CN219908199U - Variable damping vibration damper and washing machine - Google Patents
Variable damping vibration damper and washing machine Download PDFInfo
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- CN219908199U CN219908199U CN202320510205.9U CN202320510205U CN219908199U CN 219908199 U CN219908199 U CN 219908199U CN 202320510205 U CN202320510205 U CN 202320510205U CN 219908199 U CN219908199 U CN 219908199U
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- friction
- cylinder
- electromagnet
- variable damping
- damping vibration
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- 238000013016 damping Methods 0.000 title claims abstract description 60
- 238000005406 washing Methods 0.000 title claims abstract description 23
- 239000006096 absorbing agent Substances 0.000 claims abstract description 29
- 230000035939 shock Effects 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims description 21
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000000806 elastomer Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 208000005156 Dehydration Diseases 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The utility model belongs to the technical field of washing machines, and discloses a variable damping shock absorber and a washing machine. The variable damping vibration damper comprises a supporting cylinder, a friction cylinder, a plurality of friction components and a detection unit. One end of the supporting cylinder is provided with an electromagnet, the electromagnet is electrified with current, and the magnetic force of the electromagnet changes according to the magnitude of the current. The friction cylinder part is sleeved at one end of the support cylinder, which is provided with an electromagnet, and the support cylinder and the friction cylinder can move relatively along the axial direction of the support cylinder. The friction components are arranged in the friction cylinder, the friction components can be attracted by the electromagnet, and the friction components attracted to the electromagnet can rub the outer wall of the friction cylinder to generate friction force. The detection unit can read the load eccentric value and the outer cylinder vibration value, and the current changes according to the load eccentric value and the outer cylinder vibration value. The variable damping shock absorber can adjust damping force according to the real-time eccentric value and the vibration value of the load, and can achieve the purposes of reducing vibration and noise in a resonance interval and a high-speed stable interval of the washing machine.
Description
Technical Field
The utility model relates to the technical field of washing machines, in particular to a variable damping shock absorber and a washing machine.
Background
When the washing machine operates the dehydrating process, the load is rotated to cause eccentricity, resulting in large vibration of the drum part. The existing washing machine is generally provided with a damper between the outer cylinder and the box body to reduce vibration, but the damping force of the damper is generally invariable, so that the damper still provides larger damping force to generate larger noise after the rotating speed passes through the resonance point, or the damping force of the damper is smaller to effectively reduce vibration when the eccentricity is larger, thereby causing the outer cylinder to collide with the box body to generate displacement.
The existing shock absorber comprises an outer sleeve and an inner piston rod, the inner piston rod is connected with an inner cylinder and an outer cylinder of the washing machine, the outer sleeve is connected with a box body, and when the outer cylinder vibrates, the piston rod moves in the outer sleeve along the axial direction and generates friction energy consumption with a damping ring arranged in the outer cylinder, so that a shock absorption effect is exerted. The damping force of the shock absorber can be kept constant at any stage, the vibration noise control requirement of the washing machine can not be completely met, and the damping force can not be adjusted according to the real-time eccentric degree and the vibration value of the load.
Accordingly, there is a need to provide a variable damping vibration absorber and a washing machine to solve the above problems.
Disclosure of Invention
The utility model aims to provide a variable damping shock absorber which can adjust the damping force according to the real-time eccentricity degree and the vibration value of a load and can realize the purposes of reducing vibration and noise in a resonance interval and a high-speed stable interval of a washing machine.
To achieve the purpose, the utility model adopts the following technical scheme:
a variable damping shock absorber comprising:
the device comprises a supporting cylinder, wherein one end of the supporting cylinder is provided with an electromagnet, the electromagnet is electrified with current, and the magnetic force of the electromagnet changes according to the current;
the friction cylinder is partially sleeved at one end of the support cylinder, provided with an electromagnet, and the support cylinder and the friction cylinder can relatively move along the axial direction of the support cylinder;
the friction assemblies are arranged in the friction cylinder and are arranged along the length direction of the friction cylinder, the friction assemblies can be attracted by the electromagnet, and the friction assemblies adsorbed on the electromagnet can rub the outer wall of the friction cylinder to generate friction force;
and the detection unit can read the load eccentric value and the outer cylinder vibration value, and the current magnitude changes according to the load eccentric value and the outer cylinder vibration value.
