Lithium battery drying furnace
By employing a single circulating fan and a dual exhaust chamber structure in the lithium battery drying oven, the problems of high equipment cost and complex assembly in the prior art are solved, achieving cost savings and simplified assembly.
Patent Information
- Application Number
- CN202423210226.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing lithium battery drying ovens require two sets of air supply devices, which increases the cost of equipment manufacturing and makes manufacturing and assembly complex and cumbersome.
Design a lithium battery drying oven, which uses a single circulating fan to set up two air outlet chambers and channels in the oven body. The air is heated by a heating device and then circulated for drying. One circulating fan provides the air source for the two air outlet chambers, which simplifies the structure and saves costs.
This technology enables the use of a single circulating fan to meet drying requirements, reducing equipment costs and simplifying the manufacturing and assembly process.
Smart Images
Figure CN223596371U_ABST
Abstract
Description
Technical Field
[0001] This utility model generally relates to the field of lithium battery technology. More specifically, this utility model relates to a lithium battery drying oven. Background Technology
[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as positive / negative electrode materials and a non-aqueous electrolyte solution. They have advantages such as high energy density, long cycle life, and low self-discharge rate. In China, lithium-ion battery technology is mainly used in the new energy vehicle industry and the energy storage industry.
[0003] Existing lithium battery drying processes mostly employ vacuum baking or air circulation processes to remove moisture from lithium batteries. Among them, the air circulation process removes moisture from the surface of lithium batteries by forcibly circulating inert gas in the drying oven, achieving a rapid baking effect. The drying oven used in the air circulation process generally has two air outlets, which often requires two sets of air supply devices, increasing not only the equipment manufacturing cost but also making the equipment manufacturing and assembly process complex and cumbersome.
[0004] In view of this, the present invention provides a lithium battery drying oven to solve the above problems. Utility Model Content
[0005] In order to at least solve one or more of the technical problems mentioned in the background art, the present invention proposes a lithium battery drying oven.
[0006] Therefore, the present invention provides the following technical solution.
[0007] This utility model discloses a lithium battery drying oven, comprising: an oven body, a first air outlet cavity and a second air outlet cavity respectively provided on the left and right sides of the oven body, the air outlet directions of the first air outlet cavity and the second air outlet cavity respectively facing the center of the oven body, a circulating fan provided on the back of the oven body, the circulating fan having a first outlet, a second outlet and a return air inlet, the first outlet being connected to the first air outlet cavity through a first channel, the second outlet being connected to the second air outlet cavity through a second channel, heating devices being provided in the first channel and the second channel, the air in the oven body being discharged through the first air outlet cavity and the second air outlet cavity and then flowing back to the return air inlet, the center of the oven body being used to place the lithium battery to be dried, and a sealing door being provided on the front of the oven body to seal the oven body.
[0008] Preferably, the first outlet and the second outlet are arranged in a centrally symmetrical manner, with the center of symmetry being the central axis of the fan blade shaft of the circulating fan.
[0009] Preferably, the heating device includes multiple sets of heating coils, each set of heating coils is flat, the width of each set of heating coils is equivalent to the width of the first channel and the second channel, the height of each set of heating coils is lower than the height of the first channel and the second channel, the multiple sets of heating coils are staggered from high to low along the direction of air circulation, the top height of the highest heating coil is equivalent to the top height of the first channel and the second channel, and the bottom height of the lowest heating coil is equivalent to the bottom height of the first channel and the second channel.
[0010] Preferably, both the first and second air outlet chambers have linear air outlets, and the air outlets of the two linear air outlets are arranged facing each other and are respectively directed toward the center of the furnace body.
[0011] Preferably, the left and right sides of the sealing door are respectively hinged to the first end of a drive lever and the first end of an auxiliary arm. The other end of each drive lever is hinged to the telescopic end of a cylinder. The fixed end of the cylinder is hinged to a horizontal moving frame. The other end of each auxiliary arm is hinged to the horizontal moving frame. The fulcrum of the drive lever is rotatably set on the horizontal moving frame. Both horizontal moving frames located on the left and right sides of the furnace body can move horizontally on the side of the furnace body.
[0012] Preferably, the two horizontally movable frames are respectively fixedly connected to the telescopic end of a horizontally set cylinder, and the fixed end of the horizontally set cylinder is fixedly connected to the furnace body.
