Integrated acid recycling adapter

Abstract

The utility model discloses an integrated acid circulation plug connector, including the acid inlet pipeline, the acid inlet pipeline includes the acid inlet main pipe, and along the acid inlet main pipe length direction interval's multiple acid inlet branch pipes no.

Description

Technical Field

[0001] This utility model belongs to the field of lead-acid battery technology, and in particular relates to an integrated acid cycle connector. Background Technology

[0002] Lead-acid batteries can be charged by acid cycling, which allows control of acid density and temperature during the charging process. This charging method is highly efficient, produces good battery consistency, and reduces corrosion of the battery's positive electrode during charging. The acid cycling connector serves as a bridge between the acid cycling equipment and the battery, and regulates the electrolyte density of the battery during charging by introducing and returning acid.

[0003] Most of the acid cycle connectors used in the existing technology are single-hole type, that is, one connector is connected to one injection hole. For lead-acid batteries with multiple injection holes, multiple connectors need to be connected for acid cycle charging, which greatly increases the overall preparation time and seriously affects the production line cycle time or on-site maintenance efficiency. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution: This utility model provides an integrated acid circulation connector, comprising: The acid inlet pipeline includes a main acid inlet pipe and a plurality of branch acid inlets spaced apart along the length of the main acid inlet pipe, all of which are connected to the main acid inlet pipe. The acid return pipeline includes a main acid return pipe and a plurality of acid return branch pipes spaced apart along the length of the main acid return pipe, and the plurality of acid return branch pipes are all connected to the main acid return pipe. The connectors are arranged at intervals, and each connector is provided with an acid inlet branch pipe 2 and an acid return branch pipe 2 that are respectively connected to the acid inlet branch pipe 1 and the acid return branch pipe 1.

[0005] Multiple connectors are inserted into multiple electrolyte filling holes of the battery. Multiple acid inlet branch pipes 1 of the acid inlet pipeline cooperate with multiple acid inlet branch pipes 2 of the connector to add acid. Multiple acid return branch pipes 1 of the acid return pipeline cooperate with multiple acid return branch pipes 2 of the connector to return acid.

[0006] As a preferred embodiment of the above technical solution, a telescopic pipe is provided on both the main acid inlet pipe and the main acid return pipe at a position between adjacent acid inlet branches.

[0007] As a preferred embodiment of the above technical solution, it further includes a bracket, which covers the outside of the acid inlet pipe and the acid return pipe and has an opening at its bottom. The acid inlet pipe is led out from one side of the bracket, and the acid return pipe is led out from the other opposite side of the bracket.

[0008] As a preferred embodiment of the above technical solution, both the acid inlet main pipe and the acid return main pipe are connected to an acid delivery pipe after being led out from the support, and each acid delivery pipe is equipped with a pressure alarm.

[0009] As a preferred embodiment of the above technical solution, a spring piece is also provided on the outside of the connector, and a locking block is provided on the spring piece. After the connector is inserted into the injection hole, the locking block is engaged with the locking groove on the inner side wall of the injection hole.

[0010] The beneficial effects of this utility model are as follows: (1) This utility model adopts an integrated design to integrate multiple acid addition and return channels into the same device, including multiple acid inlet branch pipes and return branch pipes, and multiple spaced plugs to achieve simultaneous connection of multiple battery filling holes in a single operation. This avoids the cumbersome process of installing each traditional single-hole plug, greatly shortens the system preparation time, and effectively improves the production line cycle time and on-site maintenance efficiency.

[0011] (2) This utility model also monitors the pipeline pressure status in real time during the acid inlet and return process by installing pressure alarms on the acid inlet and return sides. When the pipeline is blocked or leaked, causing the pressure to exceed the normal range, it can issue an audible and visual alarm signal in time to remind the operator to check the fault, which further improves the safety, controllability and intelligence level of the acid circulation process. Attached Figure Description

[0012] Figure 1 The diagram shown is a schematic of the acid circulation connector being connected to the circulation system in the embodiment. Figure 2 The diagram shown is a structural schematic of the acid circulation connector in the embodiment; Figure 3 The diagram shown is a schematic of the acid inlet pipeline in the embodiment; Figure 4 The diagram shown is a schematic of the connector in the embodiment; Attached reference numerals: 1. Battery; 2. Acid inlet tank; 3. Acid return tank; 10. Main acid inlet pipe; 11. Acid inlet branch pipe 1; 12. Telescopic pipe; 20. Main acid return pipe; 21. Acid return branch pipe 1; 30. Connector; 31. Acid inlet branch pipe 2; 32. Acid return branch pipe 2; 33. Spring; 34. Clamp; 40. Bracket; 50. Pressure alarm. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0014] Example like Figure 1As shown, Figure 1 The diagram shown illustrates the connection of the acid circulation connector to the circulation system in this embodiment.

