CN207800662U - A kind of anti-deformation power battery head cover - Google Patents

Abstract

The utility model discloses a kind of anti-deformation power battery head covers; including head cover and falcon interface; the upper left-hand of head cover is provided with terminal negative; terminal negative insertion is arranged on head cover; the upper right of head cover is provided with terminal positive; terminal positive is fitted closely with head cover; it is provided on rear side of the top of head cover and overcharges protector; protector is overcharged to be fixedly connected with head cover; overcharge protector is internally provided with resistive conductor; resistive conductor insertion setting is overcharging in protector, and the top of head cover is provided with protective shell.This kind of anti-deformation power battery head cover; head cover outer wall is equipped with fixed frame; fixed frame is made of integrated molding converted steel frame; power battery using when easy to produce high-temperature gas, high-temperature gas may be such that its softening, fixed frame is fitted closely with head cover outer wall after contact head cover for a long time; and integrally formed fixed frame surface is smooth; without sharp bending, its outer wall is not damaged when head cover softens, and can also protect head cover.

Description

A kind of anti-deformation power battery head cover

Technical field

The utility model is related to power battery technology field, specially a kind of anti-deformation power battery head cover.

Background technology

Power battery, is called accumulator, and automobile batteries is chemically reacted by electrolyte inside chemical energy being converted to electricity Can, then power is provided to automobile or machinery, and can be in two years in the state of being completely dried with higher charge storage ability Preserve obtained electricity, electrolyte need to be only added in when use, just can be used after waiting in half an hour, and do not generate noise, no Exhaust gas is discharged, does not pollute the environment and destroys.

But existing power battery design is not reasonable, and power battery head cover is closely connect with battery case, in preventing The security performance of power battery substantially reduces while portion's electrolyte does not leak out, electrolyte inside chemical reaction generate gas without Method is discharged, and housing of power cell air pressure inside increases when electrolyte temperature increases, and will squeeze shell and head cover leads to its deformation Even burst.

So how to design a kind of anti-deformation power battery head cover, becoming us will currently solve the problems, such as.

Utility model content

The purpose of this utility model is to provide a kind of anti-deformation power battery head covers, to solve to carry in above-mentioned background technology Going out power battery cap can not balancing battery inside and outside air pressure the problem of causing head cover or battery case to deform or burst.

To achieve the above object, the utility model provides the following technical solutions：A kind of anti-deformation power battery head cover, including The upper left-hand of head cover and falcon interface, the head cover is provided with terminal negative, and the terminal negative insertion is arranged in head cover On, the upper right of the head cover is provided with terminal positive, and the terminal positive is fitted closely with head cover, the head cover It is provided on rear side of top and overcharges protector, the protector that overcharges is fixedly connected with head cover, and the inside for overcharging protector is set It is equipped with resistive conductor, the resistive conductor insertion setting is overcharging in protector, and the top of the head cover is provided with protective shell, the guarantor Protective case is fixedly connected with head cover, and the protective shell upper left-hand is provided with liquid injection port, and the liquid injection port insertion is arranged in protective shell On, the lower part of the liquid injection port is provided with electro-hydraulic pipeline, and the electro-hydraulic pipeline insertion is arranged in liquid injection port, the electro-hydraulic pipeline Top be provided with seal cap, the seal cap is embedding to be set on electro-hydraulic pipeline upper end, the upper right setting of the protective shell There are safety valve, the safety valve insertion to be arranged on protective shell, the safety valve is internally provided with rubber block, the rubber block It is fitted closely with safety valve, the top front end of the protective shell is provided with exhaust outlet, and the exhaust outlet insertion is arranged in protective shell On, the outside of the head cover is provided with fixed frame, and the fixed frame is embedding to be set on outside head cover, and the front of the fixed frame is set It is equipped with screw, the screw is flexibly connected with fixed frame, and the inner upper end of the falcon interface is provided with rupture pressure disc, the rupture pressure disc It is fitted closely with falcon interface, the lower part of the rupture pressure disc is provided with insulating course, and the insulating course is closely connect with rupture pressure disc.

Further, the rubber block is in " cake " shape, and outer wall is close to the inner wall of safety valve, and centre is split equipped with small intersection Mouthful.

Further, " circle " type cylinder that the exhaust outlet is made of the PVC of sandwich tape fine hole, one end be located at Inside protective shell, the other end is contacted with extraneous air.

Further, the fixed frame is made of integrated molding converted steel frame, if there are one interfaces.

Further, one end of the resistive conductor is electrically connected with terminal negative, and the other end stretches into inside battery.

Further, the insulating course is located at the penetralia of falcon interface.

