Evaporation boat capable of improving evaporation stability
By introducing an isolation section and a flow guide groove structure into the evaporation boat, the problems of wire misalignment and uneven metal liquid were solved, thereby achieving stability in evaporation and extending the life of the evaporation boat.
Patent Information
- Application Number
- CN202422929218.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing vapor deposition machines suffer from problems such as metal wire misalignment, uneven mixing of molten metal, easy splashing, and damage to the vapor deposition dish, leading to instability and shortened lifespan of the vapor deposition process.
An evaporation boat was designed, comprising a wire feeding zone, an evaporation zone, and an isolation section. The isolation section surrounds the wire feeding zone and is higher than its top, and has a flow section and a guide groove to restrict the movement of the metal wire and guide the flow of molten metal, forming a temperature transition and avoiding wire deviation and splashing.
It improves the stability of vapor deposition and the lifespan of the evaporation boat, ensures a stable wire feeding process, and avoids splashing of molten metal and localized temperature unevenness.
Smart Images
Figure CN223509941U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery technology field, concretely relates to a kind of evaporation boat of improving evaporation stability. BACKGROUND
[0002] With the application popularization of functional current collector in the field of battery electrode current collector, the improvement of evaporation efficiency of composite metal foil becomes one of the key concerns in the industry, the manufacturing method of composite metal foil is to composite a metal layer on the surface of polymer substrate by evaporation, and evaporation is to continuously transport metal wire into high-temperature evaporation dish to form metal vapor after melting, and then plated on the polymer substrate.
[0003] The existing evaporation dish used by the evaporation machine has the following problems: the end of the metal wire inserted into the evaporation dish is difficult to set a supporting mechanism for limiting due to the high temperature state, and the metal wire is prone to deviation during the wire feeding process; the newly melted low-temperature metal liquid in the evaporation dish cannot be quickly and uniformly mixed with the original high-temperature metal liquid, and is prone to splashing caused by temperature difference; the position corresponding to the wire feeding in the evaporation dish may be impacted by the metal liquid dropped when the metal wire is melted in advance, causing damage, and the overall heating is uneven, thus there is a risk of cracking. SUMMARY
[0004] The purpose of the utility model is to solve the above problems, and provide an evaporation boat to improve the evaporation stability.
[0005] To achieve the above purpose, the technical scheme provided by the utility model is:
[0006] An evaporation boat for improving evaporation stability, comprising a wire feeding area and an evaporation area, a separation part is provided between the wire feeding area and the evaporation area;
[0007] The separation part surrounds the wire feeding area, and the top end of the separation part is higher than the wire feeding area to limit the movement of the metal wire in the wire feeding area;
[0008] The separation part has a flow-through part that allows communication between the wire feeding area and the evaporation area;
[0009] The evaporation area is provided with a flow guide groove, and the flow-through part is in communication with the flow guide groove.
[0010] To optimize the above technical scheme, the specific measures taken also include:
[0011] The flow-through part is a flow-through hole or flow-through groove provided in the separation part.
[0012] Further, the separation part has a plurality of flow-through parts provided at different positions of the separation part, and each flow-through part is in communication with a flow guide groove in the evaporation area; the evaporation area is provided with flow guide grooves with different flow guide paths, and each flow guide groove is in communication with a flow-through part of the separation part.
[0013] Further, the flow-through portions are an even number of at least two, and both ends of the flow guide groove are communicated to different flow-through portions to form a passage.
[0014] Further, the flow guide grooves are nested in layers, and each flow guide groove is progressively closer to the middle of the evaporation boat than the adjacent outer flow guide groove.
[0015] As a preferred solution, the flow guide groove comprises at least one outer flow guide groove and one inner flow guide groove.
[0016] The isolation portion is arranged on one side of the evaporation boat, and the isolation portion is provided with a first flow-through portion communicating with the outer flow guide groove and a second flow-through portion communicating with the inner flow guide groove.
[0017] In the plurality of flow guide grooves nested in layers, the groove cross-sectional area of the adjacent outer flow guide groove is greater than that of the inner flow guide groove.
[0018] Further, at least one of the groove width and the groove depth of the adjacent outer flow guide groove is greater than that of the inner flow guide groove.
