CN113668196A - Footing structure and washing machine - Google Patents
Footing structure and washing machine Download PDFInfo
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- CN113668196A CN113668196A CN202010411343.2A CN202010411343A CN113668196A CN 113668196 A CN113668196 A CN 113668196A CN 202010411343 A CN202010411343 A CN 202010411343A CN 113668196 A CN113668196 A CN 113668196A
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- footing
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- 238000005406 washing Methods 0.000 title claims abstract description 83
- 238000006073 displacement reaction Methods 0.000 claims abstract description 113
- 230000008859 change Effects 0.000 claims abstract description 50
- 238000005096 rolling process Methods 0.000 claims description 80
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 230000005693 optoelectronics Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 2
- 230000018044 dehydration Effects 0.000 abstract description 14
- 238000006297 dehydration reaction Methods 0.000 abstract description 13
- 230000003068 static effect Effects 0.000 description 19
- 208000005156 Dehydration Diseases 0.000 description 12
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/20—Parameters relating to constructional components, e.g. door sensors
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
- D06F34/30—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress characterised by mechanical features, e.g. buttons or rotary dials
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention discloses a bottom foot structure and a washing machine. The invention provides a footing structure, which comprises a footing, wherein a displacement sensing device for detecting the displacement change of the footing is arranged on the footing, the displacement sensing device arranged on the footing can sense the displacement change of the footing caused by vibration, and the footing structure can accurately control the unbalanced displacement caused by the vibration during the dehydration of a washing machine. The invention also provides a washing machine, which comprises a washing machine body and a bottom foot structure, wherein the bottom foot structure comprises four bottom feet arranged at four corners of the washing machine body, and the bottom of at least one bottom foot is provided with a displacement sensing device contacted with the ground.
Description
Technical Field
The invention belongs to the technical field of washing machines, and particularly relates to a bottom foot structure and a washing machine.
Background
The household washing machine has a dehydration stage when a washing program runs, the working principle of the dehydration stage is that a motor and a transmission mechanism are utilized to drive an inner dehydration barrel to rotate at a high speed, the purpose of dehydration is realized through centrifugal force, but during the dehydration program, the load is unbalanced, and the load imbalance easily causes the problem of large vibration;
the control rod device is installed on the existing household washing machine, when dewatering, once the dewatering barrel is unbalanced in load, the box body and the control rod device of the washing machine can be collided, so that a control switch can be triggered to stop the machine and increase rinsing for one time, however, the machine can be stopped without collision after the box body and the control rod are collided in few situations, and worse situations such as displacement and the like can also occur when the dewatering rotating speed is continuously increased, so that users complain about and complain about.
Disclosure of Invention
The invention aims to solve the technical problem that the washing machine in the prior art is not balanced in displacement caused by dehydration, and provides a bottom foot structure and the washing machine.
In order to solve the technical problems, the invention adopts the technical scheme that:
the invention provides a footing structure which comprises a footing, wherein a displacement sensing device for detecting the displacement change of the footing is arranged on the footing.
Further, the displacement sensing means includes a photoelectric sensing means or a ball type displacement sensing means.
Furthermore, a first groove with a downward opening is formed in the bottom of the bottom foot, the photoelectric sensing device is arranged in the first groove and slides in the first groove along the axial direction of the bottom foot, and part of the photoelectric sensing device is exposed out of the first groove; alternatively, the first and second electrodes may be,
the rolling ball type displacement sensing device is rotatably arranged in the first groove, and the lowest end of the rolling ball type displacement sensing device is flush with the lowest end of the bottom foot.
Furthermore, the photoelectric sensing device comprises a light emitting piece, a light receiving piece, a light reflecting piece and a first elastic piece, wherein the light reflecting piece is provided with a light reflecting surface;
the light emitting piece and the light receiving piece are arranged at the bottom of the first groove, the first elastic piece extends along the axial direction of the bottom foot, one end of the first elastic piece is arranged at the bottom of the first groove, the other end of the first elastic piece is arranged on the light reflecting piece, the light reflecting piece slides in the first groove, part of the light reflecting piece is exposed out of the first groove, and a light reflecting surface on the light reflecting piece faces towards the bottom of the first groove.
Furthermore, the rolling ball type displacement sensing device comprises a rolling ball, two rolling shafts, a pinch roller and two rolling shaft encoders;
two rolling axles set up perpendicularly, and rotationally locate on the cell wall of first recess, the spin is placed between two rolling axles, and its one side is equipped with the pinch roller, and on the cell wall of first recess was rotationally located to the pinch roller, all had one end and the tangent contact of spin on every rolling axle and the theory of compressing tightly, establish a rolling axle encoder on every rolling axle, the bottommost of spin flushes with the bottommost of footing bottom.