[0015] The acid circulation system connected to this device includes: battery 1, acid inlet tank 2, and acid return tank 3.

[0016] When connecting this device, first place the batteries 1 in series to ensure that the polarity of the batteries 1 is consistent. Then, connect a certain number of batteries 1 in series with the positive and negative terminals connected by connecting wires. Next, connect the positive and negative terminals of the battery pack to the positive and negative output lines of the charger. Finally, install this device at the battery filling hole. This device connects the acid inlet tank 2 to the battery 1 and the acid return tank 3 to the battery 1, realizing the addition and return of acid to the battery pack.

[0017] like Figure 2 As shown, Figure 2 The diagram shown is a structural schematic of the acid circulation connector in the embodiment; This device includes: The acid inlet pipeline includes a main acid inlet pipe 10 and a plurality of acid inlet branch pipes 11 spaced apart along the length of the main acid inlet pipe 10. The plurality of acid inlet branch pipes 11 are all connected to the main acid inlet pipe 10. The acid return pipeline includes a main acid return pipe 20 and multiple acid return branch pipes 21 spaced along the length of the main acid return pipe 20. All multiple acid return branch pipes 21 are connected to the main acid return pipe 20. Connector 30, multiple connectors 30 are arranged at intervals, and connector 30 is provided with an acid inlet branch pipe 21 and an acid return branch pipe 22 respectively connected to the acid inlet branch pipe 11 and the acid return branch pipe 21.

[0018] Multiple connectors 30 are inserted into multiple liquid injection holes of battery 1 respectively. Multiple acid inlet branch pipes 11 of the acid inlet pipeline cooperate with multiple acid inlet branch pipes 31 of connector 30 to add acid. Multiple acid return branch pipes 21 of the acid return pipeline cooperate with multiple acid return branch pipes 32 of connector 30 to return acid.

[0019] The acid inlet pipe and the acid return pipe are the main channels for acid delivery and acid return, respectively. One end of the acid inlet pipe is connected to the battery 1 through the connector 30, and the other end is connected to the acid inlet tank 2. One end of the acid return pipe is connected to the battery 1 through the connector 30, and the other end is connected to the acid return tank 3. Specifically, the main acid inlet pipe 10 and the main acid return pipe 20 are both made of corrosion-resistant hard pipes, while the multiple acid inlet branch pipes 11 and the multiple acid return branch pipes 21 can be made of flexible hoses.

[0020] Each connector 30 has an acid inlet branch pipe 31 and an acid return branch pipe 32, which are two internally independent channels that communicate with the inner cavity of the connector 30. After the connector 30 is inserted into the liquid injection port, the two channels communicate with the inside of the battery 1.

[0021] like Figure 2 , Figure 3 As shown, Figure 2 The diagram shown is a structural schematic of the acid circulation connector in the embodiment; Figure 3 The diagram shown is a schematic of the acid inlet pipeline in the embodiment; Telescopic pipes 12 are installed on the main acid inlet pipe 10 at a section between adjacent acid inlet branch pipes 11 and on the main acid return pipe 20 at a section between adjacent acid return branch pipes 21.

[0022] Specifically, the telescopic tube 12 can adopt a corrugated tube structure (such as PVC corrugated tube, PP spiral hose or silicone telescopic sleeve), which has good acid corrosion resistance, elastic recovery ability and sealing performance. Through the telescopic tube 12, when there are slight differences or inconsistencies in the spacing between the liquid injection holes of the battery 1, the distance between adjacent branches can be flexibly adjusted by stretching or compressing the telescopic tube 12, so that the connector 30 is accurately aligned with the liquid injection hole, thereby adapting to batteries of different specifications and enhancing versatility.

[0023] It also includes a bracket 40, which covers the outside of the acid inlet pipe 10 and the acid return pipe 20 and has an opening at the bottom. The acid inlet pipe 10 is led out from one side of the bracket 40, and the acid return pipe 20 is led out from the other opposite side of the bracket 40. Both of them are connected to an acid delivery pipe after they are led out, and a pressure alarm 50 is installed on the acid delivery pipe.

