven unit elements arranged adjacently in the vertical direction. It is composed of a battery 7. The cell 7 is a cylindrical secondary battery having a high energy density such as a nickel-metal hydride battery or a lithium-ion battery. For example, in the case of a nickel hydride battery SubC size, the voltage is 1.2 V and the battery capacity is 3.0 Ah. It is.
[0051]
In FIG. 3, the vertically adjacent cells 7 are arranged in a reclining posture in which the battery center line is horizontal, and the positive electrode terminals 7a are alternately turned left and right. The positive electrode terminal 7a and the negative electrode terminal 7b of the vertically adjacent unit cells 7, 7 are connected in series by a connection plate 8 welded to both terminals 7a, 7b. The individual module elements 6 are formed by winding an adhesive tape (not shown) accordingly.
[0052]
The lower ends and the upper ends of the four module elements 6 adjacent to the left and right are connected by an element connecting plate 9, and the output terminals 10 and 11 are fixed to the upper ends of the module elements 6 on both the left and right sides. In addition, between adjacent module elements 6, an insulating sheet 12 for preventing contact between the left and right adjacent connection plates 8 is arranged.
[0053]
In FIG. 1, the main body case 1 is composed of a front case 14 and a rear case 15 which are divided into two front and rear parts and joined together in a lid-like manner. The inside of the main body case 1 includes a lower first section R1 that houses the power supply modules M1 and M2, and a second section R2 that is provided adjacent to the upper end of the first section R1 and houses the output wiring 2 and the like. Is divided into
[0054]
In FIG. 4, near the upper end of the inner surface of the front case 14, there is provided a positioning wall (partition wall running in the lateral direction) 16 for dividing the lower case into a first section R1 and an upper second section R2. On the inner surface of the first section R1 of the front case 14, there are provided vertical fixing ribs 17 for holding the power supply modules M1 and M2 from the front and rear directions, and horizontal reinforcing ribs 18 connecting these fixing ribs 17 to each other. It protrudes vertically and horizontally.
[0055]
The fixing ribs 17 are provided so as to form a pair on the left and right sides of each module element 6 in order to press the outer peripheral surface of the group of cells 7 arranged in a vertical row on both front and rear sides. A concave portion 19 having a concave shape sandwiching a part of the outer peripheral convex curved surface of 7 is formed in a continuous wave shape (see FIG. 1).
[0056]
On the front wall of the front case 14 surrounded by the pair of left and right fixed ribs 17 and the reinforcing ribs 18, a heat radiation port 20 for releasing heat of the unit cells 7 to the outside of the main body case 1 is opened. However, in the case walls of the second row from the left and the third row from the right as viewed in FIG. 4, the heat radiation openings 20 are opened only at the upper and lower ends and the center of the case wall, and adjacent to the upper and lower sides of the central heat radiation opening 20. The case wall is not open. As will be described later, the thermistor 4 is disposed on an unopened case wall, that is, on the inner surface of the protective wall 21 to prevent the thermistor 4 from being affected by the environmental temperature of the outer surface of the case.
[0057]
On the inner surface of the second section R2 of the front case 14, pressing ribs 22 for holding and fixing the output wiring 2 and the like cooperate with the rear case 15 are provided in a staggered manner. The front case 14 has a total of six fastening bosses 23 and 24 and six joining claws 25 integrally formed on the joint surface with the rear case 15. Of the six fastening bosses 23, 24, three fastening bosses 24 facing the first section R1 protrude from the left and right outer sides of the front case 14, and the fastening boss 23 at the center of the bottom wall is the front case. 14 are provided on the inner surface. This is to prevent the power supply modules M1 and M2 from contacting and interfering with the three fastening bosses 24, thereby realizing space saving in the first section R1. As will be described later, the joining claw 25 is press-fitted into a joining hole 38 provided in the rear case 15 to maintain the joined state of the two cases 14 and 15.
