A capacitor impregnated joint

Abstract

The utility model discloses a capacitor impregnation joint, including an oil filling module and an oil delivery module, wherein the oil filling module includes a cavity tube, an oil inlet joint connected and communicated with the cavity tube, an oil seal threadedly connected to the oil inlet joint, and an oil delivery module, wherein the oil delivery module includes a rubber sleeve wrapped around the outer end of the oil inlet joint. In the utility model, the oil seal is opened, and then the outer end of the rubber sleeve is sleeved on the oil outlet end of the external oil delivery structure, and then the rubber sleeve is pinched by hand, and then oil is injected into the oil inlet joint. Under the guidance of the inner wall of the rubber sleeve, the oil directly enters the cavity tube, and then the outer end of the rubber sleeve is continued to be gripped, and the staff pushes the T-bar, and then the oil scraper moves and scrapes the oil on the inner end surface of the rubber sleeve, so that the oil will not be retained at the outer end of the oil inlet joint, and then the outer end of the rubber sleeve is loosened, the oil seal is tightened, and then the oil scraper is controlled to reset, effectively preventing oil leakage and avoiding the cavity tube from being contaminated.

Description

Technical Field

[0001] The utility model relates to the technical field of impregnated joints, in particular to an impregnated joint for a capacitor. Background Art

[0002] Power capacitors are important equipment widely used in power systems and other electrical devices. For power capacitors, vacuum impregnation treatment is a key process related to the performance, quality, technical and economic indicators and reliability of power capacitors.

[0003] Production process.

[0004] Application number CN202320635745.X provides a vacuum impregnation joint for power capacitors; oil is injected through the oil inlet joint and injected into the power capacitor from the oil outlet at the lower end of the base. The air, water vapor, etc. in the product can be discharged from the opening on the cavity tube. After the oil injection is completed, the oil injection system stops supplying oil. The stored oil in the cavity tube can compensate for the oil volume inside the capacitor. The whole process is degassing and oil injection at the same time, which is convenient and intuitive, easy to operate, and at the same time reduces the contact area of ​​the oil, reduces the volatilization of oil vapor, improves the vacuum degree of the product during oil injection, and further improves the product quality. However, in this application, the oil can easily flow out from the oil inlet joint at the moment after the oil injection is completed, and then contaminates the connecting column and other structures, causing inconvenience to the use. Utility Model Content

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in this utility model is:

[0007] A capacitor impregnation joint comprises an oil injection module and an oil delivery module, wherein the oil injection module comprises a cavity tube, an oil inlet joint connected and communicated with the cavity tube, an oil seal threadedly connected to the oil inlet joint, and an oil delivery module, wherein the oil delivery module comprises a rubber sleeve wrapped around the outer end of the oil inlet joint, a U-shaped plate installed on the outer side of the oil seal, a T-shaped rod slidingly passing through the U-shaped plate, and an oil scraper connected to the inner end of the T-shaped rod, wherein the oil scraper is buckled with the oil seal, and the outer wall of the rubber sleeve is in contact with the inner wall of the oil seal.

[0008] By adopting the above technical solution, the oil seal is opened, and then the outer end of the rubber sleeve is put on the oil outlet end of the external oil delivery structure, and then the rubber sleeve is pinched by hand, and then oil is injected into the oil inlet joint. Under the guidance of the inner wall of the rubber sleeve, the oil directly enters the cavity tube, and then the outer end of the rubber sleeve is continued to be held tightly. The staff pushes the T-shaped rod, and then the oil scraper moves and scrapes off the oil on the inner end surface of the rubber sleeve to prevent the oil from being retained at the outer end of the oil inlet joint. Then the outer end of the rubber sleeve is loosened, the oil seal is tightened, and then the oil scraper is controlled to reset, which effectively prevents oil leakage and avoids the cavity tube from being dirty.

[0009] In a preferred example, the present invention can be further configured as follows: the U-shaped plate and the oil seal are integrally formed, and the U-shaped plate is made of stainless steel.

[0010] In a preferred example, the utility model can be further configured as follows: the oil scraper is made of the same material as the oil seal.

[0011] In a preferred example, the utility model can be further configured as follows: the diameter of the oil scraper plate is equal to the inner diameter of the rubber sleeve.

[0012] In a preferred example, the utility model can be further configured as follows: a reinforcing rib is installed inside the oil inlet joint, and the reinforcing rib is located on the inner side of the rubber sleeve.

[0013] In a preferred example, the utility model can be further configured as follows: the distance between the oil inlet connector and the lower end surface of the cavity tube is 0-20 mm.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] In the utility model, the oil seal is opened, and then the outer end of the rubber sleeve is sleeved on the oil outlet end of the external oil delivery structure, and then the rubber sleeve is pinched by hand, and then oil is injected into the oil inlet joint. Under the guidance of the inner wall of the rubber sleeve, the oil directly enters the cavity tube, and then the outer end of the rubber sleeve is continued to be squeezed, and the staff pushes the T-shaped rod, and then the oil scraper moves and scrapes off the oil on the inner end surface of the rubber sleeve, so that the oil will not be retained at the outer end of the oil inlet joint, and then the outer end of the rubber sleeve is loosened, the oil seal is tightened, and then the oil scraper is controlled to reset, which effectively prevents oil leakage and avoids the cavity tube from being dirty. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the oil injection module of the utility model;

[0018] Figure 3 This is a schematic diagram of the oil delivery module of the utility model.

