Direct-current brushless variable-frequency motor for table type range hood

Abstract

The utility model discloses a direct current brushless variable frequency motor for a table type range hood, which comprises an installation module, a driving module and a control module, the driving module and the control module are both installed on the installation module, the installation module comprises a support, a sealing ring and a support bottom plate, the support comprises a first assembly and a second assembly which are integrally formed, and the first assembly and the second assembly are integrally formed. A first containing cavity is formed in the first assembly, and a second containing cavity is formed in the second assembly. According to the direct-current brushless variable-frequency motor for the table type range hood, linkage is carried out through the installation module, the driving module and the control module, the control module and the driving module are integrated on the installation module, and the direct-current brushless variable-frequency motor has the advantages of being high in integration level, stable in structure, small in occupied space and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of direct current brushless variable frequency motors, and in particular relates to a direct current brushless variable frequency motor for a desktop range hood. Background Art

[0002] With the improvement of the quality of life, tabletop range hoods are more and more widely used in home kitchens. However, the traditional range hood motor has a relatively simple structure, low integration, and large size, which occupies a large space during installation.

[0003] Therefore, further improvements are made to the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a brushless DC variable frequency motor for a desktop range hood, which is linked by an installation module, a drive module and a control module, and the control module and the drive module are integrated into the installation module, and has the advantages of high integration, stable structure and small space occupation.

[0005] In order to achieve the above purpose, the utility model provides a brushless DC variable frequency motor for a tabletop range hood, comprising a mounting module, a drive module and a control module, wherein the drive module and the control module are both mounted on the mounting module, wherein:

[0006] The mounting module comprises a bracket, a sealing ring and a bracket bottom plate, the bracket comprises an integrally formed first component and a second component, the first component is provided with a first accommodating cavity inside and the second component is provided with a second accommodating cavity inside, the first accommodating cavity and the second accommodating cavity are communicated; the first accommodating cavity is provided with a first bearing placement area and a second bearing placement area, the bracket bottom plate is fixedly mounted on a side of the second component away from the first component and the sealing ring is located between the bracket bottom plate and the second component;

[0007] The driving module comprises a stator core, a rotating shaft, a magnetic ring, a first bearing and a second bearing, the stator core is sleeved on the first component and the magnetic ring surrounds the stator core, the first end of the rotating shaft is located in the second accommodating cavity and the second end of the rotating shaft passes through the first accommodating cavity, the first bearing is installed in the first bearing placement area and the second bearing is installed in the second bearing placement area, and the first bearing and the second bearing are both sleeved on the rotating shaft;

[0008] The driving module further comprises a housing and a sleeve, the magnetic ring is fixedly mounted on the inner wall of the housing, the second end of the rotating shaft passes through the housing, the inner wall of the sleeve is sleeved and fixed on the second end of the rotating shaft, and the outer wall of the sleeve is fixedly connected to the housing;

[0009] The control module includes a control board and a connecting wire harness. The control board is built into the second accommodating cavity, and one end of the connecting wire harness is electrically connected to the control board.

[0010] As a further preferred technical solution of the above technical solution, the outer wall of the first component is provided with a plurality of mounting ridges and the inner wall of the stator core is provided with a plurality of mounting grooves, and the mounting ridges are installed in the mounting grooves.

[0011] As a further preferred technical solution of the above technical solution, the second component is provided with a wire harness mounting end and a wire crimping plate, and one end of the connecting wire harness is installed between the wire harness mounting end and the wire crimping plate.

[0012] As a further preferred technical solution of the above technical solution, the connecting wire harness is sleeved with a heat shrink tube.

[0013] As a further preferred technical solution of the above technical solution, the second component is provided with a plurality of connection holes (for installing and fixing the entire motor). BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a brushless DC variable frequency motor for a tabletop range hood.

[0015] Figure 2 The utility model is a cross-sectional view of a brushless DC variable frequency motor for a tabletop range hood.

[0016] Figure 3 The utility model is a structural schematic diagram of a brushless DC variable frequency motor for a tabletop range hood (with the outer shell hidden).

[0017] Figure 4 The utility model is a structural schematic diagram of a bracket of a brushless DC variable frequency motor for a desktop range hood.

[0018] Figure 5 The utility model is a structural schematic diagram of a bracket of a brushless DC variable frequency motor for a desktop range hood.

[0019] Figure 6 The utility model is an exploded view of a brushless DC variable frequency motor for a desktop range hood.

[0020] The reference numerals include: 100, mounting module; 110, bracket; 111, first component; 1111, first accommodating cavity; 1112, first bearing placement area; 1113, second bearing placement area; 1114, mounting convex strip; 112, second component; 1121, second accommodating cavity; 1122, wiring harness mounting end; 1123, wire pressing plate; 1124, connecting hole; 120, sealing ring; 130, bracket bottom plate; 200, drive module; 210, stator core; 211, mounting groove; 220, rotating shaft; 230, magnetic ring; 240, first bearing; 250, second bearing; 260, housing; 270, bushing; 300, control module; 310, control board; 320, connecting wiring harness; 330, heat shrink tube. DETAILED DESCRIPTION

[0021] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0022] The utility model discloses a DC brushless variable frequency motor for a tabletop range hood. The specific embodiments of the utility model are further described below in conjunction with preferred embodiments.

[0023] In the embodiments of the present invention, those skilled in the art will note that the tabletop range hood and the like involved in the present invention may be regarded as prior art.

[0024] Preferred embodiments.

