Frequency conversion and speed regulation all-in-one machine

Abstract

The utility model discloses a frequency conversion and speed regulation all-in-one machine, which comprises a motor, a transformer and a frequency converter, the transformer and the motor are sequentially arranged along the axial direction of the motor, the frequency converter is arranged at the top of the motor, and a first shell is arranged outside the transformer and is of a cylindrical structure. The top of the first shell is provided with a first electrical cavity used for communicating the transformer and the frequency converter. The whole machine is compact in structure, small in occupied space and high in heat dissipation efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a frequency control integration machine. BACKGROUND

[0002] The frequency control integration machine is widely used in fan, water pump, belt conveyor and other equipment. The frequency control integration machine includes motor, frequency converter, transformer and other components. The frequency converter and the transformer are designed in a split type, which occupies a large space and increases the difficulty of installation and maintenance. In addition, the heat generated during equipment operation is difficult to effectively dissipate, and the heat dissipation efficiency is low, which affects the service life of the equipment.

[0003] The above information disclosed in the background is only used to increase the understanding of the background of the application, and therefore, it can include prior art known by those skilled in the art. SUMMARY

[0004] In view of the problems pointed out in the background, the utility model provides a frequency control integration machine, which is compact in structure, small in space occupation and high in heat dissipation efficiency.

[0005] To achieve the above-mentioned utility model purposes, the utility model adopts the following technical solutions:

[0006] In some embodiments of the application, a frequency control integration machine is provided, which includes a motor, a transformer and a frequency converter. The transformer and the motor are arranged in sequence along the axial direction of the motor. The frequency converter is arranged on the top of the motor. The transformer is externally provided with a first shell. The first shell is in a cylindrical structure. The top of the first shell is provided with a first electrical cavity for communicating the transformer and the frequency converter.

[0007] In some embodiments of the application, the motor includes a second shell. The second shell is in a cylindrical structure. The outer diameter of the first shell is the same as that of the second shell.

[0008] In some embodiments of the application, a cooling water channel is arranged on the second shell.

[0009] In some embodiments of the application, a water cooling plate is arranged on the bottom of the frequency converter. The water cooling plate is connected with the cooling water channel.

[0010] In some embodiments of the application, the motor and the transformer are connected through a first flange, and the motor and the frequency converter are connected through a second flange.

[0011] In some embodiments of the application, the first shell includes a circumferential shell and an end cover. The circumferential shell is connected with the first flange.

[0012] In some embodiments of the present application, an external part of the first electrical cavity is provided with a power cable entry cavity.

[0013] In some embodiments of the present application, the frequency converter comprises a second electrical cavity and a control cable entry cavity.

[0014] In some embodiments of the present application, a wiring terminal is reserved at a rear end of the transformer, and the wiring terminal is used for connecting a power supply and a load.

[0015] In some embodiments of the present application, the transformer is a dry-type or oil-immersed transformer.

[0016] Compared with the prior art, the utility model has the advantages and positive effects that:

[0017] The frequency conversion and speed regulation integrated machine disclosed in the present application comprises a motor, a transformer and a frequency converter, the transformer and the motor are arranged in sequence along an axial direction of the motor, the transformer is arranged at a rear end of the motor, and the frequency converter is arranged at a top of the motor. The motor, the transformer and the frequency converter form a compact integrated structure, the occupied space is reduced, and the integrated design is also helpful to reduce the installation and maintenance difficulty. An external part of the transformer is provided with a first shell, the first shell is in a cylindrical structure, the cylindrical first shell has a small volume and a large capacity, the surface area and the volume ratio are increased, heat dissipation is facilitated, and thus the equipment heat dissipation efficiency is improved.

[0018] Other features and advantages of the present application will become more apparent after reading the specific embodiments of the present application in combination with the accompanying drawings. DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and other accompanying drawings can also be obtained by those skilled in the art without any creative labor.

[0020] Figure 1 It is a structural diagram of the frequency conversion and speed regulation integrated machine according to some embodiments.

[0021] Reference signs:

[0022] 1, motor; 2, transformer; 3, frequency converter; 4, first shell; 41, circumferential shell; 42, end cover; 5, first electrical cavity; 6, second electrical cavity; 7, power cable entry cavity; 8, control cable entry cavity; 9, first cover plate; 10, second cover plate; 11, first lifting lug; 12, second lifting lug; 13, first flange; 14, second flange; 15, third flange; 16, water inlet; 17, water outlet; 18, cooling water channel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0024] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "above", "upper" and "upper surface" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under surface" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0028] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0029] In some embodiments of the present application, a variable frequency speed regulation all-in-one machine is provided, referring to Figure 1 , comprising a motor 1, a transformer 2 and a frequency converter 3, the transformer 2 is arranged beside the motor 1, the transformer 2 and the motor 1 are arranged in sequence along the axial direction of the motor 1, the transformer 2 is arranged at the rear end of the motor 1, and the frequency converter 3 is arranged at the top of the motor 1. The motor 1, the transformer 2 and the frequency converter 3 form a compact integrated structure, which reduces the occupied space, and the integrated design also helps to reduce the difficulty of installation and maintenance.

[0030] The transformer 2 is provided with a first shell 4, the first shell 4 is a cylindrical structure, and the top of the first shell 4 is provided with a first electrical cavity 5 for communicating the transformer 2 and the frequency converter 3.

