Motor support and duct type air conditioner

Abstract

The utility model discloses a motor support and a ducted air conditioner in the technical field of ducted air conditioner motors, the motor support comprises a supporting piece and a hoop, the supporting piece comprises a bottom plate and a supporting part extending on the bottom plate, the bottom plate is vertically arranged, the extending far end of the supporting part is provided with an arc-shaped groove used for installing a bearing, and the hoop is arranged in the arc-shaped groove. Two open ends of an opening of the arc-shaped groove are arranged up and down in the vertical direction, a first connecting part and a second connecting part are arranged at the two open ends of the opening of the arc-shaped groove respectively, one end of the clamp is connected with the first connecting part, the other end of the clamp is connected with the second connecting part, and a bearing fixing hole is defined by the clamp and the arc-shaped groove. The inner surface of the open end below the arc-shaped groove is a bearing bottom supporting face used for forming the inner wall of the bearing fixing hole, and the vertical projection of the central axis of the bearing fixing hole falls into the bearing bottom supporting face. According to the utility model, the technical problems of large installation difficulty and low installation efficiency are solved, and the motor support and the duct type air conditioner which reduce the installation difficulty are provided.

Description

Technical Field

[0001] The utility model relates to the technical field of duct machine motors, in particular to a motor bracket and a duct machine. Background Art

[0002] Air conditioners are a common comfort device in modern households, and their internal structural design directly affects the performance, installation convenience and space utilization of the equipment. Ceiling-mounted indoor units, also known as duct units, are popular among consumers because they can be installed concealed and occupy less indoor space. Such duct units usually include a housing, a fan arranged in the housing, a heat exchanger, a water tray, a drainage pump and other components. The fan usually includes a motor, an impeller and a volute, and the motor is generally fixed in the housing with a motor bracket.

[0003] In order to ensure the compact structure of the duct machine and the formation of the air duct, the motor bracket is usually installed on a vertically arranged air duct mounting plate. The existing motor bracket includes a support member and a clamp. The support member includes a base plate and a support portion extending from the base plate. The extended distal end of the support portion is provided with an arc-shaped groove for installing a bearing. The two open ends of the arc-shaped groove opening are respectively provided with a first connecting portion and a second connecting portion. One end of the clamp is clamped with the first connecting portion, and the other end is connected to the second connecting portion. The clamp and the arc-shaped groove together form a bearing fixing hole.

[0004] When installing the motor in this structure, the arc-shaped groove is difficult to provide effective support for the motor because the opening direction of the arc-shaped groove is perpendicular to the air duct mounting plate. Therefore, the worker needs to support the motor with one hand to prevent the motor from slipping, and use the other hand to connect and tighten the clamp to the first connecting part and the clamp to the second connecting part. This two-handed operation method not only increases the labor intensity of the workers, but also increases the difficulty of the installation process due to the need for precise alignment and keeping the motor stable. The work efficiency is relatively low and needs to be further optimized to improve the overall installation efficiency and user experience. Utility Model Content

[0005] In order to solve the technical problems of greater installation difficulty and lower installation efficiency when installing a motor on an existing motor bracket, the utility model provides a motor bracket and a duct machine with reduced installation difficulty.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A motor bracket includes a support member and a clamp. The support member includes a base plate and a support portion extending from the base plate. The base plate is vertically arranged. An arc-shaped groove for installing a bearing is provided at the extended distal end of the support portion. The two open ends of the arc-shaped groove opening are arranged one above the other in the vertical direction. A first connecting portion and a second connecting portion are respectively provided at the two open ends of the arc-shaped groove opening. One end of the clamp is connected to the first connecting portion, and the other end is connected to the second connecting portion. The clamp and the arc-shaped groove together form a bearing fixing hole. The inner surface of the open end below the arc-shaped groove is a bearing bottom supporting surface for constituting an inner wall of the bearing fixing hole. The vertical projection of the central axis of the bearing fixing hole falls within the bearing bottom supporting surface.

[0008] It should be noted that the central axis of the motor shaft coincides with the central axis of the bearing fixing hole, and the center of gravity of the motor is located on the central axis of the motor shaft and the central axis of the bearing fixing hole.

[0009] Furthermore, a vertical projection of the central axis of the bearing fixing hole falls outside the upper open end.

