CN201402827Y

CN201402827Y - Storage battery cover

Info

Publication number: CN201402827Y
Application number: CN200920080364XU
Authority: CN
Inventors: 段小东
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-22
Filing date: 2009-04-22
Publication date: 2010-02-10
Anticipated expiration: 2019-04-22

Abstract

The utility model relates to a storage battery cover, which belongs to a component of storage batteries. The cover comprises a cover body and a sealing cover, wherein a plurality of liquid filling holes are formed on the cover body, liquid filling channels are respectively arranged at one end of each liquid filling hole, at least a liquid passing hole is respectively formed on the side walls of the liquid filling channels, exhaust holes are formed at the bottom parts of the liquid filling channels, and the internal diameter of the exhaust hole is smaller than that of the liquid filling channel. Electrolyte solution in the storage battery can not reflow due to overfilling of electrolyte solution or the inclination or shaking of the storage battery, thereby reducing the voltage of the storage battery while maintaining good ventilation effect in the storage battery.

Description

A kind of battery cap

Technical field

The utility model relates to a kind of parts of storage battery, particularly a kind of battery cap.

Background technology

All be provided with a strip groove on the lid of existing storage battery lid, be provided with a plurality of liquid filling holes in groove, liquid filling hole is blocked with sealing plug.On the grid of lid inner surface, also have a plurality of steam vents, a plurality of steam vents are used for the storage battery emission gases, this set method of steam vent is in the storage battery use, when electrolyte adds when too much, because the inclination or the shake of storage battery, electrolyte in interior each the grid container of storage battery is flowed mutually and connection formation series connection, reduce the voltage of storage battery, influence the power supply capacity of storage battery, the patent No. is: ZL200820062777.0 discloses a kind of battery cap, being provided with the exhaust passage in seal cover communicates with the external world, though even storage battery can cause the backflow of electrolyte equally in use owing to tilt or shake can not cause between the grid to be interconnected.

Summary of the invention

The purpose of this utility model is that the structure of the steam vent on the battery cover of above-mentioned existing storage battery, position are improved, and a kind of battery cap that can not cause the electrolyte in the battery grid container to reflux is provided.

Structure of the present utility model is: a kind of battery cap, comprise lid 1 and seal cover 3, lid 1 is provided with a plurality of liquid filling holes 2, the end that liquid filling hole 2 is positioned at the grid container is provided with liquid feeding passage 7, the sidewall of liquid feeding passage 7 has at least one liquid-through hole 8, liquid feeding passage 7 bottoms are provided with steam vent 9, the internal diameter of steam vent 9 is less than liquid feeding passage 7, seal cover 3 is provided with and a plurality of liquid filling hole 2 corresponding sealing plugs that interlock 4, be provided with the exhaust passage 5 of loosing core in the seal cover 3, the exhaust passage 5 of loosing core communicates with the external world, and hollows are exhaust passage 6 in the sealing plug 4, and the exhaust passage 6 on the sealing plug 4 communicates with the exhaust passages 5 of loosing core of settings in the seal cover 3.

When using this utility model accumulators filling electrolyte, take off seal cover 3, electrolyte is injected by liquid filling hole 2 and liquid feeding passage 7, electrolyte passes through in the liquid-through hole 8 injecting accumulator grids of opening on the sidewall of liquid feeding passage 7 again.Behind the electrolyte of having annotated, seal cover 3 is covered, the interlocking of sealing plug 4 correspondences on the seal cover 3 with liquid filling hole 2, sealing plug 4 is just blocked liquid-through hole 8, and the electrolyte that adds like this in the storage battery just can not form backflow.And liquid feeding passage 7 bottoms are provided with steam vent 9, and the internal diameter of steam vent 9 is less than liquid feeding passage 7, and the internal diameter of steam vent 9 is approximately 1-2mm.Because the internal diameter of steam vent 9 is quite little, it can only be beneficial to gas flow, the backflow of electrolyte almost is impossible, and the battery cap of this structure just can solve the backflow that had both prevented electrolyte, and the gas of internal storage battery and the external world are exchanged.The two ends sidewall of seal cover 3 has electrode hole 10, prevents power supply short circuit, also helps preventing electrode corrosion.

