CN113531980A

CN113531980A - Household electrical appliance

Info

Publication number: CN113531980A
Application number: CN202110788713.9A
Authority: CN
Inventors: 刘明勇; 王宁; 李士东; 张珩; 高治国; 田言勇
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2021-10-22
Anticipated expiration: 2040-01-09
Also published as: CN111189275B; CN111189275A; CN113531980B; WO2021139118A1

Abstract

The invention discloses a household appliance, which comprises a box body defining a compartment and a motor device arranged on the box body, the household appliance also comprises a shelf arranged in the chamber and a lifting device which is connected with the shelf and can lift the shelf, the motor device is connected with the lifting device to drive the lifting device to move, the household appliance also comprises an upper mounting seat which is fixedly arranged relative to the box body, the upper mounting seat is connected with the lifting device, the upper mounting seat and the motor device are positioned at two ends of the lifting device, the household appliance also comprises a second damping structure, the second shock-absorbing structure comprises a second shock-absorbing part and a fixing part, wherein the second shock-absorbing part is arranged on the box body and has certain flexibility, the fixing part is embedded in the second shock-absorbing part, and the upper mounting seat is fixedly connected with the fixing part. The household appliance has good damping effect and greatly reduces noise.

Description

Household electrical appliance

The application is a divisional application with the application number of 202010022538.8, the application date of 2020, 1 and 9, and the invention name of "household appliance".

Technical Field

The present invention relates to a household appliance.

Background

A refrigerator includes a cabinet, which is generally provided with shelves and/or an ice-making unit, etc., and a door operable to open/close the cabinet. In order to lift the shelf and make the ice cube tray rotate, a motor is needed to be arranged in the box body. The motor passes through screw fixed connection in the box, for reducing the vibration that the motor operation brought, sets up the shock pad between motor and the box. But even set up the shock pad, still be rigid connection between motor and the box, the shock attenuation effect is very poor, and the noise is still very high.

Disclosure of Invention

The invention aims to provide a household appliance, and the motor of the household appliance has good damping effect and greatly reduces noise.

In order to achieve one of the above objects, an embodiment of the present invention provides a household appliance, which includes a box defining a compartment, and a motor device disposed in the box, where the motor device includes a motor base and a motor body fixed to the motor base, and the household appliance further includes a first damping structure, the first damping structure includes a first damping member disposed in the box and having a certain flexibility, and at least one fastening member embedded in the first damping member, the motor base is fixedly connected to the fastening member, a connection direction of the motor base and the fastening member is defined as an axial direction, a direction perpendicular to the axial direction is defined as a radial direction, and an outer periphery of the fastening member is completely covered by the first damping member in the radial direction.

As a further improvement of the embodiment of the present invention, the first shock-absorbing structure further includes a connecting member fixed to the box body and having a certain rigidity, and the first shock-absorbing member is disposed on the connecting member.

As a further improvement of the embodiment of the present invention, a receiving groove adapted to an outer periphery of the first shock absorbing member is provided on the connecting member, and the first shock absorbing member is located in the receiving groove.

As a further improvement of the embodiment of the present invention, the household appliance further includes a shelf disposed in the compartment and a lifting device connected to the shelf and lifting the shelf, and the motor is connected to the lifting device to drive the lifting device to move.

As a further improvement of the embodiment of the present invention, the lifting device includes a lead screw connected to the motor body and a nut member threadedly engaged with the lead screw, and the nut member is fixed with respect to the shelf.

As a further improvement of the embodiment of the present invention, the lifting device further includes a guide rod fixed to the box body, and the nut member is provided with a guide hole through which the guide rod passes.

As a further improvement of the embodiment of the present invention, one end of the guide rod is fixedly connected to the box, and the other end of the guide rod is fixedly connected to the motor base.

As a further improvement of the embodiment of the present invention, the household appliance further includes an upper mounting seat fixedly disposed with respect to the box body, one end of the lead screw is connected to the motor body, and the other end of the lead screw is rotatably connected to the upper mounting seat, the household appliance further includes a second damping structure, the second damping structure includes a second damping member having a certain flexibility and a fixing member embedded in the second damping member, the upper mounting seat is fixedly connected to the fixing member, and in the radial direction, an outer periphery of the fixing member is completely covered by the second damping member.

As a further improvement of the embodiment of the invention, the box body comprises a shell, an inner container and a foaming material, wherein a cavity is formed between the inner container and the shell, the foaming material is positioned in the cavity, and the first damping structure is fixed in the cavity in a foaming manner.

