Upper positioning device for power transformer body

Abstract

According to the upper positioning device for the power transformer body, a transformer outer box body is arranged on the outer side of the transformer body in an outer wrapping mode, a box cover is arranged on the top face of the transformer outer box body in a covering mode, a positioning ascending flanged base is arranged at the center of the top face of the box cover in a penetrating and protruding mode, and the lower end of the positioning ascending flanged base is arranged on the lower surface of the box cover in a penetrating and straight-through mode; a flange cover is arranged on the outer edge of the upper end of the positioning ascending flanged base and protrudes out of the upper surface of the box cover, the flange cover of the positioning ascending flanged base is parallel to the upper surface of the box cover in a transverse horizontal mode, and a top beam device body positioning piece is arranged on the inner side of the bottom of the positioning ascending flanged base in an inserted mode. The wood piece is arranged between the outer side of the top beam body positioning piece and the inner wall of the positioning ascending flanged base in a filling mode, a novel structure is provided for positioning on the transformer body, the positioning piece extends out of the upper portion of the tank cover, and therefore the height of the oil tank is greatly reduced, the safety performance is guaranteed, meanwhile, cost is reduced, and the use amount of transformer oil is optimized; and meanwhile, the attractiveness of the surface of the transformer box cover is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of transformer body, and specifically discloses an upper positioning device for power transformer body. BACKGROUND

[0002] In electrical equipment and wireless circuits, the transformer mainly has the functions of voltage raising and lowering, impedance matching and safety isolation. In a generator, no matter whether the coil moves in the magnetic field or the magnetic field moves through the fixed coil, an electromotive force can be induced in the coil. In the two cases, the value of the magnetic flux does not change, but the amount of the magnetic flux intersecting the coil changes, which is the principle of mutual induction. The transformer is a device for transforming voltage, current and impedance by using electromagnetic mutual induction. The transformer is divided into dry-type transformers (relying on air convection for natural cooling or increasing the fan cooling, which is mainly used for small-capacity transformers for high-rise buildings, high-speed toll stations, local lighting and electronic circuits) and oil-immersed transformers (relying on oil as a cooling medium, such as oil-immersed self-cooling, oil-immersed air-cooling, oil-immersed water-cooling and forced oil circulation, wherein the transformer oil tank is the outer shell of the transformer, and the iron core and the winding are arranged in the transformer oil tank and filled with transformer oil, so that the iron core and the winding are immersed in the oil.

[0003] At present, most of the transformer oil tanks with bell-shaped structure on the market place the body positioning piece on the top beam of the upper clamp of the iron core below the tank cover, and then use a wooden piece to tighten. Due to the increase of the overall height of the oil tank, this common structure wastes a lot of oil tank materials and transformer oil. CONTENT OF THE INVENTION

[0004] In order to solve the above problems, the present application provides an upper positioning device for power transformer body, the outer side of the body is externally wrapped with a transformer outer tank, the top surface of the transformer outer tank is externally covered with a tank cover, the center of the top surface of the tank cover is externally penetrated and protruded with a positioning elevation seat, the lower end of the positioning elevation seat is externally penetrated and communicated with the lower surface of the tank cover, the flange cover of the positioning elevation seat is externally protruded from the upper surface of the tank cover, the flange cover of the positioning elevation seat is horizontally transversely parallel to the upper surface of the tank cover, the bottom inner side of the positioning elevation seat is externally inserted with a top beam body positioning piece, the bottom end of the top beam body positioning piece is fixedly connected with the top surface of the body, and the outer side of the top beam body positioning piece is filled with a wooden piece between the inner wall of the positioning elevation seat.

[0005] The body is a combined assembly iron core body, the spacing between the top surface of the body and the bottom surface of the box cover is greater than the height of the lower end of the positioning raised seat protruding from the bottom surface of the box cover, the shape of the positioning raised seat is a square column type, the positioning raised seat is integrally connected with the box cover, the upper end of the positioning raised seat is connected with the flange cover through an outer edge sealing type, the lower end of the positioning raised seat is in conductive communication with the inside of the transformer outer box body, the positioning raised seat is arranged on the top surface of the box cover, thereby effectively reducing the height of the box cover, thereby compressing the height of the transformer as a whole, reducing the volume of the transformer, and the positioning member on the top beam of the iron core has actually protruded out of the box cover, but due to the existence of the body positioning raised seat, the body positioning member is still not exposed to the air, and there is a safe distance between the upper surface of the iron core and the box cover.

