CN215668612U - Washing machine backplate and washing machine - Google Patents
Washing machine backplate and washing machine Download PDFInfo
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- CN215668612U CN215668612U CN202121867547.3U CN202121867547U CN215668612U CN 215668612 U CN215668612 U CN 215668612U CN 202121867547 U CN202121867547 U CN 202121867547U CN 215668612 U CN215668612 U CN 215668612U
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- washing machine
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- back plate
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Abstract
The utility model discloses a washing machine backboard and a washing machine, wherein the washing machine backboard comprises: the back plate body is provided with a cavity corresponding to a motor of the washing machine; the micro-perforated plate is installed on the back plate body and arranged at the cavity. The washing machine back plate and the washing machine effectively solve the problem that the washing machine in the prior art generates high noise when running at high speed.
Description
Technical Field
The utility model relates to the technical field of household appliances, in particular to a washing machine back plate and a washing machine.
Background
In the prior art, with the continuous development of the washing machine technology, the washing machine has more and more functions at present. The problems of noise, vibration and the like also come with the convenience of users. When the washing machine is operated at a high speed (such as a dehydration process of the washing machine), the most sensitive noise of a user is middle and high frequency noise from the motor, and the middle and high frequency noise is not easy to be absorbed by the traditional sound absorption material.
In summary, the present invention is to solve the problem of loud noise when the washing machine is operated at high speed.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a washing machine back plate and a washing machine, and aims to solve the problem that the noise is high when the washing machine in the prior art runs at a high speed.
To achieve the above object, the present invention provides a back plate for a washing machine, comprising: the back plate body is provided with a cavity corresponding to a motor of the washing machine; the micro-perforated plate is installed on the back plate body and arranged at the cavity.
Further, the opening of the cavity faces to the washing machine motor, and the micro-perforated plate covers the opening.
Furthermore, a sound absorption material is arranged in a space enclosed between the micro-perforated plate and the cavity.
Furthermore, a partition board is arranged in the cavity, the partition board divides the space into a plurality of sound absorption areas, and a sound absorption material is arranged in each sound absorption area.
Furthermore, the micro-perforated plate is provided with perforations corresponding to the part of the plate of each sound absorption area.
Further, the sound absorbing material comprises one or more of: sound-absorbing cotton, EVA plastic and glass fiber.
Further, the microperforated panel has a plurality of hole distribution regions, each hole distribution region being provided with a respective perforation aperture and hole pitch.
According to another aspect of the present invention, there is provided a washing machine including the washing machine back plate described above.
The micropunch plate is in cavity department, for the washing machine motor that produces the noise, leave certain cavity behind the micropunch plate, just so become the micropunch plate sound absorbing structure, the micropunch plate silencer is the novel silencer of utilizing the micropunch plate sound absorbing structure to make, can be used for the noise elimination to fall, the frequency section of making an uproar that falls of micropunch plate is medium-high frequency, match with the medium-high frequency noise that washing machine motor produced, reduce the electromagnetic noise of motor on the follow transfer path, the noise that washing machine produced when high-speed operation has been absorbed effectively, improve the silence travelling comfort of complete machine. The micro-perforated plate is used as a clean sound absorption structure with low sound quality and high sound resistance, and compared with the traditional porous sound absorption material, the micro-perforated plate has the characteristics of high temperature resistance, high-speed airflow impact resistance and environmental protection. For different noise reduction frequencies, the method can also be realized by adjusting the parameters (the aperture, the plate thickness and the perforation rate) of the micro-perforated plate and the depth of a cavity at the back of the micro-perforated plate.
Drawings
FIG. 1 is an exploded view of a back plate of a washing machine according to an embodiment of the present invention;
fig. 2 is a schematic view of the internal structure of a back plate of a washing machine according to an embodiment of the present invention.
Detailed Description
The utility model is described in further detail below with reference to the figures and the examples, but without limiting the utility model.
Referring to fig. 1 and 2, according to an embodiment of the present invention, there is provided an embodiment of a back plate for a washing machine, the back plate for a washing machine includes a back plate body 1 and a micro perforated plate 4, and a cavity 3 corresponding to a motor 2 of a washing machine is formed on the back plate body 1. The micro-perforated plate 4 is installed on the back plate body 1, and the micro-perforated plate 4 is arranged at the cavity 3.
The cavity 3 is formed by the protrusion of the back plate body 1 towards the outside of the washing machine, and the opening of the cavity 3 faces the inside of the washing machine. The micro-perforated plate 4 is connected to the back plate body in a clamping, bonding and other modes, a plurality of micro-holes are drilled on the thin metal plate with the thickness smaller than 1mm, the hole diameter of each micro-hole is about 0.5-1 mm generally, the perforation rate is between 1% and 3%, and the micro-perforated plate is a sound absorption element with high sound resistance and low sound quality.
Preferably, the cavity 3 is open towards the washing machine motor 2, and the microperforated plate 4 covers the opening. The utility model aims to reduce larger noise generated in the dehydration process of the washing machine, and improves the design aiming at the existing washing machine backboard, a cavity with the depth of several centimeters is formed at the backboard body opposite to the motor, a micro-perforated plate 4 is laid on the side close to the motor and made of aluminum, the orientation of the micro-perforated plate 4 is opposite to the motor, and meanwhile, the micro-perforated plate 4 covers the opening of the cavity 3.
In order to further increase the noise reduction effect, a sound absorption material is arranged in the space enclosed between the micro-perforated plate 4 and the cavity 3.
