Fuse tight connecting seat for transformer
A technology of fuses and transformers, applied in the field of electricity, can solve problems such as fuse loosening, corrosion, and affecting the reliability of electrical connections, etc., and achieve the effect of tight and firm fit and waterproof sealing
Active Publication Date: 2015-02-04
SHANGHAI RITCHEY ELECTRICAL EQUIP
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- Application Information
AI Technical Summary
Problems solved by technology
When the transformer is buried underground, the change of pressure often makes the fuse loose in the connection seat, and at the same time, the external liquid easily penetrates into the connection seat, causing corrosion
Affect the reliability of the electrical connection
Method used
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Embodiment Construction
[0015] Such as figure 1 As shown, the fuse sealing connection seat for transformer of the present invention is composed of a metal conductor base 1 and an insulating cover 2, wherein a cylindrical cavity 3 is arranged in the metal conductor base 1, and the cylindrical cavity The inner diameter of the upper part of the cavity 3 is smaller than the inner diameter of the lower part, the upper part and the lower part of the cylindrical cavity 3 transition through a radial step surface 4, and a threaded section 5 is arranged on the outer side of the upper part of the metal conductor base 1, and the metal threaded section 5 above The outer side of the conductor base 1 is provided with a conical surface 6, the said conical surface 6 faces the upper end of the metal conductor base 1, the upper side wall of the metal conductor base 1 is provided with more than two cracks 7, any one of the The extension directions of the cracks 7 are all parallel to the axial direction of the cylindrica...
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The invention discloses a fuse tight connecting seat for a transformer. The fuse tight connecting seat for the transformer consists of a metal conductor pedestal and an insulating cover, wherein a cylindrical accommodating cavity is formed in the pedestal; the internal diameter of the upper part of the accommodating cavity is less than the internal diameter of the lower part of the accommodating cavity; the upper part of the accommodating cavity is in transition with the lower part of the accommodating cavity through a radial stepped surface; a threaded section is arranged on the outer side of the upper part of the pedestal; a conical surface is arranged above the threaded section; the side wall of the upper part of the pedestal is provided with more than two cracks; an inner cavity is formed in the insulating cover; the upper end of the inner cavity is closed, and the inner wall of the lower part of the inner cavity is provided with threads; the insulating cover is connected with the upper part of the pedestal through the threads; the inner wall of the upper part of the inner cavity is provided with a conical surface; the minimum diameter of the conical surface on the upper part of the inner cavity is less than the maximum diameter of the conical surface on the outer side of the upper part of the pedestal; the lower part of the metal conductor pedestal is fixedly connected with a fuse connecting terminal of the transformer; a fuse is arranged in the metal conductor pedestal; the insulating cover is connected with the metal conductor pedestal through threads; and the conical surface in the insulating cover makes the upper end of the metal conductor pedestal shrink and deform in the radial direction. The fuse tight connecting seat is tightly and firmly matched with the fuse, and water-proof sealing is realized.
Description
technical field [0001] The invention relates to the electrical field, in particular to a transformer, in particular to a fuse sealing connection seat for a transformer. Background technique [0002] In the prior art, the transformer is provided with a fuse, and the fuse is connected to the transformer housing through a connecting seat. When the transformer is buried underground, the change of pressure often makes the fuse loose in the connecting seat, and at the same time, the external liquid easily penetrates into the connecting seat, causing corrosion. Affect the reliability of the electrical connection. Contents of the invention [0003] The object of the present invention is to provide a fuse sealing connection seat for transformers, the fuse sealing connection seat for transformers is to solve the technical problem of unreliable sealing of transformer fuse connection seats in the prior art . [0004] The fuse sealing connection seat for transformer of the present i...
Claims
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IPC IPC(8): H01H85/20H01F27/40
Inventor 徐兴财
Owner SHANGHAI RITCHEY ELECTRICAL EQUIP