Motor assembly and centrifugal fan

Abstract

The utility model discloses a motor assembly and a centrifugal fan. The motor assembly comprises a motor shell and a cover plate. An opening of the motor shell faces upwards, and a first branching part is arranged on the peripheral wall of the motor shell. The cover plate is located above the motor shell, and a second branching part is arranged on the peripheral wall of the cover plate and located above the first branching part. When the cover plate covers the motor shell to block the opening of the motor shell, the first branching part and the second branching part are connected in a buckled mode, and a plurality of branching grooves are formed between the first branching part and the second branching part. The plurality of lead-out wires respectively extend out of the motor shell through the plurality of branching grooves; as the cover plate and the motor shell are buckled and connected, when the outgoing line is pulled, the cover plate and the motor shell are connected stably and are not easy to loosen; and meanwhile, the procedure of adhering the cover plate to the motor shell is omitted, so that the cost is saved, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a motor component and a centrifugal fan. Background Art

[0002] The outer wall of the existing motor housing is usually provided with a notch so that the lead wires of the driving components inside the motor housing can extend out of the motor housing through the notch, and a lead wire groove is also provided to separate multiple lead wires, and finally a cover plate is covered and bonded to the motor housing to close the opening of the motor housing. This assembly method is not firm, and when the entire motor assembly is lifted by the lead wire, the lead wire groove easily lifts the cover plate and causes the cover plate to separate from the motor housing. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the utility model provides a motor assembly and a centrifugal fan.

[0004] In a first aspect, an embodiment of the utility model provides a motor assembly, the motor assembly comprising:

[0005] A motor housing with an opening facing upward, wherein the outer peripheral wall of the motor housing is provided with a first dividing line portion;

[0006] A cover plate is located above the motor housing, and a second dividing line portion is provided on an outer peripheral wall of the cover plate, and the second dividing line portion is located above the first dividing line portion;

[0007] When the cover plate is covered on the motor housing to block the opening of the motor housing, the first branching portion is buckled and connected with the second branching portion, and a plurality of branching grooves are formed between the first branching portion and the second branching portion.

[0008] The motor assembly according to the embodiment of the utility model has at least the following technical effects: a plurality of lead wires extend out of the motor housing through a plurality of branching grooves respectively; since the cover plate and the motor housing are snap-fitted together, when the lead wires are pulled, the connection between the cover plate and the motor housing is stable and not easy to loosen; at the same time, the process of bonding the cover plate to the motor housing is eliminated, and the need for a separate lead groove component is avoided, thereby saving costs and improving assembly efficiency.

[0009] According to some embodiments of the present utility model, a plurality of the branching grooves are provided at the upper end of the first branching portion, and the plurality of the branching grooves are spaced apart along the circumference of the motor housing.

[0010] According to some embodiments of the present utility model, a plurality of first wire pressing blocks are provided at the lower end of the second wire dividing portion, the plurality of first wire pressing blocks correspond one-to-one to the plurality of wire dividing grooves, and the first wire pressing blocks are inserted into the wire dividing grooves.

[0011] According to some embodiments of the utility model, the first branching part is provided with a limiting part, the second branching part is provided with a fastener, the lower end of the fastener is provided with a hook part, and the fastener is buckled and connected with the limiting part so that the upper end of the hook part abuts against the lower end of the limiting part.

[0012] According to some embodiments of the utility model, the motor housing is provided with a threaded hole, the cover plate is provided with a through hole, and the bolt is passed through the through hole and then threadedly connected with the threaded hole.

[0013] According to some embodiments of the utility model, the outer peripheral wall of the motor housing is provided with a plurality of connection parts, the plurality of connection parts are circumferentially distributed around the axis of the motor housing, and the connection parts are used to be connected to the volute.

[0014] According to some embodiments of the utility model, the connection portion is provided with a reinforcing rib, and the reinforcing rib is fixedly connected to the outer peripheral wall of the motor housing.

[0015] According to some embodiments of the present invention, a plurality of the branching grooves are provided at the lower end of the second branching portion, and the plurality of the branching grooves are circumferentially spaced around the axis of the motor housing.

[0016] According to some embodiments of the present utility model, a plurality of second wire pressing blocks are provided at the upper end of the first wire dividing portion, the plurality of second wire pressing blocks correspond one-to-one to the plurality of wire dividing grooves, and the second wire pressing blocks are inserted into the wire dividing grooves.

[0017] In a second aspect, an embodiment of the present utility model further provides a centrifugal fan, comprising a motor assembly according to an embodiment of the first aspect of the present utility model.

