CN209951192U - Liquid level control device of dish washing machine - Google Patents
Liquid level control device of dish washing machine Download PDFInfo
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- CN209951192U CN209951192U CN201821040450.3U CN201821040450U CN209951192U CN 209951192 U CN209951192 U CN 209951192U CN 201821040450 U CN201821040450 U CN 201821040450U CN 209951192 U CN209951192 U CN 209951192U
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- water level
- dishwasher
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- liquid level
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Abstract
The utility model discloses a liquid level control device of dish washer, it includes at least: a liquid level detector for detecting the liquid level of the dishwasher and a controller electrically connected with the liquid level detector. Wherein the controller is also electrically connected with an electromagnetic valve, and the electromagnetic valve is arranged on a water inlet pipe of the dish-washing machine. The controller can also control the on-off of the heating device. The liquid level detector detects the liquid level of the dish washing machine, and then the controller opens or closes the electromagnetic valve according to the detected liquid level information, thereby achieving the purpose of controlling the liquid level of the dish washing machine. In addition, the liquid level detector detects that the liquid level of the dishwasher is equal to or higher than the preset heating water level, the heating device is heated, and the risk of overheating damage caused by heating the heating device at a low water level is avoided.
Description
Technical Field
The utility model relates to the field of household appliances, especially, relate to a liquid level control device of dish washer.
Background
Generally, dish washer all can set up heating device and heat water, so that it reaches better clean effect to improve the temperature, and current dish washer all is manual watering basically, and add the water in-process and need artificial tracking control water level, it does not have water level protect function to add after having done water, and at the in-process of washing dishes, the dish washer spill can be followed to the water that has that is difficult to avoid, some factors such as evaporation of water acceleration are led to in addition heating device's heating, will lead to the decline of water level in the dish washer, when the decline of water level is too much and do not in time add water, can lead to the overheated damage of heating device, and too low water level also can make the normal washing of dish washer difficult to go on, influence clear effect.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a liquid level control device of a dish washing machine, which can control the liquid level of the dish washing machine and the heating time of a heating device, avoid influencing the cleaning effect of the dish washing machine due to too low liquid level and avoid overheating damage of the heating device due to too low liquid level.
The purpose of the utility model is realized by adopting the following technical scheme:
a level control apparatus of a dishwasher, comprising: the dishwasher level detection device comprises a liquid level detector and a controller, wherein the liquid level detector is used for detecting the liquid level of the dishwasher; the controller is also electrically connected with an electromagnetic valve, the electromagnetic valve is arranged on a water inlet pipe of the dish-washing machine, and the controller is suitable for controlling the on-off of the electromagnetic valve and the on-off of a heating device in the dish-washing machine; when the liquid level detector detects that dish washer liquid level is less than or equal to predetermineeing minimum water level, the controller just opens the solenoid valve with the switch-on inlet tube to supply water in the dish washer, until when the liquid level detector detects that dish washer liquid level equals to predetermineeing the maximum water level, the controller just closes the solenoid valve is right in order to stop dish washer supplies water, works as when the liquid level detector detects that the dish washer liquid level equals or is higher than when predetermineeing the heating water level, the heating device heating is just opened to the controller.
Further, the liquid level detector comprises: the dishwasher comprises a first water level sensor, a second water level sensor and a third water level sensor, wherein the first water level sensor is located at the position of the lowest water level preset inside the dishwasher and electrically connected with a controller, the second water level sensor is located at the position of the highest water level preset inside the dishwasher and electrically connected with the controller, and the third water level sensor is located at the position of the heating water level preset inside the dishwasher and electrically connected with the controller.
Further, the liquid level detector comprises: the dishwasher comprises a fourth water level sensor and a fifth water level sensor, wherein the fourth water level sensor and the fifth water level sensor are electrically connected with the controller, the fourth water level sensor is provided with a first detection point position and a second detection point position, the first detection point position is located at the lowest water level position preset inside the dishwasher, the second detection point position is located at the highest water level position preset inside the dishwasher, and the fifth water level sensor is located at the heating water level position preset inside the dishwasher.
Further, the liquid level detector comprises: a first guide bar disposed inside the dishwasher in a vertical direction, and a second guide bar disposed inside the dishwasher in the vertical direction; first guide arm both ends are configured with first contactor and second contactor respectively, just first contactor is located the minimum water level department is predetermine to dishwasher inside, and with the controller electricity is connected, the second contactor is located the maximum water level department is predetermine to dishwasher inside, and with the controller electricity is connected, the cover is equipped with first buoy on the first guide arm, first buoy is suitable for to trigger under the effect of gravity first contactor to and be suitable for to trigger the second contactor under the effect of buoyancy, second guide arm one end configuration third contactor, just the third contactor is located the heating water level department is predetermine to dishwasher inside, the cover is equipped with the second buoy on the second guide arm, the second buoy is suitable for to trigger under the effect of buoyancy third contactor.
