WO2020248960A1 - 一种洗衣机及其控制方法 - Google Patents

一种洗衣机及其控制方法 Download PDF

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Publication number
WO2020248960A1
WO2020248960A1 PCT/CN2020/095034 CN2020095034W WO2020248960A1 WO 2020248960 A1 WO2020248960 A1 WO 2020248960A1 CN 2020095034 W CN2020095034 W CN 2020095034W WO 2020248960 A1 WO2020248960 A1 WO 2020248960A1
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WIPO (PCT)
Prior art keywords
water
washing machine
temperature
inner cylinder
heating
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PCT/CN2020/095034
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English (en)
French (fr)
Inventor
许升
吕佩师
赵志强
Original Assignee
青岛海尔滚筒洗衣机有限公司
海尔智家股份有限公司
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Application filed by 青岛海尔滚筒洗衣机有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Publication of WO2020248960A1 publication Critical patent/WO2020248960A1/zh

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • D06F23/025Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis with a rotatable imperforate tub
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • D06F33/30Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • D06F33/30Control of washing machines characterised by the purpose or target of the control 
    • D06F33/44Control of the operating time, e.g. reduction of overall operating time
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04Heating arrangements

Definitions

  • the invention belongs to the technical field of washing machines, and specifically relates to a washing machine and a control method thereof.
  • Washing machine is one of the more commonly used household appliances in people's daily life. The use of washing machines brings convenience to people's lives.
  • the outer tub contains water, and the inner tub rotates for washing.
  • the inner tub wall is provided with holes for injecting washing water into the inner tub or for dehydrating the clothes in the inner tub.
  • the flow between the inner and outer cylinders causes dirt and scale to accumulate between the interlayers of the inner and outer cylinders, causing a large number of bacteria to multiply, causing secondary pollution to clothing, and seriously threatening the health of consumers.
  • the filling of the water in the room causes useless water waste, therefore, people have designed a non-porous inner tub washing machine.
  • the user generally heats the washing water during the washing process, which can not only improve the decontamination ability of the detergent, but also the heated washing water can sterilize and disinfect clothes.
  • the conventional heating device is set on the outer tub of the washing machine to heat the water between the inner tub and the outer tub of the washing machine.
  • the non-porous inner tub washing machine has no water between the inner tub and the outer tub, the inner tub cannot be heated.
  • the washing water in the inner tube is heated. Therefore, how to heat the washing water in the inner tube of a washing machine with a non-porous inner tube is an urgent problem to be solved by those skilled in the art.
  • the heating time is too short and the water temperature is too low, resulting in poor washing effect, or the heating time is too long and the water temperature is too high, resulting in clothing deformation, fading, and irreversible damage to some clothing
  • the heating time is too long to consume a large amount of electric energy, resulting in a waste of excessive electricity. Therefore, how to control the heating time of the washing water in the non-porous inner tub washing machine is also an urgent problem for those skilled in the art to solve.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art.
  • the present invention provides a washing machine and a control method thereof, which realizes the control of the heating time of the water in the non-porous inner tub, and effectively avoids the problems caused by the heating device. If the heating time is too short or too long, the water temperature in the inner tub is too low or too high, which affects the washing effect or damages the laundry and the washing machine.
  • a washing machine including:
  • Inner tube independently holding washing water when washing clothes
  • a water inlet system the water inlet system is in communication with the inner cylinder;
  • a heating device to heat the water in the inner cylinder
  • the temperature detection device is set in the water inlet system to detect the inlet water temperature.
  • it also includes a flow detection device arranged in the water inlet system to detect the amount of water inflow;
  • the flow detection device is a flow sensor
  • the temperature detection device is a temperature sensor
  • the water inlet system includes a water inlet pipe connected to the inside of the inner cylinder, and the temperature detecting device and the flow detecting device are respectively arranged in the water inlet pipe;
  • the water inlet system further includes a water inlet valve arranged on the water inlet pipeline, and the temperature detection device and the flow detection device are assembled and integrated with the water inlet valve.
  • it also includes an outer cylinder sleeved on the outside of the inner cylinder and coaxially arranged with the inner cylinder, and a shell arranged outside the outer cylinder, and the heating device is arranged on the outer cylinder or the shell;
  • the heating device is arranged on the inner wall of the outer cylinder, and the heating device is an electromagnetic heating device.
  • the present invention also provides a method for controlling a washing machine.
  • the control unit of the washing machine controls the operation of the heating device according to the result detected by the temperature detection device.
  • control unit of the washing machine calculates the heating time T of the inner tub that the heating device needs to heat the inner tub from the initial water temperature heating to the set water temperature according to the initial water temperature value fed back by the temperature detection device, and controls the heating The device stops working after heating time T;
  • the heating time T of the heating device is:
  • T is the heating time
  • 4.2 is a constant
  • t is the set water temperature
  • t0 is the initial water temperature
  • L is the set water intake.
  • the initial water temperature t0 (t1+t2+t3+t4+,,,tn)/n, where n ⁇ 3; t1 ⁇ tn are the values detected by the temperature detection device at different times during the water intake process of the washing machine Different water temperature values;
  • the temperature detection device detects the water temperature value once every certain time interval.
  • the control unit of the washing machine determines whether the set water intake is reached according to the current water intake feedback from the flow detection device, and if so, stops the water intake and determines whether to start the heating device ; If not, continue to enter the water.
  • control unit of the washing machine determines whether to start the heating device according to the user's selection of whether to start the heating program.
  • control unit of the washing machine needs to further determine whether the initial water temperature detected by the current temperature detection device reaches the set water temperature, if yes, execute the washing program; if not, start the heating device.
  • the present invention has the following beneficial effects compared with the prior art.
  • the washing machine provided by the present invention realizes the control of the heating time of the water in the non-porous inner cylinder by combining the temperature detection device with the heating device, effectively avoiding the heating time of the heating device being too short or too long. As a result, the water temperature in the inner tub is too low or too high, which affects the washing effect or damages the laundry and the washing machine.
  • the washing machine provided by the present invention not only improves the intelligence level of the washing machine by automatically controlling the heating time of the heating device, but also effectively avoids excessive heating time and unnecessary waste of electric energy.
  • the washing machine provided by the present invention adopts an electromagnetic heating device to heat the inner tub, thereby heating the clothes in the inner tub and the water in the inner tub, and has a simple structure and high assembly efficiency, which improves the practical promotion of the product.
  • Figure 1 is a schematic diagram of the principle of the drum washing machine in the first embodiment and the second embodiment of the present invention
  • FIG. 2 is a schematic diagram of another principle of the drum washing machine in the first embodiment ⁇ the second embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the principle of a drum washing machine in the second embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the principle of the drum washing machine in the third embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for controlling a drum washing machine in the third embodiment of the present invention.
  • Fig. 6 is a schematic structural diagram of an electromagnetic heating device according to a fourth embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the principle of a drum washing machine in Embodiment 5 of the present invention.
  • FIG. 8 is a schematic diagram of the principle of the drum washing machine in the sixth embodiment of the present invention.
  • Fig. 9 is a schematic diagram 1 of a three-dimensional structure of a clothes lifting device for a washing machine in a sixth embodiment of the present invention.
  • Fig. 10 is a schematic diagram 2 of a three-dimensional structure of a clothes lifting device for a washing machine in a sixth embodiment of the present invention.
  • Figure 11 is a front view of a laundry lifting device for a washing machine according to a sixth embodiment of the present invention.
  • Figure 12 is a cross-sectional view of the laundry lifting device for washing machine according to the sixth embodiment of the present invention, taken along the plane A-A in Figure 11;
  • Fig. 13 is a cross-sectional view of the laundry lifting device for a washing machine according to the sixth embodiment of the present invention along the B-B plane in Fig. 11 (Embodiment 1);
  • Fig. 14 is a cross-sectional view of the laundry lifting device for washing machine according to the sixth embodiment of the present invention, taken along plane B-B in Fig. 11 (Embodiment 2);
  • Fig. 15 is a schematic diagram of the principle of a drum washing machine in the seventh embodiment of the present invention.
  • Figure 16 is a partial enlarged view of Figure 15 (pressure relief state) of the drum washing machine of the seventh embodiment of the present invention.
  • Figure 17 is a partial enlarged view of Figure 15 of the drum washing machine of the seventh embodiment of the present invention (pressurized state);
  • Figure 18 is a schematic diagram of the principle of the drum washing machine in the eighth embodiment of the present invention.
  • Fig. 19 is a partial enlarged view in Fig. 18 of the drum washing machine of the eighth embodiment of the present invention (pressure relief state of the first embodiment);
  • Fig. 20 is a partial enlarged view in Fig. 18 of the drum washing machine of the eighth embodiment of the present invention (pressurization state in the first embodiment);
  • Figure 21 is a partial enlarged view in Figure 18 of the drum washing machine of the eighth embodiment of the present invention (pressure relief state of the second embodiment);
  • Fig. 22 is a partial enlarged view of Fig. 18 of the drum washing machine according to the eighth embodiment of the present invention (pressurization state in the second embodiment).
  • this embodiment provides a front-opening drum washing machine with a non-porous inner tub.
  • the structure is simple and can greatly reduce the need for filling washing/rinsing water between the inner tub and the outer tub.
  • the washing water consumption of the washing machine The possibility of dirt adhesion between the inner cylinder and the outer cylinder is avoided.
  • the drum washing machine of this embodiment has a housing 19, which includes: an upper panel 2, a front panel, a back panel and a bottom plate. A foot 9 is fixed on the bottom plate to support the entire washing machine.
  • the housing 19 has an outer cylinder 18 inside, and an inner cylinder 17 is coaxially arranged in the outer cylinder 18.
  • the main purpose of the outer cylinder 18 is to collect the drainage from the inner cylinder 17 and the drainage from the high-speed centrifugal dehydration of the inner cylinder 17.
  • the inner cylinder 17 rotates, and preferably is provided with lifting ribs, which continuously lifts and falls and beats the clothes, so as to wash the clothes.
  • the inner cylinder 17 has a non-porous structure.
  • the outer cylinder 18 has a central mounting hole, and the bearing 12 is installed and fixed.
  • the inner cylinder shaft 13 tightly connected to the inner cylinder 17 passes through the bearing 12 shown and is connected to the drive motor 16.
  • An openable/closable inner cylinder door 6 is installed on the front mouth of the inner cylinder 17, thereby realizing the inner cylinder 17 as a sealed cabin structure.
  • a door 5 that can be opened/closed is installed on the housing 19.
  • This embodiment mainly solves the problem that when the non-porous inner tub washing machine performs the heating program, the temperature of the heating cannot be well controlled, resulting in low water temperature, which affects the washing effect; or, the high water temperature causes damage to the clothes.
  • this embodiment provides a washing machine including: an inner tub 17, which independently holds washing water when washing clothes, avoiding the accumulation of dirt and bacterial growth caused by the accumulation of the inner tub 17 and the overflow of washing water
  • the electromagnetic heating device 33 heats the inner tube 17, and then heats the washing water in the inner tube 17 to enhance the decontamination ability.
  • the heated washing water can also sterilize and disinfect clothes; the temperature detection device 34 directly detects the inner tube
  • the water temperature in the cylinder 17 is either the temperature of the inner cylinder 17 or the temperature at a certain distance outside the inner cylinder 17.
  • the temperature detection device 34 and the electromagnetic heating device 33 are respectively electrically connected to the main controller 4 of the washing machine, and the main controller 4 of the washing machine determines the water temperature in the inner tub 17 according to the temperature value detected by the temperature detection device 34 , And then control the operation of the electromagnetic heating device 33.
  • the washing machine provided in this embodiment further includes an outer tube 18 sheathed outside the inner tube 17 coaxially with the inner tube 17, and the temperature detection device 34 can be assembled and integrated with the electromagnetic heating device 33, which simplifies the installation steps; or , Directly fixedly mounted on the outer cylinder 18, preferably on the inner wall of the outer cylinder 18, indirectly determine the temperature of the water in the inner cylinder 17 by detecting the temperature of the outer cylinder 18; alternatively, it can also be fixedly installed on the inner cylinder through a fixed structure At any position between 17 and the outer cylinder 18, the temperature detection device 34 is closer to the inner cylinder 17, and the measured temperature value is closer to the water temperature in the inner cylinder 17, indirectly by detecting the temperature between the inner cylinder 17 and the outer cylinder 18. The temperature of the water in the inner cylinder 17 is determined.
  • the temperature detection device 34 is a temperature sensor.
  • the temperature sensor detects the water temperature in the inner cylinder 17 to provide the main controller 4 with the current temperature to ensure that the main controller 4 monitors the water temperature in the inner cylinder 17 Control to achieve better washing effect.
  • the temperature sensor is a resistance temperature detector; or, a semiconductor sensor; or, a thermocouple; or, an NTC temperature sensor. More preferably, it is an NTC temperature sensor, which is formed by connecting a thermistor with a negative temperature coefficient to a wire. Using the NTC thermistor under a certain measuring power, the resistance value decreases rapidly as the temperature rises. Using this feature, the NTC thermistor can determine the corresponding temperature by measuring its resistance value, and transmit it to the main controller 4 of the washing machine through the signal line 34, so as to achieve the purpose of detecting and controlling the water temperature in the inner tub 17.
  • the electromagnetic heating device 33 includes an electromagnetic heating coil 331 and a rectifier 332.
  • the heating program is started, and the current and voltage are converted into direct current through the rectifier (driver) 332, so that the direct current becomes a high-frequency alternating current exceeding audio frequency.
  • the alternating current is output to the electromagnetic heating coil 331, thereby generating a high-frequency alternating magnetic field.
  • the electromagnetic induction line acts on the outer cylinder 18 made of metal. In the inner metal cylinder 17, a strong eddy current is generated due to electromagnetic induction. When the internal resistance of the inner cylinder 17 body is overcome, the conversion of electric energy to thermal energy is completed, and the inner cylinder 17 generates heat, thereby achieving the purpose of heating the water enclosed in the inner cylinder 17.
