CN201112435Y

CN201112435Y - Durable electric vehicle battery

Info

Publication number: CN201112435Y
Application number: CNU2007201152793U
Authority: CN
Inventors: 汪训国
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-26
Filing date: 2007-09-26
Publication date: 2008-09-10
Anticipated expiration: 2017-09-26

Abstract

The utility model belongs to the battery manufacture technology field and relates to a durable battery for an electric motor car. The utility model includes a rectangular box body, of which the inside is equally divided into six single lattices by a plurality of ribs, a positive plate and a negative plate are mounted in each single lattice, a partition board is inserted between the positive plate and the negative plate, vitriol is injected into each single lattice, a rib is fixedly arranged between the two long sides of the box body and equally divides the long sides; while two ribs are fixedly arranged between the two short sides of the box body and equally divides the short sides into three parts. Without changing the external dimensions of the box body, the battery for the electric motor car keeps the height of the plates by changing the arrangement of each single lattice inside the box body and widening the plate surface in the single lattice, so that the relative height of the height and the width of the plate surface is lowered and the operating efficiency is improved; in addition, the thickness of each single lattice is reduced in the condition that the thickness of each plate remains the same, so that the number of the positive plates and the negative plates is reduced, the partition board made by superfine glass cellucotton is thickened to increase the acid absorption amount, and meanwhile, the vitriol transfer is distributed more uniformly, thereby prolonging the service life of the battery.

Description

A kind of durable battery of electric vehicle

[technical field]

The utility model belongs to battery manufacturing technology field, particularly a kind of durable battery of electric vehicle.

[background technology]

As everyone knows, electric motor car is a kind of vehicles of environmental protection.Along with the enhancing of various circles of society's environmental consciousness, electric motor car is little by little accepted by masses, and supported energetically by government department ground.

Along with the increase of electric motor car demand, the battery supporting with it also must be met the need of market as cardiac component.The useful life of electric motor car is generally more than 5 years, and the useful life of battery of electric vehicle all in 2 years, generally about a year and a half, exposed current battery and had technical deficiency, especially structural design is unreasonable.

The battery of electric vehicle industry standard, with 12V, 10AH battery is example, the structure of battery box and loam cake as shown in Figure 1, 2, 3, box body 1 is of a size of: long 151 ± 2mm, wide 98 ± 2mm, high 94 ± 2mm, and box body 1 is made up of 6 single lattice 3, is row along the box body minor face, be row along long limit, by rib 2 box body 1 inside is divided into 3,6 single lattice of 6 single lattice and is 2 row, 3 row shapes, each single lattice is the 2V monomer.The box body material is used ABS plastic always.Box body 1 is suitable for reading to be covered by lid 4, and lid 4 is established two binding posts 5 along a minor face.Adorn opposite polarity pole plate (drawing among the figure) in single lattice, insert the dividing plate of being made by the ultra-fine fibre glass cotton between the positive/negative plate, another effect of dividing plate is to inhale acid, thereby as the transport vehicle of sulfuric acid solution in the lead-acid battery.Because the use habit of electric motor car, battery moves under the electric motor car irregular movement, requires it that better vibratility is arranged, and overcharging resisting exoergic power preferably will be arranged, so battery request tightly assembles, could guarantee enough suction acid amounts.But there is following shortcoming in present battery of electric vehicle.At first, the shape of pole plate and single lattice shape are suitable, the shape that is rectangle, and during battery charging and discharging, the operation of electric current muscle frame outside lug portion past pole plate plate face edge is the comb shape transmission from top to bottom, because pole plate is not only narrow but also long, gravimetric specific energy is low, its operational efficiency is low; Secondly, under the electric motor car motion state, because pole plate plate face is oversize, sulfuric acid moves inhomogeneous on whole plate face, reduces useful life; At last, the charge frequency height of battery of electric vehicle, battery is normal gassing in charging process, and it is many more to discharge and recharge number of times, and battery dehydration situation is more serious, it is also unreasonable in assembling process to add battery, tight assemble internal polar plate is long more, after the dehydration distribution of sulfuric acid uneven more, like this, can cause the phenomenon of the local acid deficient of battery, shorten battery useful life.

[summary of the invention]

The utility model discloses a kind of durable battery of electric vehicle, it has solved present battery of electric vehicle and has had the technical problem that useful life is short, gravimetric specific energy is low.