Optionally, the friction assembly includes an adsorption block, and after the electromagnet is electrified, the adsorption block can be adsorbed by the electromagnet.
Optionally, the adsorption block is an iron block.
Optionally, a cushion pad is disposed on a surface of the adsorption block facing the electromagnet.
Optionally, the cushion pad is an elastomer.
Optionally, the adsorption block overcoat is equipped with the friction ring, the outer wall of friction ring with the inner wall friction of friction section of thick bamboo produces frictional force.
Optionally, the friction ring is a rubber ring or a resin ring.
Optionally, a first connecting part is arranged at one end of the friction cylinder far away from the supporting cylinder, and the first connecting part is used for being connected with the inner cylinder.
The utility model aims to provide a variable damping vibration absorber which has low vibration and low noise.
To achieve the purpose, the utility model adopts the following technical scheme:
the washing machine comprises an inner cylinder, a box body and the variable damping shock absorber, wherein one end of the variable damping shock absorber is connected with the inner cylinder, and the other end of the variable damping shock absorber is connected with the box body.
Optionally, a bracket is arranged on the box body, and the shock absorber is rotationally connected with the bracket.
The beneficial effects are that:
according to the variable damping shock absorber provided by the utility model, the electromagnet is arranged on the supporting cylinder, the friction cylinder and the supporting cylinder are sleeved, and the friction components are arranged in the friction cylinder, so that after the electromagnet is electrified, the friction components are adsorbed to the electromagnet under the action of the magnetic force of the electromagnet. The quantity of the adsorption friction components can be controlled by adjusting the current of the electromagnet to change the magnetic force. When the friction cylinder and the supporting cylinder relatively move along the axial direction of the friction cylinder, the friction components adsorbed on the electromagnet are in contact friction with the inner wall of the friction cylinder, so that damping force is provided, the quantity of the friction components adsorbed by the electromagnet is different, and the provided damping force is also different, so that the adjustable damping force is realized. The detection element is used for detecting the load eccentric value and the outer cylinder vibration value, so that the current can be adjusted, the damping force can be changed according to the load eccentric value and the outer cylinder vibration value, and the purposes of reducing vibration and noise in a resonance interval and a high-speed stable interval of the washing machine can be achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram of a variable damping shock absorber provided by the present utility model;
FIG. 2 is a schematic view of the friction pack provided by the present utility model;
FIG. 3 is an exploded view of the variable damping vibration absorber provided by the present utility model;
fig. 4 is a flowchart of a dehydrating process of a washing machine provided by the present utility model.
In the figure:
100. a support cylinder; 110. an electromagnet; 120. a second connecting portion; 200. a friction cylinder; 210. a first connection portion; 300. a friction assembly; 310. an adsorption block; 320. a friction ring; 330. and a cushion pad.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Referring to fig. 1 and 2, the present embodiment provides a variable damping vibration absorber including a support cylinder 100, a friction cylinder 200, a plurality of friction assemblies 300, and a detection unit. One end of the support cylinder 100 is provided with an electromagnet 110, the electromagnet 110 is supplied with current, and the magnetic force of the electromagnet 110 changes according to the magnitude of the current. The friction cylinder 200 is partially sleeved at one end of the support cylinder 100 where the electromagnet 110 is arranged, and the support cylinder 100 and the friction cylinder 200 can relatively move along the axial direction of the support cylinder 100. The plurality of friction assemblies 300 are disposed in the friction cylinder 200 and arranged along the length direction of the friction cylinder 200, the friction assemblies 300 can be attracted by the electromagnet 110, and the friction assemblies 300 attracted to the electromagnet 110 can rub against the outer wall of the friction cylinder 200 to generate friction force. The detection unit can read the load eccentric value and the outer cylinder vibration value, and the current changes according to the load eccentric value and the outer cylinder vibration value.
