CN112691479B - Air washing device with prompt facility - Google Patents
Air washing device with prompt facility Download PDFInfo
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- CN112691479B CN112691479B CN202010394551.6A CN202010394551A CN112691479B CN 112691479 B CN112691479 B CN 112691479B CN 202010394551 A CN202010394551 A CN 202010394551A CN 112691479 B CN112691479 B CN 112691479B
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- 238000005406 washing Methods 0.000 title claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 181
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 230000008859 change Effects 0.000 claims abstract description 11
- 206010063385 Intellectualisation Diseases 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- WPYVAWXEWQSOGY-UHFFFAOYSA-N indium antimonide Chemical compound [Sb]#[In] WPYVAWXEWQSOGY-UHFFFAOYSA-N 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004887 air purification Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 240000007182 Ochroma pyramidale Species 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 1
- 230000005690 magnetoelectric effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/022—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by using a liquid curtain
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
- G08B21/245—Reminder of hygiene compliance policies, e.g. of washing hands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/08—Means for controlling the separation process
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention belongs to the technical field of washing air, and particularly relates to a washing air device with a prompt function, which comprises a water tank, a water throwing piece and a prompt device, wherein the prompt device comprises: the first end of the floater is hinged to the inner surface of the water tank, the second end of the floater swings along with the change of the liquid level, and the second end of the floater is provided with a magnet for sending a magnetic signal; the controller is arranged outside the water tank, receives the magnetic signal and outputs a control signal; and the alarm is connected with the controller, responds to the control signal and sends out an alarm prompt. The air washing device with the prompting function can prompt a user when the washing liquid in the water tank reaches a certain height, so that the air washing device can normally operate, and the automation and the intellectualization of the air washing device are facilitated.
Description
Technical Field
The invention belongs to the technical field of air washing, and particularly relates to an air washing device with a prompt function.
Background
With the increasingly worsening of the environment, the problem of air pollution is more and more concerned by people, and therefore various air purifiers are generated. The air purifier is a product capable of adsorbing, decomposing or converting various air pollutants and effectively improving the air cleanliness.
At present, the air is purified by washing the air with water in a household. Wherein, washing air purification device includes the water tank and gets rid of the water piece, gets rid of the water piece and rotates and set up in the water tank, and is used for forming the water curtain. The side wall of the water tank is provided with an air inlet, and outside dust-containing gas enters the water tank from the air inlet and is fully contacted with the water curtain to be purified.
In the prior art, a worker can only observe whether the water level of liquid in the water tank is lower than the lowest water level line through naked eyes so as to add water into the water tank. Because the liquid level condition in the water tank can not be observed often to operating personnel, lead to in time not adding water to the water tank, cause and get rid of the idle running of water spare, influence washing air purification device's use.
Disclosure of Invention
In order to solve the problems in the prior art, namely to solve the problems that the water adding is not timely and the water throwing piece idles due to the fact that the water level of the water tank is observed by naked eyes in the existing water washing air purifying device, the invention provides a water washing air device with a prompting function, which comprises a water tank, the water throwing piece and a prompting device, wherein the prompting device comprises: the first end of the floater is hinged to the inner surface of the water tank, the second end of the floater swings along with the change of the liquid level, and the second end of the floater is provided with a magnet for sending a magnetic signal; the controller is arranged outside the water tank, receives the magnetic signal and outputs a control signal; and the alarm is connected with the controller, responds to the control signal and sends out an alarm prompt.
In an optional technical solution of the above water washing air device with prompt facility, the water throwing piece is in communication connection with the controller, and the water throwing piece responds to the control signal.
In the above-mentioned optional technical scheme of water washing air device with prompt facility, the float includes first end and second end, the first end of float rotate connect in the diapire of water tank, be equipped with spacing arch on the inner wall of water tank, spacing arch is used for the restriction the height of the second end of float.
In an alternative embodiment of the above water washing air device with the prompting function, the float includes a housing and a floating member, and the density of the floating member is lower than that of the liquid in the water tank.
