CN-224231690-U - Direct-discharge type ion conductivity detector

CN224231690UCN 224231690 UCN224231690 UCN 224231690UCN-224231690-U

Abstract

The utility model discloses an in-line ion conductivity detection instrument, which realizes automatic and multi-station ion conductivity detection and greatly improves experimental test efficiency and accuracy, and comprises a sealing box, a main body frame arranged in the sealing box, and a pressing component, a bearing component and a liquid injection component which are arranged on the main body frame; the sealing box is provided with a sealing door which is movably opened and closed, an air inlet hole and an air outlet hole, the pressing assembly comprises a pressing plate which moves up and down relative to the supporting assembly, a plurality of mounting holes are formed in the pressing plate at equal intervals along the horizontal direction, movable shafts are arranged in the mounting holes, a first spring is arranged between the movable shafts and the lower surface of the pressing plate, compression bars are oppositely arranged on the lower end faces of the movable shafts, the supporting assembly comprises a plurality of supporting plates which are arranged on a main body frame and are respectively opposite to the compression bars, electrolyte tanks are arranged on the supporting plates, and the electrolyte injection assembly is arranged on the side edges of the supporting plates and is used for automatically injecting electrolyte into the electrolyte tanks.

Inventors

HUANG LONGQIANG
SU YU
WENG NAN
WANG XIAN
Qi Qiongqiong
WANG YI

Assignees

元能科技（厦门）有限公司

Dates

Publication Date: 20260512
Application Date: 20250514

Claims (10)

1. An in-line ion conductivity detection instrument, which is characterized in that: The device comprises a sealed box, a main body frame, a pressing assembly, a bearing assembly and a liquid injection assembly, wherein the main body frame is arranged in the sealed box; the sealing box is provided with a sealing door which is movably opened and closed, and an air inlet hole and an air outlet hole; The pressing assembly comprises a pressing plate which moves up and down relative to the bearing assembly, wherein a plurality of mounting holes are formed in the pressing plate at equal intervals along the horizontal direction, movable shafts are arranged in the mounting holes, a first spring is arranged between the movable shafts and the lower surface of the pressing plate, and pressing rods are oppositely arranged on the lower end surfaces of the movable shafts; The bearing assembly comprises a plurality of bearing trays which are arranged on the main body frame and respectively opposite to the compression bars, and each bearing tray is provided with an electrolyte tank; the electrolyte injection assembly is arranged on the side edge of the bearing tray and is used for automatically injecting electrolyte into each electrolyte tank.
2. The in-line ion conductivity detection instrument according to claim 1, wherein: The main body frame comprises a top plate, a bottom plate, a plurality of struts and a back plate, wherein the top plate is parallel to the bottom plate, the struts and the back plate are supported between the top plate and the bottom plate, the pressing assembly is arranged below the top plate, and the bearing assembly is arranged above the bottom plate.
3. The in-line ion conductivity detection instrument according to claim 1, wherein: The device also comprises a dew point sensor and an air pressure sensor which are arranged in the sealed box and are respectively used for detecting humidity and air pressure in the sealed box.
4. The in-line ion conductivity detection instrument according to claim 1, wherein: The pressing device comprises a pressing component, and is characterized by further comprising a driving component used for driving the pressing component, wherein the driving component comprises a fixed support, a first motor, a first guide rod, a lifting plate, a connecting rod, a ladder nut and a ladder screw, the fixed support is arranged on the upper surface of the main body frame, the first guide rod is connected between the fixed support and the main body frame, the lifting plate is in sliding fit with the first guide rod, the connecting rod penetrates through the main body frame, the upper end and the lower end of the connecting rod are respectively connected with the lifting plate and the pressure plate, the ladder nut is arranged on the lifting plate and is in threaded connection with the ladder nut, the two ends of the ladder screw are respectively in rotating fit with the fixed support and the main body frame, and the first motor is in transmission connection with the ladder screw and is used for driving the ladder screw to rotate.
5. The in-line ion conductivity detection instrument according to claim 4, wherein: The output end of the first motor is in transmission connection with a driving wheel, the peripheral surface of the ladder-shaped screw rod is fixedly connected with a driven wheel, and a synchronous belt is tightly wound between the driving wheel and the driven wheel.
6. The in-line ion conductivity detection instrument according to claim 4, wherein: The ladder-shaped screw rod fixing device comprises a main body frame, a fixing support, a guide sleeve, at least two pairs of connecting rods and at least two pairs of guide sleeves, wherein the main body frame and the fixing support are respectively provided with a bearing for the ladder-shaped screw rod to be in running fit, the main body frame is provided with the guide sleeve for the connecting rods to penetrate through, and the connecting rods and the guide sleeve are arranged at equal angle intervals around the ladder-shaped screw rod.
7. The in-line ion conductivity detection instrument according to claim 1, wherein: The pressing device comprises a pressing plate, a pressing rod sleeve, a plurality of second guide rods, a pressing rod and at least one sealing ring, wherein the pressing rod sleeve is arranged below the pressing plate, the upper surface of the pressing rod sleeve is connected with the plurality of second guide rods, the second guide rods movably penetrate through the pressing plate, the second springs are arranged on the periphery of the second guide rods, the pressing rod is transmitted into the pressing rod sleeve from the lower surface of the pressing rod sleeve, and the at least one sealing ring is arranged between the periphery of the pressing rod sleeve and the pressing rod sleeve.
8. The in-line ion conductivity detection instrument according to claim 7, wherein: The lower end face of the movable shaft is provided with a spherical pressure head, the pressure rod sleeve is provided with a connecting terminal, the connecting terminal is electrically connected with the pressure rod and used for connecting an EIS module of an instrument, and the upper ends of the movable shaft and the second guide rod are axially limited through a screw rod positioned above the pressure plate.
9. The in-line ion conductivity detection instrument according to claim 1, wherein: The liquid injection assembly comprises liquid injection heads and electrolyte bottles which are arranged on the side edges of the supporting plate, and fluid pumps which are communicated with the liquid injection heads and the electrolyte bottles, and the liquid injection heads are horizontally movably matched above the electrolyte tanks.
10. The in-line ion conductivity detection instrument according to claim 9, wherein: The liquid injection assembly further comprises a two-way threaded valve communicated between the liquid injection head and the fluid pump and a liquid injection head support used for mounting the liquid injection head, wherein the liquid injection head support is arranged on a sliding block, and the sliding block is driven by a second motor to realize horizontal movement.