Further, the liquid level control device of the dishwasher further comprises a protective filter screen cover, the first guide rod, the first buoy, the first contactor and the second contactor are covered by the protective filter screen cover, and the second guide rod, the second buoy and the third contactor are covered by the protective filter screen cover.
Further, the liquid level control apparatus of the dishwasher further comprises: disconnecting the delayer; the disconnection delayer is connected with the controller, when the liquid level of the dish washer is higher than the preset lowest water level, the disconnection delayer is started to delay the function, and when the liquid level of the dish washer is equal to the preset highest water level, the disconnection delayer is disconnected, so that the controller is powered off, the electromagnetic valve is closed, and the water supply of the dish washer is stopped.
Compared with the prior art, the beneficial effects of the utility model reside in that: the liquid level detector detects the liquid level of the dish washing machine, and then the controller opens or closes the electromagnetic valve according to the detected liquid level information, thereby achieving the purpose of controlling the liquid level of the dish washing machine. Specifically, when the water level is lower than the preset lowest water level, the controller opens the solenoid valve to connect the water inlet pipe to supply water to the dishwasher, and when the water level is equal to the preset highest water level, the controller closes the solenoid valve to stop supplying water to the dishwasher. Therefore, the water level height in the dish washing machine can be kept, the dish washing machine cannot influence the cleaning effect due to too low water level, and the water level of the dish washing machine cannot be too high to cause water overflow. In addition, generally speaking, predetermine the heating water level and can not be less than heating device's mounting height, and predetermine the heating water level and will be less than predetermineeing minimum water level, when level detector detected that dish washer liquid level height equals or is higher than predetermineeing the heating water level, heating device just heats, and this just avoids the risk of heating device overheat damage that leads to in the low water level heating, and heating device need not wait again and just begin to heat when water fills up to predetermineeing maximum water level, can let the heating process in time go on like this, practices thrift the time of washing flow.
Drawings
Fig. 1 is a perspective view of a liquid level control device of a dishwasher according to the present invention.
In the figure: 1. an electromagnetic valve; 2. a water inlet pipe; 31. presetting a lowest water level; 32. presetting a highest water level; 33. Presetting a heating water level; 41. a first guide bar; 42. a first buoy; 51. a second guide bar; 52. a second buoy.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1, the liquid level control device of a dishwasher according to an embodiment of the present invention is shown, which at least includes: a liquid level detector for detecting the liquid level of the dishwasher and a controller electrically connected with the liquid level detector. Wherein the controller is also electrically connected with an electromagnetic valve 1, the electromagnetic valve 1 is arranged on a water inlet pipe 2 of the dishwasher, it is understood that the water inlet pipe 2 of the dishwasher can be directly connected with a tap water pipe generally, so as to conveniently supply water to the dishwasher. In addition, in order to further improve the cleaning effect, a heating device is arranged in a dish washing pool of the dish washing machine in the prior art, so that the water temperature is improved, and the aim of further cleaning is fulfilled. In this embodiment, the controller may also control the on/off of the heating device.
When using the liquid level control device of this dish washer, need predetermine minimum water level, the highest water level and the heating water level of dish washer according to the in service behavior of reality, generally speaking, predetermine minimum water level 31 for can maintaining the minimum water level that the dish washer normally washed the dishes, predetermine the highest water level 32 for can maintaining the maximum water level that the dish washer normally washed the dishes, generally not surpass the wash-basin of dish washer can. The preset heating water level 33 cannot be lower than the installation height of the heating device and is lower than the preset minimum water level 31. Then after setting the preset minimum level 31, the preset maximum level 32, and the preset heating level 33 of the dishwasher, the level control device of the dishwasher may be turned on to control the level.