[0058]
In FIG. 5, near the upper end of the inner surface of the rear case 15, there is provided a positioning wall (a partition wall running in the lateral direction) 27 for partitioning into a lower first partition R1 and an upper second partition R2. Similarly to the front case 14, on the inner surface of the first section R1 of the rear case 15, vertical fixing ribs 28 for sandwiching the power supply modules M1 and M2 from front and rear, and lateral reinforcement connecting these fixing ribs 28 are provided. The rib 29 protrudes in a state of crossing vertically and horizontally. A point that the fixing ribs 28 are protruded from the left and right for each module element 6, and a concave concave portion 30 for receiving and holding the convex curved surface of each cell 7 at the protruding end of the fixing rib 28 (see FIG. 1). ) Are the same as the front case 14 in that they are formed in a continuous wave shape.
[0059]
In the rear case 15, the inside of the first section R1 is divided into left and right sections by a pair of vertical partition walls 31 provided at the center in the left and right directions and running vertically, and the power supply modules M1 and M2 are arranged in the left and right sections. Each is accommodated adjacently. This point is different from the previous case 14. The space occupied by the pair of vertical partition walls 31 is used as a wiring space. On the bottom wall (positioning wall) of the first section R1, a receiving rib 32 for supporting the lower surface of each module element 6 is protruded. Each vertical partition wall 31 also serves as a positioning wall in the left-right direction of each of the power supply modules M1 and M2.
[0060]
The positioning wall 27 and the case bottom wall, and the vertical partition wall 31 and the case side wall each have a projection height from the inner surface of the case of 4 to 95% of the diameter of the cell 7 and a thickness of 0%. It is preferably set to 0.5 to 2 mm. By the way, if the protrusion height is less than 4%, it becomes difficult to securely fix and hold the power supply modules M1 and M2 by sandwiching the unit cells 7 back and forth. Further, if the protruding height exceeds 95%, when assembling the power supply modules M1 and M2 into the first section R1, the above-mentioned respective walls hinder the assembling workability.
[0061]
On the inner surface of the rear case 15 facing the second section R2, three cord holders 33 for supporting the output wiring 2 and the like, a first bracket 34 for mounting the first fuse 3, and a connecting plate 41 described later. And a second bracket 35 for fixing the projection.
[0062]
The rear case 15 has six fastening bosses 36 and 37 corresponding to the preceding fastening bosses 23 and 24 and the joining claw 25 and six joining holes 38 respectively formed on the joint surface with the front case 14. is there. For the same reason as in the front case 14, three fastening bosses 37 facing the first section R1 of the fastening bosses 36 and 37 project from the outer surfaces on the left and right sides of the rear case 15. Since the fastening boss 36 at the center of the bottom wall is provided immediately below the pair of vertical partition walls 31, there is no contact interference with the power supply modules M1 and M2. On the left side wall of the rear case 15 facing the second section R2, a wire opening 39 for leading out the output wiring 2 and the like to the outside is cut out in a semicircular shape. The conductor port 39 is also formed in the front case 14 in a semicircular shape.
[0063]
The lateral width of the cord holder 33 is preferably 2 to 10 mm, and the projecting dimension of the cord holder 33 from the inner surface of the case is preferably 50 to 95% of the diameter of the cell 7. If the protruding dimension is less than 50%, the output wiring 2 and the like cannot be securely hooked on the code holder 33, and the wiring is likely to float. On the other hand, if the protruding dimension exceeds 95%, the workability at the time of incorporating the output wiring 2 in the second section R2 is deteriorated.
[0064]
The diameter of the conductor port 39 is preferably 50 to 90% of the diameter of the cell 7. If the diameter is less than 50%, it becomes difficult to take out the wiring group, and if the diameter exceeds 90%, the case strength around the conductor port 39 is reduced.
[0065]
FIGS. 6 and 7 show the relationship between the left and right power supply modules M1 and M2. The first fuse 3 is a cylindrical fuse having a connecting lead wire, and is interposed between the output terminal 10 on the positive electrode side and the output wiring 2. Specifically, one connection lead is connected to the output terminal 10, and the other connection lead is connected to the output wiring 2 via the connection plate 41. At the leading end of the output wiring 2 leading from the positive and negative output terminals 10 and 11, two plus-side connectors 42 and two minus-side connectors 43 are branched and led out for each of the power supply modules M1 and M2. .
