Flat motor for an environmental control fan

Abstract

The utility model discloses a kind of flat type motors for environmental control fan, including air duct cylinder and motor assembly, the motor assembly includes stator component, rotor component located in the inside of stator component and the protection frame for supporting stator component, the rotor inner cavity of the rotor component is hollow structure, the outer surface of the protection frame annularly distributes at least two groups of support rib components, the support rib component is used to let motor assembly hollow in air duct cylinder;The utility model has the characteristics of compact structure, light weight, can integrate air duct and motor casing, adopt support rib to support air duct middle motor installation part to let motor hollow, and the rotor of rotor component is hollow structure, to carry out the flat design of motor, can guarantee that rotor magnetic density is under the premise of unsaturation, reduce the weight of motor whole.

Description

Technical Field

[0001] This utility model relates to the field of motors, specifically a flat motor for environmental control fans. Background Technology

[0002] The environmental control system is typically used on the machine to dissipate heat from other heat-generating equipment and provide the necessary airflow; its role is self-evident.

[0003] Conventional environmental control fans typically adopt a "DC brushless motor + impeller + fan casing" design, where the motor and fan casing are designed separately and then assembled together. This design not only increases the weight of the environmental control system, but also reduces the reliability of the entire system due to the need to use screws to fix the motor and fan casing. Therefore, a flat motor for environmental control fans is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a flat motor for environmental control fans to solve the problems of heavy weight and poor overall reliability of traditional environmental control motors mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A flat motor for an environmental control fan includes a fan casing and a motor assembly; the motor assembly includes a stator component, a rotor component located inside the stator component, and a protective frame for supporting the stator component. The rotor component has a hollow rotor cavity, and the outer surface of the protective frame has at least two sets of support ribs distributed in a ring. The support ribs are used to allow the motor assembly to be hollowed out and placed inside the fan casing.

[0006] Furthermore, the cross-sectional shape of the support rib component is "h" shaped. The support rib component includes a first support rib vertically connected to the top surface of the protective frame and a second support rib connected to the inner side of the first support rib. The top end of the first support rib is fixedly connected to the top surface inside the air duct body.

[0007] Furthermore, the cross-sectional shape of the second support rib is "L" shaped, and the vertical section of the second support rib is fixed to the protective frame.

[0008] Furthermore, the lateral length of the rotor component does not exceed the depth of the duct body.

[0009] Furthermore, both sides of the bottom of the air duct body are integrally connected to a base support, and the cross-sectional shape of the base support is "L" shaped. The overall vertical width of the motor assembly does not exceed the vertical width of the inner cylinder of the air duct body.

[0010] The beneficial effects of this utility model are: This utility model features a compact structure and light weight, integrating the air duct and motor housing into one unit. It uses supporting ribs to support the motor mounting part in the middle of the air duct, allowing the motor to be hollowed out. Furthermore, the rotor of the rotor component has a hollow structure, enabling a flattened design of the motor. This ensures that the rotor magnetic flux density remains unsaturated, reducing the overall weight of the motor and improving the overall reliability of the environmental control motor. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the flat motor used in the environmental control fan of this utility model; Figure 2 This is a side view of the structure of the flat motor for the environmental control fan of this utility model.

[0012] In the diagram: 1. Air duct body; 2. Protective frame; 3. Stator assembly; 4. Rotor assembly; 5. Base support; 6. First support rib; 7. Second support rib. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-2 This invention provides a technical solution for a flat motor used in an environmental control fan, comprising a fan casing 1 and a motor assembly. The motor assembly includes a stator component 3, a rotor component 4 located inside the stator component 3, and a protective frame 2 for supporting the stator component 3. The rotor component 4 has a hollow rotor cavity, and the lateral length of the rotor component 4 does not exceed the depth of the fan casing 1. The stator component 3 and rotor component 4 are the main components of the motor assembly, and their structures and principles are well-known technologies in the market, so they will not be described in detail here. The fan casing 1 has a circular annular shape in side view. At least two sets of supporting ribs are distributed in a ring on the outer surface of the protective frame 2. The component, the support rib component, is used to allow the motor assembly to be hollowed out and placed inside the air duct body 1; the cross-sectional shape of the support rib component is "h" shaped, preferably, at least five sets of support rib components are arranged, and the five sets of support rib components are distributed in a ring on the inner wall of the air duct body 1; the support rib component includes a first support rib 6 vertically connected to the top surface of the protective frame 2, and a second support rib 7 connected to the inner side of the first support rib 6, and the top end of the first support rib 6 is fixedly connected to the inner top surface of the air duct body 1; the cross-sectional shape of the second support rib 7 is "L" shaped, and the vertical section of the second support rib 7 is fixed to the protective frame 2; wherein, the first support rib 6 and the second support rib 7 can be, but are not limited to, steel bars.

