Material suction device and battery production system

Abstract

The utility model discloses a material suction device and a battery production system. The material suction device comprises a material suction pipe and a dust removal pipe, wherein one end of the material sucking pipe is provided with a material sucking opening and an air supplementing hole, and the material sucking opening and the air supplementing hole are both communicated with the inner side space of the material sucking pipe; one end of the dust removal pipe is communicated with the air supplementing hole, and the other end of the dust removal pipe is provided with a dust suction port. According to the technical scheme, synchronous dust removal is achieved while the material suction device sucks materials, a dust removal device does not need to be additionally arranged, and the occupied area is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of powder vacuum conveying, in particular to a material suction device and a battery production system. Background Art

[0002] When a suction device in the related art sucks powder, it is usually necessary to configure a dust removal device to remove dust to prevent the powder from entering the environment and polluting the air. However, configuring an additional dust removal device will result in the need for a large floor space. Utility Model Content

[0003] The main purpose of the utility model is to provide a material suction device, which is intended to achieve synchronous dust removal while sucking materials, so as to reduce the floor space without the need for additional dust removal devices.

[0004] In order to achieve the above-mentioned purpose, the suction device proposed by the present invention includes:

[0005] A suction pipe, one end of which is provided with a suction port and an air supply hole, wherein the suction port and the air supply hole are both connected to the inner space of the suction pipe; and

[0006] A dust removal pipe, one end of which is connected to the air supply hole, and the other end of which is provided with a dust suction port.

[0007] When the suction device of the technical solution of the present invention is in use, since the air supply hole and the dust removal pipe are connected, the external air can enter the suction pipe through the dust suction port, the dust removal pipe and the air supply hole, and the suction port provided near the air supply hole can form an airflow that continuously flows toward the end of the suction pipe away from the suction port, so as to drive the powder to be sucked into the suction pipe from the suction port to complete the suction function. At the same time, when the powder floats up from the opening of the powder carrier such as the packaging or container for accommodating the powder, it can also follow the external air to enter the dust removal pipe from the dust suction port to avoid directly entering the environment. Therefore, the structural setting of the suction device in this solution realizes synchronous dust removal while sucking the material by using "air supply" and "dust removal" simultaneously, so as to reduce the floor space without the need for additional dust removal device.

[0008] Optionally, the suction device further comprises an enclosure, which is arranged on the outside of the suction pipe and encloses the suction pipe to form a communicating cavity;

[0009] The material suction port and the communication cavity are isolated, and the air supply hole is connected to the communication cavity;

[0010] The enclosure is provided with a communication hole connected to the communication cavity, and one end of the dust removal pipe away from the dust suction port is connected to the communication hole.

[0011] In this way, the position of the dust removal pipe can be set more flexibly. At the same time, the enclosure can also be used to enclose and isolate the air supply hole, reducing the possibility of air being blocked by powder.

[0012] Optionally, the communicating cavity is arranged around the circumference of the suction pipe, and the number of the air-supply holes is multiple, and the multiple air-supply holes are arranged in sequence along the circumference of the suction pipe.

[0013] Thus, one dust removal pipe can be connected to multiple air supply holes, thereby improving the air supply efficiency while simplifying the number of dust removal pipes.

[0014] Optionally, in the extension direction of the suction pipe, the projected area of ​​the inner space of the suction pipe is defined as S1, and the sum of the areas of the plurality of air supply holes is defined as S2, satisfying the relationship: S2 ≥ S1;

[0015] And / or, in the extension direction of the suction pipe, the projected area of ​​the inner space of the suction pipe is defined as S1, and the projected area of ​​the communicating cavity is defined as S3, satisfying the relationship: S3 ≥ S1.

[0016] Thereby, the stability of the gas flow can be improved, so that the gas pressure will not decrease after entering the suction pipe, so that the suction pipe can effectively and stably absorb the powder.

[0017] Optionally, the suction port is provided on the end surface of the suction pipe, the air supply hole is provided on the side circumference of the suction pipe, and the enclosure and the side circumference of the suction pipe are enclosed to form the communicating cavity.

[0018] As a result, the suction port can be located at the lowest point of the suction pipe, thereby facilitating sufficient suction of the powder located on the bottom of the powder carrier and reducing the possibility of the powder being retained in the powder carrier.

[0019] Optionally, the enclosure comprises:

[0020] a main body tube, both ends of which are opened and surround the side surface of the suction pipe at intervals, and the communicating hole is provided in the main body tube; and

[0021] Two end cover rings are respectively covered on the openings at both ends of the main body tube and sleeved on the suction pipe.

[0022] Thus, the shape of the enclosure can be made more regular, thereby improving the convenience of its manufacture. At the same time, the shape of the connecting cavity formed by the enclosure can also be made more regular, thereby improving the stability of gas flow.