[0066]
As described above, the thermistor 4 is disposed by using the adjacent recess of the unit cell 7 facing the protective wall 21, and the element portion thereof is fixed by bonding. As shown in FIG. 6, the lead wire 4a derived from the thermistor 4 connects the adjacent recess between the upper and lower unit cells 7 and the space occupied by the pair of vertical partition walls 31, that is, the adjacent space between the left and right power supply modules M1 and M2. Via the conductor opening 39 together with the output wiring 2 to the outside of the case.
[0067]
In order to monitor the voltage of each module element 6, monitor leads 44 are led out from the lower and upper ends of the individual module elements 6. The monitor lead 44 derived from the upper end of the module element 6 is guided as it is into the second section R2. The monitor lead wire 44 led out from the lower end of the module element 6 is connected to the bottom wall of the case and adjacent to the power supply modules M1 and M2 (the space occupied by the pair of vertical partition walls 31). Derived inside. All the monitor lead wires 44 are led out of the case through the conductor port 39 together with the output wiring 2.
[0068]
A second fuse 53 is individually provided for each monitor lead 44. The second fuse 53 prevents heat generation and ignition of the monitor lead wire 44 when the monitor lead wire 44 is short-circuited for some reason such as a wiring failure.
[0069]
In FIG. 1, reference numeral 45 denotes a water-absorbing sheet laid on the inner surface of the bottom wall of the main body case 1. The sheet 45 is formed of paper having a thickness of 0.3 to 1.0 mm or a nonwoven fabric having a thickness of several mm, and absorbs the electrolyte when the cell 7 leaks for some reason. In addition, the electrolyte is prevented from flowing out of the case.
[0070]
The uninterruptible power supply is assembled as follows. The power supply modules M1 and M2 are assembled in advance in a separate process including the output wiring 2, the fuse 3, the thermistor 4, the monitor lead wire 44, and the like.
[0071]
After the water absorbent sheet 45 is placed on the bottom wall of the case 15 after being placed on the worktable, the power supply modules M1 and M2 are fitted into the left and right sections in the rear case 15, respectively. At this time, as shown in FIGS. 2 and 5, an adhesive (bond) 52 is attached between the vertical and horizontal ribs 28 and 29 on the inner surface of the rear case 15, and the upper and lower ends of each module element 6 are attached to the inner surface of the rear case 15. Is fixed by using an adhesive 52. That is, in each of the power supply modules M1 and M2, eight cells 7 located at the upper and lower ends at six locations were individually bonded to the inner surface of the rear case 15. However, since each unit cell 7 in the illustrated example straddles two fixing ribs 28, each unit cell 7 may be bonded to the fixing rib 28, respectively. At least in each of the power supply modules M1 and M2, it suffices that the four unit cells 7 located at the upper, lower, left, and right ends are bonded and fixed. When the adhesive tape is wrapped around the outer periphery of the unit cell 7, the unit cell 7 is adhered to the inner surface of the rear case 15 via the adhesive tape.
[0072]
In a state where the power supply modules M1 and M2 are fitted in the rear case 15, the upper and lower sides of each of the power supply modules M1 and M2 are positioned and held by the positioning wall 27 and the receiving rib 32 of the case bottom wall (positioning wall). The left and right sides of the modules M1 and M2 are positioned by the left and right case side walls (positioning walls) and the vertical partition walls 31, and all of the cells 7 located at the lower end are interposed through the water absorbing sheet 45 as shown in FIG. It is received and supported by the fixing rib 28.
[0073]
Next, the fuse 3 and the connecting plate 41 are inserted into and fixed to the first and second brackets 34 and 35, respectively, and the output wiring 2, the lead 4a of the thermistor 4, and the monitor lead 44 are wired as described above. . At this time, the output wiring 2, the lead wire 4 a of the thermistor 4, and the monitor lead wire 44 are locked by using the three cord holders 33 or are inverted and locked, so that a large connection portion between these cords is provided. External force can be prevented from acting. In the vicinity of the conductor port 39, the wires are bound together by a band 46. Each wire derived from the conductor port 39 is connected to a charge / discharge control device (not shown).