[0013] Preferably, the sealing door is provided with a plurality of protrusions at equal intervals above and below, and also includes a plurality of U-shaped locking clips for locking the protrusions, so that the sealing door is locked when the protrusions are located inside the U-shaped locking clips.
[0014] Preferably, the U-shaped locking clips located above and below the sealing door are fixedly mounted on the first crossbar and the second crossbar, respectively. The first crossbar and the second crossbar can move in the horizontal direction to bring the U-shaped locking clips closer to or away from the protrusion.
[0015] Preferably, it further includes an adjusting shim for adjusting the gap between the protrusion and the U-shaped locking clip when the protrusion is located inside the U-shaped locking clip.
[0016] Preferably, a universal bearing is provided at the fulcrum of the two drive levers and the rotatable connection of the two horizontal moving frames, and the two universal bearings are connected by a rotating shaft.
[0017] The technical solution provided in this application may include the following beneficial effects:
[0018] By utilizing the device described above and in several of the embodiments of this utility model, that is, by setting a circulating fan with two air outlets on the back of the furnace body, the air that is forced to circulate in the furnace body re-enters the circulating fan through the return air inlet and is discharged through its two air outlets, thereby realizing the use of only one circulating fan to provide circulating air for the first and second channels, thereby providing circulating air for the first and second air outlet chambers, thus saving one circulating fan for a set of air-circulating drying ovens, saving manufacturing costs, simplifying the structure of the drying oven, and improving the assembly efficiency of the drying oven manufacturing process. Attached Figure Description
[0019] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts wherein:
[0020] Figure 1 This is a perspective view showing one embodiment of the present invention;
[0021] Figure 2 It is shown Figure 1 Enlarged view of point A;
[0022] Figure 3 This is a perspective view showing another embodiment of the present invention;
[0023] Figure 4 It is shown Figure 3 Enlarged view of point B;
[0024] Explanation of reference numerals in the attached drawings: 10. Furnace body; 11. First air outlet chamber; 12. Second air outlet chamber; 13. Circulating fan; 14. First channel; 15. Second channel; 16. Sealing door; 31. Heating coil; 51. Drive lever; 52. Auxiliary arm; 53. Horizontal moving frame; 71. Protrusion; 72. U-shaped locking clamp; 81. First crossbar; 82. Second crossbar. Detailed Implementation
[0025] Embodiments will now be described with reference to the accompanying drawings. It should be understood that, for the sake of simplicity and clarity, reference numerals may be repeated in the drawings to indicate corresponding or similar elements where deemed appropriate. Furthermore, numerous specific details are set forth in this invention to provide a thorough understanding of the embodiments described herein. However, those skilled in the art will understand that the embodiments described herein can be practiced without these specific details. In other instances, well-known methods, processes, and components have not been described in detail so as not to obscure the embodiments described herein. Moreover, this description should not be construed as limiting the scope of the embodiments described herein.
[0026] like Figures 1 to 4 As shown, according to one embodiment of the present invention, a lithium battery drying oven is provided, comprising: an oven body 10, wherein a first air outlet chamber 11 and a second air outlet chamber 12 are respectively provided on the left and right sides of the oven body 10, the air outlet directions of the first air outlet chamber 11 and the second air outlet chamber 12 are respectively facing the center of the oven body 10, a circulating fan 13 is provided on the back of the oven body 10, the circulating fan 13 has a first outlet, a second outlet and a return air inlet, the first outlet is connected to the first air outlet chamber 11 through a first channel 14, the second outlet is connected to the second air outlet chamber 12 through a second channel 15, a heating device is provided in the first channel 14 and the second channel 15, the air in the oven body 10 is discharged through the first air outlet chamber 11 and the second air outlet chamber 12 and then flows back to the return air inlet, the center of the oven body 10 is used to place the lithium battery to be dried, and a sealing door 16 is provided on the front of the oven body 10 to seal the oven body 10.
[0027] In one embodiment, the first outlet and the second outlet are centrally symmetrically arranged, with the center of symmetry being the central axis of the fan blade shaft of the circulating fan 13. That is, after the first outlet is rotated 180° around this central axis, it coincides with the location of the second outlet. It can be understood that in this embodiment, the first outlet and the second outlet are respectively located on both sides of the circulating fan 13.
[0028] The purpose of setting up the first channel 14 and the second channel 15 is to heat the forced circulation air first, and then reach the first air outlet cavity 11 and the second air outlet cavity 12 to blow the lithium battery to be dried.