  • the electromagnetic heating device 33 is arranged on the outer cylinder 18.
  • the electromagnetic heating device 33 may also be arranged on the casing 19 of the washing machine.
  • the electromagnetic heating device 33 is arranged on the inner wall of the outer cylinder 18. .
  • the electromagnetic heating device 33 is used to heat the inner cylinder 17, thereby heating the clothes in the inner cylinder 17 and the water in the inner cylinder 17.
  • the structure is simple, the assembly efficiency is high, and the practical promotion of the product is improved.
  • the heating area of the inner cylinder 17 corresponding to the electromagnetic heating device 33 is divided into a direct heating zone and an indirect heating zone.
  • the inner cylinder 17 is controlled to rotate while the electromagnetic heating device 33 is activated.
  • the inner cylinder 17 located in the heating range of the electromagnetic heating device 33 is divided into a direct heating zone, and the inner cylinder 17 heated by heat transfer is divided into an indirect heating zone.
  • the temperature detection device 34 is provided on the inner wall of the outer cylinder 18 corresponding to the direct heating zone or the indirect heating zone.
  • At least part of the structure of the inner cylinder 17 is made of metal material, and is subjected to the magnetic field generated by the electromagnetic heating device 33 to generate an eddy current effect to generate heat, and transfer the heating heat to the water in the inner cylinder 17 to improve The water temperature enhances the washing effect of the washing machine.
  • the temperature detection device 34 is provided on the inner wall of the outer cylinder 18 corresponding to the indirect heating zone. Since the temperature of the water in the inner cylinder 17 of the direct heating zone is much higher than the actual water temperature, the temperature detection device 34 It is more accurate to measure the water temperature in the inner cylinder 17 by setting it on the inner wall of the outer cylinder 18 corresponding to the indirect heating zone.
  • the temperature detection device 34 and the electromagnetic heating device 33 are both arranged on the circumference of the inner wall of the outer cylinder 18, and the temperature detection device 34 is arranged at the position farthest from the electromagnetic heating device 33 in the axial direction. , And the projections of the two on the cross section of the outer cylinder 18 fall on the two end points of the same diameter.
  • the temperature detection device 34 is arranged at the farthest distance from the electromagnetic heating device 34 to measure the water temperature in the inner cylinder 17 with less error and more accuracy.
  • a plurality of temperature sensors are arranged on the inner wall of the outer cylinder 18, and the water temperature in the inner cylinder 17 is measured at the same time.
  • the plurality of temperature sensors are respectively electrically connected to the main controller 4.
  • the temperature sensors are arranged on the inner wall of the outer cylinder 18 at a certain distance to obtain multiple temperature values at different positions of the inner cylinder 17, and then the average temperature is calculated to reduce measurement errors.
  • the temperature sensors are evenly distributed on the inner wall of the outer cylinder 18 corresponding to the direct heating zone, and the inner wall of the outer cylinder 18 corresponding to the indirect heating zone, avoiding only measuring the water temperature in the direct heating zone or the indirect heating zone , Resulting in a large deviation between the measurement result and the actual water temperature.
  • This embodiment also provides a method for controlling the washing machine.
  • the control unit of the washing machine determines the current water temperature in the inner tub according to the feedback result of the temperature detection device, and controls the on-off of the electromagnetic heating device. It avoids that the heating temperature is too high and the electromagnetic heating device cannot be cut off in time, causing certain safety hazards.
  • the temperature sensor transmits the detected temperature value t to the control unit of the washing machine, and the control unit calculates and analyzes the current water temperature t′ and determines whether it reaches the set temperature t0, and if so, controls the electromagnetic heating device Power off; if not, control the electromagnetic heating device to maintain power. It avoids the low water temperature that causes insufficient detergent dissolution, and the inability to dissolve dirty organic substances on the clothes, which results in the reduction of the cleaning effect of the washed clothes, or the high water temperature causes the clothes to deform, fade, damage or the temperature is too high. Cause some damage.
  • the multiple temperature sensors respectively transmit the detected temperature values t1, t2, t3,,, tn to the control unit of the washing machine, and the control unit calculates and analyzes the inner cylinder
  • the temperature t0 if yes, the electromagnetic heating device is controlled to be powered off; if not, the electromagnetic heating device is controlled to remain powered on.
  • This embodiment is an improvement made on the basis of the first embodiment.
  • a non-contact temperature detection device is used, and the temperature measurement result is more accurate.
  • this embodiment provides a washing machine, including: an inner tub 17, which independently holds washing water when washing clothes, avoiding the accumulation of the inner tub 17 and the dirt caused by overflowing washing water The problem of accumulation and bacterial growth; the electromagnetic heating device 33 heats the water in the inner tube 17 to enhance the decontamination ability, and the heated washing water can also sterilize and disinfect the clothes; the non-contact temperature detection device 37 detects the inner tube The temperature of the water in 17 or the temperature of the inner cylinder 17 is detected.
  • the non-contact temperature detection device adopted in this embodiment has high accuracy, high resolution, and fast response time. It does not directly contact the inner cylinder 17 or the water in the inner cylinder 17, The temperature of the water in the inner tub 17 or the inner tub 17 can be accurately measured.
  • the non-contact temperature detection device 37 and the electromagnetic heating device 33 are respectively electrically connected to the main controller 4 of the washing machine.
  • the main controller 4 of the washing machine determines the temperature of the water in the inner tub 17 based on the temperature value detected by the non-contact temperature detection device 37, and then controls the operation of the electromagnetic heating device 33.
  • the non-contact temperature detection device 37 does not require direct contact with the object to be detected, its setting position is more flexible, unrestricted, and easy to install.
  • the non-contact temperature detection device 37 can be combined with an electromagnetic heating device. 33
  • the assembly is integrated to simplify the installation steps; alternatively, it also includes an outer cylinder 18 that is sleeved outside the inner cylinder 17 and coaxially arranged with the inner cylinder 17, or directly fixedly installed on the outer cylinder 18, preferably, arranged on the outer cylinder On the inner wall of 18; or, it further includes a housing 19 arranged outside the outer cylinder 18, and the non-contact temperature detection device 37 is arranged on the housing 19.
  • the non-contact temperature detection device 37 is a non-contact temperature sensor.
  • the temperature sensor detects the water temperature in the inner cylinder 17 to provide the current temperature of the main controller 4 to ensure that the main controller 4 checks the inner cylinder.
  • the water temperature in 17 is controlled to achieve better washing effect.
  • the non-contact temperature sensor is an infrared temperature sensor; or, an ultrasonic temperature sensor; or, a microwave temperature measuring temperature sensor; or, a laser temperature sensor.
  • the non-contact temperature sensor is an infrared temperature sensor
  • the infrared temperature sensor is composed of an optical system, a photodetector, a signal amplifier, and signal processing.
  • the optical system condenses the infrared radiation energy of the target in its field of view, and the size of the field of view is determined by the optical parts and positions of the thermometer.
  • the infrared energy is focused on the photodetector and converted into corresponding electrical signals.
  • the signal passes through the amplifier and signal processing circuit, and is converted into the temperature value of the measured target after being corrected according to the algorithm and target emissivity inside the instrument. And it is transmitted to the main controller 4 of the washing machine through the signal line 35, so as to achieve the purpose of detecting and controlling the water temperature in the inner tub 17.
  • the infrared temperature sensor can measure the temperature of the surface of the inner cylinder 17, thereby indirectly obtaining the temperature of the water in the inner cylinder 17, or it can directly measure the temperature of the water in the inner cylinder 17. Specifically, it is provided on the cylinder body of the inner cylinder 17. An infrared window. The detector head of the infrared temperature sensor directly measures the temperature of the water in the inner cylinder 17 through the infrared window.
  • the infrared window is an optical window that can transmit ultraviolet, visible, and infrared rays. The window is installed on the cylinder body of the inner cylinder 17 to realize the infrared imaging temperature measurement of the inner cylinder 17 in a closed operation state, thereby realizing the purpose of directly measuring the water temperature in the inner cylinder 17.
  • the inner cylinder 17 includes an inner cylinder door 6, which can be opened/closed and installed on the mouth of the inner cylinder for putting clothes, etc., and the infrared temperature sensor is arranged on the outer cylinder.
  • the detection head faces the surface of the inner cylinder 17.
  • the infrared temperature sensor is arranged on the openable/closable door 5 installed on the housing 19, and the detection head of the infrared sensor detector directly faces the surface of the inner cylinder door 6, and further, The water temperature in the inner cylinder 17 is measured indirectly.
  • the inner cylinder 17 corresponds to the heating area of the electromagnetic heating device 33 and is divided into a direct heating zone and an indirect heating zone. In order to make heating more uniform, while the electromagnetic heating device 33 is activated, the inner cylinder 17 is controlled to rotate to increase the direct heating of the inner cylinder 17 At the same time, the heating is more uniform.
  • the inner cylinder 17 located in the heating range of the electromagnetic heating device 33 is divided into a direct heating zone, and the inner cylinder 17 heated by heat transfer is divided into an indirect heating zone.
  • the infrared temperature sensor detects The probe of the detector faces the surface of the inner tube 17 of the indirect heating zone.
  • the detector head of the infrared temperature sensor is directed toward the outer surface of the inner cylinder 17 in the indirect heating zone to measure the water temperature in the inner cylinder 17 , More accurate.
  • infrared temperature sensors which are respectively electrically connected to the main controller 4.
  • the multiple temperature sensors are arranged on the inner wall of the outer cylinder 17 at a certain distance or at a certain angle.
  • the probe head of the temperature sensor faces the cylinder surface of the inner cylinder 17 at different positions, and then multiple temperature values at different positions of the inner cylinder 17 are obtained, and then the average temperature is calculated to reduce measurement errors.
  • the probe heads of the detectors of a plurality of the temperature sensors respectively face the surface of the inner cylinder 17 in the direct heating zone and the surface of the inner cylinder 17 in the indirect heating zone. This avoids measuring only the inner cylinder 17 located in the direct heating zone or the indirect heating zone, resulting in a large deviation between the measurement result and the actual water temperature.
  • the electromagnetic heating device 33 includes an electromagnetic heating coil 331 and a rectifier 332.
  • the heating program is started, and the current and voltage are converted into direct current through the rectifier (driver) 332, so that the direct current becomes a high-frequency alternating current exceeding audio frequency.
  • the alternating current is output to the electromagnetic heating coil 331, thereby generating a high-frequency alternating magnetic field.
  • the electromagnetic induction line acts on the outer cylinder 18 made of metal. In the inner metal cylinder 17, a strong eddy current is generated due to electromagnetic induction. When the internal resistance of the inner cylinder 17 body is overcome, the conversion of electric energy to thermal energy is completed, and the inner cylinder 17 generates heat, thereby achieving the purpose of heating the water enclosed in the inner cylinder 17.
  • the electromagnetic heating device 33 is arranged on the outer tube 18, and the electromagnetic heating device 33 may also be arranged on the cabinet 19 of the washing machine. Preferably, the electromagnetic heating device 33 is arranged on the inner wall of the outer tube 18. The electromagnetic heating device 33 is used to heat the inner cylinder 17, thereby heating the clothes in the inner cylinder 17 and the water in the inner cylinder 17.
  • the structure is simple, the assembly efficiency is high, and the practical promotion of the product is improved.
  • This embodiment also provides a method for controlling a washing machine.
  • the control unit of the washing machine determines the current water temperature in the inner tub according to the feedback result of the non-contact temperature detection device, and controls the on-off of the electromagnetic heating device. It avoids that the heating temperature is too high and the electromagnetic heating device cannot be cut off in time, causing certain safety hazards.
  • the infrared temperature sensor transmits the detected temperature value t to the control unit of the washing machine, and the control unit calculates and analyzes the current water temperature t′ and determines whether it reaches the set temperature t0, and if so, controls the electromagnetic heating
  • the device is powered off; if not, the electromagnetic heating device is controlled to remain powered. It avoids the low water temperature that causes insufficient detergent dissolution, and the inability to dissolve dirty organic substances on the clothes, which results in the reduction of the cleaning effect of the washed clothes, or the high water temperature causes the clothes to deform, fade, damage or the temperature is too high. Cause some damage.
  • the multiple infrared temperature sensors respectively transmit the detected temperature values t1, t2, t3, tn to the control unit of the washing machine, and the control unit calculates and analyzes
  • the method of averaging the current water temperature in the inner cylinder is obtained, and the accuracy is higher.
  • the difference between this embodiment and the first and second embodiments is that the temperature detection device used measures the initial water inlet temperature, and the control unit of the washing machine controls the operation of the heating device according to the current water inlet temperature and the amount of water.
  • this embodiment provides a washing machine, including: an inner tub 17, which independently holds washing water when washing clothes; a water inlet system, which communicates with the inner tub 17; a heating device 33, which heats The water in the inner cylinder 17; a temperature detection device (not shown in the figure) is set in the water inlet system to detect the inlet water temperature.
  • the temperature detection device provided in the water inlet system can detect the temperature of the inlet water in real time, ensuring that the control system of the washing machine controls the water temperature in the inner tub 17 to achieve a better washing effect.
  • the washing machine further includes a flow detection device (not shown in the figure) arranged in the water inlet system to detect the amount of water; preferably, the temperature detection device is a temperature sensor, and the flow detection device is a flow rate sensor.
  • the flow sensor measures the amount of water entering the inner tub 17 to ensure that the control system of the washing machine controls the amount of water in the inner tub 17 to achieve a better washing effect.
  • the flow sensor monitors the flow of water in the inner tub 17 in real time.
  • the flow sensor is used to solve the water inflow problem of the non-porous inner drum drum washing machine according to the set water intake amount, ensuring the washing effect, simple structure and convenient operation.
  • the water inlet system includes a water inlet pipe 36 communicating with the inside of the inner cylinder 17, and the temperature detection device and the flow detection device are respectively arranged in the water inlet pipe 36.
