Three-cavity drying furnace
By designing a three-chamber drying oven and adopting an independent chamber door opening method, the problem of limited chamber doors in multi-layer drying ovens was solved, achieving structural simplification, cost reduction, and improved production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN DINGNENG ELECTRONICS TECH
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-19
AI Technical Summary
Existing multi-layer drying ovens have a large number of chambers, resulting in complex chamber door structures and high costs. Furthermore, the opening of the top chamber door is limited by the facilities above or the height of the workshop.
Design a three-chamber drying oven. The bottom chamber door opens upward, the top chamber door opens downward, and the middle chamber door can open upward or downward. The opening and closing components of each chamber door are independent, driven by a cylinder, and opened and closed by translation.
This design enables smooth opening and closing of all cavity doors, avoids restricted opening of the top cavity door, simplifies the structure, reduces costs, and improves production efficiency.
Smart Images
Figure CN224262152U_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 three-chamber drying oven. Background Technology
[0002] In lithium battery production, moisture content has a significant impact on battery performance, affecting indicators such as safety, consistency, capacity, voltage, and internal resistance. The application of lithium battery drying ovens minimizes moisture content, improving product quality and performance, and ensuring safety and reliability. Lithium battery drying ovens are of paramount importance in lithium battery production. Lithium battery drying ovens can be classified according to different criteria. For example, based on shape, they can be divided into single-layer, multi-layer, and double-door structures. Single-layer ovens are simple in structure and suitable for small-scale experiments or production scenarios with limited space requirements, typically processing a small amount of material at a time. Double-door ovens facilitate material handling and are generally installed on the wall between the drying and filling workshops, improving material flow efficiency and reducing the possibility of moisture re-entry during transport from the vacuum oven to another workshop. Multi-layer ovens feature a multi-chamber structure with different chambers arranged vertically, maximizing space utilization, increasing the amount of material processed per batch, and improving production efficiency, making them suitable for medium- to large-scale production scenarios.
[0003] Existing multi-layered drying ovens, due to their numerous chambers, require a large number of chamber doors and corresponding control mechanisms for opening and closing them, resulting in a complex structure and high cost. Furthermore, the bottom chamber doors in existing multi-layered drying ovens cannot open downwards due to ground level constraints. To maintain consistency in door opening direction and simplify the design, they often adopt a uniform upward-opening door design. However, this design often leads to the top chamber door being affected by other facilities located above the drying oven or the floor height of the workshop, especially in pre-planned production workshops where the drying oven is relatively tall and other facilities are often located above it, thus restricting the opening of the top chamber door.
[0004] In view of this, there is an urgent need to provide a three-chamber drying oven to solve the problem. Utility Model Content
[0005] To at least solve one or more of the technical problems mentioned in the background section, this utility model proposes a three-chamber drying oven.
[0006] Therefore, the present invention provides the following technical solution.
[0007] This utility model discloses a three-chamber drying oven, including an oven body with three chambers arranged vertically. Each chamber has multiple compartments for accommodating fixtures. The oven body also includes a bottom chamber door in the bottom chamber, a top chamber door in the top chamber, and an intermediate chamber door between the bottom and top chamber doors. The bottom chamber door opens upwards, the top chamber door opens downwards, and the intermediate chamber door opens either upwards or downwards. The opening and closing components of each chamber door are independent of the opening and closing components of any other chamber door.
[0008] Preferably, any cavity door is opened and closed by translation.
[0009] Preferably, the opening and closing assembly of the bottom cavity door includes a first drive unit, a first connecting rod, and a swing rod. The two ends of the first connecting rod are respectively hinged to the side plate of the furnace body and the bottom cavity door. The two ends of the swing rod are respectively hinged to the side plate and the bottom cavity door. The fixed end of the first drive unit is hinged to the side plate of the furnace body. The hinge point between the movable end of the first drive unit and the swing rod is located between the two ends of the swing rod and near one of the ends. The opening and closing assembly of the top cavity door includes a second drive unit, a second connecting rod, and a lever. The two ends of the second connecting rod are respectively hinged to the side plate of the furnace body and the top cavity door. The fixed end of the second drive unit is hinged to the side plate of the furnace body. The movable end of the second drive unit is hinged to one end of the lever. The other end of the lever is hinged to the top cavity door. The hinge point between the lever and the side plate of the furnace body is located between the two ends of the lever and near the movable end of the second drive unit.
[0010] Preferably, when the intermediate cavity door opens upward, the opening and closing assembly of the intermediate cavity door and the opening and closing assembly of the bottom cavity door have the same structure; when the intermediate cavity door opens downward, the opening and closing assembly of the intermediate cavity door and the opening and closing assembly of the top cavity door have the same structure; when any one of the cavity doors is opened, the other cavity doors remain closed.
