Drying oven air outlet structure and coating drying oven

Abstract

The utility model provides a drying oven air outlet structure which comprises an air nozzle body and an air blocking assembly, a main air inlet and a main air outlet are formed in the two ends of the air nozzle body, an air channel is formed in an inner cavity of the air nozzle body, an air blocking opening is formed in the side wall of the air nozzle body, and the air blocking assembly comprises a blocking piece and a driving mechanism. The driving mechanism is used for driving the blocking piece to penetrate through the air blocking opening and shield the air channel. The utility model further provides a coating oven which comprises air blowing equipment and the oven air outlet structure fixedly connected with the air blowing equipment, and the air blowing equipment is communicated with the main air inlet. According to the air outlet structure of the drying oven, the driving mechanism can drive the blocking piece to penetrate through the air blocking opening and block the air channel, hot air on the edge of the air outlet can be reduced, the temperature and the air volume of the edge of the air outlet are reduced, the drying speed of the edge during drying is reduced, and cracking caused by overheating of the edge is avoided. The problem that the edge is excessively dried during drying can be effectively solved, and meanwhile waste and labor cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production equipment, in particular to an oven air outlet structure and a coating oven. Background Art

[0002] The battery pole piece is the main active material layer in the battery and one of the core parts of the battery. It is composed of positive electrode active material, negative electrode active material and conductive agent. During the battery manufacturing process, the battery pole piece needs to be dried. The purpose of drying is to remove moisture from the battery pole piece to ensure the normal operation and performance of the battery. Moisture is an impurity in the battery pole piece. Excessive moisture will affect the conductivity of the battery and cause incomplete oxidation reaction of the battery. The pole piece needs to be dried in an oven with a nozzle.

[0003] The air nozzle is a component of the oven, usually located at the air outlet of the oven and connected to the blower. It guides the hot air to flow through the electrode. During the drying and heating process of the oven, the hot air flows out of the oven through the air nozzle and flows through the electrode, taking away the evaporated moisture in the electrode and speeding up the drying speed. The proper shape and position of the air nozzle can improve the drying effect.

[0004] In the current market, TFL patches (shielding sheets made of Teflon material) are pasted on the edge of the air outlet of the nozzle to prevent the edges of the parts to be dried on the production line from being over-dried and cracked. However, after long-term high-temperature heating, the TFL patches may fall off and break, causing abnormal appearance of the electrode. Moreover, when the coating model and size of the parts to be dried are changed, the TFL patches at the original oven nozzle need to be removed and new TFL patches need to be pasted, which increases material and labor costs. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an oven air outlet structure and a coating oven, which can reduce the hot air at the edge of the main air outlet, reduce the temperature and air volume at the edge of the main air outlet, and thus reduce the drying speed of the edge during drying, and avoid cracking caused by overheating at the edge. It can effectively solve the problem of over-drying of the edge during drying, and at the same time reduce waste and reduce labor costs.

[0006] The utility model provides an oven air outlet structure, comprising an air nozzle body and a wind shield assembly, wherein two ends of the air nozzle body are provided with a main air inlet and a main air outlet, an inner cavity of the air nozzle body forms an air duct, a side wall of the air nozzle body is provided with a wind shield opening, the wind shield assembly comprises a baffle and a driving mechanism, and the driving mechanism is used to drive the baffle to pass through the wind shield opening and block the air duct.

[0007] Furthermore, the driving mechanism includes a rotating roller and a connecting member, the baffle is rolled on the rotating roller and rolls as the rotating roller rotates, the connecting member is fixedly arranged on the outer side wall of the nozzle body, and the rotating roller is rotatably mounted on the connecting member.

[0008] Furthermore, the driving mechanism further comprises two connecting members, the two connecting members are arranged oppositely on both sides of the windshield opening, the rotating roller is rotatably mounted on the two connecting members, and the two connecting members are located at both ends of the rotating roller.

[0009] Furthermore, the driving mechanism further comprises a locking member and a locking protrusion, wherein the locking member and the locking protrusion are respectively arranged on both sides of the connecting member to lock the relative position of the connecting member and the rotating roller.

[0010] Furthermore, the locking protrusion is fixedly connected to one end of the rotating roller, and the cross-sectional area of ​​the locking protrusion is larger than the area of ​​the rotating roller installation opening on the connecting member.