  • the water inlet system further includes a water inlet valve 20 arranged on the water inlet pipe.
  • the flow sensor monitors the flow rate of water entering the inner cylinder 17 in real time, and closes the water inlet valve 20 when the set water inlet amount is reached to complete the water inlet. water.
  • the temperature detection device and the flow rate detection device are assembled integrally with the water inlet valve 20, and the three are first assembled and then installed, which reduces installation steps and improves assembly efficiency.
  • the washing machine further includes an outer tube 18 sleeved outside the inner tube 17 and coaxially arranged with the inner tube 17 and a shell 19 arranged outside the outer tube 18, and the heating device 33 is arranged on the outer tube 18 or the shell 19
  • the heating device is provided on the inner wall of the outer cylinder 18, and the heating device is an electromagnetic heating device 33.
  • the electromagnetic heating device 33 is used to heat the inner cylinder 17, thereby heating the clothes in the inner cylinder 17 and the water in the inner cylinder.
  • the structure is simple, the assembly efficiency is high, and the practical promotion of the product is improved.
  • this embodiment also provides a method for controlling a washing machine.
  • the control unit of the washing machine controls the operation of the heating device according to the result detected by the temperature detection device.
  • the heating time of the heating device is too long, which causes the heating temperature to be too high, and the heating device is not cut off in time, which causes certain safety hazards.
  • the heating time of the water in the non-porous inner cylinder is controlled, which effectively avoids the heating time of the heating device from being too short or too long, causing the water in the inner cylinder to overheat Low or too high, affect the washing effect or cause damage to the laundry and washing machine.
  • control unit of the washing machine calculates the heating time T of the inner tub that the heating device needs to heat the inner tub from the initial water temperature to the set water temperature according to the initial water temperature value fed back by the temperature detection device, and controls the heating The device stops working after heating time T;
  • the heating time T of the heating device is:
  • T is the heating time
  • 4.2 is a constant
  • t is the set water temperature
  • t0 is the initial water temperature value detected by the temperature detection device
  • L is the set water intake.
  • the temperature detection device detects the water temperature value once every certain time interval to further improve the accuracy of the measured initial water temperature t0, and avoid a large deviation between the water temperature value measured at the concentrated time and the actual average water temperature value.
  • the control unit of the washing machine judges whether the set water intake is reached according to the current water intake fed back by the flow detection device, if it is, it stops the water intake and determines whether to start the heating device; if not; , Then continue to enter the water.
  • control unit of the washing machine determines whether to start the heating device according to the user's selection of whether to start the heating program.
  • control unit of the washing machine needs to further determine whether the initial water temperature detected by the current temperature detection device reaches the set water temperature, if so, execute the washing program; if not, start the heating device.
  • the set water intake and the set water temperature are set by the user, or are automatically set by the control unit of the washing machine based on detecting the current laundry information, the laundry information includes laundry weight, laundry Material and degree of soiling of clothing.
  • This embodiment introduces the electromagnetic heating device 33 described in Embodiment 1 to Embodiment 3 in detail.
  • the washing machine includes an outer tube 18 coaxially sleeved outside the inner tube 17, the heating device 5 is arranged on the outer tube 18, and the heating device 5 It is an electromagnetic heating device to heat the inside of the outer tube 18 and transfer the heating heat to the washing water contained in the inner tube 17.
  • the inner tub 17 inside the outer tub 18 and the washing water inside the inner tub 17 are heated by electromagnetic heating, thereby achieving the purpose of adjusting the temperature of the washing water in the inner tub 17 of the washing machine. .
  • At least a part of the inner cylinder 17 is made of metal material, and is subjected to the magnetic field generated by the electromagnetic heating device 33 to generate an eddy current effect to generate heat.
  • the outer cylinder 18 is made of plastic material that does not excite the eddy current effect in a magnetic field.
  • all the side walls of the inner cylinder 17 are made of metal materials, and the electromagnetic heating device 33 is correspondingly provided on the side walls of the outer cylinder 18.
  • the electromagnetic heating device 33 is preferably arranged at the lowest part of the outer cylinder 18 to The washing influent water collected at the bottom of the inner tub 17 is directly heated to adjust the temperature of the washing water in the inner tub 17.
  • a plurality of electromagnetic heating devices 33 are arranged on the outer cylinder 18; preferably, the electromagnetic heating devices 33 are arranged on the side of the outer cylinder 18 at a certain angle. On the wall.
  • each heating device 5 can heat the inner cylinder 17 during the rotation of the inner cylinder 17.
  • the electromagnetic heating device 33 includes a rectifier 332 and a plastic shell.
  • the inside of the plastic shell is hollow to form a mounting cavity with one side open.
  • the mounting cavity is equipped with an electromagnetic generator.
  • the electromagnetic generator is
  • the plastic shell is fixedly installed on the outside of the outer cylinder, and the opening of the installation cavity of the plastic shell is set toward the inside of the outer cylinder, so that the electromagnetic field generated by the electromagnetic generator in the installation cavity is transmitted to the inside of the outer cylinder 18 through the opening, and then It is ensured that the part of the inner tube 17 made of metal is in the magnetic field, so that the metal drum is subjected to the eddy current effect in the magnetic field to generate heat, so as to heat the washing water in the inner tube 17.
  • the rectifier 332 may be arranged outside the outer cylinder 18 or on the inner wall of the outer cylinder 18.
  • the electromagnetic generator is provided with connection terminals that pass through the plastic casing, and the connection terminals pass through the bottom of the plastic casing and are connected to the power supply line of the washing machine to supply power to the electromagnetic generator.
  • the heating program starts, the current and voltage are converted into direct current through the rectifier (driver) 332, so that the direct current becomes a high frequency alternating current exceeding audio frequency, and the high frequency alternating current is output to the electromagnetic heating coil 331, thereby generating a high frequency alternating magnetic field.
  • the electromagnetic induction line acts on the outer cylinder 18 made of metal material. In the inner cylinder 17 of the metal, a strong eddy current is generated due to electromagnetic induction. When the eddy current overcomes the internal resistance of the inner cylinder 17 and flows, it completes the conversion of electrical energy to thermal energy, realizing the inner cylinder 17 generates heat, thereby achieving the purpose of heating the water enclosed in the inner cylinder 17
  • a shielding device such as several magnetic strips, can also be provided on the plastic shell to isolate the magnetic field from being transmitted to the outside of the outer cylinder.
  • This embodiment mainly introduces the structure of the flow detection device in the third embodiment in detail, and mainly solves the problem of how to accurately determine the water intake of the non-porous inner drum washing machine.
  • the specific scheme is as follows:
  • a drum washing machine includes an inner tube 17 and a water inlet pipe 36 connected to the inner tube 17.
  • the inner tube 17 is a non-porous inner tube, which contains washing water when washing clothes.
  • the aforementioned water inlet pipe 36 is provided with a flow sensor 1 for detecting the flow of the inlet water.
  • a flow sensor 1 is installed on the water inlet pipe 36 to monitor the flow rate when the water enters. When the set water inlet amount is reached, the water inlet valve 20 is closed to complete the water inlet.
  • the flow sensor is used to solve the water inflow problem of the non-porous inner drum washing machine according to the set water level, ensuring the washing effect, simple structure, and convenient operation.
  • the drum washing machine of this embodiment includes a water inlet valve 20 and a detergent box 3.
  • the water inlet pipe 36 includes a first water inlet pipe and a second water inlet pipe.
  • the outlet end of the water inlet valve 20 passes through the first inlet pipe.
  • the water pipe is connected to the detergent box 3, and the outlet end of the detergent box 3 is connected to the inner cylinder 17 through the second water inlet pipe.
  • the flow sensor 1 is arranged on the first water inlet pipe or the second water inlet pipe.
  • the flow sensor 1 is arranged on the first water inlet pipe, so that the detergent in the detergent box can be placed into the flow sensor 1.
  • the drum washing machine of this embodiment includes a main controller 4, and the flow sensor 1 and the main controller 4 are electrically connected through a line.
  • the main controller 4 can collect the water inflow of the inner cylinder 17 in real time to reach the set water inflow, and close the water inlet valve 20.
  • the flow sensor 1 is a rotor flow sensor, or a turbine flow sensor, or an ultrasonic flow sensor, or an electromagnetic flow sensor, or an orifice flow sensor.
  • the flow sensor 1 can be arranged at any position on the water inlet pipeline of this embodiment, and it is preferably arranged at the rear of the water inlet valve 20 to accurately measure the water flow into the sealed inner cylinder 17.
  • the flow sensor 1 is connected to the main controller 4 ,
  • the main controller 4 can collect the water intake of the inner cylinder 17 in real time to reach the set water intake, and close the water intake valve 20.
  • the drum washing machine of this embodiment includes a drive motor 16 and an inner drum shaft 13.
  • the drive motor 16 drives the inner drum through a transmission connection between the inner drum shaft 13 and the inner drum 17.
  • the barrel 17 rotates, the inner barrel shaft 13 has a hollow channel 14 communicating with the inside of the inner barrel 17, and the water inlet pipe communicates with the hollow channel of the inner barrel shaft 13.
  • the inner cylinder shaft 13 is connected to a driving motor 16.
  • the driving motor 16 includes a stator and a rotor, and the rotor is fixedly connected to the inner cylinder shaft 13; a through hole is provided at the center of the rotor, and the water inlet pipe passes through The through hole of the rotor communicates with the hollow channel 14 of the inner cylinder shaft 13.
  • first dynamic sealing structure 15 is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage 14 of the inner cylinder shaft 13.
  • the drum washing machine of this embodiment includes an outer tub 18, an inner tub drain hole is provided on the side wall of the inner tub 17, and a normally closed one-way valve plug 11 is installed on the inner tub drain hole.
  • the said outer cylinder 18 is provided with a jack mechanism 10 for pushing the one-way valve plug 11 to drain water.
  • the outer cylinder 18 is also provided with a locking mechanism for locking the rotation of the inner cylinder 17. After the locking mechanism locks the inner cylinder, the jack mechanism 10 will plug the one-way valve 11 Top open for drainage.
  • a plurality of dehydration holes are provided on the side wall of the inner cylinder 17 in this embodiment, and centrifugal valves are installed on the dehydration holes, and the inner cylinder is controlled to reach a certain speed. The valve is opened under the action of the centrifugal force of the dehydration for washing drainage or dehydration drainage.
  • This embodiment also provides a method for controlling the drum washing machine.
  • the washing machine executes the washing/rinsing procedure.
  • the flow sensor detects the water intake flow value in real time.
  • the washing machine calculates the water intake according to the water intake flow value and the water intake time. , When the water inflow reaches the set water inflow of the washing machine, stop the water inflow.
  • the drum washing machine is provided with multiple inlet water flow values that can be selected by the user, and the washing machine performs water inlet according to the inlet water flow value selected by the user.
  • the drum washing machine has a laundry weighing function, which can determine the flow value of the inlet water according to the weight of the laundry.
  • the main body has a containing chamber inside;
  • the water inlet is arranged on the body and communicates with the containing chamber;
  • centrifugal drainage components arranged in the containing chamber
  • the initial state of the centrifugal drainage assembly is a closed state, and the centrifugal drainage assembly can be opened for drainage under the action of centrifugal force.
  • the laundry lifting device of this embodiment can be installed on the inner wall of the inner tub of the drum washing machine. During the washing process, the laundry is lifted to a certain height with the rotation of the inner tub and dropped.
  • a centrifugal drainage assembly is integrated in the clothes lifting device.
  • the initial state of the centrifugal drainage assembly is a closed state to keep the inner cylinder closed and independently contain the washing water.
  • the centrifugal drainage assembly can be opened for drainage under the action of centrifugal force. Drain of the drum washing machine.
  • the centrifugal drainage assembly is provided in the lifting device, which not only realizes the laundry lifting and drainage of the non-porous inner drum drum washing machine, but also forms a modular supply, which is convenient for production and assembly and improves assembly efficiency.
  • the body described in this embodiment includes:
  • Lifting housing 3201 with protrusions on the surface and an open cavity inside;
  • the lifting base 3208 is detachably mounted on the open end of the open cavity of the lifting housing 3201 to form a containing chamber;
  • the centrifugal drainage assembly is installed on the lifting base 3208, and the water inlet 3209 is provided on the lifting housing 3201 and/or the lifting base 3208.
  • the lifting device of this embodiment includes a lifting shell 3201 with raised parts on the surface for lifting clothes; a lifting base 3208, which is detachably mounted on the open end of the open cavity of the lifting shell 3201 to form a containing chamber, Used to install centrifugal drainage components.
  • the centrifugal drainage assembly described in this embodiment includes:
  • Centrifugal parts produce centrifugal movement under the action of centrifugal force
  • Sealing plunger 3213 used to block the drain
  • the centrifugal movement of the centrifugal member drives the sealing plunger 3213 to move to open the drain;
  • the lifting base 3208 is provided with a plunger via hole for sealing the plunger 3213 to pass through the containing chamber.
  • the centrifugal element of this embodiment includes a connecting portion 3218 and a counterweight portion 3217.
  • One end of the connecting portion 3218 is connected with the counterweight portion 3217, and the other end is rotatably connected with the sealing plunger 3213.
  • the middle of the connecting portion 3218 is rotatably installed
  • the lifting base 3208 forms a lever structure.
  • one end of the connecting portion 3218 is provided with a first connecting hole 3215 rotatably connected with the end of the sealing plunger 3213, and a second connecting hole 3216 is provided at the middle of the connecting portion 3218.
  • the lifting base 3208 described in this embodiment is provided with a guide 3214 at the plunger through hole.
  • the guide 3214 has a guide channel opposite to the plunger through hole, and the sealing plunger 3213 is arranged in the guide channel.
  • the reciprocating movement of the inner edge ensures the stable reciprocating movement of the sealing plunger 3213, so that the sealing plunger 3213 can be reset more accurately to ensure the blocking effect of the drainage port of the inner cylinder.