[0074]
Finally, the front case 14 is put on the rear case 15 in a lid-to-lid manner, and the respective joint claws 25 are press-fitted into the joint holes 38 of the rear case 15. At this time, since each of the power supply modules M1 and M2 is fixed in the rear case 15 by the adhesive 52 so as not to float, the front case 14 can be easily put on the rear case 15 in a lid-fitting state. it can. Further, the fastening bosses 23, 24, 36, and 37 provided at six locations around the periphery are fastened with screws (see FIG. 2), and the front and rear cases 14 and 15 are inseparably coupled to each other to thereby provide an uninterruptible power supply. To complete. In this state, the upper and lower sides of each power supply module M1 and M2 are positioned and held by the positioning wall 16 and the case bottom wall (positioning wall), and the left and right sides of each power supply module M1 and M2 are formed by the left and right case side walls (positioning wall). Positioning is maintained.
[0075]
The obtained uninterruptible power supply is used in a state in which the bottom wall of the main body case 1 is the installation bottom surface 48 and the whole is horizontally long. In this installation posture, the central axis of the group of unit cells 7 housed in the main body case 1 is horizontal, so that an abnormal increase in the internal pressure during charging can be prevented. Therefore, there is no room for liquid leakage to occur with charging. During charging, temperature variations may occur between the cells 7. In that case, since the heat of each cell 7 can be released into the air through the heat radiation port 20, the temperature rise of the cell 7 can be prevented without using a cooling fan.
[0076]
More specifically, as shown in FIG. 8, the heat radiating port 20 is covered with a heat radiating sheet 50 made of a metal sheet having a high thermal conductivity in order to promote a heat radiating action from the heat radiating port 20. That is, the heat radiating sheet 50 is attached and fixed to the front case 14 so as to cover the outer surface of the heat radiating port 20, the connection concave portion 51 is formed for each heat radiating hole 20 to enter the inner surface of the opening, and the concave surface of the connection concave portion 51 is Adhesively fixed to the outer peripheral surface of.
[0077]
A comparative test was performed to confirm the heat radiation effect in the above embodiment. The comparative test includes three types including a front case 14 with the heat dissipation port 20 opened, a front case 14 with the heat dissipation port 20 opened and a heat dissipation sheet 50 added thereto, and a front case 14 without the heat dissipation port 20. Uninterruptible power supply was prepared. Then, the battery was charged under the same conditions, and the temperature change in the main body case 1 during and after charging was measured. The single cell 7 used was a nickel-metal hydride battery, which was charged at 0.25 coulomb.
[0078]
The chart of FIG. 9 shows the result. As is clear from this chart, the uninterruptible power supply having no heat radiating port 20 has a steep temperature rise inside the case after the start of charging and also has a high maximum temperature. Furthermore, the temperature drop after charging is the slowest.
[0079]
In the uninterruptible power supply device having the heat radiating port 20, the temperature inside the case rises slowly after the start of charging, and the temperature drop after charging is fast.
[0080]
In the uninterruptible power supply according to the embodiment of the present invention in which the heat radiating sheet 20 is added to the heat radiating port 20, the temperature rise inside the case after the start of charging is more gradual, and the temperature drop after charging is even faster. As described above, the provision of the heat radiating port 20 eliminates the exposure of the cell 7 to a high temperature state for a long time, and can greatly extend the life of the cell 7.
[0081]
For the above-described embodiment in which the power supply modules M1 and M2 were fitted into the rear case 15 and bonded and fixed with the adhesive 52, a comparative test was performed to confirm the vibration resistance characteristics. In the comparative test, two types of uninterruptible power supplies each having the case 15 after the adhesive 52 was applied and the case 15 without the adhesive 52 were prepared. Then, the rear surface of the rear case 15 of the uninterruptible power supply is set as the installation surface (horizontal installation) and the vibration is applied in the X, Y, and Z directions, and the bottom of the first section R1 in which the water absorbing sheet 45 is disposed. When the wall is set on the installation surface (vertical installation) and the vibration is applied in the X, Y, and Z directions, the vibration is performed for 2 hours in each direction under the conditions of a frequency of 10 → 50 → 10 Hz and an acceleration of 25 m / s2, respectively. The internal state of the uninterruptible power supply after the vibration test was confirmed.
