Annular transformer potting circular shell device

Abstract

The utility model discloses a device for filling and sealing a circular shell of an annular transformer, which relates to the technical field of transformer filling and sealing and comprises a circular shell, a transformer is arranged in the circular shell, and an anti-deformation tool is arranged at the top of the circular shell and is matched with the circular shell in an inserting manner; the device for encapsulating the circular shell of the annular transformer can prevent the circular shell from being stressed and deformed due to heat generated by curing of an epoxy encapsulating material in the encapsulating process of the annular transformer, the size of the circular shell is ensured, the appearance reject ratio is reduced, the product quality is improved, the installation requirement is met, and the installation efficiency of customers is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer potting technical field, concretely is a kind of annular transformer potting circular shell device. BACKGROUND

[0002] In practical application, to meet the installation demand, the size and performance of the transformer need to be strictly controlled. Controlling the size is to prevent the working performance between components from being affected due to the size not meeting the requirements, so as to ensure the safety of product use. For the annular transformer, it is usually needed to be potted in the plastic shell of customer specified size according to the installation conditions and application scenarios after being made. However, since the transformer needs to meet the electrical performance requirements in design and development, the actual outer diameter size of the product is infinitely close to the shell size, and the outer diameter size is difficult to be completely consistent when the transformer is made, and there is a certain difference. In the potting process, when the product outer diameter size is in a tight state, the heat will be released when the potted epoxy potting material solidifies, and the heat will cause the deformation of the shell under stress, resulting in product appearance defect, which cannot meet the installation requirements, and thus affects the installation efficiency of customers. SUMMARY

[0003] The utility model aims at providing a kind of annular transformer potting circular shell device, the annular transformer potting circular shell device can prevent annular transformer from being deformed due to the heat generated by epoxy potting material solidification in the potting process, ensure the size of circular shell, reduce the appearance defect rate, improve product quality, meet the installation requirements, and ensure the installation efficiency of customers.

[0004] The above optimization structure of the utility model is realized by the following technical scheme: a kind of annular transformer potting circular shell device, including circular shell, transformer is equipped in the circular shell;

[0005] Anti-deformation tool, the anti-deformation tool is equipped at the top of the circular shell, and is inserted with the circular shell.

[0006] In some embodiments, the anti-deformation tool includes a constraint ring, and the constraint ring is coaxially sleeved on the top of the circular shell.

[0007] Limiting ring, the limiting ring is coaxially arranged on the top of the constraint ring, and is attached to the top surface of the circular shell.

[0008] In some embodiments, the anti-deformation tool further includes a lead slot, and the bottom wall of the lead slot is flush with the top surface of the circular shell.

[0009] In some embodiments, the circular shell includes a potting bottom plate.

[0010] A potting ring is arranged on the potting bottom plate.

[0011] A positioning column is coaxially arranged in the potting ring and fixedly connected with the potting bottom plate.

[0012] In some embodiments, the circular shell further comprises a mounting hole coaxially penetrating through the positioning column.

[0013] In some embodiments, the mounting hole is in the shape of a convex.

[0014] In some embodiments, the potting bottom plate, the potting ring, the positioning column and the mounting hole are integrally injection molded.

[0015] In some embodiments, the anti-deformation tool is made of aluminum alloy.

[0016] In summary, the utility model has the following beneficial effects:

[0017] The annular transformer potting circular shell device realizes the connection of the anti-deformation tool and the circular shell through the limiting ring, ensures the position of the constraint ring on the circular shell, can constrain the top of the circular shell through the constraint ring, and when the circular shell has a deformation trend due to the heat generated by the solidification of the epoxy potting material during the potting process, the constraint ring has a reverse force on the circular shell, thereby preventing the deformation of the circular shell during the potting process, ensuring the size of the circular shell, reducing the appearance failure rate, improving the product quality, meeting the installation requirements, and ensuring the installation efficiency of customers. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model is a structural schematic view;

[0019] Figure 2 The utility model is a top view;

[0020] Figure 3 The utility model is a top view; Figure 2 The utility model is a sectional view along A-A direction.

[0021] In the figure: 1, circular shell; 11, potting bottom plate; 12, potting ring; 13, positioning column; 14, mounting hole; 2, anti-deformation tool; 21, constraint ring; 22, limiting ring; 23, lead slot. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0023] Reference Figures 1-3 A kind of annular transformer encapsulation circular shell device, including circular shell 1, anti-deformation tool 2, circular shell 1 can be the container for containing transformer, provide the space for the encapsulation of transformer, and can form whole with transformer after encapsulation, protect transformer in the process of use, anti-deformation tool 2 is located at the top of circular shell 1, and with the plug-in cooperation of circular shell 1, can prevent the deformation of circular shell 1 due to the heat generated by epoxy encapsulation material (can be epoxy resin) solidification in the process of encapsulation, ensure the roundness, size of circular shell 1, reduce the appearance defective rate, improve product quality, meet the installation requirements, ensure the installation efficiency of customer.

[0024] In some embodiments, anti-deformation tool 2 includes constraint ring 21, limiting ring 22, constraint ring 21 is coaxially sleeved at the top of circular shell 1, constraint ring 21 can constrain the top of circular shell 1, so that when the heat generated by epoxy encapsulation material solidification causes circular shell 1 to have deformation trend, constraint ring 21 exerts reverse force on it, prevent the deformation of circular shell 1 in the process of encapsulation, constraint ring 21 can be interference fit with circular shell 1, can reduce the gap between constraint ring 21 and circular shell 1, improve the constraint effect of constraint ring 21, limiting ring 22 is coaxially arranged at the top of constraint ring 21, and is attached to the top surface of circular shell 1, the plug-in cooperation of anti-deformation tool 2 and circular shell 1 can be realized by limiting ring 22, improve the convenience of connecting anti-deformation tool 2 and circular shell 1, and can limit the position of constraint ring 21 on circular shell 1, ensure that constraint ring 21 can stably play a role.