[0031] The cylindrical first shell 4 has small volume and large capacity, which increases the surface area and volume ratio, is beneficial to heat dissipation, and thus improves the heat dissipation efficiency of the equipment.

[0032] In some embodiments of the present application, the motor 1 comprises a second shell (not marked), the second shell is a cylindrical structure, and the outer diameter of the first shell 4 is the same as that of the second shell. The outer shape of the first shell 4 and the second shell is unified, which improves the unity of the overall structure.

[0033] In some embodiments of the present application, the motor 1 and the transformer 2 are connected through a first flange 13, and the motor 1 and the frequency converter 3 are connected through a second flange 14, which is convenient for installation and improves the structural reliability. The flange surface is provided with a sealing ring to achieve waterproof and dustproof.

[0034] In some embodiments of the present application, the first shell 4 comprises a circumferential shell 41 and an end cover 42, and the circumferential shell 41 is connected with the first flange 13. The end cover 42 is provided with a sealing ring for waterproof and dustproof.

[0035] In some embodiments of the present application, the top of the first electrical cavity 5 is provided with a first cover plate 9, which is convenient for maintenance of the internal structure.

[0036] In some embodiments of the present application, the first electrical cavity 5 is externally provided with a power cable inlet cavity 7 to facilitate wiring.

[0037] In some embodiments of the present application, the frequency converter 3 comprises a second electrical cavity 6 and a control cable inlet cavity 8. The second electrical cavity 6 is internally provided with electrical devices, including rectifier-inverter units, and externally provided with the control cable inlet cavity 8 to achieve separate arrangement from the power cable.

[0038] In some embodiments of the present application, the top of the second electrical cavity 6 is provided with a second cover plate 10 to facilitate maintenance of the internal structure.

[0039] In some embodiments of the present application, the rear end of the transformer 2 is provided with a wiring terminal (not shown) for connecting the power supply and the load, which is convenient for users to wire.

[0040] In some embodiments of the present application, the second shell is provided with a cooling water channel 18, and external water flows into the cooling water channel 18 through a water inlet 16 and flows out of the cooling water channel 18 through a water outlet 17. The cooling water channel 18 is arranged in a serpentine shape along the second shell to improve the cooling effect.

[0041] In some embodiments of the present application, the bottom of the frequency converter 3 is provided with a water cooling plate (not shown) for cooling and heat dissipation of the heat generating devices such as rectifier-inverter units. The water cooling plate is connected with the cooling water channel 18. Water circulates through the cooling water channel 18 and the water cooling plate to form an efficient heat dissipation cycle, thereby improving the heat dissipation efficiency of the motor 1 and the frequency converter 3.

[0042] In some embodiments of the present application, the first electrical cavity 5 is externally provided with a first lifting lug 11, and the second shell is provided with a second lifting lug 12 to facilitate hoisting.

[0043] In some embodiments of the present application, the frequency converter 3 and the transformer 2 are connected by a third flange 15, specifically, the third flange 15 is arranged between the frequency converter 3 and the first electrical cavity 5.

[0044] In some embodiments of the present application, the transformer 2 is a dry-type or oil-immersed transformer.

[0045] In some embodiments of the present application, the frequency converter 3 is provided with a multi-layer shielding design to reduce the interference of high-frequency signals on external circuits.

[0046] In some embodiments of the present application, the first shell 4 is grounded to further reduce electromagnetic radiation.

[0047] In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The above merely is the specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, and all should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A variable frequency speed regulation all-in-one machine, characterized in that, The motor, the transformer and the frequency converter are sequentially arranged along the axial direction of the motor, the frequency converter is arranged on the top of the motor, the transformer is externally provided with a first shell, the first shell is in a cylindrical structure, and the top of the first shell is provided with a first electrical cavity for communicating the transformer and the frequency converter.

2. The frequency conversion and speed regulation integrated machine according to claim 1, characterized in that, the motor comprises a second shell, the second shell is in a cylindrical structure, and the outer diameter of the first shell is the same as that of the second shell.

3. The frequency conversion and speed regulation integrated machine according to claim 2, characterized in that, the second shell is provided with a cooling water channel.

4. The frequency conversion and speed regulation integrated machine according to claim 3, characterized in that, the bottom of the frequency converter is provided with a water cooling plate, and the water cooling plate is connected with the cooling water channel.

5. The frequency conversion and speed regulation integrated machine according to claim 1, characterized in that, the motor and the transformer are connected through a first flange, and the motor and the frequency converter are connected through a second flange.

6. The frequency conversion and speed regulation integrated machine according to claim 5, characterized in that, the first shell comprises a circumferential shell and an end cover, and the circumferential shell is connected with the first flange.

7. The frequency conversion and speed regulation integrated machine according to claim 1, characterized in that, the outside of the first electrical cavity is provided with a power cable inlet cavity.

8. The frequency conversion and speed regulation integrated machine according to claim 1, characterized in that, the frequency converter comprises a second electrical cavity and a control cable inlet cavity.

9. The frequency conversion and speed regulation integrated machine according to claim 1, characterized in that, the rear end of the transformer is provided with a terminal for connecting a power supply and a load.

10. The frequency conversion and speed regulation integrated machine according to claim 1, characterized in that, the transformer is a dry-type or oil-immersed transformer.

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