JP3287194B2 - Storage battery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage battery having a cover for covering an upper part of a battery case.

[0002]

2. Description of the Related Art A storage battery typified by an automobile battery has a structure in which a group of electrodes is housed in a battery case, and an upper opening of the battery case is closed by a lid. The positive electrode plate and the negative electrode plate are integrated at the upper part of the electrode plate group, and the positive electrode terminal and the negative electrode terminal provided on the upper surface of the lid are connected through the lid. Also, when the internal pressure rises in the battery,
A safety valve for mitigating this is generally provided.

[0003] The structure of the upper surface of a lid of a commonly used conventional storage battery is such that a positive electrode terminal and a negative electrode terminal are arranged at corners of the upper surface of the lid, and a safety valve is arranged in parallel with the terminals. The gas discharged from each of these safety valves is discharged from a mounting gap of the upper lid fitted to the lid while holding the safety valve, or is discharged to the outside via an explosion-proof filter provided in a passage passing through the upper lid. Was. This explosion-proof filter attachment part had a structure protruding from the upper surface of the upper lid.

The terminals are provided at the corners of the lid and one step below the upper surface of the lid. When batteries having these terminals are connected in series, the arrangement of the batteries is defined in a certain direction. However, there is a problem that the wiring is complicated or the wiring is complicated and the wiring work becomes complicated.

[0005] Further, conventionally, a suspension hook portion for supporting the battery is provided on the side surface of the lid in the battery.
Or it was necessary to lower the battery case.

[0006]

However, in such a conventional terminal, the terminals protruding from the upper surface of the lid tend to come into contact with each other, which is likely to cause a trouble such as a short circuit.

On the other hand, when the terminal as described above is provided at a corner and one step below the upper surface of the lid,
When batteries are connected in series, the arrangement of the batteries is defined in a certain direction, and there is a problem that a large space is required.

Alternatively, the types of connection lead wires are increased, and wiring work is complicated, and erroneous wiring is liable to occur.

Further, if an exhaust pipe communicating exhaust gas from the safety valve is provided so as to protrude from the upper surface of the lid, the total height of the battery is increased, resulting in a battery having poor volumetric efficiency.

Further, when a heavy storage battery is hung, a large load is applied to the hook portion of the battery and the hook portion is located on the side surface of the lid. Was. In addition, a hook structure having a relatively large shape has been adopted to prevent the hook from being broken. Therefore, there is a problem that the overall height of the battery is increased, or the battery case is reduced, and the effective volume is reduced.

An object of the present invention is to solve these problems, and an object of the present invention is to provide an efficient storage battery in which the battery capacity of the storage battery is increased and the dead space in the assembled battery is small.

[0012]

In order to achieve the above object, according to the present invention, a terminal is provided at the center of both ends of the upper surface of a lid, and the lid is raised to a position higher than the tip of the terminal so as to surround the periphery of the terminal mounting surface. top is raised to a safety valve disposed to the near-diagonal of the ridges, the central ridge is provided with a common exhaust chamber communicating with the safety valve.

An exhaust pipe is provided symmetrically in a concave portion on the side of the central portion of the raised portion at an external outlet of the collective exhaust chamber communicating with the safety valve.

Further, a safety valve is provided on the upper surface of the lid, a collective exhaust chamber communicating with the safety valve is provided integrally with the lid, and an explosion-proof filter is provided in the collective exhaust chamber and opened to the outside.

[0015] The terminal provided at both the central portion of the upper surface of the lid, is raised to the upper surface of the cover so as to surround the periphery of the terminal mounting surface, provided in the concave portion and the raised portion side provided on該隆Okoshi section plane The suspension hook portion is formed through the hole, and the suspension hook portion is disposed on a near diagonal line of the lid.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the storage battery according to the present invention, a wall is formed at a position higher than the terminal tip around the terminal, so that even if a metal part or the like is on the storage battery, a short circuit occurs between the terminals. It does not cause trouble.

[0017] Since the safety valve is disposed in the ridge surface is a top surface of the lid, the upper space portion of the storage battery can be effectively utilized, the liquid injection step and chemical during manufacturing, the electrolyte according to the liquid level rise during charging Troubles such as overflows are greatly reduced.

In particular, the safety valves provided at both end cells having terminals of the storage battery are arranged on the left or right with the terminals interposed therebetween, and when the safety valves provided for each cell are sequentially arranged,
When the position of the safety valve in the cell at one end is on the left, the arrangement is aligned on a straight line by setting the safety valve in the cell at the other end to the right.
As a result, the center of the arrangement line also coincides with the center of the storage battery lid.

