Submersible electric pump with intelligent switch and control system thereof

Abstract

The utility model discloses a submersible electric pump with an intelligent switch, which belongs to the technical field of submersible electric pumps, and is characterized in that the submersible electric pump comprises a submersible electric pump, a switch shell and a control panel, the control panel is mounted in the switch shell, the control panel is in signal connection with a controller of the submersible electric pump, and an inductive probe for detecting liquid level is arranged on the control panel. The inductive probe transmits a signal to the control panel, the control panel transmits a control signal to a controller of the submersible electric pump, so that the controller controls the submersible electric pump to start or stop, a user only needs to place the intelligent switch at a corresponding position, the liquid level is detected through the inductive probe, the signal is transmitted, and then the controller controls the submersible electric pump to start or stop. The utility model further provides a control system applied to the submersible electric pump.

Description

Technical Field

[0001] The utility model belongs to the technical field of submersible electric pumps, in particular to a submersible electric pump with an intelligent switch and a control system thereof. Background Art

[0002] A submersible electric pump is a general-purpose water-lifting machine that operates underwater, with a motor and pump directly connected. Its operating principle is that the motor drives the impeller through the pump shaft at high speed. Centrifugal force exerts work on the liquid, converting mechanical energy into liquid energy. Liquid (water) flies off the impeller and ejects outward. Within the diffusion chamber of the pump casing, the ejected liquid gradually slows down and its pressure increases, before flowing out the discharge pipe at the pump's outlet.

[0003] Considering the safety and efficiency of submersible pump operation, the stop water level (minimum water level) of traditional submersible pumps is usually higher than the center line of the pump outlet pipe (generally around 10-15 cm). When the water level is lower than the stop water level, the submersible pump will automatically stop pumping water to prevent the equipment from operating in a waterless or low water level state, thereby protecting the equipment and extending its service life. Therefore, traditional submersible pumps cannot pump water at low water levels. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems in the prior art and propose a submersible electric pump with an intelligent switch and a control system thereof. The technical problem to be solved by the utility model is: how to achieve water pumping when the liquid level is low.

[0005] The above technical objectives of the present utility model can be achieved through the following technical solutions: a submersible electric pump with an intelligent switch, comprising a submersible electric pump, a switch housing and a control panel, wherein the control panel is installed in the switch housing, the control panel is connected to the controller signal of the submersible electric pump, the control panel is provided with an induction probe for detecting the liquid level, the induction probe transmits a signal to the control panel, the control panel transmits a control signal to the controller of the submersible electric pump, so that the controller controls the submersible electric pump to start or stop, a waterproof coating is provided on the control panel, the waterproof coating is used to seal the control panel and the gap between the control panel and the switch housing, a wire threading hole is opened on the switch housing for the power supply line to pass through, a sealing sleeve is provided in the wire threading hole, the outer wall of the sealing sleeve is in contact with the inner wall of the wire threading hole, and the sealing sleeve is sleeved on the outer wall of the wire.

[0006] In the above-mentioned submersible electric pump with intelligent switch, a positioning groove is provided on the inner side wall of the switch housing, and a positioning protrusion is provided on the side wall of the control panel, and the positioning protrusion is inserted into the positioning groove.

[0007] In the above-mentioned submersible electric pump with an intelligent switch, a plurality of support columns for supporting the control panel are provided in the switch housing.

[0008] In the above-mentioned submersible electric pump with intelligent switch, a plurality of through holes are provided on the control panel, and a plurality of the support columns are provided with mounting holes, and the through holes correspond to the mounting holes.

[0009] In the above-mentioned submersible electric pump with intelligent switch, the waterproof coating is made of epoxy resin.

[0010] In the above-mentioned submersible electric pump with intelligent switch, the sealing sleeve is made of rubber.

[0011] A control system is applied to the above-mentioned submersible electric pump with an intelligent switch. The sensing probe detects the liquid level and transmits a signal to the control board. The control board receives the signal from the sensing probe and converts it into a control signal and transmits it to the controller of the submersible electric pump. The controller controls the start and stop of the submersible electric pump.

[0012] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0013] As long as the liquid level is reached, the induction probe transmits a signal to the control panel, and the control panel transmits a control signal to the controller of the submersible pump. The controller controls the submersible pump to start pumping water. Therefore, the user only needs to place the smart switch at the bottom of the corresponding liquid level, and use the induction probe to detect the liquid level and signal transmission, so that the controller can control the start and stop of the submersible pump to achieve low liquid level pumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial structural diagram of an embodiment;

[0015] Figure 2 Schematic diagram of the structure of the switch housing of the embodiment;

[0016] Figure 3 is a schematic diagram of a waterproof coating according to an embodiment;

[0017] Figure 4 Schematic diagram of a submersible electric pump according to an embodiment;

[0018] Figure 5 is a schematic diagram of a control system of an embodiment;

[0019] Figure 6 Schematic diagram of the control system of the embodiment.