[0011] Furthermore, the locking member is connected to the other end of the rotating roller, the locking member is movably mounted on the rotating roller, and the cross-sectional area of ​​the locking member is larger than the area of ​​the rotating roller mounting opening on the connecting member.

[0012] Furthermore, the driving mechanism comprises a guide rail, the guide rail is arranged on the inner side wall of the nozzle body, and the baffle is slidably installed in the guide rail along the guide rail.

[0013] Furthermore, the oven air outlet structure also includes a nozzle seat, a mounting piece and a buckle, the nozzle seat is provided with a secondary air outlet and a secondary air inlet, the mounting piece is arranged around the secondary air inlet, the buckle is arranged on the outer side of the nozzle seat, the nozzle seat is fixedly connected to the nozzle body and the secondary air outlet is aligned with the main air inlet.

[0014] Furthermore, a scale groove is provided on the surface of the baffle.

[0015] The utility model also provides a coating oven, comprising an air blast device and an oven air outlet structure as described in any one of the above items fixedly connected thereto, wherein the air blast device is connected to the main air inlet; the oven air outlet structure is used to be installed at the air outlet of the air blast device to guide the wind to pass through the air duct and be blown out from the main air outlet of the oven air outlet structure.

[0016] In summary, the utility model drives the baffle through the windshield and blocks the wind duct through the driving mechanism, which can reduce the hot air at the edge of the air outlet, reduce the temperature and air volume at the edge of the air outlet, thereby reducing the drying speed of the edge during drying and avoiding cracking caused by overheating at the edge. It can effectively solve the problem of over-drying the edge during drying, while reducing waste and labor costs.

[0017] Furthermore, the locking protrusion and the locking member squeeze the connecting member from both sides, so that the relative position of the rotating roller and the connecting member is locked, and the length of the baffle extending into the air duct is locked, thereby achieving the effect of adjusting the length of the low-temperature area at the edge of the air outlet.

[0018] Moreover, the replaceable air nozzle seat can adapt to different models and specifications of air blowing equipment, thereby enhancing the applicability of the oven air outlet structure.

[0019] In addition, a scale groove is provided on the surface of the baffle for observing the length of the baffle extending into the air duct, thereby achieving the effect of accurately controlling the length of the low-temperature area at the edge of the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a front view of the oven air outlet structure in the embodiment of the utility model;

[0022] Figure 2 It is a side view of the air outlet structure of the oven in the embodiment of the utility model;

[0023] Figure 3 This is a structural schematic diagram of the oven air outlet structure in the embodiment of the utility model;

[0024] Figure 4 The structure explosion of the oven air outlet structure in the embodiment of the utility model Figure 1 ;

[0025] Figure 5 The structure explosion of the oven air outlet structure in the embodiment of the utility model Figure 2 ;

[0026] Figure 6 It is a structural perspective view of the windshield component in an embodiment of the utility model.

[0027] Among them, the reference numerals of the embodiments of the utility model in the above drawings are as follows:

[0028] 100, air nozzle body; 101, main air inlet; 102, main air outlet; 103, windshield;

[0029] 200, windshield assembly; 210, baffle; 220, driving mechanism; 221, rotating roller; 222, connecting member; 223, locking member; 224, locking protrusion; 225, guide rail; 226, rotating hole;

[0030] 300, air nozzle seat; 301, secondary air outlet; 302, secondary air inlet;

[0031] 400, mounting parts;

[0032] 500. Buckle. DETAILED DESCRIPTION

[0033] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description 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] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0036] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0037] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0038] The following is a detailed description through specific embodiments.

[0039] like Figures 1 to 6 As shown, an embodiment of the utility model provides an oven air outlet structure, which is used to be installed at the air outlet of the air blowing device of the oven to guide the wind to be blown out from the oven air outlet structure, and includes a nozzle body 100 and a wind shielding component 200.

[0040] like Figure 4 and Figure 5 As shown, a main air inlet 101 and a main air outlet 102 are provided at both ends of the nozzle body 100. The main air inlet 101 is located at the bottom of the nozzle body 100; the main air outlet 102 is located at the top of the nozzle body 100. The inner cavity of the nozzle body 100 forms an air duct, which connects the main air inlet 101 and the main air outlet 102. Hot air enters the air duct from the main air inlet 101 and blows out of the nozzle body 100 from the main air outlet 102. A wind shield 103 is provided on the side wall of the nozzle body 100.