As a further improvement of the embodiment of the present invention, the household appliance is a refrigerator.

As a further improvement of the embodiment of the present invention, two second limiting structures and two third limiting structures are provided, and the two second limiting structures and the two third limiting structures are respectively provided near the left side and the right side

Compared with the prior art, the invention has the beneficial effects that: the motor cabinet fixed connection in the fastener, and the fastener inlays completely and locates first damper for the fastener can not with box direct contact, thereby make be flexonics between motor cabinet and the box, the shock attenuation effect of this domestic appliance's motor is fine, greatly reduced the noise.

Drawings

FIG. 1 is a front view of a household appliance in an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the household appliance of FIG. 1;

FIG. 3 is another perspective view of the household appliance of FIG. 2;

FIG. 4 is an exploded perspective view of the appliance of FIG. 1, with the inner container of the housing removed;

fig. 5 is another perspective exploded view of the household appliance of fig. 4.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

In the description of the embodiments of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner" and "outer" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are generally referred to with reference to a state in which a home appliance is normally used, and do not indicate that the referred positions or elements must have specific orientations.

Moreover, it will be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by the above terms. The above terms are only used to distinguish these descriptive objects from each other. For example, the first shock-absorbing structure may be referred to as the second shock-absorbing structure, and likewise, the second shock-absorbing structure may be referred to as the first shock-absorbing structure, without departing from the scope of protection of this application.

As shown in fig. 1 to 5, the present invention discloses a household appliance, and particularly, in the present embodiment, the household appliance is a refrigerator. Of course, the household appliance may also be a freezer, a refrigerator, etc. The refrigerator includes a cabinet and a door for opening or closing the cabinet. The household appliance comprises a cabinet defining a compartment and a motor device 10 arranged in the cabinet, wherein the motor device 10 is used for driving any other device or structural component which is arranged in the cabinet and needs to be driven by the motor device 10, such as an ice making device, a shelf and the like. The motor apparatus 10 includes a motor mount 12 and a motor body 14 fixedly coupled to the motor mount 12.

The household appliance further comprises a first damping structure, the first damping structure comprises a first damping piece 16 which is arranged on the box body and has certain flexibility and at least one fastener 18 which is embedded in the first damping piece 16 and has certain rigidity, the motor base 12 is fixedly connected to the fastener 18, the connection direction of the motor base 12 and the fastener 18 is defined to be the axial direction, the direction perpendicular to the axial direction is the radial direction, and the periphery of the fastener 18 is completely coated by the first damping piece 16 in the radial direction. In addition, the fastener 18 is shown exploded away from the first cushioning member 16 for ease of illustration, and the actual product is such that the fastener 18 is embedded in the first cushioning member 16 as a unit.

In the preferred embodiment, the first shock absorbing member 16 is a rubber member. Of course, other flexible materials may be used for the first shock absorbing member 16. The fasteners 18 are provided in two, although other numbers of fasteners 18 may be provided depending on the particular design requirements. Preferably, the fastening member 18 is a nut that is embedded in the first cushioning member 16. The periphery of the nut perpendicular to the axial direction is completely covered by the first damping piece 16, and one end of the nut is not covered by the first damping piece 16 and is matched and connected with the screw, and the screw penetrates through the motor base 12 and is matched and connected with the nut. The other end of the nut may be arranged to be entirely covered by the first cushion member 16 or may be arranged to be partially covered by the first cushion member 16, but in any case, it is only necessary to ensure a certain distance between the other end of the nut and the case. This allows the case to be in contact with the first cushioning member 16 and not with the nut. In addition, the box body is provided with a through hole for the screw to pass through, and the screw is not contacted with the box body.

In this embodiment, the motor base 12 is fixedly connected to the fastening member 18, and the fastening member 18 is completely embedded in the first shock absorbing member 16, so that the fastening member 18 does not directly contact with the box body, and the motor base 12 is flexibly connected with the box body.

Further, the box body comprises a shell (not shown), an inner container 19 and a foaming material, wherein a cavity is formed between the inner container and the shell, the foaming material is located in the cavity, and the first damping structure is fixed in the cavity in a foaming mode.

