Air duct mechanism and drying device

Abstract

The utility model relates to the field of battery manufacturing technology, and in particular to an air duct mechanism and a drying device. The air duct mechanism includes an air outlet duct with a Y-shaped structure, and the air outlet duct includes a converging section, an upper air outlet section and a lower air outlet section, wherein: the upper air outlet section and the lower air outlet section are distributed up and down, and the air inlet of the upper air outlet section and the air inlet of the lower air outlet section are both connected to the converging section; the volume of the lower air outlet section is greater than the volume of the upper air outlet section. In the above structure, the upper air outlet section and the lower air outlet section are used to supply air to the upper and lower air nozzles respectively; the volume of the lower air outlet section is greater than the volume of the upper air outlet section, that is, the lower air outlet section can accommodate more air volume, so that the wind force blown out by the lower air nozzle is greater than the wind force blown out by the upper air nozzle, and the difference in the wind force output by the upper air outlet section and the lower air outlet section can offset the deadweight of the pole piece, improve the stability of the pole piece during the suspension process, and thus alleviate the problems of uneven coating thickness, poor coating quality, and nozzle scraping caused by the shaking of the pole piece.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to an air duct mechanism and a drying device. Background Art

[0002] During the battery manufacturing process, the pole piece needs to be coated. Pole piece coating is a process in which the upper and lower surfaces of the foil are coated with a wet slurry to form a coated pole piece. The wet coated pole piece needs to be dried into a dry coated pole piece by a drying device.

[0003] The drying device includes an oven and a plurality of air nozzles disposed in the oven for blowing air toward the electrode to dry the electrode; the plurality of air nozzles are arranged in two rows, and during the drying process, the electrode is suspended between the two rows of air nozzles under the support of the wind force of the air nozzles. Since the electrode itself has weight, the electrode is easy to shake under the influence of its own weight, which leads to problems such as uneven coating thickness, poor coating quality, and scraping of the material by the air nozzle. Utility Model Content

[0004] The first purpose of the utility model is to provide an air duct mechanism to solve the technical problems existing in the prior art such as unstable pole piece suspension state, uneven coating thickness, poor coating quality, and nozzle scraping.

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

[0006] An air duct mechanism comprises an air outlet duct in a Y-shaped structure, wherein the air outlet duct comprises a converging section, an upper air outlet section and a lower air outlet section, wherein:

[0007] The upper air outlet section and the lower air outlet section are distributed up and down, and the air inlet of the upper air outlet section and the air inlet of the lower air outlet section are both connected to the confluence section; the volume of the lower air outlet section is greater than that of the upper air outlet section.

[0008] Furthermore, it also includes two air valve assemblies, which are respectively arranged on the upper air outlet section and the lower air outlet section, and are respectively used to adjust the opening of the upper air outlet of the upper air outlet section and the opening of the lower air outlet of the lower air outlet section.

[0009] Further, each group of the air valve assembly includes at least one regulating blade;

[0010] The adjusting blades of one group of the air valve assemblies are rotatably and adjustably installed on the upper air outlet section and located at the upper air outlet; the adjusting blades of another group of the air valve assemblies are rotatably and adjustably installed on the lower air outlet section and located at the lower air outlet.

[0011] Furthermore, each group of the air valve components also includes at least one adjusting shaft rotatably mounted on the air outlet duct; the adjusting blades correspond to the adjusting shafts one by one, and the adjusting blades are mounted on the corresponding adjusting shafts.

[0012] Furthermore, each group of air valve assemblies contains a plurality of regulating blades, and the rotation axes of the plurality of regulating blades are parallel to each other and arranged side by side; each group of air valve assemblies also includes a linkage structure, and the linkage structure is used to enable the plurality of regulating blades to cooperate in linkage.

[0013] Furthermore, in each set of air valve assemblies, the linkage structure includes a connecting rod and a plurality of hinged rods, the plurality of hinged rods correspond one-to-one to the plurality of adjusting blades, and the two ends of each hinged rod are respectively connected to the corresponding adjusting blade and the connecting rod.

[0014] Furthermore, it also includes a pressure difference detection structure, which is used to detect the internal pressure difference between the upper air outlet section and the lower air outlet section.

[0015] Furthermore, each group of the air valve assembly further includes a driving source, and an output end of the driving source is connected to one of the regulating blades;

[0016] The driving source can drive the regulating blade to rotate according to the detection result of the pressure difference detection structure.

[0017] Furthermore, the pressure difference detection structure includes a pressure difference sensor, and two probes of the pressure difference sensor extend into the upper air outlet section and the lower air outlet section respectively.

