Water pump frequency converter with float switch

Abstract

The utility model discloses a water pump frequency converter with a float switch, which relates to the technical field of water pump frequency converters and comprises a water pump and a frequency converter with a control module. The water pump further comprises a floating ball switch which is placed in a water tank with a water inlet, the water pump pumps water into the water tank from the water inlet, and when the water level of the water tank reaches the highest point or the lowest point of the floating ball switch, the control module controls the frequency converter to stop or starts the water pump to work. The starting or stopping of the frequency converter is controlled through the floating ball switch, the frequency converter can work without manually pressing a starting or stopping key, that is, when the water level of the water tank reaches the highest point, the floating ball switch enables the frequency converter to stop the water pump from working; when the water level of the water tank drops to the lowest point, the float switch enables the frequency converter to start the water pump.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump frequency converters, in particular to a water pump frequency converter with a float switch. Background Art

[0002] Water pump inverters are used in: constant pressure water supply, fire fighting equipment, building water supply, environmental protection equipment, water treatment equipment, environmental engineering, etc., and have a very wide range of applications.

[0003] At present, water pump inverters require people to press the start or stop button to work, which is still very inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a water pump frequency converter with a float switch, so as to overcome the defect in the prior art that the water pump frequency converter needs a person to press a start or stop button before it can work.

[0005] In order to solve the above technical problems, the utility model provides a water pump inverter with a float switch, including a water pump and an inverter with a control module, wherein the inverter controls the operation of the water pump; it also includes a float switch, wherein the float switch is placed in a water tank with a water inlet, and the water pump draws water into the water tank from the water inlet. When the water level in the water tank reaches the highest point or the lowest point of the float switch, the control module controls the inverter to stop or start the water pump.

[0006] The float switch includes a float, in which a metal ball channel and a proximity switch are arranged. When the float rises or falls, the metal ball on the metal ball channel will roll, and the proximity switch will transmit a stop or start signal to the control module.

[0007] Wherein, a metal ball groove is arranged at one end of the metal ball channel.

[0008] Wherein, the proximity switch is connected to the control module via a cable.

[0009] Wherein, the metal ball is a steel ball.

[0010] Compared with the prior art, the beneficial effect of the utility model is that the start or stop of the inverter is controlled by the float switch, and the inverter can be operated without manually pressing the start or stop button. That is, when the water level in the water tank reaches the highest point, the float switch causes the inverter to stop the water pump; when the water level in the water tank drops to the lowest point, the float switch causes the inverter to start the water pump, which brings great convenience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a partial structural diagram of a water pump inverter with a float switch of the utility model;

[0012] Figure 2 yes Figure 1 Partial cross-sectional structural diagram of the float switch;

[0013] Figure 3 It is a schematic diagram of the principle of the float switch floating up or down. DETAILED DESCRIPTION

[0014] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0015] The water pump inverter of this embodiment is as follows Figure 1 , 2 3, including a water pump for pumping water (not shown in the figure), a frequency converter 1 with a control module, the frequency converter is used to control the operation of the water pump; also includes a float switch 2, the float switch is placed in a water tank 9 with a water inlet 10, the water pump pumps water into the water tank from the water inlet, when the water level in the water tank reaches the highest point of the float switch, the float switch sends a stop electrical signal to the control module, the control module automatically controls the frequency converter to stop the pumping work of the water pump; when the water level in the water tank reaches the lowest point of the float switch, the float switch sends an open electrical signal to the control module, the control module automatically controls the frequency converter to start the pumping work of the water pump.

[0016] The float switch of this embodiment includes a float 3, in which a metal ball channel 4 and a proximity switch 5 are provided. When the float rises or falls, the metal ball 6 on the metal ball channel will roll, and the proximity switch will transmit a stop or start signal to the control module. That is, when the water level in the water tank reaches the highest point of the float switch, the float rises, the metal ball on the metal ball channel will roll to the proximity switch, the proximity switch sends a stop electrical signal to the control module, and the water pump stops pumping water. When the water level in the water tank reaches the lowest point of the float switch, the float falls, the metal ball on the metal ball channel will roll away from the proximity switch, the proximity switch sends an start electrical signal to the control module, and the water pump starts pumping water. A metal ball groove 7 is provided at one end of the metal ball channel. The proximity switch is electrically connected to the control module through a cable 8. The metal ball described in this embodiment is a steel ball.

[0017] like Figure 3 As shown, assuming that the water level is at the lowest point, then the float (shown by the dotted line) is at the lowest point, the metal ball will roll away from the proximity switch, the proximity switch will send an open electrical signal to the control module, and the water pump will start pumping water. Assuming that the water level is at the highest point, then the float (shown by the solid line) is at the highest point, the metal ball will roll to the proximity switch, the proximity switch will send a stop electrical signal to the control module, and the water pump will stop pumping water.

[0018] This embodiment controls the start or stop of the inverter through the float switch, and the inverter can be operated without manually pressing the start or stop button. That is, when the water level in the water tank reaches the highest point, the float switch causes the inverter to stop the water pump; when the water level in the water tank drops to the lowest point, the float switch causes the inverter to start the water pump, which brings great convenience to the user.

[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A water pump inverter with a float switch, comprising a water pump and an inverter with a control module, wherein the inverter controls the operation of the water pump; the characteristics are: It also includes a float switch, which is placed in a water tank with a water inlet. The water pump draws water into the water tank from the water inlet. When the water level in the water tank reaches the highest point or the lowest point of the float switch, the control module controls the frequency converter to stop or start the water pump.

2. The water pump inverter with a float switch according to claim 1 is characterized in that: The float switch includes a float, a metal ball channel and a proximity switch are arranged in the float, when the float rises or falls, the metal ball on the metal ball channel rolls back and forth, and the proximity switch transmits a stop or start signal to the control module.

3. The water pump inverter with a float switch according to claim 2 is characterized in that: A metal ball groove is arranged at one end of the metal ball channel.

4. The water pump inverter with a float switch according to claim 3 is characterized in that: The proximity switch is connected to the control module via a cable.

5. The water pump inverter with a float switch according to any one of claims 2 to 4, characterized in that: The metal ball is a steel ball.

Images