External rotor motor

Abstract

The utility model discloses an external rotor motor, which belongs to the technical field of motors, and is characterized in that the external rotor motor comprises a plastic package body, a stator winding, a rotor, a rotating shaft and a mounting base, the stator winding is arranged in the plastic package body, the rotor is sleeved on the outer side of the stator winding, the rotating shaft is rotatably arranged on the plastic package body and is connected with the rotor, and the mounting base is arranged on the plastic package body. At least two positioning grooves are formed in the bottom of the plastic package body, at least two positioning blocks are arranged on the mounting base, the positioning blocks can be inserted into the positioning grooves, the positioning blocks are detachably connected with the plastic package body, the mounting structure is inserted into the positioning grooves through the positioning blocks, connection of the positioning blocks and the plastic package body is completed, namely, mounting of the outer rotor motor is completed, operation is simple, and the mounting efficiency is high. Installation is convenient, the overall structure is compact, the size of the outer rotor motor is reduced, and the occupied space is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to an outer rotor motor. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. It converts electrical energy into mechanical energy through electromagnetic action. Motors can be divided into inner rotor motors and outer rotor motors.

[0003] Chinese patent publication number CN205212567U discloses an outer rotor motor, including a plastic-encapsulated stator and a plastic-encapsulated outer rotor. The plastic-encapsulated stator includes a stator plastic encapsulation, a stator assembly, and a wire clamp. The plastic-encapsulated outer rotor includes a shaftless rotor, a rotating shaft, and a rotor plastic encapsulation. The plastic-encapsulated stator is provided with a front bearing chamber and a rear bearing chamber, and the front bearing chamber and the rear bearing chamber are directly plastic-encapsulated. The plastic-encapsulated stator is provided with mounting feet that can match air conditioners.

[0004] The above technical solution has the following defects: the outer rotor motor is installed on the electrical appliance through the mounting foot structure and the mounting hole opened in the middle of each mounting foot, but the mounting foot structure increases the size of the outer rotor motor and increases the space occupied. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems existing in the prior art and to propose an outer rotor motor, which has the advantages of being small in size and taking up little space.

[0006] The above technical objectives of the present utility model can be achieved through the following technical solutions: an external rotor motor, including a plastic package, a stator winding, a rotor, a rotating shaft and a mounting base, the stator winding is arranged in the plastic package, the rotor is sleeved on the outside of the stator winding, the rotating shaft is rotatably arranged on the plastic package, the rotating shaft is connected to the rotor, at least two positioning grooves are provided at the bottom of the plastic package, and at least two positioning blocks are provided on the mounting base, the positioning blocks can be inserted into the positioning grooves, and the positioning blocks are detachably connected to the plastic package.

[0007] In the above-mentioned outer rotor motor, a first mounting hole is formed on the plastic package body, and the first mounting hole is located at the bottom of the positioning groove. A second mounting hole is formed on the positioning block, and the first mounting hole corresponds to the second mounting hole.

[0008] In the above-mentioned outer rotor motor, an insert is coaxially arranged in the mounting hole, and the insert is hollow.

[0009] In the above-mentioned outer rotor motor, the positioning block is adapted to the positioning groove.

[0010] In the above-mentioned outer rotor motor, a first bearing chamber and a second bearing chamber are provided on the plastic package body, and bearings are provided in both the first bearing chamber and the second bearing chamber.

[0011] In the above-mentioned outer rotor motor, a wire clamp is provided on the plastic package body.

[0012] In the above-mentioned outer rotor motor, a through hole for the rotating shaft to pass through is provided on the plastic package body.

[0013] In the above-mentioned outer rotor motor, three positioning grooves are provided on the bottom of the plastic package body, and the three positioning grooves are evenly distributed along the circumference. Three positioning blocks are provided on the mounting base, and the three positioning blocks are evenly distributed along the circumference.

[0014] In the above-mentioned outer rotor motor, the insert is made of copper material.