[0020] Figure numerals: 1. switch housing; 2. control panel; 3. induction probe; 4. positioning groove; 5. positioning protrusion; 6. threading hole; 7. sealing sleeve; 8. support column; 9. through hole; 10. mounting hole; 11. waterproof coating; 12. submersible electric pump. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] Submersible electric pumps with intelligent switches, such as Figures 1 to 4 As shown, it includes a submersible electric pump 12 , a switch housing 1 and a control panel 2 , wherein the control panel 2 is installed in the switch housing 1 .

[0023] Specifically, a plurality of support columns 8 for supporting the control board 2 are provided in the switch housing 1. In this embodiment, the lower surface of the control board 2 is abutted against the end surface of the support columns 8, so that the support columns 8 support the control board 2, thereby ensuring the stability of the control board 2.

[0024] Furthermore, a plurality of through holes 9 are provided on the control panel 2, and a plurality of mounting holes 10 are provided on the support columns 8. The through holes 9 correspond to the mounting holes 10 one by one. When installing the control panel 2, fasteners are passed through the through holes 9 and connected to the mounting holes 10, and the control panel 2 is connected to the support columns 8 through fasteners. In this embodiment, the fasteners are screws, and the screws are threadedly connected to the mounting holes 10, thereby achieving a stable installation of the control panel 2 and facilitating the disassembly and assembly of the control panel 2.

[0025] The inner side wall of the switch housing 1 is provided with a positioning groove 4, and the side wall of the control board 2 is provided with a positioning protrusion 5, which is adapted to the positioning groove 4, and the positioning protrusion 5 is inserted into the positioning groove 4, and the lower surface of the positioning protrusion 5 is against the bottom of the positioning groove 4. It should be noted that during installation, the positioning protrusion 5 is first aligned with the positioning groove 4, and then the positioning protrusion 5 is inserted into the positioning groove 4. The positioning groove 4 restricts the positioning protrusion 5, thereby achieving relative stability between the control board 2 and the switch housing 1. At this time, the through hole 9 is aligned with the mounting hole 10, which makes it easier and more convenient for users to install fasteners, and can effectively improve the installation efficiency of the control board 2.

[0026] The control panel 2 is connected to the controller of the submersible electric pump 12 via a signal. In this embodiment, the control panel 2 is connected to the controller of the submersible electric pump 12 via an electric wire to achieve power supply and signal transmission.

[0027] Furthermore, a wire threading hole 6 for the power supply line is provided on the switch housing 1, and the wires connecting the controller of the submersible electric pump 12 and the control board 2 pass through the wire threading hole 6. It should be noted that in order to ensure the sealing of the wire threading hole 6, in this embodiment, a sealing sleeve 7 is provided in the wire threading hole 6, and the outer wall of the sealing sleeve 7 is in contact with the inner wall of the wire threading hole 6, and the sealing sleeve 7 is sleeved on the outer wall of the wire. The gap between the wire and the switch housing 1 is sealed by the sealing sleeve 7 to prevent external water or impurities and dust from penetrating into the switch housing 1 from here, thereby ensuring the normal operation of the control board 2 and extending its service life. Preferably, the sealing sleeve 7 is made of rubber. Due to the good elasticity and sealing performance of rubber, it can better adapt to the wire threading hole 6 and effectively improve the stability and reliability of the structure.

[0028] The control panel 2 is provided with a sensing probe 3 for detecting the liquid level. In this embodiment, the sensing probe 3 is a liquid level sensor. The sensing probe 3 is electrically connected to the control panel 2. The sensing probe 3 transmits a signal to the control panel 2. The control panel 2 transmits a control signal to the controller of the submersible electric pump 12, so that the controller controls the start and stop of the submersible electric pump 12.

[0029] In this embodiment, the controller of the submersible electric pump 12 is electrically connected to the motor of the submersible electric pump 12 to control the start and stop of the submersible electric pump 12 .

[0030] It should be noted that when in use, the intelligent switch is placed at the bottom of the corresponding liquid level, and the sensing probe 3 faces the bottom of the liquid level. When the liquid level is reached, the sensing probe 3 transmits a signal to the control panel 2, and the control panel 2 transmits a control signal to the controller of the submersible electric pump 12. The controller controls the submersible electric pump 12 to start or shut down. It should be noted that the judgment of whether the liquid level is reached is made by the control panel 2 based on the comparison between the liquid level detected by the sensing probe 3 and the preset maximum and minimum liquid level values, thereby transmitting different control signals to the controller of the submersible electric pump 12.

