Motor mounting structure and ceiling machine

Abstract

The invention provides a motor mounting structure and a ceiling machine, the motor mounting structure comprises a chassis mounted on a wall or a ceiling, and the middle position of the chassis is provided with an avoiding hole; the motor fixing plate is located on the side, close to the wall or the ceiling, of the base plate, the motor fixing plate is arranged at the receding hole and detachably connected with the base plate, a motor is installed on the motor fixing plate, and the motor penetrates through the receding hole to drive a wind wheel assembly to rotate; and the damping element is positioned between the motor fixing plate and the chassis and is used for absorbing vibration generated by the motor. According to the motor mounting structure and the ceiling machine, the resonance sound of the chassis can be effectively reduced, meanwhile, the motor fixing plate and the motor can be directly disassembled from the position above the chassis during maintenance, the maintenance efficiency is improved by 80% or above, and the after-sales maintenance efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a motor mounting structure and a ceiling unit. Background Art

[0002] A ceiling unit is a ceiling embedded air conditioner, also known as a ceiling unit, a patio unit or an embedded air conditioner. It has the advantages of good heating / cooling effect and a wide radiation area. It is currently favored by users in larger spaces such as shopping malls, large venues, and office buildings.

[0003] In the prior art, the motor of the ceiling fan is usually fixed directly on the chassis, and then the chassis foam, evaporator, wind wheel assembly, water tray, electric control box and other structures are installed in sequence, such as Figure 1-3 However, this assembly method has the following shortcomings:

[0004] 1. Noise risk: The motor is fixed to the chassis by bolts, which is prone to noise transmission and chassis resonance sound, resulting in poor customer experience;

[0005] 2. Assembly risks: Since the chassis is large, if the bolts are directly welded in the middle of the chassis, a large-tonnage welding machine must be used; after the bolts are placed in the welding tooling, the employee holds the chassis by hand, and it is difficult to ensure the level of the chassis due to the distance from the welding point, resulting in poor assembly accuracy and difficulty in operation;

[0006] 3. Disassembly and assembly efficiency: If you need to replace the motor, most of the accessories need to be removed and then reassembled in order after replacement, which makes the installation efficiency extremely low.

[0007] In view of this, the present invention is proposed. Summary of the invention

[0008] The problem solved by the present invention is that the existing motor installation structure is unreasonable, which makes the motor disassembly and assembly operation complicated and easily generates resonance noise with the chassis, resulting in poor user experience.

[0009] In order to solve the above problems, the present invention provides a motor installation structure, comprising:

[0010] A chassis is installed on a wall or a ceiling, and a avoidance hole is arranged in the middle of the chassis;

[0011] A motor fixing plate is located on a side of the chassis close to the wall or ceiling, the motor fixing plate is arranged at the avoidance hole and is detachably connected to the chassis, a motor is installed on the motor fixing plate, and the motor passes through the avoidance hole to drive the wind wheel assembly to rotate;

[0012] The shock absorbing element is located between the motor fixing plate and the chassis and is used for absorbing the vibration generated by the motor.

[0013] The motor mounting structure described in the present application can effectively reduce the chassis resonance sound. At the same time, during maintenance, the motor fixing plate and the motor can be directly removed from the top of the chassis, thereby increasing the maintenance efficiency by more than %, and greatly improving the after-sales maintenance efficiency. After assembly, the motor fixing plate is located above the chassis, and the outer edge of the motor fixing plate overlaps the chassis to evenly apply the gravity of the motor to the chassis, thereby achieving good reliability.

[0014] Preferably, the chassis includes a first rib protruding toward one side of the wind wheel assembly, the first rib is annular and located on the outer peripheral side of the avoidance hole, and a plurality of fourth ribs are arranged on the first rib, the fourth ribs protrude toward one side of the motor fixing plate and are distributed at equal intervals along the peripheral side of the avoidance hole.

[0015] This setting can not only strengthen the position of the avoidance hole, but also the fourth convex rib can limit and guide the installation position of the motor fixing plate, thereby improving the assembly efficiency between the motor fixing plate and the chassis; at the same time, by setting the first convex rib and the fourth convex rib, the chassis's anti-deformation ability can be improved to ensure that the chassis is always in a horizontal state after being installed on the wall or ceiling, and the force in all directions is uniform and the service life is long; in addition, the resonance sound of the chassis can be effectively reduced, and the operating noise is small.

[0016] Preferably, a nut is provided on the first rib, and the nut is assembled with the first rib by riveting to fix the motor fixing plate.

[0017] After assembly, the outer edge of the motor fixing plate overlaps the chassis so that the gravity of the motor acts evenly on the chassis, and the contact area between the motor fixing plate and the chassis is mostly softly connected through the shock-absorbing element, and the connection between the nut and the motor fixing plate is only used to prevent it from shifting in the horizontal direction. It has a good shock-absorbing effect and can effectively ensure the connection reliability and installation strength.

