Air conditioner motor mounting assembly and air conditioner

Abstract

The invention provides an air conditioner motor mounting assembly and an air conditioner, and relates to the technical field of air conditioners, the air conditioner motor mounting assembly comprises a base plate and a motor, the bottom of the motor is provided with a plurality of fixing pieces extending outwards, the middle of the base plate is annularly provided with a plurality of rotating buckles, each rotating buckle is arranged on the surface of the base plate in a protruding mode, and the rotating buckles are arranged on the base plate. The base plate is provided with a clamping cavity used for containing the fixing pieces, the two sides of the clamping cavity are provided with clamping openings and stopping inner walls which are opposite in the circumferential direction, the fixing pieces penetrate through the clamping openings, the stopping inner walls are used for stopping the fixing pieces, and the multiple fixing pieces are rotationally clamped into the rotary buckles in a one-to-one correspondence mode and detachably connected with the base plate. Compared with the prior art, the air conditioner motor mounting assembly provided by the embodiment of the invention has the advantages that the pre-fixation of the motor can be realized, the motor alignment step is simplified, the motor can be quickly and accurately aligned, and the problem of difficulty in motor alignment in the prior art is solved, so that the assembly efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner motor mounting assembly and an air conditioner. Background Art

[0002] Current ceiling indoor air conditioners usually require a DC motor to be installed on their chassis to drive the centrifugal fan blades. Conventional motors are simply fixed with multiple screws during installation. That is, multiple screw holes on the motor are aligned with multiple screw holes on the chassis and then the screws are inserted to fix them. However, the difficulty in aligning the screw holes leads to low efficiency when installing DC motors on the production line. Summary of the invention

[0003] The problem solved by the present invention is how to solve the installation alignment problem and improve the assembly efficiency.

[0004] To solve the above problems, the present invention adopts the following technical solutions.

[0005] On the one hand, the present invention provides an air conditioner motor mounting assembly, including a chassis and a motor, wherein a plurality of outwardly extending fixing plates are arranged at the bottom of the motor, a plurality of rotating buckles are arranged around the middle ring of the chassis, each of the rotating buckles is protruded from the surface of the chassis, and has a holding cavity for accommodating the fixing plate, the two sides of the holding cavity have circumferentially opposite holding openings and stop inner walls, the holding openings are used for the fixing plates to pass through, and the stop inner walls are used for stopping the fixing plates, and the plurality of fixing plates are rotated and snapped into the rotating buckles one by one, and are detachably connected to the chassis.

[0006] An air conditioner motor mounting assembly provided by an embodiment of the present invention is provided with a fixing plate extending outward at the bottom of the motor, and a plurality of rotating buckles are arranged in a ring in the middle of the chassis, each rotating buckle is provided with only a clamping cavity, and the two sides of the clamping cavity have a clamping opening and a stopper inner wall that are circumferentially opposite, the clamping opening is used for the fixing plate to pass through, and the stopper inner wall is used to stop the fixing plate, and the plurality of fixing plates are rotated and clamped into the rotating buckles one by one, and are detachably connected with the chassis. In actual installation, the motor can be first placed in the middle of the chassis, and the fixing plate is located outside the clamping opening, and then the motor is rotated so that the fixing plate can be rotated and loaded into the clamping opening, and the motor is continuously rotated until the fixing plate is against the inside of the stopper, at which time the motor is pre-fixed, and in this case, the fixing plate and the chassis are connected by screws, simplifying the motor alignment step. Compared with the prior art, the air conditioner motor mounting assembly provided by the embodiment of the present invention can realize the pre-fixation of the motor, simplify the motor alignment step, quickly and accurately align the motor, solve the problem of difficult motor alignment in the prior art, and thus greatly improve the assembly efficiency.

[0007] Furthermore, an elastic anti-slip buckle is protruding from the middle part of the chassis, and the elastic anti-slip buckle is arranged corresponding to at least one of the rotating buckles and can undergo elastic deformation relative to the chassis, and the elastic anti-slip buckle is located on the side of the fixing plate away from the stop inner wall, and is used to limit at least one of the fixing plates to prevent the fixing plate from falling out of the rotating buckle.

[0008] The air-conditioning motor mounting assembly provided by the embodiment of the present invention is provided with an elastic anti-slip buckle. During actual installation, the elastic anti-slip buckle can be deformed to avoid hindering the rotation of the fixing plate. After the fixing plate is rotated into place, the elastic anti-slip buckle can recover and stop at the edge of the fixing plate, and cooperate with the stop surface to limit the fixing plate in the horizontal direction to prevent the fixing plate from falling out of the rotating buckle. The rotating buckle itself can cooperate with the chassis surface to limit the fixing plate in the vertical direction, thereby achieving precise pre-fixation of the fixing plate, further ensuring that the motor is in an aligned state, and also ensuring the assembly reliability of the motor.

[0009] Furthermore, a plurality of clearance openings are provided in the middle of the chassis, and the plurality of clearance openings correspond one-to-one with the plurality of rotating buckles and are connected to the holding cavities accordingly.

[0010] The air conditioner motor mounting assembly provided by the embodiment of the present invention can partially hollow out the chassis by setting a plurality of clearance openings, saving chassis materials and facilitating the use of stamping or injection molding to form a rotating buckle, and can also expand the space of the clamping cavity, so that the fixing piece has enough deformation space in the clamping cavity, thereby facilitating the fixing piece to be quickly installed into the clamping cavity. In addition, the setting of the clearance openings can also expose the fixing piece from the bottom, which is convenient for the inspection of the fixing piece.

