Frequency conversion integrated motor

Abstract

The utility model relates to a frequency conversion integrated motor, and relates to the field of motors. The utility model provides a frequency conversion integrated motor. The frequency conversion integrated motor comprises a first shell and a second shell. According to the frequency conversion integrated motor, the horizontal mounting surface is integrally formed on the first shell, and the mounting surface is used for mounting the frequency converter, so that a mounting seat for mounting the frequency converter in the prior art is omitted, the height of the first shell is reduced, the height of the first shell and the second shell after mounting is reduced, and the gravity center of the whole motor is lowered; meanwhile, the frequency converter is installed in the second shell and attached to the installation face, heat generated by the frequency converter can be transmitted to the heat dissipation fins of the first shell through the installation face and the heat dissipation ribs for heat dissipation, and therefore the first shell can conduct heat dissipation on the motor and the frequency converter at the same time.

Description

Technical Field

[0001] The utility model relates to the field of motors, and in particular to a variable frequency integrated motor. Background Art

[0002] At present, with the rapid development of variable frequency speed regulation technology, various high-voltage frequency converters continue to appear, playing a huge role in energy saving in power plant electricity consumption and other aspects.

[0003] The inventor has found that in order to save space and facilitate operation, it is common to integrate the inverter with the motor. However, since there is a heat sink between the inverter and the motor, the height of the inverter is greatly increased. At the same time, when the inverter is installed vertically, the center of gravity of the whole machine is biased outward, increasing the vibration and noise generated during operation. In addition, an inverter that is too high not only increases the cost and installation difficulty, but also affects the appearance of the whole machine. Utility Model Content

[0004] The utility model aims to provide a frequency conversion integrated motor, which can reduce the height of the first shell and the second shell after installation, and can dissipate heat for the motor and the frequency converter.

[0005] The embodiment of the utility model is achieved as follows:

[0006] The utility model provides a frequency conversion integrated motor, comprising a first shell and a second shell; the first shell is used to install the motor, the first shell is cylindrical and its axis is arranged horizontally; the first shell is integrally formed with a horizontal mounting surface, the mounting surface passes through the highest line of the first shell, and the side wall of the first shell is also provided with a base surrounding the mounting surface, and a gap is formed between the base and the mounting surface; the first shell is provided with a plurality of axially extending heat dissipation fins at a position other than the mounting surface; heat dissipation ribs are formed between the mounting surface and the base; the second shell is installed above the base, and the base and the second shell form a cavity for installing a frequency converter, and the frequency converter is fitted and installed on the mounting surface.

[0007] Furthermore, the plurality of heat dissipation ribs are perpendicular to the axis of the first shell, one end of the heat dissipation rib is connected to the mounting surface, and the other end is connected to the inner wall of the gap.

[0008] Furthermore, a first sealing groove for installing a sealing ring is also provided on the base, and the sealing groove is provided on the end surface where the base is connected to the second shell.

[0009] Furthermore, the base is also provided with a wire outlet for connecting the motor and the inverter.

[0010] Furthermore, the base is provided with a guide groove, and the guide groove is arranged on the outer side wall of the base;

[0011] The second housing is provided with a guide boss;

[0012] The guide groove and the guide boss are arranged correspondingly, and the first shell and the second shell are positioned and clamped through the guide boss and the guide groove.

[0013] Furthermore, a motor shaft of the motor passes through the first shell, one end of the motor shaft is connected to a fan, and the fan is located outside the first shell.

[0014] Furthermore, an air guide cover for covering the fan is installed on the first shell, and an opening of the air guide cover faces the first shell and the second shell.

[0015] Furthermore, the frequency converter includes a control board, and the control board is in contact with the plane of the mounting surface.

[0016] Further, the second shell is sealed with an upper cover of the inverter; and / or the second shell is sealed with a display screen of the inverter.

[0017] Furthermore, the second housing is provided with a waterproof connector for connecting to an external client power supply.

[0018] The beneficial effects of the embodiments of the utility model are:

[0019] The variable frequency integrated motor forms a horizontal mounting surface integrally on the first shell, and uses the mounting surface to mount the frequency converter. This arrangement eliminates the mounting base for mounting the frequency converter in the prior art, reduces the height of the first shell, and further reduces the height of the first shell and the second shell after installation, thereby lowering the center of gravity of the entire machine. At the same time, the frequency converter is installed in the second shell and fits the mounting surface. The heat generated by the frequency converter can be transferred to the heat dissipation fins of the first shell through the mounting surface and the heat dissipation ribs for dissipation, so that the first shell can dissipate heat for the motor and the frequency converter at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a cross-sectional view of the variable frequency integrated motor according to an embodiment of the utility model;

[0022] Figure 2 This is a side view of the variable frequency integrated motor according to an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the second housing of the embodiment of the utility model;

[0024] Figure 4 for Figure 3 A top view of

[0025] Figure 5 for Figure 3 Bottom view of

[0026] Figure 6 This is a schematic diagram of the structure of the first shell of an embodiment of the utility model;

[0027] Figure 7 for Figure 6 Top view of the .

