CN219851137U - Dust removal mechanism - Google Patents

Abstract

The utility model relates to a dust removal mechanism, comprising: the conveying belt is used for conveying the battery cover plate; the upper ion airflow supply device is arranged above the conveying belt and is configured to blow ion airflow downwards to remove static electricity on the upper surface of the battery cover plate, so that the adhesive force of the upper surface of the battery cover plate to dust is reduced; an upper high-pressure air flow supply device provided downstream of the upper ion air flow supply device and configured to blow a high-pressure air flow downward to remove dust on the upper surface of the battery cover plate; a lower ion air flow supply device arranged below the conveyor belt and arranged at the downstream of the upper high-pressure air flow supply device and configured to blow ion air flow upwards to remove static electricity on the lower surface of the battery cover plate, so that the adhesion of the lower surface of the battery cover plate to dust is reduced; and a lower high-pressure air flow supply device configured to blow a high-pressure air flow upward to remove dust from the lower surface of the battery cover plate. The non-contact dust removal of this embodiment does not harm the battery cover plate, has greatly reduced surface dust.

Description

Dust removal mechanism

Technical Field

The utility model relates to the technical field of battery production, in particular to a dust removing mechanism.

Background

Lithium ion batteries have become the first choice for portable electronic products, electric automobiles and energy storage due to the advantages of high capacity density, large specific energy, long cycle life and the like, and are increasingly widely used. The lithium ion battery mainly comprises the following parts: the battery cell is formed by winding a positive plate, a separation film and a negative plate which are sequentially overlapped, a shell sleeved outside the battery cell, a battery cover plate positioned at the top of the shell, and a positive pole post and a negative pole post welded on a battery cover plate mounting hole.

In addition, since a large amount of chemical substances are contained in the lithium ion battery, a large amount of mixed gas is generated in the process of charging and discharging the battery, so that pressure is continuously accumulated in the battery, and if the pressure is not released in time, the battery can explode. In order to prevent explosion of the battery, it is necessary to release the pressure accumulated inside the battery, and the most common measure is to provide a safety protection device on the battery top cover. At present, a common safety protection device is to punch a longitudinal through hole on a battery top cover and then weld a explosion-proof sheet.

However, because the cover plate post and the explosion-proof piece are easy to generate bad phenomena such as pinholes, broken welding, explosion-proof valve damage and the like after being welded, the battery cover plate can not be completely sealed, chemical substances in the lithium ion battery leak from the damaged gap, the rejection rate is very high, and the use requirement can not be met. For this reason, the existing technology can perform tightness detection on the battery cover plate to confirm whether the battery cover plate is completely sealed.

The existing air tightness detection is carried out by forming a sealing environment through the compaction and lamination of the battery cover plate and the sealing ring, and due to a large amount of dust on the surface of the welded battery cover plate, the sealing ring is frequently damaged during detection to cause false detection. Therefore, the existing dust removing equipment mainly adopts a rolling brush for physical dust removal, the dust removing mode is easy to scrape the surface of the battery cover plate, the whole process is complex, the efficiency is low, and the high-efficiency production requirement of the battery cover plate can not be met.

Disclosure of Invention

The present utility model provides a dust removal mechanism to ameliorate at least some of the above problems.

The utility model is specifically as follows: a dust removal mechanism comprising:

the conveying belt is used for conveying the battery cover plate;

the upper ion airflow supply device is arranged above the conveying belt and is configured to blow ion airflow downwards to remove static electricity on the upper surface of the battery cover plate, so that the adhesive force of the upper surface of the battery cover plate to dust is reduced;

an upper high-pressure air flow supply device provided downstream of the upper ion air flow supply device and configured to blow a high-pressure air flow downward to remove dust on the upper surface of the battery cover plate;

a lower ion air flow supply device arranged below the conveyor belt and arranged at the downstream of the upper high-pressure air flow supply device and configured to blow ion air flow upwards to remove static electricity on the lower surface of the battery cover plate, so that the adhesion of the lower surface of the battery cover plate to dust is reduced;

and a lower high-pressure air flow supply device provided downstream of the lower ion air flow supply device and configured to blow a high-pressure air flow upward to remove dust on the lower surface of the battery cover plate.

