CN204517463U - A kind of lithium battery exchanges irrigation pump - Google Patents

Abstract

The utility model discloses a lithium battery AC irrigation water pump, which comprises a lithium battery pack, an inverter and an AC water pump. The lithium battery pack is composed of multiple sets of lithium battery packs connected in series, and each set of lithium battery packs is composed of a plurality of monomers Lithium batteries are connected in parallel; the power output end of the lithium battery pack is connected to the input end of the inverter, and the output end of the inverter is connected to the power input end of the AC water pump. The utility model can use the supporting lithium battery pack to provide electric energy to drive the AC water pump to work, has the advantages of being flexible, light, and easy to move, and can effectively solve the problem of inconvenient irrigation in existing rural areas due to scattered locations of motor wells and being far away from power distribution rooms or metering rooms , At the same time, it can greatly reduce the investment cost compared to building a power distribution room or metering room and laying transmission lines alone.

Description

A Lithium Battery AC Irrigation Water Pump

technical field

The utility model relates to a water pump, in particular to a lithium battery AC irrigation water pump.

Background technique

The "Electricization of Farmland Mechanized Wells" project is a new project to benefit farmers. The project adopts the power supply mode of "one well and one line, one meter and multiple cards". From the volt line to the machine well, the metering device for each outgoing line is installed in the power distribution room, and the electronic prepaid energy meter is used to input electricity for the user's IC card, realizing the use of one line, one meter and multiple cards. When watering the ground, farmers only need to scan the meter with an IC card, and the power will be connected. However, in some remote rural areas, some motor wells are scattered and far away from the power distribution room or metering room. It takes a lot of investment to build a power distribution room or metering room and lay transmission lines for these motor wells alone, and the utilization rate is very low, which will lead to Great waste.

Utility model content

The purpose of this utility model is to provide a lithium battery AC irrigation water pump, which can use the supporting lithium battery pack to provide electric energy to drive the AC water pump to work. The problem of inconvenient irrigation caused by the power distribution room or metering room, and compared with building a power distribution room or metering room separately and laying transmission lines, can greatly reduce the investment cost.

The utility model adopts the following technical solutions:

A lithium battery AC irrigation water pump, including a lithium battery pack, an inverter and an AC water pump, the lithium battery pack is composed of multiple sets of lithium battery packs connected in series, and each set of lithium battery packs is composed of multiple single lithium batteries connected in parallel ; The power output end of the lithium battery pack is connected to the input end of the inverter, and the output end of the inverter is connected to the power input end of the AC water pump.

The lithium battery pack adopts a battery protection board with passive equalization function, and an insulating resin layer is arranged between the battery protection board and the tabs of the lithium battery pack.

The lithium battery pack includes a lithium battery pack casing, and the single lithium batteries are arranged in the lithium battery pack casing, and the multiple single lithium batteries in each group of lithium battery pack casings are connected in parallel through mechanical connection, and the multiple sets of lithium battery packs are connected in parallel. The positive output terminals of the battery protection board are respectively connected to the positive input terminal of the battery protection board through the battery series board, the negative poles of multiple groups of lithium battery packs are respectively connected to the negative terminal Connect the positive and negative input terminals of the inverter with the cable; an insulating layer is provided between the battery series board and the battery protection board.

A shock-absorbing belt is arranged between the inner side of the lithium battery pack casing and the single lithium battery.

It also includes a receiving control system. The receiving control system includes a controller and a wireless receiving module. The controller is connected to the AC water pump control relay through the relay control circuit; the contact of the AC water pump control relay is set at the output end of the inverter On the line between the power input end of the AC water pump; the signal output end of the wireless receiving module is connected to the signal input end of the controller.

The wireless receiving module adopts a GPRS communication module.

The lithium battery pack is arranged in the lithium battery pack housing, the outer surface of the lithium battery pack housing is provided with a waterproof layer, and the inner surface of the lithium battery pack is provided with a shock-absorbing belt.

The shock-absorbing belt adopts EVA structure double-sided adhesive tape.

The output voltage of the lithium battery pack is 48V, the battery capacity of the lithium battery pack is 54 Ah～60Ah, and the lithium battery pack is composed of 16 lithium battery packs connected in series.

The battery capacity of the single lithium battery is 18 Ah to 20 Ah.