[0031] A waterproof coating 11 is provided on the control board 2. The waterproof coating 11 is used to seal the control board 2 and the gap between the control board 2 and the switch housing 1, so as to prevent moisture from directly contacting the control board 2 and corroding the electronic components on the circuit board, and also prevent moisture from entering the switch housing 1 through the gap between the control board 2 and the switch housing 1. Preferably, the waterproof coating 11 is made of epoxy resin. Epoxy resin has good waterproof properties, and epoxy resin has good adhesion and corrosion resistance. It can fit tightly to the surface of the control board 2 and the switch housing 1, and can ensure that the electronic components on the control board 2 can work normally in a humid environment without being disturbed by moisture, which can effectively improve the stability and reliability of the smart switch.

[0032] A control system such as Figure 5As shown, the control system is applied to a submersible electric pump with an intelligent switch. The sensing probe 3 detects the liquid level and transmits a signal to the control board 2. The control board 2 receives the signal from the sensing probe 3 and converts it into a control signal and transmits it to the controller of the submersible electric pump 12. The controller is used to control the start and stop of the submersible electric pump 12.

[0033] The specific control process is as follows: Figure 6 As shown, as external water enters area A, when the liquid level in area A reaches a preset maximum value, the sensing probe 3 transmits a signal to the control board 2. The control board 2 receives the signal from the sensing probe 3 and converts it into a control signal. The control board 2 transmits the control signal to the controller of the submersible electric pump 12. The controller controls the submersible electric pump 12 to start, thereby pumping water out of area A. Therefore, the preset maximum value can be 0.5-1 cm. When a low liquid level of 0.5-1 cm is sensed, low liquid level pumping is achieved.

[0034] When the liquid level in area A decreases and does not reach the preset minimum value, the sensing probe 3 transmits a signal to the control board 2. The control board 2 receives the signal from the sensing probe 3 and converts it into a control signal. The control board 2 transmits the control signal to the controller of the submersible electric pump 12, and the controller controls the submersible electric pump 12 to stop.

[0035] It should be noted that this control system can be used for water circulation in fish tanks, that is, connecting area A with area B, so that water entering area B can flow back into area A, thereby realizing water circulation. Of course, it can also be used for drainage in basements and underground parking areas, that is, water is pumped out of area A and discharged to area B.

[0036] The specific embodiments described in this article are merely examples of the spirit of the present invention; technicians in the technical field of the present invention may make various modifications or additions to the described specific embodiments or replace them in a similar manner, but they will not deviate from the spirit of the present invention or exceed the scope defined by the attached claims.

Claims

1. A submersible electric pump with an intelligent switch, characterized in that: The invention comprises a submersible electric pump (12), a switch housing (1) and a control panel (2), wherein the control panel (2) is installed in the switch housing (1), the control panel (2) is connected to the controller signal of the submersible electric pump (12), the control panel (2) is provided with a sensing probe (3) for detecting the liquid level, the sensing probe (3) transmits a signal to the control panel (2), and the control panel (2) transmits a control signal to the controller of the submersible electric pump (12), so that the controller controls the submersible electric pump (12) ) is started or stopped, a waterproof coating (11) is provided on the control panel (2), and the waterproof coating (11) is used to seal the control panel (2) and the gap between the control panel (2) and the switch housing (1), the switch housing (1) is provided with a threading hole (6) for the power line to pass through, a sealing sleeve (7) is provided in the threading hole (6), the outer side wall of the sealing sleeve (7) is in contact with the inner side wall of the threading hole (6), and the sealing sleeve (7) is sleeved on the outer side wall of the wire.

2. The submersible electric pump with an intelligent switch according to claim 1, characterized in that: The inner side wall of the switch housing (1) is provided with a positioning groove (4), and the side wall of the control panel (2) is provided with a positioning protrusion (5), and the positioning protrusion (5) is inserted into the positioning groove (4).

3. The submersible electric pump with an intelligent switch according to claim 1, characterized in that: A plurality of support columns (8) for supporting the control panel (2) are provided in the switch housing (1).

4. The submersible electric pump with an intelligent switch according to claim 3, characterized in that: The control panel (2) is provided with a plurality of through holes (9), and a plurality of support columns (8) are provided with mounting holes (10), and the through holes (9) correspond to the mounting holes (10).

5. The submersible electric pump with an intelligent switch according to claim 1, characterized in that: The waterproof coating (11) is made of epoxy resin.

6. The submersible electric pump with an intelligent switch according to claim 1, characterized in that: The sealing sleeve (7) is made of rubber.

7. A control system applied to a submersible electric pump with an intelligent switch according to any one of claims 1 to 6, characterized in that: The sensing probe (3) detects the liquid level and transmits a signal to the control panel (2); the control panel (2) receives the signal from the sensing probe (3) and converts it into a control signal, which is then transmitted to the controller of the submersible electric pump (12); and the controller controls the start and stop of the submersible electric pump (12).

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