In an embodiment of the utility model, the device further comprises a lower dust collection module, wherein the lower dust collection module is arranged on one side of the conveying belt, which is away from the upper high-pressure airflow supply device, and the lower dust collection module is connected with a negative pressure device.

In an embodiment of the utility model, the device further comprises an upper dust collection module, wherein the upper dust collection module is arranged on one side of the transmission belt, which is away from the lower high-pressure airflow supply device, and the upper dust collection module is connected with a negative pressure device.

In one embodiment of the present utility model, at least one of the upper ion air flow supply device and the lower ion air flow supply device includes an air jet pipe and an ion generator connected with the air jet pipe through a line, wherein the length direction of the air jet pipe is perpendicular to the conveying direction of the conveying belt, and a plurality of air jet ports are distributed along the length direction on the surface of one side facing the conveying belt.

In one embodiment of the present utility model, at least one of the upper high-pressure air flow supply device and the lower high-pressure air flow supply device has a longitudinal direction perpendicular to a conveying direction of the conveyor belt, and a strip-shaped air injection outlet is provided in the longitudinal direction on a side surface facing the conveyor belt.

In one embodiment of the present utility model, the upper dust collection module and the lower dust collection module are dust collection boxes respectively, and the dust collection boxes are connected to the negative pressure device through pipelines.

In an embodiment of the present utility model, the apparatus further includes a bracket disposed outside two sides of the width direction of the conveyor belt, at least one of the upper ion air flow supply device, the upper high pressure air flow supply device, the lower ion air flow supply device, and the lower high pressure air flow supply device is disposed across the conveyor belt, and both ends of the upper ion air flow supply device, the upper high pressure air flow supply device, the lower ion air flow supply device, and the lower high pressure air flow supply device are respectively fixed to the bracket.

In one embodiment of the present utility model, the support is provided with an arc through slot, and the arc through slot is arranged with a connection point of at least one of the upper ion airflow supply device, the upper high-pressure airflow supply device, the lower ion airflow supply device and the lower high-pressure airflow supply device and the support as a circle center; the end part of the device is provided with a sliding pin which is correspondingly embedded into the arc-shaped through groove and can move along the arc-shaped through groove, so that the device swings and the blowing direction of air flow is adjusted.

In one embodiment of the present utility model, the dust removing mechanism further includes:

a sensor for emitting infrared rays to the surface of the conveyor belt to detect the battery cover plate;

the controller is connected with the sensor and is used for receiving detection signals fed back by the sensor;

and a solenoid valve electrically connected with the controller and configured to control the opening of the upper ion air flow supply device, the upper high-pressure air flow supply device, the lower ion air flow supply device and the lower high-pressure air flow supply device based on a detection signal received by the controller and flowing in by the battery cover plate.

The beneficial effects of the utility model include:

1. the utility model adopts a non-contact type dust removing mode of firstly removing static electricity and then removing dust and finally collecting dust, and the dust removing has no dead angle, thereby greatly reducing the dust on the surface of the battery cover plate.

2. The whole process is simple, the dust removal speed is high, the efficiency is high, the running speed of the product on a belt line can not be reduced due to dust removal, and the continuous production with fast time and rhythm can be always kept, so that the high-efficiency production requirement of the battery cover plate can be met.

3. Because the dust on the surface of the welded battery cover plate is completely removed, the sealing ring is not damaged during the air tightness detection, so that the problems of false detection and over detection are avoided, and the product quality risk is obviously reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered limiting in scope, but can be obtained from these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of a dust removing mechanism according to an embodiment;

FIG. 2 is an isometric schematic view of the upper ion airflow supply device of FIG. 1;

FIG. 3 is an isometric view of the upper high pressure air flow supply device of FIG. 1;

in the figure, 1, a battery cover plate;

731. a transmission belt;

732. a top ion gas flow supply device;

7301. a gas lance; 7301a, gas jet; 7302. a line;

733. upper high pressure air flow supply means; 7303. a strip-shaped air injection outlet;

734. a lower ion gas flow supply device;

735. a lower high pressure air stream supply device;

736. a lower dust collection module;

737. an upper dust collection module;