Further, the footing is also provided with a normally closed switch for detecting the change of the footing displacement, the normally closed switch and the photoelectric sensing device or the rolling ball type displacement sensing device are arranged independently, or the normally closed switch and the photoelectric sensing device or the rolling ball type displacement sensing device are integrated into a whole.
Furthermore, a second groove with a downward opening is further formed in the bottom of the bottom foot, the second groove is independent of the first groove, the normally-closed switch is arranged in the second groove and slides in the second groove along the axial direction of the bottom foot, and part of the normally-closed switch is exposed out of the second groove and flush with part of the photoelectric sensing device exposed out of the first groove.
Furthermore, the top of the normally closed switch is arranged at the bottom of the first groove, and the bottom of the normally closed switch is provided with a photoelectric sensing device or a rolling ball type displacement sensing device.
Further, the normally closed switch comprises a second elastic element, a button, a moving contact arranged on the button and a static contact arranged at the bottom of the first groove;
the second elastic element extends along the axial direction of the bottom foot, one end of the second elastic element is connected with the fixed contact, the other end of the second elastic element is abutted against the moving contact, and the fixed contact is elastically and electrically connected with the moving contact;
the bottom of the button is provided with a light emitting piece and a light receiving piece; alternatively, the ball may be rotatably mounted to the bottom of the button.
The invention also provides a washing machine, and the bottom of the washing machine is provided with the bottom foot structure provided by the technical scheme.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. The bottom foot structure provided by the invention comprises the bottom foot, wherein the bottom foot is provided with the displacement sensing device for detecting the displacement change of the bottom foot, and the displacement change of the bottom foot is sensed by the displacement sensing device, so that the unbalanced displacement caused by vibration during the dehydration of the washing machine is accurately controlled, and the safety and the reliability of the operation of the washing machine are improved.
2. According to the footing structure provided by the invention, the photoelectric sensing device and the normally closed switch are arranged on the footing, and the normally closed switch can assist the photoelectric sensing device in detecting displacement change, so that the accuracy of displacement change detection is improved.
3. According to the footing structure provided by the invention, the rolling ball type displacement sensing device and the normally closed switch are arranged on the footing, and the normally closed switch can assist the photoelectric sensing device in detecting displacement changes, so that the accuracy of displacement change detection is improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural diagram of a footing structure provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a footing structure provided in accordance with an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an optoelectronic sensing device provided in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a footing structure provided in accordance with another embodiment of the present invention;
FIG. 5 is a bottom view of a structural schematic of a foot structure provided by another embodiment of the present invention;
fig. 6 is a structural schematic diagram of a footing structure provided by another embodiment of the invention.
In the figure: 1-footing; 11-a first groove; 2-a photoelectric sensing device; 21-an upper shell; 22-a lower housing; 23-a light emitting member; 24-a light receiving element; 25-a light reflector; 251-a light reflecting surface; 26-a first elastic member; 261-a first spring; 3-a normally closed switch; 4-a ball type displacement sensing device; 41-rolling ball; 42-roll axis; 43-rolling axis encoder; and 44-a pinch roller.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1, the present invention provides a footing structure, which includes a footing 1, and a photoelectric sensing device 2 for detecting a change in a displacement of the footing is disposed on the footing.
In the embodiment of the invention, the foot 1 is arranged at the bottom of the washing machine and is inserted into the washing machine from the bottom of the washing machine, so that the foot 1 is fixed on the washing machine, the foot 1 supports the washing machine to leave the ground, and the foot 1 bears the gravity of the washing machine; the whole dehydration process of the washing machine is divided into 3 stages, wherein one stage is a dehydration acceleration stage, the rotating speed of a motor of the washing machine is accelerated to a certain rotating speed from 0, the curve characteristic of the stage is high in amplitude and low in frequency, the amplitude of the curve can represent the vibration of a washing barrel, the danger of impacting a box body can be caused when the vibration is too large, and the dehydration is required to be stopped to rebalance the clothes in the barrel;
the washing machine is provided with a controller, the photoelectric sensing device 2 is connected with the controller, the photoelectric sensing device 2 senses the displacement change of the bottom foot caused by vibration, converts the displacement change into an electric signal and transmits the electric signal to the controller, the controller receives the electric signal transmitted by the photoelectric sensing device 2 to judge whether the displacement of the bottom foot 1 changes, if the displacement of the bottom foot 1 changes, the controller controls the washing machine to stop dewatering, the photoelectric sensing device 2 senses the displacement change of the bottom foot, the unbalanced displacement caused by vibration during dewatering of the washing machine is accurately controlled, and the safety and the reliability of the operation of the washing machine are improved;
wherein, the electrical signal may be voltage, current, frequency, PWM (pulse width), etc., the photo sensor device 2 further includes a lead (not shown) of the photo sensor device 2 connected to the controller, so as to facilitate the connection of the photo sensor device 2 to the controller; of course, the photoelectric sensing device can also be in wireless communication with the controller;
the footing includes footing seat and adjusts the foot, adjusts foot and footing seat spiro union, and photoelectric sensing device locates on the footing seat.