Compared with prior art, the utility model has the beneficial effects that：This kind of anti-deformation power battery head cover, head cover outer wall Equipped with fixed frame, fixed frame is made of integrated molding converted steel frame, power battery using when easy to produce high-temperature gas, High Temperature Gas Body may be such that its softening, fixed frame is fitted closely with head cover outer wall after contacting head cover for a long time, and integrally formed fixed frame Surface is smooth, and without sharp bending, its outer wall is not damaged when head cover softens, can also protect head cover, ensures to generate rolling when its work The dynamic external engine body itself that collides with is injury-free, and safety valve is additionally provided on head cover, and safety valve is internally provided with rubber block, and centre is equipped with micro- Small intersection breach, breach acquiescence be in closed state, power battery work normally when air pressure inside it is small, rubber block opening due to Rubber extruded is in closed state, ensures that inside battery is not contaminated, after power battery air pressure inside increases to a certain extent, rubber Blob of viscose breach will be rushed to open, and power battery internal high temperature gas is discharged, head cover and battery case is protected not to be deformed very To bursting.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the internal structure schematic diagram of the utility model；

Fig. 3 is that the utility model overcharges protector partial structural diagram.

In figure：1, head cover, 2, liquid injection port, 3, safety valve, 4, falcon interface, 5, overcharge protector, 101, terminal positive, 102, protective shell, 103, terminal negative, 104, exhaust outlet, 105, fixed frame, 106, screw, 201, electro-hydraulic pipeline, 202, close Sealing cap, 301, rubber block, 401, rupture pressure disc, 402, insulating course, 501, resistive conductor.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of anti-deformation power battery head cover, including top The upper left-hand of lid 1 and falcon interface 4, head cover 1 is provided with terminal negative 103, and the insertion of terminal negative 103 is arranged in head cover 1 On, the upper right of head cover 1 is provided with terminal positive 101, and terminal positive 101 is fitted closely with head cover 1, head cover 1 it is upper It is provided on rear side of portion and overcharges protector 5, overcharged protector 5 and be fixedly connected with head cover 1, overcharge protector 5 is internally provided with electricity Line 501 is hindered, the insertion setting of resistive conductor 501 is overcharging in protector 5, and the top of head cover 1 is provided with protective shell 102, protective shell 102 It being fixedly connected with head cover 1,102 upper left-hand of protective shell is provided with liquid injection port 2, and the insertion of liquid injection port 2 is arranged on protective shell 102, The lower part of liquid injection port 2 is provided with electro-hydraulic pipeline 201, and the insertion of electro-hydraulic pipeline 201 is arranged in liquid injection port 2, electro-hydraulic pipeline 201 it is upper Portion is provided with seal cap 202, and seal cap 202 is embedding to be set on 201 upper end of electro-hydraulic pipeline, the upper right setting of protective shell 102 There are safety valve 3, the insertion of safety valve 3 to be arranged on protective shell 102, safety valve 3 is internally provided with rubber block 301, rubber block 301 It is fitted closely with safety valve 3, the top front end of protective shell 102 is provided with exhaust outlet 104, and the insertion setting of exhaust outlet 104 is being protected On shell 102, the outside of head cover 1 is provided with fixed frame 105, and fixed frame 105 is embedding to be set on outside head cover 1, and fixed frame 105 is stated Front is provided with screw 106, and the screw 106 is flexibly connected with fixed frame 105, and the inner upper end of falcon interface 4 is provided with explosion-proof Film 401, rupture pressure disc 401 are fitted closely with falcon interface 4, and the lower part of rupture pressure disc 401 is provided with insulating course 402, insulating course 402 with it is anti- Quick-fried film 401 closely connects.

Further, rubber block 301 is in " cake " shape, and outer wall is close to the inner wall of safety valve 3, and centre is split equipped with small intersection Mouthful, breach acquiescence is in closed state, and air pressure inside is small when power battery works normally, and the opening of rubber block 301 is squeezed due to rubber Pressure is in closed state, and after power battery air pressure inside increases to a certain extent, 301 breach of rubber block will be rushed to open, by power Inside battery high-temperature gas is discharged, and head cover 1 and battery case is protected not to be deformed or even burst.

Further, " circle " type cylinder that exhaust outlet 104 is made of the PVC of sandwich tape fine hole, one end be located at Inside protective shell 102, the other end is contacted with extraneous air, and internal gas can be by the miniature of exhaust outlet 301 when power battery works Hole is interacted with extraneous gas, and the air pressure due to inside battery is avoided to have big difference in influence with outside batteries air pressure Portion's electrolyte reaction, reduces battery capacity.

Further, fixed frame 105 is made of integrated molding converted steel frame, if there are one interface, when power battery uses High-temperature gas is easy tod produce, high-temperature gas may make its softening, fixed frame 105 and 1 outer wall of head cover after contacting head cover 1 for a long time It fits closely, and integrally formed fixed frame surface is smooth, is provided only with a falcon connection interface, it, will not be in head cover 1 without sharp bending Damage its outer wall when softening, can also protect head cover 1, make when its work because shaking collide with surrounding body when it is injury-free.

Further, one end of resistive conductor 501 is electrically connected with terminal negative 103, and the other end stretches into inside battery, is moved Electric energy is transmitted to resistive conductor 501 by positive and negative terminal when power battery charges to be imported again such as inside battery, works as inside battery Capacitance level off to saturation when, 501 internal resistance of resistive conductor persistently increases, and is finally stopped, no longer give inside battery power supply, protect Battery is demonstrate,proved not because electricity overfill generates deformation, or even burns battery.