[0011] Furthermore, each of the rotating buckles is provided with a mounting hole, and a shock-absorbing pad is mounted on the mounting hole. The shock-absorbing pad partially extends into the holding cavity and is used to cooperate with the fixing plate in a clearance.

[0012] The air conditioner motor mounting assembly provided by the embodiment of the present invention has a mounting hole and a shock-absorbing pad installed therein. The shock-absorbing pad has a shock-absorbing and buffering effect and can effectively reduce vibration noise.

[0013] Furthermore, there are multiple elastic anti-slip buckles, and the multiple elastic anti-slip buckles are arranged in a one-to-one correspondence with the multiple rotating buckles, and the multiple rotating buckles are distributed in a ring along a first circumference, and the multiple elastic anti-slip buckles are distributed in a ring along a second circumference, and the diameter of the first circle is greater than the diameter of the second circle, so that the elastic anti-slip buckles and the holding opening are radially staggered.

[0014] The air conditioner motor mounting assembly provided in the embodiment of the present invention staggers the elastic anti-dropping buckle and the retaining opening, thereby enabling the opening positions to be staggered and improving the structural strength of the opening.

[0015] Furthermore, an assembly hole is also provided on the fixing plate, the assembly hole is located between the rotating buckle and the motor, and a connecting piece is assembled in the assembly hole, and the connecting piece is detachably connected to the chassis.

[0016] The air conditioner motor mounting assembly provided in the embodiment of the present invention realizes a detachable connection between the fixing plate and the chassis through a connecting piece, is easy to disassemble and assemble, and can reduce the number of connecting parts and simplify the connection structure.

[0017] Furthermore, the elastic anti-detachment buckle includes an elastic arm and an elastic protrusion. An elastic groove is opened on the chassis. The elastic arm and the elastic protrusion are both accommodated in the elastic groove. One end of the elastic arm is connected to an end of the elastic groove away from the fixing plate. The elastic protrusion is arranged at the other end of the elastic arm and protrudes relative to the chassis for limiting the fixing plate.

[0018] The air-conditioning motor mounting assembly provided in the embodiment of the present invention can better achieve the limiting of the fixing plate by setting an elastic protrusion. At the same time, the setting of the elastic arm also ensures the elasticity of the elastic protrusion in the vertical direction. The elastic protrusion can be deformed in the vertical direction when the elastic arm is installed and removed from the fixing plate, thereby ensuring that the elastic protrusion can adaptively protrude or retract into the chassis, ensuring its easy disassembly and assembly.

[0019] Furthermore, the elastic protrusion is provided with a stop surface and a guide slope on both sides along the circumferential direction, the stop surface cooperates with the side clearance of the fixing plate to limit the fixing plate, and the guide slope extends obliquely from the top side edge of the elastic protrusion to the elastic arm.

[0020] The air conditioner motor mounting assembly provided in the embodiment of the present invention has a guiding bevel, so that when the fixing plate is installed, the edge of the fixing plate can slide along the guiding bevel, thereby guiding the fixing plate. Furthermore, under the squeezing action of the fixing plate, the elastic arm is subjected to downward pressure and deformed, so that the fixing plate can be smoothly installed into the holding opening.

[0021] Furthermore, an inclination angle α of the guiding inclined surface relative to the surface of the elastic arm is between 25° and 35°.

[0022] The air conditioner motor mounting assembly provided by the embodiment of the present invention can reduce the assembly force required during assembly while ensuring sufficient elastic deformation of the elastic arm by reasonably limiting the inclination angle of the guiding slope, thereby facilitating the installation of the fixing plate.

[0023] Furthermore, the extension length of the elastic arm is 5-10 times the thickness of the elastic arm.

[0024] The air-conditioning motor mounting assembly provided in the embodiment of the present invention reasonably limits the extension length of the elastic arm, thereby avoiding warping and mold filling problems caused by the elastic arm being too long on the one hand, and also avoiding the elastic arm being too short, which causes it to be subjected to a large shearing force and a large bending degree at the root when deformed, thereby avoiding damage during the assembly process.

[0025] Furthermore, a protruding height of the elastic protrusion relative to the elastic arm is 0.8-2 times the thickness of the elastic arm.

[0026] The air conditioner motor mounting assembly provided by the embodiment of the present invention can avoid damage caused by excessive deformation of the elastic arm while ensuring the limiting effect on the fixing plate by reasonably limiting the protruding height of the elastic protrusion.

[0027] Furthermore, the width of the elastic arm is between 8-10 mm.

[0028] The air conditioner motor mounting assembly provided by the embodiment of the present invention can ensure the structural strength of the elastic arm by reasonably limiting the width of the elastic arm, while also avoiding difficulty in pressing down due to excessive width.

[0029] Furthermore, the yield stress σ of the elastic arm satisfies the following relationship:

[0030] εmp=σ / Es;

[0031] Wherein, εmp is the allowable strain of the elastic arm, and Es is the secant modulus of the elastic arm.

[0032] Furthermore, the clamping force W and the bending force P applied by the fixing plate to the elastic protrusion satisfy the following relationship:

[0033] W=P·(μ+tanα 2 ) / (1-μtanα 2 );

[0034] P=(h 2 Esεmp) / (6L);

[0035] Wherein, μ is the friction coefficient, α is the inclination angle of the guide slope relative to the surface of the elastic arm, εmp is the allowable strain of the elastic arm, Es is the secant modulus of the elastic arm, and h is the thickness of the elastic arm.