[0015] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0016] 1. By opening a positioning groove at the bottom of the plastic package body, the positioning block on the mounting base is inserted into the positioning groove at the bottom of the plastic package body when installing the outer rotor motor, and the positioning block is connected to the plastic package body, so that the outer rotor motor can be installed on the mounting base. The operation is simple and easy to install, and the size of the outer rotor motor is reduced, and the space occupied is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of an embodiment;

[0018] Figure 2 It is a structural diagram of an embodiment;

[0019] Figure 3 A schematic diagram of the structure of the mounting base of the embodiment;

[0020] Figure 4 It is a partial structural diagram of an embodiment.

[0021] Figure numerals: 1, plastic package; 2, stator winding; 3, rotor; 4, rotating shaft; 5, mounting base; 6, positioning groove; 7, positioning block; 8, mounting hole 1; 9, mounting hole 2; 10, insert; 11, bearing chamber 1; 12, bearing chamber 2; 13, wire clamp; 14, through hole. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] An outer rotor motor, such as Figures 1 to 4 As shown, it includes a plastic package body 1, a stator winding 2, a rotor 3, a rotating shaft 4 and a mounting base 5.

[0024] Specifically, the external rotor motor includes a plastic package body 1, a stator winding 2, a rotor 3 and a rotating shaft 4. The stator winding 2 is arranged in the plastic package body 1, the rotor 3 is sleeved on the outside of the stator winding 2, the rotating shaft 4 is rotatably set on the plastic package body 1, and a through hole 14 is opened on the plastic package body 1 for the rotating shaft 4 to pass through. The through hole 14 is opened and formed along the central axis of the plastic package body 1, and the rotating shaft 4 is connected to the rotor 3.

[0025] A bearing chamber 11 and a bearing chamber 2 12 are provided on the plastic sealing body 1. The bearing chamber 11 and the bearing chamber 2 12 are respectively located at the two ends of the plastic sealing body 1, and the bearing chamber 11 and the bearing chamber 2 12 are both coaxially arranged with the through hole 14. The bearing chamber 11 and the bearing chamber 2 12 are both connected with the through hole 14, and bearings are provided in the bearing chamber 11 and the bearing chamber 2 12.

[0026] A wire clamp 13 is provided on the plastic package body 1, and the wire clamp 13 is used to fix the wire to prevent the wire from falling off due to being pulled.

[0027] At least two positioning grooves 6 are provided at the bottom of the plastic package body 1. It should be noted that, in this embodiment, three positioning grooves 6 are provided at the bottom of the plastic package body 1, and the three positioning grooves 6 are evenly distributed along the circumference. Of course, the number of positioning grooves 6 can also be appropriately increased or decreased.

[0028] At least two positioning blocks 7 are provided on the mounting base 5. It should be noted that, in this embodiment, three positioning blocks 7 are provided on the mounting base 5, and the three positioning blocks 7 are evenly distributed along the circumference. Of course, the number of positioning blocks 7 can also be appropriately increased or decreased.

[0029] It should be noted that the positioning block 7 corresponds to the positioning slot 6 one by one, and the positioning block 7 is adapted to the positioning slot 6. The positioning block 7 can be inserted into the two positioning slots 6 respectively. When the user installs the outer rotor motor, the relative position of the outer rotor motor and the mounting base 5 can be determined by the relative position relationship between the positioning block 7 and the positioning slot 6, making the installation faster and more efficient.

[0030] The plastic package body 1 is provided with a mounting hole 8 , which is located at the bottom of the positioning groove 6 . It should be noted that, in this embodiment, there are three mounting holes 8 , and the mounting holes 8 correspond one to one with the positioning grooves 6 .

[0031] The positioning block 7 is provided with second mounting holes 9 . It should be noted that, in this embodiment, there are three second mounting holes 9 , and the second mounting holes 9 correspond one to one to the positioning blocks 7 .

