Z-shaped heating module and evaporation equipment
By employing a Z-shaped structure in the heating module, the graphite electrode is fixed at both ends to the conductive clamps, thus solving the problem of uneven force on the graphite electrode. This ensures the stability of the heating module and the uniformity of the coating thickness, thereby improving the finished product quality of the lithium-ion battery composite current collector.
Patent Information
- Application Number
- CN202422982955.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-04
Smart Images
Figure CN223522719U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electroplating technical field especially, relates to a kind of heating module and evaporation equipment, more specifically, for a kind of Z-shaped heating module and evaporation equipment. BACKGROUND
[0002] Composite current collector adopts "metal-polymer material-metal" three-layer composite structure, forms nanoscale metal on the surface of polymer PET / PP film by vacuum evaporation, magnetron sputtering and other ways, and then the metal layer is deposited and thickened to more than 1 μm by electroplating, replacing traditional aluminum foil and copper foil as battery positive and negative electrode materials, with the advantages of low cost, high safety, long life and high energy density, and has been more and more widely used in lithium-ion batteries.
[0003] In the prior art, the preparation process of the composite current collector involves an evaporation step, and the corresponding evaporation equipment includes a vacuum cavity, a unwinding assembly, an evaporation equipment and an electromagnetic heating roller and other components. An evaporation tank is provided in the evaporation equipment, and the evaporation tank includes a heating module. The heating module can heat a crucible provided at the top of the evaporation tank. The heating module includes a graphite electrode provided in the evaporation tank. The graphite electrode generates heat after being electrified. The graphite electrode is fixed and electrically connected by conductive clamps at both ends.
[0004] In the process of implementing the utility model, the inventors have found at least the following problems in the prior art:
[0005] The two ends of the graphite electrode in the existing heating module protrude from the side of the evaporation tank and are located on the same side of the evaporation tank, that is, the graphite electrode as a whole is in a U shape. Therefore, the two conductive clamps for fixing the graphite electrode are also located on the same side, which causes the other side of the entire heating module to be relatively suspended, resulting in uneven stress on the entire heating module. In a high-temperature working environment, the heating module is easily damaged. Therefore, how to improve the structure of the heating module to make the overall stress uniform and improve the working life is a problem to be solved. UTILITY MODEL CONTENTS
[0006] The utility model embodiment provides a Z-shaped heating module and evaporation equipment to solve the problem of uneven stress and easy damage of the existing heating module caused by the two conductive clamps connected to the same side of the graphite electrode.
[0007] To achieve the above purpose, on the one hand, the utility model embodiment provides a kind of Z-shaped heating module, including graphite electrode being arranged on the bottom surface of evaporation tank, graphite electrode includes vertical section, first connecting section being fixedly connected in the front end of vertical section, and second connecting section being fixedly connected in the rear end of vertical section, first connecting section is located in the side of vertical section, and second connecting section is located in the other side of vertical section;First connecting section is connected with first conducting clamp plate, and second connecting section is connected with second conducting clamp plate;First conducting clamp plate and second conducting clamp plate are electrically connected with power supply anode and power supply cathode respectively.
[0008] On the other hand, the utility model embodiment further provides a kind of evaporation equipment, including rack, as described above, Z-shaped heating module is arranged on the rack.
[0009] The above technical solution has the following beneficial effects:
[0010] In the technical solution, the two ends of graphite electrode are opposite, form a Z-shaped structure, and are fixed with conducting clamp plate and conductive respectively, which is conducive to realizing the uniform stress of graphite electrode, thereby ensuring the stability of the entire heating module, and avoiding the premature damage of the heating module.
[0011] In addition, the U-shaped structure of graphite electrode in the prior art also leads to the difference of evaporation liquid level in crucible due to uneven overall stress, which affects the uniformity of plating layer thickness, and after adopting the Z-shaped structure of the application, the stability of the entire heating module can be ensured, so that the plating layer thickness of finished product is uniform, and the product quality is effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not paying.
[0013] Figure 1 It is the structure schematic view of a kind of Z-shaped heating module of the utility model embodiment;
[0014] Figure 2 It is the structure schematic view of another view of a kind of Z-shaped heating module of the utility model embodiment;
[0015] Figure 3 It is the structure schematic view of a kind of evaporation equipment of the utility model embodiment;
[0016] REFERENCE NUMERALS
[0017] 1, first conductive clamping plate; 2, first connecting section; 3, vertical section; 4, crucible mounting hole; 5, second connecting section; 6, second conductive clamping plate; 7, heat insulation baffle; 8, motor. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0019] As shown in Figure 1 , Figure 2 Embodiments of the utility model provide a Z-shaped heating module, including the graphite electrode that horizontal setting in the evaporation groove bottom surface, the graphite electrode includes vertical section 3, the first connecting section 2 of fixed connection in the front end of vertical section 3 and the second connecting section 5 of fixed connection in the rear end of vertical section 3, the first connecting section 2 is located in the side of vertical section 3, and the second connecting section 5 is located in the other side of vertical section 3;The first connecting section 2 is connected with the first conductive clamping plate 1, and the second connecting section 5 is connected with the second conductive clamping plate 6;The first conductive clamping plate 1 and the second conductive clamping plate 6 are electrically connected with the positive electrode of power supply and the negative electrode of power supply respectively.