[0028] Icons: 100-inverter motor; 110-first housing; 111-heat sink; 112-end cover; 120-base; 121-gap; 122-mounting surface; 123-heat sink rib; 124-first sealing groove; 1241-first sealing ring; 125-wire outlet; 126-guide groove; 130-motor; 131-motor shaft; 140-second housing; 141-guide boss; 142-first opening; 1421-second sealing groove; 1422-second sealing ring; 143-second opening; 1431-third sealing groove; 1432-third sealing ring; 144-waterproof connector; 145-third opening; 150-inverter; 151-control panel; 152-upper cover; 153-display screen; 160-fan; 170-wind deflector. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 indirectly connected 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 according to specific circumstances.

[0035] Please refer to Figure 1-Figure 2 The present embodiment provides a variable frequency integrated motor 100, which has a simple structure, is easy to assemble, and has a coordinated appearance.

[0036] Please refer to Figure 1-Figure 2The present embodiment provides a variable frequency motor 100, comprising a first shell 110 and a second shell 140; the first shell 110 is used to install a motor 130, the first shell 110 is cylindrical and its axis is arranged horizontally; the first shell 110 is integrally formed with a horizontal mounting surface 122, the mounting surface 122 passes through the highest line of the first shell 110, and the side wall of the first shell 110 is also provided with a base 120 surrounding the mounting surface 122, and a gap 121 is formed between the base 120 and the mounting surface 122; the first shell 110 is provided with a plurality of axially extending heat dissipation fins 111 at a position other than the mounting surface 122; a heat dissipation rib 123 is formed between the mounting surface 122 and the base 120; the second shell is installed above the base 120, and the base 120 and the second shell form a cavity for installing a frequency converter, and the frequency converter is fitted and installed on the mounting surface 122.

[0037] It can be understood that by integrally forming a horizontal mounting surface 122 on the first shell 110 and using the mounting surface 122 to install the inverter 150, such a configuration eliminates the mounting base for installing the inverter in the prior art, reduces the height of the first shell 110, and further reduces the height of the first shell 110 and the second shell 140 after installation, thereby lowering the center of gravity of the entire machine; at the same time, the inverter 150 is installed in the second shell 140 and fits against the mounting surface 122, and the heat generated by the inverter 150 can be transferred to the heat dissipation fins 111 of the first shell 110 through the mounting surface 122 and the heat dissipation ribs 123 for dissipation, so that the first shell 110 can simultaneously dissipate heat for the motor 130 and the inverter 150.

[0038] Please refer to Figure 1 In this embodiment, the variable frequency motor 100 includes a frequency converter 150 .

[0039] Specifically, the frequency converter 150 includes an upper cover 152 and a display screen 153 and a control board 151 connected by wires.

[0040] Please refer to Figure 3-Figure 5 In this embodiment, the variable frequency motor 100 includes a second housing 140 .

[0041] For details, please refer to Figure 3 The second shell 140 is a rectangular shell structure, and one end of the second shell 140 is an open end; the second shell 140 is used to install the inverter 150.

[0042] A first opening 142 and a second opening 143 are provided on the top of the second housing 140. Figure 4The first opening 142 is used to install the upper cover 152 of the inverter 150, and a second sealing groove 1421 is set along the outer side of the first opening 142; the upper cover 152 is installed at the first opening 142 of the second housing 140 from the outside through fasteners, and is sealed by the second sealing ring 1422 installed in the second sealing groove 1421. This arrangement can facilitate the wiring of other components of the inverter 150. Please refer to Figure 5 The second opening 143 is used to install the display screen 153 of the inverter 150, and a third sealing groove 1431 is set along the inner side of the second opening 143; the display screen 153 is loaded from the inner side of the second shell 140, and is installed at the second opening 143 of the second shell 140 through fasteners, and is sealed by a third sealing ring 1432 installed in the third sealing groove 1431.

[0043] Please refer to Figure 3 Four guide bosses 141 with a certain angle are symmetrically arranged at the open end of the second shell 140, that is, the guide bosses 141 with a trapezoidal structure.

[0044] Please refer to Figure 3 Three third openings 145 are provided on the side plate of the second housing 140 for installing a waterproof connector 144, which is used for connecting an external client power supply.

