CN110747606A - Liquid level detection device of detergent box and washing machine - Google Patents
Liquid level detection device of detergent box and washing machine Download PDFInfo
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- CN110747606A CN110747606A CN201910783989.0A CN201910783989A CN110747606A CN 110747606 A CN110747606 A CN 110747606A CN 201910783989 A CN201910783989 A CN 201910783989A CN 110747606 A CN110747606 A CN 110747606A
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- detergent box
- detergent
- liquid
- liquid level
- level detection
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- 239000003599 detergent Substances 0.000 title claims abstract description 174
- 239000007788 liquid Substances 0.000 title claims abstract description 162
- 238000005406 washing Methods 0.000 title claims abstract description 48
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 23
- 239000000523 sample Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/0046—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm with a stationary probe, where a liquid specimen is separated from the mean mass and measured
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
A detergent liquid level detection device and a washing machine with the same comprise: the liquid guiding column is located on the outer side of the detergent box and is provided with an accommodating cavity communicated with the detergent box, so that when the detergent box is provided with detergent of which the quantity is larger than or equal to a first preset quantity, at least part of the detergent can flow into the accommodating cavity, the liquid level of the detergent in the accommodating cavity can be detected through the liquid level sensor, and the quantity of the detergent in the detergent box can be judged. Through the arrangement, the designed liquid guide column occupies a small space, and the liquid level sensor arranged on the liquid guide column can accurately detect whether the detergent liquid is used up in real time, so that the measurement is accurate.
Description
Technical Field
The invention relates to a liquid level detection device of a detergent box, in particular to a liquid level detection device of a detergent box for a washing machine.
Background
The washing machine is a common household appliance, and washing liquid or softening liquid in a detergent liquid storage chamber of a traditional middle-low end washing machine is generally put once and used once. The above-mentioned method is inconvenient to operate, and most of the space of the detergent box is not fully utilized because the detergent box is in a non-full state.
The existing high-end washing machine pre-stores detergent in a detergent box, and when the washing machine is used, the detergent is sucked by a liquid suction pump to realize automatic feeding of washing liquid. Through the mode, the detergent can be used for multiple times in the detergent box. When the detergent is used up, the detergent needs to be replenished, and the existing high-end washing machine detects whether the detergent is used up or not by using a liquid level sensor. However, the conventional sensors are all disposed in the detergent box, and have the following problems: 1) the existing sensors are all arranged in a detergent box and need to occupy the space of the detergent box; 2) since the detergent box needs to be moved between the pulled-out and retracted positions to effect the dispensing of the detergent. The existing sensor adopts an installation mode of directly measuring the detergent in the detergent box, the movement of the detergent box is not influenced when the sensor is installed, and the sensor is limited by the installation mode, so that the existing sensor cannot accurately detect whether the detergent is used up or not.
Disclosure of Invention
In view of the above, the present invention provides a liquid level detection device, which has a small space occupied by a liquid level sensor fixing member (liquid guiding column), and a liquid level sensor mounted on the liquid guiding column can accurately detect whether detergent liquid is used up in real time. Specifically, the method comprises the following steps:
a detergent level detecting device comprising: the liquid guiding column is located on the outer side of the detergent box and is provided with an accommodating cavity communicated with the detergent box, so that when the detergent box is provided with detergent of which the quantity is larger than or equal to a first preset quantity, at least part of the detergent can flow into the accommodating cavity, the liquid level of the detergent in the accommodating cavity can be detected through the detector, and the quantity of the detergent in the detergent box can be judged.
Preferably, the horizontal position of the bottom of the receiving cavity is lower than the horizontal position of the bottom of the detergent box.
Preferably, the liquid guiding column is substantially L-shaped, and a horizontal portion of the L-shape is communicated with the detergent box.
Preferably, the detector is a liquid level sensor, and a probe (12) of the sensor is inserted into the accommodating cavity at a position close to the bottom to detect the liquid level.
