Variable frequency controller special for digital integrated water pump

Abstract

The utility model discloses a digital integrated water pump special-purpose frequency conversion controller, comprising a housing, a touch screen arranged on the housing and a PCB arranged in the housing, the PCB is provided with an RS485 communication connection end, a DI connection end, a DO connection end and a memory, the edge ends of the RS485 communication connection end, the DI connection end and the DO connection end close to the PCB are all provided with joints, and the joints are connected with the memory. An elastic piece is arranged at the end, away from the PCB, of the connector, an LED lamp connected with the elastic piece is arranged on the connector and used for displaying the circuit connection state of the multiple water pumps and the controller, and the connector comprises a locking block, a locking bolt spirally arranged on the locking block and a spring arranged in the locking block and connected with the locking bolt. And the end part of the spring is connected with the elastic sheet. The variable-frequency controller special for the water pumps can be connected with a plurality of water pumps in a high-integration mode, the circuit states of the connected water pumps are displayed, the controller and the water pumps can be conveniently installed, and digital integration of the water pumps is achieved.

Description

Technical Field

[0001] The utility model relates to a water pump frequency conversion controller, in particular to a special frequency conversion controller for a digital integrated water pump. Background Art

[0002] A water pump variable frequency controller is an electronic device used to regulate water pump speed. It synchronizes the power supply frequency with the pump motor frequency to adjust the pump's water flow rate and pressure. By reducing or increasing the power supply frequency, the variable frequency controller controls the pump's flow rate, thereby improving energy efficiency and saving energy. Applications include constant pressure water supply, firefighting equipment, building water supply, environmental protection equipment, water treatment equipment, and environmental engineering.

[0003] Currently, when water pumps are used to control water flow at multiple delivery points, multiple water pump variable frequency controllers are used in conjunction with multiple water pumps to achieve water flow regulation. During use, workers need to operate the water pump variable frequency controllers at different locations separately. By pressing different function buttons on the controller, the PCB board in the controller calculates and judges the input signal, and then outputs a signal based on the processing result to adjust the water flow of the water pump. However, this type of water pump variable frequency controller is not convenient for connecting with multiple water pumps and has low integration and editability. For these reasons, it is necessary to design a variable frequency controller that can be easily connected with multiple water pumps and can be digitally integrated and edited. Utility Model Content

[0004] In view of the above problems existing in the prior art, the purpose of the present invention is to provide a digital integrated water pump dedicated frequency conversion controller, which realizes the digital editing and control of multiple water pumps and can quickly control the water flow of water pumps at different positions.

[0005] To achieve the above purpose, the technical solution of this utility model is as follows:

[0006] A digital integrated water pump dedicated frequency conversion controller includes a housing, a touch screen arranged on the housing, and a PCB board arranged in the housing. The PCB board is provided with an RS485 communication connection terminal, a DI connection terminal, a DO connection terminal and a memory. The RS485 communication connection terminal, the DI connection terminal and the DO connection terminal are all provided with connectors near the edge ends of the PCB board. The end of the connector away from the PCB board is provided with an elastic sheet. The connector is provided with an LED light connected to the elastic sheet for displaying the circuit connection status of multiple water pumps and the controller.

[0007] Preferably, the connector includes a locking block, a locking bolt spirally arranged on the locking block, a spring arranged in the locking block and connected to the locking bolt, and an end of the spring is connected to the elastic sheet.

[0008] Preferably, the elastic sheet is made of a conductive material and has an L-shaped structure. One end of the elastic sheet is arranged in parallel in the locking block and is vertically connected to the spring.

[0009] Preferably, the PCB board is provided with a photoelectric isolator connected to a plurality of RS485 communication connection terminals.

[0010] Preferably, an optical coupler isolator connected to a plurality of DI connection terminals is provided on the PCB board.

[0011] Preferably, a relay connected to a plurality of DO connection terminals is provided on the PCB board.

[0012] Preferably, an IC socket connected to a plurality of memories is provided on the PCB board, and the memories are pluggable and arranged on the IC socket.

[0013] Preferably, it further includes a power input terminal, and a battery connected to the power input terminal is provided on the PCB board.

[0014] Compared to existing technologies, the digital integrated water pump dedicated variable frequency controller provided by this utility model can connect to multiple water pumps simultaneously, display the connection status of multiple water pumps, and integrate and edit multiple water pumps. Specifically, by providing connectors at each connection end on the PCB board, the controller can use the elastic sheet on the connector to quickly connect the data lines of multiple water pumps, so that the LED light can intuitively display the connection status of the circuit, facilitate the connection of multiple water pumps with the variable frequency controller, and provide conditions for the controller to perform variable frequency control of multiple water pumps. The entire process is convenient and fast, which is very beneficial for the digital integrated control of multiple water pumps by the controller.