In the above optional technical scheme of the air washing device with the prompt function, the floating piece is located in the shell, a groove is formed in the shell, and the floating piece is exposed through the groove.
In the above optional technical solution of the air washing device with a prompt function, the housing is provided with a mounting cavity, the magnet is located in the mounting cavity, and the mounting cavity is used for separating the magnet from the floating member.
In an alternative embodiment of the above-described air washing device with a prompt function, the float is detachably connected to the water tank.
In the above-mentioned optional technical scheme of washing air device with prompt facility, be connected with fixed arch on the diapire of water tank, the mounting hole has been seted up on the fixed arch, the both sides of float are equipped with the installation arch, the installation arch embedded and rotate connect in the mounting hole.
In an optional technical solution of the above water washing air device with a prompt function, an elastic rod is connected between the housing and the mounting protrusion, and the elastic rod has an elastic change along an axial direction of the mounting hole.
In an optional technical scheme of the above water washing air device with the prompt function, the floating piece comprises waterproof sponge.
The water washing air device with the prompting function comprises a prompting device, wherein the prompting device comprises a floater, a controller and an alarm, the second end of the floater can swing along with the change of the liquid level to generate displacement along the axial direction of the water tank, a magnet is arranged at the second end of the floater, and when the magnet moves to a range that the controller can receive a magnetic signal, the controller sends a control signal to enable the alarm to be turned on or turned off. In addition, the scale value of the water level line of the alarm can be changed by changing the position of the controller so as to adapt to different water tanks.
Through the setting, can when the washing liquid in the water tank reachs the take the altitude, indicate the user for washing air device can normal operating, do benefit to washing air device's automation and intellectuality.
In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.
Drawings
FIG. 1 is a perspective view of a conventional washing apparatus;
FIG. 2 is a schematic perspective view of a portion of a water wash air device in accordance with an exemplary embodiment;
FIG. 3 is a partial schematic view of a water wash air device according to an exemplary embodiment to illustrate the connection between the float and the tank;
FIG. 4 is a schematic perspective view of a float of a water wash air device provided in accordance with an exemplary embodiment;
FIG. 5 is a perspective cross-sectional view of a float of a water wash air device in accordance with an exemplary embodiment illustrating the position of a magnet within a housing;
FIG. 6 is a schematic illustration of a control system for a water wash air device in accordance with an exemplary embodiment;
FIG. 7 is a circuit diagram of a water wash air device provided in accordance with an exemplary embodiment;
FIG. 8 is a partial perspective cross-sectional view of a water wash air device in accordance with an exemplary embodiment illustrating the positional relationship of a controller;
FIG. 9 is a controller and mount for a water wash air device provided in accordance with an exemplary embodiment.
In the drawings:
1. a water tank; 11. a limiting bulge; 12. a fixed protrusion;
2. a water throwing part;
3. a float; 31. a housing; 311. mounting a boss; 312. an elastic rod; 32. a float member; 33. a mounting cavity;
4. a controller; 41. a detection circuit; 42. a comparison circuit; 43. a control circuit;
5. an alarm;
6. a mounting seat; 61. an elastic bulge;
7. a magnet;
101. a water tank; 102. an air inlet duct; 103. an air outlet duct.
Detailed Description
First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the reminder function of the present invention is described in connection with washing air, this is not intended to be limiting and other devices requiring a water shortage reminder may be configured with the reminder device of the present invention.
Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the direction or positional relationship shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 shows a water-washing air device invented by the applicant, as shown in fig. 1, including an air inlet channel 102, a water tank 101, a water-throwing member, a fan disposed above the water tank 101, and an air outlet channel 103. The water throwing piece is rotatably arranged in the water tank 101, and a plurality of water throwing holes are formed in the side wall of the water throwing piece; the washing liquid (generally water) in the water tank 1 can enter the water throwing piece, and after the water throwing piece rotates, the washing liquid in the water throwing piece is thrown out from the water throwing holes to form a water curtain.
