Motor assembly

Abstract

The utility model discloses a motor assembly which comprises a volute, a centrifugal wind wheel and a motor which are arranged in the volute, a junction box and active carbon filter assemblies which are respectively arranged at two ends of the centrifugal wind wheel, the activated carbon filter assembly comprises mounting covers capable of being buckled with the two ends of the volute respectively and filter elements arranged in the mounting covers, the junction box can be arranged on the side face or the bottom face of the volute, and a plurality of threaded holes capable of being mounted in the range hood from the top or the bottom are formed in the periphery of the outlet at intervals. The specific installation position of the volute is adjusted through the threaded hole, the motor assembly can be installed in the range hood from the top or the bottom, the structural rationality can be improved, follow-up maintenance operation is facilitated, electric wires and connectors are prevented from being exposed outside, safety is further improved, and the motor assembly belongs to the field of motor design.

Description

Technical Field

[0001] The utility model belongs to the field of motor design, and more specifically relates to a motor component. Background Art

[0002] An electric motor, commonly known as a motor, is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Based on their starting and operating methods, they can be categorized into capacitor-start single-phase asynchronous motors, capacitor-run single-phase asynchronous motors, capacitor-start-run single-phase asynchronous motors, and split-phase single-phase asynchronous motors. Furthermore, based on their control method, they can be divided into fixed-frequency motors and variable-frequency motors. Variable-frequency motors have seen a gradual increase in market share in recent years due to their higher efficiency and the maturity of semiconductor technology.

[0003] Currently, the installation method of the motor and range hood is relatively simple. It can only be installed on the top of the range hood, and the installation position of the corresponding junction box is relatively fixed, which is not convenient for subsequent repair and maintenance work from the bottom of the range hood. Utility Model Content

[0004] The main purpose of the utility model is to provide a motor assembly which facilitates the repair and maintenance of the range hood and further improves safety.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is:

[0006] A motor assembly includes a volute and a centrifugal impeller and a motor arranged in the volute. The volute is provided with an outlet for communicating with a range hood, and further includes a junction box and an activated carbon filter assembly respectively arranged at both ends of the centrifugal impeller. The activated carbon filter assembly includes a mounting cover that can be respectively engaged with the two ends of the volute and a filter element arranged in the mounting cover. The junction box can be arranged on the side or bottom of the volute, and a number of threaded holes are provided at intervals around the outlet that can be installed in the range hood from the top or bottom.

[0007] According to the first aspect embodiment of the present utility model, it also includes a limiting device for fixing the activated carbon filter assembly and the volute, and the limiting device includes locking members respectively arranged at both ends of the volute and at least three limiting protrusions arranged at the edge of the mounting cover.

[0008] According to the first aspect of the embodiment of the present utility model, the locking member includes a gap for the limiting protrusion to be inserted and a snap-fitting protrusion arranged at the entrance of the gap, and the thickness of the snap-fitting protrusion is greater than the width of the gap.

[0009] According to the first aspect embodiment of the present utility model, the volute includes a left volute and a right volute that are threadedly connected, and the left volute and the right volute are buckled together at the top to form the outlet, and the locking members are respectively located at corresponding positions of the left volute and the right volute.

[0010] According to the first embodiment of the present invention, at least two anti-rotation parts into which the limiting protrusion can be inserted are respectively provided on the left volute and the right volute.

[0011] According to the first embodiment of the present invention, shock-absorbing cotton is respectively provided on the top of the left volute and the top of the right volute.

[0012] According to the first embodiment of the present invention, the junction box includes a box body for fixedly connecting to the volute and a cover body that can be threadedly connected to the box body, and a cavity for accommodating wires and connectors is provided between the box body and the cover body.

[0013] According to the first aspect of the embodiment of the present utility model, a side of the box body away from the cover body is provided with a mounting arc surface that is consistent with the arc of the surface of the volute.

[0014] According to the first aspect of the embodiment of the present utility model, the activated carbon filter assembly further includes a clamping net provided in the mounting cover for fixing the filter element.

[0015] According to the first embodiment of the present invention, at least three buckles for fixing the card net are further provided in the mounting cover, and three grooves that can cooperate with the buckles are provided at intervals on the edge of the card net.