Further, insulating course 402 is located at the penetralia of falcon interface 4, if outside air temperature is too low, electricity inside power battery Solution reaction will be greatly lowered, and influence battery work, be separated by insulating course 402 between inside battery and head cover 1, and insulating course 402 are located at the penetralia of falcon interface 4, even if outside air temperature is very low, 1 bulk temperature of head cover reduces, when low temperature is reached by head cover 1 It when inside battery, is separated by innermost layer insulating course 402, battery is protected not to be stopped because electrolyte inside is subcooled.

Operation principle：First, fixed frame 105 is nested mounted on 1 outside of head cover, screw 106 is tightened, liquid injection port 2 is opened Electrolyte is injected inside battery by the electro-hydraulic pipeline 201 of liquid injection port 2, connects the wiring on head cover 1 by the seal cap 202 on top Column anode 101 and terminal negative 103 give power battery charging, and external electric energy supplies battery via resistive conductor 501, when in battery When portion's capacitance saturation, 501 resistance of resistive conductor increases, last disconnecting circuit, then battery is installed to the body used, battery When work, inside battery body pressure is interacted by exhaust outlet 104 and outside batteries gas, equilibrium air pressure, when battery operation irregularity Or when discharge short, there are abnormal chemical reactions in inside battery electrolyte, generates a large amount of high temperature and high pressure gas, gas urges power Battery inner wall washes the opening of rubber block 301 in safety valve 3 open, and internal gas is discharged by safety valve 3, and fixed frame 105 is close to push up 1 outer wall of lid is fixed.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of anti-deformation power battery head cover, including head cover（1）With falcon interface（4）, it is characterised in that：The head cover（1）'s Upper left-hand is provided with terminal negative（103）, the terminal negative（103）It is embedded to be arranged in head cover（1）On, the head cover （1）Upper right be provided with terminal positive（101）, the terminal positive（101）With head cover（1）It fits closely, it is described Head cover（1）Top on rear side of be provided with and overcharge protector（5）, described to overcharge protector（5）With head cover（1）It is fixedly connected, it is described Overcharge protector（5）Be internally provided with resistive conductor（501）, the resistive conductor（501）Embedded setting is overcharging protector（5） It is interior, the head cover（1）Top be provided with protective shell（102）, the protective shell（102）With head cover（1）It is fixedly connected, the guarantor Protective case（102）Upper left-hand is provided with liquid injection port（2）, the liquid injection port（2）It is embedded to be arranged in protective shell（102）On, the note Liquid mouth（2）Lower part be provided with electro-hydraulic pipeline（201）, the electro-hydraulic pipeline（201）It is embedded to be arranged in liquid injection port（2）It is interior, it is described Electro-hydraulic pipeline（201）Top be provided with seal cap（202）, the seal cap（202）It is embedding to be set on electro-hydraulic pipeline（201）On End, the protective shell（102）Upper right be provided with safety valve（3）, the safety valve（3）It is embedded to be arranged in protective shell （102）On, the safety valve（3）Be internally provided with rubber block（301）, the rubber block（301）With safety valve（3）Close patch It closes, the protective shell（102）Top front end be provided with exhaust outlet（104）, the exhaust outlet（104）It is embedded to be arranged in protective shell （102）On, the head cover（1）Outside be provided with fixed frame（105）, the fixed frame（105）It is embedding to be set on head cover（1）Outside Portion, the fixed frame（105）Front be provided with screw（106）, the screw（106）With fixed frame（105）Flexible connection, institute State falcon interface（4）Inner upper end be provided with rupture pressure disc（401）, the rupture pressure disc（401）With falcon interface（4）It fits closely, institute State rupture pressure disc（401）Lower part be provided with insulating course（402）, the insulating course（402）With rupture pressure disc（401）Close connection.

2. a kind of anti-deformation power battery head cover according to claim 1, it is characterised in that：The rubber block（301）It is in " cake " shape, outer wall are close to safety valve（3）Inner wall, centre be equipped with small intersection breach.

3. a kind of anti-deformation power battery head cover according to claim 1, it is characterised in that：The exhaust outlet（104）It is " circle " the type cylinder being made of the PVC of sandwich tape fine hole, one end be located at protective shell（102）Inside, the other end and outside Air contacts.

4. a kind of anti-deformation power battery head cover according to claim 1, it is characterised in that：The fixed frame（105）By It is integrally formed converted steel frame to constitute, if there are one interfaces.

5. a kind of anti-deformation power battery head cover according to claim 1, it is characterised in that：The resistive conductor（501）'s One end and terminal negative（103）It is electrically connected, the other end stretches into inside battery.

6. a kind of anti-deformation power battery head cover according to claim 1, it is characterised in that：The insulating course（402）Position In falcon interface（4）Penetralia.