CN217883122U

CN217883122U - Frequency conversion efficient three-phase synchronous motor

Info

Publication number: CN217883122U
Application number: CN202220980590.9U
Authority: CN
Inventors: 王东
Original assignee: Shenyang Electric Machinery Manufacturing Co ltd
Current assignee: Shenyang Electric Machinery Manufacturing Co ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-11-22
Anticipated expiration: 2032-04-26

Abstract

The utility model relates to a frequency conversion efficient three-phase synchronous machine belongs to three-phase synchronous machine technical field, including the bearing base, the top intermediate position fixed mounting of bearing base has equipment shell. The utility model discloses, the axis of rotation can drive main radiator fan when rotating and rotate the equipment cooling that dispels the heat to equipment shell inside, the vice radiator fan of gear revolve is accepted to main radiator fan accessible when rotating, make vice radiator fan can rotate in the inside of equipment box, make the converter and the main control system of equipment box inner wall can be dispelled the heat by the forced air cooling, such high-efficient frequency conversion type three-phase synchronous machine can drive main radiator fan and vice radiator fan and rotate simultaneously when the main shaft rotates, main radiator fan can dispel the heat to the motor host, vice radiator fan can carry out the forced air cooling heat dissipation to main control system and converter, make main control system and converter need not additionally to dispose the radiating equipment again, power consumption is reduced, the normal operating of equipment has been guaranteed.

Description

Frequency conversion efficient three-phase synchronous motor

Technical Field

The utility model relates to a three-phase synchronous machine technical field especially relates to a frequency conversion efficient three-phase synchronous machine.

Background

The three-phase motor is an alternating-current motor driven by three-phase alternating current. The three-phase motor is characterized in that when three-phase stator windings (with the difference of 120 electrical degrees) of the motor are electrified with three-phase alternating current, a rotating magnetic field is generated and cuts a rotor winding to generate electricity. The core of the frequency conversion technology of the three-phase synchronous motor is a frequency converter, the automatic regulation of the running speed rate of the motor is realized by converting the power supply frequency, and the fixed grid frequency of 50Hz is changed into the variable frequency of 30-130 Hz.

The existing high-efficiency variable-frequency three-phase synchronous motor uses a frequency converter to carry out variable-frequency speed regulation, and a heat dissipation structure inside a motor inconveniently dissipates heat of the frequency converter and a controller, and a heat dissipation fan is required to be arranged in the frequency converter to dissipate heat, so that extra power consumption is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a frequency conversion efficient three-phase synchronous machine has solved the inconvenient problem that carries out the heat dissipation to the converter simultaneously of current three-phase synchronous machine heat radiation structure.

The utility model provides an above-mentioned technical problem's scheme as follows: the utility model provides a frequency conversion efficient three-phase synchronous machine, includes the bearing base, the top intermediate position fixed mounting of bearing base has the equipment shell, the inner wall intermediate position of equipment shell is provided with the stator, the left side position through connection of bearing base has the axis of rotation, the outer wall of axis of rotation is close to left side edge swivelling joint and has fixing bearing, fixing bearing's outer wall swivelling joint has the bearing frame, the outer wall of axis of rotation is close to the position fixed mounting of stator has the rotor, the right side swivelling joint of axis of rotation has pulse coder, the outer wall of axis of rotation is close to pulse coder's left side position fixed mounting and has main radiator fan, the equal swivelling joint in both sides that the outer wall of axis of rotation is close to main radiator fan has the protection frame, the top meshing of main radiator fan is connected with accepts the gear, the top meshing of accepting the gear is connected with vice radiator fan, the equal swivelling joint in both sides of vice radiator fan has the equipment case, the inner wall bottom of equipment case is close to left side edge fixedly connected with converter, the inner wall bottom of equipment case is close to right side edge fixed mounting has the main control system.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the outer walls of the main cooling fan and the auxiliary cooling fan are provided with bearing wheels, and the outer walls of the bearing wheels are provided with connecting tooth blocks.

Furthermore, the protection frames on the two sides are fixedly connected with the bottom of the inner wall of the equipment shell.

Furthermore, both sides the rotation hole with the looks adaptation of axis of rotation is seted up in the left side of protection frame, and the inner wall in rotation hole is provided with fixing bearing, just the axis of rotation passes through fixing bearing and protection frame swivelling joint.

Furthermore, both sides the right side of protection frame has all been seted up the ventilation hole, and the inner wall in ventilation hole all is provided with the protection network.

Furthermore, the both sides of equipment shell are close to positive surface one end and rear surface and all seted up the arrangement hole, and the inner wall fixed mounting in arrangement hole has the dust screen.