[0016] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0017] The utility model sets a junction box on the side or bottom of the volute, and provides a plurality of threaded holes at intervals around the outlet. Therefore, the specific installation position of the volute can be adjusted through the threaded holes according to the installation position of the junction box, and the motor assembly can be installed in the range hood from the top or bottom. This not only improves the rationality of the structure and facilitates subsequent maintenance operations, but also avoids the exposure of wires and connectors, thereby further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Attachment Figure 1 This is a schematic diagram of a junction box located in front of a volute according to an embodiment of the present invention;

[0020] Attachment Figure 2 This is a schematic diagram of a junction box located at the bottom of a volute according to an embodiment of the present invention;

[0021] Attachment Figure 3 This is an exploded view of an embodiment of the present invention;

[0022] Attachment Figure 4 This is a top view of a junction box located at the bottom of a volute according to an embodiment of the present invention;

[0023] Attachment Figure 5 This is a structural diagram of a mounting cover according to an embodiment of the present utility model;

[0024] Attachment Figure 6 This is a card network structure diagram of an embodiment of the utility model;

[0025] Attachment Figure 7 This is a structural diagram of the left volute of an embodiment of the present utility model;

[0026] Attachment Figure 8 This is a structural diagram of the right volute of an embodiment of the present utility model;

[0027] Attachment Figure 9 This is an exploded view of a junction box according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals 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 should not be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0033] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0034] Refer to the attached Figure 1 To the attached Figure 9 As shown, a motor assembly includes a volute 1, a centrifugal fan wheel 2, a motor 3, a junction box 4 and an activated carbon filter assembly 5 respectively arranged at both ends of the centrifugal fan wheel 2. The motor 3 is an AC or brushless variable frequency motor. The volute 1 includes a left volute 11 and a right volute 12 that are threaded together. After the left volute 11 and the right volute 12 are buckled together, the tops are formed to form an outlet for communicating with the range hood, and an installation cavity is formed inside. The centrifugal fan wheel 2 and the motor 3 are both arranged inside the volute 1. The tops of the left volute 11 and the right volute 12 are respectively provided with shock-absorbing cotton 8 to reduce vibration when installed on the range hood.

[0035] In one embodiment of the present invention, the junction box 4 can be arranged on the side or bottom of the volute 1. The junction box 4 includes a box body 41 for fixedly connected to the volute 1 and a cover body 42 that can be threadedly connected to the box body 41. A cavity for accommodating wires and connectors is provided between the box body 41 and the cover body 42. The side of the box body 41 away from the cover body 42 is provided with an installation arc surface 411 that is consistent with the curvature of the surface of the volute 1, thereby preventing the wires and connectors from being exposed, thereby improving safety.

[0036] In one embodiment of the present invention, a number of threaded holes 11 are provided at intervals around the outlet, which can be installed in the range hood from the top or bottom respectively, including four threaded holes 11 near the inner side of the outlet edge, which can be equipped with fixing nuts for fixing the motor assembly in the range hood from the top; and four threaded holes 11 on the outer side of the outlet edge are used to fix the motor assembly in the range hood from the bottom, thereby improving the rationality of the overall structure. According to the installation position of the junction box 4, the specific installation position of the motor assembly can be adjusted through the threaded holes 11, which facilitates subsequent repair and maintenance operations.

[0037] In one embodiment of the present invention, the activated carbon filter assembly 5 includes a mounting cover 51 that can be respectively engaged with the two ends of the volute 1, a filter element 52 arranged in the mounting cover 51, and a clamping net 53 arranged in the mounting cover 51 for fixing the filter element 52, and the filter element 52 is a filter element containing activated carbon components.

[0038] In one embodiment of the present invention, three buckles 9 for fixing the card net 53 are provided in the mounting cover 51, and three grooves 91 that can cooperate with the buckles 9 are provided at intervals along the edge of the card net 53. When installing the card net 53, the buckles 9 are passed through the grooves 91 respectively and then rotated counterclockwise or clockwise at an angle less than 33°. The buckles 9 can respectively clamp the edges of the card net 53 to ensure that the relative position between the card net 53 and the mounting cover 51 remains unchanged.

