CN212875553U

CN212875553U - Permanent magnet motor with frequency converter for pump

Info

Publication number: CN212875553U
Application number: CN202022194573.6U
Authority: CN
Inventors: 沈云荣; 邱秀康; 周神文
Original assignee: Taizhou Paloton Mechanical And Electrical Co ltd
Current assignee: Taizhou Paloton Mechanical And Electrical Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-04-02
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a permanent-magnet machine for pump with converter belongs to motor technical field, and aim at overcomes the current not good defect of motor radiating effect for pump. The pump motor includes motor casing, control box and fixes the fan housing on the motor casing, one side of control box towards the motor casing has the fin, its characterized in that, have the orientation on the fan housing the position of control box has the opening. The utility model provides a permanent-magnet machine for pump with converter, fan housing set up the opening and are convenient for the fan blade and blow the air current to the control box more smoothly, improve the airflow of fin on the control box, improve the radiating effect.

Description

Permanent magnet motor with frequency converter for pump

Technical Field

The utility model belongs to the technical field of the motor, a permanent-magnet machine for pump with converter is related to.

Background

A current motor for pump includes motor casing and control box, installs motor body in the motor casing, and the one end of motor casing sets up the fan housing, sets up the fan blade in the fan housing, sets up the converter in the control box, and the control box sets up the fin towards the one side of motor casing, sets up the ventilation hole on the fan housing towards the control box, and the fan blade during operation can blow the air current to the fin through the ventilation hole to improve the radiating effect of fin. However, the fan blade with the structure blows less air through the vent holes, and the heat dissipation effect is poor.

Disclosure of Invention

The utility model discloses the problem to prior art existence provides a pump permanent-magnet machine with converter, and aim at overcomes the current not good defect of motor radiating effect for the pump.

The utility model discloses a realize like this:

the utility model provides a permanent-magnet machine for pump with converter, includes motor casing, control box and fixes the fan housing on the motor casing, set up the fan blade in the fan housing, the control box has the fin towards one side of motor casing, its characterized in that, have the orientation on the fan housing the position of control box has the opening. The fan housing is provided with the opening, so that the fan blades can more smoothly blow airflow to the control box, the airflow of the radiating fins on the control box is improved, and the radiating effect is improved.

Preferably, the control box is provided with a heat dissipation groove, the heat dissipation fins are located in the heat dissipation groove, the fan housing is embedded into the heat dissipation groove, and the heat dissipation fins are partially embedded into the fan housing from the opening. The fan cover is embedded into the heat dissipation groove, the side wall of the heat dissipation groove can restrain the fan cover, the possibility of deformation of the fan cover is reduced, the heat dissipation fins are partially embedded into the fan cover and are closer to the fan blades, air flow formed by the fan blades can blow more air to the heat dissipation fins, and the heat dissipation effect is improved.

Preferably, the control box is provided with a guide surface, and the guide surface is arranged corresponding to the fan blade. The fan blade forms airflow to blow to the control box, and the airflow can flow towards the port of the heat dissipation groove along the guide surface, so that the heat dissipation effect is improved.

Preferably, the tip of motor casing can be dismantled and set up the front end housing, set up motor body in the motor casing, motor body's motor shaft passes the front end housing. Thus, different front end covers can be replaced to meet the requirements of different power sections.

Preferably, the bottom of the motor casing is provided with a spare fixing hole. After the bottom plate is installed in the standby fixing hole, the motor can be used as a horizontal motor, and the use flexibility of the motor is improved.

Preferably, the motor casing is provided with a fixed foot, and the control box is provided with a positioning structure for positioning the fixed foot. Location structure can fix a position the position of motor casing fast, improves assembly efficiency.

Preferably, the positioning structure comprises a plurality of ribs, and the fixing feet are embedded between the ribs. The convex rib has simple structure, is not easy to bend and has stable positioning.

Preferably, the control box comprises a box body and a box cover, the radiating fins are located on the box body, a first fixing column and a second fixing column are arranged in the box body, the height of the first fixing column is smaller than that of the second fixing column, and a frequency converter is arranged in the control box and fixed on the first fixing column or the second fixing column. The control box is convenient to install the three-phase motor frequency converter or the single-phase motor frequency converter, the adaptability of the control box is improved, the inventory types are reduced, and the inventory cost is reduced.

Preferably, the inner wall of the box body is provided with a heat dissipation boss, and a heating element of the frequency converter abuts against the heat dissipation boss. Heating element can give the fin with the heat quick conduction like this, improves the radiating effect, and when heating element supported on the box, it was inconsistent with the box to avoid other components.

