CN103474591A - Power lithium battery cover plate assembly and lithium battery with the power lithium battery cover plate assembly - Google Patents
Power lithium battery cover plate assembly and lithium battery with the power lithium battery cover plate assembly Download PDFInfo
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- CN103474591A CN103474591A CN2013104455069A CN201310445506A CN103474591A CN 103474591 A CN103474591 A CN 103474591A CN 2013104455069 A CN2013104455069 A CN 2013104455069A CN 201310445506 A CN201310445506 A CN 201310445506A CN 103474591 A CN103474591 A CN 103474591A
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- cover plate
- connecting portion
- valve body
- lithium battery
- negative pole
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a power lithium battery cover plate assembly. The power lithium battery cover plate assembly comprises a cover plate, an anode column and a cathode column, and the anode column and the cathode column are arranged on the cover plate. A safety valve is arranged between the anode column and the cathode column. The safety valve is removably installed on the cover plate. The safety valve comprises a valve body. A joint between the valve body and the cover plate is provided with a safety valve gasket. An air inlet passage and an accommodation passage go through the interior of the valve body along a valve body axis. An insulating seal plate for sealing the air inlet passage is arranged in the accommodation passage and is located at the air inlet passage. Through an elastic member, the insulating seal plate can be movably pressed on the joint between the air inlet passage and the accommodation passage along an accommodation passage axis. The valve body is provided with exhaust vents communicated with the accommodation passage. Through the safety valve removably installed on the cover plate and through the air inlet passage and the accommodation passage going through the interior of the valve body, the sizes of the exhaust vents of the safety valve are increased, a lithium battery pressure release rate is higher and electrical core baking efficiency in production is improved.
Description
Technical field
The present invention relates to the battery technology field, the lithium battery that relates in particular to a kind of power lithium battery cover plate assembly and comprise this cover plate assembly.
Background technology
Lithium battery (Lithium battery) refers in electrochemical system and contains the lithium battery of (comprising lithium metal, lithium alloy and lithium ion, lighium polymer).Lithium battery use and transportation in short circuit occurs, overcharge, cross while the situation such as putting, may cause electric current out of control, thereby make the battery temperature rising.When temperature is elevated to certain altitude, the material of inside battery is as meeting divisions such as electrolyte.Therefore, no matter be the lithium battery of plastic housing, aluminum hull, stainless steel casing, its oral area all is equipped with safety valve, with for avoiding the generation of the problems referred to above.
Existing lithium battery is mostly used explosion-proof membranous type safety valve to have following defect:
1, the thickness due to rupture pressure disc is less, is easy to corrosion failure and causes seal failure under rugged environment;
2, be generally used for the welding rupture pressure disc relief hole less, the gas produced when the inside battery vigorous reaction can't be discharged in time;
Need to be welded to rupture pressure disc on cover plate in advance while 3, using such safety valve, when battery core is toasted, only have the liquid injection hole of a diameter 1.5mm left and right to be in communication with the outside, cause battery core baking efficiency low, waste activity time and energy resource consumption.
In addition, for power lithium battery, except explosion-proof, most critical is exactly that internal resistance is low, and so that larger power output to be provided, existing motive-power battery pole is used riveted joint or welding manner, easily causes loose contact, affects the internal resistance of cell.
Summary of the invention
The object of the invention is to propose a kind of power lithium battery cover plate assembly, its good sealing effect, pressure release speed is fast, and the gas produced in the time of can be by the lithium battery interior vigorous reaction is discharged in time, prevents the lithium battery blast.
Another object of the present invention is to propose a kind of power lithium battery cover plate assembly, and it can promote the battery core baking efficiency of lithium battery, saves activity time, reduces energy resource consumption.
Another object of the present invention is to propose a kind of power lithium battery cover plate assembly, and it can reduce the connection impedance of battery, improves the power output of battery.
A further object of the present invention is to propose a kind of lithium battery, and it is explosion-proof that it utilizes the safety valve arranged on battery cover board effectively to realize, guarantees the fail safe of using, in use sealing effectiveness might as well, battery core baking efficiency is high, and activity time is few, and energy resource consumption is few.