[0010] Furthermore, two parallel supporting parts extend from the bottom plate, and the clamps installed on the two supporting parts are respectively the first clamp and the second clamp. A connecting arm is provided between the first clamp and the second clamp to form an integrated structure with the first clamp, the second clamp and the connecting arm.

[0011] Furthermore, a limit clip is provided at the bottom of the arc-shaped groove to prevent the motor from sliding along the axis direction of the motor shaft.

[0012] Furthermore, the first connecting part is provided with a clamping protrusion extending away from the second connecting part, the second connecting part is provided with a first through hole, one end of the clamp is provided with a clamping groove which is engaged with the clamping protrusion, and the other end is provided with a second through hole, studs are passed through the first through hole and the second through hole, one end of the stud is threadedly connected with a fastening nut, and the clamp is fixedly connected to the support part through the stud and the fastening nut.

[0013] Furthermore, the fastening nut is welded on the second connecting portion and corresponds to the first through hole.

[0014] Furthermore, the bottom plate has a first end, a second end and a middle portion connecting the first end and the second end along its length direction, the width of the first end and the second end is greater than the width of the middle portion, and the first end and the second end are respectively transitioned to the middle portion through an arc structure.

[0015] Furthermore, reinforcing ribs are provided on the bottom plate and the supporting part, and the reinforcing ribs include a groove structure and a protruding structure. The bottom plate and the supporting part both include a first surface and a second surface. The groove structure is provided on the first surface of the bottom plate and the supporting part, and the groove structure of the bottom plate is connected to the groove structure of the supporting part. The protruding structure is provided on the second surface of the bottom plate and the supporting part, and the position of the protruding structure corresponds to the groove structure, and the protruding structure of the bottom plate is connected to the protruding structure of the supporting part.

[0016] Furthermore, a plurality of mounting holes are provided on the bottom plate, and the mounting holes are located outside the vertical projection area of ​​the motor on the bottom plate.

[0017] The utility model also provides a duct machine, comprising any one of the above motor brackets.

[0018] The beneficial effects of the utility model are:

[0019] 1. The bottom plate of the motor bracket is set vertically, and the two open ends of the arc-shaped groove opening are arranged one above and one below. The inner surface of the open end below the arc-shaped groove is the bearing bottom support surface used to form the inner wall of the bearing fixing hole, ensuring that when the bearing is installed, the vertical projection of the central axis of the bearing fixing hole falls within the bearing bottom support surface. The slightly raised bearing bottom support surface applies a supporting force directed to the bottom plate to the bearing, so that the arc-shaped groove can directly support the bearing and prevent the motor from rolling out of the axial opening. Workers can dock, tighten and accurately align the clamp with the first connecting part and the clamp with the second connecting part with both hands. Such a design helps to place the motor shaft firmly in the arc-shaped groove, enhance the overall stability of the motor, reduce the risk of the motor slipping due to the center of gravity shift during installation, and improve the safety and convenience of installation.

[0020] 2. The vertical projection of the central axis of the bearing fixing hole falls outside the upper open end. This design makes the opening of the arc-shaped groove convenient for the placement of the motor shaft. When the outer peripheral side of the bearing needs to fit with the inner wall of the bearing fixing hole, in order to avoid installation interference, the arc-shaped groove opening is guaranteed to place the bearing. At the same time, this opening direction is also suitable for workers to exert force, making installation easy and convenient.

[0021] 3. Two parallel support parts are set on the bottom plate of the motor bracket, which are respectively equipped with a first clamp and a second clamp, and the two are connected as one through a connecting arm. This double support part forms a stable support for the motor on the basis of reducing manufacturing costs. The integrated clamp structure reduces the number of parts, enhances the clamping force and uniform distribution of the motor shaft, further improves the firmness of the motor installation, simplifies the assembly steps, and improves the installation efficiency.

[0022] 4. A limit card is set at the bottom of the arc groove. The limit card cooperates with the motor to prevent the motor from sliding along the motor axis. The setting of the limit card ensures the stable positioning of the motor and prevents the motor from deviating along the motor axis during operation, which affects the overall stability.

