Stacking structure for flow battery

Abstract

The utility model relates to the technical field of flow batteries, and discloses a stack structure for a flow battery, which comprises a base, end plates and a plurality of battery units, the battery units are mutually attached and contacted, the end plates are provided with two end surfaces attached and contacted to the battery units, a plurality of connecting rods penetrate through two sides between the end plates, the connecting rods are positioned on the side edges of the battery units, and the connecting rods are connected with the base. Nuts abutting against the outer surfaces of the end plates are screwed to the outer rings of the two ends of the connecting rod through threads, a combined body of the battery unit and the end plates is arranged in a groove in the surface of the base, and an upper plate covers the combined body of the battery unit and the end plates. According to the technical scheme, the two sides between the end plates are locked through the connecting rods, then the end plates at the two ends are arranged in the groove of the lower base and the groove of the upper plate, the lower portions and the upper portions of the end plates are locked from the two ends through the grooves, acting force on the transverse connecting rods can be reduced, and therefore use of screws is reduced; the locking strength is guaranteed, and meanwhile the complexity of the structure and the assembling process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid flow battery, concretely to a kind of stacking structure for liquid flow battery. BACKGROUND

[0002] Liquid flow battery is a kind of battery separating electrolyte and electrode, electrolyte flows in battery, can occur chemical reaction on electrode, to generate electric energy, the battery unit of liquid flow battery is just by multiple liquid flow battery units according to certain mode is stacked, to improve output power, in stacking process, the positive and negative electrode electrolyte of each battery unit is respectively loaded in two storage tanks, electrolyte is circulated through battery interior by sending liquid pump and carries out chemical reaction, these chemical reactions are based on reversible oxidation-reduction reaction of active substance in positive and negative electrode electrolyte, to realize the mutual conversion of electric energy and chemical energy.

[0003] The end plate of liquid flow battery is placed at the both ends of the battery unit stacked together, then is locked by multiple long bolts, the force of long bolt is relatively large, to ensure firmness, the number of long bolt needs to be increased, so that structure and assembly process are relatively complex.Therefore, we propose a kind of stacking structure for liquid flow battery. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of stacking structure for liquid flow battery, by utilizing connecting rod first locking the both sides between end plate, then make two end end plate be placed in the groove of lower base and the groove of upper plate, the lower and upper of end plate is locked from both ends using groove, can reduce the force of transverse connecting rod to reduce the use of screw rod, ensure locking strength while reducing the complexity of structure and assembly process, solve the problem proposed in background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of stacking structure for liquid flow battery, including base, end plate and battery unit, the battery unit is provided with multiple and mutually adheres to, end plate is provided with two adheres to the both end surfaces of battery unit, the both sides between end plate are penetrated by multiple connecting rods, connecting rod is located at the side of battery unit, the outer circle of both ends of connecting rod is screwed with the nut that is in contact with the outer surface of end plate;The combination of battery unit and end plate is placed in the groove in the surface of base, the upper of the combination of battery unit and end plate is covered with upper plate, the combination of battery unit and end plate is clamped in the groove opened in the bottom of upper plate, the outer circle of upper plate is vertically penetrated by multiple long bolts, the bottom of long bolt is screwed into the screw hole arranged on the surface of base to realize the locking of upper plate.

[0006] By adopting the technical scheme, the two sides of the end plate are first locked by the connecting rods, and then the end plate is clamped in the grooves of the base and the upper plate below and below, so that the upper and lower clamping and locking of the end plate are realized, the number of connecting rods is reduced, and the locking strength is ensured.

[0007] Optionally, the first connecting ring is fixed on the surface of the base.

[0008] By adopting the technical scheme, when the lifting device is needed, the lifting cable can be connected through the first connecting ring.

[0009] Optionally, the steel cable is connected and fixed on the first connecting ring, the end of the steel cable is connected with a support plate, and the lifting ring is fixed on the surface of the support plate.

[0010] By adopting the technical scheme, the steel cable extends upward at the lifting position, which is more convenient for lifting the equipment.

[0011] Optionally, the steel cable penetrates to the upper plate, and the support plate and the lifting ring are arranged above the upper plate.

[0012] Optionally, a through hole is formed on the surface of the upper plate below the support plate, and the steel cable penetrates to the upper plate through the through hole.