[0018] Preferably, the motor fixing plate includes a connected assembly plate, a connecting plate, and a base plate. The assembly plate is provided with a first mounting hole for connecting to the chassis. The base plate is provided with a first bulge, which is formed by the base plate portion protruding toward one side of the assembly plate. The first bulge is provided with a second mounting hole for fixedly assembling the motor.

[0019] This setting can increase the structural strength of the motor fixing plate and prevent it from twisting and deforming. The three first mounting holes on the assembly plate are through holes for bolt installation when connected to the chassis, and the internal through holes are pump foot bolt holes for fixing the motor. The motor fixing plate reserves multiple holes for the pump foot bolt holes to meet the installation requirements of motors of different specifications; after the pump foot bolts are spot welded on the motor fixing plate, it is sent to the final assembly in the form of components for subsequent production and assembly.

[0020] Preferably, a second convex bump is provided on the first convex bump, the second convex bump is formed by the first convex bump portion protruding away from the chassis, and a reinforcing rib is provided on the first convex bump, and the reinforcing rib is multiple and distributed along the circumference of the first convex bump. This arrangement can further increase the structural strength of the motor fixing plate by adding a convex bump profile, avoid its distortion and deformation, and has a good shock absorption effect.

[0021] The present invention also provides a ceiling machine, comprising the above-mentioned motor mounting structure and a surrounding frame, wherein the edge of the chassis is provided with a folded edge, and the folded edge extends to a side away from the motor fixing plate for fixed assembly with the surrounding frame.

[0022] Preferably, the ceiling machine further comprises a wind wheel assembly, the wind wheel assembly comprises a wind blade, the wind blade comprises a wind blade housing, the wind blade housing comprises a pressure surface and a suction surface, and a latch is arranged on the trailing edge of the wind blade housing. By arranging the latch on the trailing edge of the wind blade housing, the airflow at the air outlet can be stabilized, thereby improving the user experience.

[0023] Preferably, a silencer notch is provided on the trailing edge of the fan blade housing, and the silencer notch is located below the latching teeth. By providing the silencer notch, the airflow noise can be further reduced, the noise performance of the device can be improved, and the user experience can be enhanced.

[0024] Preferably, a shaft sleeve is fixedly assembled on a side of the wind wheel assembly away from the motor, a motor shaft of the motor is arranged through the shaft sleeve, an assembly hole is arranged on the side of the shaft sleeve, a locking member is limitedly assembled to the assembly hole and abuts against the motor shaft to realize the driving connection between the motor and the wind wheel assembly.

[0025] The present application can realize the driving connection between the motor and the wind wheel assembly through a locking piece, and requires few parts. At the same time, the end of the motor shaft does not need to be flattened, avoiding the alignment of the flat part during the installation process, thereby greatly improving the assembly efficiency.

[0026] Preferably, a baffle is provided on the motor shaft, a limiting groove is provided above the baffle, the baffle abuts against the shaft sleeve or the wind wheel assembly, and the free end of the locking member is limitedly assembled into the limiting groove.

[0027] The present application can constrain the assembly position of the motor shaft and the wind wheel assembly through the baffle, and at the same time can constrain the relative position of the motor shaft in the direction of its central axis through the limit groove to prevent slipping, so that the transmission is stable and more reliable.

[0028] Compared with the prior art, the motor mounting structure and ceiling machine described in the present invention have the following beneficial effects: 1) The motor mounting structure described in the present application can effectively reduce the resonance sound of the chassis. At the same time, the motor fixing plate and the motor can be directly removed from the top of the chassis during maintenance, which improves the maintenance efficiency by more than 80%, greatly improving the after-sales maintenance efficiency; 2) The contact area between the motor fixing plate and the chassis is mostly softly connected through the shock-absorbing element, and the connection between the nut and the motor fixing plate is only used to prevent it from shifting in the horizontal direction. It has a good shock-absorbing effect and can effectively ensure the connection reliability and installation strength; 3) The structure is simple and easy to produce and process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the ceiling machine described in the prior art;

[0030] Figure 2 It is a cross-sectional schematic diagram of the ceiling machine described in the prior art;

[0031] Figure 3 It is a side view of the motor mounting structure described in the prior art;

[0032] Figure 4 This is an exploded schematic diagram of the motor installation structure according to Embodiment 1 of the present invention;

[0033] Figure 5 This is a schematic diagram of the assembly of the motor mounting structure described in Example 1 of the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of the chassis described in Example 1 of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the motor fixing plate described in Example 1 of the present invention;

[0036] Figure 8 This is a schematic structural diagram of the wind wheel assembly according to Embodiment 1 of the present invention;