[0018] The second object of the present utility model is to provide a drying device, comprising the air duct mechanism described in any one of the above items.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides an air duct mechanism and a drying device, wherein the air duct mechanism includes an air outlet duct with a Y-shaped structure, and the air outlet duct includes a converging section, an upper air outlet section and a lower air outlet section, wherein: the upper air outlet section and the lower air outlet section are distributed up and down, and the air inlet of the upper air outlet section and the air inlet of the lower air outlet section are both connected to the converging section; the volume of the lower air outlet section is larger than the volume of the upper air outlet section. In the above structure, the upper air outlet section and the lower air outlet section are used to supply air to the upper and lower air nozzles respectively; the volume of the lower air outlet section is larger than the volume of the upper air outlet section, that is, the lower air outlet section can accommodate more air volume, so that the wind force blown out by the lower air nozzle is greater than the wind force blown out by the upper air nozzle, and the difference in wind force output by the upper air outlet section and the lower air outlet section can offset the deadweight of the pole piece, improve the stability of the pole piece during the suspension process, and thus alleviate the problems of uneven coating thickness, poor coating quality, and nozzle scraping caused by the shaking of the pole piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic side view of the structure of the air duct mechanism provided in an embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the three-dimensional structure of the air outlet duct and the air valve assembly provided in the embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of the air duct mechanism provided in the embodiment of the utility model;

[0025] Figure 4 for Figure 2 A magnified view at point A;

[0026] Figure 5 A schematic diagram of the connection structure of the adjusting blade and the linkage structure is provided for the embodiment of the utility model;

[0027] Figure 6 A schematic diagram of the rotation process of the regulating blade is provided for an embodiment of the utility model.

[0028] icon:

[0029] 1-air outlet duct; 11-converging section; 12-upper air outlet section; 121-upper air outlet; 13-lower air outlet section; 131-lower air outlet;

[0030] 2-air valve assembly; 21-adjusting blade; 22-adjusting shaft; 23-linkage structure; 231-connecting rod; 232-hinged rod; 233-rotating shaft; 24-driving source;

[0031] 3-pressure difference detection structure;

[0032] 4- Fan. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] It should be noted that in the description of the present invention, the terms "connection" and "installation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or connected through an intermediate medium; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The first embodiment of the utility model provides an air duct mechanism, referring to Figure 1 The air duct mechanism includes an air outlet duct 1 in a Y-shaped structure, and the air outlet duct 1 includes a converging section 11, an upper air outlet section 12 and a lower air outlet section 13, wherein:

[0037] The upper air outlet section 12 and the lower air outlet section 13 are distributed up and down, and the air inlet of the upper air outlet section 12 and the air inlet of the lower air outlet section 13 are both connected to the converging section 11; the volume of the lower air outlet section 13 is greater than that of the upper air outlet section 12.

[0038] In the above structure, the upper air outlet 121 of the upper air outlet section 12 can be connected to the upper exhaust nozzle for supplying air to the upper exhaust nozzle; the lower air outlet 131 of the lower air outlet section 13 can be connected to the lower exhaust nozzle for supplying air to the lower exhaust nozzle. The present application sets the air outlet duct 1 as a Y-shaped structure so that the upper and lower exhaust nozzles are supplied with air by the upper air outlet section 12 and the lower air outlet section 13 respectively; the volume of the lower air outlet section 13 is larger than the volume of the upper air outlet section 12, that is, the lower air outlet section 13 can accommodate more air volume, so that the wind force blown out of the lower exhaust nozzle is greater than the wind force blown out of the upper exhaust nozzle, and the difference in wind force output by the upper air outlet section 12 and the lower air outlet section 13 can offset the deadweight of the pole piece, improve the stability of the pole piece during the suspension process, and thus alleviate the problems of uneven coating thickness, poor coating quality, and nozzle scraping caused by the shaking of the pole piece.

[0039] Continue to refer to Figure 1 The air duct mechanism further includes a fan 4, which is connected to the confluence section 11 and is used to supply air to the air outlet duct 1. Optionally, the fan 4 can be a variable frequency centrifugal fan.

[0040] Reference Figure 2 The air duct mechanism also includes two air valve assemblies 2, which are respectively arranged on the upper air outlet section 12 and the lower air outlet section 13, and are respectively used to adjust the opening of the upper air outlet 121 of the upper air outlet section 12 and the opening of the lower air outlet 131 of the lower air outlet section 13.

[0041] In the above structure, the two air valve assemblies 2 are used to adjust the opening area of ​​the upper air outlet 121 and the opening area of ​​the lower air outlet 131, respectively, and then adjust the air intake of the upper and lower rows of air nozzles respectively. During the drying process of the electrode piece, the two air valve assemblies 2 can adjust the opening of the upper air outlet 121 and the opening of the lower air outlet 131 in real time according to the suspension state of the electrode piece, and then adjust the air intake of the upper and lower rows of air nozzles respectively, so that the electrode piece is in a stable suspension state, thereby improving the drying effect of the electrode piece.

