Circulating impurity removal device for lithium battery

Abstract

The utility model discloses a circulating impurity removal device for lithium batteries, which comprises a circulating moving device internally provided with a cavity for battery cells to pass through; the electromagnet is arranged on the circulating moving device, and the electromagnet can move around the battery cell under the driving of the circulating moving device; the electromagnet is electrified so as to adsorb scrap iron on the battery cell; and the electromagnet loses power so as to remove the scrap iron.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery production, in particular to a lithium battery circulation impurity removal device. Background Art

[0002] As an important power component of new energy vehicles, the battery quality of lithium batteries is an important determinant of vehicle speed and mileage. Among them, the production of lithium batteries, coating, rolling and other processes are key process steps related to battery quality. The production of this type of equipment has high requirements for battery cell quality, so demagnetization of battery cells is particularly important. It is extremely important to reduce manual intervention during the demagnetization process and avoid secondary pollution.

[0003] At present, the iron removal device commonly used near the roller press and winding of all lithium battery production equipment requires fixed magnetic bars for iron removal; after the magnetic bars have been used for a period of time, they need to be replaced, or impurities need to be cleaned manually online or offline; and iron filings are very likely to fall during the cleaning process, causing secondary pollution; at the same time, with the complexity of the battery cell process and the increasing requirements for operators and equipment environment control, the industry began to hope for an ideal automated battery cell iron removal solution. Summary of the invention

[0004] In view of the above technical problems, the utility model provides a lithium battery circulation impurity removal device, which controls the electromagnet to be energized and de-energized periodically, and periodically presents two states of magnetism and loss of magnetism; at this time, the electromagnet will perform two actions of absorbing iron filings and discharging iron filings; thereby, battery cells and collection boxes are respectively arranged at the corresponding action positions of the electromagnet, which plays the role of automatically cleaning the debris on the battery cells and automatically cleaning the debris on the electromagnet.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical means:

[0006] A lithium battery circulation impurity removal device, comprising:

[0007] A circulating moving device, wherein a cavity is provided inside for the battery cells to pass through;

[0008] An electromagnet is arranged on the circulating moving device, and driven by the circulating moving device, the electromagnet can move around the battery core;

[0009] The electromagnet is energized to absorb the iron filings on the battery core;

[0010] The electromagnet is de-energized to remove the iron filings.

[0011] The circulating moving device comprises: an active side fixing plate, a passive side fixing plate, a driving motor and a synchronous belt;

[0012] The active side fixing plate and the passive side fixing plate are symmetrically arranged outside the two ends of the battery core; a charged rail is arranged between the active side fixing plate and the passive side fixing plate; the charged rail is arranged along the motion track of the cyclic moving device, and is used to conduct current to the electromagnet passing by;

[0013] The driving motor is arranged on the outside of the active side fixing plate, and is connected to the driving wheel meshed with the inner side of the synchronous belt, so as to drive the synchronous belt to rotate;

[0014] The synchronous belt is connected to the electromagnet; the synchronous belt is meshed with a driven wheel on the opposite side of the driving wheel; the synchronous belt is used to drive the electromagnet to rotate synchronously.

[0015] The electromagnets are provided in plurality and arranged in an array along the rotation direction of the synchronous belt.

[0016] The synchronous belt is made of insulating material, and a socket for inserting the electromagnet is arranged on its surface.

[0017] The live rails are strip-shaped electric posts, which are symmetrically arranged on the front and rear sides of the battery core.

[0018] The electrified rail includes a positive pole and a negative pole; the horizontally placed positive pole and negative pole are symmetrically arranged on the inner and outer sides of the synchronous belt.

[0019] It also includes: a track for the top end of the electromagnet to slide is arranged at the bottom of the electrified guide rail.

[0020] A collection box is arranged at a position of the circulating moving device away from the battery core, and is used to collect iron filings discharged when the electromagnet loses power.

[0021] The collection box adopts a negative pressure box to wrap the two ends of the circulating moving device for collecting iron filings.

[0022] A collecting port for discharging iron filings is provided on one side of the collecting box.