For reaching this purpose, the present invention by the following technical solutions:
A kind of power lithium battery cover plate assembly, comprise cover plate 1, Positive Poles 2 and negative pole pole 3 are set on described cover plate 1, between described Positive Poles 2 and negative pole pole 3, safety valve 8 is set, described safety valve 8 detachably is arranged on described cover plate 1, described safety valve 8 comprises the valve body be connected with described cover plate 1, the junction of described valve body and described cover plate 1 arranges the safety valve seal gasket 9 of insulation, arrange in described valve body along described valve axis and connect the inlet channel 85 arranged and hold passage 84, the described diameter that holds passage 84 is greater than the diameter of described inlet channel 85, describedly hold in passage 84 and be positioned at the shrouding 89 that described inlet channel 85 places are provided for sealing the insulation of described inlet channel 85, described shrouding 89 can move along the described axis that holds passage 84 by elastic component is pressed together on described inlet channel 85 and the described junction that holds passage 84, steam vent 88 is set on described valve body, described steam vent 88 is communicated with the described passage 84 that holds.
Inlet channel 85 by perforation is set in the valve body at safety valve 8 and hold passage 84, and on valve body, arrange and the steam vent 88 that holds passage 84 and be communicated with, when reality is used, the inlet channel 85 connected and the size of holding passage 84 can be designed as the diameter that is slightly less than safety valve 8 valve bodies, make safety valve 8 there is larger relief hole, when inside battery occurs can discharging fast inside battery gas when abnormal, improve battery safety.
Safety valve seal gasket 9 elasticity are pressed together on inlet channel 85, and safety valve seal gasket 9 and valve body are closely linked, and when interior voltage rise is high, can discharge internal gas, when air pressure inside reduces, can return to original state again.
Safety valve seal gasket 9 is not installed during battery core in baking, and larger relief hole can guarantee that the gas of battery core inside or trace steam can free flows, improves baking efficiency, has saved activity time and energy resource consumption.
Further, described Positive Poles 2 is symmetrical arranged with the axis of described negative pole pole 3 along safety valve 8.
Further, an end of described inlet channel 85 is communicated with inside battery, and the other end of described inlet channel 85 is communicated with the described passage 84 that holds.
A kind of preferred version as the power lithium battery cover plate assembly, the described passage 84 that holds detachably is provided for sealing the described capping 86 of holding passage 84 away from an end of described inlet channel 85, describedly hold that passage 84 is interior arranges described elastic component, described elastic component is Compress Spring 87, one end of described Compress Spring 87 is connected with described capping 86, and the other end of described Compress Spring 87 is connected with described shrouding 89.
Capping 86 can be enclosed in Compress Spring 87 to hold in passage 84, and restriction shrouding 89 only can hold the interior movement of passage 84.Compress Spring 87 and shrouding 89 can disassemble in safety valve 8, and the detachable setting of capping 86 has facilitated the dismounting of Compress Spring 87 and shrouding 89.
A kind of preferred version as the power lithium battery cover plate assembly, described valve body comprises valve body first end 81 and valve body the second end 82, described capping 86 screw threads are screwed in described valve body first end 81, and described valve body the second end 82 passes described cover plate 1 and is threaded with safety valve clamp nut 10.
Safety valve 8 is fixed on cover plate 1 by safety valve clamp nut 10 is dismountable, makes the dismounting of safety valve 8 convenient.
A kind of preferred version as the power lithium battery cover plate assembly, between described valve body first end 81 and described valve body the second end 82, valve body baffle plate 83 is set, the external diameter of described valve body baffle plate 83 is greater than the external diameter of described valve body first end 81, and the external diameter of described valve body first end 81 is greater than the external diameter of described valve body the second end 82.
The setting of valve body baffle plate 83 is in order to limit the installation site of safety valve 8.
A kind of preferred version as the power lithium battery cover plate assembly, described safety valve seal gasket 9 comprises the first connecting portion 91 and the second connecting portion 92 be parallel to each other, between described the first connecting portion 91 and the second connecting portion 92, the 3rd connecting portion 93 is set, the two ends of described the 3rd connecting portion 93 are separately positioned on the first connecting portion 91 and the second connecting portion 92 center, and described the first connecting portion 91, the 3rd connecting portion 93 and the second connecting portion 92 center are connection setting and are formed for the first through hole 94 that described valve body the second end 82 passes.