[0018] The centrifugal fan according to the embodiment of the utility model has at least the following technical effects: the centrifugal fan adopts the motor assembly, and multiple lead wires extend out of the motor housing through multiple branching grooves respectively; since the cover plate and the motor housing are snap-fitted and connected, when the lead wires are pulled, the connection between the cover plate and the motor housing is stable and not easy to loosen; at the same time, the process of bonding the rear cover plate to the motor housing is eliminated, which saves costs and improves assembly efficiency.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a schematic diagram of the structure of the motor assembly of some embodiments of the utility model;

[0022] Figure 2 is an exploded view of a motor assembly of some embodiments of the present utility model;

[0023] Figure 3 is a schematic diagram of the connection between the first branching part and the second branching part in some embodiments of the utility model;

[0024] Figure 4 This is another connection diagram of the first branching part and the second branching part in some embodiments of the utility model.

[0025] Figure Number:

[0026] Motor housing 100, first wire-dividing portion 110, wire-dividing groove 120, limiting portion 130, threaded hole 140, connecting portion 150, reinforcing rib 160, second wire-pressing block 170;

[0027] The cover plate 200 , the second line-dividing portion 210 , the first line-pressing block 220 , the fastener 230 , the hook portion 231 , the through hole 240 , and the bolt 250 . DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings.

[0033] According to some embodiments of the present invention, referring to Figures 1 to 3 The motor assembly includes a motor housing 100 and a cover plate 200. The opening of the motor housing 100 faces upward, and the outer peripheral wall of the motor housing 100 is provided with a first branching portion 110, and the motor housing 100 and the first branching portion 110 are integrally formed by injection molding. The cover plate 200 is located above the motor housing 100, and the outer peripheral wall of the cover plate 200 is provided with a second branching portion 210, and the cover plate 200 and the second branching portion 210 are integrally formed by injection molding. The second branching portion 210 is located above the first branching portion 110. When the cover plate 200 covers the motor housing 100 to block the opening of the motor housing 100, the first branching portion 110 is buckled and connected with the second branching portion 210, and a plurality of branching grooves 120 are formed between the first branching portion 110 and the second branching portion 210.

[0034] It is understandable that after the driving component is installed in the motor housing 100, the multiple lead wires connected to the driving component need to be extended out of the motor housing 100 to facilitate the connection of other electronic components. The multiple lead wires extend out of the motor housing 100 through multiple branching grooves 120 respectively to avoid the multiple lead wires being entangled together. Since the cover plate 200 and the motor housing 100 are snap-fitted and connected, when the lead wires are pulled, the connection between the cover plate 200 and the motor housing 100 is stable and not easy to loosen. At the same time, the process of bonding the cover plate 200 to the motor housing 100 is eliminated, and the need for a separate lead groove component is avoided, which saves costs and improves assembly efficiency.

[0035] According to some embodiments of the present invention, referring to Figure 2 and Figure 3 The upper end of the first branching portion 110 is provided with a plurality of branching grooves 120, and the plurality of branching grooves 120 are arranged at intervals along the circumference of the motor housing 100. In this embodiment, there are four branching grooves 120, and the number of the branching grooves 120 can be adjusted according to needs.

[0036] Furthermore, a plurality of first pressing blocks 220 are provided at the lower end of the second branching portion 210, and the plurality of first pressing blocks 220 correspond to the plurality of branching grooves 120 one by one, and the first pressing blocks 220 are inserted into the branching grooves 120. The first pressing blocks 220 inserted into the branching grooves 120 can play a role in positioning the first branching portion 110 and the second branching portion 210, and at the same time, compress the lead wires located in the branching grooves 120.

[0037] It should be noted that, refer to Figure 4In some embodiments, a plurality of branching grooves 120 are provided at the lower end of the second branching portion 210, and the plurality of branching grooves 120 are circumferentially spaced around the axis of the motor housing 100. A plurality of second pressing blocks 170 are provided at the upper end of the first branching portion 110, and the plurality of second pressing blocks 170 correspond to the plurality of branching grooves 120 one by one, and the second pressing blocks 170 are inserted into the branching grooves 120. The second pressing blocks 170 inserted into the branching grooves 120 can play a role in positioning the first branching portion 110 and the second branching portion 210, and at the same time, compress the lead wires located in the branching grooves 120.

[0038] It is understandable that when the first branching part 110 is provided with a branching groove 120, the second branching part 210 is correspondingly provided with a first wire pressing block 220. When the second branching part 210 is provided with a branching groove 120, the first branching part 110 is correspondingly provided with a second wire pressing block 170.