[0023] 5. The first connection part is provided with a protrusion extending in a direction away from the second connection part, the second connection part is provided with a first through hole, one end of the clamp is provided with a slot engaged with the protrusion, and the other end is provided with a second through hole. The protrusion and the slot are engaged with each other so that the support part and the clamp can be accurately preassembled together, and the clamp is fixed to the support part with a relatively small number of screws to reduce the number of screws used. Moreover, during assembly, since the clamp can be preassembled to the support part, the first through hole and the second through hole can be accurately aligned, thereby improving assembly accuracy, reducing deformation of the plate body caused by uneven force on the plate body due to misalignment of the first through hole and the second through hole, improving assembly accuracy, and achieving improved assembly efficiency and assembly quality.

[0024] 6. The fastening nut is directly welded on the second connecting part and corresponds to the first through hole, which saves the process of finding and aligning the fastening nut, avoids the risk of losing the fastening nut, further simplifies the installation process, and ensures the reliability and stability of the motor shaft fixation.

[0025] 7. The bottom plate is divided into a first end, a middle part and a second end along the length direction. The width of the two ends is greater than that of the middle part, and the transition is through an arc structure, which reduces the bottom plate consumables and forms a stable mechanical support frame, enhances the bending and torsional resistance of the bottom plate, is conducive to bearing the vibration and impact generated during the operation of the motor, and prolongs the service life of the motor bracket.

[0026] 8. Reinforcement ribs are added to the bottom plate and support part to improve the overall structural strength. The presence of reinforcement ribs can effectively disperse stress, prevent deformation or fracture caused by local stress concentration, and ensure that the motor bracket maintains good mechanical properties under various working conditions. The reinforcement ribs use a combination of groove structure and convex structure to improve the overall rigidity and fatigue resistance of the bracket, while reducing weight, achieving a balance between structural strength and lightweight design.

[0027] 9. Multiple mounting holes are set on the bottom plate, and they are located outside the vertical projection area of ​​the motor on the bottom plate. This layout avoids the installation interference problem between the installation tool and the motor, facilitates installation and fixation, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an exploded schematic diagram of the motor bracket of the utility model;

[0029] Figure 2 It is a schematic diagram of the assembly of the motor bracket of the utility model;

[0030] Figure 3 It is a structural schematic diagram of a support member;

[0031] Figure 4 is a top view of the support;

[0032] Figure 5 It is the relationship between the motor's center of gravity simulation line and the support;

[0033] Figure 6 is a side view of the support;

[0034] Figure 7 It is an exploded schematic diagram of the centrifugal fan, motor bracket and air duct mounting plate;

[0035] Figure 8 It is a three-dimensional schematic diagram of the centrifugal fan, motor bracket and air duct mounting plate;

[0036] Fig. 9 It is a three-dimensional schematic diagram of the duct machine;

[0037] Fig.10 It is an exploded schematic diagram of a duct machine;

[0038] Marked in the figure are, 1-base plate, 2-support part, 3-slot, 4-motor shaft, 5-motor, 6-first clamp, 7-second clamp, 8-connecting arm, 9-arc groove, 10-motor center of gravity simulation line, 11-limiting card, 12-first connecting part, 13-second connecting part, 14-clamping convexity, 15-first through hole, 16-second through hole, 17-stud, 18-fastening screw, 19-first end, 20-second end, 21-middle part, 22-arc structure, 23-groove structure, 24-protrusion structure, 25-mounting hole, 26-air duct mounting plate, 27-duct machine. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clearly expressed, the present invention is further described below in conjunction with the accompanying drawings.

[0040] First of all, it needs to be stated that the technical solutions of the embodiments of the present application are clearly and completely described. The described embodiments are part of the embodiments of the present application, rather than limitations of the present utility model. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present application.

[0041] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by terms such as “first”, “second”, “upper”, “lower”, “left”, “right”, “inner”, “outer”, “axial” or “radial” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They are not intended to indicate or imply that the device or element referred to must have a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0042] It should be noted that, in the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Reference Figures 1 to 10 The utility model provides a motor bracket and a duct machine.

