CN113531980B

CN113531980B - Household appliance

Info

Publication number: CN113531980B
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: 2023-05-16
Anticipated expiration: 2040-01-09
Also published as: CN113531980A; CN111189275A; WO2021139118A1; CN111189275B

Abstract

The invention discloses a household appliance, which comprises a box body defining a compartment, a motor device arranged in the box body, a shelf arranged in the compartment, a lifting device connected with the shelf and used for lifting the shelf, an upper mounting seat fixedly arranged relative to the box body and connected with the lifting device, and a second damping structure, wherein the second damping structure comprises a second damping part which is arranged in the box body and has certain flexibility, and a fixing part embedded in the second damping 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 appliance

The present application is a divisional application with application number 202010022538.8, application date 2020, 1 month and 9 days, and the name of the present application is household appliances.

Technical Field

The present invention relates to a household appliance.

Background

A refrigerator includes a cabinet and a door operable to open/close the cabinet, in which shelves and/or ice-making units are generally provided. In order to lift the shelf and rotate the ice making grid, a motor is required to be arranged in the box body. The motor is fixedly connected to the box body through screws, and a shock pad is arranged between the motor and the box body for reducing vibration caused by motor operation. But even if the shock pad is arranged, the motor is still in rigid connection with the box body, the shock absorption effect is very poor, and the noise is 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.

To achieve one of the above objects, an embodiment of the present invention provides a household electrical appliance including a housing defining a compartment and a motor device provided to the housing, the motor device including a motor housing and a motor body fixed to the motor housing, wherein the household electrical appliance further includes a first shock-absorbing structure including a first shock-absorbing member provided to the housing and having a certain flexibility and at least one fastening member embedded in the first shock-absorbing member, the motor housing is fixedly connected to the fastening member, a connection direction of the motor housing 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 circumference of the fastening member is completely covered by the first shock-absorbing 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 case and having a certain rigidity, and the first shock absorbing member is provided to the connecting member.

As a further improvement of the embodiment of the invention, the connecting piece is provided with a containing groove matched with the periphery of the first shock absorbing piece, and the first shock absorbing piece is positioned in the containing groove.

As a further improvement of the embodiment of the invention, the household appliance further comprises a shelf arranged in the compartment and a lifting device connected with the shelf and used for lifting the shelf, and the motor is connected with the lifting device to drive the lifting device to move.

As a further development of the embodiment of the invention, the lifting device comprises a threaded spindle connected to the motor body and a nut part in threaded engagement with the threaded spindle, the nut part being stationary relative to the shelf.

As a further improvement of the embodiment of the invention, the lifting device further comprises a guide rod fixed relative to the box body, and the nut member is provided with a guide hole for the guide rod to pass through.

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

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

As a further improvement of the embodiment of the invention, the box body comprises a shell, a liner and foaming materials, wherein a cavity is formed between the liner and the shell, the foaming materials are positioned in the cavity, and the first damping structure is fixedly foamed in the cavity.

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 invention, the two second limit structures and the two third limit structures are respectively arranged near the left side edge and the right side edge

Compared with the prior art, the invention has the beneficial effects that: the motor cabinet is fixedly connected to the fastening piece, the fastening piece is completely embedded in the first damping piece, so that the fastening piece is not in direct contact with the box body, the motor cabinet and the box body are in flexible connection, and the damping effect of the motor of the household appliance is good, and noise is greatly reduced.

Drawings

Fig. 1 is a front view of a home appliance in an embodiment of the present invention;

fig. 2 is a perspective view of the home appliance of fig. 1;

fig. 3 is another directional perspective view of the home appliance of fig. 2;

fig. 4 is an exploded perspective view of the home appliance of fig. 1, where the inner container of the cabinet is removed;

fig. 5 is another direction exploded perspective view of the home 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 invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the 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. refer to the orientation or positional relationship shown in the drawings, generally with reference to the normal use state of the household appliance, and do not indicate that the referred position or element must have a specific orientation.

Moreover, it should 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 used only to distinguish these descriptive objects from each other. For example, the first shock absorbing structure may be referred to as a second shock absorbing structure, and likewise, the second shock absorbing structure may be referred to as a first shock absorbing structure, without departing from the scope of this application.