[0023] Beneficial effects:

[0024] First, the impurity removal device described in the utility model uses a servo motor as a power component to control the cyclic motion of the conveyor; at this time, the electromagnet rotating around the battery core and the electric pole of the conductive component are constantly in contact and separation, resulting in magnetism generation and removal; and when magnetism is generated, it is close to the battery core, just to adsorb iron filings and impurities; when magnetism is removed, it is far away from the battery core and located at the collection box, and the magnetic impurities are just dropped into the collection box by the electromagnet, achieving the effect of collecting magnetic impurities.

[0025] Second, the impurity removal device described in the utility model can control the magnetic force of the electromagnet by only adjusting the current intensity of the conductive component, thereby adjusting the demagnetization intensity; furthermore, the utility model can adjust the magnetic force in real time according to magnetic impurities of different sizes, thereby achieving the effect of intelligent impurity removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the impurity removal device of the utility model;

[0027] Figure 2 This is a schematic diagram of the overall structure of the impurity removal device of the utility model from another angle;

[0028] Figure 3 This is a cross-sectional view of the internal structure of the impurity removal device of the utility model;

[0029] Figure 4 It is a top view of the impurity removal device of the utility model.

[0030] In the figure: 001, active side fixing plate; 002, passive side fixing plate; 003, drive motor; 004, active wheel; 005, passive wheel; 006, synchronous belt; 007, transition plate; 008, collecting port A; 009, electromagnet; 010, positive pole A; 011, positive pole B; 012, negative pole A; 013, negative pole B; 014, negative pressure box A; 015, negative pressure box B; 016, battery cell; 017, positive pole of electromagnet; 018, negative pole of electromagnet; 019, collecting port B. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] Reference Figure 1-Figure 4 As shown, the utility model is an online circulation cleaning device for a magnetic rod for lithium battery equipment, a circulating moving device, which is provided with a cavity for a battery core 016 to pass through, and is used to drive an electromagnet 009 to generate two states of magnetization and demagnetization when rotating around the battery core 016; wherein, an active side fixing plate 001 and a passive side fixing plate 002 are respectively provided on the left and right sides of the battery core 016; the trigger component is arranged between the active side fixing plate 001 and the passive side fixing plate 002, and is used to conduct current to the electromagnet 009 passing through.

[0033] The circulating moving device drives the electromagnet 009 to be magnetized and demagnetized periodically, so that the electromagnet 009 switches back and forth between the two states of absorbing iron filings and discarding iron filings; then, the magnetized part of the electromagnet 009 is moved close to the battery core 016 to facilitate the absorption of iron filings; the demagnetized part of the electromagnet 009 is moved close to the collection box to facilitate the recycling of iron filings.

[0034] Specifically, the circulating moving device includes: the circulating moving device includes a driving motor 003 and a synchronous belt 006; the driving motor 003 is arranged on the outer side of the active side fixed plate 001, and is connected to the driving wheel 004 meshed with the inner side of the synchronous belt 006, and is used to drive the synchronous belt 006 to rotate; the synchronous belt 006 is connected to the electromagnet 009; the synchronous belt 006 is meshed with a driven wheel on the opposite side of the driving wheel 004; the synchronous belt 006 is used to drive the electromagnet 009 to rotate synchronously; and, the electromagnet 009 is provided in plurality, and is arranged in an array along the rotation direction of the synchronous belt 006.

[0035] The driving motor 003 may use a servo motor. Specifically, the driving motor 003 is fixed with bolts; the driving wheel 004 is fixed to the active side fixing plate 001 through the transition plate 007, and is connected with threads; further, the passive wheel 005 is fixed to the passive side fixing plate 002 through the transition plate 007; and the electromagnets 009 are adjacent to each other on the synchronous belt 006.

[0036] Specifically, the synchronous belt 006 is made of insulating material or a non-magnetic chain belt; further, the synchronous belt 006 needs to be made of magnetic isolation material to avoid interfering with the magnetism of the electromagnet 009. At this time, the surface of the synchronous belt 006 is provided with a socket for inserting the electromagnet 009.

[0037] Specifically, the trigger component includes a positive pole and a negative pole; the horizontally placed positive pole and negative pole are symmetrically arranged on the inner and outer sides of the synchronous belt 006.

[0038] Specifically, the positive pole and the negative pole include: positive pole A010 and positive pole B011 symmetrically arranged on the outside of the conveyor along the battery cell 016; the negative pole is divided into negative pole A012 and negative pole B013 symmetrically arranged on the inside of the conveyor along the battery cell 016. The long strip arrangement of the pole can keep the electromagnet 009 stable when it is powered. Among them, the conductive component can also use the arrangement of electrode sheets.