In the variable damping shock absorber, the electromagnet 110 is arranged on the support cylinder 100, the friction cylinder 200 is sleeved with the support cylinder 100, and the friction cylinder 200 is internally provided with the plurality of friction components 300, so that after the electromagnet 110 is electrified, the friction components 300 are adsorbed to the electromagnet 110 under the action of the magnetic force of the electromagnet 110. The number of the adsorption friction members 300 can be controlled by changing the magnetic force by adjusting the current of the electromagnet 110. When the friction cylinder 200 and the support cylinder 100 relatively move along the axial direction, the friction assemblies 300 adsorbed on the electromagnet 110 and the inner wall of the friction cylinder 200 are in contact friction to provide damping force, the quantity of the friction assemblies 300 adsorbed by the electromagnet 110 is different, and the provided damping force is also different, so that the adjustable damping force is realized. The detection element is used for detecting the load eccentric value and the outer cylinder vibration value, so that the current can be adjusted, the damping force can be changed according to the load eccentric value and the outer cylinder vibration value, and the purposes of reducing vibration and noise in a resonance interval and a high-speed stable interval of the washing machine can be achieved.
Referring to fig. 2 and 3, the friction assembly 300 includes a suction block 310, and the suction block 310 can be sucked by the electromagnet 110 after the electromagnet 110 is energized. In this embodiment, the adsorption block 310 is cylindrical, and in other embodiments, the adsorption block 310 may be prismatic, which is not specifically limited herein. Alternatively, the adsorption block 310 may be an iron block, and the adsorption block 310 may be made of other materials that can be adsorbed by the electromagnet 110. It can be understood that the adsorption force needs to be larger than the damping force generated when the shock absorber moves, so that the adsorption state can be maintained.
Further, a cushion 330 is provided on a surface of the adsorption block 310 facing the electromagnet 110. The cushion 330 is provided to reduce noise generated between the friction member 300 and the electromagnet 110 and between the friction member 300 and the friction member 300 upon collision with each other. Alternatively, the cushion 330 is an elastomer, which may be, for example, silicone or foam.
Further, the adsorption block 310 is sleeved with a friction ring 320, and friction force is generated by friction between the outer wall of the friction ring 320 and the inner wall of the friction cylinder 200. Alternatively, the friction ring 320 is a rubber ring or a resin ring, and the friction ring 320 may be made of polyurethane, for example.
Further, referring to fig. 3, an end of the friction cylinder 200 remote from the support cylinder 100 is provided with a first connection portion 210, and the first connection portion 210 is for connection with the inner cylinder. Optionally, an installation part is provided on the inner cylinder, and the first connection part 210 and the installation part are rotatably connected through a connection shaft.
Further, the other end of the support cylinder 100 is provided with a second connection part 120, and the second connection part 120 is used for connection with the case.
The embodiment also provides a washing machine, which comprises an inner cylinder, a box body and the variable damping shock absorber, wherein one end of the variable damping shock absorber is connected with the inner cylinder, and the other end of the variable damping shock absorber is connected with the box body. Optionally, a bracket is arranged on the box body, and the variable damping shock absorber is rotationally connected with the bracket. The variable damping vibration damper in the washing machine adjusts electromagnetic force by changing the energizing current of the electromagnet 110, thereby adsorbing different numbers of friction components 300, achieving the purpose of variable damping of the variable damping vibration damper, determining the real-time damping force according to the real-time eccentric value and the vibration value, and achieving the purpose of reducing vibration and noise of the washing machine in a resonance interval and a high-speed stable interval.