As shown in fig. 1 to 5, the present invention discloses a household appliance, and in particular, in this embodiment, the household appliance is a refrigerator. Of course, the household appliance may also be a refrigerator, a freezer, a refrigerator, etc. The refrigerator includes a cabinet and a door for opening or closing the cabinet. The household appliance comprises a housing defining a compartment and a motor means 10 provided in the housing, the motor means 10 being adapted to drive any other device or structure provided in the housing and requiring the motor means 10 to be driven, such as ice making devices, shelves, etc. The motor apparatus 10 includes a motor housing 12 and a motor body 14 fixedly coupled to the motor housing 12.

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

In the preferred embodiment, the first shock absorbing member 16 is a rubber member. Of course, other materials having a certain flexibility may be used for the first damping member 16. The number of fasteners 18 is two, although other numbers of fasteners 18 may be provided as desired for a particular design. Preferably, the fastener 18 is a nut that is embedded in the first damping member 16. The outer circumference of the nut perpendicular to the axial direction thereof is entirely covered by the first shock absorbing member 16, and one end of the nut is coupled with a screw without being covered by the first shock absorbing member 16, the screw being coupled with the nut through the motor housing 12. The other end of the nut may be provided to be entirely covered by the first shock absorbing member 16, or may be provided to be partially covered by the first shock absorbing member 16, but in any case, it is provided that a certain distance is ensured between the other end of the nut and the case. So that the case is in contact with the first damping member 16 and not in contact 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 damping member 16, so that the fastening member 18 is not in direct contact with the case, and therefore the motor base 12 is flexibly connected with the case, and the damping effect of the motor of the household appliance is good, and the noise is greatly reduced.

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

To facilitate the fixing of the first damping member 16, the first damping structure further includes a connecting member 20 fixed to the case and having a certain rigidity, and the first damping member 16 is disposed on the connecting member 20. The connecting member 20 is provided with a hole penetrating the through hole of the case body, and the connecting member 20 is more rigid than the first shock absorbing member 16. In order to further improve the damping effect and reduce noise, a first damping pad (not shown) is further arranged between the motor base 12 and the box body, and screws (not shown) penetrate through the motor base 12, the first damping pad (not shown), the box body and the connecting piece 20 and are finally matched with the fastening piece 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 outer circumferential profile of the first shock absorbing member 16 substantially coincides with the outer circumferential profile of the motor mount 12 facing the first shock absorbing member 16.

Specifically, both the connector 20 and the first shock absorbing member 16 are foam-secured within the cavity. To facilitate positioning of the connector 20, the side of the liner 19 facing the cavity is provided with a positioning structure for positioning the connector 20. When assembling, the fastener 18 is clamped into the first damping member 16, the first damping member 16 is placed in the accommodating groove 24, the assembly formed by the fastener 18, the first damping member 16 and the connecting member 20 is matched with the positioning structure on the liner 19, and finally foaming is performed. 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 compartment and a lifting device 26 connected with the shelf and lifting the shelf, and 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 screw rod 28 connected to the motor body 14 and a nut member 30 threadedly coupled to the screw rod 28, the nut member 30 being stationary with respect to the shelf. The nut member 30 is provided with an internal thread portion 32 which is coupled to the screw shaft 28. The technology is suitable for intelligent families, and can automatically realize lifting adjustment of the shelf.

The lifting device 26 further comprises a guide rod 34 fixed relative 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 guide hole 36 has a longer extension in the longitudinal direction than the female screw portion 32. The nut member 30 is provided in a substantially L-shape. The lifting device 26 further comprises a supporting member 38 fixedly connected with the nut member 30, the nut member 30 is provided with a protruding portion 40 extending along the longitudinal direction, the supporting member 38 is provided with a U-shaped portion 42 covering the outer side of the protruding portion 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 an optical hole 45 for the guide rod 34 to pass through, and the diameter of the optical hole 45 is earlier than that of the guide hole 36. The diameter of the guide hole 36 is set larger for facilitating quick installation between the nut member 30 and the guide rod 34, and the diameter of the light hole 45 is set smaller for better guiding of the nut member 30. While the side 46 is 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 screw rod 28 is connected to the motor body 14, the other end of the screw rod 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 part 50 which is arranged on the box body and has certain flexibility and a fixing part 52 which is embedded in the second damping part 50 and has certain rigidity, the upper mounting seat 48 is fixedly connected to the fixing part 52, and the periphery of the fixing part 52 is completely covered by the second damping part 50 in the radial direction. A bearing 53 is provided between the screw 28 and the upper mount 48 to ensure stable rotation of the screw 28 relative to the upper mount 48.