[0039] The collection box wraps the conveyor; the collection box adopts a negative pressure box to absorb the iron filings. Specifically, a collection port for discharging the iron filings is provided on one side of the collection box; the iron filings can be quickly taken out by connecting the collection port with an exhaust fan, which makes it easy to recycle the iron filings.

[0040] Working principle:

[0041] Before the battery cell 016 enters, the driving motor 003 drives the driving wheel 004 to rotate, and drives the electromagnet 009 to move through the synchronous belt 006; wherein, the driven wheel assists the rotation; then, the positive pole of the magnet 017 is connected with the positive pole A010 and the positive pole B011 near the battery cell 016; similarly, the negative pole of the magnet 018 is connected with the negative pole A012 and the negative pole B013 near the battery cell 016; then, the current flowing between the positive pole and the negative pole will pass through the electromagnet 009, causing the electromagnet 009 to generate magnetism, attracting and collecting ferromagnetic impurities.

[0042] After the electromagnet 009 is driven by the synchronous belt 006 to enter the negative pressure box A014 and the negative pressure box B015, the positive and negative poles of the electromagnet 009 are separated from the positive pole and the negative pole respectively, and then lose their magnetism; at this time, the negative pressure generated by the collection port A008 and the collection port B019 brings out the ferromagnetic impurities and then transports them to the factory for recycling.

[0043] A plurality of electromagnets 009 arranged in an array on the synchronous belt 006 are connected in series around the pole piece and perform a circular reciprocating rotation, thereby completing the cyclic cleaning work.

[0044] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A lithium battery circulation impurity removal device, characterized in that: include: A circulating moving device, wherein a cavity is provided inside for the battery cells to pass through; An electromagnet is arranged on the circulating moving device, and driven by the circulating moving device, the electromagnet can move around the battery core; The electromagnet is energized to absorb the iron filings on the battery core; The electromagnet is de-energized to remove the iron filings.

2. The lithium battery circulation impurity removal device according to claim 1, characterized in that: The circulating moving device comprises: an active side fixing plate, a passive side fixing plate, a driving motor and a synchronous belt; The active side fixing plate and the passive side fixing plate are symmetrically arranged outside the two ends of the battery core; a charged rail is arranged between the active side fixing plate and the passive side fixing plate; the charged rail is arranged along the motion track of the cyclic moving device, and is used to conduct current to the electromagnet passing by; The driving motor is arranged on the outside of the active side fixing plate, and is connected to the driving wheel meshed with the inner side of the synchronous belt, so as to drive the synchronous belt to rotate; The synchronous belt is connected to the electromagnet; the synchronous belt is meshed with a driven wheel on the opposite side of the driving wheel; the synchronous belt is used to drive the electromagnet to rotate synchronously.

3. The lithium battery circulation impurity removal device according to claim 2, characterized in that: The electromagnets are provided in plurality and arranged in an array along the rotation direction of the synchronous belt.

4. The lithium battery circulation impurity removal device according to claim 2, characterized in that: The synchronous belt is made of insulating material, and a socket for inserting the electromagnet is arranged on its surface.

5. The lithium battery circulation impurity removal device according to claim 3, characterized in that: The live rails are strip-shaped electric posts, which are symmetrically arranged on the front and rear sides of the battery core.

6. The lithium battery circulation impurity removal device according to claim 5, characterized in that: The electrified rail includes a positive pole and a negative pole; the horizontally placed positive pole and negative pole are symmetrically arranged on the inner and outer sides of the synchronous belt.

7. The lithium battery circulation impurity removal device according to claim 5, characterized in that: Also includes: The bottom of the electrified guide rail is provided with a track for the top end of the electromagnet to slide.

8. The lithium battery circulation impurity removal device according to claim 1, characterized in that: A collection box is arranged at a position of the circulating moving device away from the battery core, and is used to collect iron filings discharged when the electromagnet loses power.

9. The lithium battery circulation impurity removal device according to claim 8, characterized in that: The collection box adopts a negative pressure box to wrap the two ends of the circulating moving device for collecting iron filings.

10. The lithium battery circulation impurity removal device according to claim 9, characterized in that: A collecting port for discharging iron filings is provided on one side of the collecting box.

Images