Plastic package motor with compact structure

Abstract

The utility model discloses a plastic package motor with a compact structure, which belongs to the technical field of motors, and is characterized in that the plastic package motor comprises a plastic package stator and a rotor, the rotor is rotatably arranged on the outer side of the plastic package stator, the plastic package motor is characterized in that the bottom of the plastic package stator is provided with an installation groove, a circuit board is installed in the installation groove, and a capacitor is arranged on the circuit board; a mounting groove is formed in the bottom of the plastic package stator, a first containing groove is formed in the bottom of the mounting groove, the capacitor is located in the first containing groove, and a baffle used for covering the circuit board is mounted in the mounting groove. The capacitor arranged on the circuit board is located in the first accommodating groove, so that the overall structure is more compact, the occupied space is reduced, and the overall size of the plastic package motor is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and specifically relates to a compact encapsulated motor. Background Technology

[0002] Plastic-encapsulated motors use plastic encapsulation technology to encapsulate the stator core, windings, and other components of the motor entirely with engineering plastics, eliminating the need for traditional stator insulation processes and the metal casing of ordinary motors.

[0003] Chinese Patent No. CN202798253U discloses a plastic-encapsulated motor, including a plastic-encapsulated stator and a rotor assembly installed inside the plastic-encapsulated stator. It also includes an outer cover, which is installed on the plastic-encapsulated stator and covers the bottom surface and side walls of the plastic-encapsulated stator. The bottom surface of the outer cover is provided with a number of mounting screws or has a number of mounting holes.

[0004] The above technical solution has the following drawbacks: the capacitor of the encapsulated motor is mounted on the side wall of the outer casing with screws, so a large space needs to be reserved for the capacitor, which not only restricts the installation position, but also increases the overall size of the motor. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a compact encapsulated motor, which has the advantages of compact structure and reduced size.

[0006] The above-mentioned technical objective of this utility model can be achieved through the following technical solution: a compact encapsulated motor, including an encapsulated stator and a rotor, wherein the rotor is rotatably disposed on the outside of the encapsulated stator, characterized in that: a mounting groove is provided at the bottom of the encapsulated stator, a circuit board is installed in the mounting groove, a capacitor is disposed on the circuit board, a first receiving groove is provided at the bottom of the mounting groove, the capacitor is located in the first receiving groove, and a baffle for covering the circuit board is installed in the mounting groove.

[0007] In the aforementioned compact encapsulated motor, a second receiving groove is provided at the bottom of the mounting groove, and a wiring terminal is provided on the circuit board, the wiring terminal being located within the second receiving groove.

[0008] In the aforementioned compact encapsulated motor, a wiring hole is provided on the side wall of the encapsulated stator to connect to the second receiving groove.

[0009] In the above-mentioned compact encapsulated motor, a positioning protrusion is provided at the bottom of the mounting groove, and a positioning hole is provided on the surface of the circuit board. The positioning protrusion is adapted to the positioning hole and passes through the positioning hole.

[0010] In the above-mentioned compact encapsulated motor, the surface of the baffle is provided with a positioning groove, the positioning protrusion is adapted to the positioning groove, and the positioning protrusion is inserted into the positioning groove.

[0011] In the aforementioned compact encapsulated motor, the outer wall of the encapsulated stator is provided with several support feet, and each of the support feet is provided with mounting holes.

[0012] In the aforementioned compact encapsulated motor, several of the support legs are provided with notches that connect to the mounting holes. A shock absorber is detachably connected to the mounting holes, and the shock absorber is hollow and has a through hole.

[0013] In the above-mentioned compact encapsulated motor, the shock absorber includes a connecting part, a first limiting part, and a second limiting part. The connecting part is snapped into the mounting hole. The first limiting part and the second limiting part are respectively disposed at both ends of the connecting part. The lower surface of the first limiting part abuts against the upper surface of the encapsulated stator, and the second limiting part abuts against the lower surface of the encapsulated stator.

[0014] In the aforementioned compact encapsulated motor, the shock absorber is made of rubber.