[0015] It should be understood that the general description and detailed description herein are exemplary and explanatory only and are not intended to restrict the present disclosure.

[0016] This application document provides various implementations or exemplary overviews of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the digital integrated water pump dedicated frequency conversion controller of the utility model;

[0018] Figure 2 This is an exploded diagram of the structure of the digital integrated water pump dedicated frequency conversion controller of the utility model;

[0019] Figure 3 This is a structural diagram of a portion of a PCB board in a digital integrated water pump dedicated frequency conversion controller of the present utility model;

[0020] Figure 4 This is a structural diagram of another part of the PCB board in the digital integrated water pump dedicated frequency conversion controller of the utility model;

[0021] Figure 5 This is a structural sectional view of the interface in the digital integrated water pump dedicated frequency conversion controller of the utility model.

[0022] Main reference numerals:

[0023] 1. Housing; 11. Touch screen; 12. PCB board; 121. RS485 communication connector; 122. DI connector; 123. DO connector; 124. Memory; 21. Optoisolator; 22. Optocoupler isolator; 23. Relay; 24. IC socket; 3. Battery; 5. Connector; 51. Locking bolt; 52. Spring; 53. Elastic sheet; 54. LED light. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the embodiments of the present disclosure are described in more detail below in conjunction with the drawings of the embodiments. Note: The described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0025] As attached Figure 1 and attached Figure 2As shown, the variable frequency controller for a digital integrated water pump proposed in the present invention applies the variable frequency controller technology of existing water pumps. The controller includes a housing 1 as a main body. A touch screen 11 is provided on one side of the housing 1. The touch screen 11 provided on the existing controller is used as the signal input terminal and the control terminal. The PCB board 12 is provided with an RS485 communication connection terminal 121, a DI connection terminal 122, a DO connection terminal 123 and a memory 124; the surface of the PCB board 12 is covered with a three-conformal paint to achieve temperature protection of the circuit board; the RS485 communication connection terminal 121 is the connection terminal for the communication signal on the controller; the DI connection terminal 122 is the input terminal of the controller; the DO connection terminal 123 is the output terminal of the controller; and the memory 124 can store various system parameters, operation content and fault records. The operation content and fault records can be viewed at any time, and the system parameter storage can help customers quickly complete system parameter settings and modifications; when the frequency converter is connected to multiple water pumps, a connector 5 is provided at the edge of the RS485 communication connection terminal 121, the DI connection terminal 122 and the DO connection terminal 123 near the PCB board 12, and an elastic sheet 53 is provided at the end of the connector 5 away from the PCB board 12. An LED light 54 connected to the elastic sheet 53 is provided on the connector 5 to display the circuit connection status of the multiple water pumps and the controller. When multiple external water pumps are connected to the controller, the end of the water pump's data cable will be inserted between the elastic sheet 53 and the connector 5. The end can be limited on the connector 5 through the elastic squeezing of the elastic sheet 53. When the installed water pump is connected to the power supply, the LED light 54 and the connecting circuit between the PCB board 12 and the data cable can light up the LED light 54. Otherwise, the LED light 54 will not light up, and the power-on status of the connecting circuit can be obtained, which makes it convenient for the controller to quickly and intuitively grasp the connection status of multiple water pumps, and then control the frequency conversion use of multiple water pumps, which makes it convenient for the controller to digitally integrate and edit multiple water pumps.

[0026] In order to facilitate the connection between the controller and multiple water pumps, such as Figure 5 As shown, the connector 5 can be configured as a clamping structure, wherein the connector 5 includes a locking block, a locking bolt 51 spirally mounted on the locking block, a spring 52 disposed in the locking block and connected to the locking bolt 51, and the end of the spring 52 is connected to an elastic sheet 53. When connecting an external data cable to the connector 5, the end of the data cable is first passed through between the locking block and the elastic sheet 53, and the conductive end of the data cable is connected to the conductive elastic sheet 53 of the connector 5. The data cable is squeezed between the locking block and the elastic sheet 53, causing the spring to deform, driving the elastic sheet 53 to retain the end of the data cable in the locking block. The locking bolt 51 is then screwed onto the elastic sheet 53 to increase the connection security between the data cable and the locking block.

[0027] Furthermore, if Figure 5As shown, the elastic sheet 53 can be made of a conductive material and arranged in an L-shaped structure, with one end of the elastic sheet 53 arranged parallel to the locking block, and the spring 52 connected perpendicularly to the elastic sheet 53. When repairing the controller, the conductive material of the elastic sheet 53 allows the lighting status of the LED light 54 to be easily detected to determine whether the circuit is normal, facilitating maintenance of the controller and facilitating quick installation of the PCB board 12 when it is powered on, ensuring installation quality, and facilitating the integrated control of multiple water pumps by the controller.