[0041] like Figure 3 and Figure 4 As shown, the windshield assembly 200 includes a baffle 210 and a driving mechanism 220, and the driving mechanism 220 is used to drive the baffle 210 to pass through the windshield opening 103 and block the air duct. The baffle 210 is a plastic metal sheet used to block the hot air at the edge of the air duct. The use of a more stable metal baffle 210 avoids the temporary TFL patch that needs regular maintenance and replacement in the past, thereby improving reliability. Specifically, in the embodiment of the utility model, two windshield assemblies 200 are provided for shielding both ends of the air duct, and the windshield assemblies 200 on both sides can be set to the same or different shielding lengths to adapt to different pole piece drying requirements.

[0042] like Figure 4 As shown, in this embodiment, the driving mechanism 220 includes a rotating roller 221 and a connecting member 222, the baffle 210 is wound on the rotating roller 221 and rolls with the rotation of the rotating roller 221, the connecting member 222 is fixedly arranged on the outer wall of the air nozzle body 100, and the rotating roller 221 is rotatably mounted on the connecting member 222. The baffle 210 is wound on the rotating roller 221 in a manner similar to a reel, and when the rotating roller 221 rotates, the baffle 210 stretches out and inserts into the air duct; when the rotating roller 221 rotates in another direction, the baffle 210 is rolled back onto the rotating roller 221 and retracted from the air duct.

[0043] like Figure 6As shown, in this embodiment, a rotation hole 226 is formed on the connecting member 222, and the rotating roller 221 passes through the rotation hole 226 and rotates therein. One end of the connecting member 222 is fixedly connected to the outer wall of the nozzle body 100, and the other end is connected to the rotating roller 221 through the rotation hole 226, so as to support the rotating roller 221. The connecting member 222 is configured to allow the baffle 210 on the rotating roller 221 to pass through the wind shield opening 103 and extend into the air duct.

[0044] In this embodiment, the driving mechanism 220 further includes two connecting members 222 , which are disposed oppositely on both sides of the windshield opening 103 , and the rotating roller 221 is rotatably mounted on the two connecting members 222 and the two connecting members 222 are located at both ends of the rotating roller 221 .

[0045] In this embodiment, the driving mechanism 220 also includes a locking member 223 and a locking protrusion 224, which are respectively arranged on both sides of the connecting member 222, and can apply pressure to the connecting member 222 from both sides at the same time to lock the relative position of the connecting member 222 and the rotating roller 221.

[0046] In this embodiment, the locking protrusion 224 is fixedly connected to one end of the rotating roller 221, and the cross-sectional area of ​​the locking protrusion 224 is larger than the area of ​​the installation opening (i.e., the rotating hole 226) of the rotating roller 221 on the connecting member 222. The locking protrusion 224 abuts against the side surface of the connecting member 222, and brakes the rotating roller 221 through static friction.

[0047] In this embodiment, the locking member 223 is connected to the other end of the rotating roller 221, and the locking member 223 is movably mounted on the rotating roller 221. The cross-sectional area of ​​the locking member 223 is larger than the area of ​​the mounting opening (i.e., the rotating hole 226) of the rotating roller 221 on the connecting member 222. Specifically, when the locking member 223 is away from the connecting member 222, the rotating roller 221 can be rotated freely by rotating the locking protrusion 224 fixedly connected thereto or directly rotating the rotating roller 221, and the blocking piece 210 is extended or retracted accordingly. When the locking member 223 contacts and presses the connecting member 222, the locking protrusion 224 also presses the connecting member 222 on the other side. At this time, the rotating roller 221 is locked and cannot rotate freely under the action of static friction, and the extended length of the blocking piece 210 is fixed.

[0048] In this embodiment, the cross-sectional areas of the locking member 223 and the locking protrusion 224 are both larger than the area of ​​the rotating hole 226, so as to prevent the rotating roller 221 from coming off the connecting member 222. The locking member 223 and the locking protrusion 224 can press the contact part of the connecting member 222, and limit the rotation of the rotating roller 221 by static friction.

[0049] In this embodiment, the driving mechanism 220 includes a guide rail 225, which is arranged on the inner side wall of the air nozzle body 100, and the baffle 210 can be slidably installed in the guide rail 225 along the guide rail 225. Specifically, the baffle 210 slides along the guide rail 225 to adjust the area of ​​the air duct blocked. There are two guide rails 225, which are respectively located on both sides of the air shielding port 103. The baffle 210 passes through the air shielding port 103 and extends into the guide rail 225, and slides along the direction of the guide rail 225. In this embodiment, the direction of the guide rail 225 is perpendicular to the air outlet direction of the air duct, and is located at the edge of the air duct, which is used to guide the baffle 210 to block the hot air at the edge, thereby reducing the temperature and air volume at the edge of the main air outlet 102 of the air nozzle body 100.