The inner surface of the utility model battery cap is convenient to processing work, directly is processed into the plane and gets final product, and helps heat cover.During filling electrolyte, electrolyte injects in the liquid feeding passage of lid, and injects by liquid-through hole, cover the seal cover sealing plug and block liquid-through hole, prevent that electrolyte from refluxing, its gas overflows by the sealing plug upper air-vent, is provided with in seal cover in the air-out of exhaust passage then.The advantage of the battery cap of this design can not add too much because of the inclination or the shake of storage battery because of the electrolyte of storage battery, and the electrolyte in the storage battery is refluxed, and reduces the voltage of storage battery, can keep the good ventilatory effect in the storage battery simultaneously yet.

Description of drawings

Fig. 1 is the structural representation of storage battery lid;

Fig. 2 is the outside drawing of storage battery seal cover;

Fig. 3 is that Figure 1A-A is to the lid cutaway view;

Fig. 4 is that seal cover B-B is to cutaway view;

Fig. 5 is the cutaway view that seal cover covers lid;

Fig. 6 is the left view of seal cover.

1 is lid, the 2nd among the figure, liquid filling hole, the 3rd, seal cover, the 4th, sealing plug, the 5th, the exhaust passage of loosing core, the 6th, exhaust passage, the 7th, liquid feeding passage, the 8th, liquid-through hole, the 9th, steam vent, 10 electrode holes.

Embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of battery cap, comprise lid 1 and seal cover 3, lid 1 is provided with a plurality of liquid filling holes 2, the end that liquid filling hole 2 is positioned at the grid container is provided with liquid feeding passage 7, the sidewall of liquid feeding passage 7 has a liquid-through hole 8, liquid feeding passage 7 bottoms are provided with steam vent 9, the internal diameter of steam vent 9 is less than liquid feeding passage 7, the internal diameter of steam vent 9 is 1mm, seal cover 3 is provided with and a plurality of liquid filling hole 2 corresponding sealing plugs that interlock 4, be provided with the exhaust passage 5 of loosing core in the seal cover 3, the exhaust passage 5 of loosing core communicates with the external world, and hollows are exhaust passage 6 in the sealing plug 4, and the exhaust passage 6 on the sealing plug 4 communicates with the exhaust passages 5 of loosing core of settings in the seal cover 3.Liquid feeding passage 7 liquid-through holes that sidewall is opened 8 are vertical with exhaust passage 5 directions of loosing core.

As shown in Figure 5, when using this utility model accumulators filling electrolyte, take off seal cover 3, electrolyte is injected by liquid filling hole 2 and liquid feeding passage 7, electrolyte passes through in the liquid-through hole 8 injecting accumulator grids of opening on the sidewall of liquid feeding passage 7 again.Behind the electrolyte of having annotated, seal cover 3 is covered, the interlocking of sealing plug 4 correspondences on the seal cover 3 with liquid filling hole 2, sealing plug 4 is just blocked liquid-through hole 8, and the electrolyte that adds like this in the storage battery just can not form backflow.And liquid feeding passage 7 bottoms are provided with steam vent 9, and the internal diameter of steam vent 9 is less than liquid feeding passage 7, and the internal diameter of steam vent 9 is approximately 1-2mm.Because the internal diameter of steam vent 9 is quite little, it can only be beneficial to gas flow, the backflow of electrolyte almost is impossible, and the battery cap of this structure just can solve the backflow that had both prevented electrolyte, and the gas of internal storage battery and the external world are exchanged.

As shown in Figure 6, be provided with electrode hole 10, prevent power supply short circuit, also help preventing electrode corrosion in the both sides of seal cover 3.

Above-mentioned liquid-through hole 8 can be made two or more.

Claims

1, a kind of battery cap, comprise lid (1) and seal cover (3), lid (1) is provided with a plurality of liquid filling holes (2), seal cover (3) is provided with and the corresponding sealing plugs that interlock of a plurality of liquid filling holes (2) (4), be provided with the exhaust passage of loosing core (5) in the seal cover (3), the exhaust passage (5) of loosing core communicates with the external world, the interior hollow of sealing plug (4) is exhaust passage (6), exhaust passage (6) on the sealing plug (4) communicates with the exhaust passage of loosing core (5) of setting in the seal cover (3), it is characterized in that: a plurality of liquid filling holes (2) on the lid (1) are provided with liquid feeding passage (7), the sidewall of liquid feeding passage (7) has at least one liquid-through hole (8), liquid feeding passage (7) bottom is provided with steam vent (9), and the internal diameter of steam vent (9) is less than the internal diameter of liquid feeding passage (7).

2, battery cap according to claim 1 is characterized in that: the internal diameter of described steam vent (9) is 1mm-2mm.

3, battery cap according to claim 1 and 2 is characterized in that: the sidewall of seal cover (3) has electrode hole (10).