Distribution plate for liquid flow proportion of special battery and forming mold of distribution plate

Abstract

The utility model relates to the field of special batteries, and discloses a distribution plate for the liquid flow proportion of a special battery and a forming die thereof, and the distribution plate for the liquid flow proportion of the special battery comprises a distribution plate body, the distribution groove is formed in the top of the distribution plate body; the first convex block is mounted on the bottom wall of the distribution groove and is used for separating the distribution groove to form a flow channel structure; the first through hole is formed in the bottom wall of the distribution groove. According to the utility model, through the optimal design of the forming die, the requirement of cold die spreading is ensured, better quality stability and product cost performance are achieved, and through directly adopting the forming die, the distribution plate body and other parts are formed at one time, so that the technological process is simplified, and the precision and stability of the distribution plate are ensured; the distribution accuracy of the battery liquid flow proportion and the consistency of the battery performance are improved, and the distribution plate meets the requirements of high corrosion resistance and high voltage resistance grade as a special battery diaphragm material.

Description

Technical Field

[0001] This utility model relates to the field of special batteries, and in particular to a distribution plate for liquid flow ratio in special batteries and its molding die. Background Technology

[0002] Currently, in the fields of drones and military applications, the performance requirements for energy storage batteries are becoming increasingly stringent, with smaller size, lighter weight, and higher energy density becoming the general trend. For example, in the drone field, such batteries can ensure longer loiter time and longer range, and the requirements for separator materials in these specialized batteries are becoming increasingly demanding.

[0003] The existing battery liquid flow proportioning distribution plate uses epoxy prepreg electronic grade glass fiber cloth, which requires cutting the prepreg cloth, laying it in layers and stacking it in a mold, heating and curing it before demolding, and then performing post-processing. This is labor-intensive and costly. Due to problems such as venting inside the mold, the product surface has air holes and dents, resulting in a low pass rate. Utility Model Content

[0004] To address at least one of the aforementioned defects, according to one aspect of the present invention, a special battery liquid flow ratio distribution plate is provided, comprising: a distribution plate body; a distribution groove formed on the top of the distribution plate body; a first protrusion mounted on the bottom wall of the distribution groove for separating the distribution groove to form a flow channel structure; and a first through hole formed on the bottom wall of the distribution groove.

[0005] It also includes: a second protrusion, installed on the bottom wall of the distribution groove, for separating the distribution groove to form a flow channel structure; and a third protrusion, installed on the bottom wall of the distribution groove, for separating the distribution groove to form a flow channel structure.

[0006] It also includes: a second through hole, formed on the distribution plate body; an edge groove, formed on the bottom of the distribution plate body; and several connecting blocks, installed on the bottom of the distribution plate body, arranged in a linear array.

[0007] According to another aspect of the present invention, a molding die is provided, comprising a special battery fluid flow proportioning distribution plate as described above.

[0008] It also includes: a lower template; a lower die, mounted on the lower template; an upper punch, disposed above the lower die, with the distribution plate body disposed between the upper punch and the lower die; and an upper template, mounted on top of the upper punch.

[0009] The lower template includes: two mold supports installed on the lower template in a symmetrical arrangement, and the lower die installed on the two mold supports; a push rod support plate installed on the lower template and positioned between the two mold supports; and a push rod fixing plate installed on the push rod support plate.

[0010] It also includes: several coolant channels, respectively opened in the upper punch and lower die, for conveying coolant; and several heating oil channels, respectively opened in the upper punch and lower die, for conveying heating oil.

[0011] The lower die includes: a plurality of guide blocks mounted on the lower die, the upper die connected to the guide blocks, the guide blocks being used to guide the position of the upper die; and a plurality of pressure blocks mounted on the lower die and connected to the upper die.

[0012] It also includes: an air top, installed on the upper template, for ejecting the product.