In order to facilitate the fixing of the first shock absorbing member 16, the first shock absorbing structure further includes a connecting member 20 fixed to the case and having a certain rigidity, and the first shock absorbing member 16 is disposed on the connecting member 20. The connecting piece 20 is provided with a hole communicated with the through hole on the box body, and the rigidity of the connecting piece 20 is greater than that of the first damping piece 16. In order to further improve the damping effect and reduce noise, a first damping pad (not shown) is further disposed between the motor base 12 and the box, and a screw (not shown) passes through the motor base 12, the first damping pad (not shown), the box and the connecting member 20, and finally is connected to the fastening member 18.

Specifically, the connecting member 20 is provided with a receiving groove 24 adapted to the outer periphery of the first damping member 16, and the first damping member 16 is located in the receiving groove 24. The peripheral contour of the first damper 16 substantially corresponds to the peripheral contour of the motor mount 12 facing said first damper 16.

Specifically, the connecting member 20 and the first cushioning member 16 are foamed and fixed in the cavity. In order to facilitate the positioning of the connecting piece 20, a positioning structure for positioning the connecting piece 20 is arranged on one side of the inner container 19 facing the cavity. During assembly, the fastening member 18 is first clamped into the first shock absorbing member 16, the first shock absorbing member 16 is then placed in the accommodating groove 24, the assembly formed by the fastening member 18, the first shock absorbing member 16 and the connecting member 20 is then connected with the positioning structure on the inner container 19 in a matching mode, and finally foaming is carried out. Therefore, the first damping structure can be stably and reliably fixed in the box body and is positioned in the cavity, and the volume in the box body cannot be occupied.

The household appliance further comprises a shelf (not shown) arranged in the chamber and a lifting device 26 connected with the shelf and used for lifting the shelf, wherein the motor device 10 is connected with the lifting device 26 to drive the lifting device 26 to move. Specifically, the lifting device 26 includes a lead screw 28 connected to the motor body 14 and a nut member 30 threadedly engaged with the lead screw 28, wherein the nut member 30 is fixed relative to the shelf. The nut member 30 is provided with an internal thread portion 32 to be fitted to the lead screw 28. The technology is suitable for smart families and can automatically realize the lifting adjustment of the shelf.

The elevating device 26 further includes a guide rod 34 fixed with respect to the case, and the nut member 30 is provided with a guide hole 36 through which the guide rod 34 passes. In order to stabilize the lifting of the shelf, the extension length of the guide hole 36 in the longitudinal direction is greater than the extension length of the internal thread portion 32 in the longitudinal direction. The nut member 30 is provided in a substantially L-shape. The lifting device 26 further comprises a support member 38 fixedly connected with the nut member 30, the nut member 30 is provided with a protrusion 40 extending in the longitudinal direction, the support member 38 is provided with a U-shaped portion 42 covering the outer side of the protrusion 40, an upper connecting portion 44 connected with the U-shaped portion 42 and a side portion 46 connected with the upper connecting portion 44, the upper connecting portion 44 is provided with a light hole 45 for the guide rod 34 to pass through, and the diameter of the light hole 45 is prior to that of the guide hole 36. The diameter of the guide hole 36 is set large to facilitate quick installation between the nut member 30 and the guide rod 34, and the diameter of the unthreaded hole 45 is set small to provide better guidance of the nut member 30. And the side portions 46 are fixedly connected to the shelf.

One end of the guide rod 34 is fixedly connected to the box body, and the other end of the guide rod 34 is fixedly connected to the motor base 12.

The household appliance further comprises an upper mounting seat 48 fixedly arranged relative to the box body, one end of the lead screw 28 is connected to the motor body 14, the other end of the lead screw 28 is rotatably connected to the upper mounting seat 48, the household appliance further comprises a second damping structure, the second damping structure comprises a second damping piece 50 which is arranged on the box body and has certain flexibility and a fixing piece 52 which is embedded in the second damping piece 50 and has certain rigidity, the upper mounting seat 48 is fixedly connected to the fixing piece 52, and the periphery of the fixing piece 52 is completely coated by the second damping piece 50 in the radial direction. A bearing 53 is provided between the lead screw 28 and the upper mount 48 to ensure stable rotation of the lead screw 28 relative to the upper mount 48.

The outer periphery of the fixing member 52 perpendicular to the axial direction of the fastener 18 is entirely covered with the second damper 50, and one end of the fixing member 52 is rigidly connected to the upper mount 48 by a fastening screw (not shown) without being covered with the second damper 50. The other end of the fixing member 52 may be disposed to be entirely covered by the second damper 50 or may be disposed to be partially covered by the second damper 50, but in any case, it is sufficient that a certain distance is secured between the other end of the fixing member 52 and the case. This allows the case to be in contact with the second shock absorbing members 50 and not in contact with the fixing member 52. In the preferred embodiment, the second shock absorbing member 50 is also provided as a rubber member. Of course, other flexible materials can be used for the second shock absorbing member 50. In addition, the box body is provided with a through hole for the fastening screw to pass through, and the fastening screw is not contacted with the box body. Also, for the sake of illustration, the fixing member 52 is exploded from the second cushioning member 50, and the fixing member 52 is embedded in the second cushioning member 50 as a whole in the actual product.

