CN220853792U - Water tank water level detection device based on hall sensor - Google Patents

Abstract

The utility model discloses a water tank water level detection device based on a Hall sensor, which comprises a base, a water tank and a PCB (printed circuit board), wherein the water tank is arranged in the base, a floater which can float on the water surface is arranged in the water tank, a first magnet is arranged in the floater, the PCB is arranged on the base, a plurality of first Hall sensors are arranged on the PCB along the height direction of the water tank, and the first Hall sensors are used for sensing the position of the first magnet in the floater so as to detect the water level of the water tank. The utility model can timely and accurately detect the water level height of the water tank, avoid manual frequent inspection, timely remind a user of changing water, and is very convenient to use.

Description

Water tank water level detection device based on hall sensor

Technical Field

The utility model relates to a cleaning robot, in particular to a water tank water level detection device based on a Hall sensor.

Background

The existing cleaning robot generally has the functions of sweeping and mopping. In the structure with the floor mopping function, a clean water tank and a sewage tank are usually arranged, and clean water in the clean water tank is used for wetting a mop or a mop, so that the floor can be conveniently wiped; the sewage tank is used for collecting sewage after the mop is wiped. However, the existing clean water tank and sewage tank are only one container, and have single functions. When the clean water in the clean water tank is less and less after a period of cleaning, more and more sewage in the sewage tank, a user needs to add clean water to the clean water tank in time and discharge the sewage in the sewage tank in time so as to prevent the insufficient clean water in the clean water tank and prevent the sewage in the sewage tank from overflowing. Therefore, the user needs to check the water level of the water tank frequently in the later cleaning stage, and the water level cannot be accurately grasped, so that the water level detection device is inconvenient to use.

Disclosure of utility model

The utility model aims to provide a water tank water level detection device based on a Hall sensor, which can timely and accurately detect the water level height of a water tank, avoid manual frequent inspection, timely remind a user of changing water and is very convenient to use.

In order to achieve the above object, the water tank water level detection device based on the Hall sensor provided by the utility model comprises a base, a water tank and a PCB (printed circuit board), wherein the water tank is arranged in the base, a floater which can float on the water surface is arranged in the water tank, a first magnet is arranged in the floater, the PCB is arranged on the base, a plurality of first Hall sensors are arranged on the PCB along the height direction of the water tank, and the first Hall sensors are used for sensing the position of the first magnet in the floater so as to detect the water level height of the water tank.

Compared with the prior art, the water level of the water tank can be rapidly and accurately detected by arranging the floater which can float on the water surface in the water tank and arranging the magnet in the floater and arranging the PCB with the Hall sensor on one side of the seat body and detecting the position of the magnet in the floater by using the Hall sensor; and be connected with the PCB board through hall sensor, can realize instant automated inspection, need not manual intervention, and then can in time remind the user to add clear water or discharge sewage, it is very convenient to use, has greatly improved cleaning robot's automation and intellectuality.

Preferably, a guide rail is arranged in the water tank and close to the inner wall of the PCB, and the floater is arranged on the guide rail in a lifting and sliding manner. Through setting up the guide rail can be right the float is spacing, thereby guarantees first magnet in the float with keep effective distance between the first hall sensor, follow the accuracy and the reliability of guaranteeing first hall sensor detection water level.

Preferably, the outside of pedestal is equipped with along the recess of vertical setting, the PCB board set up in the recess. Therefore, the PCB can be prevented from being exposed out of the base body, and the purpose of protecting the PCB is achieved.

Preferably, the water tank water level detection device based on the Hall sensor further comprises a fixing frame, the PCB is arranged on the fixing frame, and the fixing frame is arranged on the base body. The fixing frame is arranged, so that the PCB can be quickly installed on the base body, and the convenience of assembly is improved.

Preferably, a positioning groove is arranged on the outer side of the water tank, a positioning rib is arranged on the inner wall of the seat body, and the positioning rib is in sliding fit with the positioning groove. Through utilizing constant head tank and locating rib cooperation, both can guarantee the water tank install in the direction when the pedestal is correct, can make again the location of water tank is accurate, improves the convenience of equipment to guarantee each interface of water tank and cleaning robot's the accurate counterpoint of corresponding interface, guarantee cleaning robot job stabilization nature.