The utility model uses the lithium battery pack to provide electric energy for the AC water pump, uses an inverter to convert the direct current output by the lithium battery pack into AC power for use by the AC water pump, and can freely use the AC water pump in the absence of commercial power to realize irrigation of farmland . The utility model has the advantages of being flexible, light, and easy to move, and can effectively solve the problem of inconvenient irrigation in the existing rural areas due to the scattered location of the wells and being far away from the power distribution room or metering room; at the same time, the lithium battery pack also has the function of repeated use. Compared with building a power distribution room or metering room separately and laying transmission lines, it can greatly reduce the investment cost.

Description of drawings

Fig. 1 is a functional block diagram of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:

As shown in Figure 1, the lithium battery AC irrigation water pump described in the utility model includes a lithium battery pack 1, an inverter 2 and an AC water pump 3, and the lithium battery pack 1 is used to provide electric energy for the AC water pump 3, and the inverter The converter 2 is used to convert the direct current output by the lithium battery pack 1 into alternating current for use by the alternating current water pump 3 . The lithium battery pack 1 is composed of multiple sets of lithium battery packs 4 connected in series, and each set of lithium battery packs 4 is formed by connecting multiple single lithium batteries 5 in parallel; the power output end of the lithium battery pack 1 is connected to the input end of the inverter 2, and the reverse The output end of the transformer 2 is connected to the power input end of the AC water pump 3 .

In the utility model, the lithium battery pack 1 is composed of 16 lithium battery packs 4 connected in series. In order to be easy to carry and move, the lithium battery pack 1 is arranged in the lithium battery pack housing, and the outer surface of the lithium battery pack housing is provided with a waterproof layer. 1 The inner surface is provided with a shock-absorbing belt. The shock-absorbing belt can be double-sided adhesive tape with EVA structure, which can not only play a shock-absorbing role, but also can play a fixing role for multiple lithium battery packs 4 . The output voltage of the lithium battery pack 1 is 48V, and the battery capacity of the lithium battery pack 1 is 54 Ah～60Ah. The lithium battery pack 4 includes a lithium battery pack housing, and the single lithium battery 5 is arranged in the lithium battery pack housing, and the battery capacity of the single lithium battery 5 is 18 Ah to 20 Ah. A plurality of single lithium batteries 5 in each group of lithium battery pack casings are connected in parallel through a mechanical connection method, which refers to punching holes in the middle of the tabs of the single lithium batteries 5 and then connecting them with bolts. A shock-absorbing belt is provided between the inner side of the lithium battery pack shell and the single lithium battery 5, and the shock-absorbing belt can be double-sided tape with EVA structure, which can not only play a role in shock absorption, but also protect the single lithium battery 5. The fixing effect of the single lithium battery 5 is avoided to cause circuit interruption due to shaking. The positive output ends of multiple sets of lithium battery packs 4 are respectively connected to the positive input ends of the battery protection board 7 through the battery series plate 6, and the negative poles of the multiple sets of lithium battery packs 4 are respectively connected to the negative input ends of the battery protection plate 7 through the battery series plate. The positive and negative output ends of the protection board 7 are connected to the positive and negative input ends of the inverter 2 through cables; an insulating isolation layer is arranged between the battery series plate 6 and the battery protection board 7, and the insulating isolation layer can be 1mm- 2mm insulating resin board 8 .

The lithium battery pack 1 adopts a battery protection board 7 with passive equalization functions, including battery overvoltage protection, undervoltage protection, overcurrent protection, short circuit protection and equalization functions. An insulating resin layer is provided between the battery protection plate 7 and the tab of the lithium battery pack 1 .

In the utility model, the inverter 2 has an AC-DC conversion function and a voltage boosting function, and the parameters of the inverter 2 are 48V DC to 220V AC, and the power is 5kW. The AC water pump 3 is connected to the lithium battery pack 1 through the inverter 2. The working parameters of the AC water pump 3 are: power 1.1kW; working voltage 220VAC; head 18m; flow rate 10 m3/h.

In order to further improve the remote control function, the utility model is also provided with a receiving control system. The receiving control system includes a controller 9 and a wireless receiving module 10. The controller 9 is connected to an AC water pump control relay through a relay control circuit; The contact 11 of the AC water pump control relay is set on the line between the output end of the inverter 2 and the power input end of the AC water pump 3 ; the signal output end of the wireless receiving module 10 is connected to the signal input end of the controller 9 . The wireless receiving module 10 may adopt a GPRS communication module.

