Flow battery detection device

Abstract

The utility model relates to the technical field of battery detection, and discloses a flow battery detection device, the flow battery detection device comprises a battery, a detection plate, a clamping piece and a detection device, the battery comprises a polar plate, the polar plate is used for storing and releasing electric energy, the detection plate is connected with one end of the polar plate, the detection plate extends towards the direction deviating from the polar plate, and the clamping piece is used for clamping the detection device. The clamping piece clamps the two sides of the detection plate, the clamping piece comprises a first clamping piece and a second clamping piece, the end of the first clamping piece is connected with the end of the second clamping piece, the detection plate is located between the first clamping piece and the second clamping piece, the detection device is electrically connected with the clamping piece, and the detection device is used for detecting the running state of the battery. By arranging the detection plate on the polar plate, damage to the polar plate is avoided, normal operation of the polar plate during detection operation is guaranteed, the contact area of the clamping pieces and the detection plate is increased by clamping the two sides of the detection plate through the clamping pieces, the connection strength and stability of the clamping pieces and the detection plate are improved, and the detection precision is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery detection, and in particular to a flow battery detection device. BACKGROUND

[0002] Flow batteries, such as all-vanadium flow batteries, are a large-scale energy storage technology. The stack of an all-vanadium flow battery is formed by stacking a plurality of single cells. The normal operation of each single cell can ensure the normal charging and discharging of the entire stack. Therefore, the detection of single cells is crucial to ensure the safe operation and performance maintenance of the stack.

[0003] In related technologies, a pin or a sheet is fixed by being inserted into a gap between a polar plate and a flow frame. The insertion depth cannot be controlled, which can easily cause the polar plate to break and damage the sealing of the stack, thereby causing a leakage risk. Alternatively, a connection hole is formed in the polar plate, and a voltage lead is connected to the polar plate through a bolt. Due to the characteristics of the material (graphite plate or composite carbon plastic plate) of the polar plate itself, the connection hole of the polar plate cannot be subjected to anti-loosening and strong pre-tightening processes, which greatly reduces the contact ability of the lead and the polar plate and affects the detection accuracy. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems existing in the prior art or related art.

[0005] Therefore, according to the embodiments of the present application, a flow battery detection device is provided. The flow battery detection device comprises a battery, a detection plate, a clamping piece, and a detection device. The battery comprises a polar plate, the polar plate is used for storing and releasing electric energy, the detection plate is connected to one end of the polar plate, the detection plate extends in a direction away from the polar plate, the clamping piece clamps two sides of the detection plate, the clamping piece comprises a first clamping piece and a second clamping piece, an end of the first clamping piece is connected to an end of the second clamping piece, the detection plate is located between the first clamping piece and the second clamping piece, and the detection device is electrically connected to the clamping piece. The detection device is used for detecting the operating state of the battery.

[0006] In some embodiments of the present application, a plurality of batteries form a stack, and any battery comprises two polar plates. A detection plate and a clamping piece are arranged on any polar plate.

[0007] In some embodiments of the present application, the clamping piece is elastic, so that the first clamping piece and the second clamping piece can exert a pre-tightening force on the detection plate.

[0008] In some embodiments of the present application, the flow battery detection device further comprises an insulating piece. The insulating piece is connected to the clamping piece, and covers the outer side of the clamping piece.

[0009] In some embodiments of the present application, the clamping piece and the detection plate are detachably connected.

[0010] In some technical solutions provided by the present application, optionally, the flow battery detection device further comprises a lead wire and a plug strip, one end of the lead wire is connected with the clamping piece, the plug strip is connected with the other end of the lead wire, and the plurality of lead wires are distributed on the plug strip at intervals, and the plug strip is used for being electrically connected with the detection device.

[0011] In some technical solutions provided by the present application, optionally, the flow battery detection device further comprises a socket, the socket is electrically connected with the detection device, and the socket is detachably connected with the plug strip.

[0012] In some technical solutions provided by the present application, optionally, the socket is provided with a matching piece, and the plug strip comprises a base, a plurality of matching parts are arranged on the base, any matching part is electrically connected with the corresponding lead wire, and the matching part is used for being matched with the matching piece and being electrically connected.

[0013] In some technical solutions provided by the present application, optionally, the socket is further provided with a guide groove, and the plug strip further comprises a guide column, the guide column is connected with one end of the base and is the same as the extension direction of the matching part, and the guide column is used for extending into the guide groove.