[0037] Fig. 9 This is another structural schematic diagram of the ceiling machine described in Example 2 of the present invention;

[0038] Fig.10 This is a schematic diagram of the partial assembly of the motor and the wind wheel assembly according to Embodiment 2 of the present invention;

[0039] Fig.11 This is a schematic diagram of the structure of the motor described in Example 2 of the present invention;

[0040] Fig.12 This is a schematic diagram of the structure of the locking member described in Example 2 of the present invention;

[0041] Fig.13 This is an overall schematic diagram of the wind wheel assembly described in Example 3 of the present invention;

[0042] Fig.14 This is a cross-sectional schematic diagram of the wind wheel assembly described in Example 3 of the present invention;

[0043] Fig.15 This is a schematic side view of the structure of the fan blade described in Example 3 of the present invention;

[0044] Fig.16 This is a schematic diagram of the structure of the fan blade according to Embodiment 3 of the present invention from a second viewing angle;

[0045] Fig.17 This is a schematic diagram of the structure of the fan blade according to Embodiment 3 of the present invention from a third viewing angle;

[0046] Fig.18 This is a schematic diagram of the size identification structure of the notch structure on the fan blade according to Embodiment 3 of the present invention;

[0047] Fig.19 It is a fixed frequency curve diagram of the motor installation structure of the prior art and the present invention;

[0048] Fig. 20 It is a noise test spectrum diagram of the motor installation structure of the prior art and the present invention under different windshields.

[0049] Description of reference numerals:

[0050] 1-wind wheel assembly; 11-wheel hub; 12-bottom plate; 13-guide ring; 14-fan blade; 1401-leading edge; 1402-trailing edge; 1403-upper edge; 1404-lower edge; 141-fan blade housing; 1411-pressure surface; 1412-suction surface; 142-silencing notch; 1421-notch guide surface; 143-convex point; 144-grip; 15-air outlet; 2-motor; 21-motor shaft; 22-blocking piece; 23-limiting groove; 24-sleeve; 241-assembly hole; 3-locking piece; 31-nut part; 311-recess Groove; 32-stud part; 321-external thread; 322-abutment part; 4-chassis; 41-avoidance hole; 42-first convex rib; 43-second convex rib; 44-third convex rib; 45-fourth convex rib; 46-folded edge; 47-fifth convex rib; 48-nut; 5-motor fixing plate; 51-assembly plate; 52-connecting plate; 53-base plate; 54-first convex bump; 55-second convex bump; 56-first mounting hole; 57-second mounting hole; 58-reinforcement rib; 6-shock absorbing element; 7-electrical control box; 8-water receiving tray; 9-enclosing frame; 10-evaporator. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that the technical features in the embodiments of the present invention can be combined with each other without conflict.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] Unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. A first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] Usually, the motor 2 of the ceiling machine is directly fixed on the chassis 4, and then the chassis foam, evaporator 10, wind wheel assembly 1, water tray 8, electric control box 7 and other structures are installed in sequence. When the motor 2 needs to be replaced, the unreasonable structure above leads to cumbersome disassembly and assembly of the motor 2 and low maintenance efficiency. For this reason, the applicant proposes the following technical solution:

[0055] Example 1

[0056] like Figure 4-8 As shown, a motor mounting structure includes:

[0057] A chassis 4 is installed on a wall or a ceiling, and a avoidance hole 41 is provided in the middle of the chassis 4;

[0058] The motor fixing plate 5 is located at a side of the chassis 4 close to the wall or ceiling. The motor fixing plate 5 is arranged at the avoidance hole 41 and is detachably connected to the chassis 4. The motor 2 is installed on the motor fixing plate 5. The motor 2 passes through the avoidance hole 41 to drive the wind wheel assembly 1 to rotate.

[0059] The shock absorbing element 6 is located between the motor fixing plate 5 and the chassis 4 and is used to absorb the vibration generated by the motor 2 .

[0060] The motor mounting structure described in the present application can effectively reduce the resonance sound of the chassis 4. At the same time, during maintenance, the motor fixing plate 5 and the motor 2 can be directly removed from the top of the chassis 4, and the maintenance efficiency is improved by more than 80%, which greatly improves the after-sales maintenance efficiency. After assembly, the motor fixing plate 5 is located above the chassis 4, and the outer edge of the motor fixing plate 5 overlaps the chassis 4 to evenly apply the gravity of the motor 2 to the chassis 4, and the reliability is good.

[0061] As an example of the present invention, the shock absorbing element 6 is a shock absorbing rubber ring. It should be noted that, in order to prevent the power line from affecting the disassembly of the motor 2, a plug-in terminal assembly is provided on the power line between the motor 2 and the electric control box 7. After disassembling the assembly structure of the motor 2 and the wind wheel assembly 1, the motor fixing plate 5 is removed and the male and female plug-in terminals are unplugged, so that the motor 2 and the motor fixing plate 5 can be completely disassembled from the ceiling machine, which greatly improves the disassembly and assembly efficiency.