Furthermore, the bottom of the equipment shell is provided with a through hole matched with the bearing gear, the inner wall of the through hole is rotatably connected with the bearing gear, and the bottom of the equipment box is provided with a connecting hole matched with the through hole.

Further, the inner wall top of equipment box all is provided with the division board near intermediate position both sides, and the louvre has all been seted up with the outer wall of equipment box to the left side of division board.

The utility model provides a frequency conversion efficient three-phase synchronous machine has following advantage:

the rotating shaft can drive the main cooling fan to rotate to cool the equipment inside the equipment shell, the main cooling fan can accept the gear rotating pair cooling fan through the rotating shaft, the auxiliary cooling fan can rotate inside the equipment box, the frequency converter and the control host on the inner wall of the equipment box can be cooled by air, the protective frame is provided with the protective net, dust brought by wind power is difficult to enter the equipment shell or the equipment box, the internal equipment is protected, the high-efficiency frequency conversion type three-phase synchronous motor can drive the main cooling fan and the auxiliary cooling fan to rotate simultaneously when the main shaft rotates, the main cooling fan can cool the motor host, the auxiliary cooling fan can cool the control host and the frequency converter, the control host and the frequency converter do not need to be additionally provided with cooling equipment, the power consumption is reduced, and the normal operation of the equipment is guaranteed.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The following examples and the accompanying drawings illustrate specific embodiments of the present invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a three-dimensional effect diagram of a variable frequency high-efficiency three-phase synchronous motor according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a variable-frequency high-efficiency three-phase synchronous motor according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a main cooling fan in a variable-frequency high-efficiency three-phase synchronous motor according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a protection frame in a frequency conversion efficient three-phase synchronous motor according to an embodiment of the present invention.

In the drawings, the reference numbers indicate the following list of parts:

1. a load-bearing base; 2. an equipment housing; 3. a stator; 4. a rotating shaft; 5. fixing the bearing; 6. a bearing frame; 7. a rotor; 8. a pulse encoder; 9. a main heat radiation fan; 10. a protective frame; 11. a receiving gear; 12. a sub radiator fan; 13. an equipment box; 14. a frequency converter; 15. and a control host.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-4, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-4, a frequency conversion efficient three-phase synchronous motor, including bearing base 1, bearing base 1's top intermediate position fixed mounting has equipment shell 2, equipment shell 2's inner wall intermediate position is provided with stator 3, bearing base 1's left side position through connection has axis of rotation 4, the outer wall of axis of rotation 4 is close to left side edge swivelling joint has fixing bearing 5, fixing bearing 5's outer wall swivelling joint has bearing frame 6, the outer wall of axis of rotation 4 is close to stator 3's fixed position and has rotor 7, the right side swivelling joint of axis of rotation 4 has pulse coder 8, the outer wall of axis of rotation 4 is close to pulse coder 8's left side position fixed mounting has main radiator fan 9, the outer wall of axis of rotation 4 is close to main radiator fan 9's both sides equal swivelling joint has protection frame 10, main radiator fan 9's top meshing is connected with accepts gear 11, the top meshing of accepting gear 11 is connected with vice radiator fan 12, vice radiator fan 12's both sides equal swivelling joint has equipment box 13, equipment box 13 is close to left side edge fixedly connected with converter 14 in equipment box 13's inner wall bottom, equipment box 13's inner wall bottom is close to right side edge fixed mounting has control host computer 15.

Preferably, the outer walls of the main cooling fan 9 and the auxiliary cooling fan 12 are provided with a bearing wheel, and the outer walls of the bearing wheels are provided with connecting tooth blocks.

Preferably, the two side protection frames 10 are fixedly connected with the bottom of the inner wall of the equipment shell 2.

Preferably, the left side of the two-side protection frame 10 is provided with a rotation hole matched with the rotation shaft 4, the inner wall of the rotation hole is provided with a fixed bearing, and the rotation shaft 4 is rotatably connected with the protection frame 10 through the fixed bearing.

Preferably, the right sides of the two side protection frames 10 are both provided with ventilation holes, and the inner walls of the ventilation holes are both provided with protective nets.

Preferably, the placing holes are formed in one end, close to the front surface, of the two sides of the equipment shell 2 and the rear surface, and the dust screens are fixedly mounted on the inner walls of the placing holes.

Preferably, the bottom of the equipment housing 2 is provided with a through hole matched with the receiving gear 11, the inner wall of the through hole is rotatably connected with the receiving gear 11, and the bottom of the equipment box 13 is provided with a connecting hole matched with the through hole.

