JP3471715B2 - Battery pressurization method for secondary battery charge / discharge device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pressurizing method for a secondary battery charging / discharging device.

[0002]

2. Description of the Related Art FIG. 7A is a front view showing the relationship between a battery and a probe of a conventional example, and FIG. 7B is an exploded perspective view showing the structure of FIG.

Conventionally, in a charging / discharging device for a secondary battery, the surface of the secondary battery having a large area (hatched portion in FIG. 7B) is
Charging or discharging under constant pressure is one of the important factors. For this purpose, a method in which a charging / discharging device usually has a pressure mechanism and pressure is applied to each battery is adopted.

However, in this method, the number of batteries to be charged or discharged and the multiplier of the applied pressure are applied to the device as they are, and the device strength is required accordingly. For example, a pressurizing mechanism is incorporated in the device, and a pressing force F [N
/ Square cm] required Pressurize the battery. Assuming that the tray holds 10 batteries, when pressure is applied to the batteries in one tray, the tray of the device on which the tray is placed is 10 × F
A force of × S is applied, and strength that can withstand this force is required. Further, since the shelf of the device is usually composed of several levels, if the level is 10 levels, the strength of the skeleton of the device needs to be 10 times stronger.

[0005]

Therefore, as one of the means for securing the strength, by replacing the material that used aluminum with iron, etc., the whole apparatus becomes heavy and, as a result, the price becomes low. It raises the problem of becoming high.

The object of the present invention is to eliminate these drawbacks,
An object of the present invention is to provide a battery pressurizing method for a secondary battery charging / discharging device using an inexpensive and lightweight device.

[0007]

A battery pressurizing method for a secondary battery charging / discharging device of the present invention is a battery pressurizing method for a secondary battery charging / discharging device having a rectangular flat cross section. At a certain height, a lock plate with a predetermined shape at a predetermined position. Left and right side plate parts that have holes for locking, and a bottom plate part. The bottom plate surface of a U-shaped frame body is wrapped with a thin metal plate. The secondary battery is placed with its terminals facing toward you, and the pressure plate in which the cylinder forming the compression spring axis is planted in the center is placed on the upper surface of the secondary battery, and the pressure spring is placed outside the cylinder. Is a substantially rectangular plate having a length approximately equal to the distance between the outer surfaces of the left and right side plate parts of the U-shaped frame body, and a hole for penetrating a cylinder is formed in the center part, and A cylindrical portion whose inner diameter is approximately equal to the diameter of the cylinder is vertically attached and fixed to the outer upper surface of the hole. After pushing down the pot lid-shaped lock plate with the operating part bulging outward at the end so that the cylinder penetrates the cylindrical part, and after pushing down the lock plate to the predetermined height against the compression spring. It is characterized in that it is rotated in the horizontal direction, and both ends thereof are fitted into the locking holes of the left and right side plates, respectively.

The height of the locking holes in the left and right side plate portions is equal to the thickness of the locking plate, and the locking holes are connected to this hole including the holes to be inserted at the time of locking, and the planar shape is a rotation for inserting and removing the locking plate. It is preferable that the holes are formed so as to form an arcuate edge along the locus of the end when moving.

A plurality of unit batteries pressurized by the above method are arranged on the same tray, or a group of these batteries are further arranged on each of a plurality of apparatus shelves. Is also more preferable.

According to a second aspect of the present invention, there is provided a battery pressurizing method for a secondary battery charging / discharging device, comprising: a battery pressurizing method for a secondary battery charging / discharging device having a square cross section. Now, an upside-down U-shape consisting of left and right side plate parts that have a hole or notch for a tray lock of a predetermined shape in a predetermined position, and a top plate part that has a hole for allowing the pressing rod to penetrate in the center part. Attach both ends of the tray to the locking holes or notches of the shape frame, arrange the tray, and place the secondary battery wrapped with a thin metal plate on the tray with its terminals facing toward you. Then, the tension plate with one end engaged with the center of the lower surface of the top plate of the inverted U-shaped frame body and the other end engaged with the upper surface of the pressure plate causes the pressure plate to move slightly inside the U-shaped frame inside the secondary battery. Hang it so that it is located above, and insert the pressure rod into the hole in the center of the top plate. After contact with the tip to the pressing plate upper surface it is, is characterized by comprising to lock the top panel of the shaped frame member of inverted U the pressure rod to rotate the handle.