[0036] Furthermore, a guide fold is also provided on the rotating buckle, and the guide fold is located on the top side of the holding opening and extends outwardly in an inclined manner away from the chassis.

[0037] The air conditioner motor mounting assembly provided in the embodiment of the present invention can play a guiding role when the fixing plate is installed into the holding opening by setting a guide fold, so as to facilitate the fixing plate to be accurately installed into the holding opening, ensure that the fixing plate can be smoothly screwed into the holding opening, and make installation and disassembly more convenient.

[0038] Furthermore, a wire extending outward is arranged on the end surface of the motor facing away from the chassis.

[0039] The air-conditioning motor mounting assembly provided in the embodiment of the present invention has an outwardly extending wire arranged on the end face of the motor facing away from the chassis. After the actual wall installation is completed, the chassis will be located at the top. At this time, the wire opening of the motor wire is located at the lowest end of the motor, thereby preventing water vapor condensation from entering the interior of the motor along the wire, thereby improving reliability.

[0040] In another aspect, the present invention provides an air conditioner, comprising the aforementioned air conditioner motor mounting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic diagram of the structure of an air conditioner motor mounting assembly in an initial installation state provided by an embodiment of the present invention;

[0042] Figure 2 for Figure 1 Schematic diagram of the structure of the mid-chassis;

[0043] Figure 3 for Figure 2 A partial enlarged schematic diagram of middle III;

[0044] Figure 4 A cross-sectional schematic diagram of an air conditioner motor mounting assembly provided by an embodiment of the present invention;

[0045] Figure 5 for Figure 4 A partial enlarged schematic diagram of middle V;

[0046] Figure 6 A schematic diagram of the structure of an air conditioner motor installation assembly provided by an embodiment of the present invention in a state where installation is completed;

[0047] Figure 7 A schematic diagram of a partial structure of an air conditioner motor mounting assembly provided by an embodiment of the present invention;

[0048] Figure 8 It is a schematic diagram of the force application between the fixed plate and the guiding inclined plane;

[0049] Fig. 9 A schematic diagram of a partial structure of an air conditioner provided in an embodiment of the present invention;

[0050] Fig.10 The vibration noise spectrum of the air conditioner motor mounting assembly with a shock-absorbing pad provided by an embodiment of the present invention;

[0051] Fig.11 The vibration noise spectrum of the air conditioner motor mounting assembly provided by the embodiment of the present invention without the shock absorbing pad.

[0052] Description of reference numerals:

[0053] 100-air conditioner motor mounting assembly; 110-chassis; 111-mounting boss; 113-giving way opening; 130-motor; 131-fixing plate; 133-assembly hole; 135-connector; 137-wire; 150-rotating buckle; 151-holding cavity; 153-holding opening; 155-stop inner wall; 157-mounting hole; 159-guide folding edge; 170-elastic anti-drop buckle; 171-elastic arm; 173-elastic protrusion; 175-elastic groove; 177-stop surface; 179-guide slope; 190-shock-absorbing pad; 200-air conditioner; 210-enclosure. DETAILED DESCRIPTION

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0055] First embodiment

[0056] See also Figures 1 to 3 The present embodiment provides an air conditioner motor mounting assembly 100, which can realize pre-fixation of the motor 130, simplify the steps of aligning the motor 130, quickly and accurately align the motor 130, and solve the problem of difficulty in aligning the motor 130 in the prior art, thereby greatly improving the assembly efficiency.

[0057] The air conditioner motor mounting assembly 100 provided in this embodiment includes a chassis 110 and a motor 130. A plurality of outwardly extending fixing plates 131 are provided at the bottom of the motor 130. A plurality of rotating buckles 150 are provided in a central ring of the chassis 110. Each rotating buckle 150 is protruded from the surface of the chassis 110 and has a holding cavity 151 for accommodating the fixing plate 131. The two sides of the holding cavity 151 have circumferentially opposite holding openings 153 and stop inner walls 155. The holding openings 153 are used for the fixing plate 131 to pass through, and the stop inner walls 155 are used for stopping the fixing plate 131. The plurality of fixing plates 131 are rotated and snapped into the rotating buckles 150 one by one, and are detachably connected to the chassis 110.

[0058] It should be noted that the air conditioner motor mounting assembly 100 in this embodiment is suitable for an air conditioner 200, and the air conditioner 200 may be a ceiling machine, and the motor 130 may be a DC motor 130. The other internal structures of the ceiling machine may refer to the prior art. When the motor 130 is actually installed, the motor 130 may be first placed in the middle of the chassis 110, and the fixing plate 131 may be located outside the clamping opening 153, and then the motor 130 may be rotated so that the fixing plate 131 may be rotated and loaded into the clamping opening 153, and the motor 130 may be continuously rotated until the fixing plate 131 abuts against the inside of the stopper, at which point the motor 130 has been pre-fixed, and in this case, the fixing plate 131 and the chassis 110 are connected by screws, simplifying the alignment step of the motor 130. Compared with the prior art, the air conditioner motor mounting assembly 100 provided in the embodiment of the present invention can realize the pre-fixation of the motor 130, simplify the alignment step of the motor 130, quickly and accurately align the motor 130, and solve the problem of difficulty in aligning the motor 130 in the prior art, thereby greatly improving the assembly efficiency.