It should be noted that, the process of purifying air by using the water washing air device is as follows: dusty gas outside the water tank 1 enters the water tank 101 from the air inlet duct under the driving of the fan, and is contacted with a water curtain formed in the water tank 1. The dust particles in the dust-containing gas are separated from the gas and settled after contacting with the washing liquid, and the dust-containing gas is purified to become clean gas and is discharged to the outside from the air outlet duct.
In the above process, the clean gas also takes away a part of the liquid in the water tank 1, so that the washing liquid in the water tank 101 descends. When the washing liquid in the water tank 101 drops to a certain height, water is not provided for the interior of the water throwing member, the water throwing member is in an idle state, and the washing effect of the air washing device cannot be realized.
In summary, it is an effect of the present invention to provide a prompt when the water in the water tank reaches the lowest water level of the water tank 1. Therefore, a sensor is required to detect the water level. The existing liquid level detection sensor generally adopts a water immersion contact method. Here, "contact" in the water intrusion contact method means that a sensing element or sensor is in contact with the inner space of the water tank 1. Which utilizes the principle of liquid conduction for detection. When the two-pole probe of the contact type water sensor is insulated by air, the contact type water sensor outputs low voltage; when the two-pole probe of the contact type water sensor is contacted with water, the probe is in a conducting state and outputs high level. The disadvantage of the water immersion contact method is that the two-pole probe fails due to scaling or corrosion in the liquid, so the service life of the two-pole probe is short.
It will be appreciated that separating the sensor from the liquid may effectively increase the useful life of the sensor. The sensor can be arranged outside the water tank, and a suspended matter is arranged in the water tank, so that the suspended matter can float on the upper surface of the washing liquid under the condition of no external force. The sensor can estimate the height of the liquid level by sensing the position of the suspended matter.
In addition, the magnetic sensor is a sensor that uses the relationship between magnetism and electricity, including the principles of the magnetic resistance effect, the magnetoelectric effect, the hall effect, and the like. The magnetoresistance effect is a principle that when a magnetic field passes perpendicularly through a semiconductor through which a current flows in the longitudinal direction, the resistivity of the semiconductor changes in the current direction. The magneto-resistive effect can be used to fabricate magneto-resistive sensors. Therefore, the magnetic-sensing sensor can be adopted and can be connected with the alarm, the magnet can be arranged on the suspended matter, the sensor outside the water tank can know the position of the magnet by sensing the intensity of the magnetic field, and further the position of the liquid level can be obtained, and the invention is the conception of the invention.
The technical solution of the air washing device with prompting function of the present invention is described below with reference to the above contents.
Fig. 2 is a partial perspective view of a water washing air device according to an exemplary embodiment, and as shown in fig. 2, the water washing air device with a prompt function includes a water tank 1, a water slinger 2 rotatably disposed in the water tank 1, and a prompt device. Wherein, the prompting device can prompt the user when the liquid level of the cleaning solution in the water tank 1 is higher than or lower than the preset water level line.
It should be noted that, the water tank 1 of the water washing air device is provided with a lowest water level line and a highest water level line, and the prompting device can prompt when the washing liquid is located at the lowest water level line and can also prompt when the washing liquid is located at the highest water level line. In the following, the example that the prompting device prompts that the cleaning solution is close to or at the lowest water level is described, and the situation that the cleaning solution is close to or at the highest water level is obtained by simple derivation by those skilled in the art, and thus, the description is omitted here.
Fig. 2 is a partial perspective view of a water washing air device provided according to an exemplary embodiment, and fig. 3 is a partial schematic view of a water washing air device provided according to an exemplary embodiment to show a connection relationship between a float 3 and a water tank 1, as shown in fig. 2 and 3, the prompting device includes: the float 3 is provided with a first end and a second end, the first end of the float 3 is hinged to the inner surface of the water tank 1, the second end of the float 3 swings along with the change of the liquid level, and the second end of the float 3 is provided with a magnet 7 for sending a magnetic signal.