Preferably, one side of the control box, which faces the motor shell, is provided with a wire passing hole, a guide curved surface is arranged at the wire passing hole, and the guide curved surface is used for guiding a wire connected with the motor body to a wiring end on the control box. The threading of wire is convenient for, improves the assembly efficiency of motor.

The utility model provides a permanent-magnet machine for pump with converter, fan housing set up the opening and are convenient for the fan blade and blow the air current to the control box more smoothly, improve the airflow of fin on the control box, improve the radiating effect.

Drawings

Fig. 1 is a schematic view of a first angular configuration of an electrical machine;

FIG. 2 is a second angular configuration of the motor;

FIG. 3 is a schematic cross-sectional view of the motor;

FIG. 4 is an exploded view of the motor;

FIG. 5 is a schematic structural view of the motor before the control box is installed;

FIG. 6 is a schematic structural view of a control box;

FIG. 7 is an enlarged view of portion A of FIG. 6;

fig. 8 is a schematic structural view of the case.

Reference is made to the accompanying drawings in which: 100. a motor housing; 110. a motor body; 111. a motor shaft; 120. a front end cover; 130. a spare fixing hole; 200. a control box; 210. a heat sink; 220. a heat sink; 230. a guide surface; 240. a rib is protruded; 250. a box body; 251. a first fixed column; 252. a second fixed column; 253. a heat dissipation boss; 260. a box cover; 270. a wire passing hole; 271. a guide curved surface; 300. a fan housing; 310. a fan blade; 320. and (4) opening.

Detailed Description

The following detailed description is made of specific embodiments of the present invention with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and master. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The embodiment provides a pump motor, as shown in fig. 1 to 5, which includes a motor casing 100, a control box 200, and a fan housing 300 fixed on the motor casing 100, wherein a cooling fin 210 is disposed on one side of the control box 200 facing the motor casing 100, a motor body 110 is installed in the motor casing 100, the motor body 110 includes a stator and a rotor, a frequency converter is installed in the control box 200 for controlling a rotation speed of the motor, the motor body 110 is connected with a fan blade 310, the motor body 110 drives the fan blade 310 to rotate when rotating, and the fan housing 300 covers the fan blade 310.

The hood 300 has an opening 320 at a portion facing the control box 200. The opening 320 enables the inner cavity of the fan housing 300 and the control box 200 to be closer in position relation, so that the fan blades 310 can blow airflow to the control box 200 more smoothly, airflow of the cooling fins 210 on the control box 200 is improved, and the cooling effect is improved.

The control box 200 is provided with the heat dissipation groove 220, the heat dissipation fins 210 are located in the heat dissipation groove 220, the fan housing 300 is embedded in the heat dissipation groove 220, after the fan housing 300 is provided with the opening 320, the strength of the fan housing 300 is obviously reduced, the fan housing 300 is embedded in the heat dissipation groove 220, the side wall of the heat dissipation groove 220 can form constraint on the fan housing 300, and the possibility that the fan housing 300 deforms is reduced.

The heat dissipation fins 210 are partially embedded into the fan housing 300 from the openings 320, the heat dissipation fins 210 are closer to the fan blades 310, the airflow formed by the fan blades 310 can be blown more toward the heat dissipation fins 210, the airflow formed by the fan blades 310 in the fan housing 300 has a greater influence on the heat dissipation fins 210, and the heat dissipation effect is improved.

As shown in fig. 3 and 6, the control box 200 is provided with a guide surface 230, and the guide surface 230 is disposed corresponding to the fan blade 310. As further described below with an angle shown in fig. 3, a surface of the control box 200 facing the motor casing 100 is divided into an upper section and a lower section, the upper section protrudes toward the fan housing 300 relative to the lower section, so that a step-like structure is formed between the upper section and the lower section, the upper section and the lower section are transited by the guide surface 230, the guide surface 230 may be an arc surface or a straight inclined surface, when the fan blade 310 blows toward the guide surface 230, a flow direction of the air flow is changed downward along the guide surface 230, so that the heat-dissipating air flow flows to a port of the heat-dissipating slot 220 along an extending direction of the heat-dissipating fin 210, and the heat of the heat-dissipating fin 210 is taken away.

As shown in fig. 3 to 4, a front cover 120 is detachably disposed at an end of the motor housing 100 by a screw, a motor body 110 is disposed in the motor housing 100, and a motor shaft 111 of the motor body 110 penetrates through the front cover 120. This allows different front end covers 120 to be replaced to accommodate different power segment requirements. When the motor is specifically assembled on the pump, the pump body is fixed on the motor casing 100, the motor shaft 111 is in transmission connection with the impeller of the pump, for example, the motor shaft 111 is connected with the pump shaft through a coupling, the impeller is installed on the pump shaft, and the motor body 110 drives the impeller to rotate to realize the function of the pump.