[0032] The positioning block 7 is detachably connected to the plastic package body 1. Specifically, the mounting hole 1 8 corresponds to the mounting hole 2 9. The positioning block 7 is connected to the plastic package body 1 by screws in conjunction with the mounting hole 1 8 and the mounting hole 2 9, thereby completing the installation of the outer rotor motor. Simply remove the screws to release the connection between the positioning block 7 and the plastic package body 1, thereby completing the disassembly of the outer rotor motor.

[0033] By inserting the positioning block 7 into the positioning groove 6 and completing the connection between the positioning block 7 and the plastic package body 1, the installation of the outer rotor motor can be completed. The operation is simple and easy to install. By opening the positioning groove 6 at the bottom of the plastic package body 1 to cooperate with the positioning block 7 on the mounting base 5, the volume of the outer rotor motor is reduced, effectively reducing the occupied space.

[0034] An insert 10 is coaxially arranged in the mounting hole 1 8 . The insert 10 is hollow and made of copper. The insert 10 can effectively improve the connection strength between the positioning block 7 and the plastic package body 1 .

[0035] The working principle of this utility model is as follows:

[0036] When installing the outer rotor motor, first align the positioning groove 6 at the bottom of the plastic package 1 with the positioning block 7 on the mounting base 5, then insert the positioning block 7 into the positioning groove 6, and finally connect the positioning block 7 to the plastic package 1 by screwing the mounting hole 1 8 and the mounting hole 2 9, thus completing the installation of the outer rotor motor.

[0037] The specific embodiments described in this article are merely examples of the spirit of the present invention; technicians in the technical field of the present invention may make various modifications or additions to the described specific embodiments or replace them in a similar manner, but they will not deviate from the spirit of the present invention or exceed the scope defined by the attached claims.

Claims

1. An outer rotor motor, characterized in that: The invention comprises a plastic package body (1), a stator winding (2), a rotor (3), a rotating shaft (4) and a mounting base (5), wherein the stator winding (2) is arranged in the plastic package body (1), the rotor (3) is sleeved on the outside of the stator winding (2), the rotating shaft (4) is rotatably arranged on the plastic package body (1), the rotating shaft (4) is connected to the rotor (3), at least two positioning grooves (6) are provided at the bottom of the plastic package body (1), and at least two positioning blocks (7) are provided on the mounting base (5), the positioning blocks (7) can be inserted into the positioning grooves (6), and the positioning blocks (7) are detachably connected to the plastic package body (1).

2. The outer rotor motor according to claim 1, characterized in that: The plastic package body (1) is provided with a first mounting hole (8), and the first mounting hole (8) is located at the bottom of the positioning groove (6). The positioning block (7) is provided with a second mounting hole (9), and the first mounting hole (8) corresponds to the second mounting hole (9).

3. The outer rotor motor according to claim 2, characterized in that: An insert (10) is coaxially arranged in the first mounting hole (8), and the insert (10) is hollow.

4. The outer rotor motor according to claim 1, characterized in that: The positioning block (7) is adapted to the positioning groove (6).

5. The outer rotor motor according to claim 1, characterized in that: The plastic package body (1) is provided with a bearing chamber 1 (11) and a bearing chamber 2 (12), and bearings are provided in both the bearing chamber 1 (11) and the bearing chamber 2 (12).

6. The outer rotor motor according to claim 1, characterized in that: A wire clip (13) is provided on the plastic package body (1).

7. The outer rotor motor according to claim 1, characterized in that: The plastic package body (1) is provided with a through hole (14) for the rotating shaft (4) to pass through.

8. The outer rotor motor according to claim 1, characterized in that: The bottom of the plastic package body (1) is provided with three positioning grooves (6), and the three positioning grooves (6) are evenly distributed along the circumference; the mounting base (5) is provided with three positioning blocks (7), and the three positioning blocks (7) are evenly distributed along the circumference.

9. The outer rotor motor according to claim 3, characterized in that: The insert (10) is made of copper material.

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