[0082]
The chart of FIG. 10 shows the results of the vibration test. As is clear from this figure, in the uninterruptible power supply not using the adhesive 52, there is no breakage when it is placed horizontally, but when it is vibrated in the X and Z directions when it is placed vertically, the connection plate 8 and the output The breakage of the terminal 11 was confirmed.
[0083]
In the uninterruptible power supply according to the embodiment of the present invention in which the power supply modules M1 and M2 were adhered and fixed to the rear case 15 with the adhesive 52, the above-described damage and abnormality were not confirmed in both the horizontal and vertical installations. As described above, by using the adhesive 52, vibration of the power supply modules M1 and M2 is suppressed, and damage to the connection portion of the power supply module and the like can be prevented well, so that vibration resistance can be improved.
[0084]
(Second Embodiment) FIGS. 11 to 16 show a second embodiment of the present invention corresponding to claims 14 and 15. FIG. As described above, each of the power supply modules M1 and M2 is configured by connecting four module elements 6 with the element connection plate 9, and each module element 6 connects the seven unit cells 7 with the connection plate 8 Are connected in series, and an adhesive tape is wrapped around it to form a unit. Such power supply modules M1 and M2 are efficiently manufactured with less labor, and the output wiring 2, the first fuse 3, and the monitor lead 44 are connected to the output terminals 10 and 11 and the element connection plate 9. In order to prevent the unit cell 7 from being overheated and deteriorated or degraded during soldering, in the second embodiment, the element connection plate 9 and the output terminals 10 and 11 are configured as follows. I have.
[0085]
In FIG. 12, the element connection plate 9 includes a left-right horizontally long main wall 54 having one end rounded in a semicircle, and a connection piece 55 projecting obliquely at an angle of 45 ° from one long side of the main wall 54. And is formed by using a copper plate, a nickel thin plate, or the like, whose surface is plated, as a material.
[0086]
The semicircularly rounded peripheral edge portion 56 is provided for concentrically positioning the end of the main wall 54 when the element connection plate 9 is welded to the positive electrode terminal 7a of the unit cell 7. . For this reason, the radius of the peripheral portion 56 is formed to be equal to or slightly smaller than the radius of the positive electrode terminal 7a of the unit cell 7. The connection piece 55 is provided for soldering the monitor lead wire 44, and a lead hole 57 is provided near the protruding end thereof.
[0087]
As shown in FIG. 11, the element connection plate 9 is spot-welded to the unit cells 7 located at the connection ends of the previously formed module elements 6, and then the monitor lead wires 44 are soldered to the connection pieces 55. . In order to facilitate the soldering operation and to prevent deterioration or deterioration of the unit cell 7 due to heat during the soldering operation, the connecting piece 55 is projected obliquely from the main wall 54 so that the adjacent unit cells 7 The lead hole 57 is located at a position equidistant from the two cells 7 by facing the recess between them.
[0088]
The connection piece 55 is projected obliquely at an angle of about 45 degrees. This is because, after the monitor lead wire 44 is soldered to the connection piece 55, the connection piece 55 is connected to the peripheral surface of the cell 7 as shown in FIG. This is for bending the monitor lead wire 44 and the connection piece 55 along the battery surface.
[0089]
Although the protrusion L of the connection piece 55 in the second embodiment is set to 10 mm, the protrusion L can be appropriately selected within a range of 5 to 20 mm. The black circles in FIG. 12 indicate spot-welded portions, and six spots are welded to each unit cell 7.