[0023] Optionally, in the extension direction of the main body tube, the main body tube includes a first tube section and a second tube section arranged in sequence, the communicating hole is provided in the first tube section; the second tube section is provided adjacent to the suction port relative to the first tube section, and is detachably connected to the first tube section;

[0024] And / or, the end cover ring provided adjacent to the suction port and the end surface of the suction pipe provided with the suction port are flush;

[0025] And / or, a chamfer is provided at the connection between the main body tube and the end cover ring arranged adjacent to the suction port;

[0026] And / or, one end of the suction pipe is opened to form the suction port;

[0027] And / or, one end of the suction pipe away from the suction port protrudes from the corresponding end cover ring.

[0028] Thus, the second barrel section can be disassembled and removed so as to clean the suction tube and the enclosure.

[0029] Optionally, the communication hole is provided at an end of the enclosure away from the suction port;

[0030] and / or, in the extension direction of the suction pipe, the projection of the suction pipe is circular;

[0031] And / or, in the extension direction of the enclosure, the projection of the enclosure is circular.

[0032] Thus, the possibility of interference between the end of the dust removal pipe connected to the material suction port and the powder carrier containing the powder can be reduced.

[0033] Optionally, the dust removal pipe includes at least two main pipes and at least one hose, and the hose is provided between two adjacent main pipes;

[0034] One of the two main body tubes located at both ends is communicated with the air supply hole, and the other one is provided with the dust suction port.

[0035] Thus, the position of the dust suction port can be adjusted conveniently so as to be closer to the opening of the powder carrier and conveniently absorb the powder floating out of the opening of the powder carrier.

[0036] Optionally, in the extension direction of the suction pipe, the projected area of ​​the inner space of the suction pipe is defined as S1;

[0037] In the extension direction of the main body tube, the projected area of ​​the inner space of the main body tube is defined as S4, which satisfies the relationship: S4 ≥ S1.

[0038] Thereby, the stability of the gas flow can be improved so that the suction pipe can absorb the material effectively and stably.

[0039] Optionally, the suction device further comprises a diffusion cover, wherein an end of the diffusion cover having a smaller cross-sectional area is connected to the dust suction port;

[0040] And / or, the suction device further comprises a fan, and the fan is connected to one end of the suction pipe;

[0041] And / or, the suction device further includes a driving mechanism, which is connected to the suction pipe and configured to drive the suction pipe to move.

[0042] In this way, the powder floating out from the opening of the powder carrier can be guided, thereby improving the absorption effect of the powder.

[0043] The utility model also provides a battery production system, comprising the above-mentioned material suction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0045] Figure 1 This is a schematic diagram of the use state of an embodiment of the suction device of the utility model;

[0046] Figure 2 for Figure 1 Schematic diagram of the structure of the middle suction device;

[0047] Figure 3 for Figure 2 A schematic diagram of a partial structure of the middle suction device;

[0048] Figure 4 for Figure 2 Top view of the suction pipe of the medium suction device.

[0049] Description of Figure Numbers:

[0050] Label name Label name 100 Suction device 31 Connecting cavity 10 Suction tube 33 connecting hole 11 Suction port 35 Main body tube 13 Air holes 351 First barrel section 20 Dust removal pipe 353 Second barrel section 21 Main pipe 37 End cap ring 211 Vacuum port 50 Expand masks 23 hose 300 Powder carrier 30 Enclosure

[0051] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0053] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or a solution in which both A and B are satisfied. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0056] A battery typically includes multiple cells, each of which consists of a housing, an electrode assembly within the housing, and an electrolyte. The electrode assembly further includes a positive electrode sheet, a negative electrode sheet, and a separator between the positive and negative electrode sheets. The preparation of the positive and negative electrode sheets requires mixing a powdered active material with a solvent to form a slurry, which is then applied to a current collector.

[0057] In the related art, in order to facilitate the removal and loading of powdered active materials contained in powder carriers such as packaging or containers, the active materials are usually sucked and loaded through a suction device. However, during actual use, the active materials may float out from the openings of powder carriers such as packaging or containers. Therefore, in order to prevent the powder from entering the environment and polluting the air, an additional dust removal device is usually required on one side of the suction device for dust removal. However, the additional dust removal device usually includes a central dust collector, a high-efficiency filter, and a dust removal fan, etc. The large number of structures makes the dust removal device larger in size, which in turn leads to the need to occupy a larger floor area and increase investment costs.

[0058] Therefore, based on the above considerations, in order to save the installation of an additional dust removal device and reduce the floor space and investment costs, the present application proposes a new type of suction device. This new type of suction device innovatively provides a dust removal pipe connected to the air supply hole of the suction pipe, so that the suction pipe can not only suck material through the air supply hole, but also complete the suction of the powder floating out, thus eliminating the need for an additional dust removal device with a more complex structure and larger volume.