[0019] Reference numerals:

[0020] 100, oil injection module; 110, cavity tube; 120, oil inlet connector; 130, oil seal;

[0021] 200, oil delivery module; 210, rubber sleeve; 220, U-shaped plate; 230, T-shaped rod; 240, oil scraper;

[0022] 300. Strengthen the ribs. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0025] A capacitor impregnation joint provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings. Embodiment 1

[0026] Combination Figure 1-3 As shown, the utility model provides a capacitor impregnation joint, including an oil injection module 100 and an oil delivery module 200, wherein the oil injection module 100 includes a cavity tube 110, an oil inlet joint 120 connected and communicated with the cavity tube 110, and an oil seal 130 threadedly connected to the oil inlet joint 120;

[0027] The oil delivery module 200 includes a rubber sleeve 210 wrapped around the outer end of the oil inlet joint 120, a U-shaped plate 220 installed on the outside of the oil seal 130, a T-shaped rod 230 slidingly passing through the U-shaped plate 220, and an oil scraper 240 connected to the inner end of the T-shaped rod 230. The oil scraper 240 is buckled with the oil seal 130, and the outer wall of the rubber sleeve 210 is in contact with the inner wall of the oil seal 130.

[0028] Furthermore, the U-shaped plate 220 is integrally formed with the oil seal 130 , and the U-shaped plate 220 is made of stainless steel. The U-shaped plate 220 made of stainless steel can firmly support the T-shaped rod 230 on the one hand, and on the other hand, there is no need to worry about the friction of the T-shaped rod 230 .

[0029] Furthermore, the diameter of the oil scraper plate 240 is equal to the inner diameter of the rubber sleeve 210 . This size design ensures that when the oil scraper plate 240 moves into the oil inlet connector 120 , the oil on the inner wall of the rubber sleeve 210 can be scraped off.

[0030] Furthermore, the distance between the oil inlet connector 120 and the lower end surface of the cavity tube 110 is 0-20 mm. This dimension design ensures the aesthetics of the component. Embodiment 2

[0031] Combination Figure 1-3 As shown, based on the first embodiment, the scraper plate 240 is made of the same material as the oil seal 130. Using the same material can reduce the difficulty of material selection when manufacturing the scraper plate 240 and the oil seal 130, making them easier to manufacture. Embodiment 3

[0032] Combination Figure 2-3 As shown, in the above embodiment, a reinforcing rib 300 is installed inside the oil inlet connector 120, and the reinforcing rib 300 is located on the inner side of the rubber sleeve 210. The reinforcing rib 300 can reinforce the rubber sleeve 210 on the one hand, and support the inside of the oil inlet connector 120 on the other hand, thereby reducing the probability of deformation of the oil inlet connector 120.

[0033] The working principle and use process of the utility model are as follows: when the device is put into actual use, the oil seal 130 is opened, and then the outer end of the rubber sleeve 210 is sleeved on the oil outlet end of the external oil delivery structure, and then the rubber sleeve 210 is pinched by hand, and then oil is injected into the oil inlet joint 120. Under the guidance of the inner wall of the rubber sleeve 210, the oil directly enters the cavity tube 110. During this process, the outer end of the rubber sleeve 210 will not contact the oil. After the oil injection is completed, the outer end of the rubber sleeve 210 is continued to be gripped, and then the staff pushes the T-shaped rod 230, and then the oil scraper 240 moves and scrapes off the oil on the inner end surface of the rubber sleeve 210, so that the oil will not be retained at the outer end of the oil inlet joint 120, and then the rubber sleeve 210 is loosened, and the rubber sleeve 210 is turned outward again. After the outer end of the rubber sleeve 210 is wrapped around the outer wall of the oil inlet joint 120, the oil seal 130 is tightened, and then the oil scraper 240 is reset to effectively prevent oil leakage and avoid the cavity tube 110 from being dirty.

[0034] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A capacitor dip joint, characterized in that: include: An oil injection module (100), the oil injection module (100) comprising a cavity tube (110), an oil inlet joint (120) connected to and in communication with the cavity tube (110), and an oil seal (130) threadedly connected to the oil inlet joint (120); An oil delivery module (200) comprising a rubber sleeve (210) wrapped around the outer end of the oil inlet joint (120), a U-shaped plate (220) mounted on the outer side of the oil seal (130), a T-shaped rod (230) slidingly passing through the U-shaped plate (220), and an oil scraper plate (240) connected to the inner end of the T-shaped rod (230), the oil scraper plate (240) being buckled with the oil seal (130), and the outer wall of the rubber sleeve (210) being in contact with the inner wall of the oil seal (130).

2. A capacitor impregnated joint according to claim 1, characterized in that: The U-shaped plate (220) and the oil seal (130) are integrally formed, and the U-shaped plate (220) is made of stainless steel.

3. The capacitor impregnated joint according to claim 1, characterized in that: The oil scraper plate (240) is made of the same material as the oil seal (130).

4. The capacitor impregnated joint according to claim 1, characterized in that: The diameter of the oil scraper plate (240) is equal to the inner diameter of the rubber sleeve (210).

5. The capacitor impregnation joint according to claim 1, characterized in that: A reinforcing rib (300) is installed inside the oil inlet joint (120), and the reinforcing rib (300) is located inside the rubber sleeve (210).

6. The capacitor impregnated joint according to claim 1, characterized in that: The distance between the oil inlet joint (120) and the lower end surface of the cavity tube (110) is 0-20 mm.

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