Transformer oil tank and transformer thereof

Abstract

The utility model discloses a transformer oil tank and a transformer thereof, and the transformer oil tank comprises a tank body which is of a hollow box-shaped structure formed by bending an aluminum alloy plate; the top plate is fixedly connected with the top of the box body; the bottom plate is fixedly connected with the bottom of the box body; the mounting frame assembly is fixedly arranged on the outer side of the box body; and the fastening mechanism is arranged on the bottom plate and is used for fixing the heavy components in the box body with the bottom plate. According to the transformer oil tank and the transformer thereof, compared with the prior art, the requirements for light weight and miniaturization of the vehicle transformer can be met.

Description

Technical Field

[0001] The present application relates to the technical field of transformers, and more specifically, to a transformer oil tank and a transformer thereof. Background Art

[0002] As the main component of rail vehicles, transformers account for a large proportion of weight. In the process of rail vehicle pursuit of speed, application of high-impedance transformers and lightweight development of various components, the development of lightweight transformer oil tanks is particularly important.

[0003] The common material used for the transformer oil tank of existing rail trains is low-carbon steel. This type of transformer oil tank is heavy, which is not conducive to the lightweight of the entire vehicle.

[0004] Therefore, there is an urgent need for a transformer oil tank and a transformer thereof that can meet the requirements of lightweight and miniaturization of vehicle transformers. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a transformer oil tank and a transformer thereof, which can meet the requirements of lightweight and miniaturization of vehicle transformers.

[0006] The technical solutions provided by this application are as follows:

[0007] A transformer oil tank, comprising:

[0008] The box body is a hollow box-shaped structure formed by bending an aluminum alloy plate;

[0009] A top plate fixedly connected to the top of the box body;

[0010] A bottom plate fixedly connected to the bottom of the box body;

[0011] A mounting frame assembly fixedly arranged on the outside of the box body;

[0012] A fastening mechanism is arranged on the bottom plate, and the fastening mechanism is used to fix the heavy components in the box body to the bottom plate.

[0013] Preferably, two mounting frame assemblies are provided, and the two mounting frame assemblies are symmetrically arranged on both sides of the box body.

[0014] Preferably, it also includes:

[0015] A reinforcing plate is disposed between the mounting frame assembly and the box body.

[0016] Preferably, at least two groups of the fastening mechanisms are provided, and the fastening mechanisms are arranged at intervals on the bottom plate.

[0017] Preferably, the fastening mechanism comprises:

[0018] A first mounting hole is provided on the bottom plate, and a second mounting hole is provided on the heavy component for use in conjunction with the first mounting hole;

[0019] a fastening bolt for passing through the first mounting hole and the second mounting hole;

[0020] A locking nut is arranged on the outer side of the base plate and is used in conjunction with the fastening bolt.

[0021] Preferably, the fastening mechanism further comprises:

[0022] A mounting seat is arranged on the outer side of the base plate and fixedly connected to the base plate, wherein a mounting hole is arranged on the mounting seat, and the inner diameter of the mounting hole is larger than the outer diameter of the locking nut.

[0023] Preferably, the fastening mechanism further comprises:

[0024] A sealing member is arranged on a side of the mounting seat away from the bottom plate and fixedly connected to the mounting seat.

[0025] Preferably, it also includes:

[0026] A reinforcing rib structure is arranged on the box body.

[0027] Preferably, it also includes:

[0028] A box edge disposed between the box body and the top plate;

[0029] A base disposed between the box body and the bottom plate;

[0030] The base and the box body, the base and the bottom plate, and the box edge and the box body are all fixedly connected.

[0031] A transformer comprises the transformer oil tank described in any one of the above items.

[0032] The transformer oil tank provided by the utility model is firstly provided with a box body, wherein the box body is a hollow box-shaped structure formed by bending an aluminum alloy plate. Since the density of the aluminum alloy material is small and the strength is relatively high, it breaks through the limitation of the size range of the aluminum alloy raw material, can meet the requirements of lightweight and miniaturization of vehicle transformers, and is more suitable for lightweight and miniaturization of vehicle transformers compared with the carbon steel material in the prior art. The transformer oil tank provided by the utility model is also provided with a top plate and a bottom plate, the top plate is fixedly connected to the top of the box body, and the bottom plate is fixedly connected to the bottom of the box body, and the box body, the top plate and the bottom plate form the basic frame of the transformer oil tank. Secondly, a mounting frame assembly and a fastening mechanism are also provided, the mounting frame assembly is fixedly arranged on the outside of the box body, and the mounting frame assembly is used to fix the box body with the vehicle body, so that the box body is suspended on the vehicle body, and the fastening mechanism is arranged on the bottom plate, and the fastening mechanism is used to fix the heavy parts in the box body with the bottom plate, so as to avoid the heavy parts in the box body from shaking in the box body. It can be seen that compared with the prior art, the transformer oil tank in the embodiment of the utility model is made of aluminum alloy material, which is more suitable for lightweight and miniaturized vehicle transformers; the box body is bent through a bending process to reduce welds, thereby improving structural strength and welding process level.