  • the sealing plunger 3213 of this embodiment is provided with a sealing plug 3204, and the sealing plunger 3213 is sleeved with an elastic member 3203 for providing elastic force for the resetting of the sealing plunger 3213, and the elastic member 3203 is a spring.
  • the lifting base 3208 has a base fixing column 3205, and the open cavity of the lifting body 3201 has a connecting rib 3219 extending toward the open end.
  • the base fixing column 3205 is fixedly connected to the connecting rib 3219.
  • the centrifugal drainage assembly is arranged in the middle of the lifting base 3208, and the base fixing column 3205 includes at least two, which are symmetrically arranged on both sides of the centrifugal drainage assembly.
  • the base fixing post 3205 and the connecting rib 3219 described in this embodiment are clamped and positioned by a clamping structure, and the base fixing post 3205 and the connecting rib 3219 are fixedly connected by a connecting piece 3207 after being positioned.
  • the connecting rib 3219 is provided with a locking protrusion 3221
  • the base fixing column 3205 has a channel for the connecting rib to extend into, and a card slot for engaging with the locking protrusion 3221 is provided on the peripheral wall of the channel. 3222.
  • the connecting rib 3219 in this embodiment is provided with a connecting hole
  • the base fixing column 3205 is provided with a positioning hole opposite to the connecting hole
  • the connecting piece 3207 passes through the positioning hole and is fixedly connected to the connecting hole.
  • the connecting member 3207 is a connecting screw.
  • the open ends of the lifting shell 3201 in this embodiment are respectively provided with shell fixing posts 3202 for fixing and assembling the lifting device, and the lifting base 3208 corresponds to the shell fixing posts.
  • the housing fixing column 3202 of this embodiment makes the structure of the lifting device installed in the inner cylinder unchanged, reduces the learning cost of assembly, and improves assembly efficiency.
  • the lifting base 3208 is a plate-shaped structure that covers the open cavity of the lifting housing 3201, and both ends of the plate-shaped structure are spaced apart from the open edge of the lifting housing.
  • the housing fixing pillars 3202 are correspondingly arranged in the interval between the two ends.
  • the lifting housing 3201 in this embodiment includes an annular base 3211 and a protrusion 3212 integrally formed with the annular base 3211 and protruding toward one side.
  • the water inlet 3209 is arranged on the annular base 3211, and the protrusion 3212 is provided with a plurality of spray holes 3210 communicating with the open cavity.
  • this embodiment also provides a drum washing machine with the laundry lifting device for washing machine, including: an inner tub 17; an inner tub door 6, which can be opened/closed and installed on the opening of the inner tub 17;
  • the inner cylinder door 6 and the inner cylinder 17 together form an independent washing chamber when the inner cylinder door 6 is closed, which independently holds the washing water when washing clothes;
  • the side wall of the inner cylinder 17 is provided with a drainage port, and the lifting device 32 is installed in On the drain port on the inner wall of the inner cylinder 17, the centrifugal drain assembly blocks and closes the drain port.
  • the inner tube door 6 is installed on the mouth of the inner tube 17, and the inner tube 17 adopts a non-porous tube design.
  • the two together form an independent washing chamber.
  • the washing/rinsing water is filled between the inner tube and the outer tube, which greatly reduces the washing water consumption of the washing machine; avoids the possibility of dirt adhesion between the inner tube and the outer tube; greatly improves the health and user experience of the user. Great savings in water resources.
  • the side wall of the inner cylinder 17 is provided with a fixing hole for fixing and assembling the lifting device 32, and the lifting device 32 is sealed and fixed to the fixing hole by a connecting member, and the inner cylinder 17 is sealed and connected to maintain the fixing hole.
  • the sealing achieves the purpose of the invention of independently holding washing water.
  • the washing machine includes an inner tub.
  • the inner tub contains washing water.
  • a drainage hole is provided on the side wall of the inner tub.
  • the drainage hole is equipped with a lifting device that controls its on/off.
  • the method includes: during the washing process of the washing machine, by controlling the rotation speed of the inner tub to reach or exceed the set rotation speed N0, the centrifugal drainage component of the lifting device receives centrifugal force to open the drainage hole to drain the inner tub.
  • the drainage device of this embodiment adopts a centrifugal drainage assembly.
  • the control method is to control the rotation of the inner cylinder to generate centrifugal force to open the centrifugal drainage assembly to achieve drainage.
  • the centrifugal drainage assembly + program control the drainage and dehydration of the drum washing machine without the inner cylinder .
  • the inner tub is controlled to reach the first rotation speed N1 and maintain a set time t1, where N1 ⁇ N0, and N0 is greater than the washing or rinsing program.
  • the rotation speed of the inner cylinder in the program when the rotation time of the inner cylinder holding the rotation speed N1 reaches t1, control the inner cylinder to stop rotating and enter the next program;
  • N1 is 110-400 revolutions/min, more preferably 170 ⁇ 50 revolutions/min, and further preferably 150 ⁇ 20 revolutions/min;
  • t1 is in the range of 0.1-5 minutes, more preferably 1-2 minutes.
  • the washing machine includes a weighing device for weighing the weight in the inner tub, the weighing device detects the weight W0 in the inner tub before the inner tub starts to rotate at N1, and when the rotation time reaches t1, the weighing device detects the inner tub The weight of W1, the control system judges whether the drainage is normal according to the comparison between W1 and W0.
  • control system judges whether the drainage is abnormal by comparing the value k of W1/W0. If k ⁇ 0.7, the control system determines that the drainage is abnormal and gives an alarm; otherwise, the drainage is normal.
  • the inner tub is controlled to reach the first rotational speed N1, where N1 ⁇ N0, and N0 is greater than the rotational speed of the inner tub in the washing or rinsing process ;
  • N1 ⁇ N0, and N0 is greater than the rotational speed of the inner tub in the washing or rinsing process ;
  • the washing machine includes a weighing device for weighing the weight of the inner tub.
  • the control system judges whether the drainage is completed according to the weight value in the inner tub detected by the weighing device in real time .
  • control system judging whether the drainage is completed according to the weight value in the inner cylinder detected in real time by the weighing device includes:
  • the washing machine executes a dehydration process, and the minimum spin speed N2 in the dehydration process is greater than or equal to N0.
  • This embodiment mainly solves the problem of how to ensure the air pressure imbalance in the sealed compartment of the non-porous inner drum washing machine. Specifically, the sudden water cut of the solenoid valve, especially the water cut of the tap water pipe network, forms a negative pressure to return the washing water in the sealed compartment Wash to the pipe network; or there is gas inside and difficult to enter water.
  • a drum washing machine of this embodiment includes an inner tube 17, which is a non-porous inner tube, which contains washing water when washing clothes, and also includes a drum for communicating the inner tube 17 with the external environment.
  • the air pressure balance mechanism that balances the air pressure inside the inner cylinder.
  • the gas in the sealed compartment of the inner cylinder can overflow through the equalizing mechanism under pressure to ensure air pressure balance.
  • the outside atmosphere can quickly enter the sealed compartment of the inner cylinder and break the suction, ensure the air pressure balance, and prevent the washing water from being sucked into the tap water pipe network.
  • the air pressure balance mechanism can also ensure the air pressure balance of the inner cylinder.
  • the air pressure balancing mechanism includes a pressure equalizing channel 27 provided on the inner cylinder 17, and one end of the pressure equalizing channel 27 connected to the inner cylinder 17 is provided on the inner cylinder 17 close to rotating The position of the central axis is always higher than the highest water level in the inner cylinder 17.
  • the drum washing machine of this embodiment includes a driving motor 16 and an inner drum shaft 13.
  • the driving motor 16 drives the inner drum 17 to rotate through a transmission connection between the inner drum shaft 13 and the inner drum 17, and the pressure equalizing channel 27 is opened in the inner drum.
  • the shaft 13 communicates the inside of the inner cylinder 17 with the external environment, and the highest water level in the inner cylinder 17 is lower than the inner cylinder shaft 13. In this way, the water in the inner cylinder can be prevented from flowing out of the pressure equalizing channel.
  • the drum washing machine of this embodiment includes an outer tub 18, the inner tub 17 is arranged inside the outer tub 18, the water discharged from the inner tub 17 is discharged through the outer tub 18, and the opening of the inner tub 17 is installed to close the inner tub In the cylinder door 6, the cylinder mouth of the outer cylinder 18 is open, one end of the pressure equalization channel 27 is connected to the inside of the inner cylinder 17, and the other end is arranged inside the outer cylinder 18 to communicate with it. In this way, to prevent extreme situations, the water from the hole can also be collected in the outer cylinder 18.
  • the inner cylinder 17 is provided with an inner cylinder drain hole on the side wall of this embodiment, a normally closed one-way valve plug 11 is installed on the inner cylinder drain hole, and the outer cylinder 18 is installed on the one-way valve The plug 11 pushes open the ejector mechanism 10 for draining water.
  • the outer cylinder 18 is also provided with a locking mechanism for locking the inner cylinder from rotating. After the locking mechanism locks the inner cylinder, the ejector mechanism pushes the one-way valve plug to drain.
  • the drum washing machine of this embodiment includes a water inlet pipe, the inner barrel shaft 13 has a hollow channel 14 communicating with the inner barrel 17 and the water inlet pipe communicates with the hollow channel 14 of the inner barrel shaft 13
  • the pressure equalizing channel 27 and the hollow channel 14 are respectively communicated with the inner cylinder 17 and isolated from each other. In this way, it can be ensured that the gas in the sealed compartment of the inner cylinder can be smoothly discharged to maintain the balance of the air pressure inside the inner cylinder, and at the same time, it is prevented that the influent water is directly discharged through the pressure equalizing channel 27 and leaks.
  • the hollow passage 27 extends from one end to the other along the direction of the central axis of the inner cylinder shaft
  • the pressure equalization channel includes a first channel section and a second channel section, and the first channel section is parallel to the hollow channel.
  • One end is connected to the inner cylinder
  • one end of the second channel section is connected with the first channel section
  • the other end extends to the outer peripheral wall of the inner cylinder shaft to communicate with the inside of the outer cylinder.
  • the second channel section is perpendicular to the first channel section to form an L-shaped pressure equalizing channel.
  • the inner cylinder shaft 13 is connected to a driving motor 16.
  • the driving motor 16 includes a stator and a rotor, and the rotor is fixedly connected to the inner cylinder shaft; a through hole is provided at the center of the rotor, and the water inlet pipe passes through the rotor. The through hole is communicated with the hollow channel of the inner cylinder shaft.
  • a first dynamic sealing structure is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage of the inner cylinder shaft.
  • a plurality of dehydration holes are opened on the side wall of the inner tub 17, and centrifugal valves are installed on the dehydration holes, and the centrifugal valves are opened under the action of the dehydration centrifugal force for dehydration and drainage.
  • This embodiment mainly solves the problem of how to ensure the air pressure imbalance in the sealed compartment of the non-porous inner drum washing machine. Specifically, the sudden water cut of the solenoid valve, especially the water cut of the tap water pipe network, forms a negative pressure to return the washing water in the sealed compartment Wash to the pipe network; or there is gas inside and difficult to enter water.
  • a drum washing machine of this embodiment includes an inner tube 17, which is a non-porous inner tube, which contains washing water when washing clothes, and also includes an inner tube for connecting the inner tube with the external environment for balance A pressure-increasing mechanism and/or a pressure-releasing mechanism for the air pressure inside the inner cylinder 17.
  • the pressurizing mechanism described in this embodiment includes a pressurizing port 28 and a negative pressure safety valve 29.
  • the negative pressure safety valve 29 is provided on the pressurizing port 28 and is used when the internal pressure of the inner cylinder 17 is lower than the atmospheric pressure of the external environment. Guided through the pressurizing channel 28, the ambient air enters the inner cylinder 17 through the pressurizing channel 28 to be pressurized until the internal air pressure of the inner cylinder 17 is balanced with the ambient air pressure, and the negative pressure safety valve 29 is closed.
  • the pressure relief mechanism described in this embodiment includes a pressure relief port 30 and a positive pressure safety valve 31.
  • the pressure relief port 30 is arranged on the inner cylinder 17 at a position close to the central axis of rotation and is always higher than the highest in the inner cylinder 17.
  • the positive pressure safety valve 31 is set on the pressure relief port 30, and is used to release the pressure through the one-way pressure relief port 30 when the internal pressure of the inner cylinder 17 is greater than the atmospheric pressure of the outside environment, until the internal pressure of the inner cylinder 17 and the outside The ambient air pressure is balanced, and the positive pressure safety valve 31 is closed.
  • the gas in the sealed compartment of the inner cylinder 17 is pressurized. Once it is greater than the set value of the positive pressure safety valve, the positive pressure safety valve opens, which can overflow through the pressure relief port to ensure air pressure balance.
  • the drum washing machine of this embodiment includes a driving motor 16 and an inner drum shaft 13.
  • the driving motor 16 drives the inner drum 17 to rotate through a transmission connection between the inner drum shaft 13 and the inner drum 17, and the pressurization channel 28 and/or drain
  • the pressure channel 30 is opened on the inner cylinder shaft 13 to communicate the inside of the inner cylinder 17 with the external environment, and the highest water level in the inner cylinder 17 is lower than the inner cylinder shaft 13.
  • the drum washing machine of this embodiment includes an outer tub 18, the inner tub 17 is arranged inside the outer tub 18, the water discharged from the inner tub 17 is discharged through the outer tub 18, and an inner tub that closes the inner tub is installed at the mouth of the inner tub 17 Door 6, the cylinder mouth of the outer cylinder 18 is open, one end of the pressure-increasing channel 28 and/or the pressure-relief channel 30 communicates with the inner cylinder 17, and the other end is arranged inside the outer cylinder 18 to communicate with it.
  • the drum washing machine of this embodiment includes a water inlet pipe, the inner barrel shaft 13 has a hollow channel 14 communicating with the inner barrel 17, and the water inlet pipe communicates with the hollow channel 14 of the inner barrel shaft 13;
  • the pressure relief channel 30 and the hollow channel 14 are respectively communicated with the inner cylinder 17 and are separated from each other.