The common exhaust chamber communicating with the safety valve In the center of the lid, so that the external outlet is open to凹窟of the central side of the raised portion, accessory components such as piping exceed the overall height of the battery And can be arranged and set compactly.

Since the explosion-proof filter is arranged in the collective exhaust chamber communicating with the safety valve and opened to the outside, even if H ₂ gas is generated inside the storage battery, it is possible to prevent the storage battery from exploding or exploding. .

Further, by providing the safety valve of the cell at one end on a near diagonal line opposite to the near diagonal line in which the safety valves are arranged, the suspension hook can be arranged on the near diagonal line of the lid.

Therefore, there is no protruding portion on the upper surface of the upper lid, and when the battery is assembled, the types of wirings connecting the batteries are reduced, the operation is simplified, the total height of the storage battery can be reduced, and the internal volume can be reduced. Large, battery capacity can be increased.

[0023]

An embodiment of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a perspective view of a storage battery of this embodiment. Reference numeral 1 denotes a battery case of a storage battery, which houses an electrode plate group (not shown) including a positive electrode plate, a negative electrode plate, and a separator. The upper opening of the battery case 1 is sealed by welding a lid 2. ing. The both end central portion of the upper surface of the lid 2 is the terminal 3 is provided, the upper surface of the lid 2 to a position higher than the tip of the terminal 3 so as to surround the periphery of the mounting surface 4 of the terminal 3 is raised, in the ridge 5 On the near diagonal line of the lid 2, a safety valve 6 for a storage battery is provided.

FIG. 2 is a view in which the upper lid of FIG. 1 is removed, and FIG.
Is a partially enlarged view of FIG. Reference numeral 7 denotes a collective exhaust port which opens to the outside in communication with the safety valve 6, and reference numeral 8 denotes a safety valve 6 provided on a near diagonal line and an upper lid for keeping the airtightness of the upper opening of the arrangement chamber 9 of the safety valve 6.

An array chamber 9 for the safety valve 6 and a collective exhaust chamber 10
Between them, a weir 15 is provided, and the weir 15 prevents an electrolyte which may leak slightly into the arrangement chamber 9 through the safety valve 6. This prevents the electrolyte in the storage battery from leaking out of the collective exhaust chamber.

FIG. 4 is a partially enlarged sectional view taken along line AA shown in FIG. The collective exhaust chamber 10 communicates with the arrangement chamber 9 of the safety valve 6 provided at the center of the raised portion 5 , and the collected exhaust gas is exhausted through the collective exhaust port 7 opened to the outside. An exhaust pipe 12 is provided symmetrically in a concave portion 13 on a side surface of a central portion of the raised portion 5 at an external outlet portion 11 of the collective exhaust chamber 10. The collective exhaust chamber 10 is provided with an explosion-proof filter 14 to prevent short circuit communication between the arrangement chamber 9 of the safety valve 6 and the outside.

FIG. 5 shows another embodiment of the structure shown in FIG. 4, in which a collective exhaust chamber 10 communicating with a safety valve arrangement chamber 9 is provided.
The exhaust pipe section 1 is connected to the external outlet section 11 of the collective exhaust chamber 10.
2 is provided integrally with the lid 2, and the collective exhaust chamber 10 is provided with an explosion-proof filter 14 and is opened to the outside.

(Embodiment 2) FIG. 6 is a perspective view of a storage battery of this embodiment. Reference numeral 1 denotes a battery case of a storage battery, which houses an electrode plate group (not shown) including a positive electrode plate, a negative electrode plate, and a separator. The upper opening of the battery case 1 is sealed by welding a lid 2. ing. Terminals 3 are provided at both end corners of the upper surface of the lid 2, and the upper surface of the lid 2 is raised to a position higher than the tip of the terminal 3 so as to surround the mounting surface 4 of the terminal 3.
A raised portion is formed . The arrangement chamber of the safety valve is arranged parallel to the long side surface of the ridge 5 .

FIG. 7 is a partially enlarged sectional view taken along the line BB shown in FIG. A collective exhaust chamber 10 communicating with the safety valve array chamber, and an exhaust pipe section 12 at an external outlet 11 of the collective exhaust chamber 10 are provided integrally with the lid 2, and the collective exhaust chamber 10 includes an explosion-proof filter 14. It has a structure that opens to the outside.