Preferably, the other components of the detector are located outside the receiving cavity.
Preferably, the washing machine further comprises a housing for mounting the detergent box, the detergent box can be pulled out and retracted relative to the housing, the accommodating cavity is communicated with the detergent box through a corrugated pipe, and the accommodating cavity and the detergent box are always connected in the pulled out and retracted states of the detergent box through the scalability of the corrugated pipe.
Preferably, the detergent box further comprises a housing for mounting the detergent box, the detergent box being withdrawable and retractable with respect to the housing, the accommodating chamber being in communication with the detergent box through a first valve structure, the first valve structure being closed when the detergent box is withdrawn from the housing, thereby disconnecting the accommodating chamber from the detergent box, and being opened when the detergent box is withdrawn into the housing, thereby communicating the accommodating chamber with the detergent box.
Preferably, the first valve structure comprises: the valve rod, the valve cover, the elastic piece and the valve seat are arranged between the containing cavity and the detergent box, and the valve seat is arranged in the sleeve; the valve seat is provided with a liquid suction port, one end of the valve rod is slidably mounted in the valve seat, the valve rod is further provided with a first sealing device, and the valve cover is provided with a valve cover hole. The other end of the valve rod is slidably arranged in the valve cover hole;
the elastic piece is sleeved on the valve rod and used for providing elastic force for the valve rod, so that when the detergent box is pulled out of the shell, the liquid suction port moves outwards along with the detergent box, and the elastic piece applies pressing force to the first sealing device to seal the liquid suction port;
when the detergent box is retracted into the shell, the liquid suction port moves inwards along with the detergent box and further is far away from the first sealing device, and the liquid suction port is communicated.
Preferably, a liquid suction pump is further included for drawing the washing liquid through the accommodating chamber.
Preferably, the number of the liquid guiding columns is two, the detergent box is divided into two parts, the first part contains detergent, the second part contains softener, and one of the two liquid guiding columns is communicated with the first part, and the other is communicated with the second part.
In addition, the invention also provides a washing machine which is provided with any liquid level detection device.
A liquid level detection method of a liquid level detection device according to the present invention includes the steps of: s1 detecting the liquid level of the containing cavity;
s2 judging the detergent amount in the detergent box according to the detected liquid level.
The invention has the following technical effects: 1) the utilization space of the outer cover of the detergent box is increased; 2) the change of the liquid level is detected more accurately; 3) the intellectualization is improved, and the user experience effect is enhanced. The sensor installation layout can make external terminal circuit layout more reasonable. By adopting the liquid level detection device, the space utilization of the detergent box is increased, the liquid level sensor can accurately detect the real-time liquid level, the external terminal circuit layout of the liquid level sensor is more reasonable, the sealing performance of the liquid level sensor and the liquid guide column is enhanced, and the experience effect of users is better.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic view of a liquid level detection apparatus of the present invention.
FIG. 2 is a schematic view of another perspective of the liquid level detection apparatus of the present invention.
Fig. 3 is a perspective view illustrating the liquid level detecting device of the present invention mounted in a detergent box.
Fig. 4 is a front view of the liquid level detecting device of the present invention installed in a detergent box.
Fig. 5 is another perspective view illustrating the liquid level detecting device of the present invention installed in a detergent box.
Fig. 6 is a partial sectional view schematically showing the liquid level detecting device of the present invention installed in a detergent box.
Fig. 7 is a partially cut-away perspective view illustrating the liquid level detecting device of the present invention mounted in a detergent box.
FIG. 8 is a schematic view of a valve stem of the present invention.
FIG. 9 is a schematic view showing the liquid level detecting device of the present invention installed in cooperation with a washing machine housing.
FIG. 10 is a schematic view of another perspective view of the liquid level detection unit of the present invention installed in cooperation with a washing machine housing.
FIG. 11 is a front view of a washing machine having a liquid level detecting device according to the present invention.