In the embodiment of the present invention, the bottom of the foot 1 is provided with a first groove 11 with a downward opening, the photoelectric sensing device 2 is disposed in the first groove 11 and slides in the first groove 11 along the axial direction of the foot, and a part of the photoelectric sensing device 2 is exposed out of the first groove 11.
In the embodiment of the present invention, the photoelectric sensing device 2 is disposed in the first groove 11, the opening of the first groove 11 is downward, the photoelectric sensing device 2 penetrates through the opening and is disposed in the first groove 11, and the first groove 11 has a guiding function on the photoelectric sensing device 2, so as to limit the photoelectric sensing device 2 in a certain space; the photoelectric sensing device 2 can slide in the first groove 11 to adapt to the displacement change of the foot; part of the photoelectric sensing device 2 is exposed out of the first groove 11, that is, the photoelectric sensing device 2 protrudes downwards relative to the foot, so as to contact with the ground; specifically, the first groove 11 is disposed on the base.
As shown in fig. 3, in the embodiment of the present invention, the photoelectric sensing device 2 includes a light emitting element 23, a light receiving element 24, a light reflecting element 25 and a first elastic element 26, wherein the light reflecting element 25 is provided with a light reflecting surface 251, the light emitting element 25 is provided with a light emitting end, and the light receiving element 24 is provided with a light receiving end;
the light emitting element 23 and the light receiving element 24 are disposed at the bottom of the first groove 11, the first elastic element 26 extends along the axial direction of the foot, one end of the first elastic element is disposed at the bottom of the first groove, the other end of the first elastic element is disposed on the light reflecting element 25, the light reflecting element 25 slides in the first groove 11, a part of the light reflecting element 25 is exposed out of the groove, the light reflecting surface 251 on the light reflecting element 25 faces the bottom of the first groove 11, and the light emitting end and the light receiving end face the opening of the first groove 11.
In the embodiment of the present invention, when the foot 1 is installed in the washing machine, part of the light reflecting member 25 is in contact with the ground, and extends into the first groove 11, the first elastic element 26 generates elastic compression deformation, when the displacement of the foot is changed due to vibration, the first elastic member 26 is elongated, the distance between the light reflecting surface 251 and the light emitting and receiving members 23 and 24 is changed, the light reflecting surface 251 reflects the light emitted from the light emitting member 23 back to the light receiving member 24, that is, the light signal reflected to the light receiving element 24 by the light reflecting surface 251 is changed, the light receiving element receives the changed light signal, and converts the optical signal into an electrical signal to be transmitted to the controller, the controller receives the changed electrical signal transmitted by the optical receiver 24, the electrical signal corresponds to the distance between the light reflecting surface 251 and the light emitting and receiving elements 23, 24, so that the electrical signal can accurately reflect the change of the displacement of the foot;
the photoelectric sensing device 2 further comprises an upper shell 21 and a lower shell 22, wherein the upper shell 21 is arranged at the bottom of the first groove, the bottom end of the upper shell 21 is open, the top end of the lower shell 22 is open, the upper shell 21 is covered on the lower shell 22, the upper shell 21 and the lower shell 22 are connected through a spring, so that the upper shell 21 and the lower shell 22 can move up and down relatively, namely, the upper shell 21 can move up and down relatively to the lower shell 22, the lower shell 22 can move up and down relatively to the upper shell 21, the lower shell 22 can slide in the first groove, the lower shell 22 is connected with the groove wall of the first groove in a sliding manner, part of the lower shell 22 is exposed out of the first groove, and the light emitting component 23, the light receiving element 24 is arranged on the top wall of the upper shell 21, the light emitting element 23 is arranged on the bottom wall of the lower shell 22, one end of the first elastic element 26 is arranged on the top wall of the upper shell 21, and the other end is arranged on the bottom wall of the lower shell 22;
the first elastic element 26 is a first spring 261, the first spring 261 is a linear spring with an elastic coefficient, the upper shell 21 and the lower shell 22 can also be connected through other elastic elements, the elastic elements can also be connected with the upper shell 21 and the lower shell 22 through other modes, the shapes of the upper shell 21 and the lower shell 22 and the matching relation between the upper shell 21 and the lower shell 22 are not limited to the above, as long as the upper shell 21 and the lower shell 22 can move relatively;
the light receiving part 24 is in wireless connection with a controller on the washing machine, the washing machine is further provided with a wireless receiving module, the light receiving part 24 is connected with a wireless transmitting module, the controller is connected with the wireless receiving module, the wireless transmitting module is connected with the wireless receiving module to achieve wireless connection of the light receiving part and the controller, specifically, the wireless transmitting module and the light receiving part 24 are independently arranged, the wireless transmitting module is arranged on the upper shell 21, or the wireless transmitting module and the light receiving part are integrated together.