Referring to fig. 4, when the washing machine enters a dehydrating process, it is operated as follows:
s1: after the program is started, judging whether the process is ready to enter a dehydration stage;
s2: if the dehydration stage is not ready to enter, continuing the current program operation;
s3: if the inner cylinder is ready to enter a dehydration stage, the inner cylinder starts to rotate;
s4: the load eccentric value and the outer cylinder vibration value are read in real time through the detection unit;
s5: determining the damping force of the variable damping shock absorber according to the real-time eccentric value and the vibration value;
s6: according to the damping force determined in the step S5, the electromagnet 110 is adjusted to be electrified to adjust electromagnetic force so as to absorb the friction components 300 with the corresponding quantity, and the damping force adjusting effect is realized;
s7: judging whether the dehydration is finished, if not, continuously reading the eccentric value and the vibration value in real time, determining the damping force, and adjusting the current to adjust the damping force; if the dehydration is finished, the inner cylinder stops rotating;
s8: electromagnet 110 current disconnect releases friction pack 300;
s9: the dehydration procedure is ended.
In other embodiments, the operational flow may be set according to the needs of the use. In this real-time example, the setting of the detection unit is a mature prior art in the field, and will not be described in detail here.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. A variable damping shock absorber, comprising:
the device comprises a support cylinder (100), wherein an electromagnet (110) is arranged at one end of the support cylinder (100), current is applied to the electromagnet (110), and the magnetic force of the electromagnet (110) changes according to the magnitude of the current;
the friction cylinder (200) is partially sleeved at one end of the support cylinder (100) where the electromagnet (110) is arranged, and the support cylinder (100) and the friction cylinder (200) can relatively move along the axial direction of the support cylinder (100);
a plurality of friction assemblies (300), wherein the friction assemblies (300) are arranged in the friction cylinder (200) and are arranged along the length direction of the friction cylinder (200), the friction assemblies (300) can be attracted by the electromagnet (110), and the friction assemblies (300) adsorbed on the electromagnet (110) can rub against the outer wall of the friction cylinder (200) to generate friction force;
and the detection unit can read the load eccentric value and the outer cylinder vibration value, and the current magnitude changes according to the load eccentric value and the outer cylinder vibration value.
2. The variable damping vibration damper according to claim 1, wherein the friction assembly (300) comprises an adsorption block (310), the adsorption block (310) being capable of being adsorbed by the electromagnet (110) upon energization of the electromagnet (110).
3. The variable damping vibration absorber according to claim 2, wherein said adsorption block (310) is an iron block.
4. The variable damping vibration absorber according to claim 2, wherein a surface of the adsorption block (310) facing the electromagnet (110) is provided with a cushion pad (330).
5. The variable damping vibration damper according to claim 4, characterized in that the cushion pad (330) is an elastomer.
6. The variable damping vibration absorber according to claim 2, wherein the adsorption block (310) is externally sleeved with a friction ring (320), and friction force is generated by friction between the outer wall of the friction ring (320) and the inner wall of the friction cylinder (200).
7. The variable damping vibration absorber according to claim 6, wherein said friction ring (320) is a rubber ring or a resin ring.
8. The variable damping vibration damper according to claim 1, characterized in that an end of the friction cylinder (200) remote from the support cylinder (100) is provided with a first connection portion (210), the first connection portion (210) being adapted to be connected with an inner cylinder.
9. A washing machine, characterized by comprising an inner cylinder, a box body and a variable damping vibration damper according to any one of claims 1-8, wherein one end of the variable damping vibration damper is connected with the inner cylinder, and the other end of the variable damping vibration damper is connected with the box body.
10. The washing machine as claimed in claim 9, wherein a bracket is provided on the cabinet, and the damper is rotatably coupled to the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320510205.9U CN219908199U (en) | 2023-03-16 | 2023-03-16 | Variable damping vibration damper and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320510205.9U CN219908199U (en) | 2023-03-16 | 2023-03-16 | Variable damping vibration damper and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219908199U true CN219908199U (en) | 2023-10-27 |
Family
ID=88427557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320510205.9U Active CN219908199U (en) | 2023-03-16 | 2023-03-16 | Variable damping vibration damper and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219908199U (en) |
-
2023
- 2023-03-16 CN CN202320510205.9U patent/CN219908199U/en active Active
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