[0062] As a preferred example of the present invention, the chassis 4 includes a first rib 42 protruding toward one side of the wind wheel assembly 1, the first rib 42 is annular and is located on the outer peripheral side of the avoidance hole 41, and a plurality of fourth ribs 45 are arranged on the first rib 42, the fourth ribs 45 protrude toward one side of the motor fixing plate 5 and are distributed at equal intervals along the peripheral side of the avoidance hole 41.

[0063] This arrangement can not only strengthen the position of the avoidance hole 41, but also the fourth convex rib 45 can limit and guide the installation position of the motor fixing plate 5, thereby improving the assembly efficiency between the motor fixing plate 5 and the chassis 4; at the same time, by setting the first convex rib 42 and the fourth convex rib 45, the deformation resistance of the chassis 4 can be improved, ensuring that the chassis 4 is always in a horizontal state after being installed on the wall or ceiling, and the force in all directions is uniform and the service life is long; in addition, the resonance sound of the chassis 4 can be effectively reduced, and the operating noise is small.

[0064] As a preferred example of the present invention, the first convex rib 42 is provided with a nut 48, and the nut 48 and the first convex rib 42 are assembled by riveting to fix the motor fixing plate 5. After assembly, the outer edge of the motor fixing plate 5 overlaps the chassis 4 so that the gravity of the motor 2 acts evenly on the chassis 4, and the contact area between the motor fixing plate 5 and the chassis 2 is mostly softly connected through the shock absorbing element 6, and the connection between the nut 48 and the motor fixing plate 5 is only used to prevent it from shifting in the horizontal direction, which has a good shock absorbing effect and can effectively ensure the connection reliability and installation strength.

[0065] As a preferred example of the present invention, the chassis 4 includes a second convex rib 43 and a third convex rib 44, the second convex rib 43 has a plurality of ribs and is radially distributed along the circumference of the first convex rib 42, one end of the third convex rib 44 is located on the first convex rib 42, and the other end of the third convex rib 44 is located on the second convex rib 43. This arrangement enables the first convex rib 42, the second convex rib 43, and the third convex rib 44 to form an organic whole, and at the same time enables the force generated by the motor fixing plate 5 to act evenly on the chassis 4, and the chassis 4 has good anti-deformation ability.

[0066] As a preferred example of the present invention, the chassis 4 further includes a plurality of fifth ribs 47, which are located between adjacent fourth ribs 45 and are evenly spaced along the periphery of the first rib 42. This arrangement can strengthen the connection of the fourth ribs 45 to ensure the overall strength of the chassis 4. Preferably, the fifth ribs 47 are arranged symmetrically along the third ribs 44. This arrangement makes the overall appearance of the chassis 4 beautiful, increases the rigidity of the chassis 4 to reduce vibration, and further reduces the generation of noise.

[0067] It should be noted that a folded edge 46 is provided on the edge of the chassis 4 , and the folded edge 46 extends to a side away from the motor fixing plate 5 for being fixedly assembled with the surrounding frame 9 .

[0068] like Figure 6 The motor fixing plate 5 includes a connected assembly plate 51, a connecting plate 52, and a base plate 53. The assembly plate 51 is provided with a first mounting hole 56 for connecting with the chassis 4. The base plate 53 is provided with a first convex bump 54. The first convex bump 54 is formed by the base plate 53 protruding toward one side of the assembly plate 51. The first convex bump 54 is provided with a second mounting hole 57 for fixing and assembling the motor 2.

[0069] This arrangement can increase the structural strength of the motor fixing plate 5 and prevent it from twisting and deforming. The three first mounting holes 56 on the assembly plate 51 are bolt mounting through holes when connected to the chassis 4, and the internal through holes are pump foot bolt holes for fixing the motor 2. The motor fixing plate 5 reserves multiple holes for the pump foot bolt holes to meet the installation requirements of motors 2 of different specifications; after the pump foot bolts are spot welded on the motor fixing plate 5, it is sent to the final assembly in the form of components for subsequent production and assembly.

[0070] Preferably, the circles where the assembly plate 51, the connection plate 52 and the base plate 53 are located are concentrically arranged, which allows the vibration generated by the motor 2 to be evenly transmitted to the chassis 4. At the same time, the installation area of ​​the shock-absorbing element 6 is large, and the shock-absorbing effect is good.