[0025] In some embodiments, anti-deformation tool 2 further includes lead slot 23, which facilitates the lead of transformer to be drawn out, avoids damaging the lead in the process of encapsulation, the bottom wall of lead slot 23 is flush with the top surface of circular shell 1, which can ensure that the height of the opening of the top of circular shell 1 is constrained by constraint ring 21, thereby preventing the deformation of circular shell 1 due to the heat generated by epoxy encapsulation material solidification in the process of encapsulation under the condition that the outer diameter size of transformer is tight, ensuring the appearance size of circular shell 1, meeting the installation requirements.

[0026] In some embodiments, the anti-deformation tooling 2 is made of metal materials such as aluminum alloy. Aluminum alloy has good strength and corrosion resistance, which can effectively ensure the performance and service life of the anti-deformation tooling 2. At the same time, it has good thermal conductivity, which can accelerate the heat dissipation generated during the curing of epoxy potting material, and further enhance the anti-deformation tooling 2's ability to prevent deformation of the circular shell 1.

[0027] In some embodiments, the circular housing 1 includes a potting base plate 11, a potting ring 12, and a positioning post 13. The potting base plate 11 provides stable support for the entire potting structure. The potting base plate 11 can be a circular plate. The potting ring 12 is disposed on the potting base plate 11 and together with the potting base plate 11 forms a space for accommodating the transformer, facilitating the placement of the transformer. The positioning post 13 is coaxially disposed inside the potting ring 12 and is fixedly connected to the potting base plate 11. The positioning post 13 is used to position the transformer, ensuring the accurate position of the transformer inside the circular housing 1. At the same time, the positioning post 13 can increase the contact area between the circular housing 1 and the transformer, thereby improving the connection strength between the circular housing 1 and the transformer. The cross-section of the positioning post 13 can be convex. Through the bottom boss, it can be plugged into the transformer, thereby reducing the gap between the positioning post 13 and the transformer and improving the accuracy of the transformer's position inside the circular housing 1.

[0028] In some embodiments, the circular housing 1 further includes a mounting hole 14, which coaxially passes through the positioning post 13. The mounting hole 14 facilitates the subsequent installation and fixing of the potted transformer. The cross-section of the mounting hole 14 can be convex, which can limit the position when installing and fixing the transformer, thus improving the convenience of installation. The top of the positioning post 13 is higher than the potting surface, which can prevent the epoxy potting material from leaking from the mounting hole 14.

[0029] In some embodiments, the potting base plate 11, potting ring 12, positioning post 13 and mounting hole 14 can be made of plastic material using an integral injection molding process. The integral structure can ensure the integrity and stability of the circular shell 1.

[0030] The specific working principle is as follows:

[0031] The toroidal transformer is placed inside the potting ring 12 of the circular housing 1, with the positioning post 13 passing through the transformer. The transformer's position is adjusted so that its center is aligned with the positioning post 13, ensuring accurate positioning within the circular housing 1. The anti-deformation fixture 2 is then fitted onto the top of the circular housing 1, ensuring a tight fit between the limiting ring 22 and the top surface of the circular housing 1, achieving a proper insertion and engagement between the anti-deformation fixture 2 and the circular housing 1. The transformer's leads are then led out through the lead slots 23, ensuring they are neat and orderly to prevent damage during the potting process.

[0032] The epoxy pouring material is injected into the circular shell 1 to fill the gap between the circular shell 1 and the transformer, and the constraint ring 21 and the limiting ring 22 of the anti-deformation tool 2 constrain and limit the top of the circular shell 1 to prevent the deformation of the circular shell 1 due to the temperature generated during the curing of the epoxy, and after the epoxy pouring material is completely cured, the anti-deformation tool 2 is removed from the circular shell 1, and the annular transformer is obtained.

[0033] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for potting a circular casing for a ring transformer, characterized in that: It includes a circular outer shell (1), and a transformer is installed inside the circular outer shell (1); Anti-deformation fixture (2) is located on the top of the circular shell (1) and is inserted into the circular shell (1).

2. The ring transformer potting circular casing device according to claim 1, characterized in that: The anti-deformation tooling (2) includes a constraint ring (21), which is coaxially sleeved on the top of the circular outer shell (1); The limiting ring (22) is coaxially disposed on the top of the constraint ring (21) and fits against the top surface of the circular shell (1).

3. The ring transformer potting circular casing device according to claim 2, characterized in that: The anti-deformation tooling (2) also includes a lead wire slot (23), the bottom wall of which is flush with the top surface of the circular outer shell (1).

4. The ring transformer potting circular casing device according to claim 1, characterized in that: The circular outer shell (1) includes a potting base plate (11). A potting ring (12) is disposed on the potting base plate (11); Positioning post (13) is coaxially disposed inside the potting ring (12) and fixedly connected to the potting base plate (11).

5. The ring transformer potting circular casing device according to claim 4, characterized in that: The circular outer shell (1) also includes a mounting hole (14) that coaxially passes through the positioning post (13).

6. The ring transformer potting circular casing device according to claim 5, characterized in that: The cross-section of the mounting hole (14) is convex.

7. The annular transformer potting circular casing device according to claim 6, characterized in that: The potting base plate (11), the potting ring (12), the positioning post (13), and the mounting hole (14) are integrally injection molded.

8. The ring transformer potting circular casing device according to claim 1, characterized in that: The anti-deformation tooling (2) is made of aluminum alloy.

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