Mixed heating oven

Abstract

The utility model relates to the technical field of battery pole piece drying production, and discloses a mixed heating oven which comprises an oven body, a conveying channel and tuyere units are arranged in the oven body, the tuyere units are connected with the oven body, and the tuyere units are distributed on the upper side and the lower side of the conveying channel. The tuyere units on the upper side of the conveying channel and the tuyere units on the lower side of the conveying channel are arranged in a staggered mode. A plurality of heating units are arranged in the drying oven body, distributed on the upper side and the lower side of the conveying channel and used for heating the pole pieces through electromagnetic heating or infrared heating. According to the scheme, the tuyere units are arranged on the upper side and the lower side of the conveying channel in a staggered mode, the pole pieces are conveyed in a suspended mode through the tuyere units when the pole pieces move in the conveying channel, meanwhile, hot air blown out by the tuyere units dries the pole pieces, and the heating unit heats and dries the pole pieces in an electromagnetic heating or infrared heating mode. And the auxiliary drying effect is achieved, drying of the pole pieces is accelerated, and the drying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pole piece drying production technical field especially relates to a mixed heating oven. BACKGROUND

[0002] The pole piece is the core component of lithium ion battery, mainly by the current collector and the active material coated on its surface, plays a key role in the battery charging and discharging process. The pole piece obtained by wet coating method usually adopts coating equipment to uniformly coat the prepared slurry on the surface of the current collector. The wet pole piece after coating contains a large amount of solvent, which needs to be dried by oven and other equipment to remove the solvent, so that the active material is firmly attached to the current collector. The pole piece drying process usually uses air floating oven to realize. The air floating oven mainly uses the wall effect in air dynamics principle to make the substrate run smoothly in the oven under the pressure of air nozzle or guide rail, and the air blown to the both sides of the web by the nozzle replaces the traditional roller transmission system to realize the transmission and support of the web and dry the double-sided coating at the same time.

[0003] Chinese patent CN202323100596.6 discloses a chamber structure, coating oven and coating equipment, which comprises a first chamber, a second chamber and a one-way adjusting assembly. The first chamber and the second chamber are communicated through the one-way adjusting assembly. The first chamber has a first air inlet and a first air outlet, and the first air outlet is provided with an exhaust pump. The second chamber has a second air inlet and a second air outlet, and the second air inlet is provided with an air inlet pump. Part of the gas in the first chamber flows to the second chamber through the one-way adjusting assembly. By arranging the one-way adjusting assembly between the first chamber and the second chamber, the gas between the first chamber and the second chamber forms a one-way flow, which avoids the new air in the second chamber being sucked into the first chamber from the second chamber under the suction of the exhaust pump in the first chamber, and the insufficient new air supplement in the second chamber, and then balances the humidity of the circulating gas in the oven through sufficient new air supplement, and improves the drying effect of the coating oven on the pole piece. The scheme needs to be improved.

[0004] The utility model overcomes the shortcomings of prior art, provides a mixed heating oven, can promote pole piece drying efficiency. UTILITY MODEL CONTENTS

[0005] The utility model mainly aims at providing a mixed heating oven, including the oven body, be equipped with the conveying channel and the air nozzle unit in the oven body, the air nozzle unit with oven body link, the air nozzle unit distribution in the upper side and the lower side of conveying channel, the air nozzle unit of conveying channel upper side with the air nozzle unit of conveying channel lower side staggered setting, be equipped with a plurality of heating units in the oven body, the heating unit distribution in the upper side and the lower side of conveying channel, the heating unit carries out heating to the pole piece through electromagnetic heating or infrared heating.

[0006] Optionally, the heating unit is arranged inside the air nozzle unit.

[0007] Optionally, the air nozzle unit comprises a shell, the shell is a long square structure, the length of the shell is adapted to the width of the conveying channel, the lower end of the shell is an air inlet, the upper end of the shell is an air outlet, the air inlet is communicated with the air duct, the air outlet is directed to the conveying channel, a uniform plate is arranged inside the shell, and the heating unit is arranged at the air outlet.

