CN217788514U

CN217788514U - High-safety lithium ion battery formation cabinet

Info

Publication number: CN217788514U
Application number: CN202221774195.1U
Authority: CN
Inventors: 陈建强; 凌剑; 沈两尼; 刘勇
Original assignee: Ganzhou Woneng New Energy Co ltd
Current assignee: Ganzhou Woneng New Energy Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-11-11
Anticipated expiration: 2032-07-11

Abstract

The application discloses a high-safety lithium ion battery formation cabinet, which comprises a cabinet body and a controller, wherein a plurality of battery cell installation stations are arranged in the cabinet body, each battery cell installation station comprises an upper pressing plate and a lower pressing plate, the upper pressing plates are connected with the cabinet body in a sliding mode, a positive contact, a negative contact and an isolation block are arranged on the upper surface of each lower pressing plate, the positive contacts and the negative contacts are respectively connected with the controller, the isolation blocks are arranged between the positive contacts and the negative contacts, and the isolation blocks protrude out of the front end face of the lower pressing plates; the cabinet body is provided with a driving mechanism, the driving mechanism is connected with the controller, the driving mechanism is connected with the upper pressure plate, and the driving mechanism can drive the upper pressure plate to move up and down. This application can block just, the negative pole contact meets on preceding terminal surface and the lower clamp plate of electric core through setting up the spacer, prevents that the situation that electric core casing and positive negative pole contact switched on from taking place, has improved the security performance of battery ization one-tenth cabinet, is favorable to the safety in production.

Description

High-safety lithium ion battery formation cabinet

Technical Field

The application belongs to the field of lithium battery production equipment, and more particularly relates to a high-safety lithium ion battery formation cabinet.

Background

The formation cabinet adopts automatic charge-discharge switching, automatic current setting and power failure protection aiming at the characteristics of a battery formation process with low capacity or better consistency, has a full Chinese microcomputer operation interface, and has advanced structure, reliable performance, simple and convenient operation and extremely high cost performance. The integration level of the existing hot-pressing formation cabinet is very high, and the functions of hot pressing, formation, capacity grading and the like are considered; can realize large-current charge and discharge; the applicable cell pressure range is large, and the pressure is stable and adjustable; can be compatible with various batteries and has strong universality.

When the battery cell is formed, the positive and negative electrode tabs of the battery cell are required to be connected with the positive and negative electrode contacts of the formation cabinet, so that the formation cabinet can charge and discharge the battery cell; the cell shell mainly comprises three layers: the outermost layer is an outer resistance layer which is mainly composed of nylon or polyethylene terephthalate (PET) and is used for protecting the middle layer from being scratched; the middle layer is a barrier layer, the main component of the middle layer is aluminum foil, and the middle layer is used for protecting form forming and preventing moisture from invading; the inner layer is a high-barrier layer, the main component is polypropylene, the inner layer can resist electrolyte corrosion, and each layer is bonded by a bonding agent; wherein, the aluminum foil in the middle layer is made of conductive material.

As shown in fig. 1, the end surfaces of the positive and negative contacts S1 of the conventional chemical conversion cabinet are on the same plane, and when the battery cell A1 is mounted on the chemical conversion cabinet, the front end surface of the battery cell may contact the positive and negative contacts S1 by a slight carelessness, so that the battery cell casing and the positive and negative contacts S1 form a loop to cause short circuit combustion, and thus, there is a serious potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the application provides a high-safety lithium ion battery formation cabinet, which comprises a cabinet body and a controller, wherein a plurality of battery cell installation stations are arranged in the cabinet body, each battery cell installation station comprises an upper pressing plate and a lower pressing plate, the upper pressing plate is in sliding connection with the cabinet body, a positive contact, a negative contact and an isolation block are arranged on the upper surface of the lower pressing plate, the positive contact and the negative contact are respectively connected with the controller, the isolation block is arranged between the positive contact and the negative contact, the isolation block protrudes out of the front end surface of the lower pressing plate, and a limit clamping groove matched with the isolation block is arranged on the lower surface of the upper pressing plate; the cabinet body is provided with a driving mechanism, the driving mechanism is connected with the controller, the output end of the driving mechanism is connected with the upper pressure plate, and the driving mechanism can drive the upper pressure plate to move up and down so as to drive the upper pressure plate to be abutted against or separated from the lower pressure plate.

As a further improvement of the application, the lower surface of the upper pressure plate is provided with a limiting clamping groove matched with the isolating block, and the isolating block can be clamped into the limiting clamping groove.

