Voltage inspection terminal for flow battery

Abstract

The utility model discloses a liquid flow battery voltage inspection terminal, which comprises a metal copper sheet and an insulating plastic shell coated outside the metal copper sheet, two sides of the lower end of the insulating plastic shell are respectively provided with a correction tooth and a gear shaper, the outer side surface of the gear shaper is provided with an avoiding groove, one surface in the avoiding groove is fixedly provided with the metal copper sheet, and the other surface in the avoiding groove is fixedly provided with the correction tooth. And the lower end part of the metal copper sheet is obliquely bent. The voltage inspection terminal is formed by integral injection molding of the metal copper sheet and the insulating plastic shell, and is simple in structure, firm and durable; the correction teeth and the insertion teeth are arranged, so that the mounting gap can be adjusted through the tooth-shaped structure even if the single battery has assembly errors, and good contact between the metal copper sheet and the extension part of the bipolar plate can be ensured while quick mounting is realized; the tooth-shaped structure and the hollow structure on the voltage inspection terminal can ensure the mechanical performance of the terminal after being matched with the voltage acquisition position, and ensure that the terminal does not shake when being touched by mistake or impacted by external force, thereby ensuring that the copper sheet is in good contact with the bipolar plate and the service life is long enough.

Description

Technical Field

[0001] This utility model belongs to the field of flow battery technology, and in particular relates to a flow battery voltage monitoring terminal. Background Technology

[0002] A flow battery stack is formed by stacking several electrodes, electrode frames, bipolar plates, and ion-exchange membranes together in a filter press manner, and attaching current collectors, flow guides, and end plates on both sides.

[0003] During the charging and discharging process of a flow battery stack, it is usually necessary to monitor the voltage status of each cell in the battery pack to ensure the stability and safety of battery performance.

[0004] Currently, in engineering applications, data is typically collected by extending the bipolar plates of the fuel cell stack and using simple terminals and wiring harnesses or pre-embedded copper wiring harnesses. However, simple terminals are prone to detaching from the extended bipolar plates, leading to poor contact. Accidental contact with the terminals during operation can easily cause the extended bipolar plates to break. Pre-embedded copper wiring, on the other hand, increases the risk of leaks and the difficulty of transport.

[0005] To address the aforementioned issues, we propose a flow battery voltage monitoring terminal. Utility Model Content

[0006] The purpose of this invention is to provide a voltage monitoring terminal for a flow battery to solve existing problems.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model is a voltage inspection terminal for a flow battery, comprising a copper sheet and an insulating plastic shell covering the copper sheet. The lower end of the insulating plastic shell is provided with correction teeth and insertion teeth on both sides. The outer side of the insertion teeth is provided with a clearance groove. A copper sheet is fixed on one surface of the clearance groove. The lower end of the copper sheet is designed with an inclined bending.

[0009] Furthermore, the insulating plastic shell is a hollow structure in the shape of an open box.

[0010] Furthermore, the copper sheet has an "L"-shaped plate structure, and the right end of the copper sheet is a connector.

[0011] Furthermore, the copper sheet and the insulating plastic shell are integrally molded by injection molding.

[0012] Furthermore, the lower end cross-section of the corrected tooth has a tapered structure.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, the voltage inspection terminal is integrally injection molded from a metal copper sheet and an insulating plastic shell, resulting in a simple, robust, and durable structure.

[0015] In this invention, by setting correction teeth and insertion teeth, even if there are assembly errors in a single battery, the installation gap can be adjusted through the toothed structure, which can quickly install the battery while ensuring good contact between the copper sheet and the extended part of the bipolar plate.

