Fixing structure, motor and living electric appliance

Abstract

The invention provides a fixing structure, a motor and a domestic electric appliance, relates to the technical field of motors, and solves the technical problems of large vibration and large noise of a water fetching motor. The fixing structure comprises a gasket, a damping flexible part, a fixing lug and a fastening screw, the fixing lug is arranged on the motor and is connected with the damping flexible part; the gasket presses and covers the top of the damping flexible part; the fastening screws sequentially penetrate through the gaskets, the damping flexible pieces and the fixing lugs and then are connected with the chassis. The damping flexible part wraps the fixing lug in a full-wrapping mode; the damping flexible part comprises a hollow rubber block. The water fetching motor is fixed through the gasket and the vibration reduction flexible part, and hard contact between the water fetching motor and the chassis is avoided through the vibration reduction flexible part, so that transmission of rotation noise is avoided, resonance generated by the water fetching motor is reduced, and water fetching sound comfort is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a fixing structure, a motor and a household appliance. Background Art

[0003] In recent years, with the development of science and technology and the improvement of living standards, air conditioners have become an indispensable appliance in people's daily lives, and the public's requirements for air conditioner comfort and quality are getting higher and higher. In the hot summer, the frequency of users' use of air conditioners has increased dramatically. Under outdoor conditions, the split wall-mounted air conditioner with the inner and outer units connected by copper pipes is extremely inconvenient to use.

[0004] In order to facilitate outdoor use and meet consumers' growing demand for outdoor temperature control, multifunctional outdoor portable air-conditioning products are designed in the prior art.

[0005] Most portable air conditioners on the market are drainage-free systems with reserved drainage outlets. The pumping motor used in the drainage-free system will produce the noise of the motor's own rotation and the sound of the water pumping wheel hitting the water surface. The noise of the pumping motor's own rotation is caused by the imbalance of the stator and rotor in the pumping motor, which causes the motor to vibrate as a whole. Since the pumping motor is fixed on the chassis, the vibration will be transmitted to the chassis to produce resonance, amplifying the noise. Summary of the invention

[0006] The purpose of the present invention is to provide a fixing structure, a motor and a household appliance to solve the technical problems of large vibration and noise of the water pumping motor in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides a fixing structure, comprising a gasket, a vibration-damping flexible member, a fixing ear, and a fastening screw; wherein:

[0009] The fixing ear is arranged on the equipment to be fixed and connected to the vibration-damping flexible member;

[0010] The gasket is pressed on the top of the vibration-damping flexible member;

[0011] The fastening screw passes through the gasket, the vibration-damping flexible member and the fixing ear in sequence and is connected to the position to be installed.

[0012] The fixing structure provided by the present invention fixes the water pumping motor through a gasket and a vibration-damping flexible part, avoids hard contact between the water pumping motor and the chassis through the vibration-damping flexible part, thereby avoiding the transmission of rotational noise, reducing the resonance generated by the water pumping motor, solving the noise and abnormal noise problems caused by vibration, improving the comfort of water pumping sound, and solving the problem of difficult fixing based on the resonance of the water pumping motor and the problem of loud sound caused by the water pumping motor dial wheel hitting the water surface.

[0013] As a further improvement of the present invention, the vibration-damping flexible member fully wraps the fixing ear.

[0014] As a further improvement of the present invention, the vibration-damping flexible member includes a hollow rubber block, and the rubber block is an open structure on the side facing the fixing ear for the fixing ear to be inserted; a fixing member for fixing the fixing ear is also provided in the inner cavity of the rubber block; and the horizontal depth of the inner cavity of the rubber block is equal to the radial length of the fixing ear.

[0015] As a further improvement of the present invention, the fixing part includes an upper fixing column and a lower fixing column which are separately arranged and have the same specifications; the upper fixing column is fixed to the top of the inner cavity, and the lower fixing column is fixed to the bottom of the inner cavity; and an insertion gap is left between the upper fixing column and the lower fixing column.

[0016] As a further improvement of the present invention, the fixing ear is provided with a sleeve hole matched with the specifications of the upper fixing column; and the vibration-damping flexible member is provided with a penetrating screw through hole corresponding to the position of the fixing member.

[0017] As a further improvement of the present invention, the gasket is a flat plate structure, made of metal material, and is provided with a mounting hole.