[0014] In some technical solutions provided by the present application, optionally, the first clamping piece and the second clamping piece are respectively provided with a bending part, the two bending parts are bent towards each other, and / or the top surface of the detection plate is polygonal or semicircular.

[0015] Compared with the prior art, the utility model at least has the following beneficial effects:

[0016] By arranging the detection plate on the polar plate, the polar plate is prevented from being damaged, the normal operation of the polar plate during the detection operation is ensured, and the safety of the battery operation is ensured. Moreover, the clamping piece clamps the two sides of the detection plate, the contact area of the clamping piece and the detection plate is increased, the connection strength and stability of the clamping piece and the detection plate are improved, the detection precision is ensured, and the reliability and stability of the battery detection are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the present application. Moreover, the same reference numerals are used throughout the same parts throughout the drawings. In the drawings:

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a flow battery detection device according to an embodiment of the present application;

[0019] Figure 2 FIG. 2 is another structural schematic diagram of a flow battery detection device according to an embodiment of the present application;

[0020] Figure 3 FIG. 3 is a structural schematic diagram of a liquid flow battery detection device according to an embodiment of the present application;

[0021] Figure 4 FIG. 4 is a structural schematic diagram of a liquid flow battery detection device according to an embodiment of the present application;

[0022] Figure 5 FIG. 5 is a structural schematic diagram of a power strip according to an embodiment of the present application;

[0023] Figure 6 FIG. 6 is a structural schematic diagram of a socket according to an embodiment of the present application.

[0024] wherein, Figures 1 to 6 The correspondence between the reference signs and the component names in the drawings is as follows:

[0025] 100, stack, 110, battery, 111, electrode plate, 112, upper electrode frame, 113, ion membrane, 114, lower electrode frame, 200, detection plate, 300, clamping piece, 310, first clamping piece, 320, second clamping piece, 330, bending part, 400, lead wire, 500, power strip, 510, base, 520, matching part, 530, guide column, 600, socket, 610, matching piece, 620, guide groove. DETAILED DESCRIPTION

[0026] In order to better understand the above technical solutions, the technical solutions of the embodiments of the present application will be described in detail below through the drawings and specific embodiments. It should be understood that the specific features in the embodiments of the present application and the embodiments are detailed descriptions of the technical solutions of the embodiments of the present application, and are not limitations of the technical solutions of the present application. In the case of no conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0027] The embodiments of the present application provide a liquid flow battery detection device, as shown in Figure 1 、 Figure 3 and Figure 4 The liquid flow battery detection device comprises a battery 110, a detection plate 200, a clamping piece 300 and a detection device. The battery 110 comprises an electrode plate 111 for storing and releasing electric energy. The detection plate 200 is connected to one end of the electrode plate 111 and extends in a direction away from the electrode plate 111. The clamping piece 300 clamps both sides of the detection plate 200 and comprises a first clamping piece 310 and a second clamping piece 320. The end of the first clamping piece 310 is connected to the end of the second clamping piece 320. The detection plate 200 is located between the first clamping piece 310 and the second clamping piece 320. The detection device is electrically connected to the clamping piece 300 and is used to detect the running state of the battery 110.

[0028] In this embodiment, the battery 110 includes a plate 111 capable of storing and releasing electric energy, and the detection plate 200 is located at one end of the plate 111 and extends outward from the plate 111, Figure 3 The arrow in the middle X position indicates the extension direction of the plate 111. The clamping member 300 includes a first clamping piece 310 and a second clamping piece 320, one end of which is connected, and the other end is spaced apart, so that a clamping space is formed between the first clamping piece 310 and the second clamping piece 320, and the detection plate 200 is located in the clamping space. The first clamping piece 310 and the second clamping piece 320 are respectively connected to the two sides of the detection plate 200 and apply a pre-tightening force to the two sides of the detection plate 200 to ensure that the detection plate 200 is tightly connected to the clamping member 300.

[0029] The clamping member 300 is connected to the detection device, so that the detection device is electrically connected to the plate 111 through the clamping member 300 and the detection plate 200, and the plate 111 is in communication with the detection device. Through the detection device, the plate 111 is detected in real time or periodically, the running state of the battery 110 is fed back, and the performance deteriorated fault battery 110 is found in time. Exemplarily, the detection device can be a battery inspection instrument, and the detection operation can include voltage detection.