For example, under the initial condition of just starting up, there is not water in the dish washer, the liquid level detector will detect that the liquid level of dish washer is less than and predetermines minimum water level 31, at this moment the controller is convenient for open solenoid valve 1 and supplies water in to the dish washer with switch-on inlet tube 2, when liquid level detector detected that dish washer liquid level equals to predetermine maximum water level 32, solenoid valve 1 was just closed to the controller in order to stop supplying water to the dish washer, just so can keep the water level in the dish washer, make dish washer can not influence clean effect because the water level is low excessively, also can not make the too high and lead to water of dish washer. In addition, the heating device is heated only when the liquid level detector detects that the liquid level of the dishwasher is equal to or higher than the preset heating water level 33, so that damage to the heating device due to overheating is avoided when the water level is low. For example, when the water level is lower than the installation height of the heating device, if the heating device is turned on, the heating device is in a "dry-fire" state, resulting in overheating damage. In addition, only when the water level in the dish washer is less than predetermineeing minimum water level 31, solenoid valve 1 just can open, just close when the water level reaches predetermineeing maximum water level 32, because there is the loss of water when washing dishes, so water level in the dish washer can slowly reduce to minimum water level 31 from maximum water level 32, and when the water level is less than minimum water level 31, solenoid valve 1 just restarts, just so can make the water level can keep predetermineeing between minimum water level 31 and the predetermined maximum water level 32, can satisfy the needs that the dish washer normally washed dishes, the frequent start of solenoid valve 1 has also been avoided simultaneously, solenoid valve 1's life has been prolonged.
As a preferred embodiment, the level control apparatus of the dishwasher further comprises: disconnecting the delayer; the disconnection delayer is connected with the controller, when the liquid level of the dish washer is higher than the preset lowest water level 31, the disconnection delayer is started to delay the function, and when the liquid level of the dish washer is equal to the preset highest water level 32, the disconnection delayer is disconnected to lose power of the controller, so that the electromagnetic valve 1 is closed, and the water supply of the dish washer is stopped. For example, the off-delay may be set to delay the 5 second off-delay, and then the off-delay is activated when the level of the liquid in the dishwasher is higher than the preset minimum level 31, and the off-delay is activated after 5 seconds, at which time the level of the liquid in the dishwasher should be equal to the preset maximum level 32. Here, 5 seconds is not a criterion for the disconnection of the time delay, as long as the level of the liquid in the dishwasher is equal to the predetermined maximum level 32 within the time delay.
Preferably, the liquid level detector comprises: the dishwasher comprises a first water level sensor, a second water level sensor and a third water level sensor, wherein the first water level sensor is located at the position of a preset lowest water level 31 inside the dishwasher and electrically connected with a controller, the second water level sensor is located at the position of a preset highest water level 32 inside the dishwasher and electrically connected with the controller, and the third water level sensor is located at the position of a preset heating water level 33 inside the dishwasher and electrically connected with the controller. That is, the liquid level detector detects the water level through the first water level sensor, the second water level sensor, and the third water level sensor.
As an embodiment of the liquid level detector, the liquid level detector comprises: fourth water level sensor and fifth water level sensor, just fourth water level sensor and fifth water level sensor all with the controller electricity is connected, wherein fourth water level sensor has first detection point position and second detection point position, first detection point position in 31 departments of minimum water level are predetermine to dishwasher is inside, the second detection point position is located 32 departments of maximum water level are predetermine to dishwasher is inside, fifth water level sensor is located 33 departments of heating water level are predetermine to dishwasher is inside.
As another embodiment of the liquid level detector, it comprises: a first guide bar 41 disposed at an inside of the dishwasher in a vertical direction, and a second guide bar 51 disposed at an inside of the dishwasher in a vertical direction; a first contactor and a second contactor are respectively arranged at two ends of a first guide rod 41, the first contactor is positioned at a preset lowest water level 31 in the dishwasher and is electrically connected with a controller, the second contactor is positioned at a preset highest water level 32 in the dishwasher and is electrically connected with the controller, a first buoy 42 is sleeved on the first guide rod 41, and the first buoy 42 is suitable for triggering the first contactor under the action of gravity and suitable for triggering the second contactor under the action of buoyancy; one end of the second guide rod 51 is provided with a third contactor, the third contactor is positioned at the preset heating water level 33 in the dishwasher and is electrically connected with the controller, a second buoy 52 is sleeved on the second guide rod 51, and the second buoy 52 is suitable for triggering the third contactor under the action of buoyancy. When the first contactor is in a state of being triggered by the first buoy 42, that is, the liquid level of the dishwasher is lower than the preset minimum water level 31, the controller will open the electromagnetic valve 1 to connect the water inlet pipe 2 to supply water into the dishwasher, and will not close the electromagnetic valve 1 until the first buoy 42 triggers the second contactor under the action of buoyancy, that is, the liquid level of the dishwasher has reached the height of the preset maximum water level 32. In addition, the second buoy 52 will trigger the third contactor under the buoyancy when the level of the dishwasher level is equal to or greater than the preset heating level 33, thereby allowing the heating device to heat. The first buoy 42 can smoothly trigger the first contactor and the second contactor without deviation due to the guiding function of the first guide rod 41. Also, the second buoy 52 can smoothly trigger the third contactor without deviation by the guiding function of the second guide rod 51.