[0033] The utility model also provides a transformer, including the above-mentioned transformer oil tank, which can also meet the technical effect of lightweight and miniaturization requirements of vehicle transformers. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of a transformer oil tank provided in an embodiment of the utility model;

[0036] Figure 2 for Figure 1 Bottom view of

[0037] Figure 3 for Figure 2 A partial enlarged view of

[0038] Figure 4 for Figure 1 A top view of

[0039] Figure 5 for Figure 1 Left view of

[0040] Figure 6 for Figure 1 A cross-sectional view of

[0041] Figure 7 for Figure 6 A partial enlarged view of .

[0042] Figure numerals: 1. Box body; 2. Top plate; 3. Bottom plate; 4. Mounting frame assembly; 5. Fastening mechanism; 6. Heavy component; 7. Reinforcement plate; 8. Reinforcement rib structure; 91. Box edge; 92. Base. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0045] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0047] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0048] The embodiments of the present invention are written in a progressive manner.

[0049] like Figures 1 to 7 As shown, an embodiment of the utility model provides a transformer oil tank, comprising: a box body 1, the box body 1 is a hollow box-shaped structure formed by bending an aluminum alloy plate; a top plate 2 fixedly connected to the top of the box body 1; a bottom plate 3 fixedly connected to the bottom of the box body 1; a mounting frame assembly 4 fixedly arranged on the outside of the box body 1; a fastening mechanism 5 arranged on the bottom plate 3, and the fastening mechanism 5 is used to fix the heavy components 6 in the box body 1 to the bottom plate 3.

[0050] At present, the commonly used material for train transformer oil tanks is low-carbon steel, and the density of carbon steel is about three times that of aluminum alloy. This type of transformer oil tank is heavy, which is not conducive to the lightweight of the entire vehicle.

[0051] In the process of pursuing speed, high-impedance transformer application and lightweight development of various components, the light density and high conductivity of aluminum alloy are very important material properties in the innovation process of transformer products. Aluminum alloy products are used on a large scale in various manufacturing industries, and aluminum alloy materials have matured in important technical fields such as product design, raw material performance, process forming and welding. Foreign countries have the technical capabilities to develop aluminum alloy material tanks for rail traction transformers, and have successfully tested them on some high-speed EMUs, but due to the complexity of aluminum alloy tank manufacturing and high cost restrictions, it has always been difficult to apply them in batches. Therefore, the existing rail transformer tanks are usually mainly low-carbon steel tanks.

[0052] The transformer oil tank provided by the utility model is firstly provided with a box body 1, wherein the box body 1 is a hollow box-shaped structure formed by bending an aluminum alloy plate. Since the aluminum alloy material has a low density and relatively high strength, it breaks through the limitation of the size range of the aluminum alloy raw material, can meet the requirements of lightweight and miniaturization of vehicle transformers, and is more suitable for lightweight and miniaturization of vehicle transformers compared with the carbon steel material in the prior art. The transformer oil tank provided by the utility model is also provided with a top plate 2 and a bottom plate 3, the top plate 2 is fixedly connected to the top of the box body 1, and the bottom plate 3 is fixedly connected to the bottom of the box body 1, and the box body 1, the top plate 2 and the bottom plate 3 form the basic frame of the transformer oil tank. Secondly, a mounting frame assembly 4 and a fastening mechanism 5 are also provided. The mounting frame assembly 4 is fixedly arranged on the outside of the box body 1, and the mounting frame assembly 4 is used to fix the box body to the vehicle body, so that the box body is suspended on the vehicle body. The fastening mechanism 5 is arranged on the bottom plate 3, and the fastening mechanism 5 is used to fix the heavy parts 6 in the box body to the bottom plate 3, so as to prevent the heavy parts 6 in the box body from shaking in the box body. It can be seen that compared with the prior art, the transformer oil tank in the embodiment of the utility model is made of aluminum alloy material, which is more suitable for lightweight and miniaturization of vehicle transformers; the box body 1 reduces welds through a bending process, and improves the structural strength and welding process level.

[0053] It needs to be emphasized that, firstly, the box body in the embodiment of the present invention is made of aluminum alloy material, which is light in weight, thereby improving the overall level of lightweight transformer; secondly, the box body 1 in the embodiment of the present invention is formed by bending an aluminum alloy plate, breaking through the limitation of the bending and forming process of aluminum alloy raw materials within a certain size range, and the head and tail sides of the box body 1 are fixedly connected by welding, which can reduce welds and improve the strength of the structure and the welding process level.

