Packaging anti-leakage tooling

Abstract

The utility model provides a kind of encapsulation anti-leakage tool, belong to capacitor core ware glue injection equipment field, container, the container has the holding cavity, holding cavity is set on the container, and capacitor core is placed in holding cavity;Blocking end cover, blocking end cover end has plane structure, container one end is placed on blocking end cover plane structure, blocking end cover end has blocking piece, and blocking piece is used to prevent container from being inclined.Blocking end cover has through-hole, when container is placed on blocking end cover, through-hole is communicated with holding cavity, and the inner surface of through-hole is in contact with the outer surface of capacitor core lead, the utility model is applicable to the capacitor core lead of capacitor core located at both ends is sealed and filled with glue, by placing container one end on blocking end cover, capacitor core is placed in holding cavity, glue is injected into holding cavity from the other end of container, and blocking end cover can block potting adhesive injected into container, to avoid the leakage of injected potting adhesive.

Description

Technical Field

[0001] This utility model relates to the field of capacitor core injection equipment, specifically to a sealing and leak-proof tooling. Background Technology

[0002] In the field of capacitor core manufacturing, the capacitor core potting process is a crucial step in ensuring product performance stability. In existing technologies, when the capacitor core leads are only located at one end, the potting operation is relatively simple; the leads only need to be exposed before injecting potting compound into the container to complete the encapsulation.

[0003] However, when the capacitor core leads are located at both ends, a two-sided open-ended casing is required for internal encapsulation. Because of this open-ended design, the encapsulating adhesive easily overflows from the lead end during encapsulation, necessitating additional cleaning and treatment. This not only increases production steps and extends the production cycle but may also affect the appearance quality and performance stability of the capacitor core due to incomplete cleaning. Furthermore, to prevent adhesive overflow, operators must exercise extreme caution during encapsulation, controlling the speed and amount used, further reducing encapsulation efficiency. Utility Model Content

[0004] In view of this, the present invention provides a sealing and leak-proof tooling, which can be used to place one end of the container on the sealing end cap, place the capacitor core into the placement cavity, and inject glue into the placement cavity from the other end of the container. The sealing end cap can seal the potting glue injected into the container to prevent the injected potting glue from leaking.

[0005] To solve the above-mentioned technical problems, this utility model provides a sealing and leak-proof tooling, including a container. The container includes, but is not limited to, a cylindrical shape, and may also include shapes such as square or elliptical. In this utility model, a cylindrical shape is selected as an example. The container has a cylindrical structure with uniform curvature of the circular outer shell. When subjected to external pressure (such as sealing, transportation, or environmental stress), the pressure will be evenly distributed along the circumference, making it less prone to rupture. A placement cavity is provided through the container. The placement cavity is used to place the capacitor core. Placing the capacitor core in the placement cavity inside the container and injecting glue into the container can prevent the capacitor core from shaking and protect the capacitor core.

[0006] One end of the container is placed on the sealing end cap. The sealing end cap near the container end has a flat structure. Placing the container on the sealing end cap with one end of the container in contact with the sealing end cap can prevent the potting compound injected into the container from leaking. The sealing end cap has a through hole. The lead of one end of the capacitor core inserted into the placement cavity passes through the through hole. The inner surface of the through hole is in contact with the outer surface of the lead of the heating element core, which can also prevent the potting compound injected into the placement cavity from leaking.

[0007] The bottom of the further sealing end cap has an extension tube, which is concentric with the through hole and connected to it. The inner surface of the extension tube abuts against the outer surface of the capacitor core. The extension tube is longer, which can increase the sealing length and prevent the potting compound from overflowing from the through hole.

[0008] The end cap of the further sealing cap has a sealing element located on the planar structure of the sealing end cap. The sealing element is a retaining ring with an annular structure. The retaining ring is set around the outer surface of the container, and the inner surface of the retaining ring abuts against the outer surface of the container. The retaining ring can support the container and prevent the container from tilting during glue injection. The abutment between the retaining ring and the container can also seal the potting compound injected into the container.