A kind of preferred version as the power lithium battery cover plate assembly, described the 3rd connecting portion 93 is complementary with the 3rd installing hole 13 on described cover plate, so that described the 3rd connecting portion 93 can pass described the 3rd installing hole 13, the external diameter of described the first connecting portion 91 and the second connecting portion 92 all is greater than the diameter of described the 3rd installing hole 13, so that described the first connecting portion 91 and the second connecting portion 92 are fitted in respectively the both sides of described cover plate 1.
Further, the length of described the 3rd connecting portion 93 equals the thickness of described cover plate 1.
9 pairs of safety valves 8 of safety valve seal gasket by adopting this structure and the junction of cover plate 1 are sealed, and make the sealing effectiveness between safety valve 8 and cover plate 1 better.
As a kind of preferred version of power lithium battery cover plate assembly, the uniform a plurality of described steam vents 88 of annular on described valve body.
As a kind of preferred version of power lithium battery cover plate assembly, described Positive Poles 2 detachably is arranged on described cover plate 1, and the junction of described Positive Poles 2 and described cover plate 1 arranges the anodal seal gasket 6 of insulation;
Described negative pole pole 3 detachably is arranged on described cover plate 1, and the junction of described negative pole pole 3 and described cover plate 1 arranges the negative pole seal gasket 7 of insulation.
A kind of preferred version as the power lithium battery cover plate assembly, described Positive Poles 2 comprises Positive Poles first end 21 and Positive Poles the second end 23, between described Positive Poles first end 21 and Positive Poles the second end 23, Positive Poles baffle plate 22 is set, the external diameter of described Positive Poles baffle plate 22 is greater than the external diameter of described Positive Poles first end 21, described Positive Poles the second end 23 is arranged on the side of described cover plate 1 near inside battery, and described Positive Poles first end 21 is threaded with anodal clamp nut 4 through described cover plate 1;
Described negative pole pole 3 comprises negative pole pole first end and negative pole pole the second end, between described negative pole pole first end and negative pole pole the second end, negative pole pole baffle plate is set, the external diameter of described negative pole pole baffle plate is greater than the external diameter of described negative pole pole first end, described negative pole pole the second end is arranged on the side of described cover plate near inside battery, and described negative pole pole first end is threaded with the negative pole clamp nut through described cover plate.
Further, four anodal connecting holes 24 that are connected with the lug of battery core in battery are set on described Positive Poles first end 21;
Four negative pole connecting holes that are connected with the lug of battery core in battery are set on described negative pole pole first end.
Anodal connecting hole 24 and arranging of negative pole connecting hole can be reduced the battery direct impedance, improve the battery power output.
Further, described anodal seal gasket 6 comprises the 4th connecting portion and the 5th connecting portion be parallel to each other, between described the 4th connecting portion and the 5th connecting portion, the 6th connecting portion is set, the two ends of described the 6th connecting portion are separately positioned on the center of the 4th connecting portion and the 5th connecting portion, described the 4th connecting portion, the center of the 6th connecting portion and the 5th connecting portion is connection setting and is formed for the second through hole that described Positive Poles first end 21 passes, the first installing hole 11 on described the 6th connecting portion and described cover plate is complementary, so that described the 6th connecting portion can pass described the first installing hole 11, the external diameter of described the 4th connecting portion and the 5th connecting portion all is greater than the diameter of described the first installing hole 11, so that described the 4th connecting portion and the 5th connecting portion are fitted in respectively the both sides of described cover plate 1.
Further, the length of described the 6th connecting portion equals the thickness of described cover plate 1.
Further, described negative pole seal gasket 7 comprises the 7th connecting portion and the 8th connecting portion be parallel to each other, between described the 7th connecting portion and the 8th connecting portion, the 9th connecting portion is set, the two ends of described the 9th connecting portion are separately positioned on the center of the 7th connecting portion and the 8th connecting portion, described the 7th connecting portion, the center of the 9th connecting portion and the 8th connecting portion is connection setting and is formed for the second through hole that described negative pole pole first end passes, the second installing hole 12 on described the 9th connecting portion and described cover plate is complementary, so that described the 9th connecting portion can pass described the second installing hole 12, the external diameter of described the 7th connecting portion and the 8th connecting portion all is greater than the diameter of described the second installing hole 12, so that described the 7th connecting portion and the 8th connecting portion are fitted in respectively the both sides of described cover plate 1.
