CN216002803U

CN216002803U - Drying and sealing transport vehicle for battery pole plate

Info

Publication number: CN216002803U
Application number: CN202122604368.7U
Authority: CN
Inventors: 刘国庆
Original assignee: Panasonic Energy Wuxi Co Ltd
Current assignee: Panasonic Energy Wuxi Co Ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-03-11
Anticipated expiration: 2031-10-28

Abstract

The utility model provides a dry seal transport vechicle (30) for battery plate, its includes car frame body (1), is installed bottom frame body (2) that just can follow the upper and lower direction and remove on car frame body (1), be installed cover casing (3) that just is located this bottom frame body (2) top and can follow the upper and lower direction and be installed cover casing (3) last dew point adjusting device that has dew point meter (4) and the pressure regulating device that has pressure gauge (5), wherein, the fixed continuous ring packing that is provided with in all edges inboard of the periphery of the upper surface of bottom frame body with the lower surface of cover casing is provided with corresponding positioning mechanism respectively. The dry sealed transport vehicle allows the battery plates to be stored and transported in a vacuum or negative pressure-maintained manner in the form of bundles wound on carriers, and the dew point values and pressure values can be visually detected and adjusted during the entire process.

Description

Drying and sealing transport vehicle for battery pole plate

Technical Field

The utility model relates to a dry sealed transport vechicle for battery polar plate, more specifically say, relate to the dry sealed transport vechicle that can store and transport battery polar plate dry, sealed and keep vacuum or negative pressure ground.

Background

Battery plates are important components of secondary batteries, and their performance is significantly affected by the real-time moisture content and oxygen content in the ambient environment during production, storage and transportation. Specifically, most of the positive and negative active materials of the secondary battery are micron-sized or nano-sized particles, so that moisture in the air is easily absorbed to cause deliquescence, the specific surface area of the positive electrode material is relatively large, the surface of the positive electrode material is easily subjected to reaction by absorbing the moisture in the air, quality events such as poor thickness and battery CID actuation are easily caused in the subsequent charging and discharging processes, and strict control is required for the moisture. Therefore, conventionally, when the positive electrode material is transported between two different factories or between two different plants, the following steps are required before the transportation: and (3) wrapping by using a sealed aluminum foil bag, packaging and sealing by using a heat sealing machine, hoisting into a paperboard box for placing, filling a foaming plate, and manually packing, namely packing the polar plates. However, the packing of the electrode plates requires cooperation of a plurality of persons, the hoisting operation risk is high, the overall operation efficiency is low, the sealed bag is easily damaged, and the batch of products is poor.

Chinese patent document CN206813129U discloses a sealed transport vehicle for battery pole pieces after a shearing process, which includes a sealed vehicle main body, the vehicle main body has a hollow left chamber and a hollow right chamber therein, and the left chamber and the right chamber are communicated with each other; the top of the left chamber is communicated with an external nitrogen making machine through pipelines respectively, and the external nitrogen making machine fills nitrogen into the left chamber and the right chamber, so that the contact between the battery pole piece and the external air is further effectively prevented through the nitrogen, and the battery pole piece is kept in a dry state. The top of the right chamber is provided with a pressure gauge for detecting the air pressure in the left chamber and the right chamber, and when the pressure reaches the pressure numerical range preset by a user, the external nitrogen making machine is controlled to stop inflating, so that after the left chamber and the right chamber are inflated with nitrogen, the air pressure in the left chamber and the right chamber is maintained in the pressure numerical range preset by the user. The left side and the right side of the vehicle body are respectively provided with a vehicle door which can be opened in a horizontal rotating mode, and the battery pole pieces are placed into the left cavity and the right cavity through the vehicle doors.

The sealed transport vehicle for the battery pole pieces prevents the battery pole pieces after the shearing process from contacting with the outside air in the transport process through the complicated mechanical structure configuration and the one-time nitrogen charging, so that the moisture content and the like of the battery pole pieces cannot be seriously influenced by the outside air, and the battery pole pieces are maintained in a dry state.

However, the above-mentioned sealed transport vehicle for battery pole pieces is directed at the transportation of small-sized electrode sheet coiled materials after the shearing process, the whole is a pure mechanical device, there is no control circuit, the charging of nitrogen is manually stopped through the mechanical pressure display value of the cavity, the internal mechanical structure is set up complicatedly, the available space is limited, the transport vehicle is heavy as a whole, a special traction mechanism is needed, the large-sized electrode sheet coiled materials before the shearing process cannot be sealed and transported really and simply, the dew point requirement is low, the sealing requirement is low, the dew point state monitoring is not available in the vehicle, no nitrogen conveying and control pipeline is available in the cavity, and the moisture content and the air content cannot be precisely confirmed and adjusted in real time.