[0013] Optionally, the second connecting ring is welded and fixed at the bottom of the support plate, the steel cable is connected to the lower side of the support plate through the second connecting ring, and the second connecting ring is arranged in the through hole.

[0014] By adopting the technical scheme, the top of the steel cable is connected and locked with the support plate through the second connecting ring.

[0015] Compared with the prior art, the beneficial effects of the technical scheme of the present application are as follows:

[0016] 1. The technical scheme of the present application first locks the two sides of the end plate by the connecting rods, and then arranges the two end plates in the grooves of the base below and the upper plate above, and locks the lower and upper sides of the end plate by the grooves, so as to reduce the action force on the horizontal connecting rod and reduce the use of the screw rod, and the horizontal reaction force will not be transmitted to the long bolt of the vertically locked upper plate and base, so as to ensure the locking strength and reduce the complexity of the structure and assembly process.

[0017] 2. The technical scheme of the present application is connected with the steel cable at the four corners of the base, the steel cable extends to the upper plate and is locked with the lifting ring, so that the base can be conveniently lifted and transferred when needed, and the lifting will not transmit a large force to the long bolt. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features, objects, and advantages of the application will become more apparent from the following detailed description when read in conjunction with the accompanying drawings, in which:

[0019] Fig. 1 It is the whole structure schematic diagram of the stacking structure for flow battery of the utility model;

[0020] Fig. 2 It is the cross section structure schematic diagram of the support plate of the stacking structure for flow battery of the utility model.

[0021] In the drawing: 1, base; 11, first connecting ring; 111, steel cable; 2, upper plate; 21, through hole; 3, groove; 4, end plate; 5, battery unit; 6, connecting rod; 61, nut; 7, long bolt; 8, support plate; 81, lifting ring; 82, second connecting ring. DETAILED DESCRIPTION

[0022] Please refer to Figs. 1-2 The utility model provides a technical scheme: a stacking structure for flow battery, including base 1, end plate 4 and battery unit 5, battery unit 5 is provided with multiple and mutually adheres to, end plate 4 is provided with two adheres to the both ends surface of battery unit 5, and the both sides between end plate 4 are penetrated by multiple connecting rods 6, and connecting rod 6 is located the side of battery unit 5, and the both ends outer circle of connecting rod 6 is screwed with the nut 61 that adheres to the outer surface of end plate 4, and end plate 4 is locked to the inside, realizes the locking of the whole structure of flow battery, and the inside main structure of battery unit 5 is positive, negative and diaphragm, and battery unit 5 is also provided with the positive inlet and outlet liquid pipe and negative inlet and outlet liquid pipe that communicate with its inside, and the specific structure and principle are prior art known technology, and it will not be further elaborated.

[0023] The surface of base 1 is provided with the groove 3 that is adapted to the size of the combination of battery unit 5 and end plate 4, so that the bottom of the combination of battery unit 5 and end plate 4 is placed in the groove 3 on the surface of base 1, then the upper plate 2 is placed on the top of the combination of battery unit 5 and end plate 4, and similarly, the top of the combination of battery unit 5 and end plate 4 is clamped in the groove 3 on the bottom of upper plate 2.

[0024] Then the outer circle of upper plate 2 is vertically penetrated by multiple long bolts 7, and the bottom of long bolt 7 is screwed into the screw hole provided on the surface of base 1 to lock upper plate 2, and the combination of battery unit 5 and end plate 4 is locked by the cooperation of connecting rod 6 and nut 61, at the same time, the top and bottom of the combination of battery unit 5 and end plate 4 are subjected to the transverse locking action of groove 3, to ensure the stability and reliability of the combination of battery unit 5 and end plate 4, and the transverse force will not be transmitted to the vertical long bolt 7, so that the stable locking of upper plate 2 is not affected.