[0020] To solve the foregoing problems, in the technical scheme, the first connecting section 2 and the second connecting section 5 are arranged on the left and right sides of the vertical section 3, so that the first conductive clamping plate 1 and the second conductive clamping plate 6 can be connected with the graphite electrode from the left and right sides of the vertical section 3, that is, the two ends of the graphite electrode face opposite directions, so that the entire graphite electrode assumes a Z shape, when the first connecting section 2 and the second connecting section 5 are fixed with the corresponding conductive clamping plates, the left and right sides of the Z-shaped graphite electrode are subjected to force respectively, so that the entire Z-shaped heating module can be subjected to force uniformly, thereby avoiding the problem of uneven force on the two sides of the U-shaped graphite electrode in the prior art, avoiding premature damage of the graphite electrode, and also making the entire Z-shaped heating module more flat, thereby making the liquid level height of the evaporation liquid in the crucible consistent, and ensuring the uniformity of the plating layer thickness.
[0021] Further, in order to facilitate processing and facilitate the arrangement of other equipment, the first connecting section 2 and the second connecting section 5 are preferably designed as horizontal sections perpendicular to the vertical section 3.
[0022] Further, the connection between the first connecting section 2 and the vertical section 3 is provided with a circular arc, and the connection between the second connecting section 5 and the vertical section 3 is provided with a circular arc, that is, a circular arc transition is arranged at the corner where the two horizontal sections (the first connecting section 2 and the second connecting section 5) and the vertical section 3 meet, so as to avoid stress concentration and facilitate processing.
[0023] Further, a first opening is arranged at the position of the evaporation tank corresponding to the first connecting section 2, and the first connecting section 2 extends out of the evaporation tank through the first opening; a second opening is arranged at the position of the evaporation tank corresponding to the second connecting section 5, and the second connecting section 5 extends out of the evaporation tank through the second opening, so that when the outer ends of the first connecting section 2 and the second connecting section 5 are both led out of the evaporation tank, the conductive clamping plate is more convenient to install.
[0024] Further, a plurality of crucible mounting holes 4 are arranged on the graphite electrode. In the Z-shaped heating module, the graphite electrode generates heat to heat the crucible, and the crucible is used to fill the film material to be evaporated. Therefore, the graphite electrode (mainly the vertical section 3) is densely covered with a plurality of crucible mounting holes 4, which can well fit the crucible, so as to ensure the heating efficiency of the film material.
[0025] Further, an upper graphite carbon felt layer and an upper ceramic layer are sequentially arranged above the graphite electrode, and a lower ceramic layer and a lower graphite carbon felt layer are sequentially arranged below the graphite electrode, and the shapes of the upper graphite carbon felt layer, the upper ceramic layer, the lower ceramic layer and the lower graphite carbon felt layer are the same as the shape of the graphite electrode. The ceramic layer and the graphite carbon felt layer are mainly used for heat preservation and heat insulation to avoid damage to the evaporation tank and other supporting equipment caused by the heat generated by the graphite electrode. In addition, the upper ceramic layer and the upper graphite carbon felt layer also have the effect of preventing the evaporation film material, sputtering material or falling material from being left on the graphite electrode to cause damage to the graphite electrode. Meanwhile, through holes are arranged in the upper graphite carbon felt layer and the upper ceramic layer, and the positions of the through holes correspond to the positions of the crucible mounting holes 4, so that the crucible can be placed into the crucible mounting holes 4 from top to bottom.
[0026] Further, a white cotton layer is arranged below the lower graphite carbon felt layer, and the main function of the white cotton layer is to adjust the height of the graphite electrode.
[0027] As shown in Figure 3 The utility model discloses a Z-shaped heating module and an evaporation equipment, and the Z-shaped heating module comprises a graphite electrode, a first connecting section, a second connecting section and a vertical section.
[0028] Further, the evaporation device is provided with a heat insulation baffle 7, the rack is connected with a guide rail, the length direction of the guide rail is perpendicular to the length direction of the vertical section 3, and the heat insulation baffle 7 can move above the Z-shaped heating module along the guide rail. Since the top of the evaporation tank is open, the heating process is relatively long, therefore, the evaporation device can be provided with a movable heat insulation baffle 7, the main function of the heat insulation baffle 7 is to heat the Z-shaped heating module to a specified temperature, and the side wall and the bottom surface of the evaporation tank are provided with cooling pipelines.