SUMMERY OF THE UTILITY MODEL

In view of the state of the art, the inventors of the present invention have conducted intensive studies on how to store and transport bundles of battery plate materials, which have not been subjected to a cutting process, as a whole under conditions of complete sealing and real-time monitoring and adjustment of a sealing state and a dew point environment state, and thus have arrived at the present invention.

The utility model aims at providing a dry sealed transport vechicle that is storing and transporting and can real time monitoring and adjust with battery polar plate drying, sealed and keep vacuum or negative pressure ground.

The gist of the present invention is as follows.

(1) The utility model provides a dry sealed transport vechicle for battery polar plate which characterized in that, it includes: the bicycle frame body, be installed chassis body that just can follow the up-and-down direction and remove on the bicycle frame body, be installed the cover casing that can follow the up-and-down direction and be located this chassis body top on the bicycle frame body and be installed dew point adjusting device who has the dew point meter and the pressure regulating device who has the pressure gauge on the cover casing, wherein, the fixed continuous ring packing that is provided with in all edges inboard of the periphery of the upper surface of chassis body with the lower surface of cover casing is provided with corresponding positioning mechanism respectively.

(2) The dry sealing transport vehicle according to the above (1), further comprising a lift mechanism connected to the cover housing in a floating manner, wherein the lift mechanism comprises a protruding support body-shaped buckle provided on an outer surface of the cover housing and a lifting rod mounted on the frame body and capable of moving in an up-and-down direction.

(3) The dry sealed transport vehicle according to the above (1), wherein the dew point adjusting means and the pressure adjusting means are provided on an upper surface of the cover housing.

(4) The dry seal carrier vehicle according to the above (1), wherein the annular seal rings are two or more rubber seal rings disposed in parallel inside and outside.

(5) The dry sealing transport cart in (1) above, wherein the positioning mechanism comprises a conical protrusion disposed on the upper surface of the bottom frame body and a sleeve disposed on the lower surface of the cover housing and matching with the conical protrusion.

(6) The dry seal carrier vehicle of (5) above, wherein the conical protrusions are located near the annular sealing ring.

(7) The dry seal carrier vehicle according to the above (1), wherein when the dry seal carrier vehicle is operated, the upper surface of the chassis and the lower surface of the cover housing are brought into close contact with each other by the annular seal ring and the positioning mechanism to form a sealed space.

(8) The dry sealed transport vehicle of any of (1) to (7), wherein the battery plates are placed in the transport vehicle in the form of a bundle wrapped around a carrier.

(9) The dry sealing transport cart according to any one of (1) to (7) above, wherein the battery electrode plate is a positive electrode plate of a lithium secondary battery.

(10) The dry sealed transport vehicle according to the above (1) to (7), wherein the sealed space is kept in a vacuum or negative pressure.

Effect of the utility model

The utility model discloses a dry sealed transport vechicle for battery polar plate can store and transport the form that the battery polar plate was placed in this transport vechicle with the bundle material of coiling on the bracket dry, sealed and keep vacuum or negative pressure to can real-time visual detection and adjust dew point value and pressure value.

Drawings

Fig. 1 is a schematic view of the dry sealing transportation vehicle for battery plates of the present invention.

Figure 2 is a schematic view of a bundle formed by wrapping battery plates around a carrier, placed on a bottom frame.

Fig. 3(a) and 3(b) are schematic diagrams showing a bottom frame body and a cover case of the dry sealed transport vehicle according to the present invention in a half-opened state and a closed state, respectively.

Fig. 4(a) and 4(b) are schematic diagrams showing a lifted state and a lowered state of the float-coupled lifter, respectively.

Fig. 5(a) and 5(b) are schematic diagrams of the positioning mechanisms of the bottom chassis and the cover case before and after fitting, respectively.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and examples, which are illustrative only and can take various forms. Furthermore, the drawings disclosed in the present specification are principally intended to be schematically illustrated. That is, the dimensional ratio in the drawings does not necessarily coincide with the actual dimensional ratio, and the dimensional ratio does not necessarily coincide between the drawings.

First, the present invention will be described schematically with reference to a dry sealed transport vehicle for battery plates. Fig. 1 is a schematic view of the dry sealing transportation vehicle for battery plates of the present invention. This dry sealed transport vechicle 30 includes car frame body 1, is installed underframe body 2 that just can follow the up-and-down direction and remove on the car frame body 1 and be located the cover casing 3 that can follow the up-and-down direction and install of this underframe body 2 top cover casing 3 is last to have dew point meter 4's dew point adjusting device and to have pressure gauge 5's pressure regulating device, wherein, the fixed continuous ring packing that is provided with in all edges inboard of the periphery of the upper surface of underframe body with the lower surface of cover casing is provided with corresponding positioning mechanism respectively. The dry sealed transport vehicle is also provided with hydraulic means, braking means, and a rechargeable power supply for supplying power to the dew point and pressure regulating means, but these are not shown in fig. 1. The cover housing is a housing having an opening on a lower surface.