It should be noted that a plurality of unit batteries pressurized by the above-mentioned method are arranged on the same tray, and a tray-reinforcing fixing rod is penetrated immediately below each of the plurality of tray rows, or Further, it is more preferable that a plurality of battery groups arranged on the same tray by this method are further arranged on a plurality of apparatus racks.

According to the above-mentioned means, the present invention can be applied to individual batteries in a charging / discharging device for a prismatic secondary battery which requires a constant pressure on a surface having a large area of the battery during charging or discharging. The pressure is designed so that it does not transmit as accumulated force to the charging / discharging device or tray.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1A is a front view showing an embodiment of a battery pressurizing method of the present invention, FIG. 1B is a top view of FIG.
2 is a perspective view showing the structure of the battery of FIG. 1, and FIG.
4 is a top view schematically showing a state in which a large number of the batteries of FIG. 3 are arranged on the same tray, and FIG. 4 is a front view schematically showing a state of the batteries of FIG. 3 further arranged in a plurality of stages.

As shown in the front view and the top view of the present invention in FIGS. 1 (a) and 1 (b), with respect to the rectangular secondary battery 6,
According to the present invention, the pressing plate 4, the cylinder (compression spring shaft)
1, a compression spring 2, a lock plate 3, and a U-shaped frame body 5.

The left and right side plate portions 5a and 5b have a predetermined height and a predetermined shape and a lock plate locking hole 5d is formed at a predetermined position. The left and right side plate portions 5a and 5b and the bottom plate portion 5c are U-shaped. On the bottom plate 5c of the frame body 5, the secondary battery 6 wrapped with a thin metal plate is placed with its terminals 6b and 6c facing toward the front side, and the cylinder 1 forming the compression spring axis is planted in the central portion. The pressing plate 4 is placed on the upper surface of the secondary battery 6, the pressing spring 2 is wound around the outside of the cylinder 1, and the left and right side plate portions 5a and 5b of the U-shaped frame 5 are provided between the outside surfaces thereof. A substantially rectangular plate having a length substantially equal to the distance, a hole 3a through which the cylinder 1 is penetrated is formed in the central portion, and a cylindrical portion 3b having an inner diameter substantially equal to the diameter of the cylinder 1 is formed on the outer upper surface of the hole 3a. Is vertically fixed, and the operation portion 3 bulged outward at the upper end of the cylindrical portion 3b.
The lock plate 3 in the shape of a pot lid provided with
Push down so that the cylinder 1 penetrates b, and lock plate 3
Is pushed down against the compression spring 2 to a predetermined height,
Rotate in the horizontal direction so that both ends are left and right side plate portions 5 respectively.
It is characterized by being fitted in the locking holes 5d of a and 5b.

The lock holes 5d of the left and right side plate portions 5a and 5b have a height equal to the thickness of the lock plate 3 and include a hole to be inserted at the time of locking, and the lock hole 5d is connected to the hole and has a planar shape of the lock plate 3.
Are formed so as to form an arcuate edge along the locus of the end when rotating for insertion and removal.

In this structure, when the battery 6 is set on the U-shaped frame 5 and the lock plate 3 is pushed, the spring 2 contracts and the repulsive force is transmitted from the pressing plate 4 to the battery 6.
Continue to push the lock plate 3, the lock plate 3 is a U-shaped frame 5
When the lock plate 3 is rotated to fit in the lock hole 5b when the lock hole 5b is provided, the position of the spring 2 is fixed and a constant pressure can be applied to the battery 6.