Further, the length of described the 9th connecting portion equals the thickness of described cover plate 1.
A kind of lithium battery, comprise power lithium battery cover plate assembly as mentioned above.
The contrast prior art, beneficial effect of the present invention is: by safety valve on the cover board detachably is set, be provided with in safety valve and connect the inlet channel arranged and hold passage, can make the size of the relief hole of safety valve increase, for lithium battery provides larger pressure release speed, guarantee the fail safe of lithium battery, can also improve the efficiency of battery core baking in production simultaneously, save time and the energy.
The accompanying drawing explanation
The structural representation that Fig. 1 is the described power lithium battery cover plate assembly of the embodiment of the present invention;
The schematic perspective view that Fig. 2 is Fig. 1;
The structural representation that Fig. 3 is Fig. 1 cover plate;
The structural representation that Fig. 4 is safety valve in Fig. 1;
The structural representation that Fig. 5 is Positive Poles in Fig. 1;
The A that Fig. 6 is Fig. 5 is to schematic diagram;
The B that Fig. 7 is Fig. 5 is to schematic diagram;
The structural representation that Fig. 8 is anodal seal gasket in Fig. 1;
The schematic top plan view that Fig. 9 is Fig. 8.
In Fig. 1 to 8:
1, cover plate; 11, the first installing hole; 12, the second installing hole; 13, the 3rd installing hole;
2, Positive Poles; 21, Positive Poles first end; 22, Positive Poles baffle plate; 23, Positive Poles the second end; 24, anodal connecting hole;
3, negative pole pole.4, anodal clamp nut; 5, negative pole clamp nut;
6, anodal seal gasket; 7, negative pole seal gasket;
8, safety valve; 81, valve body first end; 82, valve body the second end; 83, valve body baffle plate; 84, hold passage; 85, inlet channel; 86, capping; 87, Compress Spring; 88, steam vent; 89, shrouding;
9, safety valve seal gasket; 91, the first connecting portion; 92, the second connecting portion; 93, the 3rd connecting portion; 94, the first through hole; 10, safety valve clamp nut.
Embodiment
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing and by embodiment.
As shown in Figures 1 to 3 in embodiment, new type power type lithium battery cap board component of the present invention, comprise cover plate 1, be provided with the first installing hole 11 that connects cover plate 1 on cover plate 1, the second installing hole 12 and the 3rd installing hole 13, in the interior detachable installation Positive Poles 2 of the first installing hole 11, at the interior detachable installation negative pole pole 3 of the second installing hole 12, at the interior detachable mounting safety valve 8 of the 3rd installing hole 13, safety valve 8 is between Positive Poles 2 and negative pole pole 3, Positive Poles 2 is provided for the junction of cover plate 1 the anodal seal gasket 6 sealed, negative pole pole 3 is provided for the junction of cover plate 1 the negative pole seal gasket 7 sealed, safety valve 8 is provided for the junction of cover plate 1 the safety valve seal gasket 9 sealed.
As shown in Figure 4, safety valve 8 comprises the valve body be connected with cover plate 1, arrange in valve body along valve axis and connect the inlet channel 85 arranged and hold passage 84, the diameter that holds passage 84 is greater than the diameter of inlet channel 85, hold in passage 84 and be positioned at the shrouding 89 that inlet channel 85 places are provided for sealing the insulation of inlet channel 85, hold passage 84 and detachably be provided for away from an end of inlet channel 85 capping 86 that passage 84 is held in sealing, hold the interior Compress Spring 87 that arranges of passage 84, one end of Compress Spring 87 is connected with capping 86, the other end of Compress Spring 87 is connected with shrouding 89, so that shrouding 89 elasticity are pressed together on inlet channel 85, steam vent 88 is set on valve body, steam vent 88 with hold passage 84 and be communicated with, in the present embodiment, the uniform a plurality of steam vents 88 of annular on valve body, one end of inlet channel 85 is communicated with inside battery, the other end of inlet channel 85 with hold passage 84 and be communicated with.
