Insulating panel for outgoing line terminal of variable-frequency speed-regulating dry-type transformer

Abstract

The utility model discloses a frequency conversion speed regulation dry type transformer outgoing line terminal insulation panel which comprises an insulation panel body, and a plurality of through holes are formed in the insulation panel body in a penetrating mode. A wire outlet terminal is mounted in each through hole; the insulating panel is provided with at least one countersunk groove, and a plurality of through holes are distributed in the countersunk groove at intervals, so that the end part of the outgoing line terminal is embedded in the countersunk groove. Therefore, the fixing quality of the outgoing line terminal is improved, the production and processing efficiency of the variable-frequency speed-regulating dry-type transformer is improved, and the overall appearance quality of the transformer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of arrangement and fixing of dry-type transformer outlet terminals, in particular to an insulating panel for outlet terminals of a variable frequency speed regulating dry-type transformer. Background Art

[0002] Among many energy-consuming devices, motor equipment is a very critical category. Motors consume a lot of energy when starting and running. In order to improve the working efficiency of motors and reduce their operating losses, motors in some important places now use variable frequency starting and speed regulation to make the motors work in the best performance state; variable frequency speed regulation transformers are devices that provide power for frequency converters. In order to improve the quality of electric energy supplied to frequency converters, variable frequency speed regulation transformers use many phase windings for output power supply to ensure the stability of the power supply voltage, and the layout and fixation of these output terminals have a great influence on the appearance and performance of the entire transformer.

[0003] like Figure 1 and Figure 2 As shown, currently these outlet terminals are all fixed on an insulating panel with through holes. Due to the large number of outlet terminals, they are often not properly tightened or checked during the manufacturing process, resulting in individual outlet terminals becoming loose, affecting the safe operation of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide an insulating panel for the outlet terminal of a variable frequency speed regulation dry-type transformer, improve the fixing quality of the outlet terminal, improve the production and processing efficiency of the variable frequency speed regulation dry-type transformer, and enhance the overall appearance quality of the transformer.

[0005] In order to solve the above technical problems, the utility model provides an insulating panel for an outlet terminal of a variable frequency speed regulation dry-type transformer, comprising an insulating panel, on which a plurality of through holes are formed;

[0006] Each through hole is equipped with an outlet terminal;

[0007] At least one countersunk groove is formed on the insulating panel, and a plurality of through holes are distributed at intervals in the countersunk groove so that the end of the outlet terminal is embedded in the countersunk groove.

[0008] Preferably, a plurality of the through holes are distributed in an array on the insulating panel.

[0009] Preferably, a plurality of countersunk grooves are provided, which are spaced apart along the length or width direction of the insulating panel, and a plurality of through holes are spaced apart in the countersunk grooves, so that the plurality of through holes are distributed in an array on the insulating panel.

[0010] Preferably, the outlet terminal includes a bolt and a nut, the bolt passes through the through hole, and the tail of the bolt is embedded in the countersunk groove, and the nut is arranged on a side of the insulating panel away from the countersunk groove, and the outlet terminal is fixedly connected to the insulating panel by screwing the nut.

[0011] Preferably, the outlet terminal further includes a flat washer, and the flat washer is arranged between the nut and the insulating panel.

[0012] Preferably, the width of the countersunk groove is equal to the width between two parallel sides of the hexagon at the tail of the bolt, and when the tail of the bolt is embedded in the countersunk groove, the bolt is fixed in position.

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

[0014] After the variable frequency speed regulation dry-type transformer adopts the insulating panel of the utility model to fix the output terminal, the fixing of the output terminal is more convenient. First, the output terminal bolt is inserted into the through hole from the side with the countersunk groove, and the two side planes of the tail of the bolt are aligned with the notch of the countersunk groove, and then the flat washer and the fixing nut are installed on the other side of the insulating panel. Because the tail of the bolt has been limited and fixed by the countersunk groove of the insulating panel, it only needs to be fixed on one side when tightening the fixing nut, and the bolt after fixing will not rotate as a whole, which effectively improves the production efficiency and tightening quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view of the existing insulation panel;

[0016] Figure 2 It is a connection diagram of the existing outlet terminals on the insulating panel;

[0017] Figure 3 It is a front view of an insulation panel of an outlet terminal of a variable frequency speed regulation dry-type transformer provided by the utility model;

[0018] Figure 4 It is a side view of an insulating panel of an outlet terminal of a variable frequency speed regulating dry-type transformer provided by the utility model;

[0019] Figure 5 The utility model discloses a bottom view of an insulating panel of an outlet terminal of a variable frequency speed regulating dry-type transformer.