[0059] In this embodiment, a mounting boss 111 is provided in the middle of the chassis 110, and a plurality of rotating buckles 150 are provided on the mounting boss 111. It is worth noting that in this embodiment, there may be four rotating buckles 150, which are evenly distributed on the mounting boss 111, and there may also be four fixing plates 131 on the motor 130, which are dispersedly provided at the bottom of the motor 130 in a cross shape and extend outward.

[0060] In this embodiment, an elastic anti-slip buckle 170 is also protruding from the middle part of the chassis 110. The elastic anti-slip buckle 170 is arranged corresponding to at least one of the rotating buckles 150 and can undergo elastic deformation relative to the chassis 110. The elastic anti-slip buckle 170 is located on the side of the fixing plate 131 away from the stop inner wall 155, and is used to limit at least one fixing plate 131 to prevent the fixing plate 131 from slipping out of the rotating buckle 150. Specifically, the elastic anti-slip buckle 170 is also arranged on the mounting boss 111. By setting the elastic anti-slip buckle 170, during actual installation, the elastic anti-slip buckle 170 can be deformed to avoid hindering the rotation of the fixing plate 131. After the fixing plate 131 is rotated into place, the elastic anti-slip buckle 170 can recover its deformation and can stop at the edge of the fixing plate 131, and cooperate with the stop surface 177 to limit the fixing plate 131 in the horizontal direction to prevent the fixing plate 131 from escaping from the rotating buckle 150. The rotating buckle 150 itself can cooperate with the surface of the chassis 110 to limit the fixing plate 131 in the vertical direction, thereby realizing precise pre-fixation of the fixing plate 131, further ensuring that the motor 130 is in an aligned state, and also ensuring the assembly reliability of the motor 130.

[0061] In this embodiment, a plurality of clearance openings 113 are further provided in the middle of the chassis 110, and the plurality of clearance openings 113 correspond one by one to the plurality of rotating buckles 150, and are correspondingly connected to the holding cavity 151. By providing a plurality of clearance openings 113, on the one hand, the chassis 110 can be partially hollowed out, saving the material of the chassis 110, and conveniently forming the rotating buckle 150 by stamping or injection molding, and demolding is convenient; on the other hand, the space of the holding cavity 151 can be expanded, and the fixing sheet 131 can have sufficient deformation space in the holding cavity 151, thereby facilitating the fixing sheet 131 to be quickly installed into the holding cavity 151. In addition, the provision of the clearance openings 113 can also expose the fixing sheet 131 from the bottom, which is convenient for the inspection of the fixing sheet 131.

[0062] See also Figure 4 and Figure 5 In this embodiment, each rotating buckle 150 is also provided with a mounting hole 157, and a shock-absorbing pad 190 is mounted on the mounting hole 157. The shock-absorbing pad 190 partially extends into the holding cavity 151 and is used to cooperate with the fixing plate 131 in a clearance. Specifically, the shock-absorbing pad can be a rubber shock-absorbing pad 190, for example, it can be nitrile rubber with a thickness of 2 mm and a Shore hardness of 35 degrees. The mounting hole 157 is located at the top of the rotating buckle 150 and corresponds to the clearance opening 113 at the bottom. When the shock-absorbing pad 190 is actually installed, the shock-absorbing pad 190 can be installed into the mounting hole 157 from the side of the clearance opening 113 for easy installation. And by setting the mounting hole 157 and installing the shock-absorbing pad 190, the shock-absorbing pad 190 has a shock-absorbing and buffering effect, which can effectively reduce vibration noise.

[0063] In this embodiment, a clamping protrusion is provided on the top side of the shock absorbing pad 190, and the clamping protrusion can be just clamped into the mounting hole 157, thereby completing the installation of the shock absorbing pad 190. In addition, a hollow hole is also provided in the center of the shock absorbing pad 190, which can reduce the material consumption of the shock absorbing pad 190. Of course, the shape of the shock absorbing pad 190 is not described in detail here, but any structural member that extends into the clamping cavity 151 and can achieve a shock absorbing and buffering effect is within the protection scope of the present invention.

[0064] It should be noted that see Fig.11 For the vibration noise spectrum without the shock-absorbing pad 190, see Fig.10 2 is a vibration noise spectrum with the shock-absorbing pad 190 . It can be seen that the shock-absorbing pad 190 provided on the rotating buckle 150 has a good shock-absorbing and buffering effect. Through a fixed bandwidth analysis, the noise of the structure with the shock-absorbing pad 190 is significantly better than that of the structure without the shock-absorbing pad 190 .

[0065] Please continue to see Figures 3 to 7It is worth noting that after the fixing plate 131 is installed in place, the elastic anti-dropout buckle 170 and the rotating buckle 150 form a clamping and limiting structure, which limits the fixing plate 131 in the vertical and horizontal directions. There is a certain assembly margin between the elastic anti-dropout buckle 170 and the rotating buckle 150 and the fixing plate 131, so that there is a certain assembly gap between the rotating buckle 150 and the fixing plate 131, and between the elastic anti-dropout buckle 170 and the fixing plate 131. The assembly gap is between 0.1mm-0.3mm, preferably 0.2mm, to ensure that the fixing plate 131 can be clamped and smoothly rotated.