[0030] By providing the detection plate 200 on the plate 111, the plate 111 is prevented from being damaged, ensuring that the plate 111 can operate normally during the detection operation, thereby ensuring the safety of the battery 110 operation. Moreover, by clamping the two sides of the detection plate 200 through the clamping member 300, the contact area between the clamping member 300 and the detection plate 200 is increased, the connection strength and stability between the clamping member 300 and the detection plate 200 are improved, the detection accuracy is ensured, and the reliability and stability of the battery 110 detection are improved.

[0031] Exemplarily, when the battery 110 is in an under-voltage or over-voltage state, the detection device can issue an alarm prompt signal to find the performance deteriorated fault single-stage battery 110 in time.

[0032] In some embodiments provided in the present application, as shown in Figure 1 and Figure 2 Optionally, a plurality of batteries 110 form a stack 100, and any battery 110 includes two plates 111, and any plate 111 is provided with a detection plate 200 and a clamping member 300.

[0033] In this embodiment, the stack 100 is formed by stacking a plurality of single batteries 110, and the battery 110 includes two plates 111, an upper electrode frame 112, an ion membrane 113, and a lower electrode frame 114. The ion membrane 113 is located between the upper electrode frame 112 and the lower electrode frame 114, and the two plates 111 are located on the outer sides of the upper electrode frame 112 and the lower electrode frame 114.

[0034] The detection plate 200 and the clamping piece 300 are arranged on the two polar plates 111 of any battery 110, so that any battery 110 in the stack 100 can be electrically connected with the detection device, thereby realizing real-time or periodic detection of each battery 110, feeding back the performance of each battery 110 in the stack 100, and discovering the performance-degraded faulty battery 110 in the stack 100 in time, thereby improving the comprehensiveness and accuracy of the detection of the stack 100.

[0035] In some embodiments provided in the present application, optionally, the clamping piece 300 is elastic, so that the first clamping piece 310 and the second clamping piece 320 can apply a pre-tightening force to the detection plate 200.

[0036] In this embodiment, the clamping piece 300 is made of an elastic material, so that the movable ends of the first clamping piece 310 and the second clamping piece 320 can approach or move away from each other. When the clamping piece 300 is in the clamping state, the first clamping piece 310 and the second clamping piece 320 can be elastically deformed and apply a pre-tightening force to the two sides of the detection plate 200, so that the clamping piece 300 is in close contact with the detection plate 200, the contact strength of the clamping piece 300 and the detection plate 200 is improved, the stability of the clamping is ensured, and the pre-tightening process is saved.

[0037] Illustratively, the clamping piece 300 can be made of an elastic metal material.

[0038] In some embodiments provided in the present application, optionally, the flow battery detection device further comprises an insulating piece, the insulating piece is connected with the clamping piece 300, and the insulating piece covers the outer side of the clamping piece 300.

[0039] In this embodiment, the insulating piece is connected with the outer wall of the clamping piece 300, and covers the outer side of the connecting end of the first clamping piece 310 and the second clamping piece 320 and the outer side of the first clamping piece 310 and the second clamping piece 320 away from each other, so that the insulating piece avoids the clamping space. While ensuring that the clamping piece 300 and the detection plate 200 can normally conduct electricity, the insulating piece can provide insulation protection for the clamping piece 300, avoid short circuit caused by communication between adjacent clamping pieces 300, or avoid interference of the detection operation caused by electrical connection between the clamping piece 300 and other components in the external environment, thereby ensuring the safety and accuracy of the detection operation.

[0040] In some embodiments provided in the present application, optionally, the clamping piece 300 and the detection plate 200 are detachably connected.

[0041] In this embodiment, after the battery 110 fails, the clamping piece 300 can be detached from the detection plate 200, and after the battery 110 is replaced, the clamping piece 300 and the detection plate 200 are reconnected to continue detecting the replaced battery 110, thereby improving the utilization efficiency of the clamping piece 300 and the convenience of the detection operation.

[0042] In some embodiments provided in the present application, as shown in Figure 4 and Figure 5 Optionally, the flow battery detection device further comprises lead wires 400 and a power strip 500, one end of the lead wires 400 is connected with the clamping piece 300, the power strip 500 is connected with the other end of the lead wires 400, the plurality of lead wires 400 are distributed on the power strip 500, and the power strip 500 is used for electrical connection with the detection device.