[0054] Furthermore, the front and rear sides of the box body 1 in the embodiment of the utility model are fixedly connected by tailoring welding. The application of tailoring welding converts the T-shaped weld into a butt weld, thereby improving the strength of the key stress-bearing position of the structure.

[0055] Furthermore, as one of the implementation modes, the bottom plate 3 and the box body 1, and the box body 1 and the mounting frame assembly 4 in the embodiment of the utility model are fixedly connected by welding. Furthermore, the bottom plate 3, the box body 1, the box edge 91, and the base 92 are overlapped, that is, the overlapping positions are partially overlapped, and welding is performed on both sides of the overlapping positions to improve the quality and strength of the welds.

[0056] In the above structure, the structure of the top plate 2 in the embodiment of the utility model can be diversified. Specifically, the top plate 2 in the embodiment of the utility model includes but is not limited to any one of a structure with an electrical interface, a flat plate without an electrical interface, or a reinforced rib cover plate structure.

[0057] Furthermore, the mounting frame assembly 4 in the embodiment of the utility model is fixed to the outer side of the box body 1 by welding, and the mounting frame assembly 4 is fixed to the vehicle body to achieve a suspension connection between the fuel tank and the vehicle body.

[0058] In the above structure, as one of the implementation modes, two groups of mounting frame assemblies 4 are provided in the embodiment of the utility model, and the two groups of mounting frame assemblies 4 are symmetrically arranged on both sides of the box body 1. The two sides of the box body 1 are respectively mounted on the two sides of the vehicle body through the mounting frame assemblies 4, and the installation of the box body 1 is more firm and the force is more evenly applied.

[0059] Furthermore, as one embodiment, at least one mounting frame is provided in a group of mounting frame assemblies 4 in the embodiment of the utility model, and when at least two mounting frames are provided in a group of mounting frame assemblies 4, the mounting frames are spaced apart along the width direction of the box body 1. More specifically, the structure of the mounting frame in the embodiment of the utility model includes but is not limited to U-shape, T-shape or L-shape.

[0060] Furthermore, the embodiment of the utility model provides a specific structure of a U-shaped mounting frame, specifically, the mounting frame includes an upper groove profile and two vertical plates spliced ​​at the lower part, so as to reduce the size of the profile required for the mounting frame. Furthermore, the connection between the horizontal plate and the box body 1 and the connection between the mounting plate and the box body 1 are both strengthened by a reinforcing plate 7.

[0061] Furthermore, the mounting plate is provided with connection holes, and the width of the mounting plate gradually decreases along the direction from the top plate 2 to the bottom plate 3 .

[0062] Furthermore, in order to further improve the heavy-duty bearing capacity between the mounting frame assembly 4 and the box body 1, the transformer oil tank in the embodiment of the utility model also includes a reinforcing plate 7, which is arranged between the mounting frame assembly 4 and the box body 1, and the connection strength is higher.

[0063] In order to fix the heavy components 6 in the box body inside the box body, as one of the preferred implementations, at least two groups of fastening mechanisms 5 in the embodiment of the utility model are provided, and the fastening mechanisms 5 are arranged on the bottom plate 3 at intervals.

[0064] The heavy component 6 in the prior art is wedged in all directions on the inside of the oil tank to achieve restraint and fixation. This structural design is complex and the process operation is relatively cumbersome. In order to further simplify the structure of the oil tank, as one of the preferred implementations, please refer to Figure 7 As shown, the fastening mechanism 5 in the embodiment of the utility model includes a first mounting hole, a fastening bolt and a locking nut, wherein the first mounting hole is provided on the bottom plate 3, and a second mounting hole is provided on the heavy component 6, the first mounting hole and the second mounting hole are used in conjunction with each other, and the fastening bolt passes through the first mounting hole and the second mounting hole and is fixed by the locking nut. The heavy component 6 is fixed by the fastening bolt, and its structure is simpler, and the heavy component 6 is prevented from shaking in the box body.

[0065] In the above structure, as one of the implementation modes, the fastening mechanism 5 in the embodiment of the utility model includes a mounting seat, which is arranged on the outer side of the base plate 3 away from the top plate 2, and the mounting seat is fixedly connected to the base plate 3, and a mounting hole is arranged on the mounting seat, and the aperture of the mounting hole is not less than the outer diameter of the locking nut.

[0066] Furthermore, for a transformer with cooling oil inside, in order to avoid leakage of cooling oil, as one implementation mode, the fastening mechanism 5 in the embodiment of the utility model further includes: a sealing member arranged on a side of the mounting seat away from the bottom plate 3 and fixedly connected to the mounting seat. The sealing member is fixedly connected to the mounting seat to prevent the risk of cooling oil leakage caused by the fastening bolts penetrating the box body.