[0025] like Figure 1-6 As shown, the utility model discloses a brushless DC variable frequency motor for a tabletop range hood, comprising a mounting module 100, a drive module 200 and a control module 300, wherein the drive module 200 and the control module 300 are both mounted on the mounting module 100, wherein:

[0026] The mounting module 100 includes a bracket 110, a sealing ring 120 and a bracket bottom plate 130. The bracket 110 includes an integrally formed first component 111 and a second component 112. The first component 111 is provided with a first accommodating cavity 1111 and the second component 112 is provided with a second accommodating cavity 1121. The first accommodating cavity 1111 is communicated with the second accommodating cavity 1121. The first accommodating cavity 1111 is provided with a first bearing placement area 1112 and a second bearing placement area 1113. The bracket bottom plate 130 is fixedly installed on a side of the second component 112 away from the first component 111 and the sealing ring 120 is located between the bracket bottom plate 130 and the second component 112.

[0027] The driving module 200 includes a stator core 210, a rotating shaft 220, a magnetic ring 230, a first bearing 240 and a second bearing 250. The stator core 210 is sleeved on the first component 111 and the magnetic ring 230 surrounds the stator core 210 (a gap is provided between the magnetic ring and the stator core). The first end of the rotating shaft 220 is located in the second accommodating cavity 1121 and the second end of the rotating shaft 220 passes through the first accommodating cavity 1111. The first bearing 240 is installed in the first bearing placement area 1112 and the second bearing 250 is installed in the second bearing placement area 1113. The first bearing 240 and the second bearing 250 are both sleeved on the rotating shaft 220.

[0028] The driving module 200 further includes a housing 260 and a sleeve 270, wherein the magnetic ring 230 is fixedly mounted on the inner wall of the housing 260, the second end of the rotating shaft 270 penetrates the housing 260, the inner wall of the sleeve 270 is sleeved and fixed on the second end of the rotating shaft 220, and the outer wall of the sleeve 270 is fixedly connected to the housing 260;

[0029] The control module 300 includes a control board 310 and a connection harness 320 . The control board 310 is built into the second accommodating cavity 1121 , and one end of the connection harness 320 is electrically connected to the control board 310 .

[0030] Specifically, the outer wall of the first component 111 is provided with a plurality of mounting ridges 1114 and the inner wall of the stator core 210 is provided with a plurality of mounting grooves 211 , and the mounting ridges 1114 are installed in the mounting grooves 211 .

[0031] Furthermore, the second component 112 is provided with a harness mounting end 1122 and a wire pressing plate 1123 , and one end of the connecting harness 320 is installed between the harness mounting end 1122 and the wire pressing plate 1123 .

[0032] More specifically, the connection harness 320 is sleeved with a heat shrink tube 330 .

[0033] Furthermore, the second component 112 is provided with a plurality of connection holes 1124 (for installing and fixing the entire motor).

[0034] For this utility model:

[0035] The control board drives after receiving the control command transmitted by the connection harness, and the stator core (wound with enameled wire) remains stationary, so that the magnetic ring rotates equivalent to the outer rotor. Since the magnetic ring is connected to the inner wall of the outer shell, the outer shell rotates. Since the outer shell is connected to the rotating shaft through the shaft sleeve, the rotating shaft is ultimately driven to rotate.

[0036] It is worth mentioning that the technical features such as the desktop range hood involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional methods in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0037] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A brushless DC variable frequency motor for a tabletop range hood, characterized in that: It includes an installation module, a driving module and a control module, wherein the driving module and the control module are both installed on the installation module, wherein: The mounting module comprises a bracket, a sealing ring and a bracket bottom plate, the bracket comprises an integrally formed first component and a second component, the first component is provided with a first accommodating cavity inside and the second component is provided with a second accommodating cavity inside, the first accommodating cavity and the second accommodating cavity are communicated; the first accommodating cavity is provided with a first bearing placement area and a second bearing placement area, the bracket bottom plate is fixedly mounted on a side of the second component away from the first component and the sealing ring is located between the bracket bottom plate and the second component; The driving module comprises a stator core, a rotating shaft, a magnetic ring, a first bearing and a second bearing, the stator core is sleeved on the first component and the magnetic ring surrounds the stator core, the first end of the rotating shaft is located in the second accommodating cavity and the second end of the rotating shaft passes through the first accommodating cavity, the first bearing is installed in the first bearing placement area and the second bearing is installed in the second bearing placement area, and the first bearing and the second bearing are both sleeved on the rotating shaft; The driving module further comprises a housing and a sleeve, the magnetic ring is fixedly mounted on the inner wall of the housing, the second end of the rotating shaft passes through the housing, the inner wall of the sleeve is sleeved and fixed on the second end of the rotating shaft, and the outer wall of the sleeve is fixedly connected to the housing; The control module includes a control board and a connecting wire harness. The control board is built into the second accommodating cavity, and one end of the connecting wire harness is electrically connected to the control board.

2. A brushless DC variable frequency motor for a tabletop range hood according to claim 1, characterized in that: The outer wall of the first component is provided with a plurality of mounting ridges and the inner wall of the stator core is provided with a plurality of mounting grooves, and the mounting ridges are installed in the mounting grooves.

3. A brushless DC variable frequency motor for a tabletop range hood according to claim 2, characterized in that: The second component is provided with a wire harness mounting end and a wire pressing plate, and one end of the connecting wire harness is mounted between the wire harness mounting end and the wire pressing plate.

4. A brushless DC variable frequency motor for a tabletop range hood according to claim 3, characterized in that: The connecting wire harness is sleeved with a heat shrink tube.

5. A brushless DC variable frequency motor for a tabletop range hood according to claim 4, characterized in that: The second component is provided with a plurality of connection holes.

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