[0066] In the present embodiment, there are multiple elastic anti-slip buckles 170, and the multiple elastic anti-slip buckles 170 are arranged in a one-to-one correspondence with the multiple rotating buckles 150, and the multiple rotating buckles 150 are distributed in an annular manner along the first circumference, and the multiple elastic anti-slip buckles 170 are distributed in an annular manner along the second circumference, and the diameter of the first circumference is greater than the diameter of the second circumference, so that the elastic anti-slip buckles 170 and the holding opening 153 are radially misaligned. Preferably, the number of the elastic anti-slip buckles 170 and the rotating buckles 150 can be the same, for example, both are 4, and the 4 elastic anti-slip buckles 170 limit the 4 fixing plates 131 respectively. Of course, the number of the elastic anti-slip buckles 170 here can also be different from the number of the rotating buckles 150, and the number and position can be adjusted more according to the actual situation. In addition, the elastic anti-slip buckle 170 is staggered with the holding opening 153 so that the opening positions can be staggered, that is, the giving opening 113 and the holding opening 153 are staggered with the opening of the elastic anti-slip buckle 170, thereby improving the structural strength of the opening.

[0067] In this embodiment, the fixing plate 131 is further provided with an assembly hole 133, the assembly hole 133 is located between the rotating buckle 150 and the motor 130, and a connecting member 135 is assembled in the assembly hole 133, and the connecting member 135 is detachably connected to the chassis 110. Specifically, the connecting member 135 is a screw, and a corresponding screw hole is opened on the chassis 110, and the fixing plate 131 and the chassis 110 can be fixed to your home by a single screw. The detachable connection between the fixing plate 131 and the chassis 110 is achieved by the connecting member 135, which is convenient for disassembly and assembly, and can reduce the number of connecting parts and simplify the connection structure.

[0068] The elastic anti-drop buckle 170 includes an elastic arm 171 and an elastic protrusion 173. An elastic groove 175 is provided on the chassis 110. The elastic arm 171 and the elastic protrusion 173 are both accommodated in the elastic groove 175. One end of the elastic arm 171 is connected to the end of the elastic groove 175 away from the fixing plate 131. The elastic protrusion 173 is arranged at the other end of the elastic arm 171 and protrudes relative to the chassis 110, and is used to limit the fixing plate 131. Specifically, the size of the elastic groove 175 is slightly larger than the size of the elastic anti-drop buckle 170, so that the elastic arm 171 of the elastic anti-drop buckle 170 can be completely accommodated in the elastic groove 175, while the elastic protrusion 173 partially protrudes outward. Preferably, the upper side surface of the elastic arm 171 here can be flush with the surface of the chassis 110, and the elastic protrusion 173 protrudes from the surface of the chassis 110, so as to limit the fixing plate 131. By setting the elastic protrusion 173, the limiting of the fixing plate 131 can be better achieved. At the same time, the setting of the elastic arm 171 also ensures the elasticity of the elastic protrusion 173 in the vertical direction. When the elastic arm 171 is installed and removed from the fixing plate 131, the elastic protrusion 173 can be deformed in the vertical direction, thereby ensuring that the elastic protrusion 173 can adaptively protrude or retract into the chassis 110, ensuring its easy assembly and disassembly.

[0069] In this embodiment, the elastic protrusion 173 is provided with a stop surface 177 and a guide slope 179 on both sides along the circumferential direction. The stop surface 177 cooperates with the side clearance of the fixing sheet 131 to limit the fixing sheet 131. The guide slope 179 extends obliquely from the top edge of the elastic protrusion 173 to the elastic arm 171. Specifically, the guide slope 179 extends obliquely downward from the top edge of the elastic protrusion 173 in a direction away from the stop surface 177. By providing the guide slope 179, when the fixing sheet 131 is installed, the edge of the fixing sheet 131 can slide along the guide slope 179, which guides the fixing sheet 131. Then, under the squeezing action of the fixing sheet 131, the elastic arm 171 is subjected to downward pressure and deformed, so that the fixing sheet 131 can be smoothly installed into the holding opening 153.

[0070] In this embodiment, the inclination angle α of the guide slope 179 relative to the surface of the elastic arm 171 is between 25° and 35°. Specifically, the inclination angle α of the guide slope 179 relative to the surface of the elastic arm 171 here refers to the inclination angle of the guide slope 179 relative to the upper surface of the elastic arm 171 when the elastic anti-drop buckle 170 is in an undeformed state, and the inclination angle can characterize the introduction angle of the guide slope 179. Preferably, the inclination angle α can be 30°. By reasonably limiting the inclination angle of the guide slope 179, it is possible to reduce the assembly force required during assembly while ensuring sufficient elastic deformation of the elastic arm 171, so as to facilitate the installation of the fixing plate 131.

[0071] It should be noted that the value of the inclination angle α of the guide slope 179 here depends on the material friction coefficient and actual stiffness of the elastic anti-drop buckle 170. The reasonable angle is between 25° and 35°. When the friction coefficient is known, the calculation formula of the inclination angle limit is α=tan -1 (1 / u). The friction coefficients of several common plastics are as follows: PP's friction coefficient is 0.25-0.3; PC's friction coefficient is 0.45-0.55; ABS's friction coefficient is 0.55-0.65; PE's friction coefficient is 0.2-0.25; when PC is selected as the material, the limit angle is 1-1.15° according to the table.