[0008] Optionally, the heating unit comprises an electromagnetic heating plate and a wind guide plate, the wind guide plate is arranged at the air outlet, the wind guide plate is fixedly connected with the shell, the length of the wind guide plate is adapted to the length of the shell, the wind guide plate is recessed towards the inside of the shell to form a cavity, a clamping groove is arranged at the opening of the cavity to clamp the electromagnetic heating plate, there is a gap between the side surface of the wind guide plate and the side surface of the shell, and the opening of the cavity is located inside the shell.

[0009] Optionally, the heating unit comprises an infrared tube, a transmission plate and a reflection plate, the reflection plate is arranged at the air outlet, the reflection plate is fixedly connected with the shell, the length of the reflection plate is adapted to the length of the shell, the reflection plate is recessed towards the inside of the shell to form a cavity, the transmission plate is arranged at the opening of the cavity, the infrared tube is arranged in the cavity, there is a gap between the side surface of the reflection plate and the side surface of the shell, and the opening of the cavity is located inside the shell.

[0010] Optionally, the side surface of the shell is provided with heat dissipation holes.

[0011] Optionally, the heating unit is arranged between adjacent air nozzle units, the heating unit is connected with the oven body, and the heating units on the upper side of the conveying channel and the heating units on the lower side of the conveying channel are arranged staggered.

[0012] Optionally, the heating unit comprises an adjusting bracket, a fixing bracket, an electromagnetic heating plate and a dismounting handle, the fixing bracket is connected with the oven body, the fixing bracket and the adjusting bracket are adapted to the width of the conveying channel, the electromagnetic heating plate is arranged on the adjusting bracket, the adjusting bracket is movably connected with the fixing bracket, and the dismounting handle is arranged on the short end side surface of the adjusting bracket.

[0013] Optionally, the adjusting bracket is a concave structure, the electromagnetic heating plate is arranged at the bottom of the adjusting bracket, a first connecting hole is arranged on the long end side surface of the adjusting bracket, the fixing bracket is provided with a second connecting hole corresponding to the first connecting hole, and the first connecting hole and the second connecting hole are connected through a locking member.

[0014] Optionally, the oven body comprises an air duct, the air duct is in communication with the air nozzle unit, the air duct is communicated with the outside of the oven body through an air outlet, a fan, a heat exchanger and a filter are sequentially arranged in the air duct, the fan drives air to enter the air duct from the air outlet, and then the air is sequentially conveyed to the air nozzle unit through the heat exchanger and the filter.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The mixed heating oven provided by the utility model is provided with the air nozzle units staggered on the upper and lower sides of the conveying channel, the pole piece is suspended and conveyed through the air nozzle units when moving in the conveying channel, the hot air blown out by the air nozzle units is used for drying the pole piece, the heating unit is used for heating and drying the pole piece through electromagnetic heating or infrared heating, the function of auxiliary drying is achieved, the drying of the pole piece is accelerated, and the drying efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] One or more embodiments are exemplarily described by corresponding drawings, the exemplarily description does not constitute limitation to the embodiments, elements with the same reference numerals in the drawings represent similar elements, unless specially stated, the drawings do not constitute proportional limitation.

[0018] Figure 1 For the mixed heating oven embodiment of the utility model Figure 1 ;

[0019] Figure 2 For the mixed heating oven embodiment of the utility model, the heating unit and the air nozzle unit are separately arranged Figure 3 ;

[0020] Figure 3 For the mixed heating oven embodiment of the utility model Figure 2 ;

[0021] Figure 4 For the rear view of the mixed heating oven embodiment of the utility model

[0022] Figure 5 For the air nozzle unit of the mixed heating oven embodiment of the utility model using electromagnetic heating

[0023] Figure 6 For the air nozzle unit of the mixed heating oven embodiment of the utility model

[0024] Figure 7 For the air nozzle unit of the mixed heating oven embodiment of the utility model using infrared heating

[0025] Figure 8 For the air nozzle unit of the mixed heating oven embodiment of the utility model

[0026] Figure 9 Figure 1 is a schematic view of a heating unit of the mixed heating oven according to the present application.