[0015] It should be noted that the bottom sides of the air duct body 1 are integrally connected with the base support 5, and the cross-sectional shape of the base support 5 is "L" shaped. The vertical width of the motor assembly as a whole does not exceed the vertical width of the inner cylinder of the air duct body 1. The base support 5 is used to support the air duct body 1, so that the air duct body 1 can be firmly installed on the equipment body by screws and other fasteners. The air duct body 1 and the base support 5 can be made of, but are not limited to, stainless steel or aluminum steel. Other materials such as iron or steel can also be used to make the air duct body 1. The base support 5 has several screw holes to facilitate the installation of fasteners.

[0016] This environmental control fan uses a flat motor, directly integrating the motor assembly housing with the duct body 1. In other words, the duct body 1 serves as the motor assembly housing, eliminating the need for a conventional duct. This significantly reduces the weight of the environmental control system and decreases the number of standard parts such as screws, improving the system's reliability. Due to axial length limitations, the number of motor turns can be increased to shorten the stator and rotor core lengths to ensure the back electromotive force coefficient of the environmental control system. Furthermore, concentrated windings are used to reduce the winding end dimensions. Simultaneously, the rotor cavity of the rotor component 4 is... The air duct structure is designed to reduce the weight of the environmental control system while ensuring that the rotor magnetic flux density is not saturated. The air duct body 1 and the protective frame 2 are integrated, and the protective frame 2 can serve as the motor housing. The stator component 3 is installed in the air duct body 1 and adopts a concentrated winding and increased winding turns to flatten and lighten the motor. Based on the air duct structure used in the environmental control system, the protective frame 2 of the motor component is integrated with the air duct. While ensuring the strength of the environmental control fan, the motor component is hollowed out and placed inside the air duct body 1. The rotor cavity of the rotor component 4 is a hollow structure to achieve sufficient weight reduction.

[0017] It should be noted that, based on the operating speed of the motor assembly, appropriate concentrated winding parameters should be selected to minimize the height of the winding ends of stator component 3.

[0018] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0019] The above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be understood that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. In the present utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "joining", "fixing", etc. should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components. Among them, there are various ways of detachable installation, such as by plugging and snapping, or by bolt connection, etc.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flat motor for an environmental control fan, characterized in that: It includes a wind tunnel body and a motor assembly; the motor assembly includes a stator component, a rotor component located inside the stator component, and a protective frame for supporting the stator component. The rotor component has a hollow rotor cavity. The outer surface of the protective frame has at least two sets of support ribs distributed in a ring. The support ribs are used to allow the motor assembly to be hollowed out and placed inside the wind tunnel body.

2. The flat motor for an environmental control fan according to claim 1, characterized in that: The cross-sectional shape of the support rib component is "h" shaped. The support rib component includes a first support rib vertically connected to the top surface of the protective frame and a second support rib connected to the inner side of the first support rib. The top end of the first support rib is fixedly connected to the top surface inside the air duct body.

3. The flat motor for an environmental control fan according to claim 2, characterized in that: The second support rib has an "L" shaped cross-section, and its vertical section is fixed to the protective frame.

4. The flat motor for an environmental control fan according to claim 1, characterized in that: The lateral length of the rotor component does not exceed the depth of the duct body.

5. The flat motor for an environmental control fan according to claim 1, characterized in that: Both sides of the bottom of the air duct body are integrally connected to the base support, and the cross-sectional shape of the base support is "L" shaped. The overall vertical width of the motor assembly does not exceed the vertical width of the inner cylinder of the air duct body.

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