In particular, the float 3 is located inside the tank 1, and the density of the float 3 may be less than the density of the washing liquid in the tank 1, i.e. the float 3 may float on the water surface without constraining forces. When the second end of the float 3 is provided with the magnet 7, the float 3 and the magnet 7 can float together on the water surface.
In order to provide a warning by the warning device when the detergent in the tank 1 is near or at the lowest water level, the first end of the float 3 may be hinged to the bottom wall of the tank 1 and the second end of the float 3 may be free. Wherein the axis of rotation of the first end of the float 3 is not specifically required, but it is sufficient that the second end of the float 3 can have a change of displacement in the direction of the axis of the tank 1, so that the magnet 7 on the second end of the float 3 has a change of displacement in this direction when the liquid level changes, in order to enter or leave the sensing range of the controller 4 mentioned below. For example, the axis of rotation of the float 3 may be perpendicular to the axis of the tank 1 and the second end of the float 3 may move in a circular motion or oscillate.
It will be appreciated that the level of the washing liquid in the tank 1 decreases as the time of use increases. When the water level is lowered to a level where at least a part of the first end of the float 3 is exposed to the water surface, the float 3 can be in a horizontal state, and the state can be maintained until the bottom surface of the first end of the float 3 is completely located to float on the water surface. When the water level continues to drop, the second end of the float 3 keeps floating on the water surface, so that the float 3 rotates and the magnet 7 on the second end of the float 3 moves down. Wherein the controller 4 issues a control signal when the magnet 7 moves down to the sensing area of the controller 4 as described below. Thus, the low water level can be prompted by presetting the water level line to set the height of the first end of the floater 3 from the bottom surface of the water tank 1 and the height of the sensing area of the controller 4.
Fig. 6 is a schematic diagram of a control system of a water washing air device according to an exemplary embodiment, as shown in fig. 6, a controller 4 is disposed outside the water tank 1, and receives a magnetic signal and outputs a control signal; and the alarm 5 is connected to the controller 4, responds to the control signal and sends out an alarm prompt. When the water level of the washing liquid in the water tank 1 is lower than or reaches a preset water level, the controller 4 controls the alarm 5 to be started.
The water washing air device with the prompting function comprises a prompting device, wherein the prompting device comprises a floater 3, a controller 4 and an alarm 5, the second end of the floater 3 can swing along with the change of the liquid level to generate displacement along the axial direction of the water tank 1, a magnet 7 is arranged at the second end of the floater 3, and when the magnet 7 moves to the range where the controller 4 can receive a magnetic signal, the controller 4 sends out a control signal to enable the alarm 5 to be turned on or turned off. In addition, the scale value of the water level line which issues the alarm 5 can be changed by changing the position of the control 4 in order to adapt to different water tanks 1.
Through the setting, can reach the take the altitude when the washing liquid in the water tank 1 for the user is indicateed, makes washing air device can normal operating, does benefit to washing air device's automation and intellectuality.
Fig. 7 is a circuit diagram of a water washing air device according to an exemplary embodiment, and as shown in fig. 7, the controller 4 may include a detection circuit 41, a comparison circuit 42, and a first control circuit 43. Wherein, the detection circuit 41 is used for detecting the magnetic field intensity, namely receiving the magnetic signal of the magnet 7 and outputting a detection signal; the comparison circuit 42 is used for comparing the detection signal with the magnetic reference value signal and outputting a comparison signal; the first control circuit 43 is connected to the alarm 5 and is configured to receive the comparison signal to output a control signal and control the on/off of the alarm 5.
If the detection signal is greater than the magnetic reference value signal, outputting a high-level control signal, and starting an alarm 5; if the detection signal is smaller than the magnetic reference value signal, a low-level control signal is output, and the alarm 5 is turned off.
The detection circuit 41 includes a first resistor R1 and a magneto resistor R2 connected in series in the power supply loop, the other end of the first resistor R1 is connected to the VCC voltage, the other end of the magneto resistor R2 is grounded, and a connection node between the first resistor R1 and the magneto resistor R2 outputs a detection signal to the comparison circuit 42. Alternatively, the first resistor R1 may be a sliding rheostat, and the sensitivity of the alarm may be adjusted by adjusting the first resistor R1.
