CN201122610Y

CN201122610Y - Long flow passage anti-leakage lead acid accumulator cover

Info

Publication number: CN201122610Y
Application number: CNU2007201380408U
Authority: CN
Inventors: 刘世忠
Original assignee: Fengfan Co Ltd
Current assignee: Fengfan Co Ltd
Priority date: 2007-11-23
Filing date: 2007-11-23
Publication date: 2008-09-24
Anticipated expiration: 2017-11-23

Abstract

The utility model relates to a long flow channel antileak lead acid battery cover, which belongs to the storage battery technology field, and is used for solving the problem of acid liquor leakage when the storage battery is in a large angle inclination state. The lead acid battery cover is composed of a big cover and a gas exhausting cover. The butting surfaces of the big cover and the gas exhausting cover are heat sealed, the big cover and the gas exhausting cover are corresponding to the battery stack of the storage battery to form cells, a back flow exhaust hole and a labyrinth flow channel are arranged in each cell, after being improved, a central flow channel and an edge flow channel are arranged at the corresponding positions between the big cover and the gas exhausting cover, the labyrinth flow channel, the central flow channel and the edge flow channel are connected in sequence, the head end of the labyrinth flow channel is communicated with the back flow exhaust hole, and the tail end of the edge flow channel is communicated with an gas filtering sheet component. The central flow channel, the edge flow channel and the labyrinth flow channel which are additionally arranged form the lengthened flow channel, the design greatly increases the traveling time of gaseous phase and aqueous phase in the flow channel, thus effectively prevents the overflow of the acid liquor of the battery, and is favorable for the thorough separation of the acid liquor and the aqueous vapor in the flow channel. Through the improvement, the acid liquor leakage proof capacity when the storage battery is inclined at large angles and in various directions can be obviously promoted.

Description

A kind of long runner anti-leak lead-acid battery lid

Technical field

The utility model relates to a kind of vehicle battery parts, has the lead-acid battery lid of strong anti-leak function especially, belongs to the battery technology field.

Background technology

Lead acid accumulator generally is made up of a plurality of single lattice batteries, in each single lattice battery sulfuric acid electrolyte is housed, require mutual ventilation between each single lattice battery of storage battery in the use but the liquid of can not going here and there, liquid can not be excessive, must satisfy above-mentioned requirements when the storage battery integral inclination.For this reason, battery cap will be provided with structures such as labyrinth, the sour plate of retaining to reduce the loss of electrolyte around return port.Usually when storage battery and normal mounting inclined position are no more than a certain angle, can guarantee not have electrolyte in the short time and overflow by filtering in the pore.But the subject matter that existing product exists is: at some in particular cases, 90 ° of wide-angle tilts might take place in storage battery in different directions, the storage battery of ordinary construction electrolyte under this state flows out in can be by battery, cause electrolyte loss, and the corrosion vehicle part, driving is produced potential safety hazard; After the battery forward was placed, it was uneven the electrolyte backflow also can to occur, causes indivedual single lattice to lack liquid, thereby obviously shortens battery life simultaneously.

Summary of the invention

The utility model is used to overcome the defective of prior art and provides a kind of storage battery to be under the wide-angle tilt state and can effectively prevent the long runner anti-leak lead-acid battery lid that acid solution leaks.

The alleged problem of the utility model solves with following technical proposals:

A kind of long runner anti-leak lead-acid battery lid, form by big lid and exhaust cap, the two interface heat-sealing, big lid, the corresponding cell jar body unit of exhaust cap form single lattice, be provided with backflow vent hole and labyrinth flow-path in each single lattice, its special feature is: mutual corresponding position, position is provided with center flow channels 5 and edge runner 6 between big lid and exhaust cap, described labyrinth flow-path 4, center flow channels 5, edge runner 6 connect successively, the labyrinth flow-path head end is communicated with backflow vent hole 3, and the edge flow field end is communicated with air filter piece assembly 7.