The fixture 52 is a large metal plate. Specifically, the volume of the securing member 52 is greater than the volume of the securing member 18. Preferably, the fixing member 52 is a square metal plate. The fixing member 52 is provided with an internal thread to which the fastening screw is coupled. The fixture 52 is provided as a large metal plate rather than as a smaller nut. The fixing member 52 can better bear the weight, and can still have good damping effect when the shelf moves up and down to bear heavy weight of about 20Kg, thereby preventing the shelf from falling off. Furthermore, the first shock-absorbing structure of lower part sets up fastener 18 that is used for fixed motor and is less piece metal, and this fastener 18 does not play the bearing effect, when playing the fixed action, designs little displacement volume in addition to can play the cushioning effect better.

Further, the second shock-absorbing structure is also fixed in a foaming manner in the cavity between the outer shell and the inner container 19. Specifically, the second damper 50 is disposed on the connecting member 20, an accommodating groove 54 adapted to an outer circumference of the second damper 50 is disposed on the connecting member 20, and the second damper 50 is disposed in the accommodating groove 54. The second shock absorbing member 50 is generally designed in a square shape.

Further, a second shock pad 56 is arranged between the upper mounting seat 48 and the box body, and a fastening screw penetrates through the upper mounting seat 48, the second shock pad 56, the box body and the connecting piece 20 and is finally matched and connected with the fixing piece 52.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A household appliance comprises a box body defining a compartment and a motor device arranged on the box body, it is characterized in that the household appliance also comprises a shelf arranged in the chamber and a lifting device which is connected with the shelf and can lift the shelf, the motor device is connected with the lifting device to drive the lifting device to move, the household appliance also comprises an upper mounting seat which is fixedly arranged relative to the box body, the upper mounting seat is connected with the lifting device, the upper mounting seat and the motor device are positioned at two ends of the lifting device, the household appliance also comprises a second damping structure, the second shock-absorbing structure comprises a second shock-absorbing part and a fixing part, wherein the second shock-absorbing part is arranged on the box body and has certain flexibility, the fixing part is embedded in the second shock-absorbing part, and the upper mounting seat is fixedly connected with the fixing part.

2. The household appliance according to claim 1, wherein said lifting means comprise a threaded spindle connected to said motor means and a nut member in threaded engagement with said threaded spindle, said nut member being immovable with respect to said shelf.

3. The household appliance according to claim 2, wherein the lifting means further comprises a guide rod fixed with respect to the cabinet, and the nut member is provided with a guide hole through which the guide rod passes.

4. The household appliance according to claim 3, wherein one end of the guide rod is fixedly connected to the cabinet, and the other end of the guide rod is fixedly connected to the motor device.

5. The household appliance according to claim 2, wherein the motor device comprises a motor base and a motor body fixed to the motor base, one end of the lead screw is connected to the motor body, and the other end of the lead screw is rotatably connected to the upper mounting base.

6. The household appliance according to claim 1, further comprising a first shock-absorbing structure, wherein the first shock-absorbing structure comprises a first shock-absorbing member having a certain flexibility and disposed in the box, and at least one fastening member embedded in the first shock-absorbing member, the motor device is fixedly connected to the fastening member, the connection direction of the motor device and the fastening member is defined as an axial direction, the direction perpendicular to the axial direction is a radial direction, and in the radial direction, the outer periphery of the fastening member is completely covered by the first shock-absorbing member,

7. the household appliance according to claim 6, wherein the box body comprises a shell, an inner container forming a cavity with the shell, and a foaming material positioned in the cavity, and the first damping structure is fixed in the cavity in a foaming manner.

8. The household appliance according to claim 1, wherein the box body comprises a shell, an inner container forming a cavity with the shell, and a foaming material positioned in the cavity, and the second damping structure is fixed in the cavity in a foaming manner.

9. The household appliance according to claim 1, wherein a second shock pad is further disposed between the upper mounting seat and the box body.

10. The household appliance according to any one of claims 1 to 9, wherein the household appliance is a refrigerator.