Preferably, the top of the inner wall of the equipment box 13 is close to the two sides of the middle position, and the heat dissipation holes are formed in the left side of the partition plate and the outer wall of the equipment box 13.

The utility model discloses a concrete theory of operation and application method do: the axis of rotation 4 passes through rotor 7 and rotates at the inner wall of stator 3, axis of rotation 4 can drive main radiator fan 9 when rotating and rotate the equipment of 2 insides of equipment casing and dispel the heat and cool down, main radiator fan 9 accessible accepts gear 11 revolute pair radiator fan 12 when rotating, make vice radiator fan 12 can rotate at the inside of equipment box 13, make converter 14 and the main control system 15 of equipment box 13 inner wall can be dispelled the heat by the forced air cooling, pulse coder 8 can real-time detection axis of rotation 4's rotational speed and feed back to main control system 15 department, protection frame 10 department is provided with the protection network, make the dust that wind-force brought in be difficult to get into equipment casing 2 or equipment box 13, inside equipment has been protected.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that the equivalent embodiments of the present invention are equivalent embodiments of the present invention, and that the changes, modifications and evolutions made by the above-disclosed technical contents are not departed from the technical scope of the present invention; meanwhile, any changes, modifications, evolutions, etc. of equivalent changes made to the above embodiments according to the essential technology of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a frequency conversion efficient three-phase synchronous machine, includes bearing base (1), its characterized in that: an equipment shell (2) is fixedly arranged in the middle of the top of the bearing base (1), a stator (3) is arranged in the middle of the inner wall of the equipment shell (2), a rotating shaft (4) is penetratingly connected at the left position of the bearing base (1), the outer wall of the rotating shaft (4) is rotatably connected with a fixed bearing (5) near the left edge, the outer wall of the fixed bearing (5) is rotationally connected with a bearing frame (6), a rotor (7) is fixedly arranged on the outer wall of the rotating shaft (4) close to the stator (3), the right side of the rotating shaft (4) is rotatably connected with a pulse encoder (8), a main cooling fan (9) is fixedly arranged on the outer wall of the rotating shaft (4) at the position close to the left side of the pulse encoder (8), the two sides of the outer wall of the rotating shaft (4) close to the main cooling fan (9) are both rotationally connected with a protective frame (10), the top of the main cooling fan (9) is engaged with a bearing gear (11), the top of the bearing gear (11) is engaged with an auxiliary heat radiation fan (12), two sides of the auxiliary radiating fan (12) are rotatably connected with an equipment box (13), the bottom of the inner wall of the equipment box (13) is fixedly connected with a frequency converter (14) near the left edge, the bottom of the inner wall of the equipment box (13) is fixedly provided with a control host (15) close to the edge of the right side.

2. The variable-frequency high-efficiency three-phase synchronous motor as claimed in claim 1, wherein the outer walls of the main cooling fan (9) and the auxiliary cooling fan (12) are provided with bearing wheels, and the outer walls of the bearing wheels are provided with connecting blocks.

3. The variable-frequency high-efficiency three-phase synchronous motor according to claim 1, wherein the two protection frames (10) are fixedly connected with the bottom of the inner wall of the equipment housing (2).

4. The variable-frequency high-efficiency three-phase synchronous motor according to claim 1, wherein a rotating hole matched with the rotating shaft (4) is formed in the left side of the protection frame (10) on two sides, a fixed bearing is arranged on the inner wall of the rotating hole, and the rotating shaft (4) is rotatably connected with the protection frame (10) through the fixed bearing.

5. The variable-frequency high-efficiency three-phase synchronous motor according to claim 1, wherein the right sides of the protection frames (10) at both sides are provided with vent holes, and the inner walls of the vent holes are provided with protective nets.

6. The variable-frequency high-efficiency three-phase synchronous motor as claimed in claim 1, wherein the two sides of the equipment housing (2) are provided with a placement hole at one end close to the front surface and at the rear surface, and the inner wall of the placement hole is fixedly provided with a dust screen.

7. The variable-frequency high-efficiency three-phase synchronous motor as claimed in claim 1, wherein the bottom of the equipment housing (2) is provided with a through hole matched with the receiving gear (11), the inner wall of the through hole is rotatably connected with the receiving gear (11), and the bottom of the equipment box (13) is provided with a connecting hole matched with the through hole.

8. The variable-frequency high-efficiency three-phase synchronous motor according to claim 1, wherein the top of the inner wall of the equipment box (13) is provided with a partition plate at both sides near the middle position, and the left side of the partition plate and the outer wall of the equipment box (13) are provided with heat dissipation holes.