[0013] This utility model provides a special battery fluid flow proportioning distribution plate and its molding die. Compared with the prior art, it has the following advantages:

[0014] 1. Through the optimized design of the molding die, especially the alternating operation of coolant and heating oil, the requirements for cold mold laying are guaranteed, the product molding cycle is accelerated, and the product has better quality stability and cost performance.

[0015] 2. By directly using molding molds, the distribution plate body and other components are formed in one go, eliminating tedious steps such as cutting prepreg, layering, heating and curing before demolding, and post-processing, thus simplifying the process.

[0016] 3. The molding process ensures the precision and stability of the distribution plate, improves the accuracy of the battery liquid flow ratio distribution and the consistency of battery performance, and the distribution plate meets the requirements of high corrosion resistance and high voltage resistance as a special battery separator material. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the distribution plate body proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the distribution plate body from another perspective proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the upper template, upper punch, lower die, and lower template structure proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the upper template, upper punch, lower die, and lower template proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the lower punch structure proposed in this utility model.

[0022] The attached figures are labeled as follows:

[0023] 1. Apply template; 101. Top of air;

[0024] 2. Upper punch;

[0025] 3. Lower die; 301. Guide block; 302. Pressure block;

[0026] 4. Lower template; 401. Formwork support; 402. Top rod support plate; 403. Top rod fixing plate;

[0027] 5. Coolant passage;

[0028] 6. Heating oil channel;

[0029] 7. Distribution plate body; 701. Distribution groove; 702. First through hole; 703. First protrusion; 704. Second protrusion; 705. Third protrusion; 706. Second through hole; 707. Connecting block; 708. Edge groove. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0031] Reference Figures 1-2According to one aspect of this utility model, a special battery liquid flow proportioning distribution plate is provided, comprising: a distribution plate body 7, which serves as the basic structure of the entire distribution plate, providing the necessary strength and stability, and is made of epoxy fiberglass material, capable of meeting the harsh operating environment and performance requirements of special batteries, ensuring that no deformation or damage occurs during the liquid flow distribution process, and guaranteeing the precise proportioning of battery liquid flow; and a distribution groove 701, formed on the top of the distribution plate body 7, which is the main channel for liquid flow, and its design optimizes the liquid flow path, ensuring that the liquid can flow evenly and smoothly, reducing eddies and turbulence, and improving efficiency. The distribution precision is achieved through the following: a first protrusion 703 is installed on the bottom wall of the distribution groove 701 to separate the distribution groove 701 and form a flow channel structure; a first through hole 702 is formed on the bottom wall of the distribution groove 701; a second protrusion 704 is installed on the bottom wall of the distribution groove 701 to separate the distribution groove 701 and form a flow channel structure; and a third protrusion 705 is installed on the bottom wall of the distribution groove 701 to separate the distribution groove 701 and form a flow channel structure. These protrusions act as separators within the distribution groove 701, forming a specific flow channel structure that can precisely control the proportion and direction of different liquid flows, ensuring that the battery fluid is mixed according to the set proportion, and improving the consistency of battery performance.

[0032] A second through hole 706 is formed on the distribution plate body 7; an edge groove 708 is formed at the bottom of the distribution plate body 7; and several connecting blocks 707 are installed at the bottom of the distribution plate body 7 in a linear array. The design of the first through hole 702 and the second through hole 706 allows liquid to flow between different layers or areas of the distribution plate, increasing the flexibility of the fluid and also helping to balance pressure and reduce resistance during the fluid distribution process. The edge groove 708 formed at the bottom of the distribution plate body 7 may be used to collect overflowing liquid or as a venting channel, helping to keep the inside of the distribution plate clean and smooth, reducing the risk of bubbles and blockages. The linear array of connecting blocks 707 facilitates the fixing and connection of the distribution plate with other components, enhancing the overall stability and ease of installation. Example

[0033] Reference Figures 3-5 According to another aspect of the present invention, a molding die is provided, including the special battery fluid flow proportioning distribution plate of any of the above claims.