  • the hollow passage 14 extends from one end to the other along the central axis of the inner cylinder shaft 13, and the pressure relief channel 30 includes a first channel section and a second channel section.
  • the first channel section It is arranged in parallel with the hollow channel, one end of which is connected to the inside of the inner cylinder, one end of the second channel section is connected to the first channel section, and the other end extends to the outer peripheral wall of the inner cylinder shaft to communicate with the inside of the outer cylinder;
  • the second tunnel section is perpendicular to the first tunnel section to form an L-shaped pressure relief tunnel.
  • the drum washing machine of this embodiment includes a water inlet pipe, the inner barrel shaft 13 has a hollow channel 14 communicating with the inner barrel 17, and the water inlet pipe communicates with the hollow channel 14 of the inner barrel shaft 13;
  • the pressurizing port 28 is communicated with the hollow passage 14.
  • the hollow passage 14 extends from one end to the other along the direction of the central axis of the inner cylindrical shaft 13, one end of the pressurizing channel 28 is connected to the hollow passage 14, and the other end extends to the outer circumference of the inner cylindrical shaft 13.
  • the wall communicates with the inside of the outer cylinder 18.
  • the pressurizing channel 28 and the hollow channel 14 are arranged perpendicular to each other.
  • the inner cylinder shaft is connected to a drive motor
  • the drive motor includes a stator and a rotor
  • the rotor is fixedly connected to the inner cylinder shaft
  • a through hole is provided at the center of the rotor, and the water inlet pipe passes through the through hole of the rotor It communicates with the hollow channel of the inner cylinder shaft.
  • a first dynamic sealing structure is provided between the water inlet pipe and the through hole of the rotor, and a second sealing structure is provided between the through hole of the rotor and the hollow passage of the inner cylinder shaft.
  • the pressurization channel 28 and the pressure relief channel 30 are both provided on the inner cylinder shaft 13, and the openings for communicating with the atmosphere are all inside the outer cylinder 18; the openings of the sealed cabin connected to the inner cylinder 17 are all on the inner cylinder shaft 13.

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  • Engineering & Computer Science (AREA)
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Abstract

一种洗衣机及其控制方法,所述洗衣机包括内筒(17),洗涤衣物时独立盛放洗涤水;进水系统,所述进水系统与所述内筒(17)连通;加热装置(33),加热所述内筒(17)内的水;温度检测装置,设置在进水系统内检测进水温度。当洗衣机执行进水程序时,洗衣机的控制单元根据温度检测装置检测到的结果,控制所述加热装置(33)的加热时间。通过加热装置和温度检测装置结合的方式,实现对无孔内筒内洗涤水的加热时间进行控制,有效地避免了由于加热装置的加热时间不到或者过长导致水温过低或过高,影响洗衣机的正常工作。

Description

一种洗衣机及其控制方法 技术领域
本发明属于洗衣机技术领域,具体地说,涉及一种洗衣机及其控制方法。
背景技术
洗衣机是人们日常生活中比较常用的家用电器之一。洗衣机的使用,为人们的生活带来便利。现有技术中的滚筒洗衣机,外筒盛水,内筒旋转洗涤,内筒壁上设置有孔,用于向内筒中进洗涤水或者用于对内筒中的衣物进行脱水,洗涤水长时间在内外筒之间流动,导致内、外筒的夹层之间会积存脏污、水垢,造成大量细菌繁殖,对衣物造成二次污染,严重威胁消费者的健康,并且内筒和外筒中间夹层之间的水的填充造成无用的水浪费,因此,人们设计了无孔内筒洗衣机。
随着人们生活质量的不断提高,人们对洗衣机洗衣效果的要求也越来越高。因此,用户在洗涤过程中一般都会对洗涤水进行加热,不仅可以提高洗涤剂的去污能力,同时加热的洗涤水还可以对衣物杀菌消毒。常规的加热装置是设置在洗衣机的外筒上,对洗衣机内筒和外筒之间的水进行加热,但是,由于无孔内筒洗衣机在内筒和外筒之间无水,无法对内筒内的洗涤水进行加热,因此,无孔内筒的洗衣机如何为内筒内的洗涤水进行加热是本领域技术人员急需解决的问题。
并且,由于在加热的过程中,加热时间控制不好,加热时间过短水温偏低导致洗涤效果效果差,或者加热时间过长水温过高,导致衣物变形、褪色、对一些衣物造成不可恢复的伤害,而且加热时间过长也需要消耗大量的电能,造成过多电量的浪费,因此,如何控制无孔内筒洗衣机内洗涤水的加热时间也是本领域技术人员急需解决的问题。
有鉴于此,特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足,本发明提供了一种洗衣机及其控制方法,实现对无孔内筒内的水的加热时间进行控制,有效地避免了由于加热装置的加热时间过短或者过长,导致内筒内的水温过低或者过高,影响洗涤效果或者对洗涤衣物及洗衣机造成损伤。
为了实现该目的,本发明采用如下技术方案:
一种洗衣机,包括:
内筒,洗涤衣物时独立盛放洗涤水;
进水系统,所述进水系统与所述内筒连通;
加热装置,加热所述内筒内的水;
温度检测装置,设置在进水系统内检测进水温度。
进一步的,还包括设置在进水系统内检测进水量的流量检测装置;
优选地,所述流量检测装置为流量传感器,所述温度检测装置为温度传感器。
进一步的,所述进水系统包括与内筒内部相连通的进水管路,所述温度检测装置和流量检测装置分别设置在进水管路内;
优选地,所述进水系统还包括设置在进水管路上的进水阀,所温度检测装置和流量检测装置与进水阀组装一体设置。
进一步的,还包括套设在内筒外部与内筒同轴设置的外筒和设置在外筒外部的外壳,所述加热装置设置在外筒或者外壳上;
优选地,所述加热装置设置在外筒的内壁,所述加热装置为电磁加热装置。
本发明还提供了一种洗衣机的控制方法,当洗衣机执行进水程序时,洗衣机的控制单元根据温度检测装置检测到的结果,控制所述加热装置的工作。
进一步的,所述洗衣机的控制单元根据温度检测装置反馈的初始水温值,计算出内筒内的水从初始水温加热达到设定水温所述加热装置需对内筒的加热时间T,并控制加热装置加热时间T后停止工作;
所述加热装置的加热时间T为:
T=4.2·(t–t0)·L/3600;
其中:T为加热时间,4.2为常数,t为设定水温,t0为初始水温,L为设定进水量。
进一步的,所述初始水温t0=(t1+t2+t3+t4+、、、tn)/n,其中n≥3;t1~tn为在洗衣机进水过程中,温度检测装置在不同时间检测到的不同水温值;
优选地,所述温度检测装置在每间隔一定时间检测一次水温值。
进一步的,当洗衣机执行进水程序时,所述洗衣机的控制单元根据流量检测装置反馈的当前进水量,判断是否到达设定进水量,若是,则停止进水,并进行是否启动加热装置的判断;若否,则继续进水。
进一步的,所述洗衣机的控制单元根据用户选择是否启动加热程序,判断是否启动加热装置。
进一步的,当用户选择启动加热程序时,洗衣机的控制单元还需进一步判断当前温度检测装置检测到的初始水温是否达到设定水温,若是,则执行洗涤程序;若否,则启动加热装置。
采用上述技术方案后,本发明与现有技术相比具有以下有益效果。
1、本发明提供的洗衣机通过采用温度检测装置与加热装置结合的方式,实现对无孔内筒内的水的加热时间进行控制,有效地避免了由于加热装置的加热时间过短或者过长,导致内筒内的水温过低或者过高,影响洗涤效果或者对洗涤衣物及洗衣机造成损伤。
2、本发明提供的洗衣机通过自动控制加热装置加热时间,不仅提高了洗衣机的智能化水平,还有效地避免了加热时间过长,造成电能的不必要浪费。
3、本发明提供的洗衣机采用电磁加热装置对内筒进行加热,进而加热内筒中的衣物以及内筒中的水,结构简单,装配效率高,提高了产品的实用推广。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
图1是本发明实施例一\实施例二滚筒洗衣机的原理示意图;
图2是本发明实施例一\实施例二滚筒洗衣机的另外一种原理示意图;
图3是本发明实施例二滚筒洗衣机的原理示意图;
图4是本发明实施例三滚筒洗衣机的原理示意图;
图5是本发明实施例三滚筒洗衣机控制方法的流程图;
图6是本发明实施例四电磁加热装置的结构示意图;
图7是本发明实施例五滚筒洗衣机的原理示意图;
图8本发明实施例六的滚筒洗衣机的原理示意图;
图9本发明实施例六的洗衣机用衣物提升装置的立体结构示意图一;
图10本发明实施例六的洗衣机用衣物提升装置的立体结构示意图二;
图11本发明实施例六的洗衣机用衣物提升装置的主视图;
图12本发明实施例六的洗衣机用衣物提升装置沿图11中A-A面的剖视图;
图13本发明实施例六的洗衣机用衣物提升装置沿图11中B-B面的剖视图(实施方式一);
图14本发明实施例六的洗衣机用衣物提升装置沿图11中B-B面的剖视图(实施方式二);
图15本发明实施例七的滚筒洗衣机的原理示意图;
图16本发明实施例七的滚筒洗衣机的图15中的局部放大图(泄压状态);
图17本发明实施例七的滚筒洗衣机的图15中的局部放大图(增压状态);
图18本发明实施例八的滚筒洗衣机的原理示意图;
图19本发明实施例八的滚筒洗衣机的图18中的局部放大图(实施方式一的泄压状态);
图20本发明实施例八的滚筒洗衣机的图18中的局部放大图(实施方式一的增压状态);
图21本发明实施例八的滚筒洗衣机的图18中的局部放大图(实施方式二的泄压状态);
图22本发明实施例八的滚筒洗衣机的图18中的局部放大图(实施方式二的增压状态)。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对实施例中的技术方案进行清楚、完整地描述,以下实施例用于说明本发明,但不用来限制本发明的范围。
如图1-图22所示,本实施例提供一种无孔内筒前开式结构的滚筒洗衣机,结构简单,能够无需在内筒与外筒之间填充洗涤/漂洗水而极大的减少了洗衣机的洗涤用水量。避免了内筒与外筒之间污垢附着的可能。极大的提高了用户健康及用户体验,极大的节约了水资源。