[0043] In this embodiment, the two ends of the lead wires 400 are connected with the clamping piece 300 and the power strip 500 respectively, specifically, one end of the lead wires 400 is connected with the connecting end of the first clamping piece 310 and the second clamping piece 320, and the other end of the lead wires 400 is distributed on the power strip 500 to form a wire strip structure, which improves the regularity of the layout of the lead wires 400, avoids the mutual entanglement of the lead wires 400, and makes the plurality of lead wires 400 of the stack 100 connected with the detection device through the power strip 500, thereby improving the connection efficiency and stability of the lead wires 400.

[0044] In some embodiments provided in the present application, as shown in Figure 6 Optionally, the flow battery detection device further comprises a socket 600, the socket 600 is electrically connected with the detection device, and the socket 600 is detachably connected with the power strip 500.

[0045] In this embodiment, in the case that the power strip 500 is connected with the socket 600, the battery 110 is electrically connected with the detection device through the power strip 500 and the socket 600, and the detachable connection between the power strip 500 and the socket 600 makes the flow battery detection device form a split structure, thereby effectively improving the convenience of battery 110 detection and the connection efficiency of detection operation.

[0046] In some embodiments provided in the present application, as shown in Figure 5 , Figure 6 Optionally, the socket 600 is provided with a matching piece 610, and the power strip 500 comprises a base 510, and the base 510 is provided with a plurality of matching portions 520, any matching portion 520 is electrically connected with the corresponding lead wire 400, and the matching portion 520 is used for cooperation and electrical connection with the matching piece 610.

[0047] In this embodiment, the plurality of matching portions 520 on the base 510 correspond to the plurality of lead wires 400 one by one, any matching portion 520 is electrically connected with the corresponding lead wire 400, and when the matching portion 520 and the matching piece 610 cooperate with each other, the matching portion 520 and the matching piece 610 are electrically connected, so that the power strip 500 and the socket 600 are electrically connected, thereby realizing the communication of the detection circuit and improving the stability of the connection between the power strip 500 and the socket 600.

[0048] Exemplarily, the mating portions 520 form a rectangular array on the base 510, and the mating portions 520 and the mating pieces 610 can be jacks and probes respectively.

[0049] In some embodiments provided in the present application, as shown in Figure 5 、 Figure 6 Optionally, the socket 600 is further provided with a guide groove 620, and the power strip 500 further includes a guide post 530 connected to one end of the base 510 and extending in the same direction as the mating portions 520, and the guide post 530 is used to extend into the guide groove 620.

[0050] In this embodiment, the guide post 530 is located at one end of the base 510 and extends in the same direction as the mating portions 520, Figure 5 The arrow in the middle Y position points to the extension direction of the guide post 530. Exemplarily, when the mating portions 520 are jacks, the guide post 530 extends along the depth direction of the jacks. When the socket 600 is connected to the power strip 500, the guide post 530 on the power strip 500 can extend into the guide groove 620 of the socket 600 to guide the mating movement of the power strip 500, thereby improving the efficiency and accuracy of the connection between the power strip 500 and the socket 600.

[0051] Exemplarily, the number of the guide posts 530 can be multiple, and the number of the guide posts 530 is the same as the number of the guide grooves 620, and the multiple guide posts 530 are uniformly distributed along the circumference of the base 510.

[0052] In some embodiments provided in the present application, as shown in Figure 3 and Figure 4 Optionally, the first clamping piece 310 and the second clamping piece 320 are respectively provided with a bent portion 330, and the two bent portions 330 are bent towards each other, and / or the top surface of the detection plate 200 is polygonal or semicircular.

[0053] In this embodiment, the bent portions 330 are respectively located between the two ends of the first clamping piece 310 and the second clamping piece 320, and the two bent portions 330 are bent towards each other, so that the middle position of the clamping space is inwardly contracted, thereby improving the clamping effect of the clamping piece 300 on the detection plate 200. Moreover, the front end of the clamping space is outwardly expanded, thereby facilitating the insertion of the clamping piece 300 into the two sides of the detection plate 200.

[0054] The top surface and the bottom surface of the detection plate 200 are the same shape, and the top surface is polygonal or semicircular, so as to strengthen the mechanical strength of the extension part of the detection plate 200.