738. a bracket; 7381. arc through grooves; 7382. a sliding pin; 7383. the connection point.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in use of the product of the application as understood by those skilled in the art, which is merely for convenience of describing the present utility model and simplifying the description, and is not indicative or implying that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, in one embodiment there is provided a dust removal mechanism comprising:

a conveying belt 731 for conveying the battery cover plate 1;

an upper ion air flow supply device 732 disposed above the conveyor belt 731 and configured to blow an ion air flow downward to remove static electricity from the upper surface of the battery cover plate 1, thereby reducing adhesion of the upper surface of the battery cover plate 1 to dust;

an upper high-pressure air flow supply device 733 provided downstream of the upper ion air flow supply device 732 and configured to blow a high-pressure air flow downward to remove dust on the upper surface of the battery cover plate 1;

a lower ion air flow supply device 734 provided below the transport belt 731 and downstream of the upper high-pressure air flow supply device 733, configured to blow an ion air flow upward to remove static electricity from the lower surface of the battery cover plate 1, thereby reducing adhesion of the lower surface of the battery cover plate 1 to dust;

a lower high pressure air flow supply device 735, provided downstream of the lower ion air flow supply device 734, is configured to blow a high pressure air flow upward to remove dust from the lower surface of the battery cover plate 1.

Specifically, as shown in fig. 1, the battery cover plate 1 flows from left to right on the conveying belt 731;

when the battery cover plate 1 flows to the lower part of the upper ion airflow supply device 732, the upper ion airflow supply device 732 blows the ion airflow downwards to remove static electricity on the upper surface of the battery cover plate 1, so that the adhesive force of the upper surface of the battery cover plate 1 to dust is reduced; when the battery cover plate 1 continues to flow below the upper high-pressure airflow supply device 733, the high-pressure airflow blown downwards by the upper high-pressure airflow supply device 733 can remove dust on the upper surface of the battery cover plate 1;

when the battery cover plate 1 continues to flow and reaches the upper part of the lower ion airflow supply device 734, the lower ion airflow supply device 734 blows the ion airflow upwards to remove static electricity on the lower surface of the battery cover plate 1, so that the adhesive force of the lower surface of the battery cover plate 1 to dust is reduced; when the battery cover plate 1 continues to flow above the lower high-pressure airflow supplying device 735, the high-pressure airflow blown upwards by the lower high-pressure airflow supplying device 735 can remove dust on the lower surface of the battery cover plate 1;

after the above steps are completed, the dust removal on the surface of the battery cover plate 1 is substantially completely removed.

The utility model adopts a non-contact type dust removing mode of firstly removing static electricity and then removing dust and finally collecting dust, has no dead angle in dust removal and greatly reduces the dust on the surface of the battery cover plate 1.

The whole process is simple, the dust removal speed is high, the efficiency is high, the running speed of the product on a belt line can not be reduced due to dust removal, and the time and the rhythm can be kept fast and continuous production all the time, so that the high-efficiency production requirement of the battery cover plate 1 can be met.

Because the dust on the surface of the welded battery cover plate 1 is completely removed, the sealing ring is not damaged during the air tightness detection, so that the problems of false detection and over detection are avoided, and the product quality risk is obviously reduced.

As shown in fig. 1, further, the dust collector further comprises a lower dust collection module 736 disposed at a side of the conveying belt 731 facing away from the upper high pressure airflow supply device 733, and the lower dust collection module 736 is connected to a negative pressure device.

Specifically, when the negative pressure device is started, negative pressure can be formed in the lower dust collection module 736, and the dust on the upper surface of the battery cover plate 1 blown off by the upper high-pressure airflow supply device 733 flows to the lower dust collection module 736 under the action of pressure difference, so that the dust can be quickly collected.

In this embodiment, the negative pressure energy formed by the lower dust collection module 736 automatically and rapidly collects the dust blown off by the upper high pressure airflow supply device 733 on the upper surface of the battery cover plate 1, so as to prevent the blown dust from scattering outside to affect the subsequent air tightness detection.

As shown in fig. 1, further, the device further comprises an upper dust collection module 737 disposed on a side of the transmission belt 731 facing away from the lower high pressure airflow supply device 735, and the upper dust collection module 737 is connected to a negative pressure device.

