JP2014002859A - Inspection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate carry-in and carry-out of a unit cell into and out of an inspection device.SOLUTION: An inspection device for performing power generation inspection on a unit cell of a fuel battery comprises: a plurality of intermediate plates which are arranged in a direction perpendicular to the vertical direction, and adjacent two of which hold the unit cell by sandwiching it therebetween; a fastening device for fastening the plurality of intermediate plates to the unit cell; and a power generation evaluation device, connected to the unit cell, for evaluating the power generation properties of the unit cell. The intermediate plates each include: a cooling water channel in the inside; and a first protruding member, arranged at a lower portion in the vertical direction of a first surface of the intermediate plates, for supporting the unit cell from below.

Description

  The present invention relates to an inspection device for inspecting a single cell of a fuel cell.

  An inspection apparatus for a fuel cell is known (Patent Document 1). In this inspection apparatus, a current collector plate is disposed on a first end plate, a plurality of single cells are disposed on the current collector plate to form a stack, and the stack is pressed by a pressure cylinder.

JP 2008-84839 A

  However, the conventional inspection apparatus stacks the single cells upward along the guide plate, and does not consider the ease of carrying in and out of the single cells. In addition, there is a problem that the single cells are displaced when the single cells are stacked on the stack or pressed. In addition, since the cooling water is allowed to flow through the manifold inside the single cell stack, the single cell may get wet by moisture remaining inside the manifold when the fastening is performed every time the inspection is completed. In such a case, there has been a problem that the entire inspection time is required by the operation of wiping off the moisture of the wet single cell, and the inspection cost increases. As described above, in the fuel cell inspection apparatus, it has been desired to shorten the inspection time, reduce the cost, facilitate the inspection, and improve the usability.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms.

(1) According to one aspect of the present invention, an inspection device for inspecting a single cell of a fuel cell is provided. The inspection apparatus includes a plurality of intermediate plates arranged in a direction perpendicular to a vertical direction, the intermediate plates holding a single cell between two adjacent intermediate plates among the plurality of intermediate plates. And a fastening device that fastens the plurality of intermediate plates and the single cell, and a power generation evaluation device that is connected to the single cell and evaluates the power generation characteristics of the single cell. A cooling water flow path and a first convex member that is provided at a lower portion in the vertical direction of the first surface of the intermediate plate and supports the single cell from below. According to the inspection apparatus of this aspect, since the single cell can be prevented from falling by being supported by the first convex member at the time of carrying in between the two intermediate plates of the single cell, the single cell is interposed between the two intermediate plates of the single cell. Loading and unloading are easy.

(2) In the inspection apparatus according to the above aspect, the first convex member may support a lower portion and restrict a position of the single cell in the left-right direction. According to the inspection device of this embodiment, the first convex member supports the lower portion and restricts the position of the single cell in the left-right direction. Therefore, when the single cell is carried between the two intermediate plates, the single cell Can be easily aligned.

(3) In the inspection apparatus according to the above aspect, there are two first convex members, and the two first convex members may regulate the left and right positions of the single cell, respectively. Good. According to the inspection apparatus of this embodiment, there are two first convex members, and the two first convex members regulate the positions of the single cell in the left direction and the right direction, respectively. The size of the member can be reduced as a whole.

(4) In the inspection apparatus according to the above aspect, the intermediate plate further includes a first convex member at a lower portion in a vertical direction of a second surface which is a surface opposite to the first surface of the intermediate plate. And a height from the first surface of the first convex member is determined by the two sheets when the single cell is inserted between the two intermediate plates. The depth of the first concave portion is larger than the interval between the intermediate plates, and the depth of the first concave member can be accommodated when the plurality of intermediate plates and the single cell are fastened. It may be. According to the inspection apparatus of this embodiment, the height from the first surface of the first convex member is larger than the interval between the two intermediate plates when the single cell is inserted between the two intermediate plates. Since it is formed, it is possible to prevent the single cell from dropping from between the two intermediate plates when the single cell is inserted between the two intermediate plates.

(5) In the inspection apparatus according to the above aspect, the intermediate plate further includes a second convex member at the upper part in the vertical direction of one of the first and second surfaces of the intermediate plate. The height of the second convex member from the one surface is the thickness of the single cell from the interval between the two intermediate plates when the single cell is inserted between the two intermediate plates. It may be smaller than the size obtained by subtracting. According to the inspection apparatus of this embodiment, since the second convex member is provided on the upper part in the vertical direction of one of the first and second surfaces of the intermediate plate, the single cell is used at the time of fastening. Can be prevented from shifting upward.

(6) In the inspection apparatus according to the above aspect, when the height of the second convex member from the one surface is larger than that of the single cell, the intermediate plate is on the side opposite to the one surface. The other surface has a second recess at a position facing the second convex member, and the depth of the second recess is determined when the plurality of intermediate plates and the single cell are fastened. The depth which can accommodate the front-end | tip part of a said 2nd convex-shaped member may be sufficient. According to the inspection apparatus of this aspect, the depth of the second concave portion is a depth that can accommodate the second convex member when the plurality of intermediate plates and the single cell are fastened. The second convex member does not stretch in a state where the distance between the plates is thicker than the thickness of the single cell.