Fig. 2 is a schematic view of a bundle 20 formed by wrapping battery plates 11 around a carrier 12, which is placed on the bottom frame 2. The bales 20 are placed in a unitary form directly into the dry, sealed carrier vehicle 30 shown in fig. 1 and then transported in a sealed manner.

Fig. 3(a) and 3(b) are schematic diagrams showing a bottom frame body and a cover case of the dry sealed transport vehicle according to the present invention in a half-opened state and a closed state, respectively. When the dry seal carrier is ready to be closed, the cover case 3 is moved downward so that the upper surface of the chassis 2 and the lower surface of the cover case 3 are brought into close contact with each other by the weight of the annular seal ring 6, the positioning mechanism, and the cover case 3 itself to form a sealed space. When the dry sealing transport vehicle works, the upper surface of the bottom frame body 2 and the lower surface of the cover shell body 3 are tightly contacted together through the annular sealing ring and the positioning mechanism to form a closed space. The enclosed space is maintained at a vacuum or negative pressure.

Preferably, the annular seal rings 6 are two or more rubber seal rings arranged in parallel inside and outside. The rubber packing may be fixed to the upper surface of the base frame body 2 in a press-fitted manner.

The bottom frame body can conveniently receive finished products from the previous working procedure and is easy to place on site. When the sealing vehicle needs to leave the drying area for transregional transportation, the sealing vehicle is operated to enable the bottom frame body and the pole plate materials in the form of bundles and the like to ascend and move to a limited height, and then the cover shell body descends to complete sealing with the bottom frame body by means of self weight.

In order to easily lift and drop the cover housing, a lift mechanism is mounted on the dry sealing truck in floating connection with the cover housing 3. As shown in fig. 4(a) and 4(b), the lifter includes a convex support-like catch 7a provided on the outer surface of the cover case and a lifting rod 7b mounted on the frame body to be movable in the up-down direction. The lifting rod 7b is provided with a U-shaped groove matched with the buckle 7 a. Two identical raising and lowering mechanisms are symmetrically arranged on both left and right sides of the cover case 3.

Fig. 4(a) and 4(b) are schematic diagrams showing a lifted state and a lowered state of the float-coupled lifter, respectively. As shown in fig. 4(a), in the raised state of the lift mechanism, the lifting rod 7b of the lift mechanism is moved upward by the power supplied by a hydraulic device (not shown), and the cover housing is raised after the U-shaped groove of the lifting rod 7b and the convex support-shaped buckle 7a complete the locking connection. As shown in fig. 4(b), in the falling state of the lift mechanism, the stopper of the lift lever 7b of the lift mechanism is opened and moved downward, the U-shaped groove of the lift lever 7b is automatically released from the locking connection with the convex support body-shaped catch 7a, and the cover case is directly dropped by its own weight.

Fig. 5(a) and 5(b) are schematic diagrams of the positioning mechanisms of the bottom chassis and the cover case before and after fitting, respectively. From the viewpoint of easy alignment and easy positioning connection, the positioning mechanism preferably includes a tapered convex body 8a provided on the upper surface of the chassis 2 and a sleeve 8b provided on the lower surface of the cover housing 3 to be fitted with the tapered convex body 8 a. With the positioning mechanism having such a structure, the tapered protrusion 8a and the sleeve 8b can be easily aligned, and the cover case 3 and the chassis body 2 can be positioned and connected by directly dropping a predetermined distance by the self weight of the cover case after the brake device between the cover case and the chassis body is opened. Two positioning mechanisms are generally arranged symmetrically on the left and right sides.

The conical projection is preferably located adjacent the o-ring, more preferably adjacent the innermost ring. In this case, the cover case is pressed against the annular seal ring of the chassis by its own weight, and a closed space can be easily formed.

After the battery plates have been manufactured at the production plant, they are typically transported in the form of bundles wound on pallets to a further plant, such as a shearing plant. Due to the fact that the production plant is at a distance from the next plant, such as a cutting plant, and the production schedules between two successive plants cannot be matched in real time, the transport of the battery plates in the form of bundles and the waiting before entering the next process take a time period. However, since a battery plate, particularly a positive plate of a lithium secondary battery, is very likely to absorb moisture in the air to cause deliquescence or a reaction, and the battery plate is also very likely to react with oxygen in the air, the performance of the battery plate is significantly affected even when the battery plate is exposed to the air for a short period of time, such as 30 minutes to 2 hours.

Through adopting the utility model discloses an above-mentioned dry sealed transport vechicle directly places battery plate 11 with bundle 20 form of coiling on bracket 12 the utility model discloses an in the above-mentioned transport vechicle and with this transport vechicle inside adjust into vacuum or negative pressure state after transport in the workshop next workshop such as workshop with shearing workshop.