The pressure applied to the battery 6 is transmitted only to the U-shaped body 5 and the lock plate 3, and no force is transmitted to the charging / discharging device or the tray.

Therefore, since the pressure applied to each battery is not transmitted to the charging / discharging device or the tray, the charging / discharging device or the tray has almost the same strength as the battery which does not require pressurization, and the weight of the device is reduced. It is possible to obtain an effect that the device becomes inexpensive.

This will be further described with reference to FIG.
The battery 6 is a prismatic secondary battery that requires a pressure of F [N / cm 2] during charging, and the area to which the pressure is applied is S [cm 2]. The pressure applied to the battery is transmitted to the U-shaped frame body 5 as a pulling force Fa = F × S / 2 [N] and to the lock plate 3 as a bending force Fb = F × S [N], and the pressing force is transmitted. Since all is consumed in these parts, it is only necessary that these related parts have the strength to withstand this force. Therefore, in the method according to the present embodiment, the charging / discharging device main body and the tray have a structure in which the force exerting pressure on the battery does not influence at all, and since these parts are also lightweight, these parts and the battery are set on the tray. The total weight when placed on a charging / discharging device can be reduced, resulting in inexpensive equipment.

Also, a plurality of unit batteries 6 pressurized by the above method are arranged on the same tray 7 (FIG. 3), or further, these batteries 6 ₁ , 6 ₂ ,
A group of 6 ₃ , ... is further provided with a plurality of device shelves 9 ₁ ,
9 ₂ , 9 ₃ ... Some of them are arranged on top (Fig. 4).

In FIG. 4, the cylinder 1 and the cylindrical portion 3b of FIG. 1 are omitted for the sake of simplicity. Further, in the structure of FIG. 3, the lock plate 3 is provided for each row.
The pressing plate 4 and the pressing plate 4 may be one common plate. Further, in the structure of FIG. 4, a long column 1 (not shown) for vertical operation has a hole for penetration so that the entire pressing can be performed all at once. That is, the trays 7 ₂ , 7 ₃ ,
... and the device shelves 9 ₂ , 9 ₃ , ... are opened.

Next, the second embodiment will be described.

FIG. 5 is a front view showing the second embodiment.
FIG. 6 is a top view schematically showing a state in which a large number of the batteries of FIG. 5 are arranged on the same tray.

In the previous embodiment, the present invention is applied to the method in which the pressing force is not applied to the tray at all, but it is also applicable to the method in which the pressing force is applied to the tray. The structure is shown in FIG. In this drawing, the tray 16 is set with the battery 16 mounted.

In order to do so, the bracket (inverted U-shaped frame body) 15 has an upside down structure as compared with the U-shaped frame body 5 of FIG.

The battery pressurizing method for the secondary battery charging / discharging device according to the second aspect of the present invention is the battery pressurizing method for a secondary battery charging / discharging device having a square cross section, wherein the left and right side plate portions 15 are formed.
b and 15c have predetermined heights, left and right side plate portions 15b and 15c in which a tray lock hole 15d or a notch having a predetermined shape is formed at a predetermined position, and a pressing rod 13 is inserted into the central portion,
Top plate portion 15a having a hole 15f for locking
Both ends of the tray 17 are attached to the locking holes 15d or the notches of the bracket 15 which is an upside down U-shaped frame body, and the tray 17 is arranged, and the tray 17 is wrapped with a thin metal plate. The secondary battery 16 is placed with its terminal facing toward the front side, one end of which is engaged with the center of the lower surface of the top plate 15a of the inverted U-shaped frame 15 and the other end of which is engaged with the upper surface of the pressing plate 14. The pressing plate 14 is suspended by the compression spring 12 so as to be positioned slightly above the secondary battery 16 in the U-shaped frame body 15, and the pressing rod 13 is inserted into the hole 15f in the central portion of the top plate portion 15a. It is characterized in that after its tip is brought into contact with the upper surface of the pressing plate 14, the handle 13a is rotated to lock the pressing rod 13 on the bracket top plate portion 15a.