[0071] Preferably, a second convex bump 55 is provided on the first convex bump 54, and the second convex bump 55 is formed by the first convex bump 54 protruding toward a side away from the chassis 4. A reinforcing rib 58 is provided on the first convex bump 54, and a plurality of the reinforcing ribs 58 are distributed along the circumference of the first convex bump 54. By adding a convex bump press, the structural strength of the motor fixing plate 5 can be further increased, and the distortion and deformation thereof can be avoided, and the shock absorption effect is good.

[0072] When the ceiling machine is running, the chassis 4 is prone to force vibration after the motor 2 is started, and the vibration frequency of an object is related to the structure, mass, and center of gravity. When the vibration of the motor 2 is transmitted to the chassis 4, the split motor installation structure described in the present application can effectively change the vibration frequency after changing the transmission structure of the chassis 4 vibration, and effectively avoid 50Hz frequency doubling, so that the resonance noise value is also improved. Fig.19 , 20 .

[0073] according to Fig.19 It can be seen that the peak value of the motor mounting structure in the prior art is mostly around 50Hz multiple frequency, while the peak value of the present application can avoid 50Hz multiple frequency; it should be noted that Fig.19 The X-axis is the frequency in Hz, and the Y-axis is the fixed frequency vibration value. When the cusp of the curve in the figure coincides with 50Hz and its multiple frequency, it is the resonance point and resonance occurs. The existing motor installation structure and the present application were tested for noise, and the results are shown in Table 1. Fig. 20 Obviously, the motor installation structure of the present application has less noise under different windshields. Fig. 20 The X-axis is the noise frequency, and the Y-axis is the noise value. When the noise frequency is abnormally large at a certain value, that is, when there is an abnormal peak along the slope of the curve, it means that abnormal sound is generated in this frequency range.

[0074] Table 1 Noise comparison under different windshields

[0075]

[0076] Example 2

[0077] The present invention also provides a ceiling machine, including the above-mentioned motor mounting structure, and also includes a wind wheel assembly 1, the wind wheel assembly 1 is fixedly assembled with a shaft sleeve 24 on the side away from the motor 2, the motor shaft 21 of the motor 2 is arranged through the shaft sleeve 24, and the side of the shaft sleeve 24 is provided with an assembly hole 241, the locking member 3 is limitedly assembled to the assembly hole 241 and abuts against the motor shaft 21 to realize the driving connection between the motor 2 and the wind wheel assembly 1.

[0078] The present application can realize the driving connection between the motor 2 and the wind wheel assembly 1 through a locking member 3, and requires few parts. At the same time, the end of the motor shaft 21 does not need to be flattened, so as to avoid the alignment of the flattened part during the installation process, and greatly improve the assembly efficiency. The motor 2 is fixedly assembled on the chassis 4, and the assembly relationship between the two is the prior art, which will not be described in detail here.

[0079] As a preferred example of the present application, a baffle 22 is provided on the motor shaft 21, a limiting groove 23 is provided above the baffle 22, the baffle 22 abuts against the shaft sleeve 24 or the wind wheel assembly 1, and the free end of the locking member 3 is limitedly assembled into the limiting groove 23. The present application can constrain the assembly position of the motor shaft 21 and the wind wheel assembly 1 by the baffle 22, and at the same time, the limiting groove 23 can constrain the relative position of the motor shaft 21 in the direction of its central axis to prevent slipping, and the transmission is stable and more reliable.

[0080] Preferably, the central axis of the assembly hole 241 is perpendicular to the central axis of the motor shaft 21. Preferably, the free end of the locking member is interference-fitted with the side wall of the motor shaft 21, and the interference is greater than 0.5 mm. This arrangement makes it difficult for the motor shaft 21 to slip when the motor drives the wind wheel assembly to rotate, and can take into account both assembly difficulty and transmission reliability.

[0081] Preferably, the cross section of the limiting groove 23 is circular and is coaxially arranged with the motor shaft 21. A baffle is arranged in the limiting groove 23, and the baffle is arranged parallel to the motor shaft 21, and is used to abut against one side of the locking member 3. This arrangement can use the baffle to prevent the locking member and the sleeve from rotating relative to each other, further ensuring stable and reliable transmission.

[0082] As an example of the present application, the wind wheel assembly 1 includes a hub 11, a bottom plate 12, and a guide ring 13. The lower edge of the hub 11 extends to form the bottom plate 12. The bottom plate 12 is provided with a fan blade 14, and the fan blade 14 is plugged into the bottom plate 12. The upper end of the fan blade 14 is plugged into the guide ring 13. The guide ring 13 is provided with a through air inlet, and an air outlet 15 is formed between the bottom plate 12, the guide ring 13, and the fan blade 14. When the motor 2 drives the wind wheel assembly 1 to rotate, air enters from the air inlet of the guide ring 13, and finally exits from the air outlet 15, thereby realizing the circulation of airflow.