[0072] In this embodiment, the extension length of the elastic arm 171 is 5-10 times the thickness of the elastic arm 171. In order to make the elastic arm 171 have sufficient resilience, will not break, and have sufficient anti-slip effect, the extension length of the elastic arm 171 is at least 5 times the arm thickness, preferably 10 times the arm thickness. If it is greater than 10 times the wall thickness, warping and mold filling problems may occur. If it is less than 5 times the wall thickness, the arm will be subjected to a large shearing effect and bending at the root of the arm, and the possibility of damage during the assembly process becomes greater. Among them, the extension length of the elastic arm 171 refers to the length of the elastic arm 171 in the direction of its long side, and the thickness of the elastic arm 171 refers to the width of the elastic arm 171 in the vertical direction. By reasonably limiting the extension length of the elastic arm 171, on the one hand, the problem of warping and mold filling caused by the elastic arm 171 being too long is avoided, and on the other hand, the elastic arm 171 is prevented from being too short, which causes it to be subjected to a large shearing effect and a large bending degree at the root when it is deformed, thereby avoiding damage during the assembly process.

[0073] In this embodiment, the protrusion height of the elastic protrusion 173 relative to the elastic arm 171 is 0.8-2 times the thickness of the elastic arm 171. Specifically, the protrusion height of the elastic protrusion 173 refers to the vertical distance between the top side surface of the elastic protrusion 173 and the top side surface of the elastic arm 171. The protrusion height of the elastic protrusion 173 determines the degree of deflection of the elastic soil block. When the extension length of the elastic arm 171 is 5 times the thickness, the protrusion height of the elastic protrusion 173 should be slightly less than the thickness of the elastic arm 171. When the extension length of the elastic arm 171 is 10 times the thickness, the protrusion height of the elastic protrusion 173 is equal to 2 times the thickness of the elastic arm 171. In this embodiment, the protrusion height of the elastic protrusion 173 is preferably equal to 2 times the thickness of the elastic arm 171. By reasonably limiting the protrusion height of the elastic protrusion 173, it is possible to ensure the limiting effect of the fixing plate 131 while avoiding damage caused by excessive deformation of the elastic arm 171.

[0074] In this embodiment, the width of the elastic arm 171 is between 8 and 10 mm. Specifically, the width of the elastic arm 171 refers to the width of the elastic arm 171 in a direction perpendicular to the extension direction. Preferably, the width of the elastic arm 171 here can be 9 mm. By reasonably limiting the width of the elastic arm 171, the structural strength of the elastic arm 171 can be ensured, while also avoiding the difficulty of pressing down due to being too wide.

[0075] In this embodiment, the rotating buckle 150 is further provided with a guide fold 159, which is located at the top side of the holding opening 153 and extends outwardly in a direction away from the chassis 110. The guide fold 159 can play a guiding role in the process of the fixing sheet 131 being installed into the holding opening 153, so that the fixing sheet 131 can be accurately installed into the holding opening 153, and the fixing sheet 131 can be smoothly screwed into the holding opening 153, which makes installation and removal more convenient.

[0076] In this embodiment, a wire 137 extending outward is provided on the end face of the motor 130 away from the chassis 110. Specifically, a wire outlet is provided on the end face of the motor 130, and the wire 137 extends out of the wire outlet. After the wall installation is actually completed, the chassis 110 will be located at the top. At this time, the wire outlet of the wire 137 of the motor 130 is located at the lowest end of the motor 130, so as to prevent water vapor condensation from entering the motor 130 along the wire 137, thereby improving reliability.

[0077] See also Figure 8 The material selection and force of the elastic anti-detachment buckle 170 are further analyzed below. It should be noted that in this embodiment, the rotating buckle 150 and the elastic anti-detachment buckle 170 are all integrally arranged on the chassis 110, so the materials of the rotating buckle 150, the elastic anti-detachment buckle 170 and the chassis 110 are consistent.

[0078] In this embodiment, the yield stress σ of the elastic arm 171 satisfies the following relationship:

[0079] εmp=σ / Es;

[0080] Wherein, εmp is the allowable strain of the elastic arm 171 , and Es is the secant modulus of the elastic arm 171 .

[0081] Specifically, according to Hooke's law: ε = σ / E, and because the elastic modulus is replaced by the secant modulus, εmp = σ / Es, where εmp is the allowable strain, σ is the yield stress, and Es is the secant modulus. Since disassembly is required, the actual value is taken as 0.5 times the allowable strain to prevent damage to the buckle.

[0082] The secant modulus (ES) of common plastics are as follows: ABS, strain 1%-2%, secant modulus 4285Mpa-3000Mpa; PC, strain 1%-3%, secant modulus 5600Mpa-3000Mpa. The instantaneous allowable strain (εmp) of common plastics are as follows: PE, 4-8; PP, 4-6; ABS, 2-3; PC, 4-6.

[0083] In this embodiment, the clamping force W and the bending force P applied by the fixing sheet 131 to the elastic protrusion 173 satisfy the following relationship:

[0084] W=P·(μ+tanα 2 ) / (1-μtanα 2 );

[0085] P=(h 2 Esεmp) / (6L);

[0086] Among them, μ is the friction coefficient, α is the inclination angle of the guide slope 179 relative to the surface of the elastic arm 171, εmp is the allowable strain of the elastic arm 171, Es is the secant modulus of the elastic arm 171, and h is the thickness of the elastic arm 171.

