Novel voltage transformer

Abstract

The utility model provides a novel voltage transformer which comprises a winding shell, a connecting seat is fixedly arranged at the top of the winding shell, an insulating sleeve is detachably arranged on the connecting seat, an umbrella skirt is arranged on the outer side of the insulating sleeve, and a wiring terminal is arranged at the top end of the insulating sleeve. The connecting seat is provided with an external thread connecting end, and a conductive column is arranged in the external thread connecting end; the bottom end of the insulating sleeve is provided with an internal thread connecting end matched with the external thread connecting end, a binding post is arranged in the insulating sleeve, the wiring terminal is arranged at one end of the binding post, and the other end of the binding post corresponds to the conductive post; according to the utility model, the insulating sleeve is assembled on the connecting seat, and the end part of the binding post is abutted against the end part of the conductive main body for conduction, so that conduction between the binding post and the winding is realized, and when the insulating sleeve breaks down or is damaged, the insulating sleeve can be detached from the connecting seat for independent replacement, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and in particular relates to a novel voltage transformer. Background Art

[0002] A voltage transformer is similar to a transformer and is an instrument used to transform voltage. The basic structure of a voltage transformer is very similar to that of a transformer. It also has two windings, one called the primary winding and the other called the secondary winding. Both windings are mounted or wound on an iron core. There is insulation between the two windings and between the windings and the iron core, so that there is electrical isolation between the two windings and between the windings and the iron core.

[0003] In the prior art, both windings are arranged inside the winding shell, a terminal is arranged on the top of the winding shell, an insulating sleeve is arranged on the outside of the terminal, and sheds are evenly arranged on the outside of the insulating sleeve. For example, the Chinese utility model patent document with authorization announcement number CN217822295U discloses an outdoor combined voltage transformer; wherein the insulating sleeve, shed and winding shell are all integrated structures. When the insulating sleeve fails, it cannot be replaced alone, but needs to be replaced as a whole, and the maintenance cost is high.

[0004] Therefore, it is necessary to design a new type of voltage transformer with a detachable connection between the insulating sleeve and the winding housing, which is convenient for removing and replacing the insulating sleeve separately and reduces maintenance costs to solve the current technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides a novel voltage transformer with a detachable connection between an insulating sleeve and a winding housing, which facilitates the separate disassembly and replacement of the insulating sleeve and reduces maintenance costs.

[0006] The technical solution of the utility model is: a novel voltage transformer, comprising a winding shell, a connecting seat is fixedly arranged on the top of the winding shell, an insulating sleeve is detachably arranged on the connecting seat, an umbrella skirt is arranged on the outer side of the insulating sleeve, and a wiring terminal is arranged on the top of the insulating sleeve; the connecting seat has an external threaded connecting end, and a conductive column is arranged inside the external threaded connecting end; the bottom end of the insulating sleeve has an internal threaded connecting end matching the external threaded connecting end, a wiring column is arranged inside the insulating sleeve, the wiring terminal is arranged at one end of the wiring column, and the other end of the wiring column corresponds to the conductive column.

[0007] A docking channel is provided inside the connection seat, and the conductive column is slidably arranged inside the docking channel. An elastic support component is provided on the outside of the conductive column, and the elastic support component is used to provide elastic force for the conductive column to keep it in close contact with the end of the terminal.

[0008] A push ring is fixedly arranged on the outer side of the conductive column, a slide groove matching the push ring is opened inside the positioning seat, and a spring is arranged between the push ring and the inner bottom of the slide groove.

[0009] The spring is a wave spring or a coil spring.

[0010] An insulating filling layer is arranged between the terminal and the insulating sleeve.

[0011] The insulating filling layer is an epoxy resin filling layer.

[0012] A sleeve bottom plate is arranged inside the end of the insulating sleeve close to the internal thread connection end, and a pouring hole is opened on the sleeve bottom plate.

[0013] A sealing ring is fixedly arranged at the bottom of the sleeve bottom plate.

[0014] Beneficial effects of the utility model: In the utility model, the insulating sleeve is assembled on the connecting seat, the end of the terminal post abuts against the end of the conductive main for conduction, thereby realizing conduction between the terminal and the winding; when the insulating sleeve fails or is damaged, the insulating sleeve can be removed from the connecting seat and replaced separately, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the new voltage transformer in the utility model.

[0016] Figure 2 It is a schematic diagram of the mechanism of the insulating sleeve in the utility model.

[0017] Figure 3 for Figure 2 Cross-section view at AA in the middle.

[0018] Figure 4 It is a structural schematic diagram of the connecting seat in the utility model. DETAILED DESCRIPTION

[0019] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to be any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limitations.