Referring to fig. 1 and 2, a partition plate 5 is disposed in the cavity 3, the partition plate 5 divides the space into a plurality of sound absorption regions 6, and a sound absorbing material is disposed in each sound absorption region 6. The shape of the partition board 5 can be various, sound absorption areas with different shapes and different arrangement combinations are separated, and the shape of the partition board 5 can be a Chinese character 'mi' shape or a cross shape. The sound absorbing material comprises one or more of: sound-absorbing cotton, EVA plastic and glass fiber. Through using the sound absorbing material of different grade type and thickness, the cavity degree of depth behind the micropunch plate 4 of indirect change, every sound absorption region is sound absorption each other noninterference separately, through above optimization, can realize the purpose of making an uproar falls in the medium-high frequency wide frequency section.
The microperforated panel 4 has perforations in a portion of the panel corresponding to each sound absorbing region 6. The partial panels corresponding to each sound absorption area 6 can be provided with different perforation hole diameters and hole distances, and can be partially or completely the same.
In this embodiment, the partition board is a T-shaped board, the specific shape can be shown in fig. 1, the partition board divides the space into 3 sound absorption areas, and at the same time, the partition board also divides the micro-perforated plate 4 into three partial plates with different areas, and the perforation aperture and the hole pitch of each partial plate are different. The aperture and the hole distance of the perforated holes on the part of the plate above the partition plate are the largest, and the sound-absorbing cotton 7 is placed in the corresponding sound-absorbing area. The hole diameter and the hole distance of the perforated holes of the left plate and the right plate which are positioned below the partition plate are sequentially decreased progressively, EVA plastic 8 and glass fiber 9 are respectively placed in the corresponding sound absorption areas, and the sound absorption cotton 7, the EVA plastic 8 and the glass fiber 9 are all adhered to the inner surface of the cavity.
For different noise reduction frequencies, the method can be generally realized by adjusting parameters (aperture, plate thickness and perforation rate) of the micro-perforated plate and the depth of a cavity behind the micro-perforated plate. This embodiment divides three region with the microperforated panel, makes regional aperture, perforation rate all different separately, then through the sound absorbing material who uses different grade type and thickness, indirectly changes the degree of depth of cavity behind the combined type microperforated panel, and three regional sound absorption each other noninterference separately can realize the purpose of making an uproar falls in medium-high frequency width frequency section through above optimization.
Preferably, the microperforated panel 4 has a plurality of hole distribution areas, each provided with a respective perforation aperture and hole pitch. That is to say, perforation aperture and hole interval in every cloth hole region all are different, and a plurality of cloth hole regions can correspond different noise reduction frequency, and the setting can make micro-perforated plate 4 correspond more extensive frequency like this, promotes the noise reduction effect of washing machine backplate.
The utility model also provides an embodiment of the washing machine, and the washing machine comprises the washing machine back plate of the embodiment. Because the back plate of the washing machine absorbs noise and is matched with medium-high frequency noise generated by a motor of the washing machine, the electromagnetic noise of the motor is reduced from a transmission path, the noise generated when the washing machine runs at a high speed is effectively absorbed, and the silencing comfort of the whole machine is improved. The back plate of the washing machine is simple in structure, convenient to install and easy to realize, and can reduce electromagnetic noise generated by the motor in the dehydration process to the maximum extent under the condition of less influence on other performances, so that the noise of the whole machine is greatly improved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
Of course, the above is a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and refinements can be made without departing from the basic principle of the utility model, and these modifications and refinements are also considered to be within the protective scope of the utility model.
Claims (8)
1. A washing machine back plate, comprising:
the washing machine comprises a back plate body (1), wherein a cavity (3) corresponding to a washing machine motor (2) is formed in the back plate body (1);
the micro-perforated plate (4) is installed on the back plate body (1), and the micro-perforated plate (4) is arranged at the cavity (3).
2. Washing machine backplate according to claim 1, characterized in that the cavity (3) is open towards the washing machine motor (2) and the microperforated plate (4) covers the opening.
3. Washing machine backplate according to claim 2, in which a sound-absorbing material is arranged in the space enclosed between the microperforated panel (4) and the cavity (3).
4. A washing machine back plate according to claim 3, characterized in that a partition (5) is arranged in the cavity (3), the partition (5) dividing the space into a plurality of sound absorbing areas (6), a sound absorbing material being arranged in each sound absorbing area (6).
5. Washing machine backplate according to claim 4, in which the microperforated plates (4) are perforated in a part of the plate corresponding to each sound-absorbing area (6).
6. A washing machine backplate according to claim 3 or 4 in which the sound absorbing material comprises one or more of: sound-absorbing cotton, EVA plastic and glass fiber.
7. Washing machine backplate according to claim 1, characterized in that the microperforated plate (4) has a plurality of cloth hole areas, each cloth hole area being provided with a respective perforation aperture and hole pitch.
8. A washing machine characterized by comprising the washing machine back plate of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121867547.3U CN215668612U (en) | 2021-08-10 | 2021-08-10 | Washing machine backplate and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121867547.3U CN215668612U (en) | 2021-08-10 | 2021-08-10 | Washing machine backplate and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215668612U true CN215668612U (en) | 2022-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121867547.3U Active CN215668612U (en) | 2021-08-10 | 2021-08-10 | Washing machine backplate and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215668612U (en) |
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2021
- 2021-08-10 CN CN202121867547.3U patent/CN215668612U/en active Active
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