[0009] Furthermore, sealing rings are installed on the inner surface of the retaining ring and the inner surface of the extended cylinder. First, grooves are opened on the inner surface of the retaining ring and the inner surface of the extended cylinder. The sealing ring is placed into the groove through interference fit. The sealing ring has a good deformation effect through contact with the capacitor core lead wire and the outer surface of the container. It can better contact with the outer surface of the capacitor core lead wire and the outer surface of the container, and can better seal the potting compound injected into the placement cavity.

[0010] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0011] 1. Preventing potting compound leakage: One end of the container is in close contact with the planar structure of the sealing end cap, forming a physical barrier that prevents potting compound from leaking from the connection between the container and the sealing end cap. The inner surface of the through hole of the sealing end cap is in contact with the outer surface of the capacitor core lead, enhancing the sealing performance of this part and preventing potting compound from leaking from the gap between the through hole and the lead.

[0012] 2. Ensure container stability: The retaining ring at the end of the sealing cap has a ring structure with its inner surface in contact with the outer surface of the container. This supports the container and prevents it from tilting during glue injection, ensuring a stable glue injection process.

[0013] 3. Protecting the capacitor core: Place the capacitor core in the placement cavity inside the container and inject the encapsulant. After the encapsulant cures, it can tightly fill the internal space of the container, preventing the capacitor core from shaking and providing reliable protection for it.

[0014] 4. Improved container reliability: The container has a cylindrical structure with uniform curvature of the outer shell. When subjected to external pressure, the pressure is evenly distributed along the circumference, making it less prone to breakage and improving the reliability of the container.

[0015] 5. Improve production efficiency: Effectively prevents potting compound overflow, eliminating the need for additional cleaning and treatment of overflowing compound, shortening the production cycle, and reducing the need for operators to be overly cautious in controlling the dispensing speed and amount, thus improving dispensing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a sealing and leak-proof tooling according to the present invention;

[0017] Figure 2 This is a cross-sectional view of the placement cavity of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Container; 2. Placement cavity; 3. Sealing end cap; 4. Sealing component; 5. Through hole; 6. Extension tube; 7. Sealing ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-2 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0020] like Figure 1 , 2 As shown:

[0021] This embodiment provides a sealing and leak-proof tooling, including a container 1. The container 1 can be cylindrical, but is not limited to cylindrical, and can also be square, elliptical, etc. In this utility model, a cylindrical shape is chosen as an example. The cylindrical outer shell has the characteristic of uniform force distribution. When the container 1 is subjected to external pressure, such as the pressure during the sealing process, the vibration and impact during transportation, or environmental stress, the pressure can be evenly distributed along the circumference, thereby significantly reducing the risk of container 1 breaking. A placement cavity 2 is provided through the inside of the container 1. The placement cavity 2 is used to place the capacitor core. After the capacitor core is accurately placed in the placement cavity 2 of the container 1, potting compound is injected into the container 1. After the potting compound cures, it can tightly fill the internal space of the container 1, effectively preventing the capacitor core from shaking inside the container 1, and at the same time providing reliable protection for the capacitor core.

[0022] like Figure 2 As shown:

[0023] One end of container 1 is placed on the sealing end cap 3. The sealing end cap 3 near one end of container 1 has a planar structure. When container 1 is placed on the sealing end cap 3 with the planar structure, one end of container 1 can come into close contact with the sealing end cap 3. This close contact forms a physical barrier, which can effectively prevent the potting compound injected into container 1 from leaking from the connection between container 1 and sealing end cap 3. The sealing end cap 3 also has a through hole 5. The lead wire of one end of the capacitor core placed in the placement cavity 2 needs to pass through the through hole 5. When the lead wire passes through the through hole 5, the inner surface of the through hole 5 comes into contact with the outer surface of the lead wire of the capacitor core. This contact further enhances the sealing of this part, which can also prevent the potting compound injected into the placement cavity 2 from leaking from the gap between the through hole 5 and the lead wire.