[0011] Preferably, both the first drive unit and the second drive unit are cylinders.
[0012] Preferably, each of the three cavities is connected to a vacuum breaking pipeline, and the three vacuum breaking pipelines are used to connect to the main pipeline, which is used to supply gas to the cavities. An automatic valve is provided between the vacuum breaking pipeline and the main pipeline.
[0013] The technical solution provided in this application may include the following beneficial effects:
[0014] The multi-layered drying oven of this utility model features a bottom-level cavity door that opens upwards and closes to its original position, unrestricted by a horizontal ground surface. The top-level cavity door opens downwards and closes to its original position, also unaffected by other facilities above the drying oven or the height of the workshop floor. This is particularly advantageous in pre-planned production workshops where the space above the drying oven location often contains other facilities, and given the oven's height due to its multi-layered structure, the restriction on the opening of the top-level cavity door is avoided. Furthermore, the intermediate cavity doors located between the bottom and top-level doors never exceed the highest or lowest point of the drying oven when opened or closed. Therefore, the intermediate cavity doors can open upwards or downwards without being affected by the ground level at the lowest point or other facilities at the highest point. Attached Figure Description
[0015] 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:
[0016] Figure 1 This is a schematic diagram illustrating the structure of one embodiment of the present invention;
[0017] Figure 2 This is a schematic diagram showing the bottom cavity door of an embodiment of the present invention in the open state;
[0018] Figure 3 This is a schematic diagram showing the topmost cavity door of an embodiment of the present invention in the open state;
[0019] Explanation of reference numerals in the attached drawings: 11. Bottom cavity door; 12. Top cavity door; 13. Middle cavity door; 21. First drive unit; 22. First connecting rod; 23. Swing rod; 24. Second drive unit; 25. Second connecting rod; 26. Lever. Detailed Implementation
[0020] 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.
[0021] According to one embodiment of the present invention, a three-chamber drying oven is provided, including an oven body having three chambers arranged vertically. Each chamber has multiple grid spaces for accommodating fixtures. The oven body also includes a bottom chamber door 11 located in the bottom chamber of the oven body, a top chamber door 12 located in the top chamber of the oven body, and an intermediate chamber door 13 located between the bottom chamber door 11 and the top chamber door 12. The bottom chamber door 11 opens upward, the top chamber door 12 opens downward, and the intermediate chamber door 13 opens upward or downward. The opening and closing components of each chamber door are independent of the opening and closing components of any other chamber door.
[0022] The furnace body mentioned above is existing technology and will not be described in detail here. The following embodiments mainly describe the opening and closing of the door of a multi-layered drying oven with three chambers arranged vertically.
[0023] In various embodiments of this utility model, any cavity door opens and closes by translation. The structure in which the bottom cavity door 11 opens downward and the top cavity door 12 opens by translation downward is achieved in the following way.
[0024] Specifically, such as Figures 1 to 3 As shown, the opening and closing assembly of the bottom cavity door 11 includes a first drive unit 21, a first connecting rod 22, and a swing rod 23. The two ends of the first connecting rod 22 are respectively hinged to the side plate of the furnace body and the bottom cavity door 11. The two ends of the swing rod 23 are respectively hinged to the side plate and the bottom cavity door 11. The fixed end of the first drive unit 21 is hinged to the side plate of the furnace body. The hinge point between the movable end of the first drive unit 21 and the swing rod 23 is located between the two ends of the swing rod 23 and near one of the ends. The top cavity door 1... The opening and closing assembly of 2 includes a second drive unit 24, a second connecting rod 25, and a lever 26. The two ends of the second connecting rod 25 are respectively hinged to the side plate of the furnace body and the top cavity door 12. The fixed end of the second drive unit 24 is hinged to the side plate of the furnace body, and the movable end of the second drive unit 24 is hinged to one end of the lever 26. The other end of the lever 26 is hinged to the top cavity door 12. The hinge point between the lever 26 and the side plate of the furnace body is located between the two ends of the lever 26 and close to the movable end of the second drive unit 24.
[0025] Obviously, it is easy to understand that the first drive unit 21 controls the swing of the lever 23 around its hinge point with the side plate to open and close the bottom cavity door 11, and when the bottom cavity door 11 is closed, the movable end of the first drive unit 21 is in a retracted state. The second drive unit 24 controls the swing of the lever 26 around its hinge point with the side plate to open and close the top cavity door 12, and when the top cavity door 12 is closed, the movable end of the second drive unit 24 is in an extended state.
[0026] Since the bottommost cavity door 11 opens smoothly upwards and resets when closed, the opening process is not limited by the horizontal ground; while the topmost cavity door 12 opens by sliding downwards and resets when closed, it is not affected by other facilities arranged above the drying oven or the height of the workshop floor, thus achieving smooth opening and closing of each cavity door, especially avoiding the problem of the top cavity door 12 being restricted by height.