Specifically, when the negative pressure device is started, negative pressure can be formed in the upper dust collection module 737, and the dust on the lower surface of the battery cover plate 1 blown off by the lower high-pressure airflow supply device 735 flows to the upper dust collection module 737 under the action of pressure difference, so that the dust can be quickly collected.

In this embodiment, the negative pressure formed by the upper dust collection module 737 can automatically and rapidly collect the dust blown off from the lower surface of the battery cover plate 1 by the lower high pressure airflow supply device 735, so as to prevent the blown dust from scattering outside and affecting the subsequent air tightness detection.

As shown in fig. 2, further, at least one of the upper ion gas flow supply device 732 and the lower ion gas flow supply device 734 includes a gas jet pipe 7301 and an ion generator (not shown) connected to the gas jet pipe 7301 through a line 7302, wherein a longitudinal direction of the gas jet pipe 7301 is perpendicular to a conveying direction of the conveying belt 731, and a plurality of gas jet ports 7301a are distributed along the longitudinal direction on a side surface facing the conveying belt 731.

Specifically, the ion body generated by the ion generator enters the air jet pipe 7301, and the plurality of air jet ports 7301a distributed along the length direction can blow the ion air flow comprehensively and uniformly to the surface of the battery cover plate 1, so that the comprehensiveness of static electricity removal on the upper surface of the battery cover plate 1 and the consistency of the removal effect are ensured. The plurality of air nozzles 7301a distributed and arranged can promote the uniformity of static electricity removal, prevent dust from being adhered to certain positions with residual static electricity strongly and being difficult to be blown off, and remove static electricity without dead angles.

As shown in fig. 3, at least one of the upper high pressure air flow supply device 733 and the lower high pressure air flow supply device 735 has a longitudinal direction perpendicular to the conveying direction of the conveying belt 731, and a strip-shaped air jet outlet 7303 is provided along the longitudinal direction on a side surface facing the conveying belt 731.

Specifically, the air injection outlet along the length direction can blow high-pressure air flow comprehensively and uniformly to the surface of the battery cover plate 1, so that the comprehensiveness of dust removal on the upper surface of the battery cover plate 1 is ensured, dust attachment at certain positions can be avoided, no dead angle is generated in dust removal, and the dust on the surface of the battery cover plate 1 is completely removed.

As shown in fig. 1, further, the upper dust collection module 737 and the lower dust collection module 736 are respectively dust collection boxes, and the dust collection boxes are connected to the negative pressure device through pipes. The dust box has a simple structure and can have enough space to collect dust.

As shown in fig. 1, the apparatus further comprises a support 738 provided outside both sides of the width direction of the conveyor belt 731, at least one of the upper ion air flow supply device 732, the upper high-pressure air flow supply device 733, the lower ion air flow supply device 734, and the lower high-pressure air flow supply device 735 is provided astride the conveyor belt 731, and both ends thereof are respectively fixed to the support 738.

As shown in fig. 1 and 2, further, the support 738 is provided with an arc-shaped through slot 7381, and the arc-shaped through slot 7381 is disposed around a connection point 7383 between at least one of the upper ion air flow supply device 732, the upper high pressure air flow supply device 733, the lower ion air flow supply device 734, and the lower high pressure air flow supply device 735 and the support 738; the end of the device is provided with a sliding pin 7382, and the sliding pin 7382 is correspondingly embedded into the arc-shaped through groove 7381 and can move along the arc-shaped through groove 7381, so that the device swings and the blowing direction of the air flow is adjusted.

According to the embodiment, each device can be driven to swing as required, so that the blowing direction of air flow can be freely adjusted, and the dust removal efficiency and effect can reach the optimal state. The structural design is ingenious and the installation is convenient.

Further, the dust removing mechanism further comprises:

a sensor for emitting infrared rays to the surface of the transmission belt 731 to detect the battery cover 1;

the controller is connected with the sensor and is used for receiving detection signals fed back by the sensor;

and a solenoid valve electrically connected to the controller and configured to control the opening of the upper ion air flow supply device 732, the upper high pressure air flow supply device 733, the lower ion air flow supply device 734, and the lower high pressure air flow supply device 735 based on a detection signal received by the controller and flowing in from the battery cover 1.