The dew point meter 4 detects the moisture content in the transport vehicle, when the moisture content exceeds a preset dew point value, such as-40 ℃, dry negative pressure air is required to be used immediately to discharge the moisture in the transport vehicle to the outside, and the transport vehicle can be used for transporting after the preset dew point value is reached.

The pressure state inside the carriage is detected by the pressure gauge 5, and when the pressure state exceeds a predetermined value, for example, -85Kpa, dry negative pressure air is immediately used to discharge the air in the carriage to the outside to maintain a vacuum or negative pressure state.

In order to facilitate visual real-time viewing of the dew point and air pressure within the transport vehicle during storage and transport, it is preferred that both the dew point adjusting means and the pressure adjusting means are provided on the upper surface of the cover housing.

The utility model discloses a dry sealed transport vechicle has the tractor in the front mounted of car frame body and is equipped with below and be used for the wheel (not shown) that remove, can remove through the manpower promotion, also can hang on vehicles such as electric motor car as the pendant and is drawn required place.

The utility model discloses a battery polar plate's characteristic can not receive the negative effects such as moisture and oxygen even the time period of storing and transporting 48 hours in the dry sealed transport vechicle.

The utility model discloses a dry sealed transport vechicle is preferred to be applicable to lithium secondary battery's positive plate, this is because can avoid lithium secondary battery's positive plate easily to absorb moisture in the air and take place non-reversible chemical reaction, can avoid lithium secondary battery's positive plate and the oxygen in the air to take place to react moreover fully.

(examples)

With lithium secondary battery positive plate with convolute directly placing in the bundle material form on the bracket the utility model discloses an in the above-mentioned transport vechicle, remove rolling process or shearing process workshop with above-mentioned positive plate from the workshop, moving distance 200 meters, transport in-process full-sealing negative pressure ground and keep, real time monitoring cover casing internal seal state and dew point environment state. Compared with the manual operation packing, namely the pole plate packing mode, the manual packing, the packing material and the packing time are not needed, more than 2 manual operations are reduced in each unit time, more than 30 minutes are saved by moving one roll of the positive plate material, the working efficiency is greatly improved by integrating one working cycle, and the capacity is greatly improved.

To sum up, the utility model discloses a dry sealed transport vechicle can carry out the form of placing in this transport vechicle battery polar plate with the bundle material of coiling on the bracket dry, seal and keep vacuum or negative pressure ground to store and transport, can carry out visual detection and regulation to dew point value and pressure value in whole transportation, can make the performance of battery polar plate part not receive harmful effects, reduce the defective rate of battery polar plate.

Advantages and modifications of the invention will readily occur to those skilled in the art, and the scope of the invention is not limited by the foregoing exemplary embodiments and the specific details. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a dry sealed transport vechicle for battery polar plate which characterized in that, it includes: the bicycle frame body, be installed chassis body that just can follow the up-and-down direction and remove on the bicycle frame body, be installed the cover casing that can follow the up-and-down direction and be located this chassis body top on the bicycle frame body and be installed dew point adjusting device who has the dew point meter and the pressure regulating device who has the pressure gauge on the cover casing, wherein, the fixed continuous ring packing that is provided with in all edges inboard of the periphery of the upper surface of chassis body with the lower surface of cover casing is provided with corresponding positioning mechanism respectively.

2. The dry seal carrier of claim 1, further comprising a lift mechanism in floating connection with the hood housing, the lift mechanism comprising a raised support-like catch disposed on an outer surface of the hood housing and a lift rod mounted on the frame body for up and down movement.

3. The dry seal carrier of claim 1, wherein the dew point adjustment device and the pressure adjustment device are disposed on an upper surface of the shroud housing.

4. The dry seal carrier vehicle of claim 1, wherein the annular seal ring is more than two rubber seal rings arranged in parallel inside and outside.

5. The dry seal carrier of claim 1, wherein the positioning mechanism comprises a conical boss disposed on an upper surface of the bottom frame and a sleeve mating with the conical boss disposed on a lower surface of the shroud housing.

6. The dry seal carrier of claim 5, wherein said conical embossment is located proximate to said o-ring.

7. The dry seal carrier as claimed in claim 1, wherein the upper surface of the chassis and the lower surface of the cover housing are brought into close contact with each other by the annular seal ring and the positioning mechanism to form a sealed space when the dry seal carrier is operated.

8. The dry sealed transport cart of any of claims 1 to 7, wherein said battery plates are placed in said transport cart in the form of bundles wrapped around a carrier.

9. A dry sealed transport vehicle according to any of claims 1 to 7, wherein the battery plate is a positive plate of a lithium secondary battery.

10. The dry sealed transport vehicle of claim 7, wherein the enclosed space is maintained at a vacuum or negative pressure.