The magneto-resistance R2 is a resistance element sensitive to magnetism and having a magneto-resistance effect. The phenomenon of a substance changing its resistance in a magnetic field is called the magnetoresistance effect. The magnetoresistor R2 is generally made of a semiconductor material having sensitivity to magnetism, such as indium antimonide (InSb) or indium arsenide (InAs). The magnetoresistance effect of semiconductor materials includes the physical magnetoresistance effect, which is also referred to as the magneto-resistivity effect, and the geometric magnetoresistance effect.
When the direction or the strength of the applied magnetic field changes, the resistance value of the magnetic resistor R2 changes correspondingly, and the relative displacement of the magnetic field can be accurately tested by using the change. The resistance of the magnetic resistor R2 increases with the increase of the space magnetic field and decreases with the decrease of the space magnetic field. For example, when a current flows through a rectangular semiconductor InSb sheet in the longitudinal direction, if a magnetic field is applied in the direction perpendicular to the width direction of the current sheet, the resistivity of the semiconductor InSb sheet increases in the longitudinal direction.
As shown in fig. 7, the comparison circuit 42 may include:
the base electrode of the triode Q1 is connected to the connection point of the first resistor R1 and the magnetic sensing resistor R2 so as to receive a detection signal, and the emitting electrode of the triode Q1 is grounded;
the third resistor R3 is connected with the collector of the triode Q1 and then is connected with VCC voltage;
a triode Q2, PNP type, wherein the base of the triode Q2 is connected with the connection point of the third resistor R3 and the collector of the triode Q1, and the collector of the triode Q2 is connected with VCC voltage;
the fourth resistor R4 is connected to the emitter of the triode Q2 and then grounded; the connection node between the emitter of the transistor Q2 and the fourth resistor R4 outputs the comparison signal to the first control circuit 43.
As shown in fig. 7, the first control circuit 43 may include:
a transistor Q3, NPN type, a base of the transistor Q3 is connected to a connection node between an emitter of the transistor Q2 and the fourth resistor R4 to receive the comparison signal, a collector of the transistor Q3 is connected to VCC voltage, and an emitter of the transistor Q3 outputs a control signal to the alarm 5.
Optionally, the first control circuit 43 further comprises a fifth resistor R5 connected to the base of the transistor Q3, and a sixth resistor R6 connected between the VCC voltage and the collector of the transistor Q3.
Alternatively, alarm 5 may include a buzzer and/or a light emitting diode, one end of which may be connected to ground after the emitter of transistor Q3.
The specific operation of the controller 4 is as follows:
the first state: the resistance value of the magnetic resistor R2 is increased along with the increase of the magnetic field intensity, the voltage division condition of the magnetic resistor R2 is increased in the voltage division process of the resistor R1 and the magnetic resistor R2, the base of the NPN type triode Q1 is changed into high level, the triode Q1 is conducted, the base of the triode Q2 is directly grounded through the triode Q1 to obtain low level, the triode Q2 is conducted, the output end of a comparison signal is connected with VCC voltage through the triode Q2, the comparison signal outputs a high level signal to the base of the triode Q3, the triode Q3 is conducted, and the alarm 5 is connected with the VCC voltage to be turned on.
And a second state: the resistance value of the magnetic resistor R2 is reduced along with the reduction of the magnetic field intensity, so that the voltage division condition of the magnetic resistor R2 is reduced in the voltage division process of the resistor R1 and the magnetic resistor R2, the base of the NPN type triode Q1 becomes low level, the conduction condition cannot be met, namely the triode Q1 is turned off, the base of the PNP triode Q2 is directly connected with a power supply through the resistor R3 to obtain high level, the conduction condition of the PNP triode Q2 is that the low level is conducted, the triode Q2 is also turned off, the output end of the V2 is grounded through the resistor R4, the comparison signal is further enabled to output a low level signal to the base of the triode Q3, the triode Q3 is turned off, and the alarm 5 is turned off by being disconnected with VCC voltage.