[0018] The present invention provides a motor, comprising a motor body and the fixing structure; the motor body is installed at a position to be installed through the fixing structure.

[0019] As a further improvement of the present invention, the number of the fixing ears is two, and they are symmetrically arranged on the motor body.

[0020] The present invention provides a household appliance, comprising the motor.

[0021] As a further improvement of the present invention, the household appliance is a portable integrated mobile air conditioner, including a chassis for fixing the motor, a fixed sinker for supporting the fixed structure is provided on the chassis, and limiting ribs for horizontally limiting the fixed structure are provided on the side of the fixed sinker; the fixed sinker is also provided with screw holes for connecting with the fixed structure.

[0022] The air conditioner of the present invention is an integrated, portable, compact, highly comfortable and multifunctional outdoor portable air-conditioning product, which not only improves the decorativeness and diversity of the air-conditioning appearance to meet consumers' growing demand for outdoor temperature control (such as camping scenes), but also adds silicone rubber and sheet metal gaskets to avoid hard contact between the motor and the chassis, thereby avoiding the transmission of the rotation noise of the water-pumping motor, effectively analyzing the water-pumping logic problem of the portable air-conditioning, improving product safety performance, simplifying the user processing process, and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a rubber block in a fixed structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the exploded structure of the air conditioner of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the motor of the present invention;

[0027] Figure 4 is a front cross-sectional view of the air conditioner of the present invention;

[0028] Figure 5 yes Figure 4 Middle A is a partial enlarged view;

[0029] Figure 6 It is a top view of the fixed structure of the present invention after installation.

[0030] In the figure, 1, rubber block; 11, inner cavity; 12, upper fixing column; 13, lower fixing column; 14, insertion gap; 15, screw through hole; 2, gasket; 21, mounting hole; 3, fixing ear; 31, socket hole; 4, fixed sinker; 5, limiting rib; 100, motor body; 200, dial; 300, chassis; 301, screw hole. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0032] like Figure 1-Figure 6 As shown, the present invention provides a fixing structure, including a gasket 2, a vibration-damping flexible member, a fixing ear 3, and a fastening screw; wherein:

[0033] The fixing ear 3 is arranged on the device to be fixed and connected to the vibration-damping flexible member;

[0034] The gasket 2 is pressed on the top of the vibration-damping flexible member;

[0035] The fastening screw passes through the gasket 2, the vibration-damping flexible member and the fixing ear 3 in sequence and is connected to the position to be installed.

[0036] During installation, the fixing ear 3 of the device to be fixed is inserted into the vibration-damping flexible part, and then installed in place using the fastening screws. At this time, the device to be fixed is not in direct rigid contact with the installation position, but is contacted by the vibration-damping flexible part, thereby avoiding the transmission of rotation noise, reducing the resonance generated by the water pumping motor, solving the noise and abnormal noise problems caused by vibration, improving the comfort of water pumping sound, and solving the problem of difficult fixing based on the resonance of the water pumping motor and the problem of loud sound caused by the water pumping motor dial hitting the water surface.

[0037] The fixing structure provided by the present invention fixes the water pumping motor through the gasket 1 and the vibration-damping flexible part, avoids hard contact between the water pumping motor and the chassis through the vibration-damping flexible part, reduces the vibration caused by the mechanical movement of the water pumping motor, and better eliminates the vibration of the motor in the radial direction of the shaft, thereby achieving better vibration reduction effect and improving the comfort of users.

[0038] As an optional implementation of the present invention, in this embodiment, the vibration-damping flexible member fully wraps the fixing ear 3. That is to say, the fixing ear 3 is completely buried in the vibration-damping flexible member, and the fixing ear 3 is not visible from the outside. Through this structure, not only vibration isolation and vibration reduction are achieved, but also good stability is achieved to prevent the generation of vibration points.

[0039] In this embodiment, if Figure 1 As shown, the vibration-damping flexible member includes a hollow rubber block 1, which can be made of silicone rubber; the rubber block 1 is open on the side facing the fixing ear for the fixing ear 3 to be inserted; a fixing member for fixing the fixing ear 3 is also provided in the inner cavity 11 of the rubber block 1; and the horizontal depth of the inner cavity 11 of the rubber block 1 is equal to the radial length of the fixing ear 3.