(Embodiment 3) FIGS. 8 and 9 are partial cross-sectional views showing a suspension hook portion of the present embodiment. FIG. 8 is a partially enlarged cross-sectional view taken along the line CC shown in FIG. FIG. 9 shows FIG.
FIG. 3 is a partially enlarged sectional view taken along line DD shown in FIG.

Terminals 3 are provided at the center of both ends of the upper surface of the lid 2, a terminal mounting surface 4 is provided around the terminals 3, and the upper surface of the lid 2 is raised so as to surround the terminal mounting surface 4. Then, a recess 16 provided in the raised portion 5 and a hole 17 provided in the side surface of the raised portion are penetrated to form a suspension hook portion 18, and the suspension hook portion 18 is disposed on a near diagonal line of the lid 2. I have.

[0033]

As described in detail above, the storage battery of the present invention has the following features.
Even if metal parts are placed on the top surface of the storage battery, there is no problem of short-circuiting between the terminals, the upper space inside the storage battery can be used effectively, and the liquid injection process during manufacturing, formation, and liquid level during charging Troubles such as overflow of the electrolyte due to the rise can be greatly reduced. In addition, since the safety valve provided on the storage battery lid is disposed on either the left or right across the terminal, the arrangement is arranged in a straight line, and the jigs and tools for the liquid injection step and the like can be neatly arranged and simplified. .

On the other hand, since the exhaust pipe is opened in the concave portion on the central side surface of the raised portion of the lid, accessories such as piping can be compactly arranged and set without exceeding the overall height of the storage battery. Has an explosion-proof filter, which can prevent problems such as explosion and explosion of storage batteries due to ignition.

Further, since the suspension hook portion is disposed on the near diagonal line on the opposite side of the safety valve, stable suspension of the storage battery can be performed.

Therefore, there is no protruding portion on the upper surface of the lid,
In the case of assembled batteries, the type of wiring connecting each battery is reduced, work is simplified, and the overall height of the storage battery can be reduced,
It becomes a battery pack with a large internal volume, an increased battery capacity,
A storage battery that can have an efficient arrangement structure can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a storage battery according to an embodiment of the present invention.

FIG. 2 is a diagram showing a state in which an upper lid of the storage battery shown in FIG. 1 is removed.

FIG. 3 is a partially enlarged view of FIG. 2;

FIG. 4 is a partially enlarged sectional view taken along line AA shown in FIG. 1;

FIG. 5 is a diagram showing another embodiment of FIG. 5;

FIG. 6 is a perspective view of a storage battery according to another embodiment of the present invention.

FIG. 7 is a partially enlarged sectional view taken along line BB shown in FIG. 6;

8 is a partially enlarged cross-sectional view taken along line CC shown in FIG.

9 is a partially enlarged sectional view taken along line DD shown in FIG.

[Explanation of symbols]

1 battery jar 2 lid 3 terminal 4 terminal mounting surface 5 ridges 6 safety valve 7 collecting exhaust port 8 upper lid 9 sequence chamber 10 collecting exhaust chamber 11 outside the outlet section 12 the exhaust pipe 13凹窟portion 14 proof filter 15 weir 16 recess 17 hole 18 Suspension hook

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01M 2/02-2/12 H01M 10/00-10/34

Claims (5)

(57) [Claims] 1. A power generating element is housed in a housing having an open upper part, and the opened upper part is closed by a lid, and two terminals connected to the power generating element are provided on the lid. is the terminal Ri by ridges provided on the upper surface of the lid
A low蓄 battery, near the diagonal of the array chamber to said protuberance lid
A safety valve is provided in the array chamber,
A central exhaust chamber communicating with the safety valve is provided in the center of the array chamber
A storage battery characterized by having been obtained. Wherein the exhaust pipe that communicates with the outside collector if the exhaust chamber
Storage battery of claim 1, wherein but which is characterized in that provided symmetrically to凹窟portion provided in a central portion side of the uplift portion. Wherein the exhaust side to the outside of the collecting exhaust chamber, characterized in that the explosion-proof filter provided claim 1 or 2
The storage battery as described. 4. A common exhaust chamber to the safety valve communicates with an exhaust pipe to the outside of the collecting exhaust chamber, according to any one of claims 1 to 3, characterized in that provided in the cover and integrally Storage battery. 5. The terminal is provided at the center of both ends of the upper surface of the lid,
A raised portion is provided so as to surround at least a part of the periphery of the terminal, and a suspension hook portion is provided which penetrates a concave portion provided on the upper surface of the raised portion and a hole provided on a side surface of the raised portion. The storage battery according to any one of claims 1 to 4, wherein the support hook portion is disposed on a near diagonal line of the lid.