本实施例的滚筒洗衣机具有外壳19,外壳19包括:上台面板2,前面板,后背板和底板。底板上安装固定了底脚9,用于支撑整个洗衣机。外壳19内部具有外筒18,外筒18内同轴设置了内筒17。外筒18主要目的为了收集内筒17的排水及内筒17高速离心脱水的排水。内筒17旋转,优选地是设置了提升筋,不断的提升跌落摔打衣物,以便洗净衣物。内筒17是无孔结构的。外筒18具有中心安装孔,安装固定了轴承12。与内筒17紧固连接的内筒轴13穿过所示轴承12并连接驱动电机16。内筒17前部筒口上安装可开启/闭合的内筒门6,进而实现内筒17为密封舱结构。外壳19上安装可开启/关闭的机门5。
实施例一
本实施例主要解决了无孔内筒洗衣机在执行加热程序时,由于不能控制好加热的温度,导致水温偏低,影响洗涤效果;或者,水温偏高,对衣物造成损伤的问题。
结合图1和图2,本实施例提供了一种洗衣机包括:内筒17,洗涤衣物时独立盛放洗涤水,避免了在内筒17外部积存和过流洗涤水造成的污垢堆积和细菌滋生的问题; 电磁加热装置33,加热所述内筒17,进而加热内筒17内的洗涤水,增强去污能力,同时加热的洗涤水还可以对衣物杀菌消毒;温度检测装置34,直接检测内筒17中的水温,或者,检测内筒17的温度,或者,检测内筒17外一定距离位置处的温度。所述温度检测装置34和电磁加热装置33分别与洗衣机的主控制器4电连接,所述洗衣机的主控制器4根据温度检测装置34检测到的温度值,对内筒17内的水温进行判定,进而控制电磁加热装置33的工作。
本实施例提供的洗衣机,还包括套设在内筒17外部与内筒17同轴设置的外筒18,所述温度检测装置34可以与电磁加热装置33组装一体设置,简化了安装步骤;或者,直接固定安装在在外筒18上,优选地,设置在外筒18的内壁上,通过检测外筒18温度间接判定内筒17内的水的温度;或者,也可以通过固定结构固定设置在内筒17和外筒18之间的任意位置,温度检测装置34距离内筒17更近,测量的温度值与内筒17内的水温更为接近,通过检测内筒17和外筒18之间温度间接判定内筒17内水的温度。
本实施例中,所述温度检测装置34为温度传感器,通过温度传感器对内筒17中的水温进行检测,为主控制器4提供当前温度,保证主控制器4对内筒17中的水温进行控制达到较好的洗涤效果。所述温度传感器为电阻式温度检测器;或者,为半导体传感器;或者,为热电偶;或者,为NTC温度传感器。较为优选地,为NTC温度传感器,其是由具有负温度系数的热敏电阻与导线连接而成,利用NTC热敏电阻在一定的测量功率下,电阻值随着温度上升而迅速下降。利用这一特性,可将NTC热敏电阻通过测量其电阻值来确定相应的温度,并通过信号线34传输至洗衣机的主控制器4,从而达到检测和控制内筒17内水温的目的。
本实施例中,所述电磁加热装置33包括电磁加热线圈331和整流器332,加热程序启动,电流电压经过整流器(驱动器)332转换为直流电,使得直流电变为超过音频的高频交流电,将高频交流电输出给所述电磁加热线圈331上,由此产生高频交变磁场,其电磁感应线作用在金属材质的外筒18上,在金属内筒17内因电磁感应就有强大的涡流产生,涡流克服内筒17体的内阻流动时完成电能向热能的转换,实现内筒17发热,进而实现加热内筒17内封装的水的目的。
所述电磁加热装置33设置在外筒18上,所述电磁加热装置33也可以设置在洗衣机的机壳19上,优选地,如图1中所示,所述电磁加热装置33设置在外筒18内壁。采用电磁加热装置33对内筒17进行加热,进而加热内筒17中的衣物以及内筒17中的水,结构简单,装配效率高,提高了产品的实用推广。
本实施例中,所述内筒17对应电磁加热装置33的加热区域划分为直接加热区和间接加热区,为了使得加热更均匀在电磁加热装置33启动的同时,控制内筒17旋转,增大内筒17直接受热的面积,同时使得加热更均匀,位于电磁加热装置33的加热范围内 的内筒17被划分为直接加热区,通过热传递受热的内筒17被划分为间接加热区,所述温度检测装置34对应直接加热区或者间接加热区设置在外筒18的内壁上。
所述的内筒17的至少部分结构为金属材质构成,以受到所述的电磁加热装置33产生的磁场而产生涡流效应以发热,并将加热热量传递给所述内筒17中的水,提高水温增强洗衣机的洗涤效果。
优选地,所述温度检测装置34对应间接加热区设置在外筒18的内壁上,由于直接加热区的内筒17内的水的温度相比与实际水温要高很多,因此,将温度检测装置34设置在间接加热区对应的外筒18内壁上进行测量内筒17内的水温,更为准确。
更优选地,如图2所示,所述温度检测装置34和电磁加热装置33均设置在外筒18内壁的圆周上,温度检测装置34设置在距离电磁加热装置33的轴向距离最远的位置,并且二者在外筒18横截面上的投影落在同一直径的两个端点上。所述温度检测装置34设置在距离电磁加热装置34最远端,进行测量内筒17内的水温,误差小,更为准确。
为了确保温度测量的精准性,避免偶然误差,在外筒18内壁设置多个温度传感器,同时对内筒17内的水温进行测量,多个温度传感器分别与所述主控制器4电连接,所述温度传感器间隔一定距离的设置在外筒18内壁上,得到内筒17不同位置的多个温度值,然后计算得出温度平均值,减少测量误差。
优选地,所述温度传感器均匀分布设置在直接加热区对应的外筒18内壁、间接加热区对应的外筒18内壁上,避免了仅对位于直接加热区或者非直接加热区内的水温进行测量,导致测量结果与实际水温偏差较大。
本实施例还提供了洗衣机的控制方法,洗衣机的控制单元根据温度检测装置反馈的结果,判定当前内筒内的水温,控制电磁加热装置的通断。避免了加热温度过高,不能及时切断电磁加热装置,造成一定的安全隐患。
具体的,所述温度传感器将检测到的温度值t传输至洗衣机的控制单元,所述控制单元计算分析得出当前水温t′,并判断是否到达设定温度t0,若是,则控制电磁加热装置断电;若否,则控制电磁加热装置保持通电。避免了水温偏低造成洗涤剂溶解不充分、衣物上的脏污的有机物质不能够溶解,导致洗清衣物清洗效果降低,或者,水温偏高造成衣物变形、褪色、损伤或者温度过高对洗衣机造成一定损伤。
优选地,所述温度传感器为多个,多个所述温度传感器将检测到的温度值t1、t2、t3、、、tn分别传输给洗衣机的控制单元,所述控制单元计算分析得出内筒内的水温t1′、t2′、t3′、、、tn′,计算得出当前水温t′=(t1′+t2′+t3′+、、、tn′)/n,同时判断是否到达设定温度t0,若是,则控制电磁加热装置断电;若否,则控制电磁加热装置保持通电。通过采用求平均值的方式,得出内筒内的当前水温,准确度更高。
实施例二
本实施例是在实施例一的基础上进行的改进,采用了非接触式的温度检测装置,测温结果更精确。
结合图1、图2、图3,本实施例提供了一种洗衣机,包括:内筒17,洗涤衣物时独立盛放洗涤水,避免了在内筒17外部积存和过流洗涤水造成的污垢堆积和细菌滋生的问题;电磁加热装置33,加热所述内筒17内的水,增强去污能力,同时加热的洗涤水还可以对衣物杀菌消毒;非接触式温度检测装置37,检测内筒17中的水温,或者,检测内筒17的温度,本实施例采用的非接触式温度检测装置精度高,分辨率高,响应时间快,不用直接接触内筒17、或内筒17内水,就能够精确地测量出内筒17或者内筒17内的水温,所述非接触式温度检测装置37和电磁加热装置33分别与洗衣机的主控制器4电连接。所述洗衣机的主控制器4根据非接触式温度检测装置37检测到的温度值,对内筒17内的水温进行判定,进而控制电磁加热装置33的工作。
由于非接触式温度检测装置37不需要与被检测的物体之间直接接触,因此,其设置位置更为灵活、不受限制,易于安装,所述非接触式温度检测装置37可以与电磁加热装置33组装一体设置,简化安装步骤;或者,还包括套设在内筒17外部与内筒17同轴设置的外筒18,或者,直接固定安装在设置在外筒18上,优选地,设置在外筒18的内壁上;或者,还包括设置在外筒18外部的外壳19,所述非接触式温度检测装置37设置在外壳19上。
本实施中,所述非接触式温度检测装置37为非接触式温度传感器,通过温度传感器对内筒17中的水温进行检测,为主控制器4提供当前温度,保证主控制器4对内筒17中的水温进行控制达到较好的洗涤效果。
所述非接触式温度传感器为红外温度传感器;或者,为超声波温度传感器;或者,为微波测温温度传感器;或者,为激光温度传感器。
优选地,所述非接触式温度传感器为红外温度传感器,红外温度传感器由光学系统、光电探测器、信号放大器及信号处理等部分组成。光学系统汇聚其视场内的目标红外辐射能量,视场的大小由测温仪的光学零件及其位置确定。红外能量聚焦在光电探测器上并转变为相应的电信号。该信号经过放大器和信号处理电路,并按照仪器内部的算法和目标发射率校正后转变为被测目标的温度值。并通过信号线35传输至洗衣机的主控制器4,从而达到检测和控制内筒17内水温的目的。
所述红外温度传感器可以测量内筒17表面的温度,进而间接的得到内筒17内的水温,或者也可以直接测量内筒17内的水的温度,具体的,在内筒17筒体上设置一红外窗口,所述红外温度传感器探测器的探测头透过红外窗口直接测量内筒17内水的温度, 所述红外窗口是一个可以透过紫外线、可见光、红外线的光学窗口,将所述红外窗口安装在内筒17筒体上,就可实现内筒17在封闭运行状态下红外成像测温,进而实现直接测量内筒17内水温的目的。
本实施例中,所述内筒17包括一内筒门6,所述内筒门6可开启/关闭的安装在内筒的筒口上,用于投放衣物等,所述红外温度传感器设置在外筒18内壁,其探测头朝向内筒17筒体表面。或者,如图3中所示,所述红外温度传感器设置在外壳19上安装的可开启/关闭的机门5上,所述红外传感器探测器的探测头直接朝向内筒门6表面,进而,间接测量内筒17内的水温。
所述内筒17对应电磁加热装置33的加热区域划分为直接加热区和间接加热区,为了使得加热更均匀在电磁加热装置33启动的同时,控制内筒17旋转,增大内筒17直接受热的面积,同时使得加热更均匀,位于电磁加热装置33的加热范围内的内筒17被划分为直接加热区,通过热传递受热的内筒17被划分为间接加热区,所述红外温度传感器探测器的探测头朝向间接加热区的内筒17的筒体表面。由于直接加热区的内筒17的水温相比与实际水温要高很多,因此,将红外温度传感器的探测器的探测头朝向位于间接加热区的内筒17外表面进行测量内筒17内的水温,更为准确。
为了确保温度测量的精准性,所述红外温度传感器为多个,分别与所述主控制器4电连接,多个所述温度传感器间隔一定距离或者间隔一定角度的设置在外筒17内壁,所述温度传感器的探测头朝向不同位置的内筒17的筒体表面,进而得到内筒17不同位置的多个温度值,然后计算得出温度平均值,减少测量误差。
优选地,多个所述温度传感器的探测器的探测头分别朝向位于直接加热区的内筒17筒体表面和间接加热区的内筒17筒体表面。避免了仅对位于直接加热区或者非直接加热区内的内筒17进行测量,导致测量结果与实际水温偏差较大。
本实施例中,所述电磁加热装置33包括电磁加热线圈331和整流器332,加热程序启动,电流电压经过整流器(驱动器)332转换为直流电,使得直流电变为超过音频的高频交流电,将高频交流电输出给所述电磁加热线圈331上,由此产生高频交变磁场,其电磁感应线作用在金属材质的外筒18上,在金属内筒17内因电磁感应就有强大的涡流产生,涡流克服内筒17体的内阻流动时完成电能向热能的转换,实现内筒17发热,进而实现加热内筒17内封装的水的目的。
所述电磁加热装置33设置在外筒18上,所述电磁加热装置33也可以设置在洗衣机的机壳19上,优选地,所述电磁加热装置33设置在外筒18内壁。采用电磁加热装置33对内筒17进行加热,进而加热内筒17中的衣物以及内筒17中的水,结构简单,装配效率高,提高了产品的实用推广。
本实施例还提供了一种洗衣机的控制方法,洗衣机的控制单元根据非接触式温度检测装置反馈的结果,判定当前内筒内的水温,控制电磁加热装置的通断。避免了加热温度过高,不能及时切断电磁加热装置,造成一定的安全隐患。
具体的,所述红外温度传感器将检测到的温度值t传输至洗衣机的控制单元,所述控制单元计算分析得出当前水温t′,并判断是否到达设定温度t0,若是,则控制电磁加热装置断电;若否,则控制电磁加热装置保持通电。避免了水温偏低造成洗涤剂溶解不充分、衣物上的脏污的有机物质不能够溶解,导致洗清衣物清洗效果降低,或者,水温偏高造成衣物变形、褪色、损伤或者温度过高对洗衣机造成一定损伤。
优选地,所述红外温度传感器为多个,多个所述红外温度传感器将检测到的温度值t1、t2、t3、、、tn分别传输给洗衣机的控制单元,所述控制单元计算分析得出内筒内的水温t1′、t2′、t3′、、、tn′,计算得出当前水温t′=(t1′+t2′+t3′+、、、tn′)/n,同时判断是否到达设定温度t0,若是,则控制电磁加热装置断电;若否,则控制电磁加热装置保持通电。通过采用求平均值的方式,得出内筒内的当前水温,准确度更高。
实施例三
本实施例与实施例一和实施例二不同的是,采用的温度检测装置测量的是初始进水温度,洗衣机的控制单元根据当前进水温度及进水量,控制加热装置的工作。
结合图4,本实施例提供了一种洗衣机,包括:内筒17,洗涤衣物时独立盛放洗涤水;进水系统,所述进水系统与所述内筒17连通;加热装置33,加热所述内筒17内的水;温度检测装置(图中未示出),设置在进水系统内检测进水温度。通过在进水系统内设置的温度检测装置可以实时检测到进水的温度,保证洗衣机的控制系统对内筒17中的水温进行控制进而达到较好的洗涤效果。
在上述方案中,所述洗衣机还包括设置在进水系统内检测进水量的流量检测装置(图中未示出);优选地,所述温度检测装置为温度传感器,所述流量检测装置为流量传感器。通过流量传感器的计量向内筒17中进水量,保证洗衣机的控制系统对内筒17中的水量进行控制达到较好的洗涤效果,流量传感器实时监测内筒17内进水时的流量。本实施例采用流量传感器解决了无孔内筒滚筒洗衣机根据设定进水量的进水问题,确保了洗涤效果,结构简单,操控方便。
