CN213366349U

CN213366349U - Binding post and transformer

Info

Publication number: CN213366349U
Application number: CN202022599356.5U
Authority: CN
Inventors: 谭勇; 王书静
Original assignee: NEWONDER SPECIAL ELECTRIC CO Ltd
Current assignee: Beijing Xinte Electrical Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-06-04
Anticipated expiration: 2030-11-11

Abstract

The utility model provides a binding post and transformer. The wiring terminal comprises a sleeve body and a plurality of lead posts, wherein the lead posts are arranged in the sleeve body at intervals, the first ends of the lead posts form an internal connection part connected with a transformer winding, and the second ends of the lead posts form an external connection part connected with external equipment. By applying the technical scheme of the invention, a plurality of lead posts are arranged in one sleeve body, the phase-change transformer windings of the transformer at the internal connection part of the lead posts are connected, and then the external connection parts of the lead posts are connected with the phases of the external equipment, so that the external equipment can be directly connected with the multiphase transformer windings of the transformer after only one sleeve body is installed. The problems that the stress intensity of the shell is reduced and the sealing performance of the shell is damaged due to the fact that the power porcelain bottle is arranged on the shell of the transformer by opening a hole on each phase of transformer winding are solved, and the quality of the shell is guaranteed to a certain extent.

Description

Binding post and transformer

Technical Field

The utility model relates to a transformer technical field particularly, relates to a binding post and transformer.

Background

In a transformer product, in order to lead a lead of a transformer winding of a transformer out of the transformer finally, the lead of the transformer winding is connected out through a power porcelain bottle. Typically, a plurality of openings are formed in the transformer housing, each opening receiving a power insulator, and the terminal post in each power insulator is connected to a phase transformer winding.

Because a plurality of openings are formed in the shell, the power porcelain insulator corresponding to each phase of transformer winding can be independently installed, so that on one hand, the stress intensity of the shell is influenced more, and on the other hand, the sealing performance of the shell can be damaged to a certain degree.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a binding post and transformer to the winding of transformer among the solution prior art connects out the problem of the influence casing quality that causes through a plurality of electric power vase respectively.

In order to achieve the above object, the present invention provides a connection terminal, including: a cannula body; and the lead posts are arranged in the sleeve body at intervals, the first ends of the lead posts form an internal connection part connected with the transformer winding, and the second ends of the lead posts form an external connection part connected with external equipment.

In one embodiment, the sleeve body is formed with a connection portion for connection to a housing of a transformer.

In one embodiment, the terminal further comprises a flange pressing plate abutting against the connecting portion for press-fitting the connecting portion to the housing of the transformer.

In one embodiment, the terminal further includes a sealing member installed between the connection portion and the case of the transformer.

In one embodiment, the connecting portion is formed with a plurality of mounting holes for passing bolts.

In one embodiment, the inscription is hidden within or protrudes from the sleeve body.

In one embodiment, the extension is hidden within or protrudes from the cannula body.

In one embodiment, the female portion and/or the male portion is of a threaded hole structure or a threaded rod structure.

In one embodiment, the plurality of lead posts are disposed at equal angles along the axial center of the sleeve body.

The utility model also provides a transformer, including binding post, binding post is foretell binding post.

Use the technical scheme of the utility model, through at the internal a plurality of lead posts that set up of sleeve, each phase transformer winding of the internal connecting portion transformer of lead post links to each other, and the external portion of rethread lead post links to each other with each of external equipment, just can let the external equipment directly link to each other with the heterogeneous transformer winding of transformer after only installing a sleeve body. The problems that the stress intensity of the shell is reduced and the sealing performance of the shell is damaged due to the fact that the power porcelain bottle is arranged on the shell of the transformer by opening a hole on each phase of transformer winding are solved, and the quality of the shell is guaranteed to a certain extent.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention. In the drawings:

fig. 1 shows a schematic perspective view of an exemplary embodiment of a connecting terminal according to the invention;

fig. 2 shows a left-hand structural representation of the connecting terminal of fig. 1;

fig. 3 shows a schematic sectional view of the connection terminal of fig. 2.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances for describing embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In order to solve the problem of influencing the quality of the housing caused by the fact that the windings of the transformer are respectively connected out through a plurality of power insulators in the prior art, as shown in fig. 1, 2 and 3, the embodiment of the connection terminal of the invention comprises a sleeve body 10 and a plurality of lead posts 20, wherein the lead posts 20 are arranged in the sleeve body 10 at intervals, an internal connection part 22 connected with the windings of the transformer is formed at a first end of each lead post 20, and an external connection part 21 connected with an external device is formed at a second end of each lead post 20.

By applying the technical scheme of the invention, a plurality of lead posts 20 are arranged in one sleeve body 10, the internal connecting parts 22 of the lead posts 20 are connected with each phase transformer winding of the transformer, and then the external connecting parts 21 of the lead posts 20 are connected with each phase of external equipment, so that the external equipment can be directly connected with the multi-phase transformer winding of the transformer after only one sleeve body 10 is installed. The problems that the stress intensity of the shell is reduced and the sealing performance of the shell is damaged due to the fact that the power porcelain bottle is arranged on the shell of the transformer by opening a hole on each phase of transformer winding are solved, and the quality of the shell is guaranteed to a certain extent.