[0028] PCB board 12 is equipped with multiple RS485 communication terminals 121, DI terminals 122, DO terminals 123, and memory 124, making it convenient for the controller to connect to multiple water pumps simultaneously, reducing the application cost of PCB board 12 and PLC. The control chips of multiple water pumps can be integrated on a single PCB board 12, reducing costs. The optocoupler isolators 21 connected to the side of the multiple RS485 communication terminals 121 on the PCB board 12 can effectively prevent the impact of external high voltage, lightning strikes, common ground interference, etc. on the communication system, improving the anti-interference capability of the communication port. The optocoupler isolators 22 connected to the side of the multiple DI terminals 122 can achieve electrical isolation between circuits, improving the stability and safety of the system. The relays 23 connected to the side of the multiple DO terminals 123 can reduce the impact of faults such as short circuits at the end of on-site cable connections on the system, improving the stability and reliability of the system and adapting to a wider range of load requirements. By using the IC socket 24 to flexibly connect multiple memories 124 of different specifications, system parameters, operating status, and fault records can be stored, and operating status and fault records can be viewed at any time, helping customers quickly complete system parameter settings and modifications. The memory 124 can be a 30KB program memory 124, a 20KB data memory 124, and a 10KB retentive memory 124.

[0029] Furthermore, to enable flexible control of multiple water pumps via touch screen 11, the controller utilizes the existing microcontroller configuration on PCB 12. This integration of the controller's touch technology, pump control technology, wireless communication, and host computer monitoring technology facilitates the integration of the controller's touch technology. By utilizing the STC89C52 microcontroller and integrating the existing controller with touch screen 11, the controller can configure the microcontroller's system based on customer needs and pre-set matching solutions on touch screen 11, enabling customers to control water pumps at different locations and regulate water flow.

[0030] In order to facilitate the controller to control multiple water pumps, such as Figure 3As shown, a battery 3 connected to the power input terminal can be provided on the PCB board 12. A power storage structure can be added to the controller to facilitate timely storage of operating content and fault records when the controller is powered off or short-circuited, avoiding data loss. This allows the water pump to still control the water flow, facilitates timely maintenance and supply by customers, facilitates the re-supply of power, and facilitates the precise installation of the water pump data cable and the controller.

[0031] Of course, the above is 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 principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A digital integrated water pump dedicated frequency conversion controller, comprising a housing (1), a touch screen (11) arranged on the housing (1), and a PCB board (12) arranged in the housing (1), wherein the PCB board (12) is provided with an RS485 communication connection terminal (121), a DI connection terminal (122), a DO connection terminal (123) and a memory (124), characterized in that: The RS485 communication connection terminal (121), the DI connection terminal (122), and the DO connection terminal (123) are all provided with connectors (5) at the edge ends close to the PCB board (12); an elastic sheet (53) is provided at one end of the connector (5) away from the PCB board (12); and an LED light (54) connected to the elastic sheet (53) is provided on the connector (5) for displaying the circuit connection status of the multiple water pumps and the controller.

2. The digital integrated water pump dedicated frequency conversion controller according to claim 1, characterized in that: The joint (5) comprises a locking block, a locking bolt (51) screwed onto the locking block, and a spring (52) disposed in the locking block and connected to the locking bolt (51), wherein the end of the spring (52) is connected to an elastic sheet (53).

3. The digital integrated water pump dedicated frequency conversion controller according to claim 2, characterized in that: The elastic sheet (53) is made of a conductive material and has an L-shaped structure. One end of the elastic sheet (53) is arranged in parallel in the locking block and is vertically connected to the spring (52).

4. The digital integrated water pump dedicated frequency conversion controller according to claim 1, characterized in that: The number of the RS485 communication connection terminal (121), the DI connection terminal (122), the DO connection terminal (123) and the memory (124) is multiple, and the PCB board (12) is provided with a photoelectric isolator (21) connected to the multiple RS485 communication connection terminals (121).

5. The digital integrated water pump dedicated frequency conversion controller according to claim 4, characterized in that: An optical coupler isolator (22) connected to a plurality of DI connection terminals (122) is provided on the PCB board (12).

6. The digital integrated water pump dedicated frequency conversion controller according to claim 5, characterized in that: The PCB board (12) is provided with a relay (23) connected to a plurality of DO connection terminals (123).

7. The digital integrated water pump dedicated frequency conversion controller according to claim 6, characterized in that: An IC socket (24) connected to a plurality of memories (124) is provided on the PCB board (12), and the memories (124) are pluggably provided on the IC socket (24).

8. The digital integrated water pump dedicated frequency conversion controller according to claim 7, characterized in that: It also includes a power input terminal, and a battery (3) connected to the power input terminal is provided on the PCB board (12).

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