[0083] As a preferred example of the present application, the bottom plate 12 is provided with blade slots for installing and fixing the blades 14; the blade slots are evenly spaced along the circumference of the bottom plate 12. Preferably, the two ends of the blade 14 are respectively snap-fitted with the bottom plate 12 and the guide ring 13, and this arrangement makes the blade 14, the bottom plate 12, and the guide ring 13 a detachable structure, which facilitates the maintenance and assembly of the wind wheel assembly 1; of course, the blade 14 can also be fixed to the bottom plate 12 and the guide ring 13 by bonding to ensure a secure assembly.

[0084] As a preferred example of the present application, the hub 11 is partially protruding from the guide ring 13, the sleeve 24 is fixedly mounted on the hub 11 and is located above the guide ring 13, and the minimum distance M1 between the sleeve 24 and the guide ring 13 is 30-50 mm. This arrangement is convenient to operate and is easy to achieve locking with the motor shaft 21 and the wind wheel assembly 1.

[0085] The wind wheel assembly 1 includes a wind blade 14, and the wind blade 14 includes a wind blade housing 141. The wind blade housing 141 includes a pressure surface 1411 and a suction surface 1412. A latching tooth 144 is provided on the trailing edge 1402 of the wind blade housing 141. By providing the latching tooth 144 on the trailing edge 1402 of the wind blade housing 141, the airflow at the air outlet 15 can be stabilized, thereby improving the user experience.

[0086] Preferably, a silencer notch 142 is provided on the trailing edge 1402 of the fan housing 141, and the silencer notch 142 is located below the latching teeth 144. By providing the silencer notch 142, the airflow noise is further reduced, the noise performance of the device is improved, and the user experience is enhanced.

[0087] Example 3

[0088] like Figure 9-18 As shown, the present invention also provides a ceiling machine, including a wind wheel assembly 1, a motor 2, and a locking piece 3. The wind wheel assembly 1 is fixedly assembled with a shaft sleeve 24 on a side away from the motor 2. The motor 2 includes a motor shaft 21. The motor shaft 21 is arranged through the shaft sleeve 24. An assembly hole 241 is arranged on the side of the shaft sleeve 24. The locking piece 3 is limitedly assembled to the assembly hole 241 and abuts against the motor shaft 21 to realize the driving connection between the motor 2 and the wind wheel assembly 1.

[0089] The present application can realize the driving connection between the motor 2 and the wind wheel assembly 1 through a locking member 3, and requires few parts. At the same time, the end of the motor shaft 21 does not need to be flattened, so as to avoid the alignment of the flattened part during the installation process, and greatly improve the assembly efficiency. The motor 2 is fixedly assembled on the chassis 4, and the assembly relationship between the two is the prior art, which will not be described in detail here.

[0090] The fan blade 14 includes a fan blade shell 141, and the fan blade shell 141 includes a pressure surface 1411 and a suction surface 1412. A muffler notch 142 is provided on the trailing edge 1402 of the fan blade shell 141. In the present application, by providing the muffler notch 142 on the trailing edge 1402 of the fan blade shell 141, when the airflow passes through the trailing edge 1402, a vortex is formed, and the muffler notch 142 can reduce the size and intensity of the vortex, and at the same time reduce the pressure difference between the pressure surface 1411 and the suction surface 1412 at the trailing edge 1402 of the fan blade shell 141, so as to reduce the turbulence and resistance of the airflow, and help reduce the noise generated by the airflow near the trailing edge 1402 to improve the performance of the fan blade 14; by providing the muffler notch 142 on the trailing edge 1402 of the fan blade shell 141, the airflow noise is reduced, the noise performance of the device is improved, and the user experience is improved.

[0091] As a preferred example of the present application, the trailing edge 1402 of the fan blade housing 141 is streamlined from the upper edge 1403 to the lower edge 1404 , which tends to approach the leading edge 1401 , and the silencer notch 142 is arranged on the trailing edge 1402 close to the lower edge 1404 .

[0092] This arrangement helps to further reduce the vortex formed by the airflow around the trailing edge 1402, can more effectively guide the airflow and reduce the turbulent area, and because the position close to the lower edge 1404 on the trailing edge 1402 is usually where the airflow separates and turbulence is formed, by setting a silencer notch 142 in this area, the formation of turbulence can be interfered with, thereby achieving the purpose of reducing noise and improving the performance of the fan blade 14, and may also improve energy efficiency.

[0093] As a preferred example of the present application, the muffler notch 142 is arranged in an arc shape from the upper edge 1403 to the lower edge 1404, and the notch guide surface 1421 on the muffler notch 142 is arranged in an inclined shape from the end close to the trailing edge 1402 to the end close to the leading edge 1401. The overall structure is in an arc shape and the notch guide surface 1421 is arranged in an inclined shape, so that the airflow guided by the fan blade 14 can smoothly pass through the muffler notch 142, reducing the turbulence and resistance of the airflow, thereby reducing the noise level, and at the same time, it also helps to reduce the formation of vortices, improve the stability of the airflow, improve the efficiency of the fan blade 14, better control the flow of the airflow, and reduce the mechanism of generating noise, thereby improving the overall performance of the fan blade 14.