[0020] In the figure: 1. Insulating panel; 2. Through hole; 3. Outlet terminal; 4. Countersunk groove; 301. Bolt; 302. Fixing nut; 303. Flat washer. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] Embodiment 1

[0025] The utility model provides an insulation panel for the outlet terminal of a variable frequency speed regulating dry-type transformer. Figure 3-5 , including an insulating panel 1, on which a plurality of through holes 2 are formed; an outlet terminal 3 is installed in each of the through holes 2; at least one countersunk groove 4 is formed on the insulating panel 1, and a plurality of through holes 2 are spaced apart in the countersunk groove 4 so that the end of the outlet terminal 3 is embedded in the countersunk groove 4.

[0026] Specifically, the plurality of through holes 2 are distributed in an array on the insulating panel 1; the plurality of countersunk grooves 4 are provided, which are spaced apart along the length or width direction of the insulating panel 1, and the plurality of through holes 2 are spaced apart in the countersunk grooves 4, so that the plurality of through holes 2 are distributed in an array on the insulating panel 1.

[0027] Furthermore, the outlet terminal 3 includes a bolt 301 and a fixing nut 302, the bolt 301 passes through the through hole 2, and the tail of the bolt 301 is embedded in the countersunk groove 4, the fixing nut 302 is arranged on the side of the insulating panel 1 away from the countersunk groove 4, and the outlet terminal 3 is fixedly connected to the insulating panel 1 by screwing the fixing nut 302; the outlet terminal 3 also includes a flat washer 303, and the flat washer 303 is arranged between the nut 302 and the insulating panel 1.

[0028] In some embodiments, the width of the countersunk groove 4 is equal to the width between two parallel sides of the hexagon at the tail of the bolt 301. When the tail of the bolt 301 is embedded in the countersunk groove 4, the bolt 301 is fixed in position.

[0029] A variable frequency speed regulation dry-type transformer will determine the number of outlet terminals according to customer requirements, which is generally between sixty and seventy, and more than one hundred. The installation and fixation of the outlet terminals is a huge workload. After the variable frequency speed regulation dry-type transformer adopts a utility model insulating panel to fix the outlet terminals, the fixation of the outlet terminals is more convenient. First, insert the outlet terminal bolts into the through holes from the side with the countersunk groove, align the two side planes of the tail of the bolt with the notch of the countersunk groove, and then install the flat washers and fixing nuts on the other side of the insulating panel. Because the tail of the bolt has been limited and fixed by the countersunk groove of the insulating panel, it only needs to be fixed on one side when tightening the fixing nut. The bolts will not rotate as a whole after being fixed, which effectively improves the production efficiency and tightening quality, and has good economic benefits for the enterprise.

[0030] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An insulation panel for the outlet terminal of a variable frequency speed regulation dry-type transformer, characterized in that: It comprises an insulating panel (1), wherein a plurality of through holes (2) are formed through the insulating panel (1); An outlet terminal (3) is installed in each of the through holes (2); At least one countersunk groove (4) is provided on the insulating panel (1), and a plurality of through holes (2) are spaced apart in the countersunk groove (4), so that the end of the outlet terminal (3) is embedded in the countersunk groove (4).

2. The insulating panel for the output terminal of a variable frequency speed regulation dry-type transformer according to claim 1, characterized in that: The plurality of through holes (2) are distributed in an array on the insulating panel (1).

3. The insulating panel for the output terminal of a variable frequency speed regulation dry-type transformer according to claim 2, characterized in that: The countersunk grooves (4) are provided in a plurality and are spaced apart along the length or width direction of the insulating panel (1); the plurality of through holes (2) are spaced apart in the countersunk grooves (4), so that the plurality of through holes (2) are distributed in an array on the insulating panel (1).

4. The insulating panel for the output terminal of a variable frequency speed regulation dry-type transformer according to claim 1, characterized in that: The outlet terminal (3) comprises a bolt (301) and a fixing nut (302); the bolt (301) passes through the through hole (2), and the tail of the bolt (301) is embedded in the countersunk groove (4); the fixing nut (302) is arranged on a side of the insulating panel (1) away from the countersunk groove (4); and the outlet terminal (3) is fixedly connected to the insulating panel (1) by screwing the fixing nut (302).

5. The insulating panel for the output terminal of a variable frequency speed regulation dry-type transformer according to claim 4, characterized in that: The outlet terminal (3) further comprises a flat washer (303), wherein the flat washer (303) is arranged between the nut (302) and the insulating panel (1).

6. The insulating panel for the output terminal of a variable frequency speed regulation dry-type transformer according to claim 4, characterized in that: The width of the countersunk groove (4) is equal to the width between two parallel sides of the hexagon at the tail of the bolt (301); when the tail of the bolt (301) is embedded in the countersunk groove (4), the bolt (301) is fixed in position.

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