[0045] Please refer to Figure 6-Figure 7 In this embodiment, the variable frequency motor 100 includes a first housing 110 .

[0046] Specifically, the first shell 110 is a cylindrical structure with a through cavity, and the axis of the first shell 110 is arranged horizontally, and a front cover 112 and a rear cover 112 are installed at both ends of the cylindrical structure, and the middle cavity is used to install the motor 130; and a mounting surface 122 integrally formed with the first shell 110 extends from the top of the first shell 110, and the mounting surface 122 passes through the highest line of the first shell 110.

[0047] Please refer to Figure 6 Three groups of heat dissipation fins 111 are arranged on the outer wall of the first housing 110, and the three groups of heat dissipation fins 111 and the base 120 are arranged at intervals of 90 degrees along the circumference of the cylindrical structure. The heat dissipation fins 111 group includes a plurality of heat dissipation fins 111 arranged in sequence for heat dissipation, and the plurality of heat dissipation fins 111 are arranged on the outer wall of the first housing 110 along the axial direction of the first housing 110.

[0048] For details, please refer to Figure 6-Figure 7A rectangular base 120 extends from the top of the first shell 110 , and the outer wall of the base 120 surrounds the mounting surface 122 . The base 120 is recessed inward along the mounting surface 122 to form a gap 121 , and two heat dissipation ribs 123 are symmetrically arranged on both sides of the mounting surface 122 .

[0049] Please refer to Figure 6-Figure 7 The heat dissipation rib 123 group includes a plurality of heat dissipation ribs 123 arranged in sequence and located in the gap 121, and one end of the plurality of heat dissipation ribs 123 is connected to the mounting surface 122, and the other end is connected to the inner wall of the base 120; at the same time, the heat dissipation rib 123 is perpendicular to the axis of the first shell 110.

[0050] Please refer to Figure 6-Figure 7 The outer wall of the base 120 is provided with four symmetrically arranged guide grooves 126, which are angled and matched with four guide bosses 141; the first shell 110 and the second shell 140 are positioned and connected after being guided by the guide bosses 141 and the guide grooves 126. This arrangement allows the second shell 140 to be conveniently and accurately positioned when installed on the base 120, and can also limit the second shell 140 in four directions of front, back, left, and right.

[0051] Please refer to Figure 6-Figure 7 A rectangular first sealing groove 124 is also provided on the base 120 . The first sealing groove 124 is provided on the end surface where the base 120 and the second shell 140 are connected, and is used for installing a first sealing ring 1241 .

[0052] Please refer to Figure 6-Figure 7 The base 120 is also provided with a wire outlet 125 , and the wire outlet 125 is used for connecting the motor 130 and the control board 151 of the inverter 150 .

[0053] It is worth mentioning that the plane of the mounting surface 122 can be lower than, equal to, or higher than the top plane of the base 120 .

[0054] In this embodiment, the base 120 and the first housing 110 are integrally formed. Of course, in other embodiments, the base 120 and the first housing 110 can also be separately formed and then installed.

[0055] Among them, since the existing housing for mounting the inverter, especially the platform for mounting the control board of the inverter, protrudes a certain height compared to the motor, the center of gravity height of the motor will be increased. The mounting seat of the original inverter 150 and the first housing 110 are integrated to form the first housing 110, the mounting surface 122, the base 120 and the heat dissipation ribs 123 formed in one piece in this embodiment.

[0056] It is understandable that when the first housing 110 and the second housing 140 are connected and fixed, the control board 151 of the inverter 150 is accommodated in the base 120 of the first housing 110, and after the control board 151 and the base 120 are fixed, they are directly in contact with the mounting surface 122; since the mounting surface 122 is set in the base 120, and the height of the mounting surface 122 can be set according to the size of the inverter 150. This setting can reduce the height of the first housing 110 and reduce the height of the first housing 110 and the second housing 140 after installation, thereby reducing the center of gravity of the whole machine and the vibration and noise generated during operation.

[0057] At the same time, the control board 151 of the inverter 150 is in direct contact with the plane of the mounting surface 122. The heat generated by the control board 151 can be transferred to the heat dissipation fins 111 of the first shell 110 through the mounting surface 122 and the heat dissipation ribs 123 for dissipation, so that the first shell 110 dissipates heat for the motor 130 and the inverter 150 at the same time.

[0058] Please refer to Figure 1 In the embodiment, the variable frequency motor 100 includes a motor 130 .

[0059] Specifically, the motor 130 is accommodated in the first housing 110 , and the motor shafts 131 at both ends of the motor 130 penetrate the end covers 112 at both sides of the first housing 110 .

