CN219250090U - Liquid level detection device and equipment with same - Google Patents
Liquid level detection device and equipment with same Download PDFInfo
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- CN219250090U CN219250090U CN202320064319.5U CN202320064319U CN219250090U CN 219250090 U CN219250090 U CN 219250090U CN 202320064319 U CN202320064319 U CN 202320064319U CN 219250090 U CN219250090 U CN 219250090U
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- liquid level
- connecting pipe
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Abstract
The utility model relates to the technical field of household appliances, in particular to a liquid level detection device and equipment with the same, wherein the liquid level detection device comprises: the detection probe is suitable for being fixedly arranged at a position which is outside the washing cavity and is flush with a preset liquid level in the washing cavity; the connecting pipe is suitable for being fixedly arranged outside the washing cavity, at least the part of the connecting pipe opposite to the detection probe is a transparent pipe, the first end of the connecting pipe is suitable for being communicated with the bottom of the washing cavity, the second end of the connecting pipe is higher than the detection probe and is communicated with the outside air, and the detection probe can emit optical signals passing through the connecting pipe; and the main control board is in communication connection with the detection probe. When water enters the washing cavity, the liquid level in the connecting pipe is the same as the liquid level in the washing cavity in height under the action of atmospheric pressure, the detection probe emits an optical signal, and when the liquid level in the connecting pipe reaches a preset liquid level, the detection probe sends a signal to the main control board. This liquid level detection device detects the liquid level through detecting probe, can detect more accurately.
Description
Technical Field
The utility model relates to the technical field of household appliances, in particular to a liquid level detection device and equipment with the same.
Background
Most of water level detection of a washing cavity of a dish washer in the current market is carried out through a pressure switch, the pressure switch detects the water level in the washing cavity by means of water level pressure, and a certain pressure tolerance range exists in the detection of the water level through the pressure switch, so that the detection is not accurate enough.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to overcome the defect that the detection of the liquid level in the washing cavity of the dish washer by the pressure switch is not accurate enough in the prior art, so as to provide a liquid level detection device capable of accurately detecting the liquid level in the washing cavity and equipment with the liquid level detection device.
In order to solve the above technical problems, the present utility model provides a liquid level detection device, including: the detection probe is suitable for being fixedly arranged at a position which is outside the washing cavity and is flush with a preset liquid level in the washing cavity; the connecting pipe is suitable for being fixedly arranged outside the washing cavity, at least the part of the connecting pipe opposite to the detection probe is a transparent pipe, the first end of the connecting pipe is suitable for being communicated with the bottom of the washing cavity, the second end of the connecting pipe is higher than the detection probe and is communicated with the outside air, and the detection probe can emit optical signals passing through the connecting pipe; and the main control board is in communication connection with the detection probe.
Optionally, the connecting tube is a transparent tube.
Optionally, the pipe orifice of the second end of the connecting pipe is vertically upwards.
Optionally, the second end of the connecting tube is connected to the air intake.
Optionally, the detection probe is a laser probe.
Optionally, the first end of the connecting pipe is communicated with a water tank at the bottom of the washing cavity.
Optionally, the detection probe is fixed on the connecting pipe through a fixing component.
Optionally, the fixing component is a fixing box, the fixing box is fixedly arranged outside the connecting pipe, and the detection probe is located in the fixing box.
Optionally, the fixed box includes detachable upper cover and lower cover that connects, the upper cover with the lower cover is all fixed to be set up outside the connecting pipe, the upper cover with the lower cover encloses jointly and is used for holding the accommodation chamber of test probe.
The utility model also provides equipment with the liquid level detection device, which comprises the liquid level detection device.