As shown in fig. 4, the bottom of the motor case 100 is provided with a spare fixing hole 130. After the bottom plate is installed in the spare fixing hole 130, the motor can be used as a horizontal motor, and the flexibility of the motor is improved.

As shown in fig. 4, the motor casing 100 has fixing legs thereon, and the control box 200 is provided with a positioning structure for positioning the fixing legs. The positioning structure can quickly position the motor casing 100, and the assembly efficiency is improved. The locating structure includes a plurality of ribs 240 between which the securing feet are embedded. The convex rib 240 has simple structure, is not easy to bend and has stable positioning. In this embodiment, one side of motor casing 100 sets up two fixed feet, and it sets up three protruding muscle 240 to correspond two fixed feet, and two adjacent protruding muscle 240 retrains a fixed foot, and motor casing 100 both sides all set up two fixed feet, and fixed foot is four altogether, and protruding muscle 240 is six altogether.

As shown in fig. 6 and 8, the control box 200 includes a box body 250 and a box cover 260, the heat sink 210 is located on the box body 250, a first fixing column 251 and a second fixing column 252 are disposed in the box body 250, the height of the first fixing column 251 is smaller than that of the second fixing column 252, and a frequency converter is disposed in the control box 200 and fixed on the first fixing column 251 or the second fixing column 252. Thus, the control box 200 can be conveniently provided with a three-phase motor frequency converter or a single-phase motor frequency converter, the adaptability of the control box 200 is improved, the inventory types are reduced, and the inventory cost is reduced.

The inner wall of the box 250 is provided with a heat dissipation boss 253, and the heating element abuts against the heat dissipation boss 253. The heating element is a component with large heat generation quantity on the frequency converter, and the heating element comprises an IPM module and a rectifier bridge.

As shown in fig. 7-8, a wire passing hole 270 is formed on one side of the control box 200 facing the motor casing 100, a guiding curved surface 271 is formed at the wire passing hole 270, and the guiding curved surface 271 guides a wire connected to the motor body 110 to a terminal on the control box 200.

Claims

1. The utility model provides a permanent-magnet machine for pump with converter, includes motor casing (100), control box (200) and fixes fan housing (300) on motor casing (100), set up the fan blade in the fan housing, control box (200) have fin (210) towards one side of motor casing (100), its characterized in that, have the orientation on fan housing (300) the position of control box (200) has opening (320).

2. The permanent magnet motor with the frequency converter for the pump according to claim 1, wherein a heat sink (220) is disposed on the control box (200), the heat sink (210) is located in the heat sink (220), the fan housing (300) is embedded in the heat sink (220), and the heat sink (210) is partially embedded in the fan housing (300) from the opening (320).

3. The permanent magnet motor with the frequency converter for the pump according to claim 1, wherein a guide surface (230) is arranged on the control box (200), and the guide surface (230) is arranged corresponding to the fan blade (310).

4. The permanent magnet motor with the frequency converter for the pump according to claim 1, wherein a front end cover (120) is detachably disposed at an end of the motor housing (100), a motor body (110) is disposed in the motor housing (100), and a motor shaft (111) of the motor body (110) penetrates through the front end cover (120).

5. The permanent magnet motor with the frequency converter for the pump according to claim 1, wherein the bottom of the motor casing (100) is provided with a spare fixing hole (130).

6. The permanent magnet motor with the frequency converter for the pump according to claim 1, wherein the motor casing (100) is provided with a fixing foot, and the control box (200) is provided with a positioning structure for positioning the fixing foot.

7. The permanent magnet motor for pump with inverter of claim 6, characterized in that the positioning structure comprises a plurality of ribs (240), and the fixing feet are embedded between the ribs (240).

8. The permanent magnet motor with the frequency converter for the pump according to claim 1, wherein the control box (200) comprises a box body (250) and a box cover (260), the heat sink (210) is located on the box body (250), a first fixing column (251) and a second fixing column (252) are arranged in the box body (250), the height of the first fixing column (251) is smaller than that of the second fixing column (252), and the frequency converter is arranged in the control box (200) and fixed on the first fixing column (251) or the second fixing column (252).

9. The pump permanent magnet motor with the frequency converter is characterized in that a heat dissipation boss (253) is arranged on the inner wall of the box body (250), and a heating element of the frequency converter abuts against the heat dissipation boss (253).

10. The permanent magnet motor with the frequency converter for the pump according to claim 1, wherein a wire passing hole (270) is formed in one side of the control box (200) facing the motor casing (100), a guiding curved surface (271) is formed at the wire passing hole (270), and a wire connected with the motor body (110) is guided to a terminal on the control box (200) by the guiding curved surface (271).