[0020] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1 to 4 As shown, the novel voltage transformer comprises a winding housing 1, a connection seat 5 is fixedly provided on the top of the winding housing 1, an insulating sleeve 2 is detachably provided on the connection seat 5, an shed 3 is provided on the outside of the insulating sleeve 2, and a terminal 4 is provided on the top of the insulating sleeve 2; the connection seat 5 has an external thread connection end 51, a conductive column 54 is provided inside the external thread connection end 51, and the bottom end of the conductive column 54 is connected and conducted with the end of the winding; the bottom end of the insulating sleeve 2 has an internal thread connection end 22 matching the external thread connection end 51, a terminal 41 is provided inside the insulating sleeve 2, and the terminal 4 is provided at one end of the terminal 41, and the other end of the terminal 41 corresponds to the conductive column 54; in this embodiment, the insulating sleeve 2 is assembled on the connection seat 5, the end of the terminal 41 is abutted against the end of the conductive main 54 for conduction, so as to realize the conduction between the terminal 4 and the winding, and when the insulating sleeve 2 fails or is damaged, the insulating sleeve 2 can be removed from the connection seat 5 for replacement separately, thereby reducing the maintenance cost.

[0022] In some embodiments, a docking hole 52 is opened inside the connecting seat 5, and a conductive column 54 is slidably set inside the docking hole 52. An elastic support component is set on the outside of the conductive column 54. The elastic support component is used to provide elastic force to keep the conductive column 54 close to the end of the terminal. The docking hole 52 can position the lower end of the terminal 41. At the same time, the elastic force of the elastic support component on the conductive column 54 can keep the conductive column 5 and the end of the terminal 41 in a tight and conductive state without being affected by thermal expansion and contraction of objects.

[0023] In some embodiments, a push ring 53 is fixedly provided on the outer side of the conductive column 54, a slide groove 55 matching the push ring 53 is opened inside the positioning seat 5, and a spring 56 is provided between the push ring 5 and the inner bottom of the slide groove 55. The spring 56 applies elastic force between the push ring 5 and the inner bottom of the slide groove 55, so that the conductive column 54 is subjected to the elastic force to move toward the terminal 41. When the terminal 41 is inserted into the docking channel 52, the conductive column 54 moves and the spring 56 is compressed. Under the action of the elastic force of the spring 56, the conductive column 54 remains in close contact with the terminal 41.

[0024] In some embodiments, the spring 56 is a wave spring or a coil spring, preferably a wave spring, which requires less installation space.

[0025] In some embodiments, an insulating filling layer 21 is provided between the terminal post 41 and the insulating sleeve 2. The insulating filling layer 21 can improve the insulation performance between the terminal post 41 and the insulating sleeve 2, while increasing the supporting strength between the terminal post 41 and the insulating sleeve 2; specifically, the insulating filling layer 21 is an epoxy resin filling layer.

[0026] In some embodiments, a sleeve bottom plate 23 is disposed inside one end of the insulating sleeve 2 close to the internal threaded connection end 22 , and a pouring hole is opened on the sleeve bottom plate 23 , through which epoxy resin can be poured into the interior of the insulating sleeve 2 .

[0027] In some embodiments, a sealing ring 6 is fixedly provided at the bottom of the sleeve bottom plate 23 , and the sealing ring 6 can improve the sealing between the insulating sleeve 2 and the connecting seat 5 .

[0028] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0029] The above-mentioned embodiments only express some implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A new type of voltage transformer, characterized in that: It comprises a winding shell, a connection seat is fixedly arranged on the top of the winding shell, an insulating sleeve is detachably arranged on the connection seat, an umbrella skirt is arranged on the outer side of the insulating sleeve, and a connection terminal is arranged on the top of the insulating sleeve; The connection seat has an external thread connection end, and a conductive column is arranged inside the external thread connection end; The bottom end of the insulating sleeve has an internal thread connection end matching the external thread connection end, a terminal is arranged inside the insulating sleeve, the terminal is arranged at one end of the terminal, and the other end of the terminal corresponds to the conductive post.

2. The novel voltage transformer according to claim 1 is characterized in that: A docking channel is provided inside the connection seat, and the conductive column is slidably arranged inside the docking channel. An elastic support component is provided on the outside of the conductive column, and the elastic support component is used to provide elastic force for the conductive column to keep it in close contact with the end of the terminal.

3. The new voltage transformer according to claim 2 is characterized in that: A push ring is fixedly arranged on the outer side of the conductive column, a slide groove matching the push ring is opened inside the connecting seat, and a spring is arranged between the push ring and the inner bottom of the slide groove.

4. The novel voltage transformer according to claim 3 is characterized in that: The spring is a wave spring or a coil spring.

5. The novel voltage transformer according to claim 1 is characterized in that: An insulating filling layer is arranged between the terminal and the insulating sleeve.

6. The novel voltage transformer according to claim 5 is characterized in that: The insulating filling layer is an epoxy resin filling layer.

7. The novel voltage transformer according to claim 6 is characterized in that: A sleeve bottom plate is arranged inside the end of the insulating sleeve close to the internal thread connection end, and a pouring hole is opened on the sleeve bottom plate.

8. The novel voltage transformer according to claim 7 is characterized in that: A sealing ring is fixedly arranged at the bottom of the sleeve bottom plate.

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