[0034] It also includes: a lower template 4; a lower die 3, mounted on the lower template 4; an upper punch 2, positioned above the lower die 3; a distribution plate body 7 positioned between the upper punch 2 and the lower die 3; and an upper template 1, mounted on top of the upper punch 2. In the forming mold, the lower template 4 and the upper template 1 together form the frame of the mold, providing support for the lower die 3 and the upper punch 2, ensuring the accuracy and stability of the mold during the forming process.

[0035] The lower mold plate 4 includes: two mold support bases 401, which are installed on the lower mold plate 4 and arranged symmetrically; the lower die 3 is installed on the two mold support bases 401; an ejector pin support plate 402, which is installed on the lower mold plate 4 and positioned between the two mold support bases 401; and an ejector pin fixing plate 403, which is installed on the ejector pin support plate 402. The lower die 3 and the upper punch 2 are the core components of the forming mold. They are precisely matched according to the product design shape and form the material through pressure. The distribution plate body 7 is positioned between the upper punch 2 and the lower die 3 to ensure precise control of the liquid flow ratio during the forming process. The mold support bases 401 support the lower die 3 and keep its position stable. The ejector pin support plate 402 and the ejector pin fixing plate 403 are used for the mold opening and closing process, as well as the ejection of the product, which improves the operating efficiency and automation of the mold.

[0036] Several coolant channels 5 are respectively opened in the upper punch 2 and the lower die 3 for conveying coolant; several heating oil channels 6 are respectively opened in the upper punch 2 and the lower die 3 for conveying heating oil. The design of alternating operation of heating oil and coolant in a dual-circuit system improves production efficiency.

[0037] The lower die 3 includes: several guide blocks 301 installed on the lower die 3, the upper punch 2 connected to the guide blocks 301, the guide blocks 301 being used to guide the position of the upper punch 2; several pressure blocks 302 installed on the lower die 3 and connected to the upper punch 2, the guide blocks 301 guiding the position of the upper punch 2 to ensure mold closing accuracy; the pressure blocks 302 bearing the force when the upper punch 2 presses down, maintaining the stability of the lower die 3, together ensuring the accuracy of the molding process and the dimensional accuracy of the product.

[0038] The air ejector 101 is installed on the upper mold plate 1 and is used to eject the product. The air ejector 101 replaces the ejector rod structure, which not only ensures the product ejection requirements, but also avoids the impact of ejector rod marks on the surface on the use.

[0039] During use, ensure that the special battery fluid flow ratio distribution plate is correctly installed between the upper punch 2 and the lower die 3, and that the flow channel structure on the distribution plate matches the product design requirements. Check whether the lower mold plate 4 and the upper mold plate 1 are stable, and whether the mold support 401, the ejector pin support plate 402, and the ejector pin fixing plate 403 are installed in place. Confirm that the coolant channel 5 and the heating oil channel 6 are unobstructed. Prepare the corresponding coolant and heating oil. Adjust the air top 101 to the appropriate position to ensure that the product can be ejected smoothly. Use electronic fiberglass cloth, pre-cut according to the shape using a tooling pressure plate, to replace the existing epoxy fiberglass prepreg cloth. After the electronic fiberglass cloth is laid in the mold, fill it with high-flow epoxy resin material. Start the mold closing program. Under the guidance of the guide block 301, the upper punch 2 accurately enters the lower die 3 and comes into close contact with the pressure block 302. The distribution plate moves together with the upper punch 2. The flow channel structure is aligned with the corresponding part in the lower die 3 to form a closed liquid flow channel. After the mold is closed, the sealing of the mold is checked to ensure that there is no liquid leakage. Epoxy resin is injected into the mold according to the set ratio through the through holes and flow channel structure on the distribution plate. If necessary, the coolant channel 5 and heating oil channel 6 are activated to control the temperature inside the mold and ensure that the epoxy resin is molded under the best conditions. The injection pressure and temperature are maintained for a period of time to allow the epoxy resin to fully fill the mold and cure. After the molding is completed, the mold opening program is started. The upper punch 2 moves upward under the action of the ejector plate 402 and the ejector plate 403 and separates from the lower die 3. At the same time, the air top 101 is activated to push the product out of the lower die 3 by air pressure, avoiding the product surface marks caused by the use of ejector pins. The product is taken out and its quality and dimensional accuracy are checked to prepare for the next round of molding.