A plurality of unit batteries 16 pressurized by the above-mentioned method are arranged on the same tray 17, and a tray-reinforcing fixing rod 18 is penetrated immediately below each of the plurality of tray rows. (FIG. 6) Alternatively, in many cases, a plurality of battery groups arranged on the same tray by this method are further arranged on each of a plurality of apparatus racks (not shown).

The pressing rod 13 is the pressing plate 14 and the tray 1.
The battery 6 is pressed so that the tray 17 is sandwiched between the mounting portion 7 and the mounting portion. When the strength of the tray 17 is verified with the numerical values of the first embodiment, a force of 10 [N / square cm] is applied to the tray when it is pressed. However, since the compressive strength of the material normally used for the tray 17 is 7000 [N / square cm], it can be used without any problem. Therefore, in this embodiment, the related structural parts can be set without moving the battery 16 from the tray 17, and in other words, these parts can be removed in the process that does not require pressurization, which improves the workability. Is obtained.

Moreover, since the fixing rod 18 is rod-shaped, it is set in several necessary related component trays 17 by one operation by connecting them at the positions where the individual lock holes 15e are aligned as shown in FIG. it can. Therefore, the workability is further improved.

[0032]

As described above, according to the present invention, the left and right side plates have a predetermined height and a predetermined shape at predetermined positions, and the left and right side plates are provided with holes for locking the lock plate. The secondary battery is placed on the bottom plate surface of the V-shaped frame, and the pressure plate in which the cylinder forming the compression spring axis is planted in the center is placed on the upper surface of the secondary battery, and is placed outside the cylinder. Winding a pressure spring, push down the lock plate that is almost rectangular with a length approximately equal to the distance between the outer surfaces of the left and right side plate parts of the U-shaped frame body so that the cylinder part penetrates the cylinder, and lock it. The board
After pressing down against the compression spring to a predetermined height, rotate it horizontally, and fit both ends into the locking holes on the left and right side plates. Or by arranging these in multiple stages, an inexpensive and lightweight device was used.
There is an effect that a battery pressurizing method in a secondary battery charging / discharging device can be provided.

[Brief description of drawings]

1A is a front view showing an embodiment of a battery pressurizing method of the present invention, and FIG. 1B is a top view of FIG. 1A.

FIG. 2 is a perspective view showing the structure of the battery of FIG.

FIG. 3 is a top view schematically showing a state in which a large number of the batteries of FIG. 1 are arranged on the same tray.

FIG. 4 is a front view schematically showing a state in which the batteries of FIG. 3 are further arranged in a plurality of stages.

FIG. 5 is a front view showing a second embodiment example.

6 is a top view schematically showing a state in which a large number of the batteries of FIG. 5 are arranged on the same tray.

FIG. 7A is a front view showing the relationship between a battery and a probe of a conventional example, and FIG. 7B is an exploded perspective view showing the structure of FIG. 7A.

[Explanation of symbols]

1 Cylinder (compression spring shaft) 2.12 Compression spring 3,3 ₀ Lock plate 3a Cylinder penetration hole 3b Lock plate operating part 4,14 Pressing plate 5 U-shaped frame body 5a Bottom plate parts 5b, 5c, 15b, 15c Side plates Parts 5d, 15d, 15e Lock holes 6, 6 ₁ , ... 6 ₃₀₃ , 16, 16 ₁ , ... 16 _j Secondary battery 6a Electrodes 6b, 6c, 16b, 16c Terminals 6d, 16d Battery top plate 6e, 16e Battery bottom Face plates 7, 7 ₁ , 7 ₂ , 7 ₃ , ... 17 Trays 9 ₁ , 9 ₂ , 9 ₃ , ... Device shelf 13 Push bar 13a Handle 15 Bracket (inverted U-shaped frame) 15a Top plate part 18 Fixing bar 71, 72 probe array substrate 73, 74 probe 76 secondary battery 76a electrode 76b terminal 76c lid 76d case 77 battery storage tray