[0090]
In FIG. 15, the output terminal 10 on the plus side is formed of an L-shaped press-formed product in which a horizontal lead connection arm 59 and a vertical battery connection leg 60 are integrally formed. It is formed using a nickel thin plate or the like as a material. Two lead holes 61 for soldering the connection lead of the first fuse 3 and the monitor lead wire 44 are formed in the lead connection arm 59 at intervals, and the lead near the battery connection leg 60 is formed. Between the hole 61 and the bent base end of the lead connection arm 59, a heat dissipation area E1 for preventing the unit cell 7 from being overheated during soldering is secured. The lower end of the battery connection leg 60 is bisected by a vertical groove, and a welding projection 62 is formed on each of the inner surfaces near the lower end of the bisected leg piece. Although the left and right dimensions of the heat radiation area E1 in the second embodiment are set to 10 mm, the dimensions can be appropriately selected within the range of 5 to 20 mm.
[0091]
In FIG. 15, the output terminal 11 on the minus side is formed of an L-shaped press-formed product in which a horizontal lead connection arm 66 and a vertical battery connection leg 67 are integrally formed, and a copper plate or the like whose surface is plated is used. It is formed using a nickel thin plate or the like as a material. Lead holes 68 and 69 for soldering the two output wires 2 and the monitor lead wires 44 are formed in the lead connection arm 66 adjacent to each other in front and rear. Between these holes 68 and 69 and the bent base end of the lead connection arm 66, a heat radiation area E2 for preventing the unit cell 7 from being overheated at the time of soldering is secured. The lower end of the battery connecting leg 67 is bisected by a vertical groove, and a welding projection 70 is formed on each of the inner surfaces near the lower end of the bisected leg piece.
[0092]
The two output wires 2 and the monitor lead wire 44 are soldered to the lead connection arm 66 of the output terminal 11 on the minus side in order. Therefore, the lead connection arm 66 is heated to a higher temperature, and the heat may deteriorate or degrade the cell 7. In order to prevent such deterioration of the battery, the front-rear width of the lead connection arm 66 is set larger than the front-rear width of the lead connection arm 59 of the plus side output terminal 10, and the left and right dimensions of the heat radiation area E2 are further increased. That is, the heat radiation area is increased. Although the left and right dimensions of the heat radiation area E2 in the second embodiment are set to 15 mm, this dimension can be appropriately selected within a range of 10 to 25 mm.
[0093]
The positive and negative output terminals 10 and 11 are formed by welding the projections 62 and 70 provided on the battery connection legs 60 and 67 to the positive terminal 7a and the negative terminal 7b, respectively. Integrate with It is convenient to perform this welding operation on the unit cells 7 in a single unit. However, if necessary, the module elements 6 may be assembled using the connecting plate 8 and then separately welded.
[0094]
The power supply modules M1 and M2 in the second embodiment
Connecting the positive electrode terminal 7a and the negative electrode terminal 7b of the adjacent unit cell 7 with the connection plate 8 to form the module element 6;
Connecting the positive terminal 7a and the negative terminal 7b located at the connection ends of the adjacent module elements 6.6 with the element connecting plate 9 to form two sets of module elements 6.6 in a single row;
As shown in FIG. 16, the main wall 54 of the element connection plate 9 connecting the two sets of module elements 6.6 is folded in two to form an element block 60 in which the module elements 6.6 are adjacent on the left and right. Process and
The positive terminal 7a and the negative terminal 7b located at the connection ends of the adjacent element blocks 60 are connected by the element connection plate 9, and the main wall 54 of the element connection plate 9 is bent so that the element block 60 is adjacent to the left and right power supply. Forming a module M1 (M2);
Soldering the output wiring 2, the connection lead of the first fuse 3, and the monitor lead 44 to each of the element connection plate 9 and the output terminals 10 and 11, and assembling them into the state shown in FIG. Can be.
[0095]
As described above, the connection piece 55 of the element connection plate 9 is bent along the surface of the unit cell when the power supply modules M1 and M2 are incorporated into the main body case 1. Therefore, in a state where the power supply modules M1 and M2 are housed in the rear case 15 and the front case 14 is mounted on the rear case 15, the connection piece 55 and the monitor lead wire 44 are connected to the battery and the front case as shown in FIG. 14 can be arranged without difficulty using the dead space between them.