It should be noted that the control circuit 43 of the controller 4 may have other forms, which are only exemplified above.
As shown in fig. 6, the water slinger 2 is in communication with the controller 4, the water slinger 2 being responsive to a control signal. Specifically, the water throwing piece 2 can be connected with an output shaft of the motor and can rotate along with the rotation of the output shaft of the motor. When the water level of the washing liquid in the water tank 1 is lower than or reaches a preset water level, the controller 4 controls the water throwing piece 2 to be closed.
Optionally, the controller 4 may further include a second control circuit 43, and the second control circuit 43 includes:
a not gate, the input end of which is connected to the connection node between the emitter of the transistor Q2 and the fourth resistor R4 to receive the comparison signal;
the base electrode of the triode Q4, NPN type, triode Q4 is connected with the output end of the NOT gate, the collector electrode of the triode Q4 is connected with VCC voltage, and the emitter electrode of the triode Q3 outputs a control signal to the control circuit 43 of the motor of the water slinging part 2.
Optionally, the first control circuit 43 may further include a seventh resistor R7 between the not gate and the base of the transistor Q4, and an eighth resistor R8 between the VCC voltage and the collector of the transistor Q4.
It can be understood that the resistance value of the magnetic resistor R2 increases with the increase of the magnetic field strength, the comparison signal outputs a high level signal to the not gate, the not gate outputs a low level signal to the base of the transistor Q4, the transistor Q4 is turned off, and the control circuit 43 of the motor is disconnected from the VCC voltage.
Optionally, the controller 4 may control the start and stop of the fan of the water washing air device while controlling the start of the motor of the water slinger 2. I.e. when the level of the washing liquid in the tank 1 approaches or reaches a preset level, the controller 4 controls the water slinger 2 to close and at the same time controls the aircraft to close. The circuit setting that controller 4 controlled the start and stop of fan can refer to controller 4 control and get rid of water piece 2, and the repeated description is not repeated here.
In an alternative embodiment, as shown in fig. 2 and 3, a limit protrusion 11 is provided on an inner wall of the water tank 1, and the limit protrusion 11 is used to limit the height of the second end of the float 3. When the upper surface of the second end of the floater 3 is abutted with the lower surface of the limiting protrusion 11, the second end of the floater 3 is limited and does not move upwards any more, so that the stroke of the second end of the floater 3 in the axial direction of the water tank 1 can be reduced, the floater 3 is protected, and the service life of the floater 3 is prolonged.
Alternatively, as shown in fig. 3, the limit protrusion 11 includes a limit plate connected to the inner wall of the water tank 1, and a connection plate connected to a side wall of the limit plate and the inner wall of the water tank 1. Both ends of the limiting plate may be connected with connecting plates so as to improve the connection strength between the limiting plate and the inner wall of the water tank 1 and improve the structural strength of the limiting protrusions 11.
The float 3 may itself be a structure of a certain strength, such as balsa wood material, lighter than the washing liquid in the tank 1. The float 3 may also comprise a housing 31 and a float member 32, the float member 32 having a density lower than the density of the liquid in the tank 1, the housing 31 may have a density greater than the density of the washing liquid, but the float member 32 and the housing 31 connected together may have a density less than the density of the washing liquid, the housing 31 may provide mounting and positioning for the float member 32. The floating member 32 includes, but is not limited to, a waterproof sponge, an air bag, etc.
Alternatively, the float 32 may be located above, below, to the left or to the right of the housing 31, and the float 32 may also be located within the housing 31.
Exemplarily, fig. 4 is a perspective view of a float 3 of a water washing air device according to an exemplary embodiment, as shown in fig. 4, a floating member 32 is located in a housing 31, and the housing 31 is used to wrap the floating member 32, so as to maintain the shape of the floating member 32 and facilitate the installation of the float 3. Optionally, the housing 31 is provided with a groove, through which the floating member 32 is exposed. The housing 31 is grooved to reduce the weight of the housing 31 and to increase the buoyancy of the float 3.