As a further improvement of the application, an insulating layer is arranged on the lower surface of the upper pressure plate.

As a further improvement of this application, actuating mechanism is including driving actuating cylinder and depression bar, drive actuating cylinder with the controller links to each other, drive actuating cylinder's output with the depression bar is connected, the depression bar respectively with the top board is connected.

As a further improvement of this application, the both sides of every electric core installation station all are equipped with the pilot lamp, the pilot lamp with the controller links to each other.

As a further improvement of this application, the lower extreme of the cabinet body is equipped with a plurality of cooling fan, cooling fan is the equidistance and distributes, cooling fan respectively with the controller links to each other.

As a further improvement of the present application, the number of the heat dissipation fans is five.

As a further improvement of the application, a starting button, an emergency stop button and a display screen are arranged on the cabinet body, and the starting button, the emergency stop button and the display screen are respectively connected with the controller.

As a further improvement of the application, the material of the isolation block is an insulating plastic material.

As a further improvement of the application, the width of the isolation block is 1-3 mm, and the length of the isolation block protruding out of the front end face of the lower pressing plate is 1-2 mm.

Compared with the prior art, the beneficial effect of this application is:

this application is through setting up the spacing block on the holding down plate, and the preceding terminal surface of spacing block protrusion holding down plate, when installing electric core to the formation cabinet, just of electric core, the negative pole ear is settled respectively on the positive contact and the negative pole contact of holding down plate, the spacing block can keep apart positive negative pole, and just, the negative pole contact meets before the terminal surface part spacing block can block electric core before the holding down plate with on the holding down plate, thereby prevent that the situation that electric core casing and positive negative pole contact switched on from taking place, the security performance of the formation cabinet of battery has been improved, be favorable to the safety in production.

Drawings

In order to more clearly illustrate the present application or prior art solutions, a brief description of the drawings needed for the embodiments or prior art descriptions is provided below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic diagram of a cell installation in the prior art;

fig. 2 is a schematic diagram of cell installation in an embodiment of the present application;

FIG. 3 is a schematic diagram of the overall structure of the embodiment of the present application;

fig. 4 is a schematic diagram of the structure of the upper platen and the lower platen in the embodiment of the present application.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the foregoing drawings are used for distinguishing between different objects and not for describing a particular sequential order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 2-4, a high-safety lithium ion battery formation cabinet comprises a cabinet body 1 and a controller, wherein a plurality of battery cell installation stations are installed in the cabinet body 1, two rows of battery cell installation stations are symmetrically distributed on the central axis of the cabinet body 1, and each row is provided with a plurality of battery cell installation stations in a stacking manner.

The battery cell installation station comprises an upper pressing plate 2 and a lower pressing plate 3, the upper pressing plate 2 is connected with the cabinet body 1 in a sliding mode, an anode contact 31, a cathode contact 32 and an isolating block 4 are arranged on the upper surface of the lower pressing plate 3, the anode contact 31 and the cathode contact 32 are respectively connected with the controller, the isolating block 4 is arranged between the anode contact 31 and the cathode contact 32, the isolating block 4 protrudes out of the front end face of the lower pressing plate 3, and the isolating block 4 is used for isolating the anode contact 31 and the cathode contact 32 on one hand and can also prevent the end face of the battery cell A1 from contacting with the anode contact 31 or the cathode contact 32 on the other hand, so that the safety performance of the battery formation cabinet is improved; a limiting clamping groove 21 matched with the isolating block 4 is formed in the lower surface of the upper pressing plate 2, and after the upper pressing plate 2 is pressed downwards, the isolating block 4 can be clamped into the limiting clamping groove 21, so that the upper pressing plate 2 is abutted to the lower pressing plate 3; the cabinet body 1 is provided with a driving mechanism, the driving mechanism is connected with the controller, the output end of the driving mechanism is connected with the upper pressing plate 2, and the driving mechanism can drive the upper pressing plate 2 to move up and down, so that the upper pressing plate 2 is driven to abut against or separate from the lower pressing plate 3.

