Novel insulating cylinder placing structure

Abstract

The utility model discloses a novel insulating cylinder placing structure which comprises a transformer coil assembly, and the transformer coil assembly comprises a high-voltage coil and a low-voltage coil located on the inner side of the high-voltage coil. The insulating cylinder assembly comprises a first insulating cylinder arranged between the high-voltage coil and the low-voltage coil, a second insulating cylinder arranged on the inner side of the first insulating cylinder, a limiting shell arranged on the top surface of the first insulating cylinder, and a first annular groove and a second annular groove which are formed in the bottom surface of the limiting shell. The transformer coil assembly and the insulating cylinder assembly are matched with each other, so that a double-layer insulating cylinder structure is formed, two insulating cylinders are limited and locked, an insulating buffer gap is formed between the two insulating cylinders, the insulating effect is improved, the voltage withstanding level of the transformer is improved, the fixing effect of the insulating cylinders is improved, and the service life of the transformer is prolonged. And the distance between the insulating cylinder and the high-voltage coil and the low-voltage coil becomes uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating cylinder placement, in particular to a novel insulating cylinder placement structure. Background Art

[0002] In order to consider the cost of the transformer, an insulating cylinder must be placed between the high-voltage coil and the low-voltage coil. The insulating cylinder is made of epoxy resin and PET materials, which has good flexibility and can also improve the withstand voltage level of the dry-type transformer. However, for transformers with larger capacity, placing an insulating cylinder between the high and low voltage coils will affect the withstand voltage level of the transformer. The original process has the following defects: For large-capacity transformers, placing an insulating cylinder has a poor fixing effect; the distance between the insulating cylinder and the high-voltage coil and the low-voltage coil is inconsistent. Utility Model Content

[0003] Therefore, the purpose of the utility model is to provide a new insulating cylinder placement structure, through the mutual cooperation of the transformer coil assembly and the insulating cylinder assembly, to form a double-layer insulating cylinder structure when in use, the two insulating cylinders are limited and locked, and an insulating buffer gap is formed between the two insulating cylinders, thereby improving the insulation effect, improving the voltage resistance level of the transformer, increasing the fixing effect of the insulating cylinder, and making the distance between the insulating cylinder and the high and low voltage coils uniform.

[0004] In order to solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical solutions: a new insulating cylinder placement structure, comprising:

[0005] A transformer coil assembly, the transformer coil assembly comprising a high-voltage coil and a low-voltage coil located inside the high-voltage coil;

[0006] An insulating cylinder assembly, the insulating cylinder assembly includes a first insulating cylinder arranged between the high-voltage coil and the low-voltage coil, a second insulating cylinder arranged inside the first insulating cylinder, a limiting shell arranged on the top surface of the first insulating cylinder, and a first annular groove and a second annular groove opened on the bottom surface of the limiting shell.

[0007] As a preferred solution of the novel insulating cylinder placement structure described in the utility model, the transformer coil assembly further includes insulating pads arranged on the bottom surfaces of the high-voltage coil and the low-voltage coil.

[0008] As a preferred solution of the novel insulating cylinder placement structure described in the utility model, four insulating spacers are provided, and the four insulating spacers are symmetrically arranged at the midline position of the high-voltage coil.

[0009] As a preferred solution of the novel insulating cylinder placement structure described in the utility model, the insulating cylinder assembly further includes a first threaded hole opened on the inner side of the limiting shell and a second threaded hole opened on the outer side of the limiting shell;

[0010] Wherein, the hole sizes of the first threaded hole and the second threaded hole are equal.

[0011] As a preferred solution of the novel insulating cylinder placement structure described in the utility model, the insulating cylinder assembly further includes a first insulating pad arranged in the first annular groove and a second insulating pad arranged in the second annular groove.

[0012] As a preferred solution of a novel insulating cylinder placement structure described in the utility model, the thickness of the first insulating pad and the second insulating pad are equal, and the first insulating pad and the second insulating pad are in contact with the first insulating cylinder and the second insulating cylinder respectively.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] By cooperating with each other, a double-layer insulating cylinder structure is formed when in use, the two insulating cylinders are limited and locked, and an insulating buffer gap is formed between the two insulating cylinders, thereby improving the insulation effect, improving the withstand voltage level of the transformer, increasing the fixing effect of the insulating cylinder, and making the distance between the insulating cylinder and the high and low voltage coils uniform.

[0015] During specific use, the user fits the first insulating tube and the second insulating tube together, and uses a limiting shell to cover the top ends of the first insulating tube and the second insulating tube, so that the top end of the first insulating tube is engaged in the first annular groove, and the top end of the second insulating tube is engaged in the second annular groove. At this time, a threaded rod is used to penetrate the first threaded hole and the second threaded hole respectively, and the two ends of the first insulating tube and the second insulating tube are locked in the corresponding limiting shell. At this time, an insulating space is left between the first insulating tube and the second insulating tube. At this time, the high-voltage coil is wrapped around the outside of the first insulating tube, and the low-voltage coil is located on the inside of the second insulating tube. The two insulating tubes are at an equal distance from the high-voltage coil and the low-voltage coil, thereby improving the insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the insulating tube of the utility model;

[0019] Figure 3 It is a structural diagram of the limiting shell of the utility model.

[0020] In the figure: 11, high-voltage coil; 12, low-voltage coil; 13, insulating spacer; 21, first insulating cylinder; 22, second insulating cylinder; 23, limiting shell; 24, first annular groove; 25, second annular groove; 26, first threaded hole; 27, second threaded hole; 28, first insulating pad; 29, second insulating pad. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides a novel insulating cylinder placement structure. Through the mutual cooperation of the transformer coil assembly and the insulating cylinder assembly, a double-layer insulating cylinder structure is formed when in use. The two insulating cylinders are limited and locked, and an insulating buffer gap is formed between the two insulating cylinders, thereby improving the insulation effect, improving the voltage resistance level of the transformer, increasing the fixing effect of the insulating cylinder, and making the distance between the insulating cylinder and the high and low voltage coils uniform.