[0039] According to some embodiments of the present invention, referring to Figure 2 and Figure 3 The first branching part 110 is provided with a limiting part 130, and the second branching part 210 is provided with a fastener 230. The lower end of the fastener 230 is provided with a hook 231. The fastener 230 is buckled and connected with the limiting part 130 so that the upper end of the hook 231 abuts against the lower end of the limiting part 130. It can be understood that when the lead-out wire is pulled upward, the cover plate 200 is subjected to an upward force, and the hook 231 exerts an upward force on the limiting part 130, that is, the limiting part 130 reacts on the hook 231, so as to prevent the cover plate 200 and the motor housing 100 from being separated from each other, and ensure that the cover plate 200 and the motor housing 100 are stably connected.

[0040] According to some embodiments of the present invention, referring to Figure 2 The motor housing 100 is provided with a threaded hole 140 , the cover plate 200 is provided with a through hole 240 , the bolt 250 is passed through the through hole 240 and then threadedly connected with the threaded hole 140 , further enhancing the connection stability between the cover plate 200 and the motor housing 100 .

[0041] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The outer peripheral wall of the motor housing 100 is provided with a plurality of connecting parts 150, and the plurality of connecting parts 150 are circumferentially distributed around the axis of the motor housing 100. The motor housing 100 and the connecting parts 150 are integrally injection molded, and the connecting parts 150 are used to connect with the volute. The connecting parts 150 are provided with reinforcing ribs 160, and the reinforcing ribs 160 are fixedly connected to the outer peripheral wall of the motor housing 100, so as to improve the connection stability between the connecting parts 150 and the motor housing 100 and avoid the connection between the connecting parts 150 and the motor housing 100 from breaking.

[0042] In the description of this specification, the description with reference to the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A motor assembly, characterized in that: include: A motor housing (100) with an opening facing upward, wherein the outer peripheral wall of the motor housing (100) is provided with a first dividing line portion (110); A cover plate (200) is located above the motor housing (100); a second dividing line portion (210) is provided on the outer peripheral wall of the cover plate (200); and the second dividing line portion (210) is located above the first dividing line portion (110); When the cover plate (200) covers the motor housing (100) to block the opening of the motor housing (100), the first branching portion (110) and the second branching portion (210) are buckled and connected, and a plurality of branching grooves (120) are formed between the first branching portion (110) and the second branching portion (210).

2. The motor assembly according to claim 1, characterized in that: A plurality of the branching grooves (120) are provided at the upper end of the first branching portion (110), and the plurality of branching grooves (120) are arranged at intervals along the circumference of the motor housing (100).

3. The motor assembly according to claim 2, characterized in that: A plurality of first wire pressing blocks (220) are provided at the lower end of the second wire dividing portion (210), the plurality of first wire pressing blocks (220) correspond one-to-one to the plurality of wire dividing grooves (120), and the first wire pressing blocks (220) are inserted into the wire dividing grooves (120).

4. The motor assembly according to claim 1, characterized in that: The first branching portion (110) is provided with a limiting portion (130), and the second branching portion (210) is provided with a fastening member (230), and a hook portion (231) is provided at the lower end of the fastening member (230), and the fastening member (230) is fastened and connected with the limiting portion (130) so that the upper end of the hook portion (231) abuts against the lower end of the limiting portion (130).

5. The motor assembly according to claim 1, characterized in that: The motor housing (100) is provided with a threaded hole (140), the cover plate (200) is provided with a through hole (240), and the bolt (250) is passed through the through hole (240) and is then threadedly connected to the threaded hole (140).

6. The motor assembly according to claim 1, characterized in that The outer peripheral wall of the motor housing (100) is provided with a plurality of connection parts (150), the plurality of connection parts (150) are circumferentially distributed around the axis of the motor housing (100), and the connection parts (150) are used to be connected to a volute.

7. The motor assembly according to claim 6, characterized in that The connecting portion (150) is provided with a reinforcing rib (160), and the reinforcing rib (160) is fixedly connected to the outer peripheral wall of the motor housing (100).

8. The motor assembly according to claim 1, characterized in that A plurality of the branching grooves (120) are provided at the lower end of the second branching portion (210), and the plurality of branching grooves (120) are circumferentially spaced around the axis of the motor housing (100).

9. The motor assembly according to claim 8, characterized in that A plurality of second wire pressing blocks (170) are provided at the upper end of the first wire dividing portion (110), the plurality of second wire pressing blocks (170) correspond one-to-one to the plurality of wire dividing grooves (120), and the second wire pressing blocks (170) are inserted into the wire dividing grooves (120).

10. A centrifugal fan, characterized in that: The invention comprises a motor assembly as claimed in any one of claims 1 to 9.

Images