[0006] The top beam body positioning member is fixedly connected with the top beam on the top surface of the body, the cross-sectional shape of the top beam body positioning member is the same as the inner contour cross-sectional shape of the positioning raised seat, the outer dimension of the top beam body positioning member is smaller than the inner dimension of the positioning raised seat, the wood member is a single-piece combined wood member, the wood member is arranged in a filling and extrusion fixed manner between the top beam body positioning member and the positioning raised seat, the shape of the flange cover is the same as the cross-sectional shape of the positioning raised seat, the wood member is inserted into the raised seat cylinder wall, the body positioning member is clamped tightly, the body is prevented from being displaced, there is a large safe distance between the upper surface of the iron core and the box cover, and the height of the box wall has been reduced, the material amount of the entire oil tank and the amount of transformer oil are reduced, and the overall height of the transformer is reduced, thereby providing convenience for transportation.

[0007] Advantages:

[0008] A new type of structure is proposed for the positioning of the transformer body, the positioning member is protruded from the upper part of the box cover, thereby greatly reducing the height of the oil tank, reducing the cost while ensuring safety performance, optimizing the amount of transformer oil, and improving the appearance of the surface of the transformer box cover.

[0009] The positioning raised seat is arranged on the top surface of the box cover, thereby effectively reducing the height of the box cover, thereby compressing the height of the transformer as a whole, reducing the volume of the transformer, and the positioning member on the top beam of the iron core has actually protruded out of the box cover, but due to the existence of the body positioning raised seat, the body positioning member is still not exposed to the air, and there is a safe distance between the upper surface of the iron core and the box cover.

[0010] The wood member is inserted into the raised seat cylinder wall, the body positioning member is clamped tightly, the body is prevented from being displaced, there is a large safe distance between the upper surface of the iron core and the box cover, and the height of the box wall has been reduced, the material amount of the entire oil tank and the amount of transformer oil are reduced, and the overall height of the transformer is reduced, thereby providing convenience for transportation.

[0011] The application is convenient for production and installation, can effectively reduce the overall height of the bell-type oil tank, reduce the manufacturing cost of the transformer and the amount of transformer oil, and improve the cost competitiveness of the product. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a sectional view of an upper positioning device for a power transformer body;

[0013] In the figure; 1, body, 2, tank cover, 3, positioning elevated seat, 4, top beam body positioning piece, 5, wooden piece. DETAILED DESCRIPTION

[0014] In order to deepen the understanding of the application, the application will be further described below in combination with examples and drawings, and the examples are only used to explain the application and do not constitute a limitation on the protection scope of the application.

[0015] Body 1, tank cover 2, positioning elevated seat 3, top beam body positioning piece 4, wooden piece 5.