During specific work, the positive and negative electrode ears of the battery cell A1 are connected with the positive contact 31 and the negative contact 32 on the lower pressing plate 3 respectively, then the driving mechanism is controlled to work through the controller, the driving mechanism drives the upper pressing plate 2 to press down, so that the isolation block 4 is clamped into the limiting clamping groove 21 until the upper pressing plate 2 is abutted against the lower pressing plate 3, the electrode of the battery cell A1 is fixed, and then subsequent formation operation is performed. The positive contact 31 and the negative contact 32 can be isolated by the isolating block 4 on the lower pressing plate 3, and the isolating block 4 protruding out of the front end face of the lower pressing plate 3 can block the front end face of the battery cell A1 from being connected with the positive contact and the negative contact on the lower pressing plate 3, so that the situation that the battery cell A1 shell is communicated with the positive contact and the negative contact 32 is prevented, the safety performance of a battery formation cabinet is improved, and the safety production is facilitated.

The isolation block 4 is made of an insulating plastic material, and the width of the isolation block 4 is controlled to be 1-3 mm, preferably 2 mm; the length of the front end surface of the isolation block 4 protruding out of the lower pressure plate 3 is controlled to be 1-2 mm, preferably 1.5 mm; in other embodiments, the isolation block 4 may also be made of other insulating materials, such as ceramic or rubber.

An insulating layer 22 is arranged on the lower surface of the upper pressing plate 2, and the insulating layer 22 can be made of rubber materials and is fixedly bonded with the upper pressing plate 2 in a sealing way; when the driving mechanism drives the upper pressing plate 2 to press down, the lower surface of the insulating layer 22 is abutted with the upper surface of the lower pressing plate 3; the provision of the insulating layer 22 can further separate the positive electrode contact 31 and the negative electrode contact 32 on the lower platen 3, thereby improving the safety of the formation.

All be connected with a actuating mechanism on every row of electric core installation station, actuating mechanism drives actuating cylinder 5 and depression bar 6, drives actuating cylinder 5 and links to each other with the controller, drives actuating cylinder 5's output and depression bar 6 fixed connection, and depression bar 6 is connected with top board 2 respectively. During the pressfitting, the controller control drives actuating cylinder 5 work, drives actuating cylinder 5 and drives depression bar 6 motion, and depression bar 6 drives the decline of top board 2 at the cabinet body 1, and the upper surface butt of the lower surface of top board 2 and holding down plate 3 is accomplished the pressfitting work.

In other embodiments, the driving mechanism may drive all the lower pressing plates 3 and the upper pressing plates 2 of each column of the cell installation stations except for the bottommost lower pressing plate 3 to press down simultaneously; specifically, except that the lower pressing plate 3 at the bottommost layer of each row of battery cell installation stations is not connected with the pressing rod 6, all the lower pressing plates 3 and the upper pressing plates 2 in the same row are connected with the pressing rod 6; and all top board 2 and holding down plate 3 except the holding down plate 3 of every row of electric core installation station bottommost all with cabinet body 1 sliding connection, electric core A1 installation completion back, when needing the pressfitting, drive actuating cylinder 5 and can drive all holding down plate 3 and top board 2 except holding down plate 3 of bottommost simultaneously and push down for top board 2 and the 3 pressfittings of corresponding holding down plate, thereby improve pressfitting efficiency.

And indicating lamps 7 are arranged on two sides of each battery cell installation station, and the indicating lamps 7 are connected with the controller. When the formation cabinet works normally, the indicator light 7 is in a turned-off state; when a certain electric core installation station has work abnormity, for example: if the current is over-current or over-voltage, the indicator light 7 corresponding to the battery core installation station is lightened to remind an operator of paying attention; set up the function that warning can be mentioned to pilot lamp 7, be favorable to the safety in production.

The lower extreme of the cabinet body 1 is equipped with five cooling fan 8, and five cooling fan 8 are the equidistance and distribute, and cooling fan 8 links to each other with the controller respectively. The heat radiation fans 8 are respectively arranged below the two rows of electric core installation stations, and at least one of the five heat radiation fans 8 blows air to the outside of the cabinet body 1 and at least one of the five heat radiation fans blows air to the inside of the cabinet body 1; can promote the circulation of air in the cabinet body 1 through setting up radiator fan 8, and make the inside and outside air of the cabinet body 1 can realize exchanging through radiator fan 8, reach the radiating purpose in the cabinet body 1.

The cabinet body 1 is provided with a starting button 9, an emergency stop button 10 and a display screen 11, and the starting button 9, the emergency stop button 10 and the display screen 11 are respectively connected with the controller. The startup button 9 is used for controlling the starting work of the formation cabinet, and the emergency stop button 10 is used for emergency stop under abnormal conditions; the display screen 11 has a touch function, is used for setting various processing parameters, and is also used for displaying the working state of the formation cabinet, so that an operator can conveniently check the working state.