Valve body comprises valve body first end 81 and valve body the second end 82, and capping 86 screw threads are screwed in valve body first end 81, and valve body the second end 82 passes cover plate 1 and is threaded with safety valve clamp nut 10.
Between valve body first end 81 and valve body the second end 82, valve body baffle plate 83 is set, the external diameter of valve body baffle plate 83 is greater than the external diameter of valve body first end 81, and the external diameter of valve body first end 81 is greater than the external diameter of valve body the second end 82.
As shown in FIG. 8 and 9, safety valve seal gasket 9 comprises the first connecting portion 91 and the second connecting portion 92 be parallel to each other, between the first connecting portion 91 and the second connecting portion 92, the 3rd connecting portion 93 is set, the two ends of the 3rd connecting portion 93 are separately positioned on the first connecting portion 91 and the second connecting portion 92 center, and the first connecting portion 91, the 3rd connecting portion 93 and the second connecting portion 92 center are connection setting and are formed for the first through hole 94 that valve body the second end 82 passes.
The 3rd connecting portion 93 is complementary with the 3rd installing hole 13 on cover plate, so that the 3rd connecting portion 93 can pass the 3rd installing hole 13, the external diameter of the first connecting portion 91 and the second connecting portion 92 all is greater than the diameter of the 3rd installing hole 13, so that the first connecting portion 91 and the second connecting portion 92 are fitted in respectively the both sides of cover plate 1, the length of the 3rd connecting portion 93 equals the thickness of cover plate 1.
As shown in Figs. 5 to 7, Positive Poles 2 comprises Positive Poles first end 21 and Positive Poles the second end 23, between Positive Poles first end 21 and Positive Poles the second end 23, Positive Poles baffle plate 22 is set, the external diameter of Positive Poles baffle plate 22 is greater than the external diameter of Positive Poles first end 21, Positive Poles the second end 23 is arranged on the side of cover plate 1 near inside battery, Positive Poles first end 21 is threaded with anodal clamp nut 4 through cover plate 1, and four anodal connecting holes 24 that are connected with the lug of battery core in battery are set on Positive Poles first end 21.
The structure of negative pole pole 3 is consistent with the structure of Positive Poles 2, can be with reference to Fig. 5 to Fig. 7, negative pole pole 3 comprises negative pole pole first end and negative pole pole the second end, between negative pole pole first end and negative pole pole the second end, negative pole pole baffle plate is set, the external diameter of negative pole pole baffle plate is greater than the external diameter of negative pole pole first end, negative pole pole the second end is arranged on the side of cover plate near inside battery, negative pole pole first end is threaded with the negative pole clamp nut through cover plate, and four negative pole connecting holes that are connected with the lug of battery core in battery are set on negative pole pole first end.
The structure of anodal seal gasket 6 is consistent with the structure of safety valve seal gasket 9, can be with reference to Fig. 8 and 9, anodal seal gasket 6 comprises the 4th connecting portion and the 5th connecting portion be parallel to each other, between the 4th connecting portion and the 5th connecting portion, the 6th connecting portion is set, the two ends of the 6th connecting portion are separately positioned on the center of the 4th connecting portion and the 5th connecting portion, the 4th connecting portion, the center of the 6th connecting portion and the 5th connecting portion is connection setting and is formed for the second through hole that Positive Poles first end 21 passes, the first installing hole 11 on the 6th connecting portion and cover plate is complementary, so that the 6th connecting portion can pass the first installing hole 11, the external diameter of the 4th connecting portion and the 5th connecting portion all is greater than the diameter of the first installing hole 11, so that the 4th connecting portion and the 5th connecting portion are fitted in respectively the both sides of cover plate 1, the length of the 6th connecting portion equals the thickness of cover plate 1.