[0044] In some embodiments, a motor bracket includes a support member and a clamp, the support member includes a base plate 1 and a support portion 2 extending from the base plate 1, the base plate 1 is vertically arranged, and an arc-shaped groove 9 for installing a bearing is provided at the extended distal end of the support portion 2, the two open ends of the arc-shaped groove 9 are arranged one above and one below in the vertical direction, and the two open ends of the arc-shaped groove 9 are respectively provided with a first connecting portion 12 and a second connecting portion 13, one end of the clamp is connected to the first connecting portion 12, and the other end is connected to the second connecting portion 13, the clamp and the arc-shaped groove 9 are combined to form a bearing fixing hole, the inner surface of the open end below the arc-shaped groove 9 is a bearing bottom support surface for constituting the inner wall of the bearing fixing hole, and the vertical projection of the central axis of the bearing fixing hole falls within the bearing bottom support surface.

[0045] It should be noted that the central axis of the motor shaft 4 coincides with the central axis of the bearing fixing hole, and the center of gravity 10 of the motor 5 is located on the central axis of the motor shaft and the central axis of the bearing fixing hole.

[0046] The inner surface of the open end below the arc-shaped groove 9 is the bottom support surface of the bearing, which is a component of the inner wall of the bearing fixing hole. At the same time, the vertical projection of the central axis of the bearing fixing hole falls within the bottom support surface of the bearing, so that the bottom support surface of the bearing is an arc surface with a certain arc. Since the bottom plate 1 is vertically installed on the air duct mounting plate 26, when the motor 5 is placed in the arc-shaped groove 9, the bottom support surface of the bearing has a component force pointing to the bottom plate 1 against the bearing, so that the motor 5 will not roll toward the opening of the arc-shaped groove 9, thereby achieving stable placement of the motor 5, allowing workers to tighten and install the clamp with both hands, without having to hold the motor 5 with one hand and install it with the other hand, thereby reducing the difficulty of installation and labor intensity.

[0047] In some embodiments, a vertical projection of a central axis of the bearing fixing hole falls outside the upper open end.

[0048] In some embodiments, two parallel supporting parts 2 extend from the base plate 1, and the clamps installed on the two supporting parts 2 are respectively a first clamp 6 and a second clamp 7. A connecting arm 8 is provided between the first clamp 6 and the second clamp 7, which is used to form an integrated structure with the first clamp 6, the second clamp 7 and the connecting arm 8.

[0049] In some embodiments, a limit card 11 is provided at the bottom of the arc groove 9 to prevent the motor 5 from sliding along the axis direction of the motor shaft 4. The limit card 11 is in contact with the motor 5 or the bearing and has a limiting effect on the motor 5.

[0050] In some embodiments, the first connecting portion 12 is provided with a clamping protrusion 14 extending away from the second connecting portion 13, the second connecting portion 13 is provided with a first through hole 15, one end of the clamp is provided with a clamping groove 3 which is engaged with the clamping protrusion 14, and the other end is provided with a second through hole 16, studs 17 are passed through the first through hole 15 and the second through hole 16, and one end of the stud 17 is threadedly connected with a fastening nut 18, and the clamp is fixedly connected to the support portion 2 through the stud 17 and the fastening nut 18.

[0051] In some embodiments, the fastening nut 18 is welded on the second connecting portion 13 and corresponds to the first through hole 15 .

[0052] In some embodiments, the base plate 1 has a first end 19, a second end 20 and a middle portion 21 connecting the first end 19 and the second end 20 along its length direction, the width of the first end 19 and the second end 20 is greater than the width of the middle portion 21, and the first end 19 and the second end 20 are respectively transitioned to the middle portion 21 through an arc structure 22.

[0053] In some embodiments, the bottom plate 1 and the support part 2 are provided with reinforcing ribs, the reinforcing ribs include a groove structure 23 and a protruding structure 24, the bottom plate 1 and the support part 2 both include a first surface and a second surface, the first surfaces of the bottom plate 1 and the support part 2 are provided with a groove structure 23, the groove structure 23 of the bottom plate 1 is connected to the groove structure 23 of the support part 2, the second surfaces of the bottom plate 1 and the support part 2 are provided with a protruding structure 24, the protruding structure 24 corresponds to the position of the groove structure 23, the protruding structure 24 of the bottom plate 1 is connected to the protruding structure 24 of the support part 2. For the reinforcing ribs, reinforcing ribs of ordinary structural shapes can also be selected, and generally reinforcing ribs of metal materials, such as steel, aluminum, copper, etc., are selected, generally strip-shaped plates or ribs, and reinforcing ribs formed by splicing multiple plates.