[0027] Reference signs:

[0028] 1 - oven body; 11 - conveying channel; 12 - air duct; 121 - air outlet; 122 - fan; 123 - heat exchanger; 124 - filter; 2 - air nozzle unit; 21 - shell; 211 - air inlet; 212 - air outlet; 213 - heat dissipation hole; 22 - uniform plate; 3 - heating unit; 31 - electromagnetic heating plate; 32 - air deflector; 321 - cavity; 322 - clamping groove; 33 - infrared tube; 34 - transmission plate; 35 - reflection plate; 36 - adjusting bracket; 361 - first connecting hole; 37 - fixing bracket; 371 - second connecting hole; 38 - dismounting handle; 4 - pole piece. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer" and similar expressions used in the present specification are for illustrative purposes only. In the description of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating relative importance, or implying that the indicated technical features are of a certain number. Therefore, unless otherwise specified, the features with "first", "second" can explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "comprise" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof can be present or added.

[0030] Furthermore, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal connection of two elements. All technical and scientific terms used in the specification have the same meaning as understood by the person skilled in the art belonging to the technical field of the utility model. The terms used in the specification of the utility model are only for the purpose of describing specific embodiments and are not applicable to limit the utility model. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0031] In addition, the technical features involved in different embodiments of the utility model described below can be combined with each other as long as there is no conflict between them.

[0032] As shown in Figures 1-9 , it is an embodiment schematic diagram of the mixed heating oven provided by the utility model.

[0033] Please refer to Figures 1-9 , the example is used for drying after double-sided coating of the battery pole piece, specifically comprising an oven body 1, the oven body 1 is provided with a conveying channel 11 and a blast nozzle unit 2, the conveying channel 11 is a pole piece 4 conveying interval, the blast nozzle unit 2 is used to blow hot air to keep the pole piece 4 in the conveying channel 11 suspended, and the pole piece 4 is dried at the same time.

[0034] The blast nozzle unit 2 is connected with the oven body 1, the blast nozzle unit 2 is distributed on the upper side and the lower side of the conveying channel 11, the blast nozzle unit 2 on the upper side of the conveying channel 11 is staggered with the blast nozzle unit 2 on the lower side of the conveying channel 11, and the blast nozzle units 2 on the upper side and the lower side are uniformly distributed, the interval between adjacent ones is the same, so that the pole piece 4 in the conveying channel 11 is uniformly stressed, and deviation in the conveying process is avoided.

[0035] A plurality of heating units 3 are arranged inside the oven body 1, the heating units 3 are distributed on the upper side and the lower side of the conveying channel 11, and the heating units 3 heat the pole piece 4 through electromagnetic heating or infrared heating. The pole piece 4 is assisted by the heating units 3 to accelerate drying and improve efficiency.

[0036] In an embodiment, as shown in Figures 5-8 , the heating unit 3 is arranged inside the blast nozzle unit 2. The heating unit 3 and the blast nozzle unit 2 are arranged in an integrated structure, which can reduce the interference of the air suspension of the conveying channel 11.

[0037] Further, the air nozzle unit 2 comprises a housing 21, which is a long square cuboid structure, the length of the housing 21 is adapted to the width of the conveying channel 11, the lower end of the housing 21 is an air inlet 211, and the upper end of the housing 21 is an air outlet 212. The air inlet 211 is in communication with the air duct 12, and the air outlet 212 faces the conveying channel 11. A uniform plate 22 is arranged inside the housing 21. The hot air conveyed by the air duct 12 enters the conveying channel 11 through the air inlet 211, the uniform plate 22 and the air outlet 212. The heating unit 3 is arranged at the air outlet 212.

