CN215221846U

CN215221846U - Motor device for negative pressure fan

Info

Publication number: CN215221846U
Application number: CN202120422416.8U
Authority: CN
Inventors: 张丽刚
Original assignee: Wuxi Linghong Electronics Co ltd
Current assignee: Wuxi Linghong Electronics Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-12-17
Anticipated expiration: 2031-02-25

Abstract

The utility model discloses a negative pressure fan motor device belongs to the mechanical installation field. This motor device for negative-pressure air fan includes: the stator assembly is connected with the shell, and the rotor assembly is sleeved with the stator assembly and is positioned in the shell; the stator assembly consists of a stator bracket, an iron core coil and a bearing, wherein the bearing is arranged at the upper end of the stator bracket, and the iron core coil is arranged at the lower end of the stator bracket in a surrounding manner; the rotor assembly consists of a motor shaft, a rotor shell and a permanent magnet, wherein the motor shaft is arranged at the center of the rotor shell, and the permanent magnet is attached to the inner surface of the rotor shell; the rotor assembly is connected with the stator assembly through the embedding of the motor shaft and the bearing. The utility model discloses a negative pressure fan motor device has synthesized that external rotor electric machine heat dispersion is good, power density is big to and the advantage that internal rotor electric machine inertia is little, the leakproofness is good.

Description

Motor device for negative pressure fan

Technical Field

The utility model relates to a machinery installation field, in particular to negative-pressure air fan motor device.

Background

In the related art, the negative pressure fan permanent magnet motor has two schemes of an outer rotor motor and an inner rotor motor.

The motor shaft of the outer rotor motor is fixed, the winding is connected to the motor shaft, the shell rotates, and the permanent magnet is attached to the shell; the inner rotor motor shell is fixed, the winding is connected to the shell, the motor shaft rotates, and the permanent magnet is attached to the motor shaft.

Compared with the two schemes, the outer rotor motor has the defects of large rotational inertia and poor sealing performance due to good rotating heat dissipation performance and large power density of the shell; the inner rotor motor has the advantages of small rotational inertia, easy control and good sealing performance, and has the disadvantages of poor heat dissipation performance and low power density.

SUMMERY OF THE UTILITY MODEL

The utility model provides a negative-pressure air fan motor device for solve the above-mentioned problem that two kinds of negative-pressure air fan permanent-magnet machine designs to exist among the correlation technique. The technical scheme is as follows:

the utility model provides a negative-pressure air fan motor device, include: the stator assembly is connected with the shell, and the rotor assembly is sleeved with the stator assembly and is positioned in the shell;

the stator assembly comprises a stator support, an iron core coil and a bearing, wherein the bearing is arranged at the upper end of the stator support, and the iron core coil is arranged at the lower end of the stator support in a surrounding manner;

the rotor assembly consists of a motor shaft, a rotor shell and a permanent magnet, wherein the motor shaft is arranged at the center of the rotor shell, and the permanent magnet is attached to the inner surface of the rotor shell;

the rotor assembly is connected with the stator assembly through the embedding of the motor shaft and the bearing.

Optionally, the upper end of the stator bracket comprises a tray frame, and the lower end of the stator bracket comprises a mounting column;

the bearing is embedded from the upper part of the stator support, and the iron core coil is arranged around the outer side of the mounting column.

Optionally, a groove is formed in the outer side of the mounting column, and a protruding piece is correspondingly arranged on the inner side of the iron core coil;

and under the riveting of the groove and the bulge, the iron core coil is arranged around the outer side of the mounting column.

Optionally, the bearing is composed of a ball bearing and a needle bearing;

the needle roller bearing is embedded in the ball bearing, the needle roller bearing is used for fixing the motor shaft, and the ball bearing is fixed with the upper end of the disc frame in a buckling mode.

Optionally, the outer side of the housing is of a screw-threaded design for mating with a mounting.

Optionally, the rotor casing is provided with a mounting part, and the motor shaft is disposed at the center of the rotor casing through the mounting part, wherein the motor shaft is inserted into the mounting part.

