CN115580070A

CN115580070A - Air guide part of variable frequency motor

Info

Publication number: CN115580070A
Application number: CN202211318624.9A
Authority: CN
Inventors: 李建华; 李凯; 谢群
Original assignee: Wilo Changzhou Pump Co ltd
Current assignee: Wilo Changzhou Pump Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-01-06

Abstract

The invention relates to the technical field of variable frequency motor heat dissipation, in particular to a wind guide part of a variable frequency motor, which solves the defect that the sealing performance of a wind guide channel cannot be ensured by the heat dissipation of a wind path in the conventional variable frequency motor.

Description

Air guide part of variable frequency motor

Technical Field

The invention relates to the technical field of variable frequency motor heat dissipation, in particular to an air guide component of a variable frequency motor.

Background

The existing variable frequency motor usually adopts a structural mode that the motor is matched with a frequency converter for use so as to realize smooth stepless speed regulation in a wider range, and the motor is an ideal driving motor which meets the requirement of speed regulation equipment in explosive gas environments of factories, coal mines and the like.

Because of the frequency conversion requirement, under the condition of different rotating speeds, the motor adopts the fan heat radiation mode of the outer air path, the wind pressure and the wind volume of the outer fan can not meet the self heat radiation requirement of the frequency conversion motor, and the sealing property of the air guide channel can not be ensured under the condition that the inner air path does not work;

therefore, the ventilation and heat dissipation performance of the motor is guaranteed, and the dust invasion of the air duct is reduced.

Disclosure of Invention

The invention aims to solve the defect that the sealing performance of an air guide channel cannot be ensured by the heat dissipation of an air path in the existing variable frequency motor, and provides an air guide component of the variable frequency motor.

In order to achieve the purpose, the invention adopts the following technical scheme:

the air guide component of the variable frequency motor comprises a base, wherein the inside of the base is connected with an interval adjusting rod through a bearing, connecting blocks are sleeved outside the two ends of the interval adjusting rod, two vertically arranged vertical frames are fixed through connecting block bolts respectively, clamping rods and clamping plates are sequentially arranged on the inner sides of the tops of the vertical frames, a motor body is clamped and fixed through the base and the clamping plates, and a front air guide cover and a rear air guide cover are further arranged at the two ends of the motor body respectively;

switch air guide assemblies are mounted inside the front air guide cover and the rear air guide cover, fan blades are fixedly sleeved inside the rear air guide cover, air guide grooves are formed in the sides, close to the motor body, of the front air guide cover and the rear air guide cover, and a first filter screen and a second filter screen are arranged at the end parts of the other ends of the front air guide cover and the rear air guide cover respectively;

switch wind-guiding subassembly is including cup jointing the carousel in motor organism spindle outside, and the outside evenly distributed of carousel is provided with two parallel arrangement's baffle, two the inside slidable mounting of baffle has the support to there is the deep bead through leg joint, and reset spring is still installed to the inside of baffle.

Preferably, the surfaces of the two ends of the distance adjusting rod are respectively provided with a forward thread and a reverse thread, and the inner walls of the connecting blocks at the two ends of the distance adjusting rod are respectively provided with a thread groove meshed with the forward thread and the reverse thread.

Preferably, the surface of the clamping rod is provided with threads, the inner wall of the vertical frame is provided with a thread groove corresponding to the threads on the surface of the vertical frame, and the clamping rod is connected with the clamping plate through a bearing.

Preferably, the motor body is positioned outside a crankshaft inside the rear wind scooper and is further sleeved with a scraping and brushing sheet, and the scraping and brushing sheet is abutted to the inner wall of the second filter screen.

Preferably, the support is the E font, and the both ends of support all weld the dog, reset spring's both ends are contradicted with the tip inboard of dog and baffle respectively.

Preferably, the surface of the wind deflector is glued with a sealing gasket, and the sealing gasket is abutted against the wind guide groove.

Preferably, one side of each guide plate opposite to the corresponding guide plate is provided with a guide groove, and two sides of the wind shield are provided with guide blocks corresponding to the guide grooves.

