Integrated oil tank

Abstract

The utility model relates to the technical field of high power density, in particular to an integrated oil tank which comprises a tank body formed by splicing a plurality of side plates or integrally forming the side plates and a tank cover matched with the tank body. The inner side wall of the box body is provided with a plurality of first grooves, second grooves and third grooves which are used for reducing the self weight and increasing the oil storage capacity, one side of the box body is provided with a plurality of linear grooves which are used for improving the heat dissipation capability by increasing the air contact surface, and the other side of the box body is provided with a plurality of installation positions which are used for installing IGBTs. And a plurality of runners which are transversely arranged and distributed are arranged on the mounting surface of the mounting position. Compared with the prior art, the oil storage space is increased, so that the heat dissipation effect is better, the weight is reduced to the maximum extent under the condition of the same size, and the heat dissipation efficiency is greatly improved through the design of the inner and outer matched grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of high power density, in particular to an integrated oil tank. Background Art

[0002] As the performance requirements and power density of internal components of transformers continue to increase, the requirements for heat dissipation are becoming more and more stringent. Existing transformers are usually divided into oil-immersed and dry types. Dry-type transformers generally use air convection to dissipate heat and use solid insulating materials for insulation. However, when the line voltage is too high, the voltage can easily break through the air and discharge, causing danger. At this time, oil-immersed transformers are generally used. Since the breakdown temperature in oil is higher than that in air, oil-immersed transformers can be effectively insulated.

[0003] However, as the degree of integration increases, the power density of electronic components increases, resulting in extremely high heat generation of the devices, which will pose many safety hazards. Therefore, the working winding of the transformer needs to be immersed in oil to meet the heat dissipation needs of the transformer. However, the oil tank will become hot due to the heat conducted during the operation of the transformer, resulting in limitations in the heat dissipation performance of the oil-immersed transformer. At the same time, in order to meet the filling of industrial heavy oil, the oil tank is usually designed to be large and too bulky. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an integrated oil tank to solve the technical problems raised by the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an integrated oil tank, comprising a box body formed by a plurality of side panels spliced ​​together or integrally formed, and a box cover adapted to the box body, the inner side wall of the box body is provided with a plurality of first grooves, a second groove and a third groove for reducing the dead weight and increasing the oil storage capacity, one side of the box body is provided with a plurality of I-shaped grooves for improving the heat dissipation capacity by increasing the air contact surface, the other side of the box body is provided with a plurality of mounting positions for IGBT installation, and a plurality of flow channels arranged laterally are provided on the mounting surface of the mounting position.

[0006] Preferably, the box body is composed of a rear aluminum plate, a left aluminum plate, a front aluminum plate, a right aluminum plate and a bottom plate.

[0007] Preferably, twelve of the first grooves are provided, and the twelve first grooves are evenly arranged on the side surface of the rear aluminum plate.

[0008] Preferably, nine second grooves are provided, and the nine second grooves are evenly arranged on the side surface of the left aluminum plate.

[0009] Preferably, twelve mounting positions are provided, and the twelve mounting positions are evenly arranged on the side surface of the right aluminum plate.

[0010] Preferably, four groups of the straight grooves are provided on the side surface of the front aluminum plate, and the side surface of the front aluminum plate located inside the box body is a planar structure.

[0011] Preferably, fifteen third grooves are provided, and the fifteen third grooves are evenly opened on the upper surface of the bottom plate.

[0012] Preferably, the left aluminum plate and the right aluminum plate are arranged in the same structure.

[0013] Preferably, a lifting ring structure hole and an interface for connecting a transformer are provided on the top of the box cover.

[0014] By means of the above technical solution, the utility model provides an integrated fuel tank having at least the following

[0015] Beneficial effects:

[0016] 1. The utility model opens the first groove, the second groove and the third groove on the upper side plate of the box body, and can open a corresponding number of grooves and notches according to the maximum application conditions while taking into account the mechanical stress and strength, so as to reduce the weight of the box body and increase the oil storage volume. Through the flow channel, the heat dissipation area can be increased to solve the heat generated by the IGBT when it is working.