[0016] In this invention, the toothed structure and hollow structure on the voltage inspection terminal can also ensure the mechanical performance after the terminal and the voltage acquisition position are matched, and ensure that there is no shaking when accidentally touched or impacted by external force, thereby ensuring good contact between the copper sheet and the bipolar plate and a sufficiently long service life.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a simplified structural diagram of a single battery in this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a single battery and a voltage monitoring terminal in this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of a flow battery voltage monitoring terminal.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Copper sheet; 101. Connector; 2. Insulating plastic shell; 201. Correction tooth; 202. Insertion tooth; 203. Clearance groove; 3. Electrode frame A; 4. Electrode; 401. Bipolar plate extension; 5. Electrode frame B. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figures 1-3 As shown, this utility model is a voltage monitoring terminal for a flow battery, including a copper sheet 1 and an insulating plastic shell 2 covering the copper sheet 1. Correction teeth 201 and insertion teeth 202 are respectively provided on both sides of the lower end of the insulating plastic shell 2. During the assembly process, there may be assembly errors between the voltage acquisition positions of two adjacent single cells in the battery stack. The main function of the correction teeth 201 is to fine-tune the installation gap, ensuring that the gap between the voltage acquisition positions on both sides of each pair of single cells is consistent and has sufficient strength to prevent them from falling off or being damaged by external forces, thereby ensuring good contact between the copper sheet 1 and the bipolar plate extension 401. An avoidance groove 203 is provided on the outer side of the insertion teeth 202. A copper sheet 1 is fixed to one surface of the avoidance groove 203. The lower end of the copper sheet 1 is designed with an inclined bending to ensure that the bipolar plate extension 401 is not damaged during installation. Furthermore, the inclined end of the copper sheet 1 is precisely fitted into the gap and has a slight interference fit with the bipolar plate extension 401, ensuring good contact.

[0028] In one embodiment, the insulating plastic shell 2 is a hollow structure in the shape of a lidless box, which can be fitted onto the voltage acquisition position of a single battery to ensure that it does not wobble from side to side, making the terminal particularly secure after installation.

[0029] In one embodiment, the copper sheet 1 is an "L"-shaped plate structure, and the right end of the copper sheet 1 is a connector 101, which facilitates the lead-out of the wire harness to read the electrical signal.

[0030] In one embodiment, the copper sheet 1 and the insulating plastic shell 2 are integrally formed by injection molding.

[0031] In one embodiment, the lower end cross-section of the correction tooth 201 is tapered.

[0032] Please see Figures 1-3 As shown, this embodiment illustrates a method for using a flow battery voltage monitoring terminal: (as shown) Figure 1 As shown, the voltage of a single cell in a single stack contacts the bipolar plate extension 401 through a voltage monitoring terminal. The wiring harness of the rear connector 101 of the voltage monitoring terminal reads the electrical signal. Therefore, each single cell requires a matching voltage acquisition terminal.

[0033] In engineering applications, a battery stack is often composed of dozens of individual cells connected in series. The voltage of a single cell directly reflects the stability and safety of the battery performance. Therefore, voltage inspection terminals must be easy to install, have a robust structure, good contact, and a long service life.

[0034] like Figure 3 As shown, during use, the correction tooth 201 and the insertion tooth 202 are inserted into the designated positions in sequence. At this time, the space of the voltage acquisition position of the electrode frame A3 is occupied by the insertion tooth 202. When continuing to install downwards, the end of the metal copper sheet 1 contacts the upper part of the bipolar plate extension 401 first. Since the end of the metal copper sheet 1 is bent, it will not interfere with the bipolar plate during the downward movement, that is, it will not damage the extension part of the bipolar plate. Moreover, the bend at the end is just close to one side of the electrode frame A3, so that the metal copper sheet 1 is completely stuck on one side of the bipolar plate, ensuring good contact. After the gaps on both sides of the electrode frame A3 are filled by the correction tooth 201 and the insertion tooth 202, the mechanical strength is increased, it will not wobble back and forth, and it can withstand greater external forces.

[0035] like Figure 2 As shown, the insulating plastic shell 2 of the electrical inspection terminal is a plastic protective shell similar to an open box, which is fixed on the voltage acquisition position to prevent the two from shaking in the left and right directions.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A liquid flow battery voltage patrol terminal comprising a metal copper sheet (1) and an insulating plastic shell (2) coated outside the metal copper sheet (1), characterized in that: The lower end of the insulating plastic shell (2) is respectively provided with a correction tooth (201) and an insertion tooth (202), the outer side of the insertion tooth (202) is provided with a avoiding groove (203), one surface in the avoiding groove (203) is fixed with a metal copper sheet (1), and the lower end of the metal copper sheet (1) is designed in an inclined and bent manner.

2. A liquid flow battery voltage patrol terminal according to claim 1, wherein, The insulating plastic shell (2) is a hollow structure in the shape of a coverless box.

3. A liquid flow battery voltage patrol terminal according to claim 1, wherein, The metal copper sheet (1) is an "L" shaped plate structure, and the right end of the metal copper sheet (1) is a connecting piece (101).

4. The flow battery voltage patrol terminal of claim 1, wherein, The metal copper sheet (1) and the insulating plastic shell (2) are integrally formed by injection molding.

5. The flow battery voltage patrol terminal of claim 1, wherein, The lower end of the correction tooth (201) is in a conical structure.

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