AC motor with compact structure

Abstract

The utility model discloses an alternating current motor with a compact structure, which relates to the technical field of motors and comprises a shell. A stator is fixed on the inner wall of the shell through a bolt, the stator is sleeved on the outer side of a rotor, then the rotor is connected on a driving shaft in a matching manner, and the driving shaft is connected with a mounted bearing mounted on the front shell in a matching manner; the front shell is fixed to the shell through bolts, and a rear cover is arranged on the side, away from the front shell, of the shell. According to the utility model, the housing and the front housing are arranged in a flat shape, and the stator is sleeved on the outer side of the rotor, so that the length can be reduced, the structure is more compact, the occupied area during use is reduced, and the front housing, the housing and the rear cover are an integral external protection structure.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of motors, in particular to an AC motor with a compact structure. Background Art

[0002] An AC motor is a machine used to convert mechanical energy into alternating current (AC) electrical energy. Due to the rapid development of AC power systems, AC motors have become the most commonly used motors. Compared to DC motors, AC motors lack a commutator (see Commutation of DC Motors). This makes them simpler, easier to manufacture, and more robust, making them easier to manufacture at high speeds, high voltages, high currents, and large capacities.

[0003] Traditional motors are usually barrel-mounted. Although the stator is on the outside of the rotor, the stator and rotor are arranged in non-overlapping positions and are no longer together, which increases the length of the motor casing and makes the positional relationship non-compact. To this end, we provide a compact AC motor. By arranging the front shell and the casing to be flat in a disc shape, the stator is directly sleeved on the outside of the rotor, thereby reducing the length and volume, making the structure more compact and reducing the installation space, thereby effectively compensating for the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide an AC motor with a compact structure to solve the problems raised in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A compact AC motor includes a housing; a stator is fixed to the inner wall of the housing by bolts, and the stator is sleeved on the outer side of the rotor; the rotor is cooperatively connected to the drive shaft, and the drive shaft is cooperatively connected to the seated bearing installed on the front housing; the front housing is fixed to the housing by bolts, and a rear cover is provided on the side of the housing away from the front housing.

[0007] As a further technical solution of the present invention, the end of the drive shaft close to the rear cover is cooperatively connected to a heat dissipation fan, and the rear cover is provided with a slot for facilitating air blowing by the heat dissipation fan, and the rear cover is fixed to the housing by bolts.

[0008] As a further technical solution of the present invention, a plurality of air inlet grooves are provided on the shell and the front shell, and the plurality of air inlet grooves are arranged in a circular array along the central axis of the shell.

[0009] As a further technical solution of the present invention, a plurality of fixing ears are welded to the outer side of the front shell, and the fixing ears are fixed to the mounting carrier by bolts.

[0010] As a further technical solution of the present invention, a cable box is installed on the outer side of the shell.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the present invention, the housing and the front housing are arranged in a flat shape, and the stator is sleeved on the outside of the rotor, thereby reducing the length and making the structure more compact, thereby reducing the floor space when in use. The front housing, the housing and the rear cover are an integral external protective structure;

[0013] The utility model can drive the cooling fan to rotate when the driving shaft rotates, thereby driving the gas flow inside the shell, which can have a cooling effect on the temperature inside the motor;

[0014] In the present invention, the air inlet grooves on the shell and the front shell can facilitate the entry of gas to ensure the reduction of temperature. The fixing ears are convenient for the installation and fixation of the whole. The wire box is embedded in the inner side, thereby reducing the volume and making the structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0016] Figure 2 This utility model Figure 1 Schematic diagram from another perspective.

[0017] Figure 3 This utility model Figure 1 Right view of .

[0018] Figure 4 This utility model Figure 3 Cross-sectional view at AA.

[0019] In the figure: 1-front shell, 2-fixing ear, 3-shell, 4-rear cover, 5-air intake slot, 6-drive shaft, 7-stator, 8-rotor, 9-cooling fan, 10-junction box. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4In an embodiment of the present invention, a compact AC motor includes a housing 3; a stator 7 is fixed to the inner wall of the housing 3 by bolts, and the stator 7 is sleeved on the outer side of the rotor 8. Secondly, the rotor 8 is connected to the drive shaft 6, and the drive shaft 6 is connected to the seat bearing installed on the front housing 1; the front housing 1 is fixed to the housing 3 by bolts, and a rear cover 4 is provided on the side of the housing 3 away from the front housing 1.