[0054] In some embodiments, a plurality of mounting holes 25 are formed on the base plate 1 , and the mounting holes 25 are located outside the vertical projection area of ​​the motor 5 on the base plate 1 .

[0055] The utility model also provides a duct machine, including a motor bracket of any of the above embodiments. The specific structure of the motor bracket refers to the above embodiments. Since the duct machine 27 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

Claims

1. A motor bracket, comprising a support member and a clamp, wherein the support member comprises a base plate (1) and a support portion (2) extending from the base plate (1), the base plate (1) being arranged vertically, an arc-shaped groove (9) for mounting a bearing is arranged at the extended distal end of the support portion (2), the two open ends of the arc-shaped groove opening are arranged one above the other in the vertical direction, a first connecting portion (12) and a second connecting portion (13) are respectively arranged at the two open ends of the arc-shaped groove opening, one end of the clamp is connected to the first connecting portion (12), and the other end is connected to the second connecting portion (13), the clamp and the arc-shaped groove (9) are enclosed to form a bearing fixing hole, wherein: The inner surface of the open end below the arc-shaped groove (9) is a bearing bottom support surface used to form the inner wall of the bearing fixing hole, and the vertical projection of the central axis of the bearing fixing hole falls within the bearing bottom support surface.

2. The motor bracket according to claim 1, characterized in that: The vertical projection of the central axis of the bearing fixing hole falls outside the upper open end.

3. The motor bracket according to claim 1, characterized in that: Two support parts (2) arranged in parallel extend from the bottom plate (1); the clamps installed on the two support parts (2) are respectively a first clamp (6) and a second clamp (7); a connecting arm (8) is arranged between the first clamp (6) and the second clamp (7) to form an integrated structure with the first clamp (6), the second clamp (7) and the connecting arm (8).

4. The motor bracket according to claim 1, characterized in that: A limit clamp (11) is arranged at the bottom of the arc-shaped groove (9) to prevent the motor from sliding along the motor axis direction.

5. The motor bracket according to claim 1, characterized in that: The first connecting portion (12) is provided with a clamping protrusion (14) extending in a direction away from the second connecting portion (13), the second connecting portion (13) is provided with a first through hole (15), one end of the clamp is provided with a clamping groove (3) for clamping with the clamping protrusion (14), and the other end is provided with a second through hole (16), studs (17) are inserted into the first through hole (15) and the second through hole (16), one end of the stud (17) is threadedly connected with a fastening nut (18), and the clamp is fixedly connected to the supporting portion (2) through the stud (17) and the fastening nut (18).

6. The motor bracket according to claim 5, characterized in that: The fastening nut (18) is welded on the second connecting portion (13) and corresponds to the first through hole (15).

7. The motor bracket according to claim 1, characterized in that: The bottom plate (1) has a first end (19), a second end (20) and a middle portion (21) connecting the first end (19) and the second end (20) along its length direction; the widths of the first end (19) and the second end (20) are greater than the width of the middle portion (21); and the first end (19) and the second end (20) are respectively transitioned to the middle portion (21) via an arc structure (22).

8. The motor bracket according to claim 1, characterized in that: The bottom plate (1) and the support portion (2) are provided with reinforcing ribs, the reinforcing ribs comprising a groove structure (23) and a protruding structure (24), the bottom plate (1) and the support portion (2) both comprising a first surface and a second surface, the first surfaces of the bottom plate (1) and the support portion (2) being provided with a groove structure (23), the groove structure (23) of the bottom plate (1) being connected to the groove structure (23) of the support portion (2), the second surfaces of the bottom plate (1) and the support portion (2) being provided with a protruding structure (24), the position of the protruding structure (24) being corresponding to the groove structure (23), the protruding structure (24) of the bottom plate (1) being connected to the protruding structure (24) of the support portion (2).

9. The motor bracket according to claim 1, characterized in that: A plurality of mounting holes (25) are provided on the bottom plate (1), and the mounting holes (25) are located outside the vertical projection area of ​​the motor on the bottom plate (1).

10. Duct machine, characterized by: The invention comprises a motor bracket as claimed in any one of claims 1 to 9.

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