Compared with the prior art, the invention has the beneficial effects that:

1. when the shaft of the variable frequency motor stops rotating, a wind shield of the switch wind guide assembly is tightly attached to the wind guide groove under the action of a return spring, so that external air cannot enter the motor body to protect the inside of the motor body;

2. in the installation, after arranging inverter motor in the base top, rotate the interval adjustment pole and drive two sets of grudging posts spacing of adjusting and arrange motor organism both sides in after, rotate the clamping bar and drive splint and sink, and then press from both sides the top of tight fixed motor organism, prevent that the inverter motor flabellum from rotating the resonance that brings, improve the radiating effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an air guide part of a variable frequency motor according to the present invention;

fig. 2 is a schematic view of a top-down sectional structure of an air guiding component of the inverter motor according to the present invention;

fig. 3 is a schematic structural view of a switch air guide assembly of an air guide part of the variable frequency motor according to the present invention;

fig. 4 is a schematic partial sectional view of a portion a in fig. 3 of an air guiding component of an inverter motor according to the present invention.

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

1. a base; 2. a spacing adjustment rod; 3. connecting blocks; 4. erecting a frame; 5. a clamping bar; 6. a splint; 7. a motor body; 8. a front air guide cover; 9. a rear wind scooper; 10. opening and closing the air guide assembly; 11. a fan blade; 12. a scraping and brushing sheet; 13. a first filter screen; 14. a second filter screen; 15. a wind guide groove;

101. a turntable; 102. a guide plate; 103. a support; 104. a return spring; 105. a wind deflector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a first embodiment of the invention provides a wind guide component of a variable frequency motor, which comprises a base 1, wherein the inside of the base 1 is connected with an interval adjusting rod 2 through a bearing, the outsides of two ends of the interval adjusting rod 2 are respectively sleeved with a connecting block 3, two vertically arranged vertical frames 4 are respectively fixed through the connecting blocks 3 by bolts, the inner sides of the tops of the vertical frames 4 are sequentially provided with a clamping rod 5 and a clamping plate 6, a motor body 7 is fixedly clamped through the base 1 and the clamping plate 6, and two ends of the motor body 7 are respectively provided with a front wind guide cover 8 and a rear wind guide cover 9;

switch air guide assemblies 10 are respectively installed inside the front air guide cover 8 and the rear air guide cover 9, fan blades 11 are fixedly sleeved inside the rear air guide cover 9, air guide grooves 15 are respectively formed in the sides, close to the motor body 7, of the front air guide cover 8 and the rear air guide cover 9, and a first filter screen 13 and a second filter screen 14 are respectively arranged at the end parts of the other ends of the front air guide cover 8 and the rear air guide cover 9;

the switch air guide assembly 10 comprises a rotary table 101 sleeved outside a crankshaft of the motor body 7, two guide plates 102 arranged in parallel are uniformly distributed outside the rotary table 101, a support 103 is slidably mounted inside the two guide plates 102, a wind shield 105 is connected with the support 103, and a return spring 104 is further mounted inside the guide plates 102;

it is worth noting that:

1. the surfaces of two ends of the spacing adjusting rod 2 are respectively provided with a forward thread and a reverse thread, and the inner walls of the connecting blocks 3 at two ends of the spacing adjusting rod are respectively provided with a thread groove meshed with the forward thread and the reverse thread;

2. the surface of the clamping rod 5 is provided with threads, the inner wall of the vertical frame 4 is provided with a thread groove corresponding to the threads on the surface, and the clamping rod 5 is connected with the clamping plate 6 through a bearing;

3. the motor body 7 is also sleeved with a scraping and brushing sheet 12 outside a machine shaft inside the rear wind scooper 9, and the scraping and brushing sheet 12 is abutted against the inner wall of the second filter screen 14;

4. support 103 is the E font, and all welds at the both ends of support 103 has the dog, and reset spring 104's both ends are contradicted with the tip inboard of dog and baffle 102 respectively, and the surface gluing of deep bead 105 has sealed the pad, and it is contradicted through sealed pad and wind-guiding groove 15, and the guide slot has been seted up to two opposite one sides of baffle 102, and the both sides of deep bead 105 are provided with the guide block that corresponds with the guide slot.