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masaaki Sekiya, 484 Harigagaya-cho, Utsunomiya-shi, Tochigi NCE Mobile Energy Co., Ltd. (58) Fields investigated (Int.Cl. ⁷ , DB name) H01M 2/10 H01M 10/04 H01M 10/44

Claims (7)

(57) [Claims] 1. A battery pressurizing method in a charging / discharging device for a secondary battery having a rectangular flat cross section, wherein a hole for locking a lock plate of a predetermined shape is formed at a predetermined height and a predetermined position of a left right side plate. On the bottom plate surface of the U-shaped frame composed of the left and right side plate parts and the bottom plate part, the secondary battery formed by being wrapped with a thin metal plate is placed with its terminals facing toward the front side, and the pressing spring A pressing plate in which a columnar shaft is planted in the center is placed on the upper surface of the secondary battery, a compression spring is wound around the column, and the left and right side plates of the U-shaped frame are mounted. A substantially rectangular plate having a length substantially equal to the distance between the outer surfaces of the column, a hole through which the cylinder is formed is formed in the central portion, and the inner surface of the outer upper surface of the hole is approximately equal to the diameter of the cylinder. The cylindrical portion is vertically fixed, and the operation portion bulging outward is provided at the upper end portion of the cylindrical portion. Push down the pot lid-shaped lock plate that has been scraped so as to penetrate the cylinder into the cylindrical portion, push down the lock plate to a predetermined height against the compression spring, and then rotate in the horizontal direction. And both ends thereof are fitted into the locking holes of the left and right side plate portions, respectively, and the battery pressurizing method of the secondary battery charging / discharging device is characterized in that. 2. The lock holes of the left and right side plate portions have a height equal to the thickness of the lock plate and include a hole to be fitted and inserted at the time of locking, and are connected to the hole to have a planar shape for inserting and removing the lock plate. The battery pressing method for a secondary battery charging / discharging device according to claim 1, wherein the battery pressing method is provided so as to form an arc-shaped edge portion along a locus of an end portion at the time of rotation. 3. A battery pressing method for a secondary battery charging / discharging device, wherein a plurality of unit batteries pressurized by the method of claim 1 are arranged on the same tray. 4. A battery pressing method for a secondary battery charging / discharging device, wherein a plurality of battery groups arranged on the same tray by the method of claim 3 are further arranged on each of a plurality of stages of device shelves. 5. A battery pressurizing method for a secondary battery charging / discharging device having a square cross section, wherein a tray lock hole or notch is formed at a predetermined height and at a predetermined position of the left right side plate. Both ends of the tray are opened, and both ends of the tray are inserted into the locking holes or notches of the inverted U-shaped frame body including the top plate having a hole for allowing the pressing rod to penetrate in the central portion. After mounting, the tray is placed, and the secondary battery, which is formed by being wrapped with a thin metal plate, is placed on the tray with its terminals facing toward the front side, and one end is the top plate of the inverted U-shaped frame. By a tension spring engaged with the central portion of the lower surface of the portion and the other end with the upper surface of the pressing plate, the pressing plate is hung so as to be positioned slightly above the secondary battery in the inverted U-shaped frame body, Insert the push rod into the hole in the center of the top plate and push the tip. After contact with the plate upper surface, characterized in that it comprises a pressure rod to rotate the handle to lock the top panel of the shaped frame member of inverted U, battery pressurizing method of the rechargeable battery charging and discharging device. 6. A plurality of unit batteries pressurized by the method of claim 5 are arranged on the same tray, and a tray-reinforcing fixing rod penetrates directly under each of the plurality of tray rows. Method of pressurizing battery for secondary battery charging / discharging device. 7. A battery pressurizing method for a secondary battery charging / discharging device, wherein a plurality of battery groups arranged on the same tray by the method of claim 6 are further arranged on each of a plurality of stages of device shelves.