The battery liquid-filling equipment of antidrip
Technical field
The present invention relates to the battery processing device technical field, relate in particular to the battery liquid-filling equipment of antidrip.
Background technology
General lithium battery fluid injection operation adopts manually fluid injection in drying box or glove box, and efficient is low, absorption is slow.Adopt vacuum liquid filling effectively to address the above problem, general vacuum electrolyte filling device comprises vacuum extractor and priming device, priming device comprises height above sea level pump and the fluid injection pin that is attached thereto, as shown in Figure 1, fluid injection pin 1 passes cavity 21, fluid injection pin 1 upper end connects the height above sea level pump, fluid injection pin 1 lower ending opening, cavity 21 is provided with passage 22 and is connected with vacuum extractor, be provided with a fixed gap between cavity 21 lower ends and fluid injection pin 1, carry out the vacuum pumping of battery 5 inside by this space, when carrying out the fluid injection operation, the fluid injection pin 1 of this equipment and cavity 21 move simultaneously.
When adopting said apparatus to carry out fluid injection, surface tension due to electrolyte, the electrolyte of understanding some is attached on the fluid injection pin, the fluid injection pin is extracted from inside battery the electrolyte that adheres to above rear and is easily dropped at outside batteries, and electrolyte has very strong corrosivity, so has very large potential safety hazard in this transportation after battery and use procedure.
Summary of the invention
The present invention is directed to the prior art deficiency, the battery liquid-filling equipment of antidrip is provided, this kind battery liquid-filling device can prevent effectively that electrolyte from dropping onto the outside of battery, improves the fail safe in battery transportation and use procedure.
in order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: the battery liquid-filling equipment of antidrip, comprise the fluid injection pin and vacuumize housing, described vacuumizing is provided with the passage that connects vacuum extractor on housing, the described enclosure interior that vacuumizes is a cavity, describedly vacuumize the housing upper surface and the lower surface is provided with the first coaxial through hole and the second through hole, fit in described the first through hole and be equipped with described fluid injection pin, be provided with the sealing plate that is rotationally connected with described lower surface below described the second through hole, described sealing plate is circular plate body, described sealing plate upper surface is provided with fillet, described sealing plate one side is provided with flange, described flange both sides are provided with rotating shaft, be provided with the torsion spring installing hole in described rotating shaft, be provided with the groove that coordinates with described flange on described lower surface.When fluid injection, the lower surface props up the liquid injection hole of battery, the fluid injection pin moves downward, back down sealing plate, vacuum extractor carries out vacuum pumping, and the fluid injection pin carries out fluid injection, when fluid injection is completed, the fluid injection pin moves upward, and the torsion spring effect on sealing plate makes sealing plate rotate and blocks the second through hole, and then the fluid injection pin moves upward together with vaccum case again.So just effectively prevented that on the fluid injection pin, residual electrolyte drops onto outside batteries.
In technique scheme, preferred, the described housing lower surface of vacuumizing is provided with boss, and described the second through hole is arranged on described boss.Boss is set makes the liquid injection hole of battery easily aim at this priming device.
In technique scheme, preferred, described boss arranged outside has sealing ring.Sealing ring is set improves the sealing that vacuumizes housing and battery, improve vacuumizing effect.
The present invention compared with prior art has following beneficial effect: the present invention effectively prevents electrolyte drippage residual in the fluid injection pin, has prevented that like this electrolyte from dropping onto outside batteries, effectively raises the fail safe in battery transportation and use procedure.
Description of drawings
Fig. 1 is the cutaway view of background technology.
Fig. 2 is the cutaway view of embodiment of the present invention state one.
Fig. 3 is the cutaway view of embodiment of the present invention state two.
Fig. 4 be embodiment of the present invention sealing plate vertical view.
Embodiment
below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail: referring to Fig. 2 to Fig. 4, the battery liquid-filling equipment of antidrip, comprise fluid injection pin 1 and vacuumize housing 2, described vacuumizing is provided with the passage 22 that connects vacuum extractor on housing 2, described housing 2 inside of vacuumizing are a cavity 21, describedly vacuumize housing 2 upper surfaces 23 and lower surface 24 is provided with the first coaxial through hole a and the second through hole b, fit in described the first through hole a and be equipped with described fluid injection pin 1, be provided with the sealing plate 6 that is rotationally connected with described lower surface 24 below described the second through hole b, described sealing plate 6 is circular plate body, described sealing plate 6 upper surfaces are provided with fillet, described sealing plate 6 one sides are provided with flange 61, described flange 61 both sides are provided with rotating shaft 62, be provided with torsion spring installing hole 63 in described rotating shaft 62, be provided with the groove 25 that coordinates with described flange 61 on described lower surface 24.
Described housing 2 lower surfaces 24 of vacuumizing are provided with boss 3, and described the second through hole b is arranged on described boss 3.Boss 3 is set makes the liquid injection hole 51 of battery 5 easily aim at this priming device.
Described boss 3 arranged outside have sealing ring 4.Sealing ring 4 is set improves the sealing that vacuumizes housing 2 and battery 5, improve vacuumizing effect.