[0040] It should be noted here that if Figure 4 and Figure 5 As shown, the radial direction of the fixing ear 3 referred to here refers to the radial direction of the motor body 100. By this structural arrangement, as Figure 5 As shown, after the fixing ear 3 is inserted into the inner cavity 11 , the edge of the rubber block 1 just abuts against the side wall of the motor body 100 .

[0041] like Figure 1 As shown, the fixing member includes an upper fixing column 12 and a lower fixing column 13 which are separately arranged and have the same specifications; the upper fixing column 12 is fixed to the top of the inner cavity 11, and the lower fixing column 13 is fixed to the bottom of the inner cavity 11; and an insertion gap 14 is left between the upper fixing column 12 and the lower fixing column 13.

[0042] By setting the insertion gap 14, the fixing ear 3 can be inserted through the insertion gap 14, and due to the flexible and deformable characteristics of the upper fixing column 12 and the lower fixing column 13, the fixing ear 3 can be smoothly inserted and then return to the original position under the action of the rebound force, thereby realizing the socket fixation of the fixing ear 3.

[0043] In order to facilitate quick sleeve connection, a sleeve hole 31 matching the specifications of the upper fixing column 12 is provided on the fixing ear 3; a screw through hole 15 is provided on the vibration-damping flexible member corresponding to the position of the fixing member.

[0044] Through the full-enclosed structure of the rubber block and the screw through the hole, the screw is fixed to the motor through the inner hole of the cylinder. The screw fixation structure fully enclosed by rubber can reduce the resonance effect more significantly, and can completely avoid the rigid contact between the motor injection molded shell and the chassis injection molded body, and can completely avoid the resonance problem caused by the rigid contact between the motor and the chassis.

[0045] Specifically, the screw through hole 15 is opened from the top to the bottom of the rubber block 1 and passes through the upper fixing column 12 and the lower fixing column 13 in the middle.

[0046] As an optional implementation manner of the present invention, the gasket 2 is a flat plate structure, made of metal material, and a mounting hole 21 is provided on the gasket 2 .

[0047] Specifically, the gasket 2 is a sheet metal part having a certain rigidity and hardness, and plays a role in fixing the motor body 100 .

[0048] like Figure 2 and Figure 3 As shown, the present invention provides a motor. Specifically, the motor is a water-pumping motor in a portable integrated mobile air conditioner. The water-pumping motor includes a motor body 100 and a fixing structure. The motor body 100 is installed at a position to be installed through the fixing structure.

[0049] In this embodiment, the location to be installed is the chassis 300 , and a dial wheel 200 is installed on the output shaft of the water pumping motor. The dial wheel 200 is used to stir the condensed water in the water receiving tray in the chassis 300 .

[0050] In this embodiment, in order to simplify the structure and reduce the cost, there are two fixing ears 3 symmetrically arranged on the motor body 100 .

[0051] The shape of the fixing ear 3 is the same as the shape of the inner cavity 11 of the rubber block 1, so as to achieve good plug-in contact.

[0052] The present invention provides a household appliance, comprising the above-mentioned motor.

[0053] Furthermore, the household appliance is a portable integrated mobile air conditioner, such as Figure 2 As shown, it includes a chassis 300 for fixing the motor, and a fixed sinker 4 for supporting the fixed structure is arranged on the chassis 300. A limiting rib 5 for horizontally limiting the fixed structure is arranged on the side of the fixed sinker 4; the fixed sinker 4 is also provided with a screw hole 301 for connecting with the fixed structure.

[0054] The air conditioner of the present invention is provided with a fixed structure that can reduce vibration. By adding wrapped rubber blocks 1 at the fixed positions on both sides of the motor, and adding fixed sinkers 4 and limiting ribs 5 on the chassis 300, the rubber parts and sheet metal parts are prevented from moving. The rubber has a good vibration reduction effect, which greatly reduces the vibration generated by the motor when it rotates.

[0055] It should be noted that there may be multiple limiting ribs 5 to limit the positions at the four corners or multiple sides of the fixed structure, thereby forming a limiting effect in multiple directions.

[0056] It should be noted here that limiting ribs are added to the water tray and the chassis to limit the sheet metal at the screw fixing point, thereby effectively fixing the water pumping motor and solving the problem of motor fixing.

[0057] When in use, by controlling the running time of the water pumping motor, the most suitable time for water pumping is provided to perform the water pumping action in stages while ensuring that the water receiving tray is not full of water, so that the frequency of the water pumping dial wheel hitting the water surface is reduced, thereby improving the user's comfort when using the air conditioner.