Further, the light emitting element 23 and the light receiving element 24 may be provided on the bottom wall of the lower case 22, and the light emitting element 23 may be provided on the top wall of the upper case 21.
As shown in fig. 3, in the embodiment of the present invention, one end of the first elastic element 26 is disposed on the bottom of the first groove, the other end is disposed on the light reflection surface 251 of the light reflection element 25, the light emission element 23 and the light reception element 24 are disposed adjacent to each other on the bottom of the first groove, and the light reflection surface 251 of the light reflection element 25 is opposite to the light emission element 23 and the light reception element 24.
In the embodiment of the present invention, the other end of the first elastic member 26 is disposed on the light reflecting surface 251 of the light reflecting member 25, so that the track of the light reflected by the light reflecting surface 251 can be matched with the extending direction of the first elastic member 26, thereby increasing the accuracy of the photoelectric sensing device 2 in detecting the change of the displacement of the foot; the light reflection surface 251 is opposite to the light emitting element 23 and the light receiving element 24, so that the track of light rays can be matched with the extending direction of the first elastic element 26, and the accuracy of the photoelectric sensing device 2 for detecting the displacement change of the feet is also improved;
the light emitting element 23 and the light receiving element 24 are disposed adjacent to each other, i.e., spaced apart from each other, on the bottom of the first groove, so that the light receiving element 24 can smoothly receive the light signal reflected by the light reflecting surface 251.
In the embodiment of the invention, the foot is also provided with a normally closed switch 3 for detecting the displacement change of the foot, and the normally closed switch 3 and the photoelectric sensing device 2 are arranged independently.
In the embodiment of the invention, the foot is also provided with the normally closed switch 3, the normally closed switch 3 is used for detecting the displacement change of the foot, the detection of the displacement change of the foot by the photoelectric sensing device 2 can be assisted, the detection accuracy is improved, and the normally closed switch can deal with the condition of poor induction or damage of the photoelectric sensing device.
In the embodiment of the present invention, the normally closed switch 3 may also be disposed in the first groove and slide in the first groove along the axial direction of the foot, and a portion of the normally closed switch 3 is exposed outside the first groove and flush with a portion of the photoelectric sensing device 2 exposed outside the first groove.
In the embodiment of the invention, the first groove has a guiding function on the normally closed switch 3, so that the normally closed switch 3 is limited in a certain space; the normally closed switch 3 can slide in the first groove to adapt to the displacement change of the foot; part of the normally closed switch 3 is exposed out of the first groove, namely the normally closed switch 3 protrudes downwards relative to the bottom foot, so as to be in contact with the ground; the downward protruding degree of the normally closed switch 3 relative to the bottom foot is the same as the downward protruding degree of the photoelectric sensing device 2, so that the stability of the bottom foot is ensured.
In the embodiment of the invention, the bottom of the foot is further provided with a second groove with a downward opening, the second groove is independent from the first groove, the normally-closed switch 3 is arranged in the second groove and slides in the second groove along the axial direction of the foot, and part of the normally-closed switch 3 is exposed out of the second groove and is flush with the part of the photoelectric sensing device 2 exposed out of the first groove.
In the embodiment of the invention, the normally closed switch 3 is arranged in the second groove, the opening of the second groove faces downwards, the normally closed switch 3 penetrates through the opening and is arranged in the second groove, and the second groove has a guiding effect on the normally closed switch 3 to limit the normally closed switch 3 in a certain space; the normally closed switch 3 can slide in the second groove to adapt to the displacement change of the foot; part of the normally closed switch 3 is exposed out of the second groove, namely the normally closed switch 3 protrudes downwards relative to the foot, so as to contact with the ground.
In the embodiment of the invention, the bottom of the bottom foot is provided with a first groove and a plurality of second grooves, the first groove is positioned in the center of the bottom foot, and the plurality of second grooves are distributed in a circle along the circumferential direction of the first groove.
In the embodiment of the invention, the bottom of the footing 1 is provided with the first groove and the second grooves, namely the bottom of the footing is provided with the photoelectric sensing device 2 and the normally closed switches 3, and on the basis of ensuring that the photoelectric sensing device 2 can sense the displacement change of the center of the bottom of the footing, the normally closed switches 3 can sense the displacement change of other parts of the bottom of the footing, so that the sensing range is enlarged.