[0029] The forced-circulation air is heated as it passes through the first channel 14 and the second channel 15 by installing heating devices in each of the two channels. Specifically, the heating devices may include multiple sets of heating coils 31, each set of heating coils 31 being flat. The width of each set of heating coils 31 is approximately equal to the width of the first channel 14 and the second channel 15, and the height of each set of heating coils 31 is lower than the height of the first channel 14 and the second channel 15. The multiple sets of heating coils 31 are staggered from high to low along the direction of air circulation, with the top height of the highest heating coil 31 being approximately equal to the top height of the first channel 14 and the second channel 15, and the bottom height of the lowest heating coil 31 being approximately equal to the bottom height of the first channel 14 and the second channel 15. Multiple sets of heating coils 31 are staggered from high to low along the direction of air circulation until they roughly cover the inner cross-section of the first channel 14 and the second channel 15. In this way, when the air blown out from the first outlet and the second outlet of the circulating fan 13 passes through the inner cross-section of the first channel 14 and the second channel 15, as much air as possible can come into contact with the heating coils 31 to ensure the heating effect.
[0030] In another embodiment, both the first air outlet cavity 11 and the second air outlet cavity 12 have linear air outlets, and the air outlets are arranged facing each other and respectively toward the center of the furnace body 10. The linear air outlets have good air outlet performance and can improve the temperature uniformity inside the furnace body 10.
[0031] In some embodiments, the left and right sides of the sealing door 16 are respectively hinged to the first end of a drive lever 51 and the first end of an auxiliary arm 52. The other end of each drive lever 51 is hinged to the telescopic end of a cylinder, and the fixed end of the cylinder is hinged to a horizontal moving frame 53. The other end of each auxiliary arm 52 is hinged to the horizontal moving frame 53. The fulcrum of the drive lever 51 is rotatably mounted on the horizontal moving frame 53. Both horizontal moving frames 53 located on the left and right sides of the furnace body 10 can move horizontally along the side of the furnace body 10. Specifically, the two horizontal moving frames 53 are respectively fixedly connected to the telescopic end of a horizontally arranged cylinder, and the fixed end of the horizontally arranged cylinder is fixedly connected to the furnace body 10.
[0032] The sealing door 16 and its associated structures described above are first mounted on two horizontal moving frames 53, which are then connected to the furnace body 10 via a horizontally positioned cylinder. That is, when opening or closing the sealing door 16, the sealing door 16 and its associated structures are first moved forward or backward as a whole by the horizontally positioned cylinder, and then the sealing door 16 is opened or closed by controlling the drive lever 51. By first controlling the overall translation of the sealing door 16 and its associated structures, and then controlling the opening and closing of the sealing door 16, interference and collision between the associated structures of the sealing door 16 and the furnace body 10 can be effectively avoided.
[0033] In some embodiments, a plurality of protrusions 71 are provided at equal intervals above and below the sealing door 16, and a plurality of U-shaped locking clips 72 are also provided for locking the protrusions 71, so that the sealing door 16 is locked when the protrusions 71 are located inside the U-shaped locking clips 72.
[0034] In the above embodiment, U-shaped locking clips 72 located above and below the sealing door 16 are respectively fixedly mounted on the first crossbar 81 and the second crossbar 82. The first crossbar 81 and the second crossbar 82 can move horizontally to move the U-shaped locking clips 72 closer to or further away from the protrusion 71. The movement of the first crossbar 81 and the second crossbar 82 can be controlled by a cylinder to move them horizontally.
[0035] In practical applications, considering assembly and design errors, an adjustment shim can be provided on the side of the protrusion 71 to adjust the gap between the protrusion 71 and the U-shaped locking clip 72 when the protrusion 71 is located inside the U-shaped locking clip 72.
[0036] In some other embodiments, considering the weight of the sealing door 16, the fulcrum at the connection between the drive lever 51 and the horizontal moving frame 53 is prone to breakage due to the large load. Therefore, a universal bearing can be provided at the fulcrum of the two drive levers 51 and the rotational connection of the two horizontal moving frames 53, and the two universal bearings are connected by a rotating shaft.
[0037] It should be understood that the possible terms "first" or "second," etc., in the claims, specification, and drawings disclosed in this utility model are used to distinguish different objects, rather than to describe a specific order. The terms "comprising" and "including" used in the specification and claims disclosed in this utility model indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.
[0038] It should also be understood that the terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of the disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.