[0040] In summary, compared with existing technologies, it has the following beneficial effects:

[0041] Through optimized mold design, especially the alternating operation of coolant and heating oil, the requirements for cold mold laying are guaranteed, the product molding cycle is accelerated, and the product has better quality stability and cost performance.

[0042] By directly using molding molds, the distribution plate body 7 and other components are molded in one go, eliminating tedious steps such as cutting prepreg, layering, demolding after heating and curing, and post-processing, thus simplifying the process.

[0043] The molding process ensures the precision and stability of the distribution plate, improves the accuracy of battery liquid flow ratio distribution and the consistency of battery performance, and the distribution plate meets the requirements of high corrosion resistance and high voltage resistance as a special battery separator material.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A special battery fluid flow ratio distribution plate, characterized in that, include: Distribution plate body (7); A distribution slot (701) is provided on the top of the distribution plate body (7); The first protrusion (703) block is installed on the bottom wall of the distribution groove (701) to separate the distribution groove (701) to form a flow channel structure; The first through hole (702) is formed on the bottom wall of the distribution groove (701).

2. The special battery liquid flow proportioning distribution plate according to claim 1, characterized in that, Also includes: The second protrusion (704) block is installed on the bottom wall of the distribution groove (701) to separate the distribution groove (701) to form a flow channel structure; The third protrusion (705) block is installed on the bottom wall of the distribution groove (701) to separate the distribution groove (701) to form a flow channel structure.

3. The special battery fluid flow proportioning distribution plate according to claim 1, characterized in that, Also includes: The second through hole (706) is formed on the distribution plate body (7); An edge groove (708) is formed at the bottom of the distribution plate body (7); Several connecting blocks (707) are installed at the bottom of the distribution plate body (7) and are distributed in a linear array.

4. A molding die, characterized in that, The special battery fluid flow ratio distribution plate described in any one of claims 1-3 above includes the one described in claims 1-3.

5. A molding die according to claim 4, characterized in that, Also includes: Template (4); The lower die (3) is installed on the lower template (4); The upper punch (2) is disposed above the lower die (3), and the distribution plate body (7) is disposed between the upper punch (2) and the lower die (3); The upper template (1) is installed on top of the upper punch (2).

6. A molding die according to claim 5, characterized in that, The lower template (4) includes: Two formwork supports (401) are installed on the lower template (4) and are arranged symmetrically. The lower die (3) is installed on the two formwork supports (401). The top rod support plate (402) is installed on the lower template (4) and is located between the two formwork supports (401); The top rod fixing plate (403) is installed on the top rod support plate (402).

7. A molding die according to claim 5, characterized in that, Also includes: Several coolant channels (5) are respectively opened in the upper punch (2) and the lower die (3) for conveying coolant; Several heating oil channels (6) are respectively opened in the upper punch (2) and the lower die (3) for conveying heating oil.

8. A molding die according to claim 5, characterized in that, The lower die (3) includes: Several guide blocks (301) are installed on the lower die (3), and the upper punch (2) is connected to the guide blocks (301). The guide blocks (301) are used to guide the position of the upper punch (2). Several pressure-bearing blocks (302) are installed on the lower concave mold (3) and connected to the upper convex mold (2).

9. A molding die according to claim 5, characterized in that, Also includes: An air top (101) is installed on the upper template (1) for ejecting the product.

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