[0022] By adopting the above technical solution, the shell 3 and the front shell 1 are arranged in a flat shape, and the stator 7 is sleeved on the outside of the rotor 8, so that the length can be reduced and the structure is more compact, thereby reducing the floor space during use. The front shell 1, the shell 3 and the rear cover 4 are an integral external protective structure.

[0023] In this embodiment, the end of the drive shaft 6 close to the rear cover 4 is connected to the heat dissipation fan 9, and the rear cover 4 is provided with a slot for the heat dissipation fan 9 to blow air, and the rear cover 4 is fixed to the housing 3 by bolts.

[0024] By adopting the above technical solution, when the driving shaft 6 rotates, it can drive the heat dissipation fan 9 to rotate, thereby driving the gas flow inside the shell 3, which can have a cooling effect on the temperature inside the motor.

[0025] In this embodiment, a plurality of air inlet slots 5 are provided on both the shell 3 and the front shell 1 , and the plurality of air inlet slots 5 are arranged in a circular array along the central axis of the shell 3 .

[0026] Furthermore, a plurality of fixing ears 2 are welded to the outer side of the front shell 1 , and the fixing ears 2 are fixed to the mounting carrier by bolts.

[0027] Furthermore, a cable box 10 is installed on the outer side of the shell 3 .

[0028] By adopting the above technical solution, the air inlet grooves 5 on the shell 3 and the front shell 1 can facilitate the entry of gas to ensure the reduction of temperature. The fixing ears 2 facilitate the overall installation and fixation. The wire box 10 is embedded in the inner side, which can also reduce the volume and make the structure more compact.

[0029] The working principle of the present invention is as follows: when in use, the shell 3 and the front shell 1 are arranged in a flat shape, and the stator 7 is sleeved on the outside of the rotor 8, so as to reduce the length and make its structure more compact, thereby reducing the floor space when in use. The front shell 1, the shell 3 and the rear cover 4 are an integral external protection structure; when the drive shaft 6 rotates, it can drive the heat dissipation fan 9 to rotate, thereby driving the gas flow inside the shell 3, which can have a cooling effect on the temperature inside the motor; the air inlet groove 5 on the shell 3 and the front shell 1 can facilitate the entry of gas to ensure the reduction of temperature, the fixing ear 2 facilitates the overall installation and fixation, and the wire box 10 is embedded in the inside, which can also reduce the volume and make the structure more compact.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A compact AC motor, characterized by: The invention comprises a housing (3); a stator (7) is fixed to the inner wall of the housing (3) by bolts, and the stator (7) is sleeved on the outer side of the rotor (8); the rotor (8) is connected to the drive shaft (6), and the drive shaft (6) is connected to the seat bearing installed on the front housing (1); the front housing (1) is fixed to the housing (3) by bolts, and a rear cover (4) is provided on the side of the housing (3) away from the front housing (1).

2. A compact AC motor according to claim 1, characterized in that: The end of the drive shaft (6) close to the rear cover (4) is cooperatively connected to a heat dissipation fan (9), and the rear cover (4) is provided with a slot for the heat dissipation fan (9) to blow air, and the rear cover (4) is fixed to the housing (3) by bolts.

3. The compact AC motor according to claim 2, characterized in that: The shell (3) and the front shell (1) are both provided with a plurality of air inlet slots (5), and the plurality of air inlet slots (5) are arranged in a circular array along the central axis of the shell (3).

4. The compact AC motor according to claim 3, characterized in that: A plurality of fixing ears (2) are welded to the outer side of the front shell (1), and the fixing ears (2) are fixed to the mounting carrier by means of bolts.

5. The compact AC motor according to claim 1, characterized in that: The outer side of the housing (3) is fitted with a cable box (10).

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