[0087] Specifically, the force in the same direction as the assembly is the insertion force W, and the flexure force P is the vertical force applied to the elastic protrusion 173 when inserted. According to the above formula and the above parameters, P=1.8N can be calculated, and the insertion force W can be calculated together. It can be seen that the use of PC material requires smaller insertion force W and flexure force P, which is more labor-saving.

[0088] The air conditioner motor mounting assembly 100 provided in this embodiment has the following installation process: first, the shock absorbing pad 190 is installed into the rotating buckle 150 through the clearance opening 113, and assembled on the mounting hole 157 to complete the installation of the shock absorbing pad 190. Then, the motor 130 is placed on the chassis 110 as a whole, and the fixing plate 131 of the motor 130 is placed between two adjacent rotating buckles 150, such as Figure 1 As shown. Then the motor 130 is rotated clockwise, and the elastic anti-detachment buckle 170 is elastically deformed by the pressure of the fixing plate 131, so that the fixing plate 131 can smoothly rotate from the holding opening 153 into the rotating buckle 150. After the motor 130 is rotated into place, the fixing plate 131 abuts against the inner wall 155 of the stopper, and the rotation is stopped at this time, and the elastic anti-detachment buckle 170 is no longer subjected to force and rebounds, and then the fixing plate 131 can be limited, so that the motor 130 is completely fixed, and the pre-fixation of the motor 130 is completed. At this time, the assembly hole 133 on the fixing plate 131 corresponds to the screw on the chassis 110, and can be fixed by the connecting piece 135, as shown in FIG. Figure 6As shown, finally, the motor 130 plug is plugged in to complete the installation. When disassembling the motor 130, it is only necessary to first disassemble the connector 135, then unplug the motor 130, and then press the elastic anti-dropout buckle 170 downward to make it elastically deformed, and then rotate the motor 130 counterclockwise. At this time, the fixing sheet 131 loses the limit of the elastic anti-dropout buckle 170 and can be disengaged from the rotating buckle 150. After the fixing sheet 131 is completely disengaged from the rotating buckle 150, the elastic anti-dropout buckle 170 will return to its original position, and the motor 130 can be directly taken out.

[0089] To summarize, the present embodiment provides an air-conditioning motor mounting assembly 100, by providing an outwardly extending fixing plate 131 at the bottom of the motor 130, and at the same time, a plurality of rotating buckles 150 are arranged in a central ring around the chassis 110, each rotating buckle 150 is provided with only a holding cavity 151, and the two sides of the holding cavity 151 have circumferentially opposite holding openings 153 and stop inner walls 155, the holding opening 153 is used for the fixing plate 131 to pass through, and the stop inner wall 155 is used to stop the fixing plate 131, and the plurality of fixing plates 131 are rotated and snapped into the rotating buckles 150 one by one, and are detachably connected to the chassis 110. During actual installation, the motor 130 can be first placed in the middle of the chassis 110, and the fixing plate 131 can be located outside the clamping opening 153, and then the motor 130 can be rotated so that the fixing plate 131 can be rotated and inserted into the clamping opening 153, and the motor 130 can be continuously rotated until the fixing plate 131 abuts against the inside of the stopper. At this time, the motor 130 has been pre-fixed. In this case, the fixing plate 131 and the chassis 110 are connected by screws, which simplifies the alignment steps of the motor 130. Compared with the prior art, the air conditioner motor mounting assembly 100 provided in the embodiment of the present invention can realize the pre-fixation of the motor 130, simplify the alignment steps of the motor 130, quickly and accurately align the motor 130, and solve the problem of difficult alignment of the motor 130 in the prior art, thereby greatly improving the assembly efficiency.

[0090] Second embodiment

[0091] See also Fig. 9 This embodiment provides an air conditioner 200, including an air conditioner motor mounting assembly 100. The basic structure and principle of the air conditioner motor mounting assembly 100 and the technical effects produced are the same as those of the first embodiment. For the sake of brief description, parts not mentioned in this embodiment may refer to the corresponding contents in the first embodiment.

[0092] The present embodiment provides an air conditioner 200, including a centrifugal fan (not shown), a casing 210 and an air conditioner motor mounting assembly 100, the air conditioner motor mounting assembly 100 including a chassis 110 and a motor 130, a plurality of outwardly extending fixing plates 131 are provided at the bottom of the motor 130, a plurality of rotating buckles 150 are provided around the middle of the chassis 110, each rotating buckle 150 is protruded from the surface of the chassis 110, and has a clamping cavity 151 for accommodating the fixing plate 131, the two sides of the clamping cavity 151 have circumferentially opposite clamping openings 153 and stop inner walls 155, the clamping openings 153 are used for the fixing plate 131 to pass through, the stop inner walls 155 are used for stopping the fixing plate 131, and the plurality of fixing plates 131 are rotated and clamped into the rotating buckles 150 one by one, and are detachably connected to the chassis 110. The enclosure 210 is disposed at the edge of the chassis 110 and is arranged to form an inner cavity. The centrifugal fan is disposed in the inner cavity and is transmission-connected to the motor 130 .

[0093] The air conditioner 200 in this embodiment may be a ceiling indoor air conditioner. Its basic structure, principle and technical effects produced may refer to existing ceiling air conditioners, and will not be described in detail here.