The structure of negative pole seal gasket 7 is consistent with the structure of safety valve seal gasket 9, can be with reference to Fig. 8 and 9, negative pole seal gasket 7 comprises the 7th connecting portion and the 8th connecting portion be parallel to each other, between the 7th connecting portion and the 8th connecting portion, the 9th connecting portion is set, the two ends of the 9th connecting portion are separately positioned on the center of the 7th connecting portion and the 8th connecting portion, the 7th connecting portion, the center of the 9th connecting portion and the 8th connecting portion is connection setting and is formed for the second through hole that negative pole pole first end passes, the second installing hole 12 on the 9th connecting portion and cover plate is complementary, so that the 9th connecting portion can pass the second installing hole 12, the external diameter of the 7th connecting portion and the 8th connecting portion all is greater than the diameter of the second installing hole 12, so that the 7th connecting portion and the 8th connecting portion are fitted in respectively the both sides of cover plate 1, the length of the 9th connecting portion equals the thickness of cover plate 1.
The present embodiment also discloses a kind of lithium battery, comprises power lithium battery cover plate assembly as above.
When battery toasts, the safety valve seal gasket can not installed, and larger relief hole can guarantee excellent baking efficiency, installs the safety valve seal gasket after baking completes before fluid injection; When cell internal pressure raises, air pressure can be pressed together on script elasticity on the safety valve seal gasket of inlet channel and push up, and makes the timely step-down of Leakage Gas, and after pressure decreased, the safety valve seal gasket is due to the sealing that can automatically reset of elasticity pressing active force.Because safety valve has larger steam vent, even when gas production rate inside is more, still can guarantee rapid exhaust, reduce inner pressure of battery.The integral design of both positive and negative polarity pole can effectively reduce the connection impedance, reduces the internal resistance of cell, improves the battery power output.
Know-why of the present invention has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present invention, and can not be interpreted as by any way limiting the scope of the invention.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, within these modes all will fall into protection scope of the present invention.
Claims (10)
1. a power lithium battery cover plate assembly, it is characterized in that, comprise cover plate (1), Positive Poles (2) and negative pole pole (3) are set on described cover plate (1), between described Positive Poles (2) and negative pole pole (3), safety valve (8) is set, described safety valve (8) detachably is arranged on described cover plate (1), described safety valve (8) comprises the valve body be connected with described cover plate (1), the junction of described valve body and described cover plate (1) arranges the safety valve seal gasket (9) of insulation, arrange in described valve body along described valve axis and connect the inlet channel (85) arranged and hold passage (84), the described diameter that holds passage (84) is greater than the diameter of described inlet channel (85), describedly hold in passage (84) and be positioned at the shrouding (89) that described inlet channel (85) locates to be provided for to seal the insulation of described inlet channel (85), described shrouding (89) can move along the described axis that holds passage (84) by elastic component is pressed together on described inlet channel (85) and the described junction that holds passage (84), steam vent (88) is set on described valve body, described steam vent (88) is communicated with the described passage (84) that holds.
2. power lithium battery cover plate assembly according to claim 1, it is characterized in that, the described passage (84) that holds detachably is provided for sealing the described capping (86) of holding passage (84) away from an end of described inlet channel (85), arrange described elastic component described holding in passage (84), described elastic component is Compress Spring (87), one end of described Compress Spring (87) is connected with described capping (86), and the other end of described Compress Spring (86) is connected with described shrouding (89).
3. power lithium battery cover plate assembly according to claim 2, it is characterized in that, described valve body comprises valve body first end (81) and valve body the second end (82), described capping (86) screw thread is screwed in described valve body first end (81), and described valve body the second end (82) passes described cover plate (1) and is threaded with safety valve clamp nut (10).
4. power lithium battery cover plate assembly according to claim 3, it is characterized in that, between described valve body first end (81) and described valve body the second end (82), valve body baffle plate (83) is set, the external diameter of described valve body baffle plate (83) is greater than the external diameter of described valve body first end (81), and the external diameter of described valve body first end (81) is greater than the external diameter of described valve body the second end (82).
5. power lithium battery cover plate assembly according to claim 4, it is characterized in that, described safety valve seal gasket (9) comprises the first connecting portion (91) and the second connecting portion (92) be parallel to each other, the 3rd connecting portion (93) is set between described the first connecting portion (91) and the second connecting portion (92), the two ends of described the 3rd connecting portion (93) are separately positioned on the center of the first connecting portion (91) and the second connecting portion (92), described the first connecting portion (91), the center of the 3rd connecting portion (93) and the second connecting portion (92) is connection setting and is formed for the first through hole (94) that described valve body the second end (82) passes.