[0019] Further, the wire feeding area has a concave-convex rough upper surface.
[0020] Compared with the prior art, the utility model has the beneficial effects that:
[0021] The utility model discloses an evaporation boat capable of improving evaporation stability and prolonging the service life of the evaporation boat.
[0022] The isolation portion is arranged between the wire feeding area and the evaporation area, surrounds the wire feeding area, and has a top end higher than the wire feeding area, so that the metal wire in the wire feeding area can be limited to move by the surrounding higher isolation portion, the wire deviation during the wire feeding process of the metal wire is avoided, a supporting mechanism for limiting the position of the metal wire is not additionally arranged, and the metal wire can also be prevented from splashing into the high-temperature evaporation area to cause explosive boiling and splashing, and the evaporation boat is prevented from being locally too thin due to the impact of the wire feeding area.
[0023] The isolation portion has a flow-through portion for communicating the wire feeding area with the evaporation area, the evaporation area is provided with a flow guide groove, the flow-through portion and the flow guide groove are communicated, the low-temperature molten metal liquid of the metal wire in the wire feeding area of the utility model is guided to the evaporation area along the path of the flow guide groove from the flow-through portion, temperature transition is formed, the temperature of the evaporation area is uniform, and the metal liquid can be prevented from splashing.
[0024] Further, the utility model can also make the temperature of the evaporation area more uniform through the specific arrangement of the flow guide groove. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 : Schematic diagram of the evaporation boat in Example 1.
[0026] Figure 2 : Figure 1 A schematic diagram of the evaporation boat's long and short side cross-sectional structure (the flow section is a flow hole).
[0027] Figure 3 : Figure 1 A side sectional view of the long and short sides of the evaporation boat (the flow section is a flow channel).
[0028] Figure 4 : Schematic diagram of the evaporation boat in Example 2.
[0029] In the diagram: 1-Wire feeding zone, 2-Evaporation zone, 3-Isolation section, 4-Guide groove, 5-Flow hole, 6-Flow groove, 7-Outer ring guide groove, 8-Inner ring guide groove, 9-First flow section, 10-Second flow section. Detailed Implementation
[0030] The present invention will be further described in detail below through embodiments, but it should not be construed as the scope of the present invention being limited to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.
[0031] In the description of this utility model, it should also be noted that:
[0032] The orientations or positional relationships described herein are based on the relationships shown in the accompanying drawings and are only for the purpose of facilitating the description of this utility model and simplifying the description. They are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0033] This invention provides an evaporation boat for improving the stability of vapor deposition, such as... Figure 1 As shown, it includes a wire feeding zone 1 and an evaporation zone 2, with an isolation section 3 provided between the wire feeding zone 1 and the evaporation zone 2;
[0034] The isolation section 3 surrounds the wire feeding area 1, and the top of the isolation section 3 is higher than the wire feeding area 1; the isolation section 3 has a flow section that enables the wire feeding area 1 to communicate with the evaporation area 2; the evaporation area 2 is provided with a guide groove 4, and the flow section is connected to the guide groove 4.
[0035] In some embodiments, the flow section is a flow hole 5 located in the isolation section 3, such as... Figure 2 As shown; in other embodiments, the flow section is a flow channel 6 provided in the isolation section 3, such as Figure 3 As shown.
[0036] The top of the isolation section 3 is higher than the wire feeding area 1, so that the metal wire in the wire feeding area 1 can be restricted from moving by the surrounding higher isolation section 3, avoiding wire deviation during the wire feeding process. There is no need to set up a separate support mechanism to restrict the position of the metal wire. It can also prevent the metal wire from melting and dripping prematurely and splashing into the high-temperature evaporation area 2, causing boiling and splashing, impacting the wire feeding area 1 and causing the evaporation boat to become too thin in some areas.
[0037] Specifically, the top of the isolation section 3 in this application can be set to be higher than the height of the main structure of the evaporation boat.
[0038] The isolation section 3 is provided with several flow sections so that the metal wire in the wire feeding area 1 melts and flows from the flow section to the guide groove 4, and enters the evaporation area 2 along the path of the guide groove 4. This arrangement guides the low-temperature molten metal in the wire feeding area 1 to the evaporation area 2, so that a temperature transition is formed between the wire feeding area 1 and the evaporation area 2, and avoids splashing of molten metal.