This real novel beneficial effect that can bring:

the utility model discloses in, connect the iron core coil on special stator support as stator module, motor shaft and rotor casing are fixed together as the rotor, and the permanent magnet pastes on the rotor casing, has realized external rotor permanent-magnet machine functional design from the relation of iron core coil and permanent magnet, sees from total structural installation and the rotatory condition of motor shaft, has realized internal rotor permanent-magnet machine functional design again, therefore the utility model discloses a negative pressure fan motor device has synthesized external rotor motor heat dispersion good, power density is big to and the advantage that internal rotor motor inertia is little, the leakproofness is good.

Drawings

Fig. 1 shows a schematic structural diagram of a motor device for a negative pressure fan provided by the present invention;

fig. 2 shows a schematic structural diagram of a stator assembly provided by the present invention;

fig. 3 shows a schematic structural diagram of a rotor assembly provided by the present invention;

fig. 4 shows a schematic structural diagram of a stator bracket provided by the present invention;

fig. 5 shows a schematic structural diagram of a bearing provided by the present invention;

fig. 6 shows a schematic structural diagram of a rotor casing provided by the present invention.

Reference numerals in the drawings are illustrated:

100: a stator assembly; 101: a stator support; 102: an iron core coil;

103: a bearing; 104: a tray frame; 105: mounting a column;

106: a groove; 107: a ball bearing; 108: a needle bearing;

110: a rotor assembly; 111: a motor shaft; 112: a rotor case;

113: a permanent magnet; 120: a housing; 114: and (4) a mounting piece.

With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Example 1

Referring to fig. 1 to fig. 3, a schematic structural diagram of a motor apparatus for a negative pressure fan according to an exemplary embodiment of the present invention is shown, and a schematic structural diagram of a stator assembly and a rotor assembly.

The utility model discloses in, provide a motor device for negative pressure fan, including stator module 100, rotor subassembly 110 and shell 120, stator module 100 links to each other with shell 120, and rotor subassembly 110 cup joints with stator module 100 and is located inside shell 120.

Stator assembly 100 is composed of stator support 101, iron core coil 102 and bearing 103, wherein, bearing 103 is installed at the upper end of stator support 101, and iron core coil 102 encircles and sets up in the lower extreme of stator support 101.

The rotor assembly 110 is composed of a motor shaft 111, a rotor housing 112 and a permanent magnet 113, wherein the motor shaft 111 is disposed at the center of the rotor housing 112, and the permanent magnet 113 is attached to the inner surface of the rotor housing 112.

The rotor assembly 110 is coupled to the stator assembly 100 by insertion of the motor shaft 111 into the bearing 103.

In summary, the utility model provides a motor device for a negative pressure fan, each component of the motor device for the negative pressure fan can be detached and replaced for use, the service life of the whole device is prolonged, and the production cost is reduced; in addition, connect the iron core coil on special stator support as stator module, motor shaft and rotor casing are fixed together as the rotor, and the permanent magnet pastes on the rotor casing, has realized outer rotor permanent-magnet machine functional design from the relation of iron core coil and permanent magnet, sees from total structural installation and the rotatory condition of motor shaft, has realized inner rotor permanent-magnet machine functional design again, therefore the utility model discloses a motor device for negative-pressure air fan has synthesized that outer rotor motor heat dispersion is good, power density is big to and inner rotor motor inertia is little, the good advantage of leakproofness.

Example 2

On the basis of fig. 1 to fig. 3, please refer to fig. to, which shows a schematic structural diagram of a motor device for a negative pressure fan provided by another exemplary embodiment of the present invention, so as to further explain the structure of the motor device for a negative pressure fan in this embodiment, wherein, the present invention illustrates a schematic structural diagram of a stator bracket, which illustrates a schematic structural diagram of a bearing provided by the present invention, which illustrates a schematic structural diagram of a rotor casing provided by the present invention.

As shown, the upper end of stator bracket 101 includes a disk frame 104 and the lower end of stator bracket 101 includes a mounting post 105.

The bearing 103 is fitted from above the stator holder 101, and the core coil 102 is disposed around the outside of the mounting post 105.

Optionally, the mounting posts 105 are provided with recesses 106 on the outside and corresponding projections on the inside of the core coil 102, which are not shown in the drawings due to shielding.