[0017] 2. The utility model increases the air contact surface by grooving outside the straight groove, and can also be connected to external fans and other related equipment to increase oil circulation. Compared with the current technology, the utility model increases the oil storage space to make the heat dissipation effect better, and reduces the weight to the greatest extent under the same volume. The design of the inner and outer matching grooves greatly improves the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0019] In the attached picture:

[0020] Figure 1 This is a main perspective structural diagram of an integrated fuel tank of the utility model;

[0021] Figure 2 This is a right-side stereoscopic structural diagram of an integrated fuel tank of the utility model;

[0022] Figure 3 This is a left-side stereoscopic structural diagram of an integrated oil tank of the utility model;

[0023] Figure 4 This is a top-down stereoscopic structural diagram of an integrated oil tank of the utility model.

[0024] In the figure: 1, rear aluminum plate; 10, first groove; 2, left aluminum plate; 20, second groove; 3, front aluminum plate; 30, I-shaped groove; 4, right aluminum plate; 40, mounting position; 41, flow channel; 5, bottom plate; 50, third groove; 6, box cover. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] With the development of time, the power density becomes higher and higher. The power device parallel technology and the integrated power unit series-parallel technology provide guarantees for achieving high current and high power of single-machine power modules. As the degree of integration increases, the power density of electronic components increases, resulting in extremely high heat generation of the devices, which will pose more safety hazards.

[0027] As device performance requirements and power density continue to increase, heat dissipation requirements are becoming increasingly stringent. Transformers are usually divided into oil-immersed and dry types. Dry-type transformers generally use air convection to dissipate heat and use solid insulating materials for insulation. However, when the line voltage is too high, the voltage can easily break through the air and discharge, causing danger. At this time, oil-immersed transformers are generally used. Since the breakdown temperature in oil is higher than that in air, oil-immersed transformers can effectively insulate.

[0028] However, as the degree of integration increases, the power density of electronic components increases, resulting in extremely high heat generation of the devices, which will pose many safety hazards. Therefore, the working winding of the transformer needs to be immersed in oil to meet the heat dissipation needs of the transformer. However, the oil tank will become hot due to the heat conducted during the operation of the transformer, resulting in limitations in the heat dissipation performance of the oil-immersed transformer. At the same time, in order to meet the filling of industrial heavy oil, the oil tank is usually designed to be large and too bulky.

[0029] Based on the above existing technical problems of large volume and heavy fuel tank, please refer to Figure 1-Figure 4, which is an embodiment of the utility model, an integrated fuel tank, including a box body formed by splicing or integrally forming a plurality of side panels, and a box cover 6 adapted to the box body, the splicing or integrally forming structure effectively ensures the sealing of the fuel tank box body, the box body is welded or integrally formed by a rear aluminum plate 1, a left aluminum plate 2, a front aluminum plate 3, a right aluminum plate 4 and a bottom plate 5, and the side panels and the bottom plate 5 on the box body are made of nano-aluminum alloy composite materials, which have the effects of good heat dissipation, noise reduction and energy loss compared with traditional metal materials, and have the effects of light weight, high strength, high rigidity, high shear strength, small thermal expansion, high thermal stability, excellent electrical conductivity, heat conductivity, wear resistance, corrosion resistance, etc.;

[0030] A plurality of first grooves 10, second grooves 20 and third grooves 50 are provided on the inner side wall of the box body for reducing deadweight and increasing oil storage capacity, and twelve first grooves 10 are provided on the side of the rear aluminum plate 1, nine second grooves 20 are provided on the side of the left aluminum plate 2, and fifteen third grooves 50 are provided on the upper side of the bottom plate 5. Under the condition of considering mechanical stress and strength and according to the maximum application condition, a corresponding number of first grooves 10, second grooves 20 and third grooves 50 can be evenly distributed on the side plate of the corresponding box body, and the effect of reducing weight and increasing oil storage volume can be achieved by increasing the groove notches;

[0031] A plurality of straight grooves 30 are provided on one side of the box body to increase the heat dissipation capacity by increasing the air contact surface. Four groups of straight grooves 30 are provided on the side of the front aluminum plate 3. The side of the front aluminum plate 3 located inside the box body is a plane structure. In consideration of mechanical stress and strength, according to the maximum application conditions, four groups of seven straight grooves 30 are provided. The outer grooves are opened to increase the air contact surface, and related equipment such as an external fan can also be connected to increase oil circulation.