[0038] Specifically, as shown in Figures 5-6 when the heating unit 3 adopts an electromagnetic heating mode, the heating unit 3 comprises an electromagnetic heating plate 31 and an air guide plate 32. The air guide plate 32 is arranged at the air outlet 212 and is fixedly connected with the housing 21. The length of the air guide plate 32 is adapted to the length of the housing 21. The air guide plate 32 is recessed towards the inside of the housing 21 to form a cavity 321 for accommodating the electromagnetic heating plate 31. A clamping groove 322 is arranged at the opening of the cavity 321 to clamp the electromagnetic heating plate 31. The side surface of the air guide plate 32 has a gap with the side surface of the housing 21 for the hot air to pass through. The opening of the cavity 321 is located inside the housing 21 to avoid interfering with the airflow in the conveying channel.

[0039] As shown in Figures 7-8 when the heating unit 3 adopts an infrared heating mode, the heating unit 3 comprises an infrared tube 33, a transmission plate 34 and a reflection plate 35. The reflection plate 35 is arranged at the air outlet 212 and is fixedly connected with the housing 21. The length of the reflection plate 35 is adapted to the length of the housing 21. The reflection plate 35 is recessed towards the inside of the housing 21 to form a cavity 321 for reflecting the infrared light emitted by the infrared tube 33. The transmission plate 34 is arranged at the opening of the cavity 321, and the infrared tube 33 is arranged inside the cavity 321. The transmission plate 34 is made of transparent material for the infrared light to pass through. The side surface of the reflection plate 35 has a gap with the side surface of the housing 21 for the hot air to pass through. The opening of the cavity 321 is located inside the housing 21 to avoid interfering with the airflow in the conveying channel.

[0040] Further, the side surface of the housing 21 is provided with a heat dissipation hole 213 for heat dissipation of the internal heating unit 3 to avoid excessive temperature in the air nozzle unit 2.

[0041] In an embodiment, as shown in Figure 2 the heating unit 3 is arranged between adjacent air nozzle units 2, and the heating unit 3 is arranged separately from the air nozzle unit 2. The heating unit 3 is connected with the oven body 1, and the heating units on the upper side of the conveying channel 11 are arranged alternately with the heating units on the lower side of the conveying channel.

[0042] Specifically, as shown in Figure 9As shown, the heating unit 3 comprises an adjusting support 36, a fixing support 37, an electromagnetic heating plate 31 and a dismounting handle 38. The fixing support 37 is connected with the oven body 1. The fixing support 37 and the adjusting support 36 are adapted to the width of the conveying channel 11, the electromagnetic heating plate 31 is arranged on the adjusting support 36, the adjusting support 36 is movably connected with the fixing support 37, the height of the adjusting support 36 is adjusted by adjusting the relative position of the adjusting support 36 and the fixing support 37, and then the height position of the electromagnetic heating plate 31 is adjusted. The dismounting handle 38 is arranged on the short end side of the adjusting support 36, and the dismounting handle 38 facilitates moving the adjusting support 36.

[0043] Further, the adjusting support 36 is a concave structure, and the bottom of the adjusting support 36 is provided with the electromagnetic heating plate 31. The long end side of the adjusting support 36 is provided with a first connecting hole 361, and the fixing support 37 is provided with a second connecting hole 371 corresponding to the first connecting hole 361. The first connecting hole 361 and the second connecting hole 371 are connected through a locking piece. The first connecting hole 361 and the second connecting hole 371 are long strips, and the height of the adjusting support 36 is adjusted by adjusting the positions of the first connecting hole 361 and the second connecting hole 371 and then fixed through the locking piece. The locking piece can be a screw.

[0044] In an embodiment, as shown in the drawings, Figures 1-4 As shown, the oven body 1 comprises an air duct 12, the air duct 12 is communicated with the air nozzle unit 2, and the air duct 12 is communicated with the outside of the oven body 1 through an air outlet 121. A fan 122, a heat exchanger 123 and a filter 124 are sequentially arranged in the air duct 12, the fan 122 is used for driving air, the heat exchanger 123 is used for heating air, and the filter 124 is used for filtering air. The fan 122 drives air to enter the air duct 12 from the air outlet 121, and then the air sequentially passes through the heat exchanger 123 and the filter 124 and is conveyed to the air nozzle unit 2.