所述进水系统包括与内筒17内部相连通的进水管路36,所述温度检测装置和流量检测装置分别设置在进水管路36内。
优选地,所述进水系统还包括设置在进水管路上的进水阀20,流量传感器实时监测内筒17内进水时的流量,当达到设定进水量时关闭进水阀20,完成进水。所温度检测装置和流流量检测装置与进水阀20组装一体设置,先把三者组装一体,再进行安装, 减少了安装步骤,提高装配效率。
本实施中,所述洗衣机还包括套设在内筒17外部与内筒17同轴设置的外筒18和设置在外筒18外部的外壳19,所述加热装置33设置在外筒18或者外壳19上;优选地,所述加热装置设置在外筒18的内壁,所述加热装置为电磁加热装置33。采用电磁加热装置33对内筒17进行加热,进而加热内筒17中的衣物以及内筒中的水,结构简单,装配效率高,提高了产品的实用推广。
结合图5,本实施例还提供了一种洗衣机的控制方法,当洗衣机执行进水程序时,洗衣机的控制单元根据温度检测装置检测到的结果,控制所述加热装置的工作。避免了加热装置加热时间过长,导致加热温度过高,不及时切断加热装置,造成一定的安全隐患。通过采用温度检测装置与加热装置结合的方式,实现对无孔内筒内的水的加热时间进行控制,有效地避免了由于加热装置的加热时间过短或者过长,导致内筒内的水温过低或者过高,影响洗涤效果或者对洗涤衣物及洗衣机造成损伤。
具体的,所述洗衣机的控制单元根据温度检测装置反馈的初始水温值,计算出内筒内的水从初始水温加热达到设定水温所述加热装置需对内筒的加热时间T,并控制加热装置加热时间T后停止工作;
所述加热装置的加热时间T为:
T=4.2·(t–t0)·L/3600;
其中:T为加热时间,4.2为常数,t为设定水温,t0为温度检测装置检测到的初始水温值,L为设定进水量。
为了保证测量温度的精准度,可以通过采用求平均值的方式,得出内筒内的初始水温t0,具体的,所述初始水温t0=(t1+t2+t3+t4+、、、tn)/n,其中n≥3;t1~tn为在洗衣机进水过程中,温度检测装置在不同时间检测到的不同水温值。
优选地,所述温度检测装置在每间隔一定时间检测一次水温值,进一步提高测量的初始水温t0的准确度,避免在集中时间测量的水温值与实际平均水温值会存在较大的偏差。
当洗衣机执行进水程序时,所述洗衣机的控制单元根据流量检测装置反馈的当前进水量,判断是否到达设定进水量,若是,则停止进水,并进行是否启动加热装置的判断;若否,则继续进水。
进一步的,所述洗衣机的控制单元根据用户选择是否启动加热程序,判断是否启动加热装置。
进一步的,当用户选择启动加热程序时,洗衣机的控制单元还需进一步判断当前温 度检测装置检测到的初始水温是否达到设定水温,若是,则执行洗涤程序;若否,则启动加热装置。
本实施例中,所述设定进水量和设定水温为用户设定的,或者,为洗衣机的控制单元根据检测到当前洗涤衣物信息自动设定的,所述洗涤衣物信息包括衣物重量、衣物材质以及衣物脏污程度。
实施例四
本实施例对实施例一至实施例三中所述的电磁加热装置33进行详细介绍。
结合图1至图4、图6,洗衣机包括同轴套设在所述内筒17外部的外筒18,所述的加热装置5设置在所述的外筒18上,所述的加热装置5为电磁加热装置,以对外筒18的内部进行加热、并使加热热量传递至内筒17内盛放的洗涤水。
通过在外筒18上设置上述的电磁加热装置33,以利用电磁对外筒18内部的内筒17及内筒17内部的洗涤水进行加热处理,进而达到调节洗衣机内筒17内洗涤水温度的使用目的。
本实施例中,至少部分内筒17由金属材质构成,以受到电磁加热装置33产生的磁场而产生涡流效应以发热。所述外筒18由在磁场中不激发涡流效应的塑料材质构成。优选地,内筒17侧壁全部由金属材质构成,电磁加热装置33对应设于外筒18侧壁上。
本实施例中,由于重力作用使得流入内筒17内的进水会向下汇聚于内筒17底部,因此为了提升加热效率,优选地将电磁加热装置33设置于外筒18最低处,以对汇聚于内筒17底部的洗涤进水直接进行加热、调节内筒17内洗涤水温度。
本实施例中,为了进一步提升加热效率,还可以进行如下设置:外筒18上排布有多个电磁加热装置33;优选地,各电磁加热装置33间隔一定角度的排布于外筒18侧壁上。通过在外筒18上设置多个电磁加热装置33,以在内筒17转动过程中各加热装置5均可对内筒17进行加热处理。
本实施例中,所述电磁加热装置33包括整流器332和一塑料外壳,塑料外壳内部中空围成一侧敞口的安装腔,安装腔内安装有电磁发生器,优选的所述电磁发生器为电磁加热线圈331,塑料外壳固定安装于外筒外侧,且塑料外壳的安装腔敞口朝向外筒内部设置,使安装腔内电磁发生器产生的电磁磁场经敞口传递至外筒18内部,进而保证内筒17由金属材质构成的部分处于磁场中,使金属滚筒在磁场中受涡流效应作用而产生热量,以对内筒17内的洗涤水进行加热。整流器332可以设置在外筒18外也可以设置在外筒18内壁。本实施例中,电磁发生器上设有穿出塑料外壳的接线端子,接线端子自塑料外壳的底部穿出并与洗衣机的供电线相连接,以对电磁发生器供电。
加热程序启动,电流电压经过整流器(驱动器)332转换为直流电,使得直流电变为 超过音频的高频交流电,将高频交流电输出给所述电磁加热线圈331上,由此产生高频交变磁场,其电磁感应线作用在金属材质的外筒18上,在金属内筒17内因电磁感应就有强大的涡流产生,涡流克服内筒17体的内阻流动时完成电能向热能的转换,实现内筒17发热,进而实现加热内筒17内封装的水的目的
本实施例中,为了避免电磁发生器产生的磁场传至外筒外部,还可以在塑料外壳上设置一屏蔽装置,如若干磁条,以隔绝磁场向外筒外部传输。
实施例五
本实施例主要对实施例三中的流量检测装置的结构进行详细介绍,主要解决无孔内筒滚筒洗衣机如何精准确定进水量的问题,具体方案如下:
结合图4和图7,一种滚筒洗衣机,包括内筒17以及与内筒17相连通的进水管路36,所述的内筒17为无孔内筒,洗涤衣物时盛放洗涤水,所述的进水管路36上设置用于检测进水流量的流量传感器1。
本实施例通过在进水管路36上设置流量传感器1来监测进水时的流量,当达到设定进水量,关闭进水阀20,完成进水。本实施例采用流量传感器解决了无孔内筒滚筒洗衣机根据设定水位的进水问题,确保了洗涤效果,结构简单,操控方便。
进一步地,本实施例的滚筒洗衣机,包括进水阀20、洗涤剂盒3,所述的进水管路36包括第一进水管和第二进水管,进水阀20的出口端通过第一进水管连通洗涤剂盒3,洗涤剂盒3的出口端通过第二进水管连通内筒17,所述的流量传感器1设置在第一进水管或者第二进水管上。
优选地,所述的流量传感器1设置在第一进水管上,这样可以放置洗涤剂盒内的洗涤剂进入流量传感器1。
本实施例的滚筒洗衣机包括主控制器4,所述的流量传感器1与主控制器4之间通过线路电连接。主控制器4可以实时收集内筒17的进水量,达到设定进水量,关闭进水阀20。
作为本实施例的一种实施方式,所述的流量传感器1为转子流量传感器,或者涡轮流量传感器,或者超声波流量传感器,或者电磁流量传感器,或者孔板流量传感器。
本实施例所述进水管路上任意位置可以设置流量传感器1,优选的是设置在进水阀20后部,精准计量进入密封内筒17的水流量,所述流量传感器1线路连接主控制器4,主控制器4可以实时收集内筒17的进水量,达到设定进水量,关闭进水阀20。
为了实现向本实施例的无孔内筒内进水,本实施例的滚筒洗衣机包括驱动电机16和内筒轴13,所述的驱动电机16通过内筒轴13与内筒17传动连接带动内筒17转动,所述的内筒轴13内具有连通内筒17内部的中空通道14,所述的进水管路与內筒轴13的中空通道相连通。
具体地,所述的内筒轴13连接驱动电机16,驱动电机16包括定子和转子,转子与内筒轴13固定连接;所述转子的中心处设置通孔,所述的进水管路穿过转子的通孔与内筒轴13的中空通道14相连通。
进一步地,所述的进水管路与转子的通孔之间设置第一动密封结构15,转子的通孔与内筒轴13的中空通道14之间设置第二密封结构。
为了实现无孔内筒的排水,本实施例的滚筒洗衣机包括外筒18,所述内筒17的侧壁上开设内筒排水孔,内筒排水孔上安装常闭的单向阀塞11,所述的外筒18上安装用于将单向阀塞11顶开进行排水的顶杆机构10。
作为本实施例的一种实施方式,所述的外筒18上还设置用于锁止内筒17转动的锁止机构,锁止机构将内筒锁止后顶杆机构10将单向阀塞11顶开进行排水。
作为本实施例的另一种实施方式,本实施例所述内筒17的侧壁上开设多个脱水孔,脱水孔上均安装有离心阀,通过控制内筒达到一定转速,所述的离心阀在脱水离心力的作用下打开进行洗涤排水或者脱水排水。
本实施例同时提供一种所述滚筒洗衣机的控制方法,洗衣机执行洗涤/漂洗程序,进水过程中,流量传感器实时检测进水流量值,洗衣机根据进水流量值以及进水时间计算得到进水量,当进水量达到洗衣机的设定进水量时停止进水。
滚筒洗衣机设置有多个可供用户选择的进水流量值,洗衣机根据用户选定的进水流量值进行进水。
滚筒洗衣机具有衣物称重功能,可根据衣物的重量确定进水的流量值进行进水。
实施例六
结合图8至图14,本实施例的一种洗衣机用衣物提升装置及滚筒洗衣机。
本实施例的一种洗衣机用衣物提升装置,包括:
本体,内部具有容纳腔室;
进水口,设置在本体上与容纳腔室相连通;
及离心排水组件,设置在容纳腔室内;
所述的离心排水组件的初始状态为闭合状态,在离心力作用离心排水组件可开启进行排水。
本实施例的衣物提升装置可安装在滚筒洗衣机的内筒内壁上,在洗衣过程中,随着内筒的转动提升衣物上升至一定高度摔打下落。本实施例在衣物提升装置内集成设置离心排水组件,离心排水组件的初始状态为闭合状态保持内筒封闭独立盛放洗涤水,在离心力作用离心排水组件可开启进行排水实现了具有无孔内筒的滚筒洗衣机的排水。
因此,本实施例将提升装置内设置离心排水组件,不仅实现了无孔内筒滚筒洗衣机的衣物提升及排水,而且形成模块化供货,便于生产组装,提高组装效率。
结合图9-图14,本实施例所述的本体包括:
提升壳体3201,表面具有凸起部,内部具有敞口空腔;
提升基体3208,可拆卸的安装在提升壳体3201的敞口空腔的敞口端,形成容纳腔室;
所述的离心排水组件安装在提升基体3208上,所述的进水口3209设置在提升壳体3201和/或提升基体3208上。
本实施例的提升装置包括提升壳体3201,表面具有凸起部用于提升衣物;提升基体3208,可拆卸的安装在提升壳体3201的敞口空腔的敞口端,形成容纳腔室,用于安装离心排水组件。
进一步地,为了实现离心排水组件的离心排水与安装,本实施例所述的离心排水组件包括:
离心件,在离心力作用下产生离心运动;
密封柱塞3213,用于封堵排水口;
所述离心件离心运动带动密封柱塞3213运动开启排水口;
所述提升基体3208上开设用于密封柱塞3213穿出容纳腔室的柱塞过孔。
本实施例所述离心件包括连接部3218和配重部3217,连接部3218的一端连接配重部3217,另一端与密封柱塞3213可转动的连接,连接部3218的中部可转动的安装在提升基体3208上,形成杠杆结构。
本实施例的连接部3218的一端设置与密封柱塞3213的端部可转动的连接的第一连接孔3215,连接部3218的中部设置第二连接孔3216。
进一步地,本实施例所述的提升基体3208上位于柱塞过孔处安装导向件3214,导向件3214内具有与柱塞过孔相对的导向通道,所述的密封柱塞3213设置在导向通道内沿其往复运动,确保密封柱塞3213稳定的进行往复运动,使得密封柱塞3213能够更加准确的复位保证内筒的排水口的封堵效果。
本实施例的密封柱塞3213上设置密封塞3204,密封柱塞3213上套装用于为密封柱塞3213复位提供弹性力的弹性件3203,所述的弹性件3203为弹簧。
为了实现提升壳体3201与提升基体3208之间的固定连接,所述的提升基体3208具有基体固定柱3205,所述提升本体3201的敞口空腔内具有朝向敞口端延伸的连接筋3219,所述基体固定柱3205与连接筋3219固定连接。
优选地,所述的离心排水组件设置在提升基体3208的中部,所述的基体固定柱3205包括至少两个,对称设置在离心排水组件的两侧。
进一步地,本实施例所述的基体固定柱3205与连接筋3219通过卡接结构卡接定位,所述的基体固定柱3205与连接筋3219定位后通过连接件3207固定连接。
优选地,所述的连接筋3219上设置卡凸3221,所述的基体固定柱3205上具有用于连接筋伸入的通道,通道的周壁上设置与所述卡凸3221配合卡接的卡槽3222。
本实施例所述的连接筋3219上设置连接孔,所述的基体固定柱3205上设置与连接孔相对的定位孔,所述的连接件3207穿过定位孔与连接孔固定连接,优选地,所述的连接件3207为连接螺钉。
为了实现提升装置安装在内筒内,本实施例所述提升壳体3201的敞口两端分别设置用于固定装配提升装置的壳体固定柱3202,所述的提升基体3208对应壳体固定柱3202位置处避让设置,本实施例的壳体固定柱3202使得提升装置安装在内筒里的结构不变,降低装配的学习成本,提高组装效率。
优选地,所述的提升基体3208为封盖在提升壳体3201的敞口腔室上的板状结构,所述板状结构的两端分别与提升壳体的敞口边缘具有一定间隔,所述的壳体固定柱3202对应设置在两端的间隔内。
本实施例所述的提升壳体3201包括环形基部3211和与环形基部3211一体成型且朝向一侧凸出延伸的凸起部3212。
所述的进水口3209设置在环形基部3211上,所述凸起部3212上开设多个与敞口空腔相通的喷淋孔3210。