[0042] It should be noted that Figure 2 In the illustrated embodiment, the upper air outlet section 12 and the lower air outlet section 13 are installed in a box.

[0043] Reference Figure 3 The air duct mechanism further includes a pressure difference detection structure 3, which is used to detect the internal pressure difference between the upper air outlet section 12 and the lower air outlet section 13. The pressure difference detection structure 3 can monitor the internal pressure difference between the upper air outlet section 12 and the lower air outlet section 13 in real time; according to the detection result of the pressure difference detection structure 3, the two air valve assemblies 2 respectively adjust the opening of the upper air outlet 121 and the opening of the lower air outlet 131, so that the wind force difference blown out from the upper air outlet section 12 and the lower air outlet section 13 can offset the deadweight of the pole piece, ensuring that the pole piece can be in a stable suspension state.

[0044] In this embodiment, the pressure difference detection structure 3 includes a pressure difference sensor, and two probes of the pressure difference sensor extend into the upper air outlet section 12 and the lower air outlet section 13 respectively. The pressure difference sensor is a sensor used to measure the difference between two pressures, and the internal pressure difference of the upper air outlet section 12 and the lower air outlet section 13 can be directly detected by the pressure difference sensor.

[0045] In other embodiments, the pressure difference detection structure 3 can also be two pressure sensors, which are used to detect the internal pressure of the upper air outlet section 12 and the internal pressure of the lower air outlet section 13 respectively. By calculating the difference between the detection values ​​of the two pressure sensors, the internal pressure difference between the upper air outlet section 12 and the lower air outlet section 13 can also be obtained.

[0046] Reference Figure 4 , each set of air valve components 2 includes at least one regulating blade 21;

[0047] The adjusting blades 21 of one set of air valve assemblies 2 are rotatably and adjustably mounted on the upper air outlet section 12 and located at the upper air outlet 121 ; the adjusting blades 21 of another set of air valve assemblies 2 are rotatably and adjustably mounted on the lower air outlet section 13 and located at the lower air outlet 131 .

[0048] The number of the adjusting blades 21 can be adaptively adjusted according to actual use requirements, and is not limited here. When there are multiple adjusting blades 21, the rotation axes of the multiple adjusting blades 21 are parallel to each other and are distributed in sequence along the length direction of the air outlet.

[0049] On the basis of the above structure, each set of air valve components 2 further includes at least one adjusting shaft 22 rotatably mounted on the air outlet duct 1 ; the adjusting blades 21 correspond to the adjusting shafts 22 one by one, and the adjusting blades 21 are mounted on the corresponding adjusting shafts 22 .

[0050] Specifically, in the air valve assembly 2 installed in the upper air outlet section 12, the upper and lower ends of the adjusting shaft 22 are respectively rotatably connected to the top wall and the bottom wall of the upper air outlet section 12; in the air valve assembly 2 installed in the lower air outlet section 13, the upper and lower ends of the adjusting shaft 22 are respectively rotatably connected to the top wall and the bottom wall of the lower air outlet section 13; a corresponding set of adjusting blades 21 and the adjusting shaft 22 can be fixedly connected by means of snap connection, screw connection, gluing, etc., so that the two can move synchronously.

[0051] In this embodiment, there are multiple adjusting blades 21 in each group of air valve assemblies 2, and the rotation axes of the multiple adjusting blades 21 are parallel to each other and distributed side by side; each group of air valve assemblies 2 also includes a linkage structure 23, which is used to make the multiple adjusting blades 21 cooperate in linkage.

[0052] When in use, the user only needs to rotate one of the adjusting blades 21 in the air valve assembly 2, and the remaining adjusting blades 21 can move synchronously through the linkage structure 23, so there is no need to adjust each adjusting blade 21 separately, which saves adjustment time and facilitates operator control.

[0053] Continue to refer to Figure 4 Each set of air valve components 2 further includes a driving source 24, and an output end of the driving source 24 is connected to one of the regulating blades 21;

[0054] The driving source 24 can drive the regulating blade 21 to rotate according to the detection result of the pressure difference detection structure.

[0055] Specifically, the driving source 24 can be a motor; in each group of air valve assemblies 2, one end of an adjusting shaft 22 extends from the air outlet duct 1 and is connected to the output shaft of the driving source 24; therefore, when the driving source 24 is working, the output shaft of the driving source 24 drives the adjusting shaft 22 to rotate, and then drives the adjusting blade 21 installed on the adjusting shaft 22 to rotate; through the linkage structure 23, the remaining adjusting blades 21 are driven to rotate to achieve the adjustment of the air outlet opening.