(7) In the inspection apparatus according to the above aspect, the first or second convex member may have insulating properties. According to the inspection apparatus of this aspect, since the first or second convex member has insulating properties, the two intermediate plates are short-circuited via the first or second convex member. There is no.

(8) In the inspection apparatus of the above aspect, a cell monitor connector may be provided on the intermediate plate. According to the inspection apparatus of this embodiment, it is not necessary to reconnect the power generation evaluation apparatus and the single cell every time the inspection of the single cell is completed, and the time for reconnection can be shortened.

  In addition, this invention can be implement | achieved with various forms, for example, can be implement | achieved with forms, such as the fastening method of the single cell in an inspection apparatus other than an inspection apparatus.

It is explanatory drawing which shows typically the state before the fastening of the test | inspection apparatus concerning 1st Embodiment. It is explanatory drawing which shows typically the state after the fastening of the test | inspection apparatus concerning 1st Embodiment. It is an enlarged view which shows typically the intermediate board vicinity of 1st Embodiment. It is a top view which shows typically the intermediate | middle board of 1st Embodiment. It is explanatory drawing which shows the effect of this embodiment. It is an enlarged view which shows typically the intermediate plate vicinity of 2nd Embodiment.

First embodiment:
Drawing 1 is an explanatory view showing typically the state before conclusion of the inspection device concerning a 1st embodiment. The inspection apparatus 10 includes an intermediate plate 100, a first end plate 110, a second end plate 120, a pressing device 115, a shaft 130, a first link plate 160, and a second link plate 165. The first bolt 170, the second bolt 175, the first insulating plate 180, and the second insulating plate 190 are provided. There are a plurality of intermediate plates 100 arranged in a direction perpendicular to the vertical direction. A single cell 200 is inserted between two adjacent intermediate plates 100. The single cell 200 includes a membrane electrode assembly, a gas diffusion layer, and a separator plate. A first end plate 110 is disposed outside the outermost intermediate plate 100 via a first insulating plate 180, and a second end plate 120 is disposed via a second insulating plate 190, respectively. The A shaft 130 is connected to the second end plate 120, and the shaft 130 includes a second insulating plate 190, a plurality of intermediate plates 100, a first insulating plate 180, and a first end plate 110. , Through. The shaft 130 preferably passes through the four corners of the intermediate plate 100. If the shaft 130 penetrates the four corners of the intermediate plate 100, the shaft 130 does not get in the way when the single cell 200 is carried in and out. Further, it is preferable that the vertical and horizontal shafts 130 are spaced apart from each other in the vertical direction and horizontal direction of the single cell 200. In addition, it is preferable that the shaft 130 has insulation. A pressing device 115 that presses and fastens the intermediate plate 100 and the single cell 200 is provided outside the first end plate 110. In this specification, “fastening” means pressing the first end plate 110 toward the second end plate 120 by the pressing device 115 with the single cell 200 sandwiched between the intermediate plates 100. . The pressing device 115 is also referred to as a “fastening device”.

  One end of the first link plate 160 and one end of the second link plate 165 are attached to the intermediate plate 100 by a first bolt 170. In FIG. 1, the second link plate 165 is hatched to distinguish the two link plates 160 and 165. Each of the first link plate 160 and the second link plate 165 can rotate around the first bolt 170. Further, the other end of the first link plate 160 and the other end of the second link plate 165 are joined by a second bolt 175. Here, the second bolt 175 only joins the other end of the first link plate 160 and the other end of the second link plate 165, and is not joined to other members. The first link plate 160 and the second link plate 165 can rotate around the second bolt 175, respectively. The interval between the first bolt 170 and the second bolt 175 of the first link plate 160 and the interval between the first bolt 170 and the second bolt 175 of the second link plate 165 are equal to each other. In addition, since the 1st link board 160 and the 2nd link board 165 have connected the two intermediate | middle board 100, it is preferable to have insulation. The first link plate 160 and the second link plate 165 may be formed of an insulating material or may be covered with an insulating coating.