FIG. 12 is a perspective view of a washing machine having a liquid level detecting apparatus according to the present invention.
Wherein: 1-handle, 2-display panel, 3-door body, 4-front panel, 5-U shell, 6-detergent box, 7-runner plate, 8-handle, 9-liquid suction pump, 10-water discharging box, 11-distributor box, 12-probe, 13-liquid guide column, 14-sleeve, 15-valve cover, 16-elastic piece, 17-first sealing ring, 18-valve rod, 19-corrugated pipe, 20-second sealing ring, 21-third sealing ring, 22-valve seat and 23-accommodating cavity.
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one element from another. Thus, a first component discussed below may be termed a second component without departing from the teachings of the disclosed concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is to be understood by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or processes shown in the drawings are not necessarily required to practice the present disclosure and are, therefore, not intended to limit the scope of the present disclosure.
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings of fig. 1-12:
a detergent level detecting device comprising: the detergent box comprises at least one liquid guide column 13 and at least one detector, wherein the liquid guide column 13 is positioned on the outer side of the detergent box 6, the liquid guide column 13 is provided with an accommodating cavity 23 communicated with the detergent box 6, so that when the detergent box 6 has more than or equal to a first preset amount of detergent, at least part of the detergent can flow into the accommodating cavity 23, the liquid level of the detergent in the accommodating cavity 23 can be detected through the detector, and the amount of the detergent in the detergent box 6 can be judged.
Wherein the first preset amount means that, since the detergent box 6 is in a communication state with the accommodating chamber 23, according to the principle of a communicator, when the liquid level of the detergent box 6 is higher than the liquid level of the accommodating chamber 23, the detergent automatically flows into the accommodating chamber 23. The horizontal position of the accommodating cavity 23 relative to the detergent box 6 can be arranged oppositely, and when the horizontal position of the accommodating cavity 23 is lower than the horizontal position of the bottom of the detergent box 6, all the detergent can flow into the accommodating cavity 23, which is a preferable scheme. The first predetermined amount at this time is 0. Alternatively, only a portion of the detergent may flow into the receiving chamber 23, and the remaining detergent may be smaller, and it may be determined that further detergent addition is required, and the first predetermined amount may be a value set as needed.
Preferably, the horizontal position of the bottom of the receiving cavity 23 is lower than the horizontal position of the bottom of the detergent box 6.
Preferably, the drain post 13 is substantially L-shaped, and a horizontal portion of the L-shape communicates with the detergent box 6.
Preferably, the detector is a liquid level sensor, and the probe 12 of the detector is inserted into the bottom of the containing cavity 23 to detect the liquid level.
Preferably, the other components of the detector are located outside the housing chamber 23.
Preferably, a housing is further included, the detergent box 6 is withdrawable and retractable with respect to the housing, the accommodating chamber 23 is communicated with the detergent box 6 through the bellows 19, and the accommodating chamber 23 is always connected with the detergent box 6 in the withdrawn and retracted state of the detergent box 6 by the flexibility of the bellows 19.
Preferably, the accommodating chamber 23 communicates with the detergent box 6 through a first valve structure, which is closed when the detergent box 6 is pulled out of the housing, thereby disconnecting the accommodating chamber 23 from the detergent box 6, and which is opened when the detergent box 6 is retracted into the housing, thereby communicating the accommodating chamber 23 with the detergent box 6.
Preferably, the first valve structure comprises: a sleeve 14 is arranged between the valve rod 18, the valve cover 15, the elastic element 16, the valve seat 22, the accommodating cavity 23 and the detergent box 6, and the valve seat 22 is arranged in the sleeve 14; the valve seat 22 is provided with a liquid suction port, one end of the valve rod 18 is slidably installed in the valve seat 22, the valve rod 18 is further provided with a first sealing device, and the valve cover 15 is provided with a valve cover hole. The other end of the valve rod 18 is slidably mounted in the bonnet hole;
the elastic piece 16 is sleeved on the valve rod 18, the elastic piece 16 is used for providing elastic force for the valve rod 18, so that when the detergent box 6 is pulled out of the shell, the liquid suction port moves outwards along with the detergent box 6, and the elastic piece 16 applies pressing force to the first sealing device to realize the sealing of the liquid suction port;
when the detergent box 6 is retracted into the housing, the fluid suction port moves inward along with the detergent box 6, and further away from the first sealing device, so that the fluid suction port is communicated.