[0059] In addition, it should be noted that the suction device proposed in this application can not only be used to suck and load the active materials in the battery field introduced above, but can also be used to suck and load other materials, such as flour, etc. As long as the material is in powder form, the suction device proposed in this application can be used.

[0060] Next, the structure of the suction device proposed in this application is explained and described:

[0061] Please refer to Figure 1 and Figure 2 In one embodiment of the present application, the suction device 100 includes a suction pipe 10 and a dust removal pipe 20. One end of the suction pipe 10 is provided with a suction port 11 and an air supply hole 13. The suction port 11 and the air supply hole 13 are both connected to the inner space of the suction pipe 10; one end of the dust removal pipe 20 is connected to the air supply hole 13, and the other end is provided with a dust suction port 211.

[0062] The suction pipe 10 can form a passage for gas and powder through its inner space, and at one end, a suction port 11 and an air supply hole 13 are formed, which is connected to the dust removal pipe 20 through the air supply hole 13; the other end of the suction pipe 10 can be used to connect to the fan. In actual use, for ease of arrangement, with the ground as a reference, the suction pipe 10 can be extended in the vertical direction at least in the portion near the suction port 11, and the suction port 11 and the air supply hole 13 are provided at the lower end. Then, when it is necessary to suck the powder, the lower end of the suction pipe 10 can be inserted into a powder carrier 300 such as a package or container for accommodating the powder, and the dust removal pipe 20 is located above the opening of the powder carrier 300 such as the package or container. In addition, in the extension direction of the suction pipe 10, the projection of the suction pipe 10 can be circular, of course, it can also be square or rectangular, etc. This application does not limit the shape of the suction pipe 10. The shape of the interior space of the suction tube 10 can be compatible with the outer shape of the suction tube 10, for example, both can be circular, but they can also be configured differently. Furthermore, the suction tube 10 can be entirely rigid; however, portions of the suction tube 10 can also be flexible, allowing for bending. Furthermore, the suction port 11 can be located on the end surfaces (i.e., two surfaces facing each other along the centerline) of the suction tube 10, for example, on the lower end. In this case, the suction tube 10 can be open at this end to form the suction port 11. Of course, the area of ​​the suction port 11 can also be smaller than the projected area of ​​the interior space of the suction tube 10 in the direction of its extension. Alternatively, the suction port 11 can be located on the lateral surface of the suction tube 10. Similarly, the air supply hole 13 can be located on the end surface of the suction tube 10 or on the lateral surface of the suction tube 10. Furthermore, the number of air supply holes 13 can be one, or two or more. In addition, the shapes of the suction port 11 and the air supply hole 13 can be any shape such as circular, square or rectangular.

[0063] The dust removal pipe 20 can be used to connect to the air supply hole 13, and when one end of the suction pipe 10 having the suction port 11 is inserted into the powder, the dust removal pipe 20 can be provided with at least one end of the dust suction port 211 located above the opening of the powder carrier 300 such as the packaging or container for accommodating the powder, so that the suction pipe 10 can be continuously replenished with gas from the outside through the dust suction port 211. In the extension direction of the dust removal pipe 20, the projection of the dust removal pipe 20 can be circular, and of course it can also be square or rectangular, etc. The present application does not limit the shape of the dust removal pipe 20. The shape of the inner space of the dust removal pipe 20 can be compatible with the outer shape of the dust removal pipe 20, for example: both are circular, and of course they can also be set to be different. In addition, the dust removal pipe 20 can be a hard pipe as a whole; of course, part of the dust removal pipe 20 can also be set as a flexible pipe so that the part can be bent and arranged. In addition, the dust removal pipe 20 and the air supply hole 13 can be directly connected, or they can be indirectly connected through the connecting hole 33 and the connecting cavity 31 as described below. In addition, the dust suction port 211 on the dust removal pipe 20 can be any shape, such as circular, square, or rectangular; and the number of dust suction ports 211 can also be one, two, or more. In addition, the dust suction port 211 can be set on the end face of the dust removal pipe 20. In this case, the dust removal pipe 20 can be set with an opening at this end to form the dust suction port 211. Of course, in the extension direction of the dust removal pipe 20, the area of ​​the dust suction port 211 can also be smaller than the projected area of ​​the inner space of the dust removal pipe 20. Alternatively, the dust suction port 211 can also be set on the side circumferential surface of the dust removal pipe 20. In addition, the number of dust removal pipes 20 can be one. Of course, when the number of air supply holes 13 is set to two or more, the number of dust removal pipes 20 can also be set to two or more, so as to form an arrangement in which one dust removal pipe 20 is connected to one air supply hole 13.

