CN203859177U - Flat-laminated four-terminal high-capacity battery - Google Patents

Abstract

The utility model discloses a flat-laminated four-terminal high-capacity battery, which belongs to the technical field of a lead-acid storage battery. The flat-laminated four-terminal high-capacity battery comprises a shell and an upper cover which is matched with the shell, wherein a cluster group which is matched with the shell is arranged in the shell, the cluster group comprises a plurality of positive plates and a plurality of negative plates, which are horizontally and alternately arranged in a laminating manner, a separation plate is arranged between every two adjacent positive plate and negative plate, two positive tabs are symmetrically arranged on the middle points of two opposite edges of each positive plate, two negative tabs are symmetrically arranged on the middle points of two opposite edges of each negative plate, each positive tab is connected with a positive bus-bar, one side end of the positive bus-bar is horizontally connected with a positive terminal, each negative tab is connected with a negative bus-bar, one side end of the negative bus-bar is horizontally connected with a negative terminal, and both the positive terminal and the negative terminal are arranged at the upper side end of the cluster group. By adopting the flat-laminated four-terminal high-capacity battery, the high assembling pressure can be maintained, the large-current discharging performance of the battery can be improved, the capacity of the battery can be increased, and the service life of the battery can be prolonged.

Description

Flat-stack four-terminal high-capacity battery

technical field

The utility model relates to the technical field of lead-acid batteries, in particular to a flat stacked four-terminal high-capacity battery.

Background technique

Conventional battery stacking method is vertical stacking. The disadvantages are: as the battery is used for a long time, its electrolyte will gradually decrease. The expansion in the lamination direction causes the plastic shell to gradually bulge and deform, and eventually it cannot be used.

Secondly, the directions of the positive and negative lugs are on the same side, and the lead-out of the bus bar is also on the same side. The lead paste on the (upper) board surface close to the bus bar has a high utilization rate, and the lead paste on the board surface (lower part) far from the bus bar is higher. The paste utilization rate is low, so the lead paste on the upper board surface is easily softened and peeled off if it is used too much. Although the lower part is not used highly, the charging acceptance is also small, so long-term undercharging may easily cause the lead paste to be sulfated and become invalid. So the battery life is short.

Utility model content

In order to overcome the problems in the prior art, the utility model provides a flat-stacked four-terminal high-capacity battery that improves the high-current discharge performance of the battery and increases the battery capacity and service life.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a flat-stacked four-terminal high-capacity battery, including a casing and an upper cover matched with the casing, and a matching cluster group is arranged in the casing , the airtight space formed by the upper cover and the casing is used to seal the cluster group, the cluster group includes positive and negative plates stacked horizontally and staggered, and a separator is arranged between the adjacent positive plates and negative plates, The negative plate is one more than the positive plate, and two positive tabs are symmetrically arranged at the midpoints of the two opposite sides of the positive plate, and two positive ears are symmetrically arranged at the midpoints of the two opposite sides of the negative plate. Two negative pole ears, the two positive pole ears and two negative pole ears are arranged alternately, a positive bus bar is connected to the positive pole ears, a positive terminal is connected to the side end of the positive bus bar, and the negative pole ears are connected to There is a negative bus bar, one end of the negative bus bar is horizontally connected with a negative terminal, and both the positive and negative terminals are arranged at the upper end of the cluster group.

The upper cover is provided with five valve holes and four terminal holes matched with the terminals, and the five valve holes are respectively arranged at the four corners and the center of the upper cover.

The horizontal section of the housing is square, and the midpoints of the four sides of the housing are in the shape of a "convex".

The partitions are made of fiberglass.

The beneficial positive effect of the utility model is:

(1) The battery cluster group can maintain a high assembly pressure (conventional battery assembly pressure is 30~80Kpa, this battery is 90~120Kpa), the battery shell will not bulge, so the electrolyte is not easy to stratify, and the lead paste is not easy to loose Shedding, ultimately extending battery life by 30%;

(2) Each pole plate has two tabs, which are combined into 4 busbars. The discharge capacity of the lead paste is high, the battery capacity is increased by 10%, and the high current performance of the battery is enhanced by 15%. At the same time, it can completely avoid short circuit or poor contact. Ensure normal power supply; the 4 sides of the shell are "convex" ridges, the strength is increased, the battery's collision resistance is enhanced, and high endurance is ensured, increasing the endurance by 33%;

(3) Since each plate is symmetrically distributed with bipolar tabs, the consistency of the lead paste reaction in each part is improved, and the battery is not easy to cause a single plate to fall behind and cause capacity attenuation;

(4) There are five valve holes on the upper cover of the battery, which improves the sensitivity of opening and closing, and avoids battery scrapping or safety accidents due to failure of a certain valve hole.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic structural diagram of the internal cluster group of the utility model.