[0026] Example 1

[0027] Figure 1 , Figure 2 , Figure 3The figure shows the overall structure of a novel insulating tube placement structure of the utility model. Figure 1 , Figure 2 , Figure 3 The main structure of this embodiment includes: a transformer coil assembly and an insulation cylinder assembly.

[0028] The transformer coil assembly is used in conjunction with the insulating cylinder assembly. Specifically, the transformer coil assembly includes a high-voltage coil 11, a low-voltage coil 12 located inside the high-voltage coil 11, and an insulating pad 13 arranged on the bottom surfaces of the high-voltage coil 11 and the low-voltage coil 12.

[0029] During specific use, the insulating cylinder assembly is located between the high-voltage coil 11 and the low-voltage coil 12 for insulation, and the insulating spacer 13 is used to isolate the current.

[0030] The insulating cylinder assembly is used to improve the insulation effect. Specifically, the insulating cylinder assembly includes a first insulating cylinder 21 arranged between the high-voltage coil 11 and the low-voltage coil 12, a second insulating cylinder 22 arranged inside the first insulating cylinder 21, a limiting shell 23 arranged on the top surface of the first insulating cylinder 21, and a first annular groove 24 and a second annular groove 25 opened on the bottom surface of the limiting shell 23;

[0031] The insulating cylinder assembly further includes a first threaded hole 26 formed on the inner side of the limiting shell 23 and a second threaded hole 27 formed on the outer side of the limiting shell 23;

[0032] The first threaded hole 26 and the second threaded hole 27 are of equal size.

[0033] During specific use, the user fits the first insulating tube 21 and the second insulating tube 22 together, and uses the limiting shell 23 to cover the top of the first insulating tube 21 and the second insulating tube 22, so that the top of the first insulating tube 21 is engaged in the first annular groove 24, and the top of the second insulating tube 22 is engaged in the second annular groove 25. At this time, a threaded rod is used to penetrate the first threaded hole 26 and the second threaded hole 27 respectively, and the two ends of the first insulating tube 21 and the second insulating tube 22 are locked in the corresponding limiting shell 23. At this time, an insulating space is left between the first insulating tube 21 and the second insulating tube 22. At this time, the high-voltage coil 11 is wound around the outside of the first insulating tube 21, and the low-voltage coil 12 is located on the inside of the second insulating tube 22. The two insulating tubes are at an equal distance from the high-voltage coil 11 and the low-voltage coil 12, thereby improving the insulation effect.

[0034] Example 2

[0035] Please refer to Figure 3The first insulating pad 28 and the second insulating pad 29 are provided to protect the side ends of the first insulating tube 21 and the second insulating tube 22, so as to prevent the insulating tube from being penetrated and damaged by the end of the threaded rod when the threaded rod penetrates the corresponding threaded hole;

[0036] Specifically, the insulating cylinder assembly further includes a first insulating pad 28 disposed in the first annular groove 24 and a second insulating pad 29 disposed in the second annular groove 25;

[0037] The first insulating pad 28 and the second insulating pad 29 have the same thickness, and the first insulating pad 28 and the second insulating pad 29 are in contact with the first insulating tube 21 and the second insulating tube 22 respectively;

[0038] During actual use, the two threaded rods penetrate the first threaded hole 26 and the second threaded hole 27 from both ends respectively. At this time, the ends of the two threaded rods are in contact with the first insulating pad 28 and the second insulating pad 29 respectively, avoiding the problem of the threaded rods penetrating the corresponding insulating tube.

[0039] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A new type of insulating tube placement structure, characterized in that: include: A transformer coil assembly, the transformer coil assembly comprising a high-voltage coil (11) and a low-voltage coil (12) located inside the high-voltage coil (11); An insulating cylinder assembly, the insulating cylinder assembly comprising a first insulating cylinder (21) arranged between the high-voltage coil (11) and the low-voltage coil (12), a second insulating cylinder (22) arranged inside the first insulating cylinder (21), a limiting shell (23) arranged on the top surface of the first insulating cylinder (21), and a first annular groove (24) and a second annular groove (25) provided on the bottom surface of the limiting shell (23).

2. A novel insulating tube placement structure according to claim 1, characterized in that: The transformer coil assembly also includes an insulating spacer (13) arranged on the bottom surfaces of the high-voltage coil (11) and the low-voltage coil (12).

3. A novel insulating tube placement structure according to claim 2, characterized in that: Four insulating spacers (13) are provided, and the four insulating spacers (13) are symmetrically arranged at the midline position of the high-voltage coil (11).

4. A novel insulating tube placement structure according to claim 3, characterized in that: The insulating cylinder assembly further comprises a first threaded hole (26) provided on the inner side of the limiting shell (23) and a second threaded hole (27) provided on the outer side of the limiting shell (23); The first threaded hole (26) and the second threaded hole (27) are of equal size.

5. A novel insulating tube placement structure according to claim 4, characterized in that: The insulating cylinder assembly also includes a first insulating pad (28) disposed in the first annular groove (24) and a second insulating pad (29) disposed in the second annular groove (25).

6. The novel insulating tube placement structure according to claim 5 is characterized in that: The first insulating pad (28) and the second insulating pad (29) have the same thickness, and the first insulating pad (28) and the second insulating pad (29) are in contact with the first insulating tube (21) and the second insulating tube (22) respectively.

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