[0094] As a preferred example of the present application, the height of the lower end of the silencer notch 142 from the lower surface of the lower edge 1404 is H1, the height of the upper end of the silencer notch 142 from the lower surface of the lower edge 1404 is H2, the length of the edge of the center of the silencer notch 142 close to the trailing edge 1402 from the tail of the lower edge 1404 is L1, the length of the edge of the center of the silencer notch 142 close to the leading edge 1401 from the tail of the lower edge 1404 is L2, H1, H2, L1, L2 satisfy the following relationship: 5*(L2-L1)>H2-H1>2*(L2-L1), and the value range of H1 is 0.4L1~0.65L1.

[0095] Specifically, taking the lower section of the trailing edge 1402 of the fan blade 14 as a reference, the width of the muffler notch 142 between the leading edge 1401 and the trailing edge 1402 is the X direction, the height of the muffler notch 142 between the upper edge 1403 and the lower edge 1404 is the Y direction, the length of the muffler notch 142 in the X direction is 16mm-25mm, and the height in the Y direction is 8mm-38mm, specifically, L1=16.18mm, L2=24.36mm, H1=8.36mm, H2=38mm. The height and length parameters of the muffler notch 142 and the relationship between them may have an important impact on noise control. After simulation and experimental measurements, limiting the parameters within the above-defined range can achieve better results. On the one hand, the fan blade 14 formed in the end can have a larger air volume, ensuring the working efficiency of the fan blade 14. On the other hand, this setting helps to reduce airflow noise, and the wind noise can also be effectively controlled, thereby achieving a balance between noise control and the performance requirements of the fan blade 14.

[0096] As a preferred example of the present application, the locking member 3 includes a connected nut portion 31 and a stud portion 32, the cross section of the nut portion 31 is a regular hexagon, a groove 311 is provided at one end of the nut portion 31 away from the stud portion 32, the cross section of the groove 311 is a "cross" shape, and an external thread 321 is provided on the outer peripheral side of the stud portion 32 for threaded connection with the assembly hole 241. The end of the stud portion 32 away from the nut portion 31 gradually shrinks to form an abutment portion 322 for interference assembly with the motor shaft 21.

[0097] During assembly, force is applied through the nut portion 31 to gradually rotate the stud portion 32 into the assembly hole 241, and the abutment portion 322 abuts against the motor shaft 21; since the cross-sectional area of ​​the abutment portion 322 is extremely small, continued force is applied to make the abutment portion 322 and the motor shaft 21 interference fit, thereby eliminating the need to flatten the motor shaft 21, avoiding alignment of the flattened portion during installation, and greatly improving assembly efficiency.

[0098] As a preferred example of the present application, radially evenly distributed anti-loosening teeth are provided on one side of the nut portion 31 close to the stud portion 32, and the anti-loosening teeth are distributed along the radius direction of the circle where the nut portion 31 is located. The anti-loosening teeth include a vertical surface perpendicular to the nut portion 31 and an inclined surface with an angle A with the nut portion 31, and the angle A ranges from 5-15°. The inclined surfaces of each anti-loosening tooth are inclined in the same direction in any year. This setting requires a greater unscrewing force under the same tightening force, which effectively increases the difficulty of loosening the locking member 3, and the wind wheel mounting structure operates stably.

[0099] As a preferred example of the present application, the cut surface angle of the notch guide surface 1421 from the end close to the suction surface 1412 to the end close to the pressure surface 1411 is β, and the value range of β is 25° to 35°. Preferably, the value range of β is 28° to 30°. The fan blade 14 described in the present application optimizes the cut surface angle β of the silencer notch 142 to avoid or weaken the generation of vortices, improve the regularity and stability of airflow, further avoid the generation of airflow noise, and reduce the flow noise of airflow.

[0100] As a preferred example of the present application, a plurality of convex points 143 are provided on the pressure surface 1411 of the fan blade 14. Preferably, the convex points 143 are designed in a truncated cone shape, and the plurality of convex points 143 are evenly arranged on the pressure surface 1411. By providing a plurality of evenly arranged convex points 143 on the pressure surface 1411, the flow of the airflow can be disturbed, and the turbulence generation can be reduced, thereby achieving the purpose of reducing the airflow noise generated by the fan blade 14 during operation. At the same time, the presence of the convex points 143 also helps to control the separation of the airflow on the surface of the fan blade 14 to increase the wind force, thereby improving the purpose of noise control performance.