The working principle is as follows: in the using process, when the shaft of the variable frequency motor is in a stop state, the wind deflector 105 of the switch wind deflector assembly 10 is tightly attached to the wind guide groove 15 under the action of the return spring 104, so that the external air cannot enter the motor body 7 to protect the inside of the motor body, when the shaft of the variable frequency motor rotates, the wind deflector 105 mounted on the support 103 is driven to be thrown outwards along with centrifugal force according to the rotating speed of the shaft of the variable frequency motor, the degree of adjusting the wind deflector 105 to open the wind guide groove 15 is further reached, at the moment, the shaft drives the fan blades 11 to rotate, and then the external wind is guided to enter the motor body 7 through the wind guide groove 15 of the rear wind guide cover 9 and is discharged from the wind guide groove 15 of the front wind guide cover 8, so that the function of dissipating heat of a wind path in the variable frequency motor is realized;

in the installation, arrange inverter motor in 1 top of base after, rotate interval adjustment pole 2 and drive two sets of grudging posts 4 spacing of adjusting and arrange in 7 both sides of motor organism in, rotate clamping bar 5 and drive splint 6 and sink, and then press from both sides tight fixed motor organism 7's top, prevent inverter motor flabellum 11 and rotate the resonance that brings, improve the radiating effect.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations. In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Claims

1. The air guide component of the variable frequency motor comprises a base (1) and is characterized in that an interval adjusting rod (2) is connected to the inside of the base (1) through a bearing, connecting blocks (3) are sleeved on the outer portions of two ends of the interval adjusting rod (2), two vertically arranged vertical frames (4) are fixed through the connecting blocks (3) through bolts respectively, clamping rods (5) and clamping plates (6) are sequentially installed on the inner sides of the tops of the vertical frames (4), a motor body (7) is clamped and fixed through the base (1) and the clamping plates (6), and a front air guide cover (8) and a rear air guide cover (9) are further installed at two ends of the motor body (7) respectively;

switch air guide assemblies (10) are respectively installed inside the front air guide cover (8) and the rear air guide cover (9), fan blades (11) are fixedly sleeved inside the rear air guide cover (9), air guide grooves (15) are respectively formed in one sides, close to the motor body (7), of the front air guide cover (8) and the rear air guide cover (9), and a first filter screen (13) and a second filter screen (14) are respectively arranged at the end parts of the other ends of the front air guide cover (8) and the rear air guide cover (9);

switch air guide component (10) is including cup jointing carousel (101) in motor organism (7) spindle outside, and the outside evenly distributed of carousel (101) is provided with two parallel arrangement's baffle (102), two baffle (102) inside slidable mounting has support (103) to be connected with deep bead (105) through support (103), reset spring (104) are still installed to the inside of baffle (102).

2. The wind guide part of the variable frequency motor according to claim 1, wherein the surfaces of the two ends of the spacing rod (2) are respectively provided with a forward thread and a reverse thread, and the inner walls of the connecting blocks (3) at the two ends are respectively provided with a thread groove engaged with the forward thread and the reverse thread.

3. The wind guide part of the variable frequency motor according to claim 1, wherein the surface of the clamping rod (5) is provided with threads, the inner wall of the stand (4) is provided with thread grooves corresponding to the threads on the surface, and the clamping rod (5) is connected with the clamping plate (6) through a bearing.

4. The wind guide part of the variable frequency motor according to claim 1, wherein a scraping and brushing sheet (12) is further sleeved outside a crankshaft of the motor body (7) positioned inside the rear wind guide cover (9), and the scraping and brushing sheet (12) is abutted against the inner wall of the second filter screen (14).

5. The wind guide part of the variable frequency motor according to claim 1, wherein the bracket (103) is E-shaped, stoppers are welded to both ends of the bracket (103), and both ends of the return spring (104) respectively abut against the stoppers and the inner side of the end of the guide plate (102).

6. The wind guide component of the inverter motor according to claim 1, wherein a sealing gasket is adhered to the surface of the wind deflector (105), and the sealing gasket is abutted against the wind guide groove (15).

7. The wind guide part of the variable frequency motor according to claim 6, wherein a guide groove is formed on one side of the two guide plates (102) opposite to each other, and guide blocks corresponding to the guide groove are arranged on two sides of the wind shield (105).