Preferably, a liquid suction pump 9 is further included for drawing the washing liquid through the containing chamber 23.
Preferably, there are two liquid guiding columns 13, the detergent box 6 includes two parts, the first part contains detergent, the second part contains softener, and the two liquid guiding columns 13 are connected with the first part and the second part respectively.
In addition, the invention also provides a liquid level detection method of the liquid level detection device, which comprises the following steps: s1 detecting the liquid level of the containing chamber 23;
s2 judging the detergent amount in the detergent box according to the detected liquid level.
In addition, the invention also provides a washing machine which is provided with the liquid level detection device.
As shown in fig. 9 to 12, the washing machine has a handle 1, a display panel 2, a door body 3, a front panel 4, a U-shaped case 5, a detergent box 6, a handle 8, a liquid suction pump 9, a lower water box 10, and a dispenser box 11. Wherein the liquid suction pump 9 pumps the washing liquid in the detergent box 6 into the liquid suction pump 9 through the liquid guide column 13, and finally flows into the washing machine through the water flow box 10 through the runner plate 77 through the water flow. Wherein the dispenser box 11 may be a part of the detergent box 6, or may be separately configured, and the dispenser box 11 is used for dispensing the detergent of the detergent box 6 out of the cloud. Wherein the display panel 2 can display the amount of detergent and the operation state of the washing machine, and the front case, U case 5, constitutes a housing part of the washing machine. The washing liquid detection device is arranged in the washing machine. If the liquid guide column 13 is fixed on the launching box 10, the sensor is fixed on the liquid guide column 13.
Preferably, the handle 1 of the present invention may be a metal plate handle, the handle 8 may be a plastic handle, the valve seat 22 may also be referred to as a liquid suction valve, the valve stem 18 may also be referred to as a valve core, and the elastic member 16 may be a spring.
The principles and processes of the present invention are described as follows:
as shown in fig. 1 to 12, the drain column 13 is preferably of an L-shaped structure, which communicates with the detergent box through the receiving chamber 23 to form a liquid level communicating structure, and when the detergent box has a predetermined amount of detergent, a part of the detergent can flow into the receiving chamber 23. The sensor probe 12 is inserted into the accommodating cavity 23, and the sensor probe 12 is placed at the lowest liquid level of the washing liquid, so that the detected washing liquid is optimal, and whether the washing liquid exists in the washing agent box 6 or not can be judged. The probe 12 can be screwed into the liquid guiding column 13 from the rear end face of the liquid guiding column 13 by using a thread of the probe 12, and the probe 12 and the liquid guiding column 13 are sealed by a second sealing ring 20.
The accommodating cavity 23 is communicated with the detergent box through a first valve structure, a sleeve 14 can be additionally arranged between the first valve structure and the liquid guide column 13, a flow passage is increased, and the washing liquid can be guided into the accommodating cavity 23; the sleeve 14 is fastened to the drainage column 13 with screws.
When the liquid guiding column 13 is installed in the washing machine, it can be connected with the lower water box 10, wherein the liquid guiding column 13 is fastened to the lower part of the inner wall of the rear end of the lower water box 10 by screws.
The sleeve 14 can be disengaged from the valve rod 18 during the withdrawal of the detergent box 6, and the valve rod 18 can then push the first sealing ring 17 fitted on the valve rod 18 to seal the liquid suction port of the valve seat.