[0015] In summary, the beneficial effects of this utility model compared to the prior art are as follows:

[0016] By creating an mounting slot at the bottom of the plastic-encapsulated stator, the circuit board is installed in the mounting slot, and a first receiving slot is created at the bottom of the mounting slot, where the capacitors on the circuit board are located. This makes the overall structure more compact, reduces space occupation, and reduces the overall size of the plastic-encapsulated motor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1;

[0018] Figure 2 This is a schematic diagram of the structure from another angle of Embodiment 1;

[0019] Figure 3 This is a schematic diagram of the structure of the plastic-encapsulated stator in Example 1;

[0020] Figure 4 This is a schematic diagram of the circuit board structure in Example 1;

[0021] Figure 5 This is a schematic diagram of the baffle structure in Example 1;

[0022] Figure 6 This is a schematic diagram of the structure of Example 2;

[0023] Figure 7This is a schematic diagram of the shock absorber in Example 2.

[0024] Reference numerals: 1. Molded stator; 2. Rotor; 3. Mounting slot; 4. Circuit board; 5. First receiving slot; 6. Baffle; 7. Second receiving slot; 8. Wiring hole; 9. Positioning protrusion; 10. Positioning hole; 11. Positioning groove; 12. Support foot; 13. Notch; 14. Shock absorber; 15. Through hole; 16. Connecting part; 17. First limiting part; 18. Second limiting part; 19. Mounting hole; 20. Capacitor; 21. Terminal. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] Example 1:

[0027] A compact encapsulated motor, such as Figures 1 to 5 As shown, it includes a plastic-encapsulated stator 1 and a rotor 2, with the rotor 2 rotatably disposed on the outside of the plastic-encapsulated stator 1.

[0028] The bottom of the plastic-encapsulated stator 1 is provided with a mounting groove 3, and a circuit board 4 is installed in the mounting groove 3. Furthermore, in order to improve the ease of installation of the circuit board 4, in this embodiment, a positioning protrusion 9 is provided at the bottom of the mounting groove 3, and a positioning hole 10 is provided on the surface of the circuit board 4. There are two positioning protrusions 9 and two positioning holes 10, which are also spaced apart. The positioning protrusions 9 and the positioning holes 10 correspond one-to-one and are adapted to each other. The positioning protrusions 9 pass through the positioning holes 10. The installation position of the circuit board 4 can be quickly determined by the relative positional relationship between the positioning protrusions 9 and the positioning holes 10, thereby improving the installation efficiency. Moreover, the stability of the circuit board 4 can be effectively guaranteed by the cooperation between the positioning protrusions 9 and the positioning holes 10.

[0029] A capacitor 20 is provided on the circuit board 4. A first receiving groove 5 is provided at the bottom of the mounting groove 3. The capacitor 20 is located in the first receiving groove 5. The capacitor 20 is accommodated by the first receiving groove 5, so that the capacitor 20 does not need to occupy additional installation space, making the overall structure more compact, thereby reducing space occupation and reducing the overall volume of the encapsulated motor.

[0030] The bottom of the mounting slot 3 is provided with a second receiving slot 7. The circuit board 4 is provided with a wiring terminal 21, which is located in the second receiving slot 7. The side wall of the plastic-encapsulated stator 1 is provided with a wiring hole 8 that connects to the second receiving slot 7, so as to facilitate the lead wire from the wiring terminal 21. Moreover, by providing the second receiving slot 7 to accommodate the wiring terminal 21, the wiring terminal 21 can be avoided from occupying additional installation space, which further makes the overall structure more compact, reduces space occupation, and reduces the overall volume of the plastic-encapsulated motor.

[0031] A baffle 6 for covering the circuit board 4 is installed in the mounting slot 3. The surface of the baffle 6 is provided with a positioning slot 11. The positioning protrusion 9 is adapted to the positioning slot 11 and is inserted into the positioning slot 11. By the relative positional relationship between the positioning protrusion 9 and the positioning slot 11, the installation position of the baffle 6 can be quickly determined, making the installation efficiency higher. At the same time, the cooperation between the positioning protrusion 9 and the positioning slot 11 can effectively ensure the stability of the baffle 6.

