A vacuum bubble base

Abstract

This application relates to the technical field of vacuum circuit breakers and discloses a vacuum bulb base, including a base body for connecting with a vacuum bulb; a heat dissipation mechanism disposed on the base body for dissipating heat from the base body; and a protection plate disposed on the base body and located on top of the heat dissipation mechanism. With the protection plate provided, the heat dissipation mechanism is shielded by the protection plate, reducing the amount of dust falling on the heat dissipation mechanism, thereby reducing the impact of dust on the heat dissipation capacity of the heat dissipation mechanism and solving the problem of the decline in the heat dissipation capacity of the vacuum bulb base after long-term use.

Description

Technical Field

[0001] This application relates to the technical field of vacuum circuit breakers, and specifically to a vacuum bulb base. Background Art

[0002] As an important device for control and protection, a vacuum circuit breaker is an electrical device used in power supply power stations, substations, and transformer substations, etc. It is mainly used for opening the distribution network and closing the load current, overload current, and short-circuit current in the power system. Existing vacuum circuit breakers are prone to overheating and damage under high loads, and the biggest hidden danger lies in the position of the vacuum bulb base of the vacuum circuit breaker.

[0003] In the prior art, the vacuum bulb base includes a base body and heat sinks provided on the base body. The setting of the heat sinks increases the heat dissipation area of the base body, thereby enhancing the heat dissipation capacity of the base body. However, after long-term use, dust often adheres to the base body and the heat sinks, resulting in a decrease in the heat dissipation capacity of the base body and the heat sinks, and thus the vacuum circuit breaker is prone to overheating under high loads. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, this application provides a vacuum bulb base, which solves the problem of the decrease in the heat dissipation capacity of the vacuum bulb base after long-term use.

[0005] To achieve the above object, this application provides the following technical solution: A vacuum bulb base, comprising:

[0006] A base body for connecting with the vacuum bulb;

[0007] A heat dissipation mechanism provided on the base body for dissipating heat from the base body;

[0008] A protective plate provided on the base body and located on top of the heat dissipation mechanism.

[0009] Preferably, the heat dissipation mechanism includes a plurality of first heat dissipation fins, and all of the plurality of first heat dissipation fins are fixedly connected to the base body.

[0010] Preferably, the heat dissipation mechanism includes a plurality of second heat dissipation fins, and all of the plurality of second heat dissipation fins are fixedly connected to the base body.

[0011] Preferably, the second heat dissipation fin includes a connecting portion and a shielding portion. One end of the connecting portion is fixedly connected to the base body, the shielding portion is provided at the end of the connecting portion away from the base body, and a hydrophobic hole is provided on the shielding portion.

[0012] Preferably, a water diversion groove is formed in the connecting portion, and the water diversion groove is communicated with the hydrophobic holes.

[0013] Preferably, a plurality of heat dissipation holes are formed in the protection plate.

[0014] Preferably, the cross-sectional area of the top opening of the heat dissipation hole is smaller than that of the bottom opening of the heat dissipation hole.

[0015] Preferably, a plurality of threaded holes for connecting with a circuit breaker are formed in the bottom of the base body.

[0016] Preferably, a receiving groove is formed in the top of the base body, and threads for connecting with a vacuum bulb are provided on the groove wall of the receiving groove.

[0017] Preferably, a relief groove is further formed in the top of the base body, the relief groove is communicated with the receiving groove, and a sealing gasket is provided on the groove wall of the relief groove.

[0018] The present application provides a vacuum bulb base, which has the following beneficial effects:

[0019] (1) For this vacuum bulb base, by providing a protection plate to shield the heat dissipation mechanism with the protection plate, the amount of dust falling on the heat dissipation mechanism is reduced, thereby reducing the influence of dust on the heat dissipation capacity of the heat dissipation mechanism, and solving the problem that the heat dissipation capacity of the vacuum bulb base decreases after long-term use.

[0020] (2) For this vacuum bulb base, by providing a protection plate and fixedly connecting the protection plate to the base body, the heat on the base body can be transferred to the protection plate, so that the protection plate itself also dissipates heat for the base body, increasing the heat dissipation area of the base body, thereby improving the heat dissipation capacity of the base body. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present application.

[0023] Figure 2 It is a schematic diagram of the overall structure of the other side of Embodiment 1 of the present application.

[0024] Figure 3 It is a cross-sectional view of Embodiment 1 of the present application.

[0025] Figure 4 This is a schematic structural diagram of the base body and the second heat dissipation fin in Embodiment 1 of the present application.

[0026] Figure 5 This is a schematic structural diagram of the base body and the first heat dissipation fin in Embodiment 2 of the present application.

