Circular fuel cell bipolar plate

Abstract

The utility model relates to the technical field of battery bipolar plates, in particular to a circular fuel cell bipolar plate which comprises a device shell, a cover plate is hinged to the top end of the device shell, a connecting port is formed in the front face of the device shell, the connecting port is fixed to the bottom end of the cover plate, and a movable plate is fixed to the bottom end of the connecting port; the device comprises a device shell, a plurality of groups of electrode plate bodies are movably arranged in the device shell, a fixed partition plate is fixed between every two groups of reactant channel areas, connecting plates are fixed to the two sides of the plurality of groups of electrode plate bodies, and square convex blocks are arranged on the two sides of the fixed partition plates. A square sliding groove is fixed to one side of the connecting plate. According to the utility model, the cover plate, the movable plate and the spring are matched for use, so that the purpose of reducing the loosening condition during use can be achieved, uniform pressure distribution is provided, and the bipolar plate units of the battery are in close contact.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery bipolar plate technical field, concretely is a kind of circular fuel cell bipolar plate. BACKGROUND

[0002] Fuel cell bipolar plate is one of the key components in fuel cell stack, and its main functions include providing gas flow channel, collecting current and supporting membrane electrode assembly.

[0003] The existing fuel cell bipolar plate is mostly simply installed when installing, and is prone to loosen after long-term use, affecting the safety of use, and part of the fuel cell bipolar plate is connected by single bolt, which is displaced and deviated after long-term use, affecting the stability of use.

[0004] Therefore, a circular fuel cell bipolar plate is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of circular fuel cell bipolar plate to solve the problems presented in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of circular fuel cell bipolar plate, including device shell,

[0007] The top of the device shell is hinged with a cover plate, the front of the device shell is provided with a connecting port, the bottom of the cover plate is fixed with a connecting port, and the bottom of the connecting port is fixed with a moving plate;

[0008] The inside of the device shell is movably provided with an electrode plate body, and the two sides of the electrode plate body are fixed with a reactant channel area, the electrode plate body and reactant channel area are provided with multiple groups, a fixed partition is fixed in the middle of every two groups of reactant channel areas, multiple groups of electrode plate bodies are fixed with connecting plates on both sides, square lugs are arranged on both sides of the fixed partition, and square grooves are fixed on one side of the connecting plate.

[0009] Preferably, the bottom of the moving plate is close to the top of the reactant channel area.

[0010] Preferably, the connecting plate and square lug are connected by bolts.

[0011] Preferably, the connecting plate is symmetrically provided with multiple groups, and multiple groups of connecting plates are symmetrically distributed.

[0012] Preferably, square grooves are arranged on both sides of the top and bottom of the square lug, and square grooves are slidably inserted with square grooves.

[0013] Preferably, the square sliding grooves are provided in multiple groups, and the multiple groups of the square sliding grooves are symmetrically fixed on one side of the connecting plate close to the square protrusions.

[0014] The utility model provides a circular fuel cell bipolar plate has the following beneficial effects:

[0015] Through the cooperation of the cover plate, the moving plate and the spring, the purpose of reducing loosening during use can be achieved, uniform pressure distribution is provided, the close contact between the bipolar plate units is ensured, the risk of poor contact is reduced, loosening caused by vibration or thermal expansion can be effectively eliminated, better structural strength and stability can be provided, loosening in the working state is reduced, and the safety of use is improved.

[0016] Through the cooperation of the electrode plate body, the fixed partition plate, the connecting plate, the square protrusions and the square sliding grooves, the purpose of keeping the use position stable can be achieved, stress and vibration that can be encountered during assembly and operation can be borne, the fuel cell is more complete during use, displacement and deviation after long-term use are effectively reduced, a plurality of fuel cell bipolar plates can be kept stable in the use position, and the stability of use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0018] Figure 1 It is a structure front view schematic diagram of the utility model;

[0019] Figure 2 It is a structure front view schematic diagram of the utility model;

[0020] Figure 3 It is a cover plate and moving plate structure schematic diagram of the utility model;

[0021] Figure 4 It is a structure front view schematic diagram of the utility model;

[0022] Figure 5 It is a structure front view schematic diagram of the utility model Figure 4 .

[0023] In the drawing: 1, device shell; 2, cover plate; 3, connecting port; 4, moving plate; 5, electrode plate body; 6, spring; 7, reactant passage area; 8, connecting plate; 9, fixed partition plate; 10, square protrusion; 11, square sliding groove. Detailed implementation method:

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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] Example 1

[0026] like Figures 1 to 3 As shown, this embodiment proposes a circular fuel cell bipolar plate, including a cover plate 2 hinged to the top of the device housing 1, a connection port 3 opened on the front of the device housing 1, a connection port 3 fixed at the bottom of the cover plate 2, and a movable plate 4 fixed at the bottom of the connection port 3; the bottom of the movable plate 4 is close to the top of the reactant channel region 7.

