CN219832386U - High-low voltage integrated transformer - Google Patents

Abstract

The utility model provides a high low pressure integral type transformer, includes coil and iron core, still includes the insulation board that sets up in the coil left and right sides respectively, the centre of insulation board is provided with the locating hole, and the integrative casting of insulation board and coil takes shape, and the edge of insulation board surpasss the scope at coil place, and the one end of iron core is passed behind insulation board and the coil and is met with first clamp and the first clamp down respectively, and the other end of iron core is located the part outside insulation board and the coil and is gone up clamp and second clamp down with the second respectively, and first clamp screw passes first clamp, first clamp and the one end of iron core down respectively, and the second clamp screw passes the other end of clamp, second clamp and iron core down respectively on the second. Further, the height of insulation board is higher than the height of coil, and the top interval of coil is provided with first wiring seat and the second wiring seat rather than respectively electric connection, coil, insulation board, first wiring seat and second wiring seat pass through epoxy and pour as an organic wholely.

Description

High-low voltage integrated transformer

Technical Field

The utility model relates to a high-low voltage integrated transformer.

Background

The Chinese patent document No. CN 206947101U discloses a three-phase transformer in 2018, 01 and 30 days, which comprises a bottom supporting seat, wherein a first winding column, a second winding column and a third winding column are vertically arranged at the upper end of the bottom supporting seat, and top supporting seats are arranged at the upper ends of the first winding column, the second winding column and the third winding column; a first support piece is arranged on one side of the bottom support seat, a second support piece is arranged on the other side of the bottom support seat, first strip-shaped mounting rods are arranged at the bottoms of the first support piece and the second support piece, and second strip-shaped mounting rods are arranged at the bottoms of the first support piece and the second support piece; a third supporting piece is arranged on one side of the top supporting seat, and a fourth supporting piece is arranged on the other side of the top supporting seat; the first winding column, the second winding column and the third winding column are respectively wound with a first winding group, a second winding group and a third winding group, one sides of the first winding group, the second winding group and the third winding group are provided with a first lead frame, and the other sides of the first winding group, the second winding group and the third winding group are provided with a second lead frame. The creepage distance of the three-phase transformer is smaller, the safety performance is not high enough, and the three-phase transformer needs to be improved.

Disclosure of Invention

The utility model aims to provide a high-low voltage integrated transformer with good safety performance so as to overcome the defects in the prior art.

The high-low voltage integrated transformer comprises a coil and an iron core, and is characterized by further comprising insulating plates which are respectively arranged on the left side and the right side of the coil, wherein a positioning hole is formed in the middle of each insulating plate, each insulating plate and each coil are integrally cast, the edge of each insulating plate exceeds the range of the corresponding coil, one end of each iron core passes through each insulating plate and each coil and then is respectively connected with a first upper clamping piece and a first lower clamping piece, the other end of each iron core is positioned outside each insulating plate and each coil, the other end of each iron core is respectively connected with a second upper clamping piece and a second lower clamping piece, each first clamping screw rod passes through one ends of each first upper clamping piece, each first lower clamping piece and each iron core, and each second clamping screw rod passes through the other ends of each second upper clamping piece, each second lower clamping piece and each iron core.

Further, the height of insulation board is higher than the height of coil, and the top interval of coil is provided with first wiring seat and the second wiring seat rather than respectively electric connection, coil, insulation board, first wiring seat and second wiring seat pass through epoxy and pour as an organic wholely.

Further, the coils are three arranged at intervals, and gaps are arranged between adjacent insulating plates.

Further, the corners of the upper end and the lower end of the insulating plate are in smooth transition.

Further, the first lower clamping piece and the second lower clamping piece are respectively in a shape like a Chinese character 'ji', and the end parts of the first lower clamping piece and the second lower clamping piece are respectively provided with assembly holes.

Further, an insulating part connected with the first bracket is arranged on the second upper clamping piece, and a wire fixing seat is arranged on the insulating part.

Further, the insulating member is provided on a side of the second upper clip member remote from the insulating plate.

Further, the high-low voltage integrated transformer further comprises a second support connected with the second upper clamping piece, the first support is located above the second upper clamping piece, the second support is located below the second upper clamping piece, and the terminal seat is connected with the second support.

The utility model comprises insulating plates respectively arranged at the left side and the right side of the coil, wherein the middle of the insulating plate is provided with a positioning hole, the insulating plate and the coil are integrally cast, the edge of the insulating plate exceeds the range of the coil, and the creepage distance can be increased by additionally arranging the insulating plate with the edge exceeding the range of the coil, so that the safety performance of a product is improved.

According to the utility model, the coil, the insulating plate, the first wiring seat and the second wiring seat are integrally cast through epoxy resin, so that the strength of the wiring seat installed in the later stage is avoided, and the integral strength of the product is improved through integral casting, thereby prolonging the service life of the product.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present utility model.

Fig. 2 is a schematic perspective view of an insulating plate, a coil, a first wire holder and a second wire holder integrally cast by epoxy resin.

Fig. 3 is a schematic left-view perspective structure of fig. 2.

