Direct-current and dry-wet dual-purpose scrubber fan heat dissipation structure

Abstract

The utility model discloses a direct current and dry and wet dual-purpose scrubber fan heat dissipation structure which comprises a machine shell, a rotating shaft is arranged in the middle of an inner cavity of the machine shell, a rotor assembly and a stator assembly are sequentially arranged on the outer side of the rotating shaft, fixed impellers connected with the machine shell are arranged at the lower ends of the rotor assembly and the stator assembly, and an upper support connected with the machine shell is arranged on the upper portion of the machine shell. The beneficial effects of the utility model are that the housing employs the aluminum plate stretching member, the heat dissipation coefficient of raw materials is considered, the strength requirement of the motor housing is satisfied, secondary processing is not needed, the labor cost is reduced, the heat dissipation diffuser optimizes the fluid air channel at the air outlet to a certain extent, the loss caused by backflow is reduced, and the service life of the motor housing is prolonged. And the motor efficiency is improved within a certain range.

Description

Technical Field

[0001] This utility model relates to the technical field of floor scrubber fan structure, specifically a DC, wet and dry floor scrubber fan heat dissipation structure. Background Technology

[0002] Most existing DC brushless fans and floor scrubbers that can be used for both wet and dry applications use cast aluminum parts as the housing structure. Ribs are added to the sides of the housing to increase the strength of the parts and increase the heat dissipation area, thereby reducing the temperature rise of the motor.

[0003] Currently, cast aluminum parts are expensive, and they also require machining to correct the dimensions, which increases the cost. The proposed new heat dissipation diffuser structure reduces part costs while also reducing temperature rise. Utility Model Content

[0004] The purpose of this invention is to provide a heat dissipation structure for a DC, wet and dry floor scrubber fan, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a DC, wet and dry floor scrubber fan heat dissipation structure, including a housing, a rotating shaft in the middle of the inner cavity of the housing, a rotor assembly and a stator assembly arranged sequentially on the outer side of the rotating shaft, a fixed impeller connected to the housing at the lower end of the rotor assembly and the stator assembly, and an upper bracket connected to the rotor assembly and the stator assembly at the upper part of the housing.

[0006] Further optimized, a heat dissipation diffuser is provided on the outer side of the casing.

[0007] In a further optimization, an oil seal is provided between the fixed impeller and the rotating shaft.

[0008] Further optimized, the fixed impeller is a one-piece injection molded part with ribs at the bottom.

[0009] In a further optimized version, the housing is formed by a combination of a stretched component and a profile.

[0010] In a further optimized configuration, the heat dissipation diffuser is positioned relative to the stepped portion on the outer side of the housing, and the positioned portion is coated with thermally conductive adhesive.

[0011] Beneficial effects

[0012] The DC, wet and dry floor scrubber fan heat dissipation structure provided by this utility model uses aluminum sheet stretching for the casing. While taking into account the heat dissipation coefficient of the raw materials, it also meets the strength requirements of the motor casing. Moreover, it does not require secondary processing, reducing labor costs. The heat dissipation diffuser also optimizes the fluid airflow at the air outlet to a certain extent, reducing losses caused by backflow and improving motor efficiency to a certain extent. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the heat dissipation diffuser installation structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the fixed impeller structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the casing structure of this utility model. Detailed Implementation

[0017] 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.

[0018] Example

[0019] like Figure 1-4 As shown, a DC, wet and dry floor scrubber fan heat dissipation structure includes a housing 1, a rotating shaft 5 in the middle of the inner cavity of the housing 1, a rotor assembly 3 and a stator assembly 4 arranged sequentially on the outer side of the rotating shaft 5, a stator impeller 6 connected to the housing 1 at the lower end of the rotor assembly 3 and the stator assembly 4, and an upper bracket 9 connected to the upper part of the housing 1.

[0020] In this embodiment, a heat dissipation diffuser 8 is provided on the outer side of the casing 1. It adopts the process of stretching profile and uses the step at the bend of the casing for positioning. The connection is filled with thermally conductive adhesive. The number of fins of the heat dissipation diffuser 8 is the same as the number of blades of the fixed impeller 6. The fin angle is the same as the air outlet of the fixed impeller 6. This ensures that the motor will not produce a whistling sound due to the diffuser blocking the air when it is blowing air out. Due to the presence of fins, the contact area between the air and the casing is increased, which enhances the heat dissipation effect.

[0021] An oil seal 7 is provided between the fixed impeller 6 and the rotating shaft 5.

[0022] The impeller 6 is a one-piece injection molded part with ribs at the bottom, which avoids the risk of seal failure caused by water accumulation at the top.

[0023] The housing 1 is formed by a combination of stretched parts and profiles, which takes into account the heat dissipation coefficient of the raw materials while also meeting the strength requirements of the motor housing, and does not require secondary processing, thus reducing labor costs.

[0024] The heat dissipation diffuser 8 is positioned with the stepped portion on the outside of the housing 1, and the positioned portion is coated with thermally conductive adhesive.

[0025] The shell structure adopts a combination of stretched parts and profiles, which not only ensures the thermal conductivity of the raw materials of the parts, but also reduces the cost of the parts. The heat dissipation diffuser also optimizes the fluid airflow at the air outlet to a certain extent, reduces the loss caused by backflow, and improves the motor efficiency to a certain extent.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A direct current, dry and wet dual-purpose floor cleaning machine fan heat dissipation structure, characterized in that: It include the casing (1), the middle part of the casing (1) inside chamber is equipped with the rotating shaft (5), the rotating shaft (5) outside is sequentially provided with rotor assembly (3) and stator assembly (4), the rotor assembly (3) and stator assembly (4) lower end are equipped with the fixed blade wheel (6) connected with the casing (1), the casing (1) upper part is equipped with the upper support (9) connected with it, the casing (1) outside is equipped with the heat dissipation diffuser (8), the fixed blade wheel (6) and the rotating shaft (5) between are equipped with the oil seal (7), the fixed blade wheel (6) is the integrative injection molding spare, and the bottom is reinforced, the heat dissipation diffuser (8) and the step part positioned outside the casing (1) are set, and the positioning is coated with the heat-conducting glue water.

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