As shown in fig. 2, in the embodiment of the present invention, a normally closed switch 3 for detecting the displacement change of the foot 1 is further disposed on the foot 1, and the normally closed switch 3 and the photoelectric sensing device 2 are integrated into a whole;
specifically, the top of the normally closed switch 3 is provided with a groove bottom of the first groove 11, and the bottom of the normally closed switch 3 is provided with the photoelectric sensing device 2.
In the embodiment of the invention, the normally closed switch 3 and the photoelectric sensing device 2 are integrated into a whole, so that the occupied space on the footing 1 is reduced, and the photoelectric sensing device 2 and the normally closed switch 3 work simultaneously when vibration occurs, so that the sensitivity to displacement change can be improved.
In the embodiment of the invention, the normally closed switch comprises a second elastic element, a button, a moving contact arranged on the button and a static contact arranged at the bottom of the first groove or the second groove;
the second elastic element extends along the axial direction of the bottom foot, one end of the second elastic element is connected with the fixed contact, the other end of the second elastic element is abutted against the moving contact, and the fixed contact is elastically and electrically connected with the moving contact;
the button slides in the second groove, part of the button is exposed out of the second groove, and the part of the button exposed out of the second groove is flush with the part of the light reflecting piece exposed out of the first groove; or the bottom of the button is provided with a light emitting piece and a light receiving piece.
In the embodiment of the invention, when the normally closed switch 3 is arranged in the second groove, under the influence of the weight of the washing machine, the button and the light reflecting element are simultaneously pressed, the second elastic element is extruded by external force to be elastically deformed, the moving contact and the static contact which are abutted with the button are closed, the current is connected to form a loop, when the clothes impact the shell of the washing machine or cause violent movement due to larger vibration caused by uneven load turnover or winding and bias of the load in the barrel of the washing machine, the button part is instantly released, the button is released, the external force applied to the second elastic element is removed, the elastic force of the second elastic element is released, so that the loop between the moving contact and the static contact which are connected with the button is disconnected under the action of the elastic force of the button abutted with the second elastic element, the current is in an open circuit, the static contact transmits an open circuit signal to the controller of the washing machine, and the controller of the washing machine detects the open circuit signal, the controller controls the washing machine to stop dehydrating;
when the top of the normally closed switch 3 is arranged at the bottom of the first groove, and the bottom foot is displaced due to vibration, the first elastic piece 26 extends, and meanwhile, the second elastic piece extends.
The static contact is wirelessly connected with a controller of the washing machine, the static contact is connected with a wireless transmitting module, the washing machine is also provided with a wireless receiving module, the wireless receiving module is connected with the controller, and the wireless transmitting module is wirelessly connected with the wireless receiving module to realize the wireless connection of the static contact and the controller of the washing machine; the wireless transmitting module is independent from the static contact or integrated with the static contact.
The invention also provides a washing machine, which comprises a washing machine body and the footing structure provided by the technical scheme, wherein the footing structure comprises four footings arranged at four corners of the washing machine body, and the bottom of at least one footing is provided with the photoelectric sensing device 2 contacted with the ground.
In the embodiment of the invention, the washing machine body comprises a box body and a dewatering barrel, the dewatering barrel is rotatably arranged in the dewatering barrel, the bottom of the box body is provided with feet, the dewatering barrel is unbalanced in load and impacts the box body, the bottom of the feet vibrates, and therefore, the displacement changes, the photoelectric sensing device 2 is arranged on the feet, can sense the displacement change of the feet, and converts the sensed change into an electric signal to be transmitted to the controller to control the washing machine to stably run.
Example 2
Examples
As shown in fig. 4, the present invention provides a footing structure, which includes a footing 1, and a rolling ball type displacement sensing device 4 for detecting a change in the displacement of the footing 1 is disposed on the footing 1.
In the embodiment of the invention, the foot 1 is arranged at the bottom of the washing machine and is inserted into the washing machine from the bottom of the washing machine, so that the foot is fixed on the washing machine, the foot 1 supports the washing machine to be away from the ground, and the foot 1 bears the gravity of the washing machine; the whole dehydration process of the washing machine is divided into 3 stages, wherein one stage is a dehydration acceleration stage, the rotating speed of a motor of the washing machine is accelerated to a certain rotating speed from 0, the curve characteristic of the stage is high in amplitude and low in frequency, the amplitude of the curve can represent the vibration of a washing barrel, the danger of impacting a box body can be caused when the vibration is too large, and the dehydration is required to be stopped to rebalance the clothes in the barrel;
the washing machine is provided with a controller, the rolling ball type displacement sensing device 4 is connected with the controller, the rolling ball type displacement sensing device 4 senses displacement change of the bottom foot 1 caused by vibration, converts the displacement change into an electric signal and transmits the electric signal to the controller, the controller controls the washing machine to stop dewatering according to the electric signal, and the rolling ball type displacement sensing device 4 senses the displacement change of the bottom foot 1, so that unbalanced displacement caused by vibration during dewatering of the washing machine is accurately controlled, and the safety and the reliability of the operation of the washing machine are improved;
specifically, the electrical signal may be a voltage, a current, a frequency, a PWM (pulse width modulation), etc., and the rolling ball displacement sensing device 4 further includes a rolling ball displacement sensing device 4 wire (not shown) connected to the controller, so as to facilitate the connection of the rolling ball displacement sensing device 4 to the controller.