The utility model uses the electromagnetic valve to control the blowing of the ion air flow and the high-pressure air flow by matching with the sensor to remove dust on the battery cover plate 1; when no battery cover plate 1 flows in, the ion airflow and the high-pressure airflow stop blowing, so that unnecessary power loss is reduced.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. A dust removal mechanism, comprising:

the conveying belt is used for conveying the battery cover plate;

the upper ion airflow supply device is arranged above the conveying belt and is configured to blow ion airflow downwards to remove static electricity on the upper surface of the battery cover plate, so that the adhesive force of the upper surface of the battery cover plate to dust is reduced;

an upper high-pressure air flow supply device provided downstream of the upper ion air flow supply device and configured to blow a high-pressure air flow downward to remove dust on the upper surface of the battery cover plate;

a lower ion air flow supply device arranged below the conveyor belt and arranged at the downstream of the upper high-pressure air flow supply device and configured to blow ion air flow upwards to remove static electricity on the lower surface of the battery cover plate, so that the adhesion of the lower surface of the battery cover plate to dust is reduced;

and a lower high-pressure air flow supply device provided downstream of the lower ion air flow supply device and configured to blow a high-pressure air flow upward to remove dust on the lower surface of the battery cover plate.

2. The dust removal mechanism of claim 1, wherein: further comprises:

the lower dust collection module is arranged on one side of the transmission belt, which is away from the upper high-pressure airflow supply device, and is connected with a negative pressure device;

the upper dust collection module is arranged on one side of the transmission belt, which is away from the lower high-pressure airflow supply device, and is connected with another negative pressure device.

3. The dust removal mechanism of claim 1, wherein: the ion gas supply device comprises an ion generator, a conveying belt, an ion gas supply device, a lower ion gas supply device, a gas spraying pipe and a plurality of gas spraying ports, wherein the ion generator is connected with the gas spraying pipe through a line, the length direction of the gas spraying pipe is perpendicular to the conveying direction of the conveying belt, and the plurality of gas spraying ports are distributed on the surface of one side of the conveying belt along the length direction.

4. The dust removal mechanism of claim 1, wherein: at least one of the upper high-pressure air flow supply device and the lower high-pressure air flow supply device is perpendicular to the conveying direction of the conveying belt in the length direction, and a strip-shaped air injection outlet is arranged on the surface of one side facing the conveying belt in the length direction.

5. The dust removal mechanism of claim 2, wherein: the upper dust collecting module and the lower dust collecting module are respectively dust collecting boxes, and the dust collecting boxes are connected to the negative pressure device through pipelines.

6. The dust removal mechanism of claim 1, wherein: the ion current supply device comprises a transmission belt, an upper ion current supply device, a lower ion current supply device and a support, wherein the support is arranged outside two sides of the width direction of the transmission belt, at least one of the upper ion current supply device, the upper high-pressure current supply device, the lower ion current supply device and the lower high-pressure current supply device is arranged across the transmission belt, and two ends of the support are respectively fixed on the support.

7. The dust removal mechanism of claim 6, wherein: the arc-shaped through groove is arranged on the bracket, and the arc-shaped through groove is arranged by taking the connecting point of at least one of the upper ion airflow supply device, the upper high-pressure airflow supply device, the lower ion airflow supply device and the lower high-pressure airflow supply device and the bracket as the circle center; the end part of the device is provided with a sliding pin which is correspondingly embedded into the arc-shaped through groove and can move along the arc-shaped through groove, so that the device swings and the blowing direction of air flow is adjusted.

8. The dust removal mechanism of claim 1, wherein: the dust removing mechanism further comprises:

a sensor for emitting infrared rays to the surface of the conveyor belt to detect the battery cover plate;

the controller is connected with the sensor and is used for receiving detection signals fed back by the sensor;

and a solenoid valve electrically connected with the controller and configured to control the opening of the upper ion air flow supply device, the upper high-pressure air flow supply device, the lower ion air flow supply device and the lower high-pressure air flow supply device based on a detection signal received by the controller and flowing in by the battery cover plate.