[0094] 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. An air conditioner motor mounting assembly, characterized in that: The invention comprises a chassis (110) and a motor (130), wherein the bottom of the motor (130) is provided with a plurality of fixing plates (131) extending outward, and the middle part of the chassis (110) is provided with a plurality of rotating buckles (150), each of the rotating buckles (150) is protruding from the surface of the chassis (110), and has a holding cavity (151) for accommodating the fixing plate (131), and the two sides of the holding cavity (151) are provided with circumferentially opposite holding openings (153) and stop inner walls (155), the holding openings (153) are used for allowing the fixing plate (131) to pass through, and the stop inner walls (155) are used for stopping the fixing plate (131), and the plurality of fixing plates (131) are rotated and snapped into the rotating buckles (150) one by one, and are detachably connected to the chassis (110).

2. The air conditioner motor mounting assembly according to claim 1, characterized in that: An elastic anti-slip buckle (170) is also protruded from the middle of the chassis (110), and the elastic anti-slip buckle (170) is arranged corresponding to at least one of the rotating buckles (150) and can be elastically deformed relative to the chassis (110). The elastic anti-slip buckle (170) is located on a side of the fixing plate (131) away from the stop inner wall (155) and is used to limit at least one of the fixing plates (131) to prevent the fixing plate (131) from slipping out of the rotating buckle (150).

3. The air conditioner motor mounting assembly according to claim 2, characterized in that: Each of the rotating buckles (150) is also provided with a mounting hole (157), and a shock-absorbing pad (190) is mounted on the mounting hole (157). The shock-absorbing pad (190) partially extends into the holding cavity (151) and is used to cooperate with the fixing plate (131) in a clearance manner.

4. The air conditioner motor mounting assembly according to claim 2, characterized in that: There are a plurality of elastic anti-slip buckles (170), and the plurality of elastic anti-slip buckles (170) are arranged in a one-to-one correspondence with the plurality of rotating buckles (150), and the plurality of rotating buckles (150) are distributed in an annular shape along a first circumference, and the plurality of elastic anti-slip buckles (170) are distributed in an annular shape along a second circumference, and the diameter of the first circumference is greater than the diameter of the second circumference, so that the elastic anti-slip buckles (170) and the holding opening (153) are radially staggered.

5. The air conditioner motor mounting assembly according to claim 2, characterized in that: The elastic anti-drop buckle (170) comprises an elastic arm (171) and an elastic protrusion (173); an elastic groove (175) is provided on the chassis (110); the elastic arm (171) and the elastic protrusion (173) are both accommodated in the elastic groove (175); one end of the elastic arm (171) is connected to an end of the elastic groove (175) away from the fixing plate (131); the elastic protrusion (173) is arranged at the other end of the elastic arm (171) and protrudes relative to the chassis (110) to limit the fixing plate (131).

6. The air conditioner motor mounting assembly according to claim 5, characterized in that: The elastic protrusion (173) is provided with a stop surface (177) and a guide inclined surface (179) on both sides along the circumferential direction; the stop surface (177) is matched with the side clearance of the fixing plate (131) to limit the position of the fixing plate (131); the guide inclined surface (179) extends obliquely from the top side edge of the elastic protrusion (173) to the elastic arm (171).

7. The air conditioner motor mounting assembly according to claim 6, characterized in that: The inclination angle α of the guiding inclined surface (179) relative to the surface of the elastic arm (171) is between 25° and 35°.

8. The air conditioner motor mounting assembly according to claim 6, characterized in that: The clamping force W and the flexure force P applied by the fixing sheet (131) to the elastic protrusion (173) satisfy the following relationship: W=P·(μ+tanα 2 ) / (1-mtana 2 ); P=(h 2 Esεmp) / (6L); Wherein, μ is the friction coefficient, α is the inclination angle of the guide slope (179) relative to the surface of the elastic arm (171), εmp is the allowable strain of the elastic arm (171), Es is the secant modulus of the elastic arm (171), and h is the thickness of the elastic arm (171).

9. The air conditioner motor mounting assembly according to claim 5, characterized in that: The extension length of the elastic arm (171) is 5-10 times the thickness of the elastic arm (171).

10. The air conditioner motor mounting assembly according to claim 5, characterized in that: The protruding height of the elastic protrusion (173) relative to the elastic arm (171) is 0.8 to 2 times the thickness of the elastic arm (171).

11. The air conditioner motor mounting assembly according to claim 5, characterized in that: The width of the elastic arm (171) is between 8 and 10 mm.

12. The air conditioner motor mounting assembly according to claim 5, characterized in that: The yield stress σ of the elastic arm (171) satisfies the following relationship: εmp=σ / Es; Wherein, εmp is the allowable strain of the elastic arm (171), and Es is the secant modulus of the elastic arm (171).

13. The air conditioner motor mounting assembly according to claim 1, characterized in that: The fixing plate (131) is also provided with an assembly hole (133), the assembly hole (133) is located between the rotating buckle (150) and the motor (130), and a connecting piece (135) is installed in the assembly hole (133), and the connecting piece (135) is detachably connected to the chassis (110).

14. The air conditioner motor mounting assembly according to claim 1, characterized in that: The rotating buckle (150) is also provided with a guide folded edge (159), which is located on the top side of the holding opening (153) and extends outwardly in a direction away from the chassis (110).

15. The air conditioner motor mounting assembly according to claim 1, characterized in that: An outwardly extending conducting wire (137) is arranged on the end surface of the motor (130) facing away from the chassis (110).

16. An air conditioner (200), characterized in that: It comprises an air conditioner motor mounting assembly as described in any one of claims 1-15.

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