[0058] like Figure 2 As shown, the air conditioner also includes a water receiving pan;

[0059] There are fixing ears 3 on both sides of the water pumping motor. The two fixing ears 3 have two socket holes 31. The water pumping motor is fixed by fastening screws passing through the socket holes 31 and connected to the chassis 300.

[0060] like Figure 1 and Figure 5 As shown, the rubber block 1 completely covers the fixing ear 3 of the water pumping motor. An insertion gap 14 is reserved in the inner cavity 11 of the rubber block 1. When installing the rubber block 1, just align its inner cavity 11 with the fixing ear 3 of the water pumping motor and insert it directly. Because the rubber block 1 is made of soft material, the cylindrical fixing column part in the inner cavity 11 can rebound to ensure that the fixing ear 3 is assembled in place.

[0061] like Figure 2 , 4As shown, the water pumping motor is fixed on the chassis 300 assembly and fixed by two fixing ears 3 of the water pumping motor with screws. The water pumping motor assembled with the rubber block 1 is placed at the screw hole 30 position of the chassis fixed sinker. Because the stator and rotor of the water pumping motor rotate unbalancedly when it moves, the motor vibrates as a whole. U-shaped limit ribs 5 are designed on three sides of the fixed sinker to prevent the rubber block 1 from shifting.

[0062] like Figure 2 As shown, after the rubber block 1 and the water pumping motor are placed in place, the sheet metal gasket 2 is placed on the limiting rib 5 above the fixed sinking platform 4. After being placed in place, a certain gap is reserved between the sheet metal gasket 2 and the top of the rubber block 1. The gap is reserved for 0.5mm. The thickness of the sheet metal gasket 2 is 2mm. The material of the gasket 2 is stainless steel plate 022Cr19Ni10. The stainless steel material has high hardness, strong rigidity, and is not easy to bend and deform. The yield strength σs can reach 205 (MPa). Then, the screws are inserted through the gasket 2, the rubber block 1, and the fixing ear 3 of the water pumping motor into the fixed sinking platform 4 of the chassis 300 to fix it.

[0063] like Figure 5 As shown, the screw cap contacts the gasket 2, the gasket 2 contacts the U-shaped limiting rib 5 of the chassis, the gap between the gasket 2 and the upper surface of the rubber block 1 is 0.5 mm, and the lower surface of the rubber block 1 contacts the upper surface of the chassis fixed sinker 4.

[0064] like Figure 5 As shown, a self-tapping screw ST3.9 is used, and the diameter of the screw thread is about φ3.9mm. The inner diameter of the screw hole of the fixed sink 4 adopts a standard diameter of about φ3.1mm. The inner diameter of the screw through the hole of the rubber block 1 is designed to be φ3.9mm, and it is assembled without gap with the screw thread, which can improve the vibration reduction effect. If the gap between the rubber block 1 and the screw is too large, the vibration reduction effect of the rubber block 1 will be weakened. If the rubber block 1 and the screw have an interference fit, the rubber block 1 will be squeezed and deformed, which will cause resonance between the motor and the chassis.

[0065] The inner diameter of the mounting hole 21 of the sheet metal gasket 2 is designed to be φ4.3 mm. Since the main function of the sheet metal gasket 2 is to control the vertical movement of the rubber block 1, no control force is required in the horizontal direction.

[0066] like Figure 6 As shown, the gasket 2 is designed to be in the shape of a four-cornered cross and is placed on the U-shaped limiting rib 5 of the chassis. The extended portion of the chassis limiting rib 5 is designed to be in the shape of a "7" with the shape of the gasket 2. This design can effectively prevent the gasket 2 from swinging up and down and left and right, and plays a role in pre-positioning before assembling the screws.

[0067] like Figure 6As shown, the combination of gasket 2 and rubber and the rubber movement amount reserved for the motor starting vibration can effectively avoid the resonance problem between the motor and the chassis, improve the noise experience of the whole machine, and improve the user comfort.

[0068] The rubber block 1 in the present invention uses common silicone material and may be deformed, which is a normal phenomenon. The order of assembling parts is to pre-install the motor and the rubber block 1 first, then place the whole on the chassis assembly, then place the sheet metal gasket, and finally assemble the screws.