[0056] Reference Figure 5 and Figure 6 In each set of air valve assemblies 2, the linkage structure 23 includes a connecting rod 231 and a plurality of hinged rods 232. The plurality of hinged rods 232 correspond one to one with the plurality of adjustment blades 21. The two ends of each hinged rod 232 are respectively connected to the corresponding adjustment blade 21 and the connecting rod 231.

[0057] Specifically, one end of each hinge rod 232 can be fixedly connected to the corresponding adjustment blade 21 by means of clamping, screwing, integral molding, etc., and the other end of each hinge rod 232 is hinged to the connecting rod 231 through the rotating shaft 233. The connecting rod 231 includes a connecting rod body and a plurality of pins extending from the connecting rod body toward the adjustment blade 21. The plurality of hinge rods 232 and the plurality of pins correspond one to one, and a corresponding set of hinge rods 232 and the pins are hinged through the rotating shaft 233.

[0058] In order to reduce the occupied space and improve the compactness of the device, the linkage structure 23 is arranged at one end of the adjusting blade 21 along the rotation axis. The connecting rod 231 and the plurality of hinge rods 232 are both sheet-like structures to minimize the height of the linkage structure 23.

[0059] The second aspect of the present invention provides a drying device, which includes the air duct mechanism provided by any of the above embodiments. The drying device provided by the present invention also has at least all the technical effects of the above air nozzle, which will not be described in detail here.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An air duct mechanism, characterized in that: The invention comprises an air outlet duct (1) with a Y-shaped structure, wherein the air outlet duct (1) comprises a converging section (11), an upper air outlet section (12) and a lower air outlet section (13), wherein: The upper air outlet section (12) and the lower air outlet section (13) are distributed up and down, and the air inlet of the upper air outlet section (12) and the air inlet of the lower air outlet section (13) are both connected to the converging section (11); the volume of the lower air outlet section (13) is greater than the volume of the upper air outlet section (12).

2. The air duct mechanism according to claim 1, characterized in that: It also comprises two air valve assemblies (2), the two air valve assemblies (2) being respectively arranged on the upper air outlet section (12) and the lower air outlet section (13), and being respectively used to adjust the opening of the upper air outlet (121) of the upper air outlet section (12) and the opening of the lower air outlet (131) of the lower air outlet section (13).

3. The air duct mechanism according to claim 2, characterized in that: Each group of the air valve components (2) comprises at least one adjusting blade (21); The adjusting blades (21) of one group of the air valve assemblies (2) are rotatably and adjustably mounted on the upper air outlet section (12) and are located at the upper air outlet (121); and the adjusting blades (21) of another group of the air valve assemblies (2) are rotatably and adjustably mounted on the lower air outlet section (13) and are located at the lower air outlet (131).

4. The air duct mechanism according to claim 3, characterized in that: Each group of the air valve components (2) further comprises at least one adjusting shaft (22) rotatably mounted on the air outlet duct (1); the adjusting blades (21) correspond to the adjusting shafts (22) one by one, and the adjusting blades (21) are mounted on the corresponding adjusting shafts (22).

5. The air duct mechanism according to claim 3, characterized in that: The number of the regulating blades (21) in each set of air valve assemblies (2) is multiple, and the rotation axes of the multiple regulating blades (21) are parallel to each other and arranged side by side; each set of air valve assemblies (2) also includes a linkage structure (23), and the linkage structure (23) is used to enable the multiple regulating blades (21) to cooperate with each other.

6. The air duct mechanism according to claim 5, characterized in that: In each set of air valve assemblies (2), the linkage structure (23) comprises a connecting rod (231) and a plurality of hinged rods (232), the plurality of hinged rods (232) corresponding one-to-one to a plurality of adjusting blades (21), and the two ends of each hinged rod (232) are respectively connected to the corresponding adjusting blade (21) and the connecting rod (231).

7. The air duct mechanism according to claim 3, characterized in that: It also comprises a pressure difference detection structure (3), wherein the pressure difference detection structure (3) is used to detect the internal pressure difference between the upper air outlet section (12) and the lower air outlet section (13).

8. The air duct mechanism according to claim 7, characterized in that: Each group of the air valve components (2) further comprises a driving source (24), wherein an output end of the driving source (24) is connected to one of the regulating blades (21); The driving source (24) can drive the regulating blade (21) to rotate according to the detection result of the pressure difference detection structure (3).

9. The air duct mechanism according to claim 7, characterized in that: The pressure difference detection structure (3) comprises a pressure difference sensor, and two probes of the pressure difference sensor extend into the upper air outlet section (12) and the lower air outlet section (13) respectively.

10. A drying device, characterized in that: It comprises the air duct mechanism as described in any one of claims 1 to 9.

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