Optionally, when the floating member 32 is located in the housing 31, the floating member 32 may be made of an elastic material, so that the floating member 32 and the housing 31 can be installed in an interference fit manner when the floating member 32 and the housing 31 are installed.
In an alternative embodiment, shown in figure 4, the housing 31 is provided with a mounting cavity 33, the magnet 7 being located within the mounting cavity 33, the mounting cavity 33 serving to space the magnet from the float 32. The float member 32 may obstruct the magnetic field strength of the magnet 7, so that the magnet 7 and the float member 32 are separated by the mounting cavity 33 in order to reduce the loss of the magnetic field strength of the magnet 7.
Alternatively, fig. 5 is a perspective cross-sectional view of the float 3 of a water washing air device according to an exemplary embodiment, for illustrating the position of the magnet 7 in the housing 31, as shown in fig. 5, the mounting cavity 33 may be elastically arranged, and the magnet 7 may be interference-fitted to the mounting cavity 33. The installation can be connected with the stopper by force, and the stopper can be used to restrict the upper surface and the lateral wall of magnet 7, and another side accessible of magnet 7 is fixed with placing of installation cavity 33 interference fit.
In an alternative embodiment, the float 3 is detachably connected to the tank 1 for servicing and replacement of the float 3.
Optionally, as shown in fig. 3 and 4, a fixing protrusion 12 is connected to the bottom wall of the water tank 1, a mounting hole is opened on the fixing protrusion 12, mounting protrusions 311 are arranged on two sides of the float 3, and the mounting protrusions 311 are embedded in and rotatably connected to the mounting hole.
Alternatively, as shown in fig. 3 and 4, an elastic rod 312 is connected between the housing 31 and the mounting boss 311, and the elastic rod 312 has an elastic variation in the axial direction of the mounting hole. When the float 3 is to be removed from the fixing projection 12, the elastic rod 312 may be pressed toward the float 3, so that the elastic rod 312 makes a movement away from the mounting hole of the fixing projection 12 until the mounting projections 311 are all disengaged from the mounting hole.
On the basis of the above-mentioned embodiments, as shown in fig. 2 and 8, the water tank 1 according to the present invention has a curved surface section, so that when manufacturing the water tank 1, the water tank 1 at the position where the controller 4 is installed needs to be made into a flat surface so as to install the controller 4, and the controller 4 can receive the magnetic signal emitted by the magnet 7 to a greater extent.
In addition, fig. 8 is a partial perspective view of a water washing air device according to an exemplary embodiment, for illustrating a positional relationship of the controller 4; fig. 9 illustrates a controller and a mounting seat of a water washing air device according to an exemplary embodiment, as shown in fig. 8 and 9, in order to facilitate the repair and replacement of the controller 4, the mounting seat 6 may be disposed at an outer side of the water tank 1, and the mounting seat 6 may be provided with a first elastic protrusion 61 and a second elastic protrusion 61. The height of the controller 4 is defined between the first elastic protrusion 61 and the bottom surface of the mount, and the width of the controller 4 is defined between the second elastic protrusion 61 and the side surface of the mount. Because first elastic bulge 61 and second elastic bulge 61 are the elasticity setting, so link together through interference fit's mode between controller 4 and the mount pad, convenient to detach and installation.
Alternatively, one end of the first elastic protrusion 61 and/or one end of the second elastic protrusion 61 may be connected to a side wall of the base, the other end of the second elastic protrusion 61 may abut against one side of the controller 4, and the cross section of the second elastic protrusion 61 may be arc-shaped and have a deformation along the width direction of the controller 4, so as to facilitate taking and placing of the controller 4.