[0101] As a preferred example of the present application, a cavity is formed between the pressure surface 1411 and the suction surface 1412, and the pressure surface 1411 and the suction surface 1412 are integrally formed by blow molding. Forming a cavity and integrally forming by blow molding can increase the structural strength of the fan blade 14. This design can make the fan blade 14 more durable, especially under high-speed and high-load conditions. At the same time, the cavity formed between the pressure surface 1411 and the suction surface 1412 can absorb part of the noise vibration, reduce the noise transmitted to the outside, reduce the vibration and noise level of the fan blade 14, and reduce the generation and loss of vortex to improve the aerodynamic efficiency of the fan blade 14. In addition, through integral blow molding, the fan blade 14 can be manufactured more easily and economically, reducing the number of parts and the complexity of assembly.

[0102] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A motor mounting structure, characterized in that: include: A chassis (4) is installed on a wall or a ceiling, and a avoidance hole (41) is provided in the middle of the chassis (4); a motor fixing plate (5) located on a side of the chassis (4) close to the wall or ceiling, the motor fixing plate (5) being arranged at the avoidance hole (41) and being detachably connected to the chassis (4), the motor (2) being mounted on the motor fixing plate (5), and the motor (2) passing through the avoidance hole (41) to drive the wind wheel assembly (1) to rotate; The shock absorbing element (6) is located between the motor fixing plate (5) and the chassis (4) and is used to absorb the vibration generated by the motor (2).

2. The motor mounting structure according to claim 1, characterized in that: The chassis (4) comprises a first convex rib (42) protruding toward one side of the wind wheel assembly (1), the first convex rib (42) being annular and located on the outer peripheral side of the avoidance hole (41), a plurality of fourth convex ribs (45) being arranged on the first convex rib (42), the fourth convex ribs (45) protruding toward one side of the motor fixing plate (5) and being distributed at equal intervals along the peripheral side of the avoidance hole (41).

3. The motor mounting structure according to claim 2, characterized in that: The first convex rib (42) is provided with a nut (48), and the nut (48) and the first convex rib (42) are assembled by riveting to fix the motor fixing plate (5).

4. The motor mounting structure according to claim 1, characterized in that: The motor fixing plate (5) comprises a connected assembly plate (51), a connecting plate (52), and a base plate (53); the assembly plate (51) is provided with a first mounting hole (56) for connecting with the chassis (4); the base plate (53) is provided with a first convex bump (54); the first convex bump (54) is formed by a portion of the base plate (53) protruding toward one side of the assembly plate (51); the first convex bump (54) is provided with a second mounting hole (57) for fixing and assembling the motor (2).

5. The motor mounting structure according to claim 4, characterized in that: A second bulge (55) is arranged on the first bulge (54), and the second bulge (55) is formed by the first bulge (54) protruding toward a side away from the chassis (4). A reinforcing rib (58) is arranged on the first bulge (54), and the reinforcing rib (58) is multiple and distributed along the circumference of the first bulge (54).

6. A ceiling machine, characterized in that: The motor mounting structure comprises the motor mounting structure as claimed in any one of claims 1 to 5, and further comprises a surrounding frame (9), wherein a folded edge (46) is provided on the edge of the chassis (4), and the folded edge (46) extends to a side away from the motor fixing plate (5) for fixed assembly with the surrounding frame (9).

7. The ceiling machine according to claim 6, characterized in that: The ceiling machine also includes a wind wheel assembly (1), the wind wheel assembly (1) includes a wind blade (14), the wind blade (14) includes a wind blade shell (141), the wind blade shell (141) includes a pressure surface (1411) and a suction surface (1412), and a latching tooth (144) is provided on the trailing edge (1402) of the wind blade shell (141).

8. The ceiling machine according to claim 7, characterized in that: A sound-absorbing notch (142) is provided on the trailing edge (1402) of the fan blade housing (141), and the sound-absorbing notch (142) is located below the latching tooth (144).

9. The ceiling machine according to claim 6, characterized in that: A shaft sleeve (24) is fixedly mounted on a side of the wind wheel assembly (1) away from the motor (2); a motor shaft (21) of the motor (2) is arranged through the shaft sleeve (24); a mounting hole (241) is arranged on a side of the shaft sleeve (24); a locking member (3) is limitedly mounted in the mounting hole (241) and abuts against the motor shaft (21) to achieve a driving connection between the motor (2) and the wind wheel assembly (1).

10. The ceiling machine according to claim 9, characterized in that: A baffle (22) is arranged on the motor shaft (21), a limiting groove (23) is arranged above the baffle (22), the baffle (22) abuts against the shaft sleeve (24) or the wind wheel assembly (1), and the free end of the locking member (3) is limitedly assembled in the limiting groove (23).

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