[0039] In one embodiment of the present invention, a limiting device is provided for fixing the activated carbon filter assembly 5 and the volute 1. The limiting device includes locking members 61 respectively provided at both ends of the volute 1 and three limiting protrusions 62 provided on the edge of the mounting cover 51. The locking members 61 are respectively located at corresponding positions of the left volute 11 and the right volute 12.

[0040] In one embodiment of the present invention, the locking member 61 includes a gap 611 for the limiting protrusion 62 to be inserted and a snap-fit protrusion 612 provided at the entrance of the gap 611. When assembling the mounting cover 51 and the volute 1, the limiting protrusion 62 is placed at the entrance of the gap 611 and rotated, thereby avoiding lateral displacement of the mounting cover 51 and the volute 1 after installation, thereby improving stability.

[0041] In one embodiment of the present invention, the thickness of the snap-fitting protrusion 612 is set to be greater than the width of the gap 611, so that after the mounting cover 51 and the volute 1 are screwed together, the relative positions of the two are guaranteed to remain unchanged, and a certain damping feeling is provided when the mounting cover 51 is disassembled, reminding workers to install the cover 51 in the correct disassembly rotation direction.

[0042] In one embodiment of the present invention, two anti-rotation parts 7 for inserting the limiting protrusions 62 are respectively provided on the left volute 11 and the right volute 12. After one of the limiting protrusions 62 is screwed into the gap 611 of the locking part 61, the other two limiting protrusions 62 are also immediately inserted into the corresponding anti-rotation parts 7, further increasing the stability of the activated carbon filter assembly 5 assembled on the volute 1.

[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 purpose 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 comprising a volute (1) and a centrifugal impeller (2) and a motor (3) arranged in the volute (1), wherein the volute (1) is provided with an outlet for communicating with a range hood, and wherein: The invention also includes a junction box (4) and an activated carbon filter assembly (5) respectively arranged at both ends of the centrifugal impeller (2), wherein the activated carbon filter assembly (5) includes a mounting cover (51) respectively engageable with both ends of the volute (1) and a filter element (52) arranged in the mounting cover (51); the junction box (4) can be arranged on the side or bottom surface of the volute (1); and a plurality of threaded holes (11) are provided at intervals around the outlet so as to be installed in the range hood from the top or bottom.

2. The motor assembly according to claim 1, wherein: It also includes a limiting device for fixing the activated carbon filter assembly (5) and the volute (1), the limiting device including locking members (61) respectively provided at both ends of the volute (1) and at least three limiting protrusions (62) provided on the edge of the mounting cover (51).

3. The motor assembly according to claim 2, wherein: The locking member (61) comprises a gap (611) for the limiting protrusion (62) to be inserted, and a buckling protrusion (612) provided at the entrance of the gap (611), wherein the thickness of the buckling protrusion (612) is greater than the width of the gap (611).

4. The motor assembly according to claim 2, wherein: The volute (1) comprises a left volute (11) and a right volute (12) connected by threads, the left volute (11) and the right volute (12) are buckled together at the top to form the outlet, and the locking member (61) is respectively located at the corresponding positions of the left volute (11) and the right volute (12).

5. The motor assembly according to claim 4, characterized in that: The left volute (11) and the right volute (12) are respectively provided with at least two anti-rotation parts (7) for the limiting protrusion (62) to be inserted.

6. The motor assembly according to claim 4, wherein: Shock-absorbing cotton (8) is respectively provided on the top of the left volute (11) and the top of the right volute (12).

7. The motor assembly according to claim 1, wherein: The junction box (4) comprises a box body (41) for fixedly connecting to the volute (1) and a cover body (42) threadably connected to the box body (41), and a cavity for accommodating wires and connectors is provided between the box body (41) and the cover body (42).

8. The motor assembly according to claim 7, wherein: A side of the box body (41) away from the cover body (42) is provided with a mounting arc surface (411) that is consistent with the arc of the surface of the volute (1).

9. The motor assembly according to claim 1, wherein: The activated carbon filter assembly (5) further comprises a clamping net (53) provided in the mounting cover (51) and used for fixing the filter element (52).

10. The motor assembly according to claim 9, characterized in that: At least three buckles (9) for fixing the clamping net (53) are further provided in the installation cover (51), and three grooves (91) capable of cooperating with the buckles (9) are provided at intervals on the edge of the clamping net (53).

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