[0025] For the purpose of lifting the whole later, the first connecting ring 11 is fixed on the surface of the base 1 at four corners, and the first connecting ring 11 is fixed on the surface of the base 1 by welding, which can be directly linked to the lifting device. Further, the steel cable 111 is fixed on the first connecting ring 11, and the end of the steel cable 111 is connected to the support plate 8. The second connecting ring 82 is welded and fixed at the bottom of the support plate 8, and the steel cable 111 is connected to the lower side of the support plate 8 through the second connecting ring 82. The lifting ring 81 is fixed on the surface of the support plate 8, and the steel cable 111 penetrates to the upper side of the upper plate 2. The through hole 21 is arranged on the surface of the upper plate 2 below the support plate 8, and the steel cable 111 penetrates to the upper side of the upper plate 2 through the through hole 21. The second connecting ring 82 is arranged in the through hole 21, and the support plate 8 and the lifting ring 81 are arranged above the upper plate 2, so that when lifting is needed, the steel cable 111 can be directly connected from the upper side, and the base 1 is lifted instead of the upper plate 2, which does not increase the stress of the long bolt 7 during lifting.

[0026] When assembling, the end plate 4 is placed at both ends of the battery unit 5 and tightly attached, the connecting rod 6 is first transversely penetrated through the two sides of the end plate 4 at both ends, and then the outer ring of the connecting rod 6 at both ends is screwed with the nut 61, which is tightly attached to the surface of the end plate 4, and then the battery unit 5 is pressed tightly inward to lock, the total length of the locked battery unit 5 and end plate 4 is adapted to the length of the groove 3, which can be exactly inserted and clamped in the groove 3 of the base 1, and then the upper plate 2 is placed above the end plate 4 and the battery unit 5, and the locked battery unit 5 and end plate 4 are clamped above the groove 3 at the bottom of the upper plate 2, and then the long bolt 7 is vertically penetrated through the upper plate 2 and screwed into the surface screw hole of the base 1, so that the upper plate 2 cover is locked above, and finally the support plate 8 is placed above the upper plate 2, the steel cable 111 is placed above the base 1 after penetrating through the through hole 21, and the first connecting ring 11 is welded and fixed on the surface of the base 1 after being connected to the first connecting ring 11 at the bottom, the assembly of the flow battery is completed, the end plate 4 between the two ends not only receives the locking force from the beam and the nut 61, but also receives the extrusion locking action of the groove 3 from above and below. The force is in the transverse direction and will not be transmitted to the vertically arranged long bolt 7, so that stable and reliable firm locking purpose can be achieved with fewer connecting rods 6.

Claims

1. A stack structure for a flow battery comprising a base (1), an end plate (4) and a cell (5), characterised in that: The battery unit (5) is provided with a plurality of and mutual contact, end plate (4) is provided with two contact on both ends of the surface of the battery unit (5), the two sides between the end plate (4) is penetrated by a plurality of connecting rod (6), connecting rod (6) is located in the side of the battery unit (5), the outer circle of both ends of connecting rod (6) is screwed with the nut (61) which is in contact with the outer surface of the end plate (4); The combination of battery unit (5) and end plate (4) is placed in the groove (3) on the surface of the base (1), the upper part of the combination of battery unit (5) and end plate (4) is covered with the upper plate (2), the combination of battery unit (5) and end plate (4) is clamped in the groove (3) opened in the bottom of the upper plate (2), the outer circle of the upper plate (2) is vertically penetrated by a plurality of long bolts (7), the bottom of the long bolt (7) is screwed into the screw hole provided on the surface of the base (1) to realize the locking of the upper plate (2).

2. The stack structure for a liquid flow battery according to claim 1, characterized by: The surface of the base (1) is fixed with the first connecting ring (11) at four corners, and the first connecting ring (11) is fixed on the surface of the base (1) by welding.

3. The stack structure for a liquid flow battery according to claim 2, characterized by: The first connecting ring (11) is connected and fixed with the steel cable (111), and the end of the steel cable (111) is connected with the supporting plate (8), and the surface of the supporting plate (8) is fixed with the lifting ring (81).

4. The stack structure for a liquid flow battery according to claim 3, characterized by: The steel cable (111) penetrates to the upper part of the upper plate (2), and the supporting plate (8) and the lifting ring (81) are placed above the upper plate (2).

5. The stack structure for a liquid flow battery according to claim 4, characterized by: The surface of the upper plate (2) below the supporting plate (8) is provided with a through hole (21), and the steel cable (111) penetrates to the upper part of the upper plate (2) through the through hole (21).

6. The stack structure for a liquid flow battery according to claim 5, characterized by: The bottom of the supporting plate (8) is welded and fixed with the second connecting ring (82), and the steel cable (111) is connected below the supporting plate (8) through the second connecting ring (82), and the second connecting ring (82) is placed in the through hole (21).

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