Ventilator motor

Abstract

The utility model discloses a ventilator motor which comprises a motor body, the motor body comprises a stator, a first end cover and a second end cover, a first lug seat is arranged on the peripheral wall of the first end cover, a second lug seat is arranged on the peripheral wall of the second end cover, the first lug seat abuts against one end face of the stator, and the second lug seat abuts against the other end face of the stator. The first end cover is positioned and sleeved at one end of the stator, and the second end cover is positioned and sleeved at the other end of the stator; and a fastener is connected between the first lug and the second lug, so that the first end cover is matched with the second end cover to clamp the stator. The motor is novel in structure, high in heat dissipation efficiency, simple in positioning butt joint and assembly, and strong in practicability, and the stator adopts an exposed design.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and in particular relates to a ventilation fan motor. Background Technology

[0002] An exhaust fan is an air conditioning appliance that uses a motor to drive the fan blades to rotate and create airflow, thus exchanging indoor and outdoor air. It is mostly used in relatively enclosed spaces.

[0003] Existing ventilation fan motors typically consist of two half-shells enclosing the stator, which makes it difficult for internal heat to dissipate, resulting in high temperatures that affect the normal operation of the motor.

[0004] Existing patent document (publication number: CN216111396U) discloses "a ventilation fan motor", which also has the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a ventilation fan motor with a novel structure, an exposed stator design, high heat dissipation efficiency, easy positioning and assembly, and strong practicality.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A ventilation fan motor includes a motor body, characterized in that: the motor body includes a stator, a first end cover, and a second end cover; a first lug is provided on the peripheral wall of the first end cover, and a second lug is provided on the peripheral wall of the second end cover; the first lug abuts against one end face of the stator, and the second lug abuts against the other end face of the stator, so that the first end cover is positioned and sleeved on one end of the stator, and the second end cover is positioned and sleeved on the other end of the stator; a fastener is connected between the first lug and the second lug, so that the first end cover cooperates with the second end cover to clamp the stator. This motor has a novel structure, an exposed stator design, high heat dissipation efficiency, simple positioning and assembly, and strong practicality.

[0008] Furthermore, a limiting groove for limiting fasteners is provided on the outer peripheral wall of the stator, which can limit the radial rotation of the stator and improve the installation stability of the stator.

[0009] Furthermore, the fastener uses an end screw. The first ear seat has a limiting through hole corresponding to the end screw, and the second ear seat has a limiting screw hole corresponding to the end screw. The end screw is passed through the limiting through hole and then screwed into the limiting screw hole to achieve locking. The first end cap and the second end cap cannot be freely separated, ensuring a reliable connection.

[0010] Furthermore, a first heat dissipation groove is provided between the end face of the first end cap and the outer peripheral wall, which has a large air circulation area and can dissipate heat in both the axial and radial directions, thereby improving the heat dissipation efficiency.

[0011] Furthermore, a second heat dissipation groove is provided between the end face of the second end cap and the outer peripheral wall, which has a large air circulation area and can dissipate heat in both the axial and radial directions, thus improving the heat dissipation efficiency.

[0012] Furthermore, the first end cover has circumferentially distributed first vent holes, which increases the air circulation area inside and outside the first end cover, which is conducive to axial heat dissipation and has high heat dissipation efficiency.

[0013] Furthermore, the second end cover has second vent holes distributed circumferentially, which increases the air circulation area inside and outside the second end cover, which is conducive to axial heat dissipation and has high heat dissipation efficiency.

[0014] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0015] The assembly method involves first fitting the first end cap onto one end of the stator, ensuring the first lug abuts against the stator's end face. Then, fitting the second end cap onto the other end of the stator, ensuring the second lug abuts against the stator's end face. This positioning of the first and second end caps at both ends of the stator reduces the difficulty of positioning them. Sufficient space is left between the stator and the end faces of both the first and second end caps, allowing airflow through the first and second heat dissipation channels to expel heat. Next, the end screw is passed through the limiting through-hole of the first lug and screwed into the limiting screw hole of the second lug, achieving a lock. The first and second end caps cannot detach freely, ensuring a reliable connection. The first and second end caps, working together, clamp the stator, restricting axial movement. The end screw, located in the limiting groove of the stator, restricts radial rotation, improving the stator's installation stability. The stator's exposed design allows direct contact with external air, resulting in high heat dissipation efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Fig. 1 This is a schematic diagram of the structure of a ventilation fan motor according to the present invention;

[0018] Fig. 2 This is a schematic diagram of the structure of the first end cap in this utility model;

[0019] Fig. 3 This is a schematic diagram of the structure of the second end cap in this utility model;

[0020] Fig. 4 This is a schematic diagram of the stator structure in this utility model.