[0060] Please refer to Figure 1 In this embodiment, the variable frequency motor 100 includes a fan 160 .

[0061] Specifically, the fan 160 is located outside the first housing 110 and connected to one end of the motor shaft 131 .

[0062] Please refer to Figure 1 In this embodiment, the variable frequency motor 100 includes an air guide cover 170 .

[0063] Specifically, the air guide cover 170 is installed on the first housing 110 and covers the fan 160, and the opening of the air guide cover 170 faces the first housing 110 and the second housing 140. The coaxial fan 160 rotates with the motor shaft 131, and the wind thrown out passes through the air guide cover 170 and flows through the heat dissipation fins 111 of the first housing 110, thereby cooling the motor 130 and the inverter 150.

[0064] The working principle of the frequency conversion integrated motor 100 in this embodiment is:

[0065] When the frequency conversion integrated motor 100 is working, the control board 151 is in contact with the mounting surface 122, and the heat generated by the operation of the control board 151 of the frequency converter 150 is transferred to the heat dissipation fins 111 of the first housing 110 through the mounting surface 122 and the heat dissipation ribs 123 for heat dissipation. At the same time, the motor 130 is working, driving the motor shaft 131 to rotate, and the motor shaft 131 drives the coaxial fan 160 to rotate, and the thrown wind flows through the heat dissipation fins 111 of the first housing 110 through the wind guide cover 170, so that the first housing 110 dissipates heat for the motor 130 and the frequency converter 150 at the same time.

[0066] In summary, the frequency converter integrated motor 100 of the present embodiment has a horizontal mounting surface 122 integrally formed on the first shell 110, and the mounting surface 122 is used to install the frequency converter 150. This arrangement eliminates the mounting base for installing the frequency converter in the prior art, reduces the height of the first shell 110, and further reduces the height of the first shell 110 and the second shell 140 after installation, thereby lowering the center of gravity of the entire machine; at the same time, the frequency converter 150 is installed in the second shell 140 and fits with the mounting surface 122. The heat generated by the frequency converter 150 can be transferred to the heat dissipation fins 111 of the first shell 110 through the mounting surface 122 and the heat dissipation ribs 123 for dissipation, so that the first shell 110 can simultaneously dissipate heat for the motor 130 and the frequency converter 150.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A variable frequency motor, characterized in that: include: A first housing, the first housing is used to install the motor, the first housing is cylindrical and its axis is arranged horizontally; the first housing is integrally formed with a horizontal mounting surface, the mounting surface passes through the highest line of the first housing, and the side wall of the first housing is also provided with a base surrounding the mounting surface, and a gap is formed between the base and the mounting surface; The first shell is provided with a plurality of axially extending heat dissipation fins at positions other than the mounting surface; heat dissipation ribs are formed between the mounting surface and the base; A second shell is installed above the base, the base and the second shell form a cavity for installing the inverter, and the inverter is installed on the installation surface in a close fit.

2. The frequency conversion integrated motor according to claim 1, characterized in that: The plurality of heat dissipation ribs are perpendicular to the axis of the first shell, one end of the plurality of heat dissipation ribs is connected to the mounting surface, and the other end is connected to the inner wall of the base.

3. The variable frequency motor according to claim 1, characterized in that: The base is also provided with a first sealing groove for installing a sealing ring, and the first sealing groove is provided at the end surface where the base is connected to the second shell.

4. The variable frequency motor according to claim 1, characterized in that: The base is also provided with a wire outlet for connecting the motor and the frequency converter.

5. The variable frequency motor according to claim 1, characterized in that: The base is provided with a guide groove, and the guide groove is arranged on the outer side wall of the base; The second housing is provided with a guide boss; The guide groove and the guide boss are arranged correspondingly, and the first shell and the second shell are positioned and clamped through the guide boss and the guide groove.

6. The variable frequency motor according to claim 1, characterized in that: The motor shaft of the motor passes through the first shell, one end of the motor shaft is connected to a fan, and the fan is located outside the first shell.

7. The variable frequency motor according to claim 6, characterized in that: The first shell is provided with an air guide cover for covering the fan, and an opening of the air guide cover faces the first shell and the second shell.

8. The variable frequency motor according to claim 1, characterized in that: The frequency converter comprises a control board, and the control board is in contact with the mounting surface.

9. The frequency conversion integrated motor according to claim 1, characterized in that: The second housing is sealed with an upper cover of the frequency converter; and / or The display screen of the frequency converter is sealedly connected to the second shell.

10. The variable frequency motor according to claim 1, characterized in that: The second housing is provided with a waterproof connector for externally connecting to an external client power supply.

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