[0039] Preferably, the opening width of the flow section does not exceed 1 mm.
[0040] Preferably, the flow guide groove 4 is a flow guide groove.
[0041] The isolation section 3 and the guide channel 4 of this application can be configured in various ways: the isolation section 3 has several flow sections located at different positions in the isolation section 3, and each flow section is connected to the guide channel 4 in the evaporation zone 2; the evaporation zone 2 is provided with guide channels 4 with different flow paths, and each guide channel 4 is connected to the flow section of the isolation section 3.
[0042] Preferably, there is an even number of flow sections, and at least two flow sections. Both ends of the guide channel 4 are connected to different flow sections to form a passage. The molten metal flows out from two different directions at both ends of the passage and eventually converges, making the temperature of the guide channel 4 more consistent and the temperature of the molten metal in the evaporation zone 2 more uniform.
[0043] The guide channels 4 are multiple nested in layers. The inner ring guide channels 8 of each guide channel 4 are closer to the middle of the evaporation boat than the adjacent outer ring guide channels 7. The temperature difference between the evaporation zone 2 and the wire feeding zone 1 is greater the farther away from the wire feeding zone 1, and the more flow needs to be diverted. The multiple guide channels 4 are nested and evenly distributed in the evaporation zone 2, and all areas in the evaporation zone 2 can be diverted. Therefore, by setting up the nested guide channels 4, the temperature of the molten metal in the evaporation zone 2 can be more uniform.
[0044] Preferably, the nested guide channels 4 include at least one outer guide channel 7 and one inner guide channel 8.
[0045] In some embodiments, the outer ring guide groove 7 is provided around the inner edge of the evaporation boat.
[0046] In some embodiments, the isolation section 3 is located on one side inside the evaporation boat, and the isolation section 3 has a first flow section 9 that connects to the outer ring guide groove 7 and a second flow section 10 that connects to the inner ring guide groove 8.
[0047] In the multiple nested guide channels 4, the cross-sectional area of the adjacent outer guide channel 7 is larger than that of the inner guide channel 8; the outermost guide channel 4 has a longer path and a greater temperature difference with the wire feeding area 1, so a larger flow channel is required, which can improve the temperature consistency between the outer and inner rings of the evaporation boat.
[0048] To make the cross-sectional area of the adjacent outer ring guide channel 7 larger than that of the inner ring guide channel 8, the width of the adjacent outer ring guide channel 7 can be made greater than that of the inner ring guide channel 8, or the depth of the adjacent outer ring guide channel 7 can be made greater than that of the inner ring guide channel 8, or both the width and depth of the adjacent outer ring guide channel 7 can be made greater than those of the inner ring guide channel 8.
[0049] In some embodiments, the wire feeding area 1 has an uneven, rough upper surface, such as mesh or louver-like grooves, to increase the friction between the wire and the surface of the wire feeding area 1, and further limit the displacement and swaying of the wire.
[0050] In some preferred embodiments, the upper surface of the wire feeding area 1 is configured with a structure that protrudes from the center to the periphery, and the flow section adopts a flow hole 5 to prevent the aluminum wire from protruding from the flow section.
[0051] The present invention will be further described in detail below with reference to specific embodiments:
[0052] Example 1
[0053] like Figure 1 As shown, the evaporation zone 2 of the evaporation boat is provided with an isolation section 3, which surrounds the wire feeding zone 1 and the top of the isolation section 3 is higher than the wire feeding zone 1. The aluminum wire in the wire feeding zone 1 melts at high temperature, and the molten aluminum flows from the flow section of the isolation section 3 to the guide groove 4 and enters the evaporation zone 2. Since the ends of the aluminum wire in the wire feeding zone 1 are subjected to high temperature and are relatively soft, the isolation section 3 is set higher to better limit the aluminum wire. The wire feeding zone 1 has a rough louver-shaped upper surface.