The liquid guiding column 13 can adopt an L-shaped through hole structure design, so that the washing liquid can be conveniently pumped and reversely flowed into the flow path of the flow path plate 7 under the action of the liquid sucking pump 9, and the washing liquid can be quickly sucked into the flow path plate 7 by the liquid sucking pump 9 and is fully fused with the water flowing out of the water valve.
Preferably, the total number of the sensors is 4, two sensors are a group, one group is used for detecting the laundry detergent, the other group is used for detecting the softener, the corresponding detergent box 6 is divided into two parts, one part is used for accommodating the laundry detergent, the other part is used for accommodating the softener, when the liquid flows through the liquid level sensor, the external terminal of the sensor can sense a signal, the addition of the washing liquid is not needed, when no liquid flows through the sensor, the external terminal can send a signal, the fact that no detergent exists is displayed on the display panel 2, and the detergent needs to be added into the detergent box 6.
Preferably, the valve rod 18 and the spring, the first sealing ring 17 are arranged in a deep hole of the detergent box 6, preferably the lower bottom surface of the distributor box 11 in the detergent box 6, wherein the bottom surface of the deep hole is open to allow the valve rod 18 to stretch and retract, the spring is arranged between the valve rod 18 and the bottom surface of the deep hole, the spring valve rod 18 is sleeved on the valve rod 18 and clamped between the front end surface of the protrusion of the valve rod 18 and the orifice of the deep hole of the detergent box 6, and the first sealing ring 17 penetrates through the valve rod 18 and abuts against the opening of the bottom surface of the deep hole to seal the washing liquid and prevent the. The valve cover 15 is arranged at the opening of the deep hole of the detergent box 6 and is fastened at the opening of the deep hole of the distributor box 11 by adopting a buckle to prevent the spring from popping out.
Preferably, a corrugated pipe 19 is arranged in the liquid guiding column 13, the front end of the corrugated pipe 19 is connected with a valve seat 22 of the first valve structure, the corrugated pipe 19 and the valve seat 22 are sleeved in the sleeve 14, meanwhile, the sleeve 14 is fastened to the front end of the liquid guiding column 13 by adopting a screw, in addition, a third sealing ring 21 is arranged on the upper top surface of an inner column channel of the liquid guiding column 13, two cylindrical holes protrude from the lower bottom surface of the runner plate 77, the lower cylindrical holes are inserted into the upper through hole of the liquid guiding column 13, and the third sealing ring 21 is pressed tightly; the four through-tube cylinders in front of the liquid suction pump 9 are respectively inserted into the four through holes designed on the flow channel plate 77 for double liquid suction and double liquid discharge.
When the detergent box 6, preferably the distributor box 11 located in the detergent box 6, is pushed into the drain box 10, the valve rod 18 is pushed into the front end of the deep hole at the lower end of the distributor box 11 by the valve seat 22, and at this time, the cleaning solution flows into the liquid guide column 13 in the gap between the two, and the liquid suction pump 9 can smoothly suck the cleaning solution into the flow channel of the flow channel plate 77. When the detergent box 6 is separated from the draining box 10, the spring releases the elasticity thereof, the valve rod 18 is pushed to move towards the back of the deep hole on the lower bottom of the detergent box 6, and meanwhile, the first sealing ring 17 is pushed to the opening of the deep hole to prevent the leakage of the washing liquid. Because the washing liquid flows into the liquid guiding column 13, the two probes 12 in one group can be in a conducting state by utilizing the conductivity, and the washing liquid is displayed on the display panel 2, if the washing liquid is not available, the probes 12 can not be in the conducting state, and at this time, the fact that the washing agent needs to be added at this time is displayed on the display panel 2.
The probe 12 is transversely arranged at the lower end of the liquid guide column 13 and has the advantages that: 1) the horizontal arrangement can detect whether the washing liquid exists or not in real time, 2) the horizontal arrangement can ensure that the washing agent box 6 is not disturbed when being disassembled, and 3) the horizontal arrangement enables the installation structure to be more simplified.