[0096]
When the power supply modules M1 and M2 are composed of an odd number of module elements 6 in the above-described manufacturing process, after all the element blocks 60 are connected, the odd-numbered module elements 6 and the element blocks 60 are connected. The power supply modules M1 and M2 can be formed by connecting with the plate 9 and bending the element connection plate 9 in the same manner as described above. Since the element connection plate 9 can be easily bent manually, the power supply modules M1 and M2 can be easily assembled.
[0097]
The connection between the cells 7 and the connection between the module elements 6 and 6 are not limited to the order of the above-described steps, and can be assembled by another procedure. For example, the power supply modules M1 and M2 can be formed by connecting all the module elements 6 with the element connection plates 9 and bending the element connection plates 9 for each module element 6. When all of the connection plates 8 are replaced with the element connection plates 9, the unit cells 7 can be bent at any positions after being connected by the element connection plates 9, and the connection positions of the monitor lead wires 44 can be arbitrarily selected. Become.
[0098]
In addition to the above, the uninterruptible power supply of the present invention can be configured using one power supply module M1 as a power supply. In the embodiment, the module element 6 is constituted by seven unit cells 7, but the module element 6 can be constituted by an arbitrary number of five or more unit cells 7. As the temperature sensor 4, a sensor other than a thermistor can be used.
[0099]
The heat radiating port 20 does not need to be provided for each unit cell 7 and may be formed in a state where several unit cells 7 are simultaneously exposed. If necessary, the heat radiating port 20 is formed by a vertically long opening corresponding to the module element 6, and the opening surface can be covered by a group of louver walls or lattices. The joining claw 25 and the joining hole 38 may be provided on either side of the front and rear cases 14 and 15.
[Brief description of the drawings]
FIG. 1 is a vertical side view of an uninterruptible power supply.
FIG. 2 is a front view of the uninterruptible power supply.
FIG. 3 is a front view of the power supply module.
FIG. 4 is an internal front view of the front case.
FIG. 5 is an internal front view of the rear case.
FIG. 6 is an internal front view of the uninterruptible power supply with the front case opened.
FIG. 7 is a circuit diagram of a power supply module.
FIG. 8 is a longitudinal sectional side view of a main part with a partially modified heat radiation structure.
FIG. 9 is a table showing the results of a comparative test of heat radiation characteristics.
FIG. 10 is a table showing the results of a comparison test of vibration resistance characteristics.
FIG. 11 is a front view of a power supply module according to a second embodiment.
FIG. 12 is a front view of an element connection plate according to a second embodiment.
FIG. 13 is a perspective view showing a use state of the element connection plate according to the second embodiment.
FIG. 14 is a longitudinal sectional side view showing a relational structure between an element connection plate and a case according to a second embodiment.
FIG. 15 is a perspective view of a plus side output terminal and a minus side output terminal according to the second embodiment.
FIG. 16 is an explanatory view showing a step of bending the element connection plate according to the second embodiment.
[Explanation of symbols]
M1 / M2 power supply module
1 Body case
2 Output wiring
3 First fuse
4 Temperature sensor
4a Output lead wire of temperature sensor
7 cells
9-element connection plate
10 Output terminal
11 Output terminal
14 Front Case
15 Rear case
16 positioning wall
17 Fixing rib
20 Heat radiation outlet
23 Fastening boss
24 fastening boss
25 Joining claws
27 Positioning wall
28 Fixing rib
31 vertical section wall
33 cord holder
34 1st bracket
35 2nd bracket
36 fastening boss
37 fastening boss
38 Joint hole
39 Conductor port
41 Connecting plate
45 sheets
44 Monitor lead wire
52 adhesive
53 Second fuse
E1, E2 heat dissipation area
R1 1st section
R2 second section

Claims (15)

At least one power supply module configured by serially connecting a group of cells formed of cylindrical secondary batteries, an output wiring for outputting power of the power supply module, and the power supply module and the output wiring are housed. Including a main body case,
The power supply module is configured in a flat block shape by arranging a large number of the unit cells vertically and horizontally adjacently in a lying position,
The main body case is formed by joining a front case and a rear case sandwiching the front and rear surfaces of the power supply module in a lid-to-cover shape,
Inside the main body case, there are provided a first compartment for accommodating the power supply module and a second compartment for accommodating the output wiring.