[0021] In the figure: 1-Stator; 2-First end cover; 3-Second end cover; 4-First heat dissipation channel; 5-First vent hole; 6-Second heat dissipation channel; 7-Second vent hole; 8-First ear seat; 9-Second ear seat; 10-End screw; 11-Limiting through hole; 12-Limiting screw hole; 13-Limiting groove. Detailed Implementation

[0022] like Figs. 1 to 4 As shown, this utility model discloses a ventilation fan motor, which includes: a motor body, a motor shaft, a rotor, a stator 1, a first end cover 2, and a second end cover 3. The stator 1 is located on the outside of the rotor, and the motor shaft is mounted on the rotor. The motor shaft rotates synchronously with the rotor.

[0023] A first heat dissipation groove 4 is provided between the end face of the first end cover 2 and the outer peripheral wall, which has a large air circulation area and can dissipate heat in both axial and radial directions, thus improving heat dissipation efficiency. The end face of the first end cover 2 has first vent holes 5 distributed circumferentially, which increases the air circulation area inside and outside the first end cover 2, which is conducive to axial heat dissipation and has high heat dissipation efficiency.

[0024] A second heat dissipation groove 6 is provided between the end face of the second end cover 3 and the outer peripheral wall, which has a large air circulation area and can dissipate heat in both axial and radial directions, thus improving heat dissipation efficiency. A second vent hole 7 is distributed circumferentially on the end face of the second end cover 3, which increases the air circulation area inside and outside the second end cover 3, which is conducive to axial heat dissipation and has high heat dissipation efficiency.

[0025] The first end cover 2 has a first ear seat 8 on its peripheral wall, and the second end cover 3 has a second ear seat 9 on its peripheral wall. A fastener is connected between the first ear seat 8 and the second ear seat 9. The fastener is an end screw 10. The first ear seat 8 has a limiting through hole 11 corresponding to the end screw 10, and the second ear seat 9 has a limiting screw hole 12 corresponding to the end screw 10. A limiting groove 13 for limiting the end screw 10 is opened on the outer peripheral wall of the stator 1.

[0026] In the assembly type, the first end cap 2 is first fitted onto one end of the stator 1, so that the first lug 8 abuts against the end face of the stator 1. Then, the second end cap 3 is fitted onto the other end of the stator 1, so that the second lug 9 abuts against the end face of the stator 1. This achieves the positioning and fitting of the first end cap 2 and the second end cap 3 onto both ends of the stator 1, reducing the difficulty of positioning the first end cap 2 and the second end cap 3. Sufficient space is left between the end faces of the stator 1 and the first end cap 2, and the end faces of the second end cap 3, which facilitates the airflow through the first heat dissipation channel 4 and the second heat dissipation channel 6 to dissipate heat to the outside. Then, the end screw 10 is passed through the limiting through hole 11 of the first ear seat 8 and screwed into the limiting screw hole 12 of the second ear seat 9 to achieve locking. The first end cover 2 and the second end cover 3 cannot be freely separated, and the connection is reliable. The first end cover 2 and the second end cover 3 clamp the stator 1, which can limit the axial movement of the stator 1. At this time, the end screw 10 is located in the limiting groove 13 of the stator 1, which can limit the radial rotation of the stator 1 and improve the installation stability of the stator 1. The stator 1 adopts an exposed design and is in direct contact with the external air, which has a good heat dissipation effect.

[0027] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A ventilation fan motor, comprising: Motor body, Its features are: The motor body includes a stator, a first end cover and a second end cover. A first lug is provided on the peripheral wall of the first end cover and a second lug is provided on the peripheral wall of the second end cover. The first lug abuts against one end face of the stator and the second lug abuts against the other end face of the stator, so that the first end cover is positioned and sleeved on one end of the stator and the second end cover is positioned and sleeved on the other end of the stator. A fastener is connected between the first ear seat and the second ear seat so that the first end cover cooperates with the second end cover to clamp the stator.

2. The ventilation fan motor according to claim 1, characterized in that: The stator has a limiting groove on its outer peripheral wall for limiting the fastener.

3. A ventilation fan motor according to claim 1, characterized in that: The fastener is an end screw, the first lug is provided with a limiting through hole corresponding to the end screw, and the second lug is provided with a limiting screw hole corresponding to the end screw.

4. A ventilation fan motor according to claim 1, characterized in that: A first heat dissipation groove is provided between the end face of the first end cap and the outer peripheral wall.

5. A ventilation fan motor according to claim 1, characterized in that: A second heat dissipation groove is provided between the end face of the second end cap and the outer peripheral wall.

6. A ventilation fan motor according to claim 1, characterized in that: The first end cap has a first vent hole distributed circumferentially.

7. A ventilation fan motor according to claim 1, characterized in that: The second end cap has second vent holes distributed circumferentially.

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