[0045] In summary, the embodiment of the utility model provides, through the air nozzle unit, the suspension of the pole piece when moving in the conveying channel is realized, meanwhile, the hot air blown by the air nozzle unit is used for drying the pole piece, the heating unit is used for heating and drying the pole piece through the electromagnetic heating or infrared heating, the function of auxiliary drying is realized, the drying of the pole piece is accelerated, and the drying efficiency is improved.

[0046] The above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto; under the idea of the present application, the technical features in the above examples or different examples can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for simplicity; although the present application has been described in detail with reference to the foregoing examples, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A hybrid heating oven characterized by, The application relates to a baking oven body, which is internally provided with a conveying channel and a tuyere unit, the tuyere unit is connected with the baking oven body, the tuyere units are distributed on the upper side and the lower side of the conveying channel, the tuyere units on the upper side of the conveying channel are staggered with the tuyere units on the lower side of the conveying channel; a plurality of heating units are arranged in the baking oven body, the heating units are distributed on the upper side and the lower side of the conveying channel, and the heating units heat the pole piece through electromagnetic heating or infrared heating.

2. The hybrid heat oven of claim 1, wherein, The heating unit is arranged in the tuyere unit.

3. The hybrid heat oven of claim 2, wherein, The tuyere unit comprises a shell, the shell is a long strip square structure, the length of the shell is adapted to the width of the conveying channel, the lower end of the shell is an air inlet, the upper end of the shell is an air outlet, the air inlet is communicated with an air duct, the air outlet faces the conveying channel, and a uniform plate is arranged in the shell.

4. The hybrid heat oven of claim 3, wherein, The heating unit comprises an electromagnetic heating plate and a wind guide plate, the wind guide plate is arranged at the air outlet, the wind guide plate is fixedly connected with the shell, the length of the wind guide plate is adapted to the length of the shell, the wind guide plate is recessed towards the inside of the shell to form a cavity, the electromagnetic heating plate is clamped in the cavity through a clamping groove arranged at the opening of the cavity, and a gap is formed between the side surface of the wind guide plate and the side surface of the shell.

5. The hybrid heat oven of claim 3, wherein, The heating unit comprises an infrared tube, a transmission plate and a reflection plate, the reflection plate is arranged at the air outlet, the reflection plate is fixedly connected with the shell, the length of the reflection plate is adapted to the length of the shell, the reflection plate is recessed towards the inside of the shell to form a cavity, the transmission plate is arranged at the opening of the cavity, the infrared tube is arranged in the cavity, and a gap is formed between the side surface of the reflection plate and the side surface of the shell.

6. The hybrid heat oven of claim 4 or 5, wherein, The side surface of the shell is provided with heat dissipation holes.

7. The hybrid heat oven of claim 1, wherein, The heating unit is arranged between adjacent tuyere units, the heating unit is connected with the baking oven body, and the heating units on the upper side of the conveying channel are staggered with the heating units on the lower side of the conveying channel.

8. The hybrid heat oven of claim 7, wherein, The heating unit comprises an adjusting support, a fixing support, an electromagnetic heating plate and a dismounting handle. The fixing support is connected with the baking oven body, the fixing support and the adjusting support are adapted to the width of the conveying channel, the electromagnetic heating plate is arranged on the adjusting support, the adjusting support is movably connected with the fixing support, and the dismounting handle is arranged on the side surface of the short end of the adjusting support.

9. The hybrid heat oven of claim 8, wherein, The adjusting support is a concave structure, the electromagnetic heating plate is arranged on the bottom of the adjusting support, a first connecting hole is arranged on the side surface of the long end of the adjusting support, the fixing support is provided with a second connecting hole corresponding to the first connecting hole, and the first connecting hole and the second connecting hole are connected through a locking member.

10. The hybrid heat oven of claim 1, wherein, The baking oven body comprises an air duct, the air duct is communicated with the tuyere unit, the air duct is communicated with the outside of the baking oven body through an air outlet, a fan, a heat exchanger and a filter are sequentially arranged in the air duct, the fan drives air to enter the air duct from the air outlet, and then the air sequentially passes through the heat exchanger and the filter to be conveyed to the tuyere unit.

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