[0027] In one embodiment, when the intermediate cavity door 13 is opened downwards, the opening and closing components of the intermediate cavity door 13 and the opening and closing components of the top cavity door 12 have the same structure. Figure 1 The structure shows that the opening and closing structure of the intermediate cavity door 13 is the same as that of the top cavity door 12, therefore Figure 1 The intermediate cavity door 13 shown opens downwards.
[0028] In another embodiment, when the intermediate cavity door 13 is opened upwards, the opening and closing assembly of the intermediate cavity door 13 has the same structure as the opening and closing assembly of the bottom cavity door 11. The opening and closing structure of the intermediate cavity door 13 in this embodiment is not shown in the accompanying drawings, but can be referred to... Figure 1 and Figure 2 The opening and closing structure of the middle and bottom cavity door 11.
[0029] Since the intermediate cavity door 13, located between the bottom cavity door 11 and the top cavity door 12, is opened or closed at a position that does not exceed the highest or lowest point of the drying oven, the opening direction of the intermediate cavity door 13 can be upward or downward, and the opening process is not affected by the ground at the lowest point or other facilities at the highest point.
[0030] When any one of the cavity doors is opened, the other cavity doors remain closed to prevent the opening and closing components of the various cavity doors from interfering with each other.
[0031] Both the first drive unit 21 and the second drive unit 24 mentioned above are cylinders.
[0032] As described above, none of the chamber doors in the various embodiments of this utility model are equipped with further locking structures, and the drying ovens in the aforementioned embodiments of this utility model are negative pressure drying ovens. In some embodiments, each of the three chambers is connected to a vacuum-breaking pipeline, and the three vacuum-breaking pipelines are used to communicate with the main pipeline, which is used to supply gas to the chambers. An automatic valve is provided between the vacuum-breaking pipeline and the main pipeline. After baking, the automatic valve opens to connect the vacuum-breaking pipeline with the main pipeline, thereby achieving vacuum breaking in all chambers.
[0033] 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.
[0034] 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.
[0035] 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 three-chamber drying oven, characterized in that, The furnace body includes three chambers arranged vertically, each chamber having multiple compartments for accommodating fixtures. It also includes a bottom chamber door (11) in the bottom chamber, a top chamber door (12) in the top chamber, and an intermediate chamber door (13) between the bottom chamber door (11) and the top chamber door (12). The bottom chamber door (11) opens upward, the top chamber door (12) opens downward, and the intermediate chamber door (13) opens upward or downward. The opening and closing components of each chamber door are independent of the opening and closing components of any other chamber door. The opening and closing assembly of the bottom cavity door (11) includes a first drive unit (21), a first connecting rod (22), and a swing rod (23). The two ends of the first connecting rod (22) are respectively hinged to the side plate of the furnace body and the bottom cavity door (11). The two ends of the swing rod (23) are respectively hinged to the side plate and the bottom cavity door (11). The fixed end of the first drive unit (21) is hinged to the side plate of the furnace body. The hinge point between the movable end of the first drive unit (21) and the swing rod (23) is located between the two ends of the swing rod (23) and close to one of the ends. The top cavity door (12) The opening and closing assembly includes a second drive unit (24), a second connecting rod (25), and a lever (26). The two ends of the second connecting rod (25) are respectively hinged to the side plate of the furnace body and the top cavity door (12). The fixed end of the second drive unit (24) is hinged to the side plate of the furnace body. The movable end of the second drive unit (24) is hinged to one end of the lever (26). The other end of the lever (26) is hinged to the top cavity door (12). The hinge point between the lever (26) and the side plate of the furnace body is located between the two ends of the lever (26) and close to the movable end of the second drive unit (24).
2. The three-chamber drying oven according to claim 1, characterized in that, Each cavity door opens and closes by sliding.
3. A three-chamber drying oven according to claim 1, characterized in that, When the intermediate cavity door (13) is opened upward, the opening and closing components of the intermediate cavity door (13) and the opening and closing components of the bottom cavity door (11) have the same structure; when the intermediate cavity door (13) is opened downward, the opening and closing components of the intermediate cavity door (13) and the opening and closing components of the top cavity door (12) have the same structure; when any one of the cavity doors is opened, the other cavity doors remain closed.
4. A three-chamber drying oven according to claim 3, characterized in that, Both the first drive unit (21) and the second drive unit (24) are cylinders.
5. A three-chamber drying oven according to claim 1, characterized in that, Each of the three chambers is connected to a vacuum breaking pipeline. The three vacuum breaking pipelines are used to connect to the main pipeline, which is used to supply gas to the chambers. An automatic valve is provided between the vacuum breaking pipeline and the main pipeline.