Preferably, a second Hall sensor is arranged on the PCB, a second magnet is arranged at one side of the bottom of the water tank, which is close to the PCB, and the second Hall sensor is used for sensing the second magnet. Through the cooperation of second hall sensor with the second magnet, make the PCB board can effectively detect whether the water tank is in place on the pedestal, guarantee the accuracy of water tank installation.

Preferably, the number of the water tanks is two, the two water tanks are arranged in the base body up and down, and the PCB is positioned at the outer sides of the two water tanks. Therefore, the water tank can be divided into a clean water tank and a sewage tank and is detected through the PCB respectively, and the automation and the intellectualization of the cleaning robot are improved.

Drawings

Fig. 1 is an internal cross-sectional view of a water tank water level detection apparatus based on a hall sensor according to the present utility model.

Fig. 2 is an exploded view of the water tank water level detecting apparatus based on the hall sensor of the present utility model.

Detailed Description

In order to describe the technical content, the constructional features and the effects achieved by the present utility model in detail, the following description is made with reference to the embodiments in conjunction with the accompanying drawings.

As shown in fig. 1 and 2, the water tank water level detection device 100 based on the hall sensor of the present utility model is suitable for a clean water tank or a sewage tank used for cleaning a cleaning robot in the cleaning robot, and comprises a base 1, a water tank 2 and a PCB board 3, wherein the base 1 and the water tank 2 are made of plastic materials. The water tank 2 set up in the pedestal 1, be equipped with in the water tank 2 and float 4 on the surface of water, be equipped with first magnet 5 in the float 4, the PCB board 3 set up in on the pedestal 1, the PCB board 3 is followed the direction of height of water tank 2 is equipped with a plurality of first hall sensor 6, first hall sensor 6 is used for the response in the float 4 the position of first magnet 5 is in order to detect the water level height of water tank 2.

The inner wall of the water tank 2, which is close to the PCB 3, is provided with a guide rail 21, and the guide rail 21 is arranged along the height direction of the water tank 2. The float 4 is provided in the guide rail 21 so as to be capable of being lifted and lowered. By arranging the guide rail 21, the float 4 can be limited, so that the effective distance between the first magnet 5 in the float 4 and the first Hall sensor 6 is ensured, and the accuracy and the reliability of water level detection by the first Hall sensor 6 are ensured.

The outer side of the seat body 1 is provided with a groove 11 along the vertical direction, namely, the height direction of the water tank 2, and the groove 11 is positioned at one side close to the guide rail 21. The PCB 3 is arranged in the groove 11. On the one hand, the PCB 3 can be prevented from being exposed out of the base body 1, and the purpose of protecting the PCB 3 is achieved; on the other hand, the first magnet 5 can be closer to the floater 4, so that the position of the first magnet 5 can be detected, and the detection accuracy is improved. The first hall sensors 6 are arranged along the height direction of the water tank 2, thereby forming several gears; wherein, the first hall sensor 6 located at the highest position indicates that the water level of the water tank 2 is at the highest after detecting the first magnet 5, and the first hall sensor 6 located at the lowest position indicates that the water level of the water tank 2 is at the lowest after detecting the first magnet 5. The water tank water level detection device 100 based on the Hall sensor further comprises a fixing frame 9, the PCB 3 is fixedly arranged on the fixing frame 9, and the fixing frame 9 is fixedly arranged on the groove 11 of the base body 1. The fixing frame 9 is arranged, so that the PCB 3 can be quickly installed on the base 1, and the convenience of assembly is improved.

The outside of the water tank 2 is provided with a positioning groove 22, the inner wall of the seat body 1 is provided with a positioning rib 12, and the positioning rib 12 is in sliding fit with the positioning groove 22. By utilizing the matching of the positioning groove 22 and the positioning rib 12, the water tank 2 can be ensured to be installed in the direction of the base body 1 correctly, the water tank 2 can be positioned accurately, the convenience of assembly is improved, each interface of the water tank 2 and the corresponding interface of the cleaning robot are ensured to be aligned accurately, and the working stability of the cleaning robot is ensured.

