High-voltage brushless fan structure

Abstract

The utility model relates to the technical field of motor manufacturing, and particularly discloses a high-voltage brushless fan structure which comprises a plastic shell, and a radiator is assembled in the plastic shell; an impeller cover of the vacuum dust collector motor is assembled at the bottom of the plastic shell; the driving plate is arranged above the radiator and is assembled in the plastic shell; a fan cover; the fan cover is assembled at the top of the plastic shell, an air inlet channel is axially formed in the fan cover, the radiator is assembled in the plastic shell, the driving plate is installed above the radiator, and when a motor of the vacuum dust collector runs, air can enter the air inlet channel to be matched with the radiator so as to dissipate heat of the driving plate; compared with the prior art, the service life of the driving plate is prolonged, and the driving plate has high use value.

Description

Technical Field

[0001] This application relates to the technical field of motor manufacturing, and particularly to a high-voltage brushless fan structure. Background Art

[0002] The brushless fan used in a vacuum cleaner is mainly composed of a motor and a drive board. In the prior art, the drive board of the brushless fan is arranged externally to the motor, and this method cannot cool the drive board by air, which will cause damage due to high temperature during long-term operation, and the service life is short. In order to solve this problem, a high-voltage brushless fan structure in the prior art is provided. Summary of the Utility Model

[0003] To overcome the deficiencies of the prior art, this application discloses a high-voltage brushless fan structure.

[0004] To achieve the above object, the technical solution adopted in this application is: a high-voltage brushless fan structure, including:

[0005] A plastic housing, inside which a radiator is assembled;

[0006] A vacuum cleaner motor, the impeller cover of which is assembled at the bottom of the plastic housing;

[0007] A drive board, which is assembled inside the plastic housing above the radiator;

[0008] A wind cover; the wind cover is assembled on the top of the plastic housing, and an air inlet channel is axially formed inside the wind cover.

[0009] Further preferably, two through grooves for leading wires are formed on the outer ring of the plastic housing, and rubber sealing blocks are embedded in the two through grooves. A plurality of through holes for wires to pass through are respectively formed on the two rubber sealing blocks.

[0010] Further preferably, a plurality of L-shaped columns are uniformly formed on the inner bottom surface of the plastic housing. A clamping tongue is integrally provided on one side of the vertical part of the L-shaped column pointing to the center of the plastic housing. The radiator is placed on the horizontal parts of the plurality of L-shaped columns and is clamped by the plurality of clamping tongues.

[0011] Further preferably, a plurality of first screw hole columns are uniformly formed on the inner bottom surface of the plastic housing, and the plurality of first screw hole columns are arranged in a staggered manner with the plurality of L-shaped columns. A plurality of U-shaped grooves are uniformly formed at the edge of the drive board, and a plurality of screws are locked on the drive board and pass through the U-shaped grooves to the first screw hole columns to be fixed to the plastic housing.

[0012] Further preferably, the impeller cover of the vacuum cleaner motor is press-fitted at the bottom of the plastic housing.

[0013] Further preferably, several inner grooves are evenly formed on the outer ring of the plastic housing, several second screw hole columns are evenly formed on the inner ring of the wind cover, and screws are locked into the inner grooves to the second screw hole columns to fix the wind cover and the plastic housing together.

[0014] Further preferably, a sealing ring is provided between the wind cover and the plastic housing.

[0015] The present application achieves the following beneficial effects:

[0016] In the present application, the radiator is assembled in the plastic housing and the drive board is installed above the radiator. When the vacuum cleaner motor operates, air can enter the air inlet channel and cooperate with the radiator to dissipate heat from the drive board. Compared with the prior art, the service life of the drive board is increased, and it has high use value.

[0017] As for other features and advantages of the present application, they will be described in the subsequent description, and will be partially obvious from the description, or will be understood by implementing the present application. The objectives and other advantages of the present application can be achieved and obtained through the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the disclosure of the present application, and are used together with the description to explain the principles of the present disclosure.

[0019] Figure 1 It is a schematic diagram of the overall structure disclosed in the present application;

[0020] Figure 2 It is a schematic sectional structure diagram disclosed in the present application;

[0021] Figure 3 It is an exploded structure diagram disclosed in the present application;

[0022] Figure 4 It is a schematic diagram of the inside of the plastic housing disclosed in the present application;

[0023] Figure 5 It is a schematic diagram of the radiator installation structure disclosed in the present application;

[0024] Figure 6 It is a schematic diagram of the drive board installation structure disclosed in the present application;

[0025] In the figure: 10, plastic housing; 11, radiator; 12, through slot; 13, inner groove; 14, L-shaped post; 141, clamping tongue; 15, first screw hole post; 16, second screw hole post; 20, vacuum cleaner motor; 30, drive board; 31, U-shaped groove; 40, air hood; 41, air inlet channel; 50, rubber seal block; 51, through hole; 60, screw; 70, sealing ring. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0027] In the description of the present application, it should be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationship are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0028] Embodiment

[0029] In order to solve the problems in the prior art that the brushless motors used in vacuum cleaners all have the drive board 3030 externally hung on the motor, and it is impossible to perform air-cooling on the drive board 30, and it will be damaged due to high temperature during long-term operation, etc. Refer to Figures 1 - 6 As shown, the present application discloses a high-voltage brushless fan structure, including: a plastic housing 10, and a radiator 11 is assembled inside the plastic housing 10;

[0030] A vacuum cleaner motor 20, and the impeller cover of the vacuum cleaner motor 20 is assembled at the bottom of the plastic housing 10;

[0031] A drive board 30, and the drive board 30 is assembled inside the plastic housing 10 above the radiator 11;

[0032] An air hood 40; the air hood 40 is assembled on the top of the plastic housing 10, and an air inlet channel 41 is axially opened inside the air hood 40.