[0064] When the suction device 100 of the technical solution of the present application is in use, since the air supply hole 13 and the dust removal pipe 20 are connected, the external air can enter the suction pipe 10 through the dust suction port 211, the dust removal pipe 20 and the air supply hole 13, and the suction port 11 set near the air supply hole 13 can form an air flow that continuously flows toward the end of the suction pipe 10 away from the suction port 11, so as to drive the powder to be sucked into the suction pipe 10 from the suction port to complete the suction function. The specific air flow path is as follows: Figure 2As shown by the dotted arrow in the middle. At the same time, when the powder floats up from the opening of the powder carrier 300, such as the packaging or container for accommodating the powder, it can also follow the external air into the dust removal pipe 20 through the dust suction port 211, avoiding direct entry into the environment. Therefore, the structural setting of the suction device 100 in this solution, by simultaneously using "air replenishment" for "dust removal", enables simultaneous dust removal while sucking the material, thereby reducing the floor space without the need for additional dust removal devices. At the same time, by absorbing the powder that floats up from the opening of the powder carrier 300, this part of the powder can also be recovered, which is conducive to improving the utilization rate of the powder.

[0065] Please refer to Figure 2 In one embodiment of the present application, the suction device 100 also includes an enclosure 30, which is arranged on the outside of the suction pipe 10 and is enclosed with the suction pipe 10 to form a connecting cavity 31; the suction port 11 and the connecting cavity 31 are isolated, and the air supply hole 13 is connected to the connecting cavity 31; the enclosure 30 is provided with a connecting hole 33 connected to the connecting cavity 31, and the end of the dust removal pipe 20 away from the dust suction port 211 is connected to the connecting hole 33.

[0066] The enclosure 30 can be completely arranged on the side circumference of the suction pipe 10; of course, it can also be partially arranged on the side circumference of the suction pipe 10 and partially arranged on the end surface of the suction pipe 10 at one end where the suction port 11 is provided, to ensure that the enclosure 30 and the portion of the suction pipe 10 where no suction port 11 is provided are enclosed to form a connecting cavity 31, so that the connecting cavity 31 and the suction port 11 are isolated. Wherein, when the air supply hole 13 is the side circumference of the suction pipe 10 as described above, the enclosure 30 can be a cylindrical structure including a main body tube 35 and two end cover rings 37 as described below, or it can be a cover structure including an arc-shaped plate and end plates at both ends in the axial direction of the arc-shaped plate, or a cover structure including a flat plate and side plates arranged around the edge of the flat plate. When the air supply hole 13 is provided on the end face of the suction pipe 10 as described above, the enclosure 30 may include a main body tube 35, an end cover ring 37 covering the upper end of the main body tube 35, and an end cover shell covering the lower end of the main body tube 35. The end cover shell may include a horizontal ring and a vertical ring. The outer side of the horizontal ring is connected to the lower end of the main body tube 35. One end of the vertical ring is connected to the inner side of the horizontal ring, and the other end is connected to the end face of the suction pipe 10. Alternatively, the enclosure 30 may include a bottom ring, an inner ring, and an outer ring. The bottom ring may be opposite to the end face of the suction pipe 10. One end of the inner ring is connected to the inner side of the bottom ring, and the other end is connected to the end face of the suction pipe 10. One end of the outer ring is connected to the outer side of the bottom ring, and the other end is connected to the end face of the suction pipe 10. As can be seen, the present application does not limit the shape of the enclosure 30. Therefore, the shape of the communicating cavity 31 formed by the enclosure 30 and the suction tube 10 is also not limited. It can be ring-shaped, or of course, arc-shaped. Furthermore, the outer ring and the suction tube 10 can be an integral structure, or they can be separate structures, and then assembled and fixed by any connection method such as screw connection, welding connection, adhesive connection, or clamping.

[0067] In this embodiment, the enclosure 30 and the suction pipe 10 are provided to cooperate to form a connecting cavity 31, so that the dust removal pipe 20 and the air supply hole 13 can be indirectly connected through the connecting hole 33 and the connecting cavity 31. At this time, the position of the dust removal pipe 20 can be set more flexibly, so that when the suction pipe 10 is inserted into the powder, the dust removal pipe 20 can be conveniently located on the outside of the powder carrier 300 such as the packaging or container for accommodating the powder, thereby reducing the possibility of interference between the dust removal pipe 20 and the powder carrier 300 and affecting the suction work of the suction pipe 10. At the same time, the enclosure 30 can also play an enclosing and isolating role on the air supply hole 13, reducing the possibility of air being blocked by powder, thereby facilitating the smoothness of air supply to the air supply hole 13, thereby improving the smoothness of the suction device 100 in sucking and loading the powder. In addition, when indirect communication is achieved through the connecting hole 33 and the connecting cavity 31, a structural basis can also be provided to achieve the connection between a dust removal pipe 20 and multiple air supply holes 13.