如图8所示,本实施例同时提供一种具有所述洗衣机用衣物提升装置的滚筒洗衣机,包括:内筒17;内筒门6,可开启/关闭的安装在内筒17的筒口上;所述的内筒门6关闭时与内筒17共同形成独立洗涤腔室,洗涤衣物时独立盛放洗涤水;所述内筒17的侧壁上设置排水口,所述的提升装置32安装在内筒17内壁的排水口上,所述的离心排水组件封堵关闭排水口。
本实施例的滚筒洗衣机通过在内筒17的筒口上安装内筒门6,内筒17采用无孔筒设计,两者共同形成独立洗涤腔室,洗涤衣物时独立盛放洗涤水,能够无需在内筒与外筒之间填充洗涤/漂洗水而极大的减少了洗衣机的洗涤用水量;避免了内筒与外筒之间污垢附着的可能;极大的提高了用户健康及用户体验,极大的节约了水资源。
进一步地,所述内筒17的侧壁上设置用于固定装配提升装置32的固定孔,所述的提升装置32通过连接件密封固定在所述的固定孔上,密封连接保持内筒17的封闭实现独立盛放洗涤水的发明目的。
本实施例滚筒洗衣机的控制方法,洗衣机包括内筒,洗涤衣物时内筒内盛放洗涤水,内筒的侧壁上开设排水孔,排水孔上安装控制其导通/关闭的提升装置,控制方法包括:洗衣机洗衣过程中,通过控制内筒转速达到或者超过设定转速N0,提升装置的离心排水组件受到离心力将排水孔打开进行内筒排水。
本实施例的排水装置采用离心排水组件,控制方法通过控制内筒转动产生离心力将离心排水组件打开实现排水,通过离心排水组件+程序控制的方式实现了无孔内筒的滚筒洗衣机的排水以及脱水。
作为本实施例的一种实施方式,洗衣机执行完洗涤程序或者漂洗程序后,控制内筒 转速达到第一转速N1并维持一设定时间t1,所述的N1≥N0,N0大于洗涤程序或者漂洗程序中內筒的转速;当内筒保持转速N1转动时间达到t1时,控制内筒停止转动进入下一程序;
优选地,N1为110-400转/分钟,更优选的为170±50转/分钟,进一步选优的为150±20转/分钟;
优选地,t1范围在0.1-5分钟之间,更优选的在1-2分钟。
进一步地,洗衣机包括用于称重内筒内重量的称重装置,称重装置检测内筒开始以N1转动之前的内筒内的重量W0,当转动时间达到t1后称重装置检测内筒内的重量W1,控制系统根据W1与W0比较判断是否排水正常。
进一步地,控制系统通过比较W1/W0的值k判断排水是否异常,若k≥0.7,则控制系统判断为排水异常并报警,否则,则排水正常。
作为本实施例的又一种实施方式,洗衣机执行完洗涤程序或者漂洗程序后,控制内筒转速达到第一转速N1,所述的N1≥N0,N0大于洗涤程序或者漂洗程序中內筒的转速;当内筒内的水排完后,控制内筒停止转动进入下一程序。
进一步地,洗衣机包括用于称重内筒内重量的称重装置,在洗衣机控制内筒以N1保持转动的过程中,控制系统根据称重装置实时检测的内筒内的重量值判断是否排水完成。
进一步地,控制系统根据称重装置实时检测的内筒内的重量值判断是否排水完成包括:
称重装置实时检测的内筒内的重量值W0、W1、W2、……、Wt;
将相邻时间的称重值做差,记n1=W1-W0,n2=W2-W1,……,nt=(Wt)-(Wt-1);
当nt在一定时间内保持不变且趋于0时,则排水完成。
进一步地,控制系统通过比较n1、n2、……、nt的变化情况判断排水是否正常,若n1=n2=……=nt=0,则控制系统判断排水异常并报警。
进一步地,洗衣机执行脱水程序,所述脱水程序中的最低脱水转速N2大于等于N0。
实施例七
本实施例主要解决无孔内筒滚筒洗衣机如何保证密封舱气压不平衡的问题,具体是,突然的电磁阀断水,尤其的是自来水管网断水,形成负压,将密封舱内的洗涤水回洗至管网;或者内部有气体,进水困难的问题。
结合图15至图17,本实施例的一种滚筒洗衣机,包括内筒17,内筒17为无孔内筒,洗涤衣物时盛放洗涤水,还包括用于连通内筒17与外界环境以平衡内筒内部气压的气压平衡机构。
进水时,内筒的密封舱内的气体受压可以通过该均平衡机构溢出,保证气压平衡。
突然断水时,外部大气可以迅速进入内筒的密封舱,并破坏倒吸,保证气压平衡, 避免洗涤水被吸入自来水管网。
其他比如脱水时,该气压平衡机构也可以保证内筒气压平衡。
作为本实施例的一种实施方式,所述的气压平衡机构包括设置在内筒17上的均压孔道27,所述均压孔道27连通内筒17内部的一端设置在内筒17上靠近旋转中心轴位置处且始终高于内筒17内的最高水位位置。
本实施例的滚筒洗衣机包括驱动电机16和内筒轴13,所述的驱动电机16通过内筒轴13与内筒17传动连接带动内筒17转动,所述的均压孔道27开设在内筒轴13上连通内筒17内部与外界环境,所述内筒17内的最高水位低于内筒轴13。这样可以防止内筒内的水由均压孔道流出。
本实施例的滚筒洗衣机,包括外筒18,所述的内筒17设置在外筒18内部,内筒17内排出的水经外筒18排出,所述内筒17的筒口安装封闭内筒的内筒门6,所述外筒18的筒口敞开,所述均压孔道27的一端连通内筒17内部,另一端设置在外筒18内部与其相通。这样,防止极端情况,该孔出水也可以收集在外筒18内。
进一步地,本实施例所述内筒17的侧壁上开设内筒排水孔,内筒排水孔上安装常闭的单向阀塞11,所述的外筒18上安装用于将单向阀塞11顶开进行排水的顶杆机构10。
优选地,所述的外筒18上还设置用于锁止内筒转动的锁止机构,锁止机构将内筒锁止后顶杆机构将单向阀塞顶开进行排水。
进一步地,本实施例的滚筒洗衣机包括进水管路,所述的内筒轴13内具有连通内筒17内部的中空通道14,所述的进水管路与內筒轴13的中空通道14相连通;所述的均压孔道27与中空通道14分别与内筒17内部相通且相互隔离设置。这样,可以保证内筒的密封舱内的气体可以顺利排出保持内筒内部的气压平衡,同时防止进水直接由均压孔道27排出而漏水。
具体地,所述的中空通道27沿内筒轴的中心轴线方向由一端延伸至另一端,所述均压孔道包括第一孔道段和第二孔道段,第一孔道段与中空通道相平行设置,其一端连通内筒内部,第二孔道段的一端与第一孔道段相连通,另一端延伸至内筒轴的外周壁上与外筒的内部相通。
优选地,所述的第二孔道段与第一孔道段相垂直设置形成L型的均压孔道。
进一步地,所述的内筒轴13连接驱动电机16,驱动电机16包括定子和转子,转子与内筒轴固定连接;所述转子的中心处设置通孔,所述的进水管路穿过转子的通孔与内筒轴的中空通道相连通。
优选地,所述的进水管路与转子的通孔之间设置第一动密封结构,转子的通孔与内筒轴的中空通道之间设置第二密封结构。
本实施例所述的滚筒洗衣机,所述内筒17的侧壁上开设多个脱水孔,脱水孔上均 安装有离心阀,所述的离心阀在脱水离心力的作用下打开进行脱水排水。
实施例八
本实施例主要解决无孔内筒滚筒洗衣机如何保证密封舱气压不平衡的问题,具体是,突然的电磁阀断水,尤其的是自来水管网断水,形成负压,将密封舱内的洗涤水回洗至管网;或者内部有气体,进水困难的问题。
结合图18至图22,本实施例的一种滚筒洗衣机,包括内筒17,内筒17为无孔内筒,洗涤衣物时盛放洗涤水,还包括用于连通内筒与外界环境以平衡内筒17内部气压的增压机构和/或泄压机构。
本实施例所述的增压机构包括增压孔道28和负压安全阀29,所述的负压安全阀29设置在增压孔道28上,用于内筒17内部压力小于外界环境大气压时单向导通增压孔道28,外界环境气体由增压孔道28进入内筒17内部进行增压,直至内筒17内部气压与外界环境气压平衡,负压安全阀29关闭。
本实施例所述的泄压机构包括泄压孔道30和正压安全阀31,所述的泄压孔道30设置在内筒17上靠近旋转中心轴位置处且始终高于内筒17内的最高水位位置,所述的正压安全阀31设置在泄压孔道30上,用于内筒17内部压力大于外界环境大气压时单向导通泄压孔道30进行泄压,直至内筒17内部气压与外界环境气压平衡,正压安全阀31关闭。
结合图19,进水时,内筒17的密封舱内的气体受压,一旦大于正压安全阀的设定值,正压安全阀打开,可以通过该泄压孔道溢出,保证气压平衡。
如图19所示,突然断水时,内筒17的密封舱内的气体受压,一旦小于正压安全阀的设定值,外部大气可以迅速进入密封舱,并破坏倒吸,保证气压平衡,避免洗涤水被吸入自来水管网。其他比如脱水时,该气压平衡机构也可以保证内筒气压平衡。
本实施例的滚筒洗衣机包括驱动电机16和内筒轴13,所述的驱动电机16通过内筒轴13与内筒17传动连接带动内筒17转动,所述的增压孔道28和/或泄压孔道30开设在内筒轴13上连通内筒17内部与外界环境,所述内筒17内的最高水位低于内筒轴13。
本实施例的滚筒洗衣机包括外筒18,所述的内筒17设置在外筒18内部,内筒17内排出的水经外筒18排出,所述内筒17的筒口安装封闭内筒的内筒门6,所述外筒18的筒口敞开,所述增压孔道28和/或泄压孔道30的一端连通内筒17内部,另一端设置在外筒18内部与其相通。
本实施例的滚筒洗衣机,包括进水管路,所述的内筒轴13内具有连通内筒17内部的中空通道14,所述的进水管路与內筒轴13的中空通道14相连通;所述的泄压孔道30与中空通道14分别与内筒17内部相通且相互隔离设置。
结合图21及图22,所述的中空通道14沿内筒轴13的中心轴线方向由一端延伸至另一端,所述泄压孔道30包括第一孔道段和第二孔道段,第一孔道段与中空通道相平 行设置,其一端连通内筒内部,第二孔道段的一端与第一孔道段相连通,另一端延伸至内筒轴的外周壁上与外筒的内部相通;
优选地,所述的第二孔道段与第一孔道段相垂直设置形成L型的泄压孔道。
本实施例的滚筒洗衣机,包括进水管路,所述的内筒轴13内具有连通内筒17内部的中空通道14,所述的进水管路与內筒轴13的中空通道14相连通;所述的增压孔道28与中空通道14相连通。
进一步地,所述的中空通道14沿内筒轴13的中心轴线方向由一端延伸至另一端,所述增压孔道28的一端与中空通道14相连通,另一端延伸至内筒轴13的外周壁上与外筒18的内部相通。优选地,所述的增压孔道28与中空通道14相互垂直设置。
本实施例所述的内筒轴连接驱动电机,驱动电机包括定子和转子,转子与内筒轴固定连接;所述转子的中心处设置通孔,所述的进水管路穿过转子的通孔与内筒轴的中空通道相连通。
优选地,所述的进水管路与转子的通孔之间设置第一动密封结构,转子的通孔与内筒轴的中空通道之间设置第二密封结构。
结合图21及图22,增压孔道28和泄压孔道30均设置在内筒轴13上,且连通大气开口均在外筒18内侧;连通内筒17的密封舱的开口均在内筒轴13的进水通道14的内侧。可以联想的是,优选的增压孔道28和泄压孔道30均设置在内筒轴13上,且连通大气开口均在外筒18内侧;连通内筒17的密封舱的开口均在密封舱内侧。
上述实施例可单独实施,也可相互组合实施。
以上所述仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,虽然本发明已以较佳实施例揭露如上,然而并非用以限定本发明,任何熟悉本专利的技术人员在不脱离本发明技术方案范围内,当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明方案的范围内。

Claims (10)

  1. 一种洗衣机,其特征在于,包括:
    内筒,洗涤衣物时独立盛放洗涤水;
    进水系统,所述进水系统与所述内筒连通;
    加热装置,加热所述内筒内的水;
    温度检测装置,设置在进水系统内检测进水温度。
  2. 根据权利要求1所述的洗衣机,其特征在于,还包括设置在进水系统内检测进水量的流量检测装置;
    优选地,所述流量检测装置为流量传感器,所述温度检测装置为温度传感器。
  3. 根据权利要求1所述的洗衣机,其特征在于,所述进水系统包括与内筒内部相连通的进水管路,所述温度检测装置和流量检测装置分别设置在进水管路内;
    优选地,所述进水系统还包括设置在进水管路上的进水阀,所温度检测装置和流量检测装置与进水阀组装一体设置。
  4. 根据权利要求1所述的洗衣机,其特征在于,还包括套设在内筒外部与内筒同轴设置的外筒和设置在外筒外部的外壳,所述加热装置设置在外筒或者外壳上;
    优选地,所述加热装置设置在外筒的内壁,所述加热装置为电磁加热装置。
  5. 一种具有上述权利要求1-4任一项所述的洗衣机的控制方法,其特征在于,当洗衣机执行进水程序时,洗衣机的控制单元根据温度检测装置检测到的结果,控制所述加热装置的工作。
  6. 根据权利要求5所述的洗衣机的控制方法,其特征在于,所述洗衣机的控制单元根据温度检测装置反馈的初始水温值,计算出内筒内的水从初始水温加热达到设定水温所述加热装置需对内筒的加热时间T,并控制加热装置加热时间T后停止工作;
    所述加热装置的加热时间T为:
    T=4.2·(t–t0)·L/3600;
    其中:T为加热时间,4.2为常数,t为设定水温,t0为初始水温,L为设定进水量。
  7. 根据权利要求6所述的洗衣机的控制方法,其特征在于,所述初始水温t0=(t1+t2+t3+t4+、、、tn)/n,其中n≥3;t1~tn为在洗衣机进水过程中,温度检测装置在不同时间检测到的不同水温值;
    优选地,所述温度检测装置在每间隔一定时间检测一次水温值。
  8. 根据权利要求5所述的洗衣机的控制方法,其特征在于,当洗衣机执行进水程序时,所述洗衣机的控制单元根据流量检测装置反馈的当前进水量,判断是否到达设定进水量,若是,则停止进水,并进行是否启动加热装置的判断;若否,则继续进水。
  9. 根据权利要求8所述的洗衣机的控制方法,其特征在于,所述洗衣机的控制单元根据用户选择是否启动加热程序,判断是否启动加热装置。
  10. 根据权利要求9所述的洗衣机的控制方法,其特征在于,当用户选择启动加热程序时,洗衣机的控制单元还需进一步判断当前温度检测装置检测到的初始水温是否达到设定水温,若是,则执行洗涤程序;若否,则启动加热装置。
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