In the embodiment of the invention, the bottom of the foot is provided with a first groove 11 with a downward opening, the rolling ball type displacement sensing device 4 is arranged in the first groove 11, and the lowest end of the rolling ball type displacement sensing device is flush with the lowest end of the bottom of the foot.
In the embodiment of the invention, the rolling ball type displacement sensing device 4 is arranged in the first groove 11, the opening of the first groove 11 is downward, the rolling ball type displacement sensing device 4 is arranged in the first groove 11 through the opening, and the first groove 11 has a guiding function on the rolling ball type displacement sensing device 4, so that the rolling ball type displacement sensing device 4 is limited in a certain space; the rolling ball type displacement sensing device 4 can roll in the first groove 11 to adapt to the displacement change of the foot 1; the lowermost end of the ball displacement sensor means 4 is flush with the lowermost end of the bottom of the footing 1 so that its lowermost end has contact with the ground.
As shown in fig. 4 and 5, in the embodiment of the present invention, the rolling ball type displacement sensing device 4 includes a rolling ball 41, two rolling shafts 42, a pinch roller 44, and two rolling shaft encoders 43;
two rolling axles 42 set up perpendicularly, and rotationally locate on the cell wall of first recess 11, spin 41 places between two rolling axles 42, and its one side is equipped with pinch roller 44, and pinch roller 44 rotationally locates on the cell wall of first recess 11, all has one end and spin 41 tangent contact on every rolling axle 42 and the theory of compacting, establishes a rolling axle encoder 43 on every rolling axle 42, and the bottommost of spin 41 flushes with the bottommost of footing bottom.
In the embodiment of the invention, when the footing 1 is arranged on a washing machine, the bottommost end of the rolling ball 41 is contacted with the ground, when the footing 1 of the washing machine generates displacement due to vibration, the vibration of the washing machine enables the rolling ball 41 to roll on the ground, the rolling ball 41 rolls to drive the rolling shaft to rotate, and as the rolling shaft encoder 43 is arranged on the rolling shaft 42, the rolling shaft encoder 43 generates corresponding displacement change data, converts the corresponding change data into an electric signal and transmits the electric signal to the controller, and the controller controls the washing machine to stop dewatering according to the electric signal, so that the displacement change of the footing 1 can be accurately reflected;
the rolling shaft encoder 43 is in wireless connection with a controller of the washing machine, the rolling shaft encoder 43 is connected with a wireless transmitting module, the washing machine is provided with a wireless receiving module, the wireless receiving module is in wireless connection with the wireless transmitting module, and the wireless receiving module is connected with the controller of the washing machine, so that the use of wires is reduced, and the wires are prevented from being leaked due to the fact that the external environment is moist;
the wireless transmitting module is in wireless connection with the wireless receiving module in any one or combination of GPRS, Bluetooth or WiFi, and when the wireless transmitting module is in wireless connection with the wireless receiving module in Bluetooth, the wireless transmitting module is a Bluetooth transmitting module, and the wireless receiving module is a Bluetooth receiving module.
In the embodiment of the invention, the footing 1 is also provided with a normally closed switch 3 for detecting the change of the footing displacement, and the normally closed switch 3 and the rolling ball type displacement sensing device 4 are arranged independently.
In the embodiment of the invention, the foot 1 is also provided with the normally closed switch 3, the normally closed switch 3 is used for detecting the foot displacement change, the detection of the foot displacement change by the rolling ball type displacement sensing device 4 can be assisted, the detection accuracy is improved, and the normally closed switch 3 can deal with the condition that the rolling ball type displacement sensing device 4 is badly induced or the rolling ball type displacement sensing device 4 is damaged.
In the embodiment of the present invention, the normally closed switch 3 may also be disposed in the first groove 11, and slide in the first groove 11 along the axial direction of the foot, and a portion of the normally closed switch 3 is exposed out of the first groove 11.
In the embodiment of the invention, the first groove 11 has a guiding function on the normally closed switch 3, so that the normally closed switch 3 is limited in a certain space; the normally closed switch 3 can slide in the first groove 11 to adapt to the displacement change of the foot; part of the normally closed switch 3 is exposed out of the first groove 11, that is, the normally closed switch 3 protrudes downwards relative to the foot, so as to contact with the ground.