Under the riveting of the groove 106 and the protrusion, the iron core coil 102 is disposed around the outside of the mounting post 105.

Alternatively, the bearing 103 is composed of a ball bearing 107 and a needle bearing 108.

The needle roller bearing 108 is embedded in the ball bearing 107, the needle roller bearing 108 is used for fixing the motor shaft 111, and the ball bearing 107 is fixed with the upper end of the tray 104 in a buckling mode.

Optionally, the outside of the housing 120 is of a screw-type design, which is designed to match the mounting.

In one possible embodiment, the mount includes a motor and a controller. Considering market replaceability, the threaded design at the housing 120 retains the traditional motor housing design, and is beneficial to replacing and adapting with the traditional motor.

Optionally, the rotor housing 112 is provided with a mounting part 114, and the motor shaft 111 is disposed at the center of the rotor housing 112 through the mounting part 114, wherein the motor shaft 111 is inserted into the mounting part 114.

In this application embodiment, through the riveting of locating hole and setting element, realize that the subassembly after the angle adjustment is fixed, further improve the fastness after the erection equipment accomplishes the installation.

In the embodiment of the application, the mounting column is provided with the groove which is tightly matched with the protruding part of the iron core coil, so that the mounting column and the protruding part can be effectively fixed together to prevent the iron core coil from sliding.

In the embodiment of the application, the design of the traditional motor shell is reserved in the threaded design of the shell, the advantages of small size and low cost of the outer rotor permanent magnet motor are taken into consideration, and the structure and the installation advantages of replacing the traditional motor are also kept.

The above description is only an optional embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a motor device for negative-pressure air fan, its characterized in that, motor device for negative-pressure air fan includes: the stator assembly (100), the rotor assembly (110) and the outer shell (120), wherein the stator assembly (100) is connected with the outer shell (120), and the rotor assembly (110) is sleeved with the stator assembly (100) and is positioned inside the outer shell (120);

the stator assembly (100) consists of a stator support (101), an iron core coil (102) and a bearing (103), wherein the bearing (103) is installed at the upper end of the stator support (101), and the iron core coil (102) is arranged at the lower end of the stator support (101) in a surrounding manner;

the rotor assembly (110) consists of a motor shaft (111), a rotor casing (112) and a permanent magnet (113), wherein the motor shaft (111) is arranged at the center of the rotor casing (112), and the permanent magnet (113) is attached to the inner surface of the rotor casing (112);

the rotor assembly (110) is connected with the stator assembly (100) through embedding of the motor shaft (111) and the bearing (103).

2. The motor apparatus for a negative pressure fan according to claim 1, wherein the upper end of the stator bracket (101) comprises a tray frame (104), and the lower end of the stator bracket (101) comprises a mounting post (105);

the bearing (103) is embedded from the upper part of the stator support (101), and the iron core coil (102) is arranged on the outer side of the mounting column (105) in a surrounding mode.

3. The motor device for the negative pressure fan is characterized in that a groove (106) is arranged on the outer side of the mounting column (105), and a protruding piece is correspondingly arranged on the inner side of the iron core coil (102);

under the riveting of the groove (106) and the protruding piece, the iron core coil (102) is arranged on the outer side of the mounting column (105) in a surrounding mode.

4. The motor device for negative pressure fan according to claim 2, wherein the bearing (103) is composed of a ball bearing (107) and a needle bearing (108);

the needle roller bearing (108) is embedded in the ball bearing (107), the needle roller bearing (108) is used for fixing the motor shaft (111), and the ball bearing (107) is fixed with the upper end of the tray frame (104) in a buckling mode.

5. The motor arrangement for a negative pressure fan according to any of claims 1 to 4, characterized in that the outer side of the housing (120) is of a screw-thread design, which is designed to match a mounting.

6. The motor apparatus for negative pressure blower according to any one of claims 1 to 4, wherein the rotor case (112) is provided with a mounting member (114), and the motor shaft (111) is provided at the center of the rotor case (112) through the mounting member (114), wherein the motor shaft (111) is inserted into the mounting member (114).