[0027] The electrode plate body 5 and reactant channel region 7 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0028] In the above embodiment, during use, the assembled electrode plate bodies 5 are placed in the device housing 1, and the two sets of connecting ends of the battery bipolar plates are passed through the connecting ports 3 so that the anode and cathode are connected to the corresponding parts. Then, the hinged cover plate 2 is closed. As the cover plate 2 closes and falls, it drives the moving plate 4 and the spring 6 to fall synchronously. Then, the spring 6 and the moving plate 4 move according to the height and number of battery bipolar plates. Finally, the moving plate 4 moves upward, so that the multiple sets of springs 6 are retracted by force, which can adapt to the use of battery bipolar plates of different heights.

[0029] Example 2

[0030] like Figure 4 and Figure 5As shown, based on the same concept as the above embodiment, the embodiment also proposes that the inside of the device shell 1 is movably provided with the electrode plate body 5, and the two sides of the electrode plate body 5 are fixedly provided with the reactant channel area 7, and the electrode plate body 5 and the reactant channel area 7 are provided with multiple groups, and a fixed partition plate 9 is fixedly arranged between every two groups of the reactant channel area 7, and the two sides of the multiple groups of the electrode plate body 5 are fixedly provided with the connecting plate 8, and the two sides of the fixed partition plate 9 are provided with the square protrusion 10, and one side of the connecting plate 8 is fixedly provided with the square sliding groove 11; the connecting plate 8 and the square protrusion 10 are connected through bolts; the connecting plate 8 is symmetrically provided with multiple groups, and the multiple groups of the connecting plate 8 are symmetrically distributed; the two sides of the top end and the bottom end of the square protrusion 10 are provided with the square groove, and the square sliding groove 11 is slidingly arranged in the square groove; the square sliding groove 11 is provided with multiple groups, and the multiple groups of the square sliding groove 11 are symmetrically fixed on the side close to the connecting plate 8 and the square protrusion 10.

[0031] In the above embodiment, during use, the multiple groups of the electrode plate body 5 and the fixed partition plate 9 are assembled, one group of the fixed partition plate 9 is arranged between every two groups of the electrode plate body 5, so that the multiple groups of the electrode plate body 5 and the square protrusion 10 are placed in alignment, then when the electrode plate body 5 and the fixed partition plate 9 are placed, the multiple groups of the connecting plate 8 and the square sliding groove 11 at the bottom end and the top end of the square protrusion 10 are inserted into the square grooves at the upper end and the lower end of the corresponding square protrusion 10, and finally the use positions of the multiple groups of the electrode plate body 5 and the fixed partition plate 9 are fixed through bolts.

[0032] The above is the whole working principle of the utility model.

[0033] Finally, it should be pointed out that: first of all, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between the two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0034] Secondly: the utility model discloses the embodiment only relates to the structure involved in the embodiment, and other structures can refer to the usual design, and under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0035] Finally: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A circular fuel cell bipolar plate, comprising a device shell (1), characterized in that: the top end of the device shell (1) is hinged with a cover plate (2), the front of the device shell (1) is provided with a connecting port (3), the bottom end of the cover plate (2) is fixed with the connecting port (3), and the bottom end of the connecting port (3) is fixed with a moving plate (4); the inside of the device shell (1) is movably provided with an electrode plate body (5), and the two sides of the electrode plate body (5) are both fixed with a reactant channel area (7), the electrode plate body (5) and the reactant channel area (7) are both provided with multiple groups, a fixed partition plate (9) is fixed in the middle of every two groups of the reactant channel area (7), the two sides of the multiple groups of the electrode plate body (5) are fixed with a connecting plate (8), the two sides of the fixed partition plate (9) are provided with a square protrusion (10), and one side of the connecting plate (8) is fixed with a square sliding groove (11).

2. A circular fuel cell bipolar plate according to claim 1, wherein: The bottom end of the moving plate (4) is close to the top end of the reactant channel area (7).

3. A circular fuel cell bipolar plate as in claim 1, wherein: The connecting plate (8) and the square protrusion (10) are connected through bolts.

4. A circular fuel cell bipolar plate as in claim 1, wherein: The connecting plate (8) is symmetrically provided with multiple groups, and the multiple groups of the connecting plate (8) are symmetrically distributed.

5. A circular fuel cell bipolar plate as in claim 1, wherein: The top end and the bottom end of the square protrusion (10) are both provided with a square groove, and a square sliding groove (11) is slidably inserted into the square groove.

6. A circular fuel cell bipolar plate as in claim 1, wherein: The square sliding groove (11) is provided with multiple groups, and the multiple groups of the square sliding groove (11) are symmetrically fixed on the side close to the connecting plate (8) and the square protrusion (10).

Images