At least one of the front case and the rear case is provided with a heat radiating port for releasing heat of a group of the unit cells out of the main body case,
An uninterruptible power supply device, wherein an installation bottom surface of the main body case is formed substantially parallel to a central axis of a group of the unit cells housed in the main body case. In the heat radiating port, a heat radiating sheet for promoting heat radiation of the unit cell is arranged,
The uninterruptible power supply according to claim 1, wherein the heat radiating sheet is in close contact with a part of an outer peripheral surface of the unit cell. On the inner surface of the main body case facing the first section, fixing ribs for sandwiching the front and rear of the power supply module, and positioning walls for receiving upper and lower and left and right outer lines of the power supply module are provided,
The uninterruptible power supply according to claim 1, wherein a code holder for supporting the output wiring is provided in the second section so as to protrude. The positioning wall provided in the first section includes a pair of vertical section walls that partition the first section in the left-right direction in order to position and hold adjacent power supply modules in a separated state. Item 3. The uninterruptible power supply according to item 3. 5. The uninterruptible power supply according to claim 1, wherein the power supply module is fixed to an inner surface of at least one of the front case and the rear case with an adhesive. The front case and the rear case are provided with a fastening boss provided on a joining surface of the front and rear cases, a screw for fastening and fixing these fastening bosses, and a plurality of engaging bosses provided on the joining surface of the front and rear cases and engaging with each other. It is fastened and fixed inseparably with the joint claws and joint holes,
The uninterruptible power supply according to claim 1, wherein the fastening boss protrudes from an outer surface of a peripheral wall of the case surrounding the first section. The second section is formed on an inner surface of a side of the main body case facing a plurality of the power supply modules housed in the first section,
2. The uninterruptible power supply according to claim 1, wherein a lead port for leading the output wiring out of the main body case is opened at one end of the second section. 3. The uninterruptible power supply according to claim 1, wherein a first fuse provided corresponding to the power supply module is mounted on a first bracket provided in the second section. The first fuse and the output wiring are connected by a conductive connection plate,
The uninterruptible power supply according to claim 8, wherein the connecting plate is fixed to a second bracket provided in the second section. A temperature sensor is provided corresponding to the power supply module,
The temperature sensor is arranged and fixed on the inner surface of the case wall in which the heat radiating port is formed, and the output lead wire of the temperature sensor is led out to the second section through the space occupied by the pair of vertical section walls. The uninterruptible power supply according to claim 4. A monitor lead wire for measuring a voltage of each module element constituting the power supply module is disposed in the first section,
2. The uninterruptible power supply according to claim 1, wherein a part of the monitor lead wire is led to the second section through a space occupied by the vertical partition wall. 3. It has a monitor lead wire for measuring the voltage of each module element constituting the power supply module,
The uninterruptible power supply according to claim 11, wherein a second fuse is arranged on each of the monitor leads. The uninterruptible power supply according to claim 1, wherein a water-absorbent sheet is disposed on an inner surface of a bottom wall of the first section. The power supply module is configured with a plurality of module elements unitized by connecting a plurality of unit cells in series,
The positive terminal and the negative terminal located at the output end of the adjacent module element are connected via an element connection plate,
The element connection plate includes a main wall that connects the positive electrode terminal and the negative electrode terminal, and a connection piece that is obliquely protruded from one side edge of the main wall,
A peripheral portion of at least one side end of the main wall is formed in a shape that matches an outer shape of one of the positive electrode terminal and the negative electrode terminal,
2. The uninterruptible power supply according to claim 1, wherein a plurality of the module elements are continuous in a flat block shape by folding the element connection plate in two. An output terminal welded to the positive terminal and the negative terminal located at an output end of the power supply module is formed by a lateral lead connection arm and a battery connection leg continuously bent downward at one end thereof. Yes,
The lead connection arm is provided with a lead hole for soldering a connection lead of a first fuse provided corresponding to the output wiring, the monitor lead wire, and the power supply module,
The uninterruptible power supply according to claim 1, wherein a heat radiation area is provided between the lead hole and a bent base end of the lead connection arm.

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