[0068] Please refer to Figures 2 to 4 In one embodiment of the present application, the connecting cavity 31 is arranged around the circumference of the suction pipe 10 , and the number of the air-supply holes 13 is multiple, and the multiple air-supply holes 13 are arranged in sequence along the circumference of the suction pipe 10 .

[0069] In this embodiment, the communicating cavity 31 is configured in an annular shape, so that multiple air supply holes 13 can be sequentially provided along the circumference of the suction pipe 10. This allows a single dust removal pipe 20 to communicate with multiple air supply holes 13, thereby improving air supply efficiency while simplifying the number of dust removal pipes 20. Furthermore, the multiple air supply holes 13 are provided along the circumference of the suction pipe 10, allowing for uniform air supply along the circumference of the suction pipe 10, thereby ensuring uniform and stable suction at all locations of the suction port 11.

[0070] In one embodiment of the present application, in the extension direction of the suction pipe 10 , the projected area of ​​the inner space of the suction pipe 10 is defined as S1 , and the sum of the areas of the plurality of air supply holes 13 is S2 , satisfying the relationship: S2 ≥ S1 .

[0071] In this embodiment, the total area S2 of the multiple air supply holes 13 is set to be greater than or equal to the projected area S1 of the inner space of the suction tube 10, so that the air pressure will not decrease after entering the suction tube 10, so that the suction tube 10 can effectively and stably absorb the powder.

[0072] To further improve the stability of gas pressure, in one embodiment of the present application, the projected area of ​​the inner space of the suction tube 10, as measured in the direction of its extension, is defined as S1, and the projected area of ​​the communication cavity 31 is defined as S3, satisfying the relationship: S3 ≥ S1. In another embodiment of the present application, the projected area of ​​the inner space of the main tube 21, as measured in the direction of its extension, is defined as S4, satisfying the relationship: S4 ≥ S1.

[0073] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, the suction port 11 is arranged on the end face of the suction pipe 10, the air supply hole 13 is arranged on the side surface of the suction pipe 10, and the enclosure 30 and the side surface of the suction pipe 10 are arranged to form a connecting cavity 31.

[0074] In this embodiment, the suction port 11 and the air supply hole 13 are respectively arranged on the end face and the side surface of the suction tube 10, so that after the suction tube 10 is inserted into the powder bag, the suction port 11 can be located at the lowest point of the suction tube 10 and face downward, thereby facilitating the full absorption of the powder located at the bottom of the powder carrier 300 and reducing the possibility of powder being retained in the powder carrier 300.

[0075] Please refer to Figure 2 and Figure 3In one embodiment of the present application, the enclosure 30 includes a main body tube 35 and two end cover rings 37. The two ends of the main body tube 35 are open and spaced around the side surface of the suction pipe 10. The connecting hole 33 is provided in the main body tube 35; the two end cover rings 37 respectively cover the openings at both ends of the main body tube 35 and are sleeved on the suction pipe 10.

[0076] In this embodiment, the enclosure 30 is configured to include a main body tube 35 and two end cover rings 37. On the one hand, the shape of the enclosure 30 can be relatively regular, thereby facilitating the improvement of its manufacturing convenience. On the other hand, the shape of the connecting cavity 31 formed by the enclosure can also be relatively regular, so as to improve the stability of the gas flow. Among them, the main body tube 35 can be a constant diameter tube structure, and the end cover ring 37 and the main body tube 35 can be an integral structure, or of course a split structure, and then connected and assembled by any connection method such as snap connection, screw connection, welding connection or adhesive connection.

[0077] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, in the extension direction of the main barrel 35, the main barrel 35 includes a first barrel section 351 and a second barrel section 353 arranged in sequence, and the connecting hole 33 is provided in the first barrel section 351; the second barrel section 353 is arranged adjacent to the suction port 11 compared to the first barrel section 351, and is detachably connected to the first barrel section 351.

[0078] In this embodiment, the main barrel 35 is configured to include a detachable first barrel section 351 and a second barrel section 353 , so that the second barrel section 353 can be disassembled and removed to clean the suction tube 10 and the enclosure 30 .

[0079] In one embodiment of the present application, the second barrel section 353 and the first barrel section 351 can be configured to be threadedly connected to simplify the disassembly and assembly of the two and improve disassembly and assembly efficiency. Of course, in other embodiments, the second barrel section 353 and the first barrel section 351 can also be connected by a snap connection or a magnetic connection.