In the figure: 1. Negative terminal, 2. Upper cover, 3. Valve hole, 4. Housing, 5. Negative plate, 6. Separator, 7. Positive plate, 8. Positive bus bar, 9. Positive terminal, 10 , Positive pole ear, 11, negative pole ear, 12, negative bus bar.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.

Referring to Fig. 1 and Fig. 2, a flat stacked four-terminal high-capacity battery of the present invention includes a case 4 and an upper cover 2 matched with the case 4, the horizontal section of the case 4 is square, and the case The positions of the midpoints of the four sides of 4 are in the shape of a "convex" shape, and the housing 4 is provided with a matching cluster group, and the airtight space formed by the upper cover 2 and the housing 4 is used to seal the cluster group, The shell and the upper cover are bonded and sealed to avoid electrolyte overflow. The cluster group includes positive plates 7 and negative plates 5 that are horizontally stacked and staggered. The positive and negative plates are lead paste, which is the main material for storing electricity. A separator 6 is arranged between the adjacent positive plate 7 and the negative plate 5. The separator 6 is made of glass fiber. It can store the electrolyte and provide the electrolyte in time for the pole plate. The negative plate 5 is one more than the positive plate 7, and two positive pole ears 10 are symmetrically arranged at the midpoints of the two opposite sides of the positive plate 7. Two negative tabs 11 are symmetrically arranged at the midpoints of the two opposite sides of the negative plate 5, the two positive tabs 10 and the two negative tabs 11 are arranged alternately, and the positive busbars 10 are connected to 8. One end of the positive bus bar 8 is horizontally connected with a positive terminal 9, the negative pole ear 11 is connected with a negative bus bar 12, and one side end of the negative bus bar 12 is horizontally connected with a negative terminal 1, so The above-mentioned positive and negative terminals (9, 1) are all arranged on the upper side of the cluster group. Under the action of the electrolyte, the power of the cluster group is imported or exported through the tabs, busbars and terminals.

The upper cover 2 is provided with five valve holes 3 and four terminal holes matching the terminals (9, 1), the five valve holes 3 are respectively arranged at the four corners and the center of the upper cover 2, and There are five valve holes on the cover. When the internal air pressure of the battery exceeds 50Kpa, the exhaust will be automatically opened, and the exhaust will be closed when it is lower than 30Kpa, so as to avoid long-term open water loss, and at the same time avoid deformation of the shell due to high internal air pressure without exhaust. Five valve holes It is conducive to the timeliness of exhaust and closing, avoiding the untimely opening and closing of a single valve hole of a conventional battery, and at the same time avoiding the failure of a certain valve hole to cause the battery to be scrapped or a safety accident to occur.

Claims (4)

1. A flat-stacked four-terminal high-capacity battery, comprising a housing and an upper cover matched with the housing, the housing is provided with a matching cluster group, and the enclosed space formed by the upper cover and the housing It is used to seal the cluster group, and it is characterized in that: the cluster group includes positive plates and negative plates arranged horizontally and staggeredly, a separator is provided between the adjacent positive plates and negative plates, and the negative plates are more than the positive plates One piece, two positive tabs are symmetrically arranged at the midpoints of the two opposite sides of the positive plate, and two negative tabs are symmetrically arranged at the midpoints of the two opposite sides of the negative plate, the two The positive pole ear and two negative pole ears are arranged alternately, the positive pole ear is connected with a positive bus bar, one end of the positive bus bar is horizontally connected with a positive terminal, the negative pole ear is connected with a negative bus bar, and the negative pole ear is connected with a negative bus bar. One end of the bus bar is horizontally connected with a negative terminal, and both the positive and negative terminals are arranged at the upper end of the cluster group. 2. The flat-stacked four-terminal high-capacity battery according to claim 1, wherein five valve holes and four terminal holes matching the terminals are provided on the upper cover, and the five valve holes are respectively Set at the four corners and the center of the upper cover. 3. The flat-stacked four-terminal high-capacity battery according to claim 1, characterized in that: the horizontal section of the housing is square, and the midpoints of the four sides of the housing are in the shape of a "convex". 4. The flat-stacked four-terminal high-capacity battery according to claim 1, wherein the separator is made of glass fiber.