Above-mentioned long runner anti-leak lead-acid battery lid, described center flow channels 5 are positioned at exhaust cap 1 and cover 8 middle parts greatly, and the exhaust cap that is distributed in of edge runner 6 symmetries is covered center flow channels both sides, close exhaust cap and built the long side wall greatly with big.

The utility model improves the structure of lead-acid battery lid at the existing lead acid accumulator problem that acid solution leaks when wide-angle tilt takes place, set up center flow channels and edge runner, center flow channels of setting up and edge runner and labyrinth flow-path constitute the lengthening runner jointly, this design has increased gas, liquid traveling time in runner greatly, prevent that effectively battery acid liquid from overflowing, and help acid solution and in runner, thoroughly separate with steam.In addition, described lengthening runner extends to the edge on exhaust cap and two long limits of big lid, can obviously strengthen the anti-acid solution leakage ability of storage battery when all directions wide-angle (90 °) tilts, and storage battery safety in utilization and durability are greatly improved.

Description of drawings

Fig. 1 is the front view (with big lid interface) of the utility model exhaust cap;

Fig. 2 is the front view (after removing exhaust cap) of the big lid of the utility model;

Fig. 3 is the gas schematic diagram of advancing.

Each parts label is expressed as follows among the figure: 1. exhaust cap; 2. single lattice; 3. backflow vent hole; 4. labyrinth flow-path; 5. center flow channels; 6. edge runner; 7. air filter piece assembly; 8. big lid.

Embodiment

Referring to Fig. 1, Fig. 2, the utility model is made up of big lid 8 and exhaust cap 1, the two interface heat-sealing, and big lid, the corresponding cell jar body unit of exhaust cap form single lattice 2, are provided with backflow vent hole 3 and labyrinth flow-path 4 in each single lattice.For prolonging gas, liquid time of staying in runner, mutual corresponding position, position is provided with center flow channels 5 and edge runner 6 between big lid and exhaust cap, described labyrinth flow-path 4, center flow channels 5, edge runner 6 connect successively, common formation lengthening runner, the labyrinth flow-path head end is communicated with backflow vent hole 3, and the edge flow field end is communicated with air filter piece assembly 7.As seen from the figure, center flow channels 5 is positioned at exhaust cap 1 and big lid 8 middle parts, its head end and the terminal two long limit edges that are in exhaust cap and big lid respectively, edge runner 6 symmetries be distributed in exhaust cap and big lid center flow channels both sides, near exhaust cap with build the long side wall greatly.

Referring to Fig. 3, the gas traveling process following (streamline that has arrow among the figure is represented the gas travel line) that produces in the storage battery: gas is flowed out by backflow vent hole 3, enter close terminal 9 one sides of center flow channels 5 through labyrinth flow-path 4, flowing out by center flow channels again away from terminals side, divide right and left and enter edge runner 6 respectively, discharge storage battery through air filter piece assembly 7 by edge runner 6 ends.The lengthening runner has increased the time that gas stops in battery, that acid can be separated with steam is more thorough, and in addition, the lengthening runner extends to exhaust cap and the long limit of big two of covering edge, can prevent effectively that battery acid liquid from overflowing, storage battery safety in utilization and durability are greatly improved.

Claims

1. one kind long runner anti-leak lead-acid battery lid, form by big lid and exhaust cap, the two interface heat-sealing, big lid, the corresponding cell jar body unit of exhaust cap form single lattice, be provided with backflow vent hole and labyrinth flow-path in each single lattice, it is characterized in that: mutual corresponding position, position is provided with center flow channels (5) and edge runner (6) between big lid and exhaust cap, described labyrinth flow-path (4), center flow channels (5), edge runner (6) connect successively, the labyrinth flow-path head end is communicated with backflow vent hole (3), and the edge flow field end is communicated with air filter piece assembly (7).

2. long runner anti-leak lead-acid battery lid according to claim 1, it is characterized in that: described center flow channels (5) is positioned in the middle part of exhaust cap (1) He Dagai (8), and the exhaust cap that is distributed in of edge runner (6) symmetry is covered center flow channels both sides, close exhaust cap and built the long side wall greatly with big.