[0033] Through the above method, the problem of the externally hung drive board 30 is solved, and when the vacuum cleaner motor 20 is running, air can enter the air inlet channel 41 and cooperate with the radiator 11 to dissipate heat from the drive board 30, increasing the service life and having high use value.

[0034] Refer to Figure 1 and Figure 3As shown, in order to enable the wire to enter the plastic housing 10 and be connected to the driving board 30, and to ensure that the plastic housing 10 does not leak air, two through slots 12 for leading the wire are provided on the outer ring of the plastic housing 10, and rubber sealing blocks 50 are embedded in the two through slots 12. A plurality of through holes 51 for the wire to pass through are respectively provided on the two rubber sealing blocks 50. During specific use, the aperture of the through hole 51 can be selected according to the outer diameter of the wire as required.

[0035] Reference Figure 4 and Figure 5 As shown, in order to facilitate the installation of the radiator 11, a plurality of L-shaped columns 14 are uniformly formed on the inner bottom surface of the plastic housing 10. A clamping tongue 141 is integrally provided on one side of the vertical part of the L-shaped column 14 pointing to the center of the plastic housing 10. The radiator 11 is placed on the horizontal parts of the plurality of L-shaped columns 14 and clamped by the plurality of clamping tongues 141. In this way, the radiator 11 can be quickly installed with the plastic housing 10.

[0036] Reference Figure 4 and Figure 6 As shown, in order to quickly install the driving board 30 with the plastic housing 10, a plurality of first screw hole columns 15 are uniformly formed on the inner bottom surface of the plastic housing 10. The plurality of first screw hole columns 15 are arranged in a staggered manner with the plurality of L-shaped columns 14. A plurality of U-shaped grooves 31 are uniformly formed at the edge of the driving board 30. A plurality of screws 60 are locked on the driving board 30 and pass through the U-shaped grooves 31 to the first screw hole columns 15 to be fixed with the plastic housing 10.

[0037] As a preferred assembly method, the impeller cover of the vacuum cleaner motor 20 is press-fitted on the bottom of the plastic housing 10 in this application. This method has a lower cost and is also relatively convenient to install.

[0038] Reference Figure 1 and Figure 3 As shown, in order to facilitate the installation of the wind cover 40, a plurality of inner grooves 13 are uniformly formed on the outer ring of the plastic housing 10. A plurality of second screw hole columns 16 are uniformly formed on the inner ring of the wind cover 40. Screws 60 are locked into the inner grooves 13 to the second screw hole columns 16 to fix the wind cover 40 with the plastic housing 10.

[0039] Continue to refer to Figure 3 As shown, in addition to the above structure, a sealing ring 70 is provided between the wind cover 40 and the plastic housing 10 in this application. In this way, it can be ensured that there is a strong sealing performance between the wind cover 40 and the plastic housing 10, and air leakage can be avoided when the air inlet passage 41 is ventilated.

[0040] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0041] The above embodiments are only for illustrating the technical concept and features of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it accordingly. It is not intended to limit the protection scope of the present application. Any equivalent transformation or modification made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A high-voltage brushless fan structure, characterized in that: include: A plastic housing (10), wherein a heat sink (11) is installed inside the plastic housing (10); A vacuum cleaner motor (20), wherein the impeller cover of the vacuum cleaner motor (20) is mounted on the bottom of the plastic housing (10); A driving plate (30), wherein the driving plate (30) is mounted inside the plastic housing (10) above the heat sink (11); The wind shield (40) is mounted on the top of the plastic shell (10), and an air inlet passage (41) is axially opened inside the wind shield (40).

2. A high-pressure brushless fan structure according to claim 1, characterized in that: The outer ring of the plastic housing (10) is provided with two through slots (12) for lead wires, and rubber sealing blocks (50) are embedded inside the two through slots (12). The two rubber sealing blocks (50) are respectively provided with a plurality of through holes (51) for the wires to pass through.

3. A high-pressure brushless fan structure according to claim 1, characterized in that: A plurality of L-shaped columns (14) are evenly formed on the inner bottom surface of the plastic housing (10); a snap-fit ​​tongue (141) is integrally provided on one side of the vertical portion of the L-shaped column (14) pointing toward the center of the plastic housing (10); and the heat sink (11) is placed on the lateral portions of the plurality of L-shaped columns (14) and snap-fitted via the plurality of snap-fit ​​tongues (141).

4. A high-pressure brushless fan structure according to claim 1, characterized in that: A plurality of first screw hole columns (15) are uniformly formed on the inner bottom surface of the plastic shell (10), and the plurality of first screw hole columns (15) and the plurality of L-shaped columns (14) are staggered. A plurality of U-shaped grooves (31) are uniformly opened at the edge of the driving plate (30), and a plurality of screws (60) are locked on the driving plate (30) and pass through the U-shaped grooves (31) to the first screw hole columns (15) to be fixed to the plastic shell (10).

5. A high-pressure brushless fan structure according to claim 1, characterized in that: The impeller cover of the vacuum cleaner motor (20) is interference-fitted on the bottom of the plastic housing (10).

6. A high-pressure brushless fan structure according to claim 1, characterized in that: The outer ring of the plastic shell (10) is uniformly formed with a plurality of inner grooves (13), and the inner ring of the wind cover (40) is uniformly formed with a plurality of second screw hole columns (16). Screws (60) are locked into the inner grooves (13) and into the second screw hole columns (16) to fix the wind cover (40) and the plastic shell (10).

7. A high-pressure brushless fan structure according to claim 1, characterized in that: A sealing ring (70) is provided between the wind cover (40) and the plastic shell (10).

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