The technical scheme of the utility model has the following advantages:
1. according to the liquid level detection device provided by the utility model, in actual application, the detection probe is fixedly arranged outside the washing cavity and is flush with the preset liquid level in the washing cavity, the connecting pipe is fixedly arranged outside the washing cavity, the first end of the connecting pipe is communicated with the bottom of the washing cavity, the second end of the connecting pipe is higher than the detection probe and is communicated with the outside air, when water enters the washing cavity, the liquid level in the connecting pipe is the same as the liquid level in the washing cavity under the action of atmospheric pressure, the detection probe emits an optical signal, when the liquid level in the connecting pipe reaches the preset liquid level, the detection probe sends a signal to the main control board, and the main control board can control to stop continuous water entering the washing cavity. This liquid level detection device detects the liquid level through detecting probe, can detect more accurately.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a liquid level detecting apparatus provided in embodiment 1 of the present utility model when installed outside a washing chamber;
FIG. 2 is a schematic view of a part of the structure of FIG. 1;
fig. 3 is a schematic structural view of the liquid level detecting device.
Reference numerals illustrate:
1. a detection probe; 2. a washing chamber; 3. a connecting pipe; 4. an air intake; 5. a water tank; 6. a fixed box; 601. an upper cover; 602. a lower cover; 603. a support block; 604. a support groove; 7. and a signal line.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Example 1
Most of water level detection of a washing cavity of a dish washer in the current market is carried out through a pressure switch, the pressure switch detects the water level in the washing cavity by means of water level pressure, and a certain pressure tolerance range exists in the detection of the water level through the pressure switch, so that the detection is not accurate enough.
To this end, the present embodiment provides a liquid level detection device.
In one embodiment, as shown in fig. 1 to 3, the liquid level detection device comprises a detection probe 1, a connecting pipe 3 and a main control board.
The detection probe 1 is suitable for being fixedly arranged at a position which is outside the washing cavity 2 and is flush with a preset liquid level in the washing cavity 2; the connecting pipe 3 is suitable for being fixedly arranged outside the washing cavity 2, the connecting pipe 3 is a transparent pipe at least at the part opposite to the detection probe 1, the first end of the connecting pipe 3 is suitable for being communicated with the bottom of the washing cavity 2, the second end of the connecting pipe 3 is higher than the detection probe 1 and is communicated with the outside air, and the detection probe 1 can emit optical signals passing through the connecting pipe 3; the main control board is in communication connection with the detection probe 1.
According to the liquid level detection device provided by the embodiment, in actual application, the detection probe 1 is fixedly arranged outside the washing cavity 2 and is flush with the preset liquid level in the washing cavity 2, the connecting pipe 3 is fixedly arranged outside the washing cavity 2, the first end of the connecting pipe 3 is communicated with the bottom of the washing cavity 2, the second end of the connecting pipe 3 is higher than the detection probe 1 and is communicated with the outside air, when water enters the washing cavity 2 under the action of atmospheric pressure, the liquid level in the connecting pipe 3 is identical to the liquid level in the washing cavity 2, the detection probe 1 emits an optical signal, when the liquid level in the connecting pipe 3 reaches the preset liquid level, the detection probe 1 sends a signal to the main control board, and the main control board can control to stop continuous water entering the washing cavity 2. In the present embodiment, the liquid level is detected by the detection probe 1, and more accurate detection is possible.
As shown in fig. 3, one end of the inspection probe 1 is connected to the main control board through a signal line 7, so that the inspection probe 1 can transmit a signal to the main control board.
The washing chamber 2 in this embodiment may be the washing chamber 2 of a dishwasher, or may be the washing chamber 2 of another device having a washing function, for example, the washing chamber 2 of a washing machine, and in this embodiment, the washing chamber 2 of a dishwasher is preferable.
It should be noted that, when water and no water exist at the position of the connecting pipe 3 flush with the preset liquid level of the washing cavity 2, the time of receiving the optical signal by the receiving end will change after the transmitting end of the detecting probe 1 transmits the optical signal, so that it can be determined whether water exists at the position of the connecting pipe 3 flush with the preset liquid level of the washing cavity 2.
In addition to the above embodiments, in a preferred embodiment, the connection tube 3 is a transparent tube. In this embodiment, the whole connecting pipe 3 is transparent pipe, more is convenient for the preparation of connecting pipe 3, and simultaneously when connecting pipe 3 installs, need not have strict requirements to the position of connecting pipe 3, only need the second end of connecting pipe 3 be higher than detection probe 1 and with outside air communicate with each other can, reduced the length and the installation requirement to connecting pipe 3. Of course, in an alternative embodiment, the connecting tube 3 is only partially a transparent tube.