In the technical solution of the present invention, the housing is an oil tank of a transformer, and as another alternative embodiment, the housing may be a housing of another component of the transformer.

As shown in fig. 1 and 3, in the solution of the present embodiment, a connection portion 11 is formed on the sleeve body 10, and the connection portion 11 is used for connecting with a housing of a transformer. As an alternative embodiment, as shown in fig. 1 and 2, a through hole is opened on the connecting portion 11, and the connecting portion 11 is connected to the transformer housing by a bolt. As an alternative embodiment not shown in the figures, the connection 11 may also be directly soldered to the housing of the transformer. As shown in fig. 1 and 3, the connection portion 11 is a flange structure formed on the sleeve body 10.

As a more preferable embodiment, as shown in fig. 3, the terminal further includes a flange pressing plate 12, and the flange pressing plate 12 abuts against the connecting portion 11. When in use, the connecting part 11 is pressed and installed on the shell of the transformer through the flange pressure plate 12, and a sealing effect is achieved. As shown in fig. 1 and 2, a plurality of mounting holes for passing bolts are formed in the connecting portion 11. When the transformer is installed, the bolts penetrate through the installation holes from the flange pressure plate 12 and are connected with the screw threads which are tapped in advance on the shell of the transformer, and the fixing effect is achieved. It should be noted that the number of the mounting holes may be designed accordingly according to the connection strength.

More preferably, the terminal further includes a sealing member installed between the connection part 11 and the case of the transformer. The gap between the connecting terminal and the opening of the shell of the transformer can be sealed through the sealing piece, so that the sealing performance of the shell is more effectively guaranteed.

As shown in fig. 3, in the solution of the present embodiment, the internal connection portion 22 is hidden inside the sleeve body 10, and the external connection portion 21 protrudes from the sleeve body 10. Optionally, the internal connection portion 22 is in a threaded hole structure, and the external connection portion 21 is in a screw structure. As other alternative embodiments, the internal portion 22 may protrude from the sleeve body 10, and the external portion 21 may be hidden inside the sleeve body 10. The specific structures of the internal connection portion 22 and the external connection portion 21 can be adjusted accordingly according to the use requirement.

As another alternative embodiment not shown in the figures, the external connection portion 21 may also be an elastic clamping portion disposed in the casing body 10, that is, after the electrical connection end of the external device is inserted into the external connection portion 21, the external connection portion 21 can clamp the electrical connection end of the external device by its own elasticity. Specifically, the elastic clamping portion can be reasonably designed according to needs. As other alternative embodiments, the extension 21 may protrude from the cannula body 10 to facilitate connection by other mechanical structures.

Fig. 1 to 3 show a connection terminal according to the invention which is suitable for a three-phase voltage transformer, so that three terminal pins 20 are provided. As an embodiment not shown in the drawings, the number of the terminal pins 20 may be adjusted according to the phase number of a specific transformer.

As shown in fig. 3, in a preferred embodiment, a plurality of lead posts 20 are disposed at equal angles along the axial center of the sleeve body 10. Thus, the distances between the plurality of lead posts 20 can be made equal, and the insulating performance between the lead posts 20 can be ensured.

In the solution of the present embodiment, the sleeve body 10 has a cylindrical shape. As another alternative embodiment, a concave-convex gully structure may be formed in the sleeve body 10 to increase creepage distance and enhance insulation performance. The sleeve body 10 may be made of an insulating material such as silicone rubber, or resin casting.

The invention also provides a transformer which comprises the wiring terminal. The transformer may be a dry-type transformer, an oil-immersed transformer, or another type of transformer, and the transformer using the connection terminal may ensure the stress strength of the housing of the transformer and the sealing performance of the housing.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A terminal, comprising:

a sleeve body (10);

the transformer winding comprises a sleeve body (10), a plurality of lead posts (20) arranged in the sleeve body (10) at intervals, wherein an inner connection part (22) connected with a transformer winding is formed at the first ends of the lead posts (20), and an outer connection part (21) connected with an external device is formed at the second ends of the lead posts (20).

2. A terminal according to claim 1, wherein the sleeve body (10) is formed with a connection portion (11), the connection portion (11) being adapted to be connected to a housing of a transformer.

3. A terminal according to claim 2, characterized in that the terminal further comprises a flange platen (12), the flange platen (12) abutting the connection portion (11) for press-fitting the connection portion (11) to the transformer housing.

4. A terminal according to claim 3, further comprising a seal mounted between the connection portion (11) and the transformer housing.

5. A terminal block according to claim 3, wherein the connecting portion (11) is formed with a plurality of mounting holes for passing bolts.

6. A terminal according to claim 1, wherein the inner portion (22) is hidden within the sleeve body (10) or protrudes from the sleeve body (10).

7. A terminal according to claim 6, characterized in that the extension (21) is concealed within the sleeve body (10) or projects from the sleeve body (10).

8. A terminal block according to claim 7, characterised in that the female part (22) and/or the male part (21) is/are of a threaded-hole or screw construction.

9. A terminal according to claim 1, wherein a plurality of the lead posts (20) are disposed at equal angles along the axial center of the sleeve body (10).

10. A transformer comprising a terminal, characterized in that the terminal is a terminal according to any one of claims 1 to 9.