[0032] The outer wall of the plastic-encapsulated stator 1 is provided with several support feet 12. The support feet 12 are evenly distributed along the circumference, and each support foot 12 is provided with a mounting hole 19. The stability of the plastic-encapsulated motor can be effectively guaranteed by the support of the support feet 12.

[0033] Example 2:

[0034] The difference between Example 2 and Example 1 is that, as Figures 6 to 7 As shown, several support feet 12 are provided with notches 13 that connect to mounting holes 19. Shock absorbers 14 are detachably connected inside the mounting holes 19. The shock absorbers 14 are hollow and have through holes 15. Preferably, the shock absorbers 14 are made of rubber.

[0035] The shock absorber 14 includes a connecting part 16, a first limiting part 17, and a second limiting part 18. The connecting part 16 is snapped into the mounting hole 19. The first limiting part 17 and the second limiting part 18 are respectively disposed at both ends of the connecting part 16. The lower surface of the first limiting part 17 abuts against the upper surface of the plastic-encapsulated stator 1, and the second limiting part 18 abuts against the lower surface of the plastic-encapsulated stator 1, thereby ensuring the stability of the shock absorber 14. Due to the characteristics of the rubber material, it can effectively reduce the vibration generated during the operation of the plastic-encapsulated motor.

[0036] It should be noted that when installing the shock absorber 14, the installation can be completed by pressing the connecting part 16 of the shock absorber 14 into the mounting hole 19 through the notch 13.

[0037] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A compact encapsulated motor, comprising an encapsulated stator (1) and a rotor (2), wherein the rotor (2) is rotatably disposed on the outside of the encapsulated stator (1), characterized in that: The bottom of the encapsulated stator (1) is provided with a mounting groove (3), a circuit board (4) is installed in the mounting groove (3), a capacitor (20) is provided on the circuit board (4), a first receiving groove (5) is provided at the bottom of the mounting groove (3), the capacitor (20) is located in the first receiving groove (5), and a baffle (6) for covering the circuit board (4) is installed in the mounting groove (3).

2. The compact encapsulated motor according to claim 1, characterized in that: The bottom of the mounting groove (3) is provided with a second receiving groove (7), and the circuit board (4) is provided with a wiring terminal (21), which is located in the second receiving groove (7).

3. A compact encapsulated motor according to claim 2, characterized in that: The side wall of the plastic-encapsulated stator (1) is provided with a wiring hole (8) that connects to the second receiving groove (7).

4. A compact encapsulated motor according to any one of claims 1, 2, or 3, characterized in that: The bottom of the mounting groove (3) is provided with a positioning protrusion (9), and the surface of the circuit board (4) is provided with a positioning hole (10). The positioning protrusion (9) is adapted to the positioning hole (10), and the positioning protrusion (9) passes through the positioning hole (10).

5. A compact encapsulated motor according to claim 4, characterized in that: The surface of the baffle (6) is provided with a positioning groove (11), and the positioning protrusion (9) is adapted to the positioning groove (11) and the positioning protrusion (9) is inserted into the positioning groove (11).

6. A compact encapsulated motor according to any one of claims 1, 2, or 3, characterized in that: The outer side wall of the plastic-encapsulated stator (1) is provided with a plurality of support feet (12), and each of the plurality of support feet (12) is provided with mounting holes (19).

7. A compact encapsulated motor according to claim 6, characterized in that: Each of the support feet (12) has a notch (13) that connects to the mounting hole (19). A shock absorber (14) is detachably connected inside the mounting hole (19). The shock absorber (14) is hollow and has a through hole (15).

8. A compact encapsulated motor according to claim 7, characterized in that: The shock absorber (14) includes a connecting part (16), a first limiting part (17) and a second limiting part (18). The connecting part (16) is engaged in the mounting hole (19). The first limiting part (17) and the second limiting part (18) are respectively disposed at both ends of the connecting part (16). The lower surface of the first limiting part (17) abuts against the upper surface of the plastic-encapsulated stator (1), and the second limiting part (18) abuts against the lower surface of the plastic-encapsulated stator (1).

9. A compact encapsulated motor according to claim 8, characterized in that: The shock absorber (14) is made of rubber.

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