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Pump suction type quantitative evacuation priming device

A liquid injection device and vacuum pumping technology, which is applied to structural parts, electrical components, battery pack parts, etc., can solve problems such as multiple fillings, uneven acid control, and slow acid down speed, so as to simplify the production process , high injection precision, and the effect of reducing waste

Inactive Publication Date: 2009-06-24
HUIZHOU XINKEHUA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The former method is affected by factors such as the acid absorption speed of the plates and separators, the tightness of the electrode group, etc., and there are disadvantages such as slow acid discharge speed, and generally requires multiple fillings. Sometimes there will be battery leakage, which is not suitable for large-scale production

Method used

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  • Pump suction type quantitative evacuation priming device
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Embodiment

[0019] Such as figure 1 As can be seen, the pump-type quantitative vacuum liquid injection device proposed in this embodiment is especially suitable for filling electrolytes that require high control precision and are difficult to fill, such as sealed storage batteries and lithium batteries.

[0020] The device includes a pump-suction quantitative unit and a vacuum liquid injection unit connected thereto. The pump suction quantitative unit includes: a quantitative cylinder 6, which is connected with the vacuum liquid injection unit, and is used for quantitatively pumping liquid to be injected; pump liquid return suction pipe 1. Insert the dosing cylinder 6 from the liquid inlet of the dosing cylinder 6, the insertion depth is adjusted by the liquid volume adjustment rod 2 connected to the upper end of the pump liquid return suction pipe 1; the pump liquid buffer 8, the liquid outlet is connected with the pump liquid return suction pipe 1; The liquid pump 13 is connected with t...

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Abstract

The invention relates to a pumping quantitative vacuum priming device, comprising a pumping quantitative unit and a vacuum priming unit which is connected with the pumping quantitative unit; the pumping quantitative unit comprises a quantitative cylinder (6), a pump liquid back-suction tube (1), a liquid-measuring adjustable level (2), a pump liquid buffer (8) and a liquid taking pump (13); the pumping quantitative unit realizes to quantitatively pump liquid to be poured; the vacuum priming unit comprises a middle vessel (10), an upper clamping device (9), a lower clamping device (14), a vacuum buffer (5), a vacuum bump (11), a vacuum valve (3), an atmospheric valve (4), a bypass valve (7) and a vacuum meter (16), thus realizing to pump the liquid to be poured, to pump vacuum and to charge the liquid to be poured. The pumping quantitative vacuum priming device has high precision and high efficiency, and is energy-saving and environmental-protection; in addition, the charging loop is easily to be expanded; the device is suitable for charging aqueous solution such as acidic electrolyte bath, alkali electrolyte and the like and flowing liquid such as oil with low viscocity and oily solution.

Description

technical field [0001] The invention relates to the technical field of storage battery production, in particular to a pump-suction quantitative vacuum liquid injection device. Background technique [0002] At present, in the secondary battery production industry, the filling of battery electrolyte generally adopts artificial filling methods and self-flowing acid injection equipment, which is naturally absorbed by the battery; for ultra-small batteries that are difficult to absorb naturally, pickling, acid removal, and cleaning are used. , Refilling by drying. The former method is affected by factors such as the acid absorption speed of the plates and separators, the tightness of the electrode group, etc., and there are disadvantages such as slow acid discharge speed, and generally requires multiple fillings. Occasionally, there will be leakage of batteries, which is not suitable for large-scale production. The second method adopts pickling, acid rejection, cleaning, and dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/36H01M50/609H01M50/618
CPCY02E60/12Y02E60/10
Inventor 杭建国
Owner HUIZHOU XINKEHUA IND
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