[0080] In one embodiment of the present application, the extension length of the second barrel section 353 may be smaller than the extension length of the first barrel section 351 , so as to further improve the convenience of disassembling and removing the second barrel section 353 .

[0081] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, the end cover ring 37 provided adjacent to the suction port 11 is flush with the end surface of the suction pipe 10 provided with the suction port 11 .

[0082] In this embodiment, the lower surface of the lower end cap ring 37 is flush with the lower end surface of the suction pipe 10. This not only makes the structure more regular, thereby improving manufacturing convenience, but also prevents the lower end cap ring 37 from obstructing the suction of the suction port 11. Of course, in other embodiments, the end of the suction pipe 10 provided with the suction port 11 may also protrude from the end cap ring 37.

[0083] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, a chamfer is provided at the connection between the main body tube 35 and the end cover ring 37 provided adjacent to the suction port 11 .

[0084] In this embodiment, by chamfering or rounding the connection between the main tube 35 and the end cover ring 37 below, it is convenient to insert the suction tube 10 and the enclosure 30 provided on the suction tube 10 into the powder.

[0085] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, one end of the suction pipe 10 is opened to form a suction port 11 .

[0086] In this embodiment, the lower end of the suction pipe 10 is opened, so that the suction port 11 has a larger area, thereby improving the suction efficiency. At the same time, the structure of the suction pipe 10 can be simplified, thereby improving the convenience of its manufacture.

[0087] Please refer to Figure 2 In one embodiment of the present application, a corresponding end cover ring 37 protrudes from one end of the suction pipe 10 away from the suction port 11 .

[0088] In this embodiment, the upper end of the suction pipe 10 is extended from the upper end cover ring 37 to facilitate the connection between the suction pipe 10 and a downstream object, such as a fan.

[0089] Please refer to Figure 2 In one embodiment of the present application, the communicating hole 33 is provided at an end of the enclosure 30 away from the suction port 11 .

[0090] In this embodiment, the connecting hole 33 is arranged at the end of the enclosure 30 away from the suction port 11, or in other words, it is arranged at the upper end of the enclosure 30, so that the end of the dust removal pipe 20 connected to the connecting hole 33 can be correspondingly arranged at the upper end of the enclosure 30, and then when the suction pipe 10 and the enclosure 30 arranged on the suction pipe 10 are inserted into the powder, it is beneficial to reduce the possibility of interference between the end of the dust removal pipe 20 connected to the suction port 11 and the powder carrier 300 that contains the powder.

[0091] Please refer to Figure 4In one embodiment of the present application, in the extension direction of the suction pipe 10 , the projection of the suction pipe 10 is circular.

[0092] In this embodiment, the suction pipe 10 is configured to be circular, which can make its shape more regular, thereby facilitating its manufacturing convenience. At the same time, it is also beneficial to reduce the volume of the suction pipe 10 and reduce the space occupied.

[0093] Please refer to Figure 4 In one embodiment of the present application, in the extension direction of the enclosure 30, the projection of the enclosure 30 is circular.

[0094] In this embodiment, the enclosure 30 is configured to be circular, which can make its shape more regular, thereby facilitating its manufacturing convenience and also helping to reduce the volume of the suction tube 10 and reduce the space occupied.

[0095] Please refer to Figure 2 In one embodiment of the present application, the dust removal pipe 20 includes at least two main pipes 21 and at least one hose 23, and the hose 23 is arranged between two adjacent main pipes 21; one of the two main pipes 21 located at both ends is connected to the air supply hole 13, and the other one is provided with a dust suction port 211.

[0096] In this embodiment, the dust removal tube 20 includes a main tube 21 and a hose 23. The main tube 21 can be a hard tube, and the hose 23 is the flexible tube introduced above, so that the dust removal tube 20 can be bent at the hose 23 to adjust the position of the dust suction port 211 so that it is closer to the opening of the powder carrier 300 and convenient for sucking the powder floating out of the opening of the powder carrier 300.

[0097] In one embodiment of the present application, the dust suction port 211 can be set corresponding to the middle position of the enclosure 30, so that after the suction tube 10 and the enclosure 30 set on the suction tube 10 are inserted into the powder, the dust suction port 211 can be closer to the opening of the powder carrier 300, thereby improving the absorption effect of the powder floating out from the opening of the powder carrier 300.

[0098] Please refer to Figure 2 In one embodiment of the present application, the suction device 100 further includes a diffusion cover 50 , and an end of the diffusion cover 50 with a smaller cross-sectional area is connected to the dust suction port 211 .

[0099] The expansion cover 50 , that is, the cross-sectional area of ​​the expansion cover 50 is reduced in the direction in which the dust removal pipe 20 approaches the expansion cover 50 , so as to form a cone shape.