Description

Direct-discharge type ion conductivity detector Technical Field The utility model belongs to the technical field of battery detection, and particularly relates to an in-line ion conductivity detection instrument. Background The ionic resistance/diaphragm ionic conductivity of the pole piece is a parameter describing the complexity of a transmission path of lithium ions in an electrode pore or a diaphragm pore when a sample is immersed in electrolyte, directly influences the ion transmission efficiency of the battery, influences the multiplying power and the cycle performance of the battery, and is one of pole piece indexes focused by vast experiment research and development staff. The conventional ion conductivity detection method needs to be assembled and injected with electrolyte manually in a glove box, and then is tested through an electrochemical workstation, so that the operation is complex, and the overall test efficiency is low. Disclosure of utility model The utility model mainly aims to provide an in-line ion conductivity detection instrument, which solves the problems existing in the prior art, realizes automatic and multi-station ion conductivity detection and greatly improves experimental test efficiency and accuracy. In order to achieve the above object, the solution of the present utility model is: The direct-discharge type ion conductivity detection instrument comprises a sealing box, a main body frame, a pressing assembly, a bearing assembly and a liquid injection assembly, wherein the main body frame is arranged in the sealing box, the pressing assembly, the bearing assembly and the liquid injection assembly are arranged on the main body frame, the sealing box is provided with a sealing door which is movably opened and closed, an air inlet hole and an air outlet hole, the pressing assembly comprises a pressing plate which moves up and down relative to the bearing assembly, a plurality of mounting holes are formed in the pressing plate at equal intervals along the horizontal direction, a movable shaft is arranged in the mounting holes, a first spring is arranged between the movable shaft and the lower surface of the pressing plate, a pressing rod is arranged on the lower end face of the movable shaft in an opposite mode, the bearing assembly comprises a plurality of bearing trays which are arranged on the main body frame and are opposite to the pressing rods respectively, electrolyte tanks are arranged on the bearing trays respectively, and the liquid injection assembly is arranged on the side edges of the bearing trays and used for automatically injecting electrolyte into the electrolyte tanks. The main body frame comprises a top plate, a bottom plate, a plurality of struts and a back plate, wherein the top plate is parallel to the bottom plate, the struts and the back plate are supported between the top plate and the bottom plate, the pressing assembly is arranged below the top plate, and the bearing assembly is arranged above the bottom plate. The in-line ion conductivity detection instrument also comprises a dew point sensor and an air pressure sensor which are arranged in the sealed box and are respectively used for detecting humidity and air pressure in the sealed box. The direct-discharge type ion conductivity detection instrument further comprises a driving assembly used for driving the pressing assembly, the driving assembly comprises a fixed support, a first motor, a first guide rod, a lifting plate, a connecting rod, a ladder-shaped nut and a ladder-shaped screw rod, the fixed support is arranged on the upper surface of the main body frame, the first guide rod is connected between the fixed support and the main body frame, the lifting plate is in sliding fit with the first guide rod, the connecting rod penetrates through the main body frame, the upper end and the lower end of the connecting rod are respectively connected with the lifting plate and the pressure plate, the ladder-shaped nut is arranged on the lifting plate, the ladder-shaped screw rod is in threaded connection with the ladder-shaped nut, two ends of the lifting plate are respectively in rotating fit with the fixed support and the main body frame, and the first motor is in transmission connection with the ladder-shaped screw rod and used for driving the ladder-shaped screw rod to perform rotary motion. Preferably, the output end of the first motor is in transmission connection with a driving wheel, the peripheral surface of the ladder-shaped screw is fixedly connected with a driven wheel, and a synchronous belt is wound between the driving wheel and the driven wheel in a tensioning manner. The ladder-shaped screw rod fixing device comprises a main body frame, a fixing support, a ladder-shaped screw rod, a guide sleeve, at least two pairs of connecting rods and at least two pairs of guide sleeves, wherein the main body frame and the fixing support are respectively provided with a bearing for the ladder-shaped screw r