For solving the problems of the technologies described above, technical solution adopted in the utility model: a kind of durable battery of electric vehicle, comprise box body, box body is cuboid, and box body inside is divided into six single lattice by the number rib, assembling positive/negative plate in single lattice, insert dividing plate between positive/negative plate, inject sulfuric acid in single lattice, a rib is fixedly arranged between box body two long limits, will grow the limit five equilibrium; Two ribs are fixedly arranged between box body two minor faces, with the minor face trisection.

Described battery of electric vehicle, the long 65-73MM of single lattice, wide 28-32MM.

Dress 4-5 sheet positive plate, 5-6 sheet negative plate in the described battery of electric vehicle, single lattice.

Battery of electric vehicle of the present utility model is under the situation that does not change box body overall dimension, by changing the layout and the battery polar terminal direction of inner each the single lattice of box body, single lattice internal polar plate plate face is widened, and the height of pole plate remains unchanged, like this, the relative altitude of pole plate plate face Gao Yukuan reduces, and operational efficiency improves; In addition, the less thick of single lattice, under the situation that electrode thickness remains unchanged, the sheet number of positive/negative plate reduces, and the dividing plate of being made by the ultra-fine fibre glass cotton thickens, and suction acid amount is increased, and simultaneously, the sulfuric acid transmission is more evenly distributed, the useful life of raising battery.

[description of drawings]

Fig. 1 is the structure vertical view of existing battery box.

Fig. 2 is the structure chart of existing battery lid.

Fig. 3 is the left view of existing battery.

Fig. 4 be the utility model battery box the structure vertical view.

Fig. 5 is the structure chart of the utility model battery lid.

Fig. 6 is the front view of the utility model battery.

Fig. 7 is the left view of the utility model battery.

[embodiment]

Below in conjunction with accompanying drawing the utility model is elaborated.

Shown in Fig. 4-7, box body 1 is cuboid, and its inside is divided into six single lattice 3 by 3 ribs 2, and rib 21 is fixedly arranged between 1 liang of long limit of box body, with two long limit five equilibriums;

Rib

22,23 is fixedly arranged between 1 liang of minor face of box body, with the minor face trisection, and the long 73MM of single lattice, wide 31MM.Tight assembling positive/negative plate (not drawing among the figure) in

single lattice

3,4 positive plates, 5 negative plates insert dividing plate between positive/negative plate, inject sulfuric acid in single lattice.Box body 1 is suitable for reading to be covered by lid 4, and lid 4 is established two binding posts 5 along a long limit, and lid also has 6 air vent holes 6, and air vent hole is corresponding with single lattice.

As shown in Figure 1, the plate width of existing battery is 44MM, and single lattice thickness is 47MM, and every single lattice are adorned 6 positive plate+7 negative plates or 7 positive plate+8 negative plates.As shown in Figure 4, the pole plate plate face of tight dress is widened 1.5 times in single lattice of this battery box, is 66mm, and the height of pole plate plate face remains unchanged, and the relative altitude of pole plate Gao Yukuan reduces; In addition, the less thick of single lattice 3 is 30mm, under the situation that electrode thickness remains unchanged, the sheet number of positive/negative plate reduces, and can adorn 4 positive plate+5 negative plates in every single lattice, like this, can thicken the cotton dividing plate of ultra-fine fibre glass, the suction acid amount of dividing plate increases, and the sulfuric acid transmission is more evenly distributed.

Through test, every single lattice are adorned the battery of 4 positive plates, 5 negative plates, and 5A can reach more than 150 minutes discharge time, and the pole plate specific energy significantly improves, and weight reduces by 0.4 kilogram at least, and the cycle life number of times of battery increases.Simultaneously, the polar plate number reduces, and production efficiency improves, and reduces production costs, and enhances product performance.

Claims

1, a kind of durable battery of electric vehicle, comprise box body, box body is cuboid, box body inside is divided into six single lattice by the number rib, the assembling positive/negative plate inserts dividing plate in single lattice between positive/negative plate, injects sulfuric acid in single lattice, it is characterized in that: a rib is fixedly arranged between box body two long limits, will grow the limit five equilibrium; Two ribs are fixedly arranged between box body two minor faces, with the minor face trisection.

2, battery of electric vehicle according to claim 1 is characterized in that: the long 65-73MM of single lattice, wide 28-32MM.

3, battery of electric vehicle according to claim 1 and 2 is characterized in that: dress 4-5 sheet positive plate, 5-6 sheet negative plate in single lattice.