Preferably, the liquid level control apparatus of the dishwasher further includes a protection screen cover, the first guide rod 41, the first buoy 42, the first contactor, and the second contactor are covered by the protection screen cover, and the second guide rod 51, the second buoy 52, and the third contactor are covered by the protection screen cover. The screen panel can avoid food waste to block contact site, make the smooth trigger contactor of buoy ability, the screen panel also can avoid washing the collision of in-process simultaneously, the damage of guide arm, buoy and contactor that leads to avoids the undulant influence buoy of liquid level of water undulant simultaneously, ensures the signal stability of liquid level detector, promotes the utility model discloses dish washer's liquid level control device's reliability. The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (6)
1. A level control apparatus of a dishwasher, comprising: the dishwasher level detection device comprises a liquid level detector and a controller, wherein the liquid level detector is used for detecting the liquid level of the dishwasher; the controller is also electrically connected with an electromagnetic valve, the electromagnetic valve is arranged on a water inlet pipe of the dish-washing machine, and the controller is suitable for controlling the on-off of the electromagnetic valve and the on-off of a heating device in the dish-washing machine.
2. The level control apparatus of a dishwasher of claim 1, wherein the level detector comprises: the dishwasher comprises a first water level sensor, a second water level sensor and a third water level sensor, wherein the first water level sensor is located at the position of the lowest water level preset inside the dishwasher and electrically connected with a controller, the second water level sensor is located at the position of the highest water level preset inside the dishwasher and electrically connected with the controller, and the third water level sensor is located at the position of the heating water level preset inside the dishwasher and electrically connected with the controller.
3. The level control apparatus of a dishwasher of claim 1, wherein the level detector comprises: the dishwasher comprises a fourth water level sensor and a fifth water level sensor, wherein the fourth water level sensor and the fifth water level sensor are electrically connected with the controller, the fourth water level sensor is provided with a first detection point position and a second detection point position, the first detection point position is located at the lowest water level position preset inside the dishwasher, the second detection point position is located at the highest water level position preset inside the dishwasher, and the fifth water level sensor is located at the heating water level position preset inside the dishwasher.
4. The level control apparatus of a dishwasher of claim 1, wherein the level detector comprises: a first guide bar disposed inside the dishwasher in a vertical direction, and a second guide bar disposed inside the dishwasher in the vertical direction; first guide arm both ends are configured with first contactor and second contactor respectively, just first contactor is located the minimum water level department is predetermine to dishwasher inside, and with the controller electricity is connected, the second contactor is located the maximum water level department is predetermine to dishwasher inside, and with the controller electricity is connected, the cover is equipped with first buoy on the first guide arm, first buoy is suitable for to trigger under the effect of gravity first contactor to and be suitable for to trigger the second contactor under the effect of buoyancy, second guide arm one end configuration third contactor, just the third contactor is located the heating water level department is predetermine to dishwasher inside, the cover is equipped with the second buoy on the second guide arm, the second buoy is suitable for to trigger under the effect of buoyancy third contactor.
5. The liquid level control apparatus of a dishwasher of claim 4, further comprising a protective screen cover, wherein the first guide bar, the first float, the first contactor, and the second contactor are covered by the protective screen cover, and the second guide bar, the second float, and the third contactor are covered by the protective screen cover.
6. The dishwasher level control apparatus of claim 1, further comprising: disconnecting the delayer; the disconnection delayer is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821040450.3U CN209951192U (en) | 2018-07-02 | 2018-07-02 | Liquid level control device of dish washing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821040450.3U CN209951192U (en) | 2018-07-02 | 2018-07-02 | Liquid level control device of dish washing machine |
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| CN209951192U true CN209951192U (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821040450.3U Active CN209951192U (en) | 2018-07-02 | 2018-07-02 | Liquid level control device of dish washing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111166266A (en) * | 2020-01-19 | 2020-05-19 | 珠海格力电器股份有限公司 | Dish washing machine and washing control method thereof |
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2018
- 2018-07-02 CN CN201821040450.3U patent/CN209951192U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111166266A (en) * | 2020-01-19 | 2020-05-19 | 珠海格力电器股份有限公司 | Dish washing machine and washing control method thereof |
| CN111166266B (en) * | 2020-01-19 | 2021-03-09 | 珠海格力电器股份有限公司 | Dish washing machine and washing control method thereof |
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