In the embodiment of the invention, the bottom of the foot is further provided with a second groove with a downward opening, the second groove is independent from the first groove 11, the normally closed switch 3 is arranged in the second groove and slides in the second groove along the axial direction of the foot, and part of the normally closed switch 3 is exposed out of the second groove.
In the embodiment of the invention, the normally closed switch 3 is arranged in the second groove, the opening of the second groove faces downwards, the normally closed switch 3 penetrates through the opening and is arranged in the second groove, and the second groove has a guiding effect on the normally closed switch 3 to limit the normally closed switch 3 in a certain space; the normally closed switch 3 can slide in the second groove to adapt to the displacement change of the foot; part of the normally closed switch 3 is exposed out of the second groove, namely the normally closed switch 3 protrudes downwards relative to the foot, so as to contact with the ground.
In the embodiment of the invention, the bottom of the foot is provided with a first groove 11 and a plurality of second grooves, the first groove 11 is positioned in the center of the bottom of the foot, and the plurality of second grooves are distributed in a circle along the circumference of the first groove 11.
In the embodiment of the invention, the bottom of the footing is provided with the first groove 11 and the second grooves, namely the bottom of the footing is provided with the rolling ball type displacement sensing device 4 and the normally closed switches 3, and on the basis of ensuring that the rolling ball type displacement sensing device 4 can sense the displacement change of the center of the bottom of the footing, the normally closed switches 3 can sense the displacement change of other parts of the bottom of the footing, so that the sensing range is enlarged.
In the embodiment of the invention, as shown in fig. 6, a normally closed switch 3 for detecting the change of the displacement of the foot is further arranged on the foot, and the normally closed switch 3 and the rolling ball type displacement sensing device 4 are integrated into a whole.
In the embodiment of the invention, the normally closed switch 3 and the rolling ball type displacement sensing device 4 are integrated into a whole, so that the space occupation on the footing is reduced, and the rolling ball type displacement sensing device 4 and the normally closed switch 3 work simultaneously when vibration occurs, so that the sensitivity to displacement change can be improved;
specifically, the top of the normally closed switch 3 is arranged at the bottom of the first groove 11, and the bottom of the normally closed switch 3 is provided with the rolling ball type displacement sensing device 4.
In the embodiment of the present invention, the normally closed switch 3 includes an elastic member, a button, a moving contact disposed on the button, and a static contact disposed at the bottom of the first groove 11 or the second groove;
the elastic element extends along the axial direction of the bottom foot, one end of the elastic element is connected with the fixed contact, the other end of the elastic element is abutted against the moving contact, and the fixed contact is elastically and electrically connected with the moving contact;
the button slides in the second groove and is partially exposed out of the second groove; alternatively, the ball 41 may be rotatably mounted to the bottom of the button.
In the embodiment of the invention, when the normally closed switch 3 is arranged in the second groove, under the influence of the weight of the washing machine, the button is pressed, and the rolling ball 41 rolls, the elastic element is extruded by external force to elastically deform, the moving contact and the static contact which are abutted with the button are closed, the current is switched on to form a loop, when the laundry is severely vibrated to hit the outer case of the washing machine or severely moved due to the uneven inversion of the load or the winding offset of the load in the tub of the washing machine, the button part is released instantly, the button is released, the external force applied to the elastic piece is removed, the elastic force of the elastic piece is released, so that the button which is abutted against the elastic element is under the action of elastic force, a loop between a moving contact and a static contact which are connected with the button is disconnected, the current is open, the static contact transmits an open-circuit signal to a controller of the washing machine, and the controller controls the washing machine to stop dewatering when detecting the open-circuit signal;
when the top of the normally closed switch 3 is arranged at the bottom of the first groove 11, and the bottom foot generates displacement change due to vibration, the rolling ball 41 rolls and the elastic force of the elastic element is released; the rolling ball 41 is rotatably arranged at the bottom of the button, and comprises the rolling ball 41 which is abutted against the bottom of the button, or the rolling ball 41 is rotatably connected with the bottom of the button;
the static contact is wirelessly connected with a controller of the washing machine, the static contact is connected with a wireless transmitting module, the washing machine is also provided with a wireless receiving module, the wireless receiving module is connected with the controller, and the wireless transmitting module is wirelessly connected with the wireless receiving module to realize the wireless connection of the static contact and the controller of the washing machine; the wireless transmitting module is independent from the static contact or integrated with the static contact, so that the use of the wire is reduced, and the wire is prevented from being leaked due to the fact that the external environment is wet;
the wireless transmitting module is in wireless connection with the wireless receiving module in any one or combination of GPRS, Bluetooth or WiFi, and when the wireless transmitting module is in wireless connection with the wireless receiving module in Bluetooth, the wireless transmitting module is a Bluetooth transmitting module, and the wireless receiving module is a Bluetooth receiving module.