[0055] Exemplarily, the top surface of the detection plate 200 can be rectangular or trapezoidal, and the end portion of the detection plate 200 can be inwardly contracted.

[0056] In a specific embodiment, after the assembly of the stack 100 is completed, the clamping piece 300 connected with the lead wire 400 is inserted into both sides of the detection plate 200, and the other end of the lead wire 400 is a socket 500 which is matched with the socket 600 through the guide groove 620 to realize voltage monitoring. The detection plate 200 is an extension part of the polar plate 111 and adopts a trapezoidal or semicircular structure. The clamping piece 300 is made of metal material and is wrapped with an insulating piece, and the clamping force of the clamping piece 300 ensures that it is tightly connected with the detection plate 200. The lead wire 400 adopts a wire row structure. The modular socket 500 and the socket 600 are used to realize rapid connection, and the number of probe connections of the modular socket 500 can be expanded. When the stack 100 does not need real-time detection and only needs to measure the health status of the stack 100 periodically, rapid plug-in can be realized.

[0057] The application provides a split structure to realize rapid disassembly and connection of the detection device and the polar plate 111, effectively improves the reliability and stability of the detection of the single cell 110 of the stack 100, and simultaneously realizes real-time online detection or periodic detection of the voltage of the single cell 110 in the stack 100 under the operating condition, thereby guaranteeing the operation safety of the stack 100. A special voltage interface is designed on the polar plate 111, one end of the lead wire row is welded with a single-stage metal elastic clamping piece, the other end of the lead wire row is a modular socket 500, the modular socket 500 and the socket 600 can realize rapid plug-in, the voltage detection efficiency is improved, and the voltage patrol instrument can patrol and monitor the single voltage of the stack and the total voltage of the stack to realize real-time feedback of the performance of the stack 100.

[0058] In the utility model, the terms "first", "second" and "third" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connection", "connection" and "fixing" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be direct connection, or indirect connection through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0059] In the description of the utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0060] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flow battery detection device, characterized by, The application relates to a liquid flow battery detection device. The battery comprises a plate for storing and releasing electric energy. A detection plate is connected to one end of the plate and extends away from the plate. A clamping piece clamps two sides of the detection plate. The clamping piece comprises a first clamping piece and a second clamping piece. The first clamping piece is connected to the second clamping piece at the end. The detection device is electrically connected to the clamping piece and is used for detecting the running state of the battery.

2. The liquid flow battery detection device according to claim 1, wherein a plurality of the batteries form an electric pile. Any of the batteries comprises two plates.

4. The flow battery detection apparatus of claim 1, wherein, Any of the plates is provided with the detection plate and the clamping piece.

3. The liquid flow battery detection device according to claim 1, wherein the clamping piece is elastic. The first clamping piece and the second clamping piece can apply a pre-tightening force to the detection plate. The application further relates to an insulating piece.

6. The flow battery detection apparatus of claim 2, wherein, The insulating piece is connected to the clamping piece and covers the outer side of the clamping piece.

5. The liquid flow battery detection device according to claim 1, wherein the clamping piece and the detection plate are detachably connected. The application further relates to a lead.

7. The flow battery detection apparatus of claim 6, wherein, One end of the lead is connected to the clamping piece. A power strip is connected to the other end of the lead.

8. The flow battery detection apparatus of claim 7, wherein, A plurality of leads are spaced apart on the power strip. The power strip is used for being electrically connected to the detection device.

9. The flow battery detection apparatus of claim 8, wherein, The application further relates to a socket. The socket is electrically connected to the detection device. The socket is detachably connected to the power strip. The socket is provided with a matching piece. The power strip comprises a base. The base is provided with a plurality of matching portions. Any of the matching portions is electrically connected to the corresponding lead. The matching portions are used for being matched with and electrically connected to the matching piece. The socket is further provided with a guide groove. The power strip further comprises a guide column. One end of the guide column is connected to the base and is in the same extension direction as the matching portions. The guide column is used for extending into the guide groove.

10. The liquid flow battery detection device according to any one of claims 1 to 9, wherein the first clamping piece and the second clamping piece are respectively provided with a bending portion. The two bending portions are bent towards each other. The top surface of the detection plate is in a polygonal shape or a semicircular shape.

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