[0027] In the figure: 1. Base body; 2. Conductive rod; 3. Inner lining; 4. Gasket; 5. Threaded hole; 6. First heat dissipation fin; 7. Protective plate; 8. Heat dissipation hole; 9. Second heat dissipation fin; 10. Accommodating groove; 11. Relief groove; 12. Sealing gasket; 13. Baffle part; 14. Side skirt part; 15. Connecting part; 16. Shielding part; 17. Hydrophobic hole; 18. Water guiding groove. Detailed implementation manners

[0028] To make the application purpose, features, and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0030] The following is combined with the attached Figure 1 - Attached Figure 5 And the technical solutions of the present application will be further described through specific implementation manners.

[0031] Embodiment 1:

[0032] Please refer to Figure 1 And Figure 2 , the present application provides a technical solution: a vacuum bulb base, including a base body 1, a heat dissipation mechanism, and a protective plate 7. The base body 1 is used to support the vacuum bulb. The base body 1 is arranged in a cylindrical shape, and the axis of the base body 1 is arranged in the vertical direction. A conductive rod 2 is fixedly connected to the base body 1. The conductive rod 2 is used to connect with the vacuum bulb. The conductive rod 2 is also arranged in a cylindrical shape. The axis of the conductive rod 2 coincides with the axis of the base body 1, and the conductive rod 2 penetrates the base body 1.

[0033] Please refer to Figure 2 AndFigure 3 On the top of the base body 1, a receiving groove 10 and a relief groove 11 are provided. The groove wall of the relief groove 11 is curved, and the groove wall of the relief groove 11 is connected to the groove wall of the receiving groove 10, so that the relief groove 11 communicates with the receiving groove 10. A sealing gasket 12 is covered on the groove wall of the relief groove 11. The sealing gasket 12 is made of an elastic material and is adhesively fixed to the groove wall of the relief groove 11. By adhesively bonding the sealing gasket 12 to the groove wall of the relief groove 11, the connection between the vacuum bubble and the base body 1 can be made more tight. A thread for threaded connection with the vacuum bubble is integrally formed on the groove wall of the receiving groove 10. An inner lining 3 for restricting the movement of the vacuum bubble and a gasket 4 for abutting against the vacuum bubble are integrally formed on the bottom of the receiving groove 10. By threadedly connecting the vacuum bubble with the base body 1 and restricting the movement of the vacuum bubble through the inner lining 3 and the gasket 4, not only can the connection between the vacuum bubble and the base body 1 be made tight, but also the shaking of the vacuum bubble relative to the base body 1 can be reduced, improving the stability when the vacuum bubble is connected to the base body 1.

[0034] Please refer to Figure 1 and Figure 3 , a plurality of threaded holes 5 are provided on the bottom of the base body 1. In this embodiment, the number of the threaded holes 5 is set to four, and the four threaded holes 5 are equidistantly arranged along the circumference of the base body 1. By using an external bolt to be in threaded cooperation with the threaded hole 5, the base body 1 can be fixedly connected to the vacuum circuit breaker.

[0035] Please refer to Figure 2 and Figure 3 , a protective plate 7 is fixedly connected to the side of the base body 1. The protective plate 7 includes a baffle part 13 and a side skirt part 14. The baffle part 13 is circularly arranged, and the inner ring surface of the baffle part 13 is welded and fixed to the side of the base body 1. A plurality of heat dissipation holes 8 are provided on the baffle part 13. The plurality of heat dissipation holes 8 are equidistantly arranged along the circumference of the base body 1, and the plurality of heat dissipation holes 8 all penetrate through the baffle part 13 in the vertical direction. The cross section of the heat dissipation hole 8 is oblong, and the hole wall of the heat dissipation hole 8 is inclined, so that the cross-sectional area of the top opening of the heat dissipation hole 8 is smaller than the cross-sectional area of the bottom opening of the heat dissipation hole 8. The provision of the heat dissipation holes 8 not only increases the heat dissipation capacity of the protective plate 7 itself, but also enables the air heated by the heat dissipation mechanism to be discharged from the heat dissipation holes 8, enhancing the heat dissipation capacity of the heat dissipation mechanism. By inclining the hole wall of the heat dissipation hole 8, while ensuring the discharge of the air heated by the heat dissipation mechanism, the occurrence of rainwater leaking into the heat dissipation mechanism from the heat dissipation holes 8 is reduced, and the probability of the heat dissipation mechanism being corroded by rainwater is reduced. The side skirt part 14 is connected to the outer ring surface of the baffle part 13. The upper surface of the side skirt part 14 is an inclined surface that slopes downward. The side skirt part 14 is beneficial to further block the dust falling onto the heat dissipation mechanism.

[0036] By providing the protective plate 7, the heat dissipation mechanism is shielded by the protective plate 7, reducing the amount of dust falling on the heat dissipation mechanism, thereby reducing the impact of dust on the heat dissipation capacity of the heat dissipation mechanism, and solving the problem of the decline in the heat dissipation capacity of the vacuum bubble base after long-term use. In addition, since the protective plate 7 is fixedly connected to the base body 1, the heat on the base body 1 can be transferred to the protective plate 7, enabling the protective plate 7 itself to dissipate heat for the base body 1, increasing the heat dissipation area of the base body 1, and thus enhancing the heat dissipation capacity of the base body 1.