[0050] like Figure 5 As shown, in this embodiment, the oven air outlet structure further includes a nozzle seat 300 , a mounting member 400 and a buckle 500 .

[0051] The nozzle seat 300 is used to connect the nozzle body 100 and the blasting device. Since the air outlet sizes of blasting devices of different models and specifications are different, the corresponding nozzle seat 300 adapter is required to improve the applicability of the nozzle body 100. The nozzle seat 300 is provided with a secondary air outlet 301 and a secondary air inlet 302. The secondary air outlet 301 is fixedly connected to the main air inlet 101 of the nozzle body 100, and the secondary air inlet 302 is fixedly connected to the air outlet of the blasting device, and is used to guide the hot air generated by the blasting device through the nozzle seat 300 to the nozzle body 100. The nozzle seat 300 is fixedly connected to the nozzle body 100 and the secondary air outlet 301 is aligned with the main air inlet 101. The secondary air outlet 301 is in a dense mesh shape, which can make the hot air blow out evenly and increase the wind pressure.

[0052] The mounting member 400 is arranged around the secondary air inlet 302, and is used to be fixedly connected with the air blowing device, and plays a role of sealing the connection. Specifically, the mounting member 400 is a nozzle seat mounting flange or other structures with similar functions.

[0053] The buckle 500 is disposed on the outer side of the nozzle holder 300 to increase the connection stability between the nozzle holder 300 and the blowing device.

[0054] In this embodiment, a scale groove for observing the length of the baffle 210 extending into the air duct is provided on the surface of the baffle 210, and the direction of the scale groove is consistent with the length direction of the baffle 210. Since the nozzle body 100 is opaque, the scale groove is provided to facilitate understanding of the length of the baffle 210 extending into the air duct, and the length blocked by the baffle 210 can be adjusted according to the pole pieces of different models and specifications. If the pole piece length is shorter, the length of the baffle 210 extending into the air duct needs to be increased accordingly, and if the pole piece length is longer, the length of the baffle 210 extending into the air duct needs to be reduced accordingly. The use of a metal baffle 210 with a scale groove can achieve precise adjustment and avoid the problems of non-uniformity and non-standardization caused by manual operation. The use of a flexible movable and pullable baffle 210 structure avoids the problem of batch replacement of the edge temporary shielding TFL patch every time the model is changed, and can adapt to the coating of varieties of different widths, the effect is controllable, and a large amount of disassembly and replacement is not required, which improves adaptability.

[0055] The utility model also provides a coating oven, comprising a blasting device and any oven air outlet structure as described above fixedly connected thereto, wherein the air outlet of the blasting device is connected to the main air inlet 101. The oven air outlet structure is used to be installed at the air outlet of the blasting device to guide the air to pass through the air duct and be blown out from the main air outlet 101 of the oven air outlet structure.

[0056] In this embodiment, the coating oven includes a production line and a plurality of oven air outlet structures, and the plurality of oven air outlet structures are arranged on one side or on both sides along the production line, and are used to coat the products to be dried on the production line, such as the pole pieces, on one side or on both sides. Optionally, coating is added to the air blast device, so that the coating can be blown onto the pole piece with the hot air, thereby realizing the function of coating the coating, and the wind shield assembly 200 can control the coating effect and drying effect of the edge area of ​​the pole piece.

[0057] The working principle of the embodiment of the utility model is as follows: the blasting device of the oven is fixedly connected to the nozzle seat 300, and the nozzle seat 300 is fixedly connected to the nozzle body 100. The hot air generated by the blasting device flows from the air outlet of the blasting device through the secondary air inlet 302 and the secondary air outlet 301 to the main air inlet 101 of the nozzle body 100, and then blows out from the main air outlet 102 of the nozzle body 100 to the products to be dried on the production line, such as pole pieces, after passing through the air duct. The hot air is blocked by the wind shield assembly 200 when blowing through the air duct, so that the air volume and temperature at the edge of the main air outlet 102 of the nozzle body 100 are reduced. And the shielding area of ​​the wind shield assembly 200 can be adjusted with the expansion and contraction of the baffle 210 to be suitable for products to be dried of different models and specifications. Optionally, the oven can be provided with two nozzle bodies 100 opposite to each other to dry both sides of the product to be dried at the same time, and the air outlet of the blasting device can be divided into two and connected to the two nozzle bodies 100 at the same time, or can be connected separately by two blasting devices.