Be equipped with second hall sensor 7 on the PCB board 3, second hall sensor 7 is located the below of the first hall sensor 6 of lowest position, the bottom of water tank 2 is close to one side of PCB board 3 is equipped with second magnet 8, second magnet 8 install in the concave part of water tank one side. The second hall sensor 7 is used for sensing the second magnet 8. Through setting up second hall sensor 7 with the cooperation of second magnet 8, thereby can effectively detect water tank 2 is in place on the pedestal 1, if water tank 2 installs when in place, second hall sensor 7 detects second magnet 8 guarantees the accuracy of water tank 2 installation. If the water tank 2 is not installed in place, the second hall sensor 7 can not detect the second magnet 8, and an alarm can be sent out through the PCB 3, thereby reminding a user.

The number of the water tanks 2 is two, the two water tanks 2 are arranged in the seat body 1 up and down, the two PCB boards 3 are arranged on the same fixing frame 9, and the two PCB boards 3 are positioned on the same outer side of the two water tanks 2. In this embodiment, the two water tanks 2 are divided into a clean water tank and a sewage tank, and are detected by the PCB board 3, thereby improving the automation and the intellectualization of the cleaning robot. Lifting lugs 23 are pivoted on two sides of the upper surface of the water tank 2, and a user can lift the water tank 2 and separate the water tank from the seat body 1 through the lifting lugs 23, so that clear water can be conveniently added into the water tank 2 or sewage can be conveniently discharged, the water tank 2 can be conveniently cleaned, and the convenience of use is improved. Specifically, in the present embodiment, the upper tank 2 is a clear water tank, and the lower tank 2 is a sewage tank.

Compared with the prior art, the water level of the water tank 2 can be rapidly and accurately detected by arranging the float 4 which can float on the water surface in the water tank 2, arranging the magnet in the float 4 and arranging the PCB 3 with the Hall sensor on one side of the seat body 1 and detecting the position of the magnet in the float 4 by using the Hall sensor; and be connected with PCB board 3 through hall sensor, can realize instant automated inspection, need not manual intervention, and then can in time remind the user to add clear water or discharge sewage, it is very convenient to use, has greatly improved cleaning robot's automation and intellectuality.

The structure and detection principle of the PCB board 3 and the hall sensor related to the hall sensor based water tank water level detection apparatus 100 of the present utility model are well known to those skilled in the art, and will not be described in detail herein.

The foregoing disclosure is merely illustrative of the principles of the present utility model, and thus, it is intended that the scope of the utility model be limited thereto and not by this disclosure, but by the claims appended hereto.

Claims (7)

1. Water tank water level detection device based on hall sensor, its characterized in that: including pedestal, water tank and PCB board, the water tank set up in the pedestal, be equipped with in the water tank and float the float on the surface of water, be equipped with first magnet in the float, the PCB board set up in on the pedestal, the PCB board is followed the direction of height of water tank is equipped with a plurality of first hall sensor, first hall sensor is used for the response in the float the position of first magnet, in order to detect the water level height of water tank.

2. The hall sensor-based water tank water level detection apparatus as claimed in claim 1, wherein: the inner wall of the water tank, which is close to the PCB, is provided with a guide rail, and the floater is arranged on the guide rail in a lifting and sliding manner.

3. The hall sensor-based water tank water level detection apparatus as claimed in claim 1, wherein: the outside of pedestal is equipped with along the recess of vertical setting, the PCB board set up in the recess.

4. The hall sensor-based water tank water level detection apparatus as claimed in claim 1, wherein: the water tank water level detection device based on the Hall sensor further comprises a fixing frame, the PCB is arranged on the fixing frame, and the fixing frame is arranged on the base body.

5. The hall sensor-based water tank water level detection apparatus as claimed in claim 1, wherein: the outside of water tank is equipped with the constant head tank, the inner wall of pedestal is equipped with the locating rib, the locating rib with constant head tank sliding fit.

6. The hall sensor-based water tank water level detection apparatus as claimed in claim 1, wherein: the PCB is provided with a second Hall sensor, a second magnet is arranged on one side, close to the PCB, of the bottom of the water tank, and the second Hall sensor is used for sensing the second magnet.

7. The hall sensor-based water tank water level detection apparatus as claimed in claim 1, wherein: the number of the water tanks is two, the two water tanks are arranged in the base body up and down, and the PCB is positioned at the outer sides of the two water tanks.