Wherein, the connecting pipe 3 is preferably a plastic hose, which is more convenient for processing, manufacturing and installation and is not easy to damage. Of course, in an alternative embodiment, the connecting tube 3 may be a transparent rigid tube.
On the basis of the above embodiment, in a preferred embodiment, the mouth of the second end of the connecting tube 3 is arranged vertically upwards. In this embodiment, by disposing the nozzle of the second end of the connection pipe 3 vertically upward, the liquid level in the connection pipe 3 can be ensured, so that the liquid level can be accurately detected.
In addition to the above embodiment, the second end of the connection pipe 3 is connected to the air intake 4. In this embodiment, since the air intake device 4 serves to intake air into the washing chamber 2, the second end of the connection pipe 3 is connected to the air intake device 4, so that the position of the connection pipe 3 can be fixed, and the second end of the connection pipe 3 can be ensured to communicate with the outside atmosphere.
Specifically, in one embodiment, a structure such as a hook or a buckle may be provided on the air intake device 4, so as to fix the connection pipe 3.
In an alternative embodiment, the second end of the connection tube 3 may be fixed at other positions outside the washing chamber 2.
In addition to the above embodiments, in a preferred embodiment, the detection probe 1 is a laser probe. In this embodiment, the transmitting end of the laser probe may transmit a laser signal, the laser signal may penetrate the connecting pipe 3, and the receiving end of the laser probe receives the laser signal, when there is water or no water at the position of the connecting pipe 3 that is flush with the preset liquid level of the washing chamber 2, the time of the receiving end receiving the laser signal will change after the transmitting end of the laser probe transmits the laser signal, so it can be determined whether there is water at the position of the connecting pipe 3 that is flush with the preset liquid level of the washing chamber 2. In an alternative embodiment, the detection probe 1 may be an infrared probe, which may emit infrared light.
On the basis of the above embodiment, in a preferred embodiment, the first end of the connection pipe 3 communicates with the water tank 5 at the bottom of the washing chamber 2. In this embodiment, the washing chamber 2 is a washing chamber 2 of a dishwasher, a water tank 5 is arranged at the bottom of the washing chamber 2, and a water pump can pump water in the water tank 5 into a spray arm to spray out during washing to wash tableware in the washing chamber 2, and the first end of the connecting pipe 3 is communicated with the water tank 5 at the bottom of the washing chamber 2 without forming a through hole on the side wall of the washing chamber 2.
On the basis of the above embodiment, in a preferred embodiment, the detection probe 1 is fixed to the connection pipe 3 by a fixing assembly. In this embodiment, by fixing the detection probe 1 to the connection pipe 3, it is unnecessary to fix the detection probe 1 to the washing chamber 2, and when assembling, the detection probe 1 is fixed to the connection pipe 3 in advance, and then the connection pipe 3 is attached, and it is unnecessary to attach the detection probe 1 again, thereby facilitating the assembling. Of course, in an alternative embodiment, the connection tube 3 and the detection probe 1 may be separately installed and fixed.
In a preferred embodiment, the fixing component is a fixing box 6, the fixing box 6 is fixedly arranged outside the connecting pipe 3, and the detection probe 1 is positioned in the fixing box 6. In this embodiment, since the fixing component is the fixing case 6, the fixing case 6 can protect the detection probe 1 from collision, and at the same time, the transmitting end and the receiving end of the detection probe 1 are both located in the fixing case 6, so that the laser can be prevented from being irradiated to the outside.
On the basis of the above embodiment, in a preferred embodiment, the fixing case 6 includes an upper cover 601 and a lower cover 602 which are detachably connected, the upper cover 601 and the lower cover 602 are fixedly disposed outside the connection pipe 3, and the upper cover 601 and the lower cover 602 jointly enclose a housing cavity for housing the detection probe 1. In this embodiment, since the upper cover 601 and the lower cover 602 are detachably connected, the inspection probe 1 is easily installed, fixed, and maintained.