The invention also provides a washing machine, which comprises a washing machine body and the footing structure provided by the technical scheme, wherein the footing structure 1 comprises four footings arranged at four corners of the washing machine body, and the bottom of at least one footing is provided with a rolling ball type displacement sensing device contacted with the ground.
In the embodiment of the invention, the washing machine body comprises a box body and a dewatering barrel, the dewatering barrel is rotatably arranged in the dewatering barrel, feet are arranged at the bottom of the box body, the dewatering barrel is unbalanced in load and impacts the box body, the bottom of the feet generate vibration, so that displacement is changed, the rolling ball type displacement sensing device is arranged on the feet, can sense the displacement change of the feet, and converts the sensed change into an electric signal to be transmitted to a controller to control the washing machine to stably run.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A footing structure comprises a footing and is characterized in that a displacement sensing device for detecting the displacement change of the footing is arranged on the footing.
2. A foot construction according to claim 1, characterised in that the displacement sensing means comprises opto-electronic sensing means or ball-type displacement sensing means.
3. A foot structure as claimed in claim 2, wherein the bottom of the foot is provided with a first groove with a downward opening, the photoelectric sensing device is arranged in the first groove and slides in the first groove along the axial direction of the foot, and part of the photoelectric sensing device is exposed out of the first groove; alternatively, the first and second electrodes may be,
the rolling ball type displacement sensing device is rotatably arranged in the first groove, and the lowest end of the rolling ball type displacement sensing device is flush with the lowest end of the bottom foot.
4. A foot structure according to claim 3, characterized in that the photoelectric sensing means comprises a light emitting element, a light receiving element, a light reflecting element and a first resilient element, the light reflecting element being provided with a light reflecting surface;
the light emitting piece and the light receiving piece are arranged at the bottom of the first groove, the first elastic piece extends along the axial direction of the bottom foot, one end of the first elastic piece is arranged at the bottom of the first groove, the other end of the first elastic piece is arranged on the light reflecting piece, the light reflecting piece slides in the first groove, part of the light reflecting piece is exposed out of the first groove, and a light reflecting surface on the light reflecting piece faces towards the bottom of the first groove.
5. A footing structure according to claim 3, wherein the rolling ball type displacement sensing means comprises a rolling ball, two rolling shafts, a pinch roller, and two rolling shaft encoders;
two rolling axles set up perpendicularly, and rotationally locate on the cell wall of first recess, the spin is placed between two rolling axles, and its one side is equipped with the pinch roller, and on the cell wall of first recess was rotationally located to the pinch roller, all had one end and the tangent contact of spin on every rolling axle and the theory of compressing tightly, establish a rolling axle encoder on every rolling axle, the bottommost of spin flushes with the bottommost of footing bottom.
6. A footing structure according to any one of claims 2-5, characterized in that the footing is further provided with a normally closed switch for detecting a change in footing displacement, the normally closed switch being provided independently of the photoelectric sensing device or the rolling ball type displacement sensing device, or the normally closed switch being provided integrally with the photoelectric sensing device or the rolling ball type displacement sensing device.
7. A foot structure as claimed in claim 6, wherein the bottom of the foot is further provided with a second groove with a downward opening, the second groove is independent from the first groove, the normally-closed switch is disposed in the second groove and slides in the second groove along the axial direction of the foot, and a part of the normally-closed switch is exposed out of the second groove and flush with a part of the photoelectric sensing device exposed out of the first groove.
8. A footing structure according to claim 6, wherein the top of the normally closed switch is disposed at the bottom of the first recess, and the bottom of the normally closed switch is provided with a photoelectric sensing device or a rolling ball type displacement sensing device.
9. A foot structure according to claim 8, wherein the normally closed switch comprises a second elastic member, a button, a movable contact arranged on the button, and a fixed contact arranged at the bottom of the first groove;
the second elastic element extends along the axial direction of the bottom foot, one end of the second elastic element is connected with the fixed contact, the other end of the second elastic element is abutted against the moving contact, and the fixed contact is elastically and electrically connected with the moving contact;
the bottom of the button is provided with a light emitting piece and a light receiving piece; alternatively, the ball may be rotatably mounted to the bottom of the button.
10. A washing machine, characterized in that the bottom of the washing machine is provided with a foot construction according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010411343.2A CN113668196A (en) | 2020-05-15 | 2020-05-15 | Footing structure and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010411343.2A CN113668196A (en) | 2020-05-15 | 2020-05-15 | Footing structure and washing machine |
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| CN113668196A true CN113668196A (en) | 2021-11-19 |
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| CN202010411343.2A Pending CN113668196A (en) | 2020-05-15 | 2020-05-15 | Footing structure and washing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114277553A (en) * | 2021-12-20 | 2022-04-05 | 长虹美菱股份有限公司 | Washing machine bottom foot |
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