Fig. 4 is a schematic bottom perspective view of fig. 1.

In the figure: the wire fixing device comprises an insulating plate 1, a first wire holder 2, a second wire holder 3, a first upper clamping piece 4, a first lower clamping piece 5, a first support 6, an insulating piece 7, a terminal holder 8, a second upper clamping piece 9, a second lower clamping piece 10, a wire fixing seat 11 and a second support 12.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Referring to fig. 1-4, a high-low voltage integrated transformer comprises a coil and an iron core, and is characterized by further comprising insulating plates 1 respectively arranged at the left side and the right side of the coil, positioning holes 1.1 are formed in the middle of the insulating plates 1, the insulating plates 1 and the coil are integrally cast and formed, the edge of the insulating plates 1 exceeds the range of the coil, one end of the iron core passes through the insulating plates 1 and the coil and then is respectively connected with a first upper clamping piece 4 and a first lower clamping piece 5, the other end of the iron core is positioned outside the insulating plates 1 and the coil, the second upper clamping piece 9 and a second lower clamping piece 10 respectively, a first clamping screw rod passes through the first upper clamping piece 4, the first lower clamping piece 5 and one end of the iron core respectively, and a second clamping screw rod passes through the second upper clamping piece 9, the second lower clamping piece 10 and the other end of the iron core respectively.

In the present embodiment, the insulating plate 1 may be made of epoxy resin.

The height of the insulating plate 1 is higher than that of the coil, a first wire holder 2 and a second wire holder 3 which are respectively electrically connected with the coil are arranged at intervals at the top of the coil, and the coil, the insulating plate 1, the first wire holder 2 and the second wire holder 3 are integrally cast through epoxy resin.

The coils are three arranged at intervals, and gaps are arranged between adjacent insulating plates 1.

The gap is greater than 25mm.

Corners of the upper end and the lower end of the insulating plate 1 are in smooth transition.

The first lower clamping piece 5 and the second lower clamping piece 10 are respectively in a shape of a Chinese character 'ji', and the end parts of the first lower clamping piece and the second lower clamping piece are respectively provided with assembly holes.

The second upper clamping piece 9 is provided with an insulating piece 7 connected with the first bracket 6, and the insulating piece 7 is provided with a wire fixing seat.

The insulating member 7 is provided on the side of the second upper clip member 9 remote from the insulating plate 1.

The high-low voltage integrated transformer further comprises a second bracket 12 connected with the second upper clamping piece 9, the first bracket 6 is positioned above the second upper clamping piece 9, the second bracket 12 is positioned below the second upper clamping piece 9, and the terminal seat 8 is connected with the second bracket 12.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model, and the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying the number of technical features being indicated.

The foregoing shows and describes the basic principles and features of the utility model and its aspects

Advantages are achieved. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a high-low pressure integral type transformer, includes coil and iron core, characterized by still includes insulating board (1) of setting in the coil left and right sides respectively, the centre of insulating board (1) is provided with locating hole (1.1), insulating board (1) and the integrative casting of coil take shape, the edge of insulating board (1) surpasss the scope that the coil is located, the one end of iron core is passed behind insulating board (1) and the coil respectively with first clamp (4) and first clamp (5) down meet, the other end of iron core is located the part outside insulating board (1) and the coil respectively with second clamp (9) and second clamp (10) down, first clamp screw passes the one end of clamp (4) on the first clamp (5) and iron core respectively, the second clamp screw passes the other end of clamp (10) and iron core down on the second.

2. The high-low voltage integrated transformer according to claim 1, wherein the insulating plate (1) is higher than the coil, a first wire holder (2) and a second wire holder (3) which are respectively electrically connected with the coil are arranged at intervals at the top of the coil, and the coil, the insulating plate (1), the first wire holder (2) and the second wire holder (3) are integrally cast through epoxy resin.

3. The high-low voltage integrated transformer according to claim 1, wherein the coils are three arranged at intervals, and gaps are arranged between adjacent insulating plates (1).

4. A high and low voltage integrated transformer according to claim 3, wherein the gap is greater than 25mm.

5. The high-low voltage integrated transformer according to claim 1, wherein corners of the upper and lower ends of the insulating plate (1) are smoothly transited.

6. The high-low voltage integrated transformer according to claim 1, wherein the first lower clamping piece (5) and the second lower clamping piece (10) are respectively shaped like a Chinese character 'ji', and the ends of the first lower clamping piece and the second lower clamping piece are respectively provided with assembly holes.

7. The high-low voltage integrated transformer according to claim 1, characterized in that the second upper clamping piece (9) is provided with an insulating piece (7) connected with the first bracket (6), and the insulating piece (7) is provided with a wire fixing seat.

8. A high and low voltage integrated transformer according to claim 7, characterized in that the insulating member (7) is arranged on the side of the second upper clamping member (9) remote from the insulating plate (1).

9. The high-low voltage integrated transformer according to claim 7, further comprising a second bracket (12) connected to the second upper clamp (9), wherein the first bracket (6) is located above the second upper clamp (9), the second bracket (12) is located below the second upper clamp (9), and the terminal block (8) is connected to the second bracket (12).