[0024] The bracket 40 provides physical support and overall positioning for the acid inlet and return pipelines; Pressure alarms 50 are installed on the acid inlet and return sides of the acid delivery pipe, respectively, and can monitor the pipeline pressure status in real time during the acid delivery process. During normal acid circulation and charging, the pressure fluctuates between 10-40 kPa. The pressure adjustment range of the pressure alarm 50 is 8-42 kPa. If the set value is exceeded, an alarm will be triggered to ensure that blockage problems can be detected in time.

[0025] like Figure 4 As shown, Figure 4 The diagram shown is a schematic of the connector in the embodiment; A spring piece 33 is also provided on the outside of the connector 30, and a locking block 34 is provided on the spring piece 33. After the connector 30 is inserted into the injection hole, the locking block 34 is engaged with the locking groove on the inner side wall of the injection hole.

[0026] Specifically, the spring sheet 33 is symmetrically arranged on the outer wall of the connector 30, extends axially, and has elastic deformation capability. It can be made of metal spring sheet (such as stainless steel) or elastic plastic (such as nylon, POM), and has good resilience and corrosion resistance. The locking block 34 is arranged on the outer side of the spring sheet 33 and is protruding (such as hemispherical, trapezoidal or hook-shaped) to mechanically engage with the locking groove on the inner wall of the injection hole to form a mechanical limit and prevent the connector 30 from accidentally coming out during acid addition or acid return.

[0027] Furthermore, an O-ring is provided on the connector 30 to maintain good sealing during the insertion process.

[0028] In this embodiment, the specific connection method between the pipes can be achieved by using existing technologies such as quick-connect fittings, threaded connections, or clamp connections, which will not be elaborated here.

[0029] Working principle: ① Acid addition process: Open the outlet valve of acid inlet tank 2 or start the acid supply pump. New electrolyte is injected into each battery 1 through acid delivery pipe → main acid inlet pipe 10 → branch acid inlet pipe 11 → branch acid inlet pipe 21 → connector 30; ② Acid return process: Start the acid return pump to form a negative pressure suction. Old electrolyte is drawn from battery 1 through branch acid return pipe 22 → branch acid return pipe 121 → main acid return pipe 20 → delivery pipe → acid return tank 3. The pressure alarm 50 monitors the pressure on the acid inlet and acid return sides in real time. If a blockage occurs, an audible and visual alarm will be issued immediately.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An integrated acid circulation connector, characterized in that, include: The acid inlet pipeline includes an acid inlet main pipe (10) and a plurality of acid inlet branch pipes (11) spaced apart along the length of the acid inlet main pipe (10), and the plurality of acid inlet branch pipes (11) are all connected to the acid inlet main pipe (10). The acid return pipeline includes a main acid return pipe (20) and a plurality of acid return branch pipes (21) spaced apart along the length of the main acid return pipe (20), and the plurality of acid return branch pipes (21) are all connected to the main acid return pipe (20). Connector (30), multiple connectors (30) are arranged at intervals, and each connector (30) is provided with an acid inlet branch pipe (31) and an acid return branch pipe (32) respectively connected to the acid inlet branch pipe (11) and the acid return branch pipe (21). Multiple connectors (30) are inserted into multiple injection holes of the battery (1). Multiple acid inlet branch pipes (11) of the acid inlet pipeline and multiple acid inlet branch pipes (31) of the connector (30) cooperate one by one to add acid. Multiple acid return branch pipes (21) of the acid return pipeline and multiple acid return branch pipes (32) of the connector (30) cooperate one by one to return acid.

2. The integrated acid circulation connector according to claim 1, characterized in that, Telescopic pipes (12) are provided on the main acid inlet pipe (10) at a position between adjacent acid inlet branch pipes (11) and on the main acid return pipe (20) at a position between adjacent acid return branch pipes (21).

3. An integrated acid circulation connector according to claim 2, characterized in that, It also includes a bracket (40), which covers the outside of the acid inlet pipe (10) and the acid return pipe (20) and has an opening at the bottom. The acid inlet pipe (10) is led out from one side of the bracket (40) and the acid return pipe (20) is led out from the other opposite side of the bracket (40).

4. An integrated acid circulation connector according to claim 3, characterized in that, The acid inlet pipe (10) and the acid return pipe (20) are respectively led out from the bracket (40) and are connected to acid delivery pipes. Each acid delivery pipe is equipped with a pressure alarm (50).

5. An integrated acid circulation connector according to claim 1, characterized in that, A spring piece (33) is also provided on the outside of the connector (30), and a locking block (34) is provided on the spring piece (33). After the connector (30) is inserted into the injection hole, the locking block (34) is engaged with the locking groove on the inner side wall of the injection hole.

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