[0067] Furthermore, the sealing element is specifically made of rubber material.

[0068] Furthermore, in order to improve the rigidity and strength required for the transformer oil tank to withstand a certain pressure, as one preferred embodiment, the transformer oil tank in the embodiment of the utility model further includes a reinforcing rib structure 8 arranged on the tank body. Specifically, the reinforcing rib structure 8 is arranged around the tank body, and the reinforcing rib structure 8 includes but is not limited to reinforcing ribs or reinforcing plates. Furthermore, the reinforcing ribs are preferably U-shaped reinforcing ribs.

[0069] In the above structure, as one of the preferred implementations, the transformer oil tank in the embodiment of the utility model also includes a box edge 91 and a base 92, wherein the box edge 91 is arranged between the box body 1 and the top plate 2, and the base is arranged between the box body 1 and the bottom plate 3, and the base and the box body 1, the base and the bottom plate 3, and the box edge 91 and the box body 1 are all fixedly connected.

[0070] In the prior art, in large-scale rail design products, aluminum alloys are usually designed with profile structures, which requires the development of special molds, increasing the cost of special molds and the cost of purchasing raw materials for profiles. The high manufacturing cost limits the mass application of products. The structural form of the box edge 91, the base 92, and the mounting frame assembly 4 in the embodiment of the utility model is conducive to reducing the cost of profile mold development and the cost of profile purchase.

[0071] In the above structure, as a more specific implementation, the cross-sections of the box edge 91 and the base 92 in the embodiment of the utility model are specifically U-shaped or L-shaped.

[0072] The base 92 and the box body 1, and the base 92 and the bottom plate 3 are specifically overlapped structures, and the weld strength is improved by welding at two locations. The box edge 91 and the box body 1, the box body 1 and the base 92 and the bottom plate 3 are welded together to realize the transformer oil tank box frame.

[0073] The utility model also provides a transformer, including the above transformer oil tank, which can also meet the requirements of lightweight and miniaturization of vehicle transformers.

[0074] Furthermore, the transformer in the embodiment of the utility model is specifically any one of a traction transformer, an isolation transformer, and an auxiliary transformer.

[0075] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transformer oil tank, characterized in that: include: A box body (1), wherein the box body (1) is a hollow box-shaped structure formed by bending an aluminum alloy plate; A top plate (2) fixedly connected to the top of the box body (1); A bottom plate (3) fixedly connected to the bottom of the box body (1); A mounting frame assembly (4) fixedly arranged on the outside of the box body (1); A fastening mechanism (5) is arranged on the bottom plate (3), and the fastening mechanism (5) is used to fix a heavy component (6) in the box body to the bottom plate (3).

2. The transformer oil tank according to claim 1, characterized in that: Two mounting frame assemblies (4) are provided, and the two mounting frame assemblies (4) are symmetrically arranged on both sides of the box body.

3. The transformer oil tank according to claim 2, characterized in that: Also includes: A reinforcing plate (7) is arranged between the mounting frame assembly (4) and the box body.

4. The transformer oil tank according to any one of claims 1 to 3, characterized in that: At least two groups of the fastening mechanisms (5) are provided, and the fastening mechanisms (5) are arranged on the bottom plate (3) at intervals.

5. The transformer oil tank according to claim 4, characterized in that: The fastening mechanism (5) comprises: A first mounting hole is provided on the bottom plate (3), and a second mounting hole is provided on the heavy component (6) for use in conjunction with the first mounting hole; a fastening bolt for passing through the first mounting hole and the second mounting hole; A locking nut is arranged on the outer side of the base plate (3) and is used in conjunction with the fastening bolt.

6. The transformer oil tank according to claim 5, characterized in that: The fastening mechanism (5) further comprises: A mounting seat is arranged on the outside of the base plate (3) and fixedly connected to the base plate (3), wherein a mounting hole is arranged on the mounting seat, and the inner diameter of the mounting hole is larger than the outer diameter of the locking nut.

7. The transformer oil tank according to claim 6, characterized in that: The fastening mechanism (5) further comprises: A sealing member is arranged on a side of the mounting seat away from the bottom plate (3) and is fixedly connected to the mounting seat.

8. The transformer oil tank according to any one of claims 1 to 3 and 5 to 7, characterized in that: Also includes: A reinforcing rib structure (8) is arranged on the box body.

9. The transformer oil tank according to any one of claims 1 to 3 and 5 to 7, characterized in that: Also includes: A box edge (91) disposed between the box body (1) and the top plate (2); A base (92) disposed between the box body (1) and the bottom plate (3); The base (92) and the box body (1), the base (92) and the bottom plate (3), and the box edge (91) and the box body (1) are all fixedly connected.

10. A transformer, characterized in that: A transformer oil tank comprising the transformer oil tank as claimed in any one of claims 1 to 9.

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