Specifically, in one embodiment, the upper cover 601 and the lower cover 602 are both provided with a supporting block 603, the supporting block 603 is provided with a supporting groove 604 adapted to the shape of the detection probe 1, and the detection probe 1 is clamped in the supporting groove 604.
In particular, in one embodiment, the upper cover 601 and the lower cover 602 may be coupled by screws. In an alternative embodiment, the upper cover 601 and the lower cover 602 are connected by a snap fit.
Example 2
The present embodiment provides an apparatus having a liquid level detection device, including the liquid level detection device provided in the above embodiment.
In particular in this embodiment, the device with the liquid level detection means is a dishwasher.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. A liquid level detection apparatus, comprising:
the detection probe (1) is suitable for being fixedly arranged outside the washing cavity (2) and is in a position which is flush with a preset liquid level in the washing cavity (2);
the connecting pipe (3) is suitable for being fixedly arranged outside the washing cavity (2), the connecting pipe (3) is a transparent pipe at least at the part opposite to the detection probe (1), the first end of the connecting pipe (3) is suitable for being communicated with the bottom of the washing cavity (2), the second end of the connecting pipe (3) is higher than the detection probe (1) and is communicated with the outside air, and the detection probe (1) can emit optical signals passing through the connecting pipe (3);
and the main control board is in communication connection with the detection probe (1).
2. The liquid level detection device according to claim 1, characterized in that the connecting tube (3) is a transparent tube.
3. The liquid level detection device according to claim 1, characterized in that the mouth of the second end of the connecting tube (3) is arranged vertically upwards.
4. A liquid level detection device according to claim 3, characterized in that the second end of the connecting tube (3) is connected to the air inlet (4).
5. The liquid level detection device according to any one of claims 1-4, characterized in that the detection probe (1) is a laser probe.
6. The liquid level detection device according to any one of claims 1-4, characterized in that the first end of the connecting pipe (3) is in communication with a water trough (5) at the bottom of the washing chamber (2).
7. The liquid level detection device according to any one of claims 1-4, characterized in that the detection probe (1) is fixed to the connection tube (3) by a fixing assembly.
8. The liquid level detection device according to claim 7, wherein the fixing component is a fixing box (6), the fixing box (6) is fixedly arranged outside the connecting pipe (3), and the detection probe (1) is located in the fixing box (6).
9. The liquid level detection device according to claim 8, wherein the fixing box (6) comprises an upper cover (601) and a lower cover (602) which are detachably connected, the upper cover (601) and the lower cover (602) are fixedly arranged outside the connecting pipe (3), and the upper cover (601) and the lower cover (602) jointly enclose a containing cavity for containing the detection probe (1).
10. An apparatus having a liquid level detection device, characterized by comprising a liquid level detection device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320064319.5U CN219250090U (en) | 2023-01-05 | 2023-01-05 | Liquid level detection device and equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320064319.5U CN219250090U (en) | 2023-01-05 | 2023-01-05 | Liquid level detection device and equipment with same |
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| Publication Number | Publication Date |
|---|---|
| CN219250090U true CN219250090U (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320064319.5U Active CN219250090U (en) | 2023-01-05 | 2023-01-05 | Liquid level detection device and equipment with same |
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| CN (1) | CN219250090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117481566A (en) * | 2024-01-02 | 2024-02-02 | 珠海格力电器股份有限公司 | Dishwasher water quantity detection method and device, dishwasher and storage medium |
-
2023
- 2023-01-05 CN CN202320064319.5U patent/CN219250090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117481566A (en) * | 2024-01-02 | 2024-02-02 | 珠海格力电器股份有限公司 | Dishwasher water quantity detection method and device, dishwasher and storage medium |
| CN117481566B (en) * | 2024-01-02 | 2024-04-12 | 珠海格力电器股份有限公司 | Dishwasher water quantity detection method and device, dishwasher and storage medium |
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