[0024] like Figure 1 , 2 As shown:

[0025] Furthermore, the bottom of the sealing end cap 3 is provided with an extension cylinder 6, which is concentrically positioned with and communicates with the through hole 5. The inner surface of the extension cylinder 6 abuts against the outer surface of the capacitor core. Due to the longer length of the extension cylinder 6, it can significantly increase the sealing length compared to a conventional structure. This design makes it necessary for the potting compound to travel a longer path to overflow from the through hole 5, thereby greatly increasing the difficulty of potting compound overflow and further improving the sealing performance of this part, effectively preventing potting compound from overflowing from the through hole 5.

[0026] like Figure 2 As shown:

[0027] The end cap 3 is further provided with a sealing element 4, which is located on the planar structure of the end cap 3. Specifically, it is a retaining ring, which is annular in structure and surrounds the outer surface of the container 1. The inner surface of the retaining ring abuts against the outer surface of the container 1. This abutting relationship allows the retaining ring to support the container 1, effectively preventing the container 1 from tilting when the glue is injected into it, and ensuring the stability of the glue injection process. At the same time, the part of the retaining ring that abuts against the container 1 can also seal the potting glue injected into the container 1, further reducing the possibility of the potting glue leaking from the outer periphery of the container 1.

[0028] like Figure 2 As shown:

[0029] A sealing ring 7 is installed on the inner surface of the retaining ring and the inner surface of the extension cylinder 6. When installing the sealing ring 7, grooves are first made on the inner surfaces of both the retaining ring and the extension cylinder 6. Then, the sealing ring 7 is placed into the grooves using an interference fit. The sealing ring 7 has good deformation properties. After installation, the contact between the sealing ring 7 and the capacitor core leads, as well as with the outer surface of the container 1, allows for a tighter fit to the surfaces of the relevant components. This tight fit better seals the potting compound injected into the placement cavity 2, further improving the sealing performance of the entire structure and ensuring that the potting compound does not leak within the container 1, thereby guaranteeing the performance and service life of the capacitor 1.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A sealing and leak-proof tooling, characterized in that: include: A container (1) has a placement cavity (2) inside the container (1), the placement cavity (2) is disposed through the container (1), and the placement cavity (2) is used to place a capacitor core; A sealing end cap (3) has a planar structure at its end. One end of the container (1) is placed on the planar structure of the sealing end cap (3). The sealing end cap (3) has a sealing element (4) at its end, which is used to prevent the container (1) from tilting. The sealing end cap (3) has a through hole (5). When the container (1) is placed on the sealing end cap (3), the through hole (5) is connected to the placement cavity (2). The inner surface of the through hole (5) abuts against the outer surface of the capacitor core lead wire.

2. The sealing and leak-proof tooling as described in claim 1, characterized in that: The container (1) has a cylindrical structure.

3. The sealing and leak-proof tooling as described in claim 1, characterized in that: The sealing component (4) is a retaining ring, which has an annular structure, and the inner surface of the retaining ring abuts against the outer surface of the container (1).

4. The sealing and leak-proof tooling as described in claim 3, characterized in that: The retaining ring is located on the planar structure of the sealing end cap (3) and is located on the outer surface of the sealing end cap (3).

5. The sealing and leak-proof tooling as described in claim 4, characterized in that: The sealing end cap (3) has an extension tube (6) at the bottom. The extension tube (6) has an annular structure. The extension tube (6) is concentrically arranged with the through hole (5). The extension tube (6) is connected to the through hole (5). The inner surface of the extension tube (6) abuts against the outer surface of the capacitor core. The extension tube (6) is used to increase the sealing length.

6. The sealing and leak-proof tooling as described in claim 5, characterized in that: The inner surface of the extended cylinder (6) and the inner surface of the retaining ring have multiple sealing rings (7), which are arranged linearly.

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