[0016] As shown in the figure; Figure 1

[0017] An upper positioning device for a power transformer body 1, the outer side of the body 1 is externally wrapped with a transformer outer tank, the top surface of the transformer outer tank is covered with a tank cover 2, the center of the top surface of the tank cover 2 is protrudingly provided with a positioning elevated seat 3, the lower end of the positioning elevated seat 3 is penetratingly provided on the lower surface of the tank cover 2, the upper end of the positioning elevated seat 3 is protrudingly provided with a flange cover on the upper surface of the tank cover 2, the flange cover of the positioning elevated seat 3 is horizontally transversely parallel to the upper surface of the tank cover 2, the bottom inner side of the positioning elevated seat 3 is insertingly provided with a top beam body positioning piece 4, the bottom end of the top beam body positioning piece 4 is fixedly connected with the top surface of the body 1, the outer side between the top beam body positioning piece 4 and the inner wall of the positioning elevated seat 3 is filled with a wooden piece 5, the body 1 is a combined assembly iron core body 1, the spacing between the top surface of the body 1 and the bottom surface of the tank cover 2 is greater than the height of the lower end of the positioning elevated seat 3 protruding from the bottom surface of the tank cover 2, the shape of the positioning elevated seat 3 is a square cylindrical type, the positioning elevated seat 3 is integrally connected with the tank cover 2, the upper end of the positioning elevated seat 3 is sealingly connected with the flange cover through the outer edge, the lower end of the positioning elevated seat 3 is penetratingly connected with the inside of the transformer outer tank, the top beam body positioning piece 4 is fixedly connected with the top beam on the top surface of the body 1, the cross-sectional shape of the top beam body positioning piece 4 is the same as the inner contour cross-sectional shape of the positioning elevated seat 3, the outer size of the top beam body positioning piece 4 is smaller than the inner size of the positioning elevated seat 3, the wooden piece 5 is a single-piece combined wooden piece 5, the wooden piece 5 is filledly and extrusionly fixed between the top beam body positioning piece 4 and the positioning elevated seat 3, the shape of the flange cover is the same as the cross-sectional shape of the positioning elevated seat 3. ​

[0018] Embodiment example

[0019] The body 1 is positioned on the tank cover 2 of the oil tank, the positioning elevation seat 3 is welded, the tank cover 2 is moved downward as a whole, at this time, the body 1 positioning member on the core top beam has already extended out of the tank cover 2, but due to the existence of the body 1 positioning elevation seat 3, the body 1 positioning member is still not exposed in the air. The core upper surface is still kept a safe distance from the tank cover 2, finally, the wood piece 5 is inserted into the cylinder wall of the positioning elevation seat 3, the top beam body positioning member 4 is clamped tightly, the body 1 is prevented from being displaced. At this time, the core upper surface is still kept a larger safe distance from the tank cover 2, the tank wall height has been reduced, the material consumption of the whole oil tank and the transformer oil consumption are reduced, the whole height of the transformer is reduced, and the transportation is facilitated.

[0020] The above only describes the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An upper positioning device for a power transformer body, the outer side of the body being externally provided with a transformer outer case, the top surface of the transformer outer case being externally provided with a case cover, characterized in that, The top surface of the box cover is provided with a positioning raised seat in a protruding-through mode, the lower end of the positioning raised seat is provided in a straight-through mode on the lower surface of the box cover, the upper end of the positioning raised seat is provided with a flange cover protruding from the upper surface of the box cover, the flange cover of the positioning raised seat is horizontally parallel to the upper surface of the box cover, the bottom of the positioning raised seat is provided with a top beam body positioning member in a plug-in mode, the bottom end of the top beam body positioning member is fixedly connected with the top surface of the body, and the outer side of the top beam body positioning member is filled with a wood piece between the inner wall of the positioning raised seat.

2. An upper positioning device for the body of a power transformer according to claim 1, characterized in that The body is a combined assembly iron core body, and the spacing between the top surface of the body and the bottom surface of the box cover is greater than the height of the lower end of the positioning raised seat protruding from the bottom surface of the box cover.

3. An upper positioning device for the body of an electrical transformer according to claim 1, characterized in that, The shape of the positioning raised seat is a square column type, the positioning raised seat is integrally connected with the box cover in a penetrating mode, the upper end of the positioning raised seat is connected with the flange cover in a sealing mode, and the lower end of the positioning raised seat is in communication with the inside of the transformer outer box body in a communication mode.

4. An upper positioning device for the body of an electrical transformer according to claim 1, characterized in that, The top beam body positioning member is fixedly connected with the top beam on the top surface of the body, the cross-sectional shape of the top beam body positioning member is the same as the inner contour cross-sectional shape of the positioning raised seat, and the outer side dimension of the top beam body positioning member is smaller than the inner side dimension of the positioning raised seat.

5. An upper positioning device for the body of an electrical transformer according to claim 1, characterized in that, The wood piece is a single-piece combined wood piece, and the wood piece is filled and extruded and fixed between the top beam body positioning member and the positioning raised seat.

6. An upper positioning device for the body of an electrical transformer according to claim 1, characterized in that, The shape of the flange cover is the same as the cross-sectional shape of the positioning raised seat.

Images