The receiving control system in the utility model is used to receive the control command sent by the remote control center, and the controller 9 controls the start and stop of the AC water pump 3 according to the received control command. When the controller 9 controls the AC water pump control relay coil 12 to be energized, the contact 11 of the AC water pump control relay on the line between the output end of the inverter 2 and the power input end of the AC water pump 3 is closed, and the AC water pump 3 When the controller 9 controls the AC water pump control relay coil 12 to lose power, the contact 11 of the AC water pump control relay on the line between the output end of the inverter 2 and the power input end of the AC water pump 3 is disconnected. open, the AC water pump 3 is powered off and stops working. The above-mentioned control method belongs to the conventional technology in the field of electric appliance control, and does not involve the improvement of the software method.

For the consideration of environmental protection and cost saving, the single lithium battery 5 in the utility model can adopt the decommissioned power lithium battery of the electric vehicle. Due to the high performance requirements of electric vehicles on the power battery, when the capacity of the power battery drops to a certain level, in order to ensure the power performance, mileage and safety performance of the electric vehicle, the power battery must be replaced. The decommissioned power lithium battery replaced from the electric vehicle still has a high remaining capacity. Therefore, the decommissioned power lithium batteries are screened and reassembled after appearance, voltage, internal resistance and capacity, and some decommissioned power lithium batteries can be used in occasions with relatively good working conditions and relatively low battery performance requirements, such as AC irrigation pumps etc., in order to realize the cascade utilization of power batteries.

Claims (10)

1. A lithium battery AC irrigation water pump, characterized in that: it comprises a lithium battery pack, an inverter and an AC water pump, the lithium battery pack is composed of multiple groups of lithium battery packs connected in series, and each group of lithium battery packs is composed of a plurality of single Lithium batteries are connected in parallel; the output end of the lithium battery pack is connected to the input end of the inverter, and the output end of the inverter is connected to the power input end of the AC water pump. 2. The lithium battery AC irrigation water pump according to claim 1, characterized in that: the lithium battery pack adopts a battery protection board with a passive equalization function, and an insulating resin is arranged between the battery protection board and the tabs of the lithium battery pack layer. 3. The lithium battery AC irrigation water pump according to claim 1 or 2, characterized in that: the lithium battery pack includes a lithium battery pack casing, the single lithium battery is arranged in the lithium battery pack casing, and each group of lithium batteries Multiple single lithium batteries in the package body are connected in parallel through mechanical connection. The positive output terminals of multiple lithium battery packs are respectively connected to the positive input terminals of the battery protection board through the battery series plate, and the negative poles of multiple lithium battery packs are respectively connected in series through batteries. The board is connected to the negative input terminal of the battery protection board, and the positive and negative output terminals of the battery protection board are connected to the positive and negative input terminals of the inverter through cables; an insulating isolation layer is provided between the battery series board and the battery protection board. 4. The lithium battery AC irrigation water pump according to claim 3, characterized in that: a shock-absorbing belt is arranged between the inner side of the lithium battery pack casing and the single lithium battery. 5. The lithium battery AC irrigation water pump according to claim 4, characterized in that: it also includes a receiving control system, the receiving control system includes a controller and a wireless receiving module, and the controller controls the connection through a relay control circuit The AC water pump control relay; the contacts of the AC water pump control relay are set on the line between the inverter output end and the AC water pump power input end; the signal output end of the wireless receiving module is connected to the signal input end of the controller. 6. The lithium battery AC irrigation water pump according to claim 5, wherein the wireless receiving module adopts a GPRS communication module. 7. The lithium battery AC irrigation water pump according to claim 6, characterized in that: the lithium battery pack is arranged in the lithium battery pack housing, the outer surface of the lithium battery pack housing is provided with a waterproof layer, and the inner surface of the lithium battery pack is provided with With shock absorber. 8. The lithium battery AC irrigation water pump according to claim 7, characterized in that: the shock-absorbing belt adopts EVA structure double-sided tape. 9. The lithium battery AC irrigation water pump according to claim 8, characterized in that: the output voltage of the lithium battery pack is 48V, the battery capacity of the lithium battery pack is 54 Ah～60Ah, and the lithium battery pack is composed of 16 lithium The battery packs are connected in series. 10. The lithium battery AC irrigation water pump according to claim 9, characterized in that: the battery capacity of the single lithium battery is 18 Ah-20 Ah.