[0100] In this embodiment, a diffusion cover 50 is provided at the dust suction port 211 to guide the powder floating out of the opening of the powder carrier 300 , thereby improving the suction effect.

[0101] In one embodiment of the present application, the suction device 100 further includes a driving mechanism, which is connected to the suction pipe 10 and is configured to drive the suction pipe 10 to move.

[0102] The drive mechanism can be used to provide driving force to drive the suction tube 10 to move. The drive mechanism can include a cylinder or a linear module, and the present application does not limit the structure of the drive mechanism. In addition, the drive mechanism can drive the suction tube 10 to move in a single direction or in at least two directions.

[0103] In this embodiment, a driving mechanism is provided to move the suction pipe 10, so that after the suction pipe 10 has finished sucking the powder at a certain location, the driving mechanism can drive the suction pipe 10 to move to other locations for suction, thereby helping to improve the suction efficiency and ease of use of the suction device 100.

[0104] Please refer to Figures 1 to 4In one embodiment of the present application, the suction device 100 includes a suction pipe 10 and a dust removal pipe 20; one end of the suction pipe 10 is provided with a suction port 11 and an air-filling hole 13, and the suction port 11 and the air-filling hole 13 are both connected to the inner space of the suction pipe 10; one end of the dust removal pipe 20 is connected to the air-filling hole 13, and the other end is provided with a dust suction port 211; the suction device 100 also includes an enclosure 30, which is provided on the outside of the suction pipe 10 and is enclosed with the suction pipe 10 to form a connecting cavity 31; the suction port 11 and the connecting cavity 31 are isolated, and the air-filling hole 13 is connected to the connecting cavity 31; the enclosure 30 is provided with a connecting hole 33 connected to the connecting cavity 31, and the end of the dust removal pipe 20 away from the dust suction port 211 is connected to the connecting hole 33; the connecting cavity 31 is connected to the outer wall of the suction pipe 10 The suction pipe 10 is arranged in a circumferential direction, and the number of the air-supply holes 13 is multiple, and the multiple air-supply holes 13 are arranged in sequence along the circumference of the suction pipe 10; in the extension direction of the suction pipe 10, the projected area of ​​the inner space of the suction pipe 10 is defined as S1, and the sum of the areas of the multiple air-supply holes 13 is S2, satisfying the relationship: S2 ≥ S1; in the extension direction of the suction pipe 10, the projected area of ​​the inner space of the suction pipe 10 is defined as S1, and the projected area of ​​the connecting cavity 31 is S3, satisfying the relationship: S3 ≥ S1; the suction port 11 is provided on the end face of the suction pipe 10, the air-supply holes 13 are provided on the side circumference of the suction pipe 10, and the enclosure 30 and the side circumference of the suction pipe 10 are enclosed to form a connecting cavity 31; the enclosure 30 includes a main body tube 35 and two end covers Ring 37, both ends of the main tube 35 are open and spaced around the side surface of the suction pipe 10, and the communicating hole 33 is provided in the main tube 35; the two end cover rings 37 respectively cover the openings at both ends of the main tube 35 and are sleeved on the suction pipe 10; in the extension direction of the main tube 35, the main tube 35 includes a first tube section 351 and a second tube section 353 arranged in sequence, and the communicating hole 33 is provided in the first tube section 351; the second tube section 353 is arranged adjacent to the suction port 11 compared to the first tube section 351, and is detachably connected to the first tube section 351; the end cover ring 37 arranged adjacent to the suction port 11 is flush with the end surface of the suction pipe 10 provided with the suction port 11; the connection between the main tube 35 and the end cover ring 37 arranged adjacent to the suction port 11 is provided with a chamfer; One end of the suction pipe 10 is open to form a suction port 11; the end of the suction pipe 10 away from the suction port 11 protrudes a corresponding end cover ring 37; the connecting hole 33 is provided at the end of the enclosure 30 away from the suction port 11; in the extension direction of the suction pipe 10, the projection of the suction pipe 10 is circular; in the extension direction of the enclosure 30, the projection of the enclosure 30 is circular; the dust removal pipe 20 includes at least two main pipes 21 and at least one hose 23, and the hose 23 is provided between two adjacent main pipes 21; one of the two main pipes 21 at both ends is connected to the air supply hole 13, and the other one is provided with a dust suction port 211; in the extension direction of the suction pipe 10, the projected area of ​​the inner space of the suction pipe 10 is defined as S1;The projected area of ​​the inner space of the main tube 21 in the extension direction of the main tube 21 is defined as S4, satisfying the relationship: S4 ≥ S1. The suction device 100 also includes a diffuser cover 50, the end of which with a smaller cross-sectional area is connected to the dust suction port 211. The suction device 100 also includes a fan connected to one end of the suction tube 10. The suction device 100 also includes a drive mechanism connected to the suction tube 10 and configured to drive the suction tube 10 to move.