In the present invention, the screws may be replaced by other suitable fasteners, such as pins, bolts, etc.
The invention has the following beneficial effects: due to the adoption of the liquid level detection device, the utilization of the space of a detergent box and a lower water box is increased, the liquid level sensor can accurately detect the real-time liquid level, the external terminal circuit layout of the liquid level sensor is more reasonable, the sealing performance between the liquid level sensor and the liquid guide column 13 is enhanced, and the experience effect of a user is better.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (11)
1. A detergent level detecting device comprising: a liquid-conducting column (13) and a detector, characterized in that: the liquid guide column (13) is positioned at the outer side of the detergent box (6), the liquid guide column (13) is provided with an accommodating cavity (23) which is communicated with the detergent box (6) in a fluid mode, so that when the detergent box (6) has detergent which is larger than or equal to a first preset amount, at least part of the detergent can flow into the accommodating cavity (23), the liquid level of the detergent in the accommodating cavity (23) can be detected through a detector, and the amount of the detergent in the detergent box (6) can be judged.
2. The fluid level detection apparatus of claim 1, wherein: the horizontal position of the bottom of the accommodating cavity (23) is lower than that of the bottom of the detergent box (6).
3. The liquid level detection apparatus according to claim 1 or 2, wherein: the liquid guide column (13) is approximately L-shaped, and the horizontal part of the L shape is communicated with the detergent box (6).
4. The liquid level detection apparatus according to claim 1 or 2, wherein: the detector is a liquid level sensor, and a probe (12) of the sensor is inserted into the position, close to the bottom, of the accommodating cavity (23) to detect the liquid level.
5. The liquid level detection apparatus according to claim 1 or 2, wherein: the washing machine further comprises a shell used for installing the detergent box (6), the detergent box (6) can be pulled out and retracted relative to the shell, the accommodating cavity (23) is communicated with the detergent box (6) through a corrugated pipe (19), and the accommodating cavity (23) and the detergent box (6) can be always connected in the pulled-out and retracted states of the detergent box (6) through the scalability of the corrugated pipe (19).
6. The liquid level detection apparatus according to claim 1 or 2, wherein: and a housing for mounting the detergent box (6), the detergent box (6) being extractable and retractable with respect to the housing, the accommodating chamber (23) being in communication with the detergent box (6) through a first valve structure, the first valve structure being closed when the detergent box (6) is extracted from the housing, thereby disconnecting the accommodating chamber (23) from the detergent box (6), and being opened when the detergent box (6) is retracted into the housing, thereby communicating the accommodating chamber (23) with the detergent box (6).
7. The fluid level detection apparatus of claim 6, wherein: the first valve structure includes: a valve rod (18), a valve cover (15), an elastic piece (16) and a valve seat (22); a sleeve (14) is arranged between the accommodating cavity (23) and the detergent box (6), and the valve seat (22) is installed in the sleeve (14); the valve seat (22) is provided with a liquid sucking port, one end of the valve rod (18) is slidably mounted in the valve seat (22), the valve rod (18) is further provided with a first sealing device, and the valve cover (15) is provided with a valve cover hole; the other end of the valve rod (18) is slidably arranged in the valve cover hole;
an elastic piece (16) is sleeved on the valve rod (18), the elastic piece (16) is used for providing elastic force for the valve rod (18), so that when the detergent box (6) is pulled out of the shell, the liquid suction port moves outwards along with the detergent box (6), and the elastic piece (16) applies pressing force to the first sealing device to realize the sealing of the liquid suction port;
when the detergent box (6) is retracted into the shell, the liquid suction port moves inwards along with the detergent box (6) and further is far away from the first sealing device, and the liquid suction port is communicated.
8. The liquid level detection apparatus as claimed in any one of claims 1, 2 and 7, wherein: the washing machine also comprises a liquid suction pump (9) for pumping the washing liquid out of the containing cavity (23).