[0029] Further, in order to improve the automation level, the rack is further provided with a chain transmission assembly and a motor 8, the chain transmission assembly comprises a driving sprocket, a driven sprocket and a chain simultaneously engaged with the driving sprocket and the driven sprocket, the moving direction of the chain is parallel to the length direction of the guide rail, the heat insulation baffle 7 is connected with the chain (for example, a clamping connection), and the power output end of the motor 8 is connected with the driving sprocket. In this way, under the instruction of a control system (not shown in the figure), the motor 8 drives the driving sprocket to rotate, so as to drive the chain engaged with the sprocket to move left and right, and then drive the heat insulation baffle 7 to move under control.
[0030] In the embodiment of the utility model, the two ends of the graphite electrode in the heating module are opposite to each other, forming a Z-shaped structure, which is conducive to realizing uniform stress of the graphite electrode, thereby ensuring the stability of the whole heating module, avoiding premature damage of the heating module, and ensuring the consistency of the evaporation liquid level in the crucible, so that the thickness of the plated layer of the finished product is uniform, and the product quality is effectively improved. In addition, by arranging the heat insulation baffle 7 on the evaporation device, the evaporation tank can be heat-insulated and protected during the heating process.
[0031] In the above detailed description, various features are combined together in a single embodiment to simplify the disclosure. Such disclosure method should not be interpreted as reflecting the intention that the embodiments of the claimed subject matter require more features than those clearly stated in each claim. On the contrary, as reflected in the appended claims, the utility model is in a state of less than all the features of the disclosed single embodiment. Therefore, the appended claims are hereby clearly incorporated into the detailed description, wherein each claim is independently a separate preferred embodiment of the utility model.
[0032] For any person skilled in the art, various modifications of the embodiments described above will be readily apparent and the generic principles defined herein can be applied to other embodiments without departing from the spirit and scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
[0033] The above detailed description sets forth the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above is only a specific implementation of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A Z-shaped heating module comprising a graphite electrode horizontally disposed on the bottom surface of an evaporation tank, characterized in that, The graphite electrode comprises a vertical section (3), a first connecting section (2) fixedly connected to the front end of the vertical section (3), and a second connecting section (5) fixedly connected to the rear end of the vertical section (3), the first connecting section (2) is located on one side of the vertical section (3), and the second connecting section (5) is located on the other side of the vertical section (3); The first connecting section (2) is connected with a first conductive clamping plate (1), and the second connecting section (5) is connected with a second conductive clamping plate (6); The first conductive clamping plate (1) and the second conductive clamping plate (6) are respectively electrically connected with a positive electrode of a power supply and a negative electrode of the power supply.
2. The Z-shaped heating module of claim 1, wherein, The first connecting section (2) is perpendicular to the vertical section (3), and the second connecting section (5) is perpendicular to the vertical section (3).
3. The Z-shaped heating module of claim 2, wherein, An arc is arranged at the connection between the first connecting section (2) and the vertical section (3), and an arc is arranged at the connection between the second connecting section (5) and the vertical section (3).
4. The serpentine heating module of claim 2 or 3, wherein, A first opening is arranged at a position of an evaporation tank corresponding to the first connecting section (2), and the first connecting section (2) extends out of the evaporation tank through the first opening; a second opening is arranged at a position of the evaporation tank corresponding to the second connecting section (5), and the second connecting section (5) extends out of the evaporation tank through the second opening.
5. The serpentine heating module of any one of claims 1, 2, or 3, wherein, A plurality of crucible mounting holes (4) are arranged on the graphite electrode.
6. The Z-shaped heating module of claim 5, wherein, An upper graphite carbon felt layer and an upper ceramic layer are sequentially arranged above the graphite electrode, a lower ceramic layer and a lower graphite carbon felt layer are sequentially arranged below the graphite electrode, and the shapes of the upper graphite carbon felt layer, the upper ceramic layer, the lower ceramic layer, and the lower graphite carbon felt layer are the same as the shape of the graphite electrode.
7. The Z-shaped heating module of claim 6, wherein, A white cotton layer is further arranged below the lower graphite carbon felt layer.
8. An evaporation apparatus, characterized by, A rack is arranged on the rack, and the Z-shaped heating module according to any one of claims 1-7 is arranged on the rack.
9. The evaporation apparatus according to claim 8, wherein A heat preservation baffle (7) is further arranged on the rack, a guide rail is connected to the rack, the length direction of the guide rail is perpendicular to the length direction of the vertical section (3), and the heat preservation baffle (7) can move above the Z-shaped heating module along the guide rail.
10. The evaporation apparatus according to claim 9, wherein A chain transmission assembly and a motor (8) are further arranged on the rack, the chain transmission assembly comprises a driving sprocket, a driven sprocket, and a chain simultaneously engaged with the driving sprocket and the driven sprocket; The moving direction of the chain is parallel to the length direction of the guide rail, and the heat preservation baffle (7) is connected with the chain; The power output end of the motor (8) is connected with the driving sprocket.