The working principle is as follows:

firstly, turning on a power supply of the equipment, respectively connecting the positive electrode lug and the negative electrode lug of the battery cell A1 with the positive electrode contact 31 and the negative electrode contact 32 on the lower pressing plate 3, then turning on the starting button 9, and respectively controlling all the heat dissipation fans 8 to start working by the controller to dissipate heat of the cabinet body 1; meanwhile, the controller controls the driving cylinder 5 to work, the driving cylinder 5 drives the pressing rod 6 to move, and the pressing rod 6 drives the upper pressing plate 2 to descend in the cabinet body 1 until the insulating layer 22 of the upper pressing plate 2 is abutted to the upper surface of the lower pressing plate 3, so that the pressing work is completed. In the process of installing the battery cell A1, the positive and negative contacts can be isolated from the negative contact 32 by the isolating block 4, and the isolating block 4 protruding out of the front end face of the lower pressing plate 3 can block the front end face of the battery cell A1 from being connected with the positive and negative contacts 32 on the lower pressing plate 3, so that the situation that the shell of the battery cell A1 is conducted with the positive and negative contacts 32 is prevented, the safety performance of a battery formation cabinet is improved, and the safety production is facilitated. When a certain electric core installation station works abnormally, the indicator lamp 7 corresponding to the electric core installation station is lightened; at this time, the operator can stop the operation of the apparatus by operating the emergency stop button 10, and further check the specific cause of the abnormality.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of providing a more thorough understanding of the present disclosure. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications can be made to the embodiments described in the foregoing detailed description, or equivalents can be substituted for some of the features described therein. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields, and all the equivalent structures are within the protection scope of the present application.

Claims

1. The utility model provides a lithium ion battery ization of high security performance becomes cabinet which characterized in that: the battery cell installation station comprises an upper pressing plate and a lower pressing plate, the upper pressing plate is connected with the cabinet body in a sliding mode, a positive contact, a negative contact and an isolation block are arranged on the upper surface of the lower pressing plate, the positive contact and the negative contact are respectively connected with the controller, the isolation block is arranged between the positive contact and the negative contact, and the isolation block protrudes out of the front end face of the lower pressing plate;

the cabinet body is provided with a driving mechanism, the driving mechanism is connected with the controller, the output end of the driving mechanism is connected with the upper pressure plate, and the driving mechanism can drive the upper pressure plate to move up and down so as to drive the upper pressure plate to be abutted against or separated from the lower pressure plate.

2. The high-safety lithium ion battery formation cabinet according to claim 1, characterized in that: the lower surface of the upper pressure plate is provided with a limiting clamping groove matched with the isolating block, and the isolating block can be clamped into the limiting clamping groove.

3. The high-safety lithium ion battery formation cabinet according to claim 2, characterized in that: and an insulating layer is arranged on the lower surface of the upper pressing plate.

4. The high safety performance lithium ion battery formation cabinet according to any one of claims 1-3, wherein: the driving mechanism comprises a driving cylinder and a pressing rod, the driving cylinder is connected with the controller, the output end of the driving cylinder is connected with the pressing rod, and the pressing rod is connected with the upper pressing plate respectively.

5. The high-safety lithium ion battery formation cabinet according to claim 4, characterized in that: and indicating lamps are arranged on two sides of each battery cell installation station and connected with the controller.

6. The high-safety lithium ion battery formation cabinet according to claim 4, characterized in that: the lower extreme of the cabinet body is equipped with a plurality of cooling fan, cooling fan is the equidistance and distributes, cooling fan respectively with the controller links to each other.

7. The high-safety lithium ion battery formation cabinet according to claim 6, characterized in that: the number of the heat dissipation fans is five.

8. The high safety performance lithium ion battery formation cabinet according to any one of claims 1-3 or any one of claims 5-7, wherein: the intelligent cabinet is characterized in that a starting button, an emergency stop button and a display screen are arranged on the cabinet body, and the starting button, the emergency stop button and the display screen are respectively connected with the controller.

9. The high-safety lithium ion battery formation cabinet according to claim 8, characterized in that: the isolation block is made of insulating plastic materials.

10. The high-safety lithium ion battery formation cabinet according to claim 8, characterized in that: the width of the isolation block is 1-3 mm, and the length of the isolation block protruding out of the front end face of the lower pressing plate is 1-2 mm.