6. power lithium battery cover plate assembly according to claim 5, it is characterized in that, described the 3rd connecting portion (93) is complementary with the 3rd installing hole (13) on described cover plate, so that described the 3rd connecting portion (93) can pass described the 3rd installing hole (13), the external diameter of described the first connecting portion (91) and the second connecting portion (92) all is greater than the diameter of described the 3rd installing hole (13), so that described the first connecting portion (91) and the second connecting portion (92) are fitted in respectively the both sides of described cover plate (1).
7. according to the described power lithium battery cover plate assembly of claim 1 to 6 any one, it is characterized in that annular uniform a plurality of described steam vents (88) on described valve body.
8. according to the described power lithium battery cover plate assembly of claim 1 to 6 any one, it is characterized in that, it is upper that described Positive Poles (2) detachably is arranged on described cover plate (1), and the junction of described Positive Poles (2) and described cover plate (1) arranges the anodal seal gasket (6) of insulation;
It is upper that described negative pole pole (3) detachably is arranged on described cover plate (1), and the junction of described negative pole pole (3) and described cover plate (1) arranges the negative pole seal gasket (7) of insulation.
9. power lithium battery cover plate assembly according to claim 8, it is characterized in that, described Positive Poles (2) comprises Positive Poles first end (21) and Positive Poles the second end (23), between described Positive Poles first end (21) and Positive Poles the second end (23), Positive Poles baffle plate (22) is set, the external diameter of described Positive Poles baffle plate (22) is greater than the external diameter of described Positive Poles first end (21), described Positive Poles the second end (23) is arranged on the side of described cover plate (1) near inside battery, described Positive Poles first end (21) is threaded with anodal clamp nut (4) through described cover plate (1),
Described negative pole pole comprises negative pole pole first end and negative pole pole the second end, between described negative pole pole first end and negative pole pole the second end, negative pole pole baffle plate is set, the external diameter of described negative pole pole baffle plate is greater than the external diameter of described negative pole pole first end, described negative pole pole the second end is arranged on the side of described cover plate (1) near inside battery, and described negative pole pole first end is threaded with the negative pole clamp nut through described cover plate (1).
10. a lithium battery, is characterized in that, comprises as power lithium battery cover plate assembly as described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104455069A CN103474591A (en) | 2013-09-26 | 2013-09-26 | Power lithium battery cover plate assembly and lithium battery with the power lithium battery cover plate assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104455069A CN103474591A (en) | 2013-09-26 | 2013-09-26 | Power lithium battery cover plate assembly and lithium battery with the power lithium battery cover plate assembly |
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| CN103474591A true CN103474591A (en) | 2013-12-25 |
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| CN2013104455069A Pending CN103474591A (en) | 2013-09-26 | 2013-09-26 | Power lithium battery cover plate assembly and lithium battery with the power lithium battery cover plate assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768189A (en) * | 2018-12-17 | 2019-05-17 | 蜂巢能源科技有限公司 | Cover plate of power battery |
| CN110824373A (en) * | 2019-12-09 | 2020-02-21 | 天津市捷威动力工业有限公司 | Lithium battery protection box |
| CN114976469A (en) * | 2022-05-10 | 2022-08-30 | 中国第一汽车股份有限公司 | Design method of power battery dehumidification explosion-proof system and electric vehicle |
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| CN2773913Y (en) * | 2004-07-22 | 2006-04-19 | 深圳华粤宝电池有限公司 | Battery cover plate assembly and battery therewith |
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2013
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109768189A (en) * | 2018-12-17 | 2019-05-17 | 蜂巢能源科技有限公司 | Cover plate of power battery |
| CN110824373A (en) * | 2019-12-09 | 2020-02-21 | 天津市捷威动力工业有限公司 | Lithium battery protection box |
| CN114976469A (en) * | 2022-05-10 | 2022-08-30 | 中国第一汽车股份有限公司 | Design method of power battery dehumidification explosion-proof system and electric vehicle |
| CN114976469B (en) * | 2022-05-10 | 2024-06-04 | 中国第一汽车股份有限公司 | Design method of dehumidification and explosion-proof system of power battery and electric vehicle |
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Application publication date: 20131225 |