[0032] The other side of the box is reserved for multiple installation positions 40 for IGBT installation. Twelve installation positions 40 are provided on the side of the right aluminum plate 4, and a plurality of flow channels 41 arranged horizontally are provided on the installation surface of the installation positions 40. The left aluminum plate 2 and the right aluminum plate 4 have the same structural design. Since the IGBT generates a lot of heat when working, the heat is transferred to the oil tank for cooling through aluminum. In addition, the additional flow channels 41 on the surface outside the IGBT installation further increase the heat dissipation area to maintain a good heat dissipation effect.

[0033] The top of the box cover 6 is provided with a lifting ring structure hole and an interface for connecting the transformer. The lifting ring structure hole facilitates assembly during loading and unloading, and the transformer in the box can be conveniently assembled through the interface.

[0034] The first groove 10, the second groove 20, and the third groove 50 opened on the upper side plate of the box body can open a corresponding number of grooves and notches according to the maximum application conditions while considering the mechanical stress and strength, so as to reduce the weight of the box body and increase the oil storage volume. Through the flow channel 41, the heat dissipation area can be increased to solve the heat generated by the IGBT when working. By opening grooves outside the I-shaped groove 30, on the one hand, the air contact surface can be increased, and on the other hand, an external fan and other related equipment can be connected to increase oil circulation.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated oil tank, comprising a box body formed by a plurality of side panels spliced ​​together or integrally formed, and a box cover (6) adapted to the box body, characterized in that: The inner side wall of the box body is provided with a plurality of first grooves (10), a second groove (20) and a third groove (50) for reducing deadweight and increasing oil storage capacity; one side of the box body is provided with a plurality of I-shaped grooves (30) for increasing heat dissipation capacity by increasing air contact surface; the other side of the box body is provided with a plurality of mounting positions (40) for IGBT mounting, and the mounting surfaces of the mounting positions (40) are provided with a plurality of flow channels (41) arranged and distributed in a transverse manner.

2. An integrated oil tank according to claim 1, characterized in that: The box body is composed of a rear aluminum plate (1), a left aluminum plate (2), a front aluminum plate (3), a right aluminum plate (4) and a bottom plate (5).

3. An integrated oil tank according to claim 2, characterized in that: Twelve of the first grooves (10) are provided, and the twelve first grooves (10) are evenly arranged on the side surface of the rear aluminum plate (1).

4. The integrated oil tank according to claim 2, characterized in that: There are nine second grooves (20), and the nine second grooves (20) are evenly arranged on the side surface of the left aluminum plate (2).

5. An integrated oil tank according to claim 4, characterized in that: Twelve of the installation positions (40) are provided, and the twelve installation positions (40) are evenly arranged on the side surface of the right aluminum plate (4).

6. The integrated oil tank according to claim 2, characterized in that: Four groups of the straight grooves (30) are provided on the side surface of the front aluminum plate (3), and the side surface of the front aluminum plate (3) located inside the box body is a planar structure.

7. The integrated oil tank according to claim 2, characterized in that: Fifteen third grooves (50) are provided, and the fifteen third grooves (50) are evenly arranged on the upper surface of the bottom plate (5).

8. The integrated oil tank according to claim 5, characterized in that: The left aluminum plate (2) and the right aluminum plate (4) are arranged in the same structure.

9. The integrated oil tank according to claim 1, characterized in that: The top of the box cover (6) is provided with a lifting ring structure hole and an interface for connecting a transformer.

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