[0039] Although the embodiments of this utility model are described above, the content is merely an example adopted for the purpose of facilitating understanding of this utility model and is not intended to limit the scope and application scenarios of this utility model. Any person skilled in the art can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model; however, the patent protection scope of this utility model shall still be determined by the scope defined in the appended claims.
Claims
1. A lithium battery drying oven, characterized in that, include: A furnace body (10) has a first air outlet chamber (11) and a second air outlet chamber (12) on its left and right sides, respectively. The air outlet directions of the first air outlet chamber (11) and the second air outlet chamber (12) are respectively oriented towards the center of the furnace body (10). A circulating fan (13) is provided on the back of the furnace body (10). The circulating fan (13) has a first outlet, a second outlet, and a return air inlet. The first outlet and the first air outlet chamber (11) are connected by a first channel (1). 4) Connection: The second outlet and the second air outlet cavity (12) are connected by a second channel (15). The first channel (14) and the second channel (15) are equipped with heating devices. The air in the furnace body (10) is discharged through the first air outlet cavity (11) and the second air outlet cavity (12) and then flows back to the return air port. The center of the furnace body (10) is used to place the lithium battery to be dried. The front of the furnace body (10) is provided with a sealing door (16) to seal the furnace body (10).
2. The lithium battery drying oven according to claim 1, characterized in that, The first outlet and the second outlet are arranged in a centrally symmetrical manner, with the center of symmetry being the central axis of the fan blade shaft of the circulating fan (13).
3. A lithium battery drying oven according to claim 1, characterized in that, The heating device includes multiple sets of heating coils (31), each set of heating coils (31) is flat, the width of each set of heating coils (31) is equivalent to the width of the first channel (14) and the second channel (15), the height of each set of heating coils (31) is lower than the height of the first channel (14) and the second channel (15), the multiple sets of heating coils (31) are staggered from high to low along the direction of air circulation, the top height of the highest heating coil (31) is equivalent to the top height of the first channel (14) and the second channel (15), and the bottom height of the lowest heating coil (31) is equivalent to the bottom height of the first channel (14) and the second channel (15).
4. A lithium battery drying oven according to claim 1, characterized in that, The first air outlet cavity (11) and the second air outlet cavity (12) both have linear air outlets, and the air outlets of the two linear air outlets are arranged in opposite directions and are respectively directed toward the center of the furnace body (10).
5. A lithium battery drying oven according to claim 1, characterized in that, The left and right sides of the sealing door (16) are respectively hinged to the first end of a drive lever (51) and the first end of an auxiliary arm (52). The other end of each drive lever (51) is hinged to the telescopic end of a cylinder. The fixed end of the cylinder is hinged to a horizontal moving frame (53). The other end of each auxiliary arm (52) is hinged to the horizontal moving frame (53). The fulcrum of the drive lever (51) is rotatably set on the horizontal moving frame (53). The two horizontal moving frames (53) located on the left and right sides of the furnace body (10) can move horizontally on the side of the furnace body (10).
6. A lithium battery drying oven according to claim 5, characterized in that, Two horizontal moving frames (53) are respectively fixedly connected to the telescopic end of a horizontally set cylinder, and the fixed end of the horizontally set cylinder is fixedly connected to the furnace body (10).
7. A lithium battery drying oven according to claim 6, characterized in that, The sealing door (16) is provided with a plurality of protrusions (71) at equal intervals above and below, and also includes a plurality of U-shaped locking clips (72) for locking the protrusions (71) so that the sealing door (16) is locked when the protrusions (71) are located inside the U-shaped locking clips (72).
8. A lithium battery drying oven according to claim 7, characterized in that, The U-shaped locking clips (72) located above and below the sealing door (16) are fixedly mounted on the first crossbar (81) and the second crossbar (82), respectively. The first crossbar (81) and the second crossbar (82) can move in the horizontal direction to make the U-shaped locking clips (72) move closer to or away from the protrusion (71).
9. A lithium battery drying oven according to claim 8, characterized in that, It also includes an adjusting shim for adjusting the gap between the protrusion (71) and the U-shaped locking clip (72) when the protrusion (71) is located inside the U-shaped locking clip (72).
10. A lithium battery drying oven according to claim 5, characterized in that, A universal bearing is provided at the fulcrum of the two drive levers (51) and the rotational connection of the two horizontal moving frames (53), and the two universal bearings are connected by a rotating shaft.