So far, the technical solutions of the present invention have been described in conjunction with the alternative embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. The utility model provides a washing air device with prompt facility, includes the water tank, gets rid of the water piece, its characterized in that still includes prompt device, prompt device includes:
the first end of the floater is hinged to the inner surface of the water tank, the second end of the floater swings along with the change of the liquid level, and the second end of the floater is provided with a magnet for sending a magnetic signal;
the controller is arranged outside the water tank, receives the magnetic signal and outputs a control signal;
the alarm is connected with the controller, responds to the control signal and sends out an alarm prompt;
and a limiting bulge is arranged on the inner wall of the water tank and used for limiting the height of the second end of the floater.
2. A cue-enabled water wash air device as claimed in claim 1 wherein the water slinger is communicatively connected to the controller, the water slinger being responsive to the control signal.
3. The cue-enabled water wash air device of claim 1 wherein the float comprises a housing and a float, the float having a density lower than a density of the liquid in the tank.
4. The air washing device with the prompt function as claimed in claim 3, wherein the floating member is located in the housing, a groove is formed in the housing, and the floating member is exposed through the groove.
5. A water washing air device with an alerting function as claimed in claim 3 wherein the housing is provided with a mounting cavity in which the magnet is located, the mounting cavity being adapted to space the magnet from the float.
6. The cue-enabled water wash air device of claim 1 wherein the float is removably attached to the tank.
7. The air washing device with the prompt function as recited in claim 5, wherein a fixing protrusion is connected to the bottom wall of the water tank, the fixing protrusion is provided with a mounting hole, mounting protrusions are arranged on two sides of the float, and the mounting protrusions are embedded in the mounting hole and rotatably connected to the mounting hole.
8. The air washing device with the prompt function as claimed in claim 7, wherein an elastic rod is connected between the housing and the mounting protrusion, and the elastic rod has an elastic change along the axial direction of the mounting hole.
9. The apparatus according to claim 3, wherein the float comprises a waterproof sponge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010394551.6A CN112691479B (en) | 2020-05-11 | 2020-05-11 | Air washing device with prompt facility |
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| CN202010394551.6A CN112691479B (en) | 2020-05-11 | 2020-05-11 | Air washing device with prompt facility |
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| CN112691479A CN112691479A (en) | 2021-04-23 |
| CN112691479B true CN112691479B (en) | 2022-06-24 |
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| US4804944A (en) * | 1987-09-01 | 1989-02-14 | Golladay James D | Hall effect liquid level sensing apparatus and method |
| FR2860589B1 (en) * | 2003-10-06 | 2006-02-17 | Sauermann Ind | DEVICE FOR DETECTING LIQUID LEVELS |
| US7726180B2 (en) * | 2005-03-28 | 2010-06-01 | Kurume University | Float and liquid container using the float, method for preventing malfunction of probe in automatic analyzer, and examination method using automatic analyzer |
| DE202007012990U1 (en) * | 2007-09-17 | 2009-02-12 | Carcoustics Techconsult Gmbh | Air purification device for vehicles |
| DE202008013599U1 (en) * | 2008-10-14 | 2009-02-05 | Luxoplast Kunststofftechnik Gmbh | level indicator |
| CN202472437U (en) * | 2012-03-13 | 2012-10-03 | 宁波先锋电器制造有限公司 | Water level control device and cooling fan installed with same |
| CN102768057A (en) * | 2012-07-06 | 2012-11-07 | 广东美的制冷设备有限公司 | Water level switch and water level signal detecting device |
| CN203231795U (en) * | 2013-05-28 | 2013-10-09 | 重庆长安伟世通发动机控制系统有限公司 | Non-contact fuel level sensor |
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| KR20170095686A (en) * | 2016-02-15 | 2017-08-23 | 동부대우전자 주식회사 | Washing machine and apparatus for injection liquid additive in the washing machine |
| CN107782415B (en) * | 2016-08-30 | 2020-11-10 | 株式会社村田制作所 | Liquid level detection device |
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| CN208030935U (en) * | 2017-11-06 | 2018-11-02 | 九阳股份有限公司 | Cooking apparatus with water tank |
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