9. The liquid level detection apparatus as claimed in any one of claims 1, 2 and 7, wherein: the detergent box (6) comprises two parts, wherein the first part contains detergent, the second part contains softener, and one of the two liquid guiding columns (13) is communicated with the first part, and the other one is communicated with the second part.
10. A washing machine having a liquid level detection apparatus as claimed in any one of claims 1 to 9.
11. A liquid level detection method of a liquid level detection apparatus according to any one of claims 1 to 9, characterized by comprising the steps of: s1, detecting the liquid level of the accommodating cavity (23);
s2 judging the detergent amount in the detergent box according to the detected liquid level.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783989.0A CN110747606A (en) | 2019-08-23 | 2019-08-23 | Liquid level detection device of detergent box and washing machine |
| PCT/CN2020/095597 WO2021036409A1 (en) | 2019-08-23 | 2020-06-11 | Detergent box liquid level detection device and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783989.0A CN110747606A (en) | 2019-08-23 | 2019-08-23 | Liquid level detection device of detergent box and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110747606A true CN110747606A (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910783989.0A Pending CN110747606A (en) | 2019-08-23 | 2019-08-23 | Liquid level detection device of detergent box and washing machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110747606A (en) |
| WO (1) | WO2021036409A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112323396A (en) * | 2020-11-28 | 2021-02-05 | 珠海格力电器股份有限公司 | Detergent box, detergent box assembly and washing machine |
| WO2021036409A1 (en) * | 2019-08-23 | 2021-03-04 | 珠海格力电器股份有限公司 | Detergent box liquid level detection device and washing machine |
| WO2022242396A1 (en) * | 2021-05-20 | 2022-11-24 | 青岛海尔滚筒洗衣机有限公司 | Liquid guide insertion structure, additive feeding module and laundry treatment apparatus |
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| EP4339352A4 (en) * | 2021-05-10 | 2024-10-23 | Qingdao Haier Drum Washing Machine Co Ltd | Liquid storage box, additive dispensing apparatus, and identification method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204000328U (en) * | 2014-07-15 | 2014-12-10 | 苏州三星电子有限公司 | The device of a kind of automatic interpolation washing agent and softener and use the washing machine of this device |
| CN104404740A (en) * | 2014-11-20 | 2015-03-11 | 合肥荣事达三洋电器股份有限公司 | Detergent feeding device for washing machine |
| CN205443678U (en) * | 2015-12-31 | 2016-08-10 | Tcl家用电器（合肥）有限公司 | Detergent box and washing machine thereof |
| JP2018126287A (en) * | 2017-02-08 | 2018-08-16 | パナソニックＩｐマネジメント株式会社 | Washing machine |
| CN107354679B (en) * | 2017-08-21 | 2019-12-17 | 无锡小天鹅电器有限公司 | Distributor box assembly, detergent feeding device and washing machine |
| CN211112762U (en) * | 2019-08-23 | 2020-07-28 | 珠海格力电器股份有限公司 | Liquid level detection device of detergent box and washing machine |
| CN110747606A (en) * | 2019-08-23 | 2020-02-04 | 珠海格力电器股份有限公司 | Liquid level detection device of detergent box and washing machine |
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2019
- 2019-08-23 CN CN201910783989.0A patent/CN110747606A/en active Pending
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036409A1 (en) * | 2019-08-23 | 2021-03-04 | 珠海格力电器股份有限公司 | Detergent box liquid level detection device and washing machine |
| CN112323396A (en) * | 2020-11-28 | 2021-02-05 | 珠海格力电器股份有限公司 | Detergent box, detergent box assembly and washing machine |
| WO2022242396A1 (en) * | 2021-05-20 | 2022-11-24 | 青岛海尔滚筒洗衣机有限公司 | Liquid guide insertion structure, additive feeding module and laundry treatment apparatus |
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| WO2021036409A1 (en) | 2021-03-04 |
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