[0069] The water level in the water tray is measured by installing a water level detection module in the water tray. The lowest point of the water level in the water tray is set as point X, and the lowest point of the dial wheel at the front end of the pumping motor is set as point Y. The height difference between point X and point Y is Z=Y-Xmm. By setting the original point of the water level detection module as point X, the water level when the whole machine is running is set to L. If the water level LX≥YX, the water level detection module sends a signal to the main board to control the pumping motor to start running to pump water. If the water level LX<YX, the water level detection module sends a signal to the main board to shut down the pumping motor. This control logic can not only reduce the motor noise and pumping noise generated by the continuous operation of the pumping motor, but also improve the pumping efficiency by controlling the start and stop of pumping water, and improve the comfort of the whole machine.

[0070] The air conditioner of the present invention is an integrated, portable, compact, highly comfortable and multifunctional outdoor portable air-conditioning product, which not only improves the decorativeness and diversity of the air-conditioning appearance to meet consumers' growing demand for outdoor temperature control (such as camping scenes), but also adds silicone rubber and sheet metal gaskets to avoid hard contact between the motor and the chassis, thereby avoiding the transmission of the rotation noise of the water-pumping motor, effectively analyzing the water-pumping logic problem of the portable air-conditioning, improving product safety performance, simplifying the user processing process, and improving user experience.

[0071] Based on the above conditions, the present invention designs a water pumping motor that reduces vibration noise. The water pumping motor is designed to add a flange outward to form a fixing ear 3, and a silicone rubber block 1 and a sheet metal gasket 2 are added to prevent the motor from rigidly contacting the chassis 300, thereby preventing the transmission of the rotation noise of the water pumping motor. Combined with the control method, the portable air conditioner water pumping logic problem is effectively analyzed, the product safety performance is improved, the user processing process is simplified, and the user experience is improved.

[0072] First of all, it should be explained here that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0073] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0074] In addition, 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.

[0075] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] In the present invention, 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 the first and second features are in indirect contact through an intermediate medium. Moreover, 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.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0078] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A fixing structure, characterized in that: It includes gaskets, vibration-damping flexible parts, fixing ears, and fastening screws; among which: The fixing ear is arranged on the equipment to be fixed and connected to the vibration-damping flexible member; The gasket is pressed on the top of the vibration-damping flexible member; The fastening screw passes through the gasket, the vibration-damping flexible member and the fixing ear in sequence and is connected to the position to be installed.

2. The fixing structure according to claim 1, characterized in that: The vibration-damping flexible member fully wraps the fixing ear.

3. The fixing structure according to claim 2, characterized in that: The vibration-damping flexible member comprises a hollow rubber block, the side of the rubber block facing the fixing ear is an open structure for the fixing ear to be inserted; a fixing member for fixing the fixing ear is also arranged in the inner cavity of the rubber block; and the horizontal depth of the inner cavity of the rubber block is equal to the radial length of the fixing ear.

4. The fixing structure according to claim 3, characterized in that: The fixing member comprises an upper fixing column and a lower fixing column which are separately arranged and have the same specifications; the upper fixing column is fixed to the top of the inner cavity, and the lower fixing column is fixed to the bottom of the inner cavity; and an insertion gap is left between the upper fixing column and the lower fixing column.

5. The fixing structure according to claim 4, characterized in that: The fixing ear is provided with a sleeve hole matched with the specification of the upper fixing column; the vibration-damping flexible member is provided with a screw through hole corresponding to the position of the fixing member.

6. The fixing structure according to claim 1, characterized in that: The gasket is a flat plate structure, made of metal material, and is provided with a mounting hole.

7. A motor, characterized in that: It comprises a motor body and a fixing structure as described in any one of claims 1 to 6; the motor body is installed at a position to be installed through the fixing structure.

8. The motor according to claim 7, characterized in that The number of the fixing ears is two, and they are symmetrically arranged on the motor body.

9. A household appliance, characterized in that: Comprising a motor as described in any one of claims 7-8.

10. The household appliance according to claim 9, characterized in that: The household appliance is a portable integrated mobile air conditioner, which includes a chassis for fixing the motor, a fixed sinker for supporting the fixed structure is provided on the chassis, and limiting ribs for horizontally limiting the fixed structure are provided on the side of the fixed sinker; the fixed sinker is also provided with screw holes for connecting with the fixed structure.

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