[0037] Please refer to Figure 3 and Figure 4 , the heat dissipation mechanism includes a plurality of first heat dissipation fins 6 and a plurality of second heat dissipation fins 9. The plurality of first heat dissipation fins 6 and the plurality of second heat dissipation fins 9 are both fixedly connected to the side surface of the base body 1. The plurality of first heat dissipation fins 6 are arranged at equal intervals along the circumferential direction of the base body 1, and the plurality of second heat dissipation fins 9 are arranged at equal intervals along the circumferential direction of the base body 1. The second heat dissipation fins 9 are located on the side of the first heat dissipation fins 6 close to the protective plate 7. The arrangement of the first heat dissipation fins 6 and the second heat dissipation fins 9 increases the heat dissipation area of the base body 1 and enhances the heat dissipation capacity of the base body 1. The second heat dissipation fin 9 includes a connecting portion 15 and a shielding portion 16. The connecting portion 15 is inclined, one end of the connecting portion 15 is fixedly connected to the side surface of the base body 1, and the shielding portion 16 is fixedly connected to the end of the connecting portion 15 away from the base body 1. A hydrophobic hole 17 is formed in the shielding portion 16 in the vertical direction, and a water guiding groove 18 is formed in the top side of the connecting portion 15. The water guiding groove 18 is communicated with the hydrophobic hole 17. The second heat dissipation fins 9 correspond to the heat dissipation holes 8 one by one, so that the water falling into the heat dissipation holes 8 can fall into the water guiding groove 18 and finally be discharged through the hydrophobic hole 17 via the water guiding groove 18, which is beneficial to reducing the corrosion of the first heat dissipation fins 6 and the second heat dissipation fins 9 by rainwater.

[0038] Embodiment 2:

[0039] Please refer to Figure 5 , the difference between this embodiment and Embodiment 1 is that: the first heat dissipation fins 6 are different. In this embodiment, the first heat dissipation fins 6 and the second heat dissipation fins 9 are arranged staggered in the vertical direction, and the heights of four first heat dissipation fins 6 are higher than the remaining ordinary first heat dissipation fins 6. The four first heat dissipation fins 6 are arranged at equal intervals along the circumferential direction of the base body 1. The four first heat dissipation fins 6 can pass through the gaps between the second heat dissipation fins 9 and abut against the protective plate 7. By connecting some of the first heat dissipation fins 6 to the protective plate 7, not only the connection stability of the protective plate 7 is enhanced, but also the heat dissipation capacity of the first heat dissipation fins 6 is enhanced.

[0040] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

[0042] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent substitutions for some of the technical features; and these 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 various embodiments of the present application.

Claims

1. A vacuum bubble base, characterized in that, Comprising: A base body (1), the base body (1) being used for connecting with a vacuum bulb; A heat dissipation mechanism, the heat dissipation mechanism being arranged on the base body (1), the heat dissipation mechanism being used for dissipating heat from the base body (1); A protective plate (7), the protective plate (7) being arranged on the base body (1), the protective plate (7) being located on top of the heat dissipation mechanism; The heat dissipation mechanism includes a plurality of second heat dissipation fins (9), and the plurality of second heat dissipation fins (9) are all fixedly connected to the base body (1); The second heat dissipation fin (9) includes a connecting portion (15) and a shielding portion (16), one end of the connecting portion (15) is fixedly connected to the base body (1), the shielding portion (16) is arranged at the end of the connecting portion (15) away from the base body (1), and a hydrophobic hole (17) is formed in the shielding portion (16).

2. The vacuum bubble base according to claim 1, characterized in that, The heat dissipation mechanism includes a plurality of first heat dissipation fins (6), and the plurality of first heat dissipation fins (6) are all fixedly connected to the base body (1).

3. A vacuum bubble base according to claim 1, characterized in that, A water guiding groove (18) is formed in the connecting portion (15), and the water guiding groove (18) is communicated with the hydrophobic hole (17).

4. A vacuum bubble base according to claim 1, characterized in that, A plurality of heat dissipation holes (8) are formed in the protective plate (7).

5. A vacuum bubble base according to claim 4, characterized in that, The cross-sectional area of the top opening of the heat dissipation hole (8) is smaller than the cross-sectional area of the bottom opening of the heat dissipation hole (8).

6. The vacuum bubble base according to claim 1, characterized in that, A plurality of threaded holes (5) for connecting with a circuit breaker are formed in the bottom of the base body (1).

7. A vacuum bubble base according to claim 1, characterized in that, A receiving groove (10) is formed in the top of the base body (1), and threads for connecting with a vacuum bulb are arranged on the groove wall of the receiving groove (10).

8. A vacuum bubble base according to claim 7, characterized in that, A relief groove (11) is further formed in the top of the base body (1), the relief groove (11) is communicated with the receiving groove (10), and a sealing gasket (12) is arranged on the groove wall of the relief groove (11).

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