The outer circumference of the fixing member 52 perpendicular to the axial direction of the fastener 18 is entirely covered by the second shock absorbing member 50, and one end of the fixing member 52 is not covered by the second shock absorbing member 50 but is rigidly connected to the upper mount 48 by a fastening screw (not shown). The other end of the fixing member 52 may be entirely covered by the second shock absorbing member 50 or may be partially covered by the second shock absorbing member 50, but in any case, it is only necessary to secure a certain distance between the other end of the fixing member 52 and the case. So that the case is in contact with the second shock absorbing member 50 and not in contact with the fixing member 52. In the present preferred embodiment, the second shock absorbing member 50 is also provided as a rubber member. Of course, other materials with certain flexibility 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 ease of illustration, the securing member 52 is shown as being separate from the second shock absorbing member 50, with the actual product being that the securing member 52 is embedded in the second shock absorbing member 50 as a whole.

The fixing member 52 is a large metal plate. Specifically, the volume of the securing member 52 is greater than the volume of the fastener 18. Preferably, the fixing member 52 is a square metal plate. The fixing member 52 is provided with female threads to which the fastening screw is coupled. The fixing member 52 is provided as a large metal plate instead of as a smaller nut. The fixing piece 52 can bear better, so that the shelf is guaranteed to have good damping effect when the shelf moves up and down to bear a heavy weight of about 20Kg, and the shelf is prevented from falling off. Furthermore, the first damping structure of the lower part is provided with a fastener 18 for fixing the motor, which is made of smaller metal, and the fastener 18 does not play a bearing role, and simultaneously plays a fixing role, and a small displacement is designed, so that the damping effect can be better achieved.

Further, the second shock absorbing structure is also foam-fastened in the cavity between the outer shell and the inner container 19. Specifically, the second shock absorbing member 50 is disposed on the connecting member 20, the connecting member 20 is provided with a receiving groove 54 adapted to the outer periphery of the second shock absorbing member 50, and the second shock absorbing member 50 is disposed in the receiving groove 54. Typically, the second shock absorbing member 50 is designed in a square shape.

Further, a second shock pad 56 is further disposed between the upper mounting seat 48 and the box body, and fastening screws pass through the upper mounting seat 48, the second shock pad 56, the box body and the connecting piece 20, and finally are coupled with the fixing piece 52.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims

1. The household appliance comprises a box body defining a compartment and a motor device arranged on the box body, wherein the motor device comprises a motor seat and a motor body fixed on the motor seat, and the household appliance is characterized by further comprising a first damping structure, the first damping structure comprises a first damping part which is arranged on the box body and has certain flexibility, at least one fastening piece which is embedded in the first damping part, and a connecting piece which is fixed on the box body and has certain rigidity, the first damping part is arranged on the connecting piece, a containing groove which is matched with the periphery of the first damping part is arranged on the connecting piece, the first damping part is arranged in the containing groove, the motor seat is fixedly connected with the fastening piece, the connecting direction of the motor seat and the fastening piece is defined as axial, the direction perpendicular to the axial direction is radial, in the radial direction, the periphery of the fastening piece is completely covered by the first shock absorbing piece, the household appliance further comprises a shelf arranged in the compartment and a lifting device which is connected with the shelf and lifts the shelf, the motor device is connected with the lifting device to drive the lifting device to move, the lifting device comprises a screw rod connected with the motor body and a nut piece which is in threaded fit with the screw rod, the nut piece is fixed relative to the shelf, the household appliance further comprises an upper mounting seat which is fixedly arranged relative to the box body, one end of the screw rod is connected with the motor body, the other end of the screw rod is rotatably connected with the upper mounting seat, the household appliance further comprises a second shock absorbing structure, the second shock-absorbing structure comprises a second shock-absorbing part which is arranged on the box body and has certain flexibility and a fixing part which is embedded in the second shock-absorbing part, the upper mounting seat is fixedly connected with the fixing part, and the periphery of the fixing part is completely covered by the second shock-absorbing part in the radial direction.

2. The household appliance according to claim 1, wherein the lifting device further comprises a guide rod fixed relative to the case, and the nut member is provided with a guide hole through which the guide rod passes.

3. The household appliance according to claim 2, wherein one end of the guide rod is fixedly connected to the case, and the other end of the guide rod is fixedly connected to the motor base.

4. The household appliance of claim 1, wherein the housing comprises a shell, a liner forming a cavity with the shell, and a foaming material positioned in the cavity, and the first shock absorbing structure is foamed and fixed in the cavity.

5. The household appliance according to any one of claims 1 to 4, wherein the household appliance is a refrigerator.