[0058] In summary, the embodiment of the utility model drives the baffle 210 through the windshield 103 and blocks the wind duct through the driving mechanism 220, which can reduce the hot air at the edge of the main air outlet 102, reduce the edge temperature and air volume of the main air outlet 102, thereby reducing the drying speed of the edge during drying and avoiding cracking caused by overheating at the edge. It can effectively solve the problem of over-drying the edge during drying, while reducing waste and labor costs.

[0059] Furthermore, by squeezing the connecting member 222 from both sides through the locking protrusion 224 and the locking member 223, the relative positions of the rotating roller 221 and the connecting member 222 are locked, and the length of the baffle 210 extending into the air duct is locked, thereby achieving the effect of adjusting the length of the low-temperature area at the edge of the main air outlet 102.

[0060] Moreover, the replaceable air nozzle holder 300 can be used to adapt to air blowing devices of different models and specifications, thereby enhancing the applicability of the oven air outlet structure.

[0061] In addition, a scale groove is provided on the surface of the baffle 210 for observing the length of the baffle 210 extending into the air duct, thereby achieving the effect of accurately controlling the length of the low-temperature area at the edge of the main air outlet 102 .

[0062] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. An oven air outlet structure, characterized in that: The invention comprises a nozzle body and a wind shield assembly, wherein two ends of the nozzle body are provided with a main air inlet and a main air outlet, the inner cavity of the nozzle body forms an air duct, the side wall of the nozzle body is provided with a wind shield opening, the wind shield assembly comprises a baffle and a driving mechanism, the driving mechanism is used to drive the baffle to pass through the wind shield opening and block the air duct; the driving mechanism comprises a rotating roller and a connecting member, the baffle is rolled on the rotating roller and rolls as the rotating roller rotates, the connecting member is fixedly arranged on the outer side wall of the nozzle body, and the rotating roller is rotatably mounted on the connecting member.

2. The oven air outlet structure according to claim 1, characterized in that: The driving mechanism further comprises two connecting members, which are arranged oppositely on both sides of the windshield opening, and the rotating roller is rotatably mounted on the two connecting members, and the two connecting members are located at both ends of the rotating roller.

3. The oven air outlet structure according to claim 1, characterized in that: The driving mechanism further comprises a locking member and a locking protrusion, wherein the locking member and the locking protrusion are respectively arranged on both sides of the connecting member to lock the relative position of the connecting member and the rotating roller.

4. The oven air outlet structure according to claim 3, characterized in that: The locking protrusion is fixedly connected to one end of the rotating roller, and the cross-sectional area of ​​the locking protrusion is larger than the area of ​​the rotating roller installation opening on the connecting member.

5. The oven air outlet structure according to claim 4, characterized in that: The locking member is connected to the other end of the rotating roller, and the locking member is movably mounted on the rotating roller. The cross-sectional area of ​​the locking member is larger than the area of ​​the rotating roller mounting opening on the connecting member.

6. The oven air outlet structure according to claim 1, characterized in that: The driving mechanism comprises a guide rail, the guide rail is arranged on the inner side wall of the air nozzle body, and the baffle is slidably installed in the guide rail along the guide rail.

7. The oven air outlet structure according to claim 1, characterized in that: The oven air outlet structure also includes a nozzle seat, a mounting piece and a buckle. The nozzle seat is provided with a secondary air outlet and a secondary air inlet. The mounting piece is arranged around the secondary air inlet, and the buckle is arranged on the outer side of the nozzle seat. The nozzle seat is fixedly connected to the nozzle body and the secondary air outlet is aligned with the main air inlet.

8. The oven air outlet structure according to claim 1, characterized in that: The surface of the baffle is provided with a scale groove.

9. A coating oven, characterized in that: It comprises an air blowing device and an oven air outlet structure as described in any one of claims 1 to 8 which is fixedly connected thereto, wherein the air blowing device is connected to the main air inlet; the oven air outlet structure is used to be installed at the air outlet of the air blowing device to guide the wind to pass through the air duct and be blown out from the main air outlet of the oven air outlet structure.

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