[0105] The present application also proposes a battery production system, which includes a suction device 100. The specific structure of the suction device 100 refers to the above-mentioned embodiment. Since the present battery production system adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be repeated here. Among them, the battery production system can also include an auxiliary material bin, a metering tank, a conveying device and a stirring device. The end of the suction pipe 10 away from the suction port 11 can also be connected to the auxiliary material bin so as to suck the powder into the auxiliary material bin. The metering tank can be connected to the auxiliary material bin to measure the amount of powder falling in. The conveying device can be connected to the metering tank so that the powder falling from the metering tank can be conveyed to the stirring device through the conveying device.

[0106] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application description and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A suction device, characterized in that: include: A suction pipe, one end of which is provided with a suction port and an air supply hole, wherein the suction port and the air supply hole are both connected to the inner space of the suction pipe; and A dust removal pipe, one end of which is connected to the air supply hole, and the other end of which is provided with a dust suction port.

2. The suction device according to claim 1, characterized in that: The material suction device further includes an enclosure, which is arranged on the outside of the material suction pipe and is enclosed with the material suction pipe to form a communicating cavity; The material suction port and the communication cavity are isolated, and the air supply hole is connected to the communication cavity; The enclosure is provided with a communication hole connected to the communication cavity, and one end of the dust removal pipe away from the dust suction port is connected to the communication hole.

3. The suction device according to claim 2, characterized in that: The communicating cavity is arranged around the circumference of the suction pipe, and the number of the air-supply holes is multiple, and the multiple air-supply holes are arranged in sequence along the circumference of the suction pipe.

4. The material suction device according to claim 3, characterized in that: In the extension direction of the suction pipe, the projected area of ​​the inner space of the suction pipe is defined as S1, and the sum of the areas of the plurality of air supply holes is defined as S2, satisfying the relationship: S2 ≥ S1; And / or, in the extension direction of the suction pipe, the projected area of ​​the inner space of the suction pipe is defined as S1, and the projected area of ​​the communicating cavity is defined as S3, satisfying the relationship: S3 ≥ S1.

5. The material suction device according to claim 3, characterized in that: The suction port is arranged on the end surface of the suction pipe, the air supply hole is arranged on the side circumference of the suction pipe, and the enclosure and the side circumference of the suction pipe are enclosed to form the communicating cavity.

6. The material suction device according to claim 5, characterized in that: The enclosure comprises: a main body tube, both ends of which are opened and surround the side surface of the suction pipe at intervals, and the communicating hole is provided in the main body tube; and Two end cover rings are respectively covered on the openings at both ends of the main body tube and sleeved on the suction pipe.

7. The material suction device according to claim 6, characterized in that: In the extension direction of the main body tube, the main body tube includes a first tube section and a second tube section arranged in sequence, the communicating hole is provided in the first tube section; the second tube section is provided adjacent to the suction port compared to the first tube section and is detachably connected to the first tube section; And / or, the end cover ring provided adjacent to the suction port and the end surface of the suction pipe provided with the suction port are flush; And / or, a chamfer is provided at the connection between the main body tube and the end cover ring arranged adjacent to the suction port; And / or, one end of the suction pipe is opened to form the suction port; And / or, one end of the suction pipe away from the suction port protrudes from the corresponding end cover ring.

8. The material suction device according to claim 5, characterized in that: The communicating hole is provided at one end of the enclosure away from the material suction port; and / or, in the extension direction of the suction pipe, the projection of the suction pipe is circular; And / or, in the extension direction of the enclosure, the projection of the enclosure is circular.

9. The material suction device according to any one of claims 1 to 8, characterized in that: The dust removal pipe includes at least two main pipes and at least one hose, and the hose is arranged between two adjacent main pipes; One of the two main body tubes located at both ends is communicated with the air supply hole, and the other one is provided with the dust suction port.

10. The material suction device according to claim 9, characterized in that: In the extension direction of the suction pipe, the projected area of ​​the inner space of the suction pipe is defined as S1; In the extension direction of the main body tube, the projected area of ​​the inner space of the main body tube is defined as S4, which satisfies the relationship: S4 ≥ S1.

11. The suction device according to any one of claims 1 to 8, characterized in that The suction device further includes a diffusion cover, wherein the end of the diffusion cover having a smaller cross-sectional area is connected to the dust suction port; And / or, the suction device further comprises a fan, and the fan is connected to one end of the suction pipe; And / or, the suction device further includes a driving mechanism, which is connected to the suction pipe and configured to drive the suction pipe to move.

12. A battery production system, characterized in that: The invention comprises a suction device according to any one of claims 1 to 11.

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