[0054] The evaporation zone 2 is provided with an outer ring guide channel 7 and an inner ring guide channel 8; the isolation section 3 is provided with a first flow section 9 that connects to the outer ring guide channel 7 and a second flow section 10 that connects to the inner ring guide channel 8; wherein the isolation section 3 is provided with one first flow section 9 on each of the left and right sides along the inner edge of the evaporation boat, and two second flow sections 10 are provided on the side of the isolation section 3 near the middle of the evaporation boat; the two ends of the outer ring guide channel 7 are respectively connected to the first flow sections 9 on the left and right sides of the isolation section 3 near the inner edge of the evaporation boat, and the two ends of the inner ring guide channel 8 are respectively connected to the two second flow sections 10 on the side of the isolation section 3 near the middle of the evaporation boat, so that the outer ring guide channel 7 and the inner ring guide channel 8 form a similar spiral structure.
[0055] Figure 2 , Figure 3 The figures show cross-sectional views of the long and short sides of the evaporation boat, which has flow holes 5 or flow grooves 6 as the flow section. It can be seen from the figures that the depth of the outer ring guide groove 7 is greater than the depth of the inner ring guide groove 8, which makes the temperature of the evaporation zone tend to be uniform.
[0056] Example 2
[0057] like Figure 4 As shown, the evaporation zone 2 of the evaporation boat is provided with an isolation section 3, which surrounds the wire feeding zone 1 and the top of the isolation section 3 is higher than the wire feeding zone 1; the wire feeding zone 1 has a rough mesh-like upper surface; the evaporation zone 2 is provided with multiple nested guide grooves 4, and the multi-layer nesting arrangement makes the temperature in the evaporation zone 2 more uniform; the width of the adjacent outer ring guide groove 7 is greater than the width of the inner ring guide groove 8.
[0058] Figure 4 It contains three guide channels 4, namely the outer ring, middle ring and inner ring guide channels. As can be seen from the figure, the width of the outer ring guide channel is greater than that of the middle ring guide channel, which is greater than that of the inner ring guide channel, making the temperature of the evaporation zone more uniform.
[0059] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made by those skilled in the art to the above embodiments without departing from the scope of the present utility model's technical solution and based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model's technical solution.
Claims
1. An evaporation boat for improving the stability of vapor deposition, characterized in that: It includes a wire feeding area and an evaporation area, and an isolation section is provided between the wire feeding area and the evaporation area; The isolation section surrounds the wire feeding area, and the top of the isolation section is higher than the wire feeding area to restrict the movement of the metal wire within the wire feeding area; The isolation section has a flow section that allows the wire feeding area to communicate with the evaporation area; The evaporation zone is provided with a flow guide channel, and the flow section is connected to the flow guide channel.
2. The evaporation boat for improving vapor deposition stability according to claim 1, characterized in that: The aforementioned flow section is a flow hole or flow groove located in the isolation section.
3. The evaporation boat for improving vapor deposition stability according to claim 1, characterized in that: The isolation section has several flow sections located at different positions within the isolation section, each flow section being connected to a guide channel within the evaporation zone; the evaporation zone is provided with guide channels having different flow paths, each guide channel being connected to a flow section within the isolation section.
4. The evaporation boat for improving vapor deposition stability according to claim 1, characterized in that: The number of flow sections is at least two (an even number), and both ends of the guide groove are connected to different flow sections to form a passage.
5. The evaporation boat for improving vapor deposition stability according to claim 1, characterized in that: The aforementioned guide channels are multiple nested layers, with the innermost guide channel being closer to the center of the evaporation boat than the adjacent outermost guide channel.
6. The evaporation boat for improving vapor deposition stability according to claim 5, characterized in that: The flow channel includes at least one outer flow channel and one inner flow channel.
7. The evaporation boat for improving vapor deposition stability according to claim 6, characterized in that: The isolation section is located on one side inside the evaporation boat, and the isolation section has a first flow section that connects to the outer ring guide groove and a second flow section that connects to the inner ring guide groove.
8. The evaporation boat for improving vapor deposition stability according to claim 5, characterized in that: In the nested arrangement of multiple guide channels, the cross-sectional area of the adjacent outer guide channel is larger than that of the inner guide channel.
9. The evaporation boat for improving vapor deposition stability according to claim 8, characterized in that: The width and depth of the adjacent outer ring guide channel are at least greater than the width and depth of the inner ring guide channel.
10. The evaporation boat for improving vapor deposition stability according to claim 1, characterized in that: The wire feeding area has an uneven, rough upper surface.