  The intermediate plate 100 includes a first convex member 140, a first concave portion 145, and a second convex member 150. The first convex member 140 is disposed at a lower portion in the vertical direction on one surface of the intermediate plate 100 that is in contact with the single cell 200, and the first concave portion 145 is disposed at a position corresponding to the first convex member 140 on the other surface. Is formed. In addition, a second convex member 150 is disposed on the upper portion of the surface in contact with the single cell 200 of the intermediate plate 100 in the vertical direction. When the single cell 200 is inserted between the two intermediate plates 100, the single cell 200 is supported by the first convex member 140 and does not come out below the inspection apparatus 10. When the interval between the two adjacent intermediate plates 100 is reduced by the pressing device 115, the first convex member 140 is inserted into the first concave portion 145 with the single cell 200 placed thereon. When the intermediate plate 100 and the single cell 200 are fastened, the second convex member 150 suppresses the upward displacement of the single cell 200. The first convex member 140 and the second convex member 150 are in contact with the opposing intermediate plate 100. Here, in order to avoid a short circuit between the two intermediate plates 100 via the first convex member 140 and the second convex member 150, the first convex member 140 and the second convex member 150 are: It is preferable to have insulation. For example, the first convex member 140 and the second convex member 150 may be formed of an insulating material or may be covered with an insulating material.

  The intermediate plate 100 includes four through holes 101 to 104 and a cooling water channel 105. The four through holes 101 to 104 connect two surfaces in contact with the single cell 200. The cooling water channel 105 is formed so as to be parallel to the surface in contact with the single cell 200. Similarly, the second end plate 120 is also provided with four through holes 121 to 124, and the second insulating plate 190 is also provided with four through holes 191 to 194. When the intermediate plate 100 and the single cell 200 are fastened, the through hole 101 of the intermediate plate 100, the through hole 191 of the second insulating plate 190, and the through hole 121 of the second end plate communicate with each other. A fuel gas supply manifold is formed. Similarly, the through hole 102 in the intermediate plate 100, the through hole 192 in the second insulating plate 190, the through hole 122 in the second end plate 120, the through hole 103 in the intermediate plate 100, and the through hole in the second insulating plate 190. 193 and the through hole 123 of the second end plate 120, the through hole 104 of the intermediate plate 100, the through hole 194 of the second insulating plate 190, and the through hole 124 of the second end plate 120 are respectively an oxidizing gas supply manifold. Forming a fuel gas discharge manifold and an oxidant gas discharge manifold. As described above, the supply and discharge of the fuel gas and the oxidant gas using the fuel gas supply manifold, the oxidant gas supply manifold, the fuel gas discharge manifold, and the oxidant gas discharge manifold penetrating the intermediate plate 100 are performed in the actual use state. This is for simulating the method of supplying and discharging the fuel gas and the oxidizing gas of the fuel cell.

  The cooling water channel 105 is provided for cooling the single cell 200. As will be described later, the cooling water is supplied to the cooling water flow path 105 of each intermediate plate 100 via an external pipe. The reason why the cooling water channel 105 is provided in the intermediate plate 100 is to prevent the single cell 200 from being wetted by the cooling water when the fastening is released. When the unit cell 200 gets wet, it is necessary to remove moisture adhering to the unit cell 200 by wiping work. When the inspection device 10 inspects the single cell 200, the inspector performs fastening and unfastening of the intermediate plate 100 and the single cell 200 every time the inspection is completed. It leads to increase. In this embodiment, since the cooling water passes through the inside of the intermediate plate 100, even if the inspector releases the fastening of the intermediate plate 100 and the single cell 200 after the inspection, the cooling water does not leak, and the single cell 200 is cooled. Does not get wet with water. Therefore, no wiping work is required, and the inspection time can be shortened.

  Drawing 2 is an explanatory view showing typically the state after conclusion of the inspection device concerning a 1st embodiment. FIG. 2 shows peripheral devices that are not shown in FIG. 1 because the drawing becomes complicated. The inspection device 10 further includes a fuel tank 300, an air pump 400, a pump 500, a radiator 510, and a power generation evaluation device 600.

  The fuel tank 300 is a tank for storing fuel gas and supplying it to the single cell 200, and is connected to the through hole 121 of the second end plate 120 by a fuel gas supply pipe 301. The air pump 400 is a device for taking in air, compressing and supplying the air, and is connected to the through hole 122 of the second end plate 120 by an oxidizing gas supply pipe 402. A fuel gas exhaust pipe 303 is connected to the through hole 123 of the second end plate 120, and an oxidizing gas exhaust pipe 404 is connected to the through hole 124.

  The pump 500 is a pump for supplying cooling water to the cooling water flow path 105 of the intermediate plate 100. The pump 500 is connected to the cooling water flow path 105 by a cooling water supply pipe 505 and a cooling water discharge pipe 506. On the cooling water supply pipe 505, a radiator 510 for cooling the cooling water is provided. The radiator 510 may be provided on the cooling water discharge pipe 506.

  The power generation evaluation device 600 is connected to each intermediate plate 100 by a cable 601. The power generation evaluation device 600 acquires the voltage and current of the single cell 200 via the intermediate plate 100 and the cable 601. The intermediate plate 100 may include a cell monitor for monitoring the voltage and current of the single cell 200, and the cell monitor and the power generation evaluation device 600 may be connected by a cable 601. The power generation evaluation apparatus 600 may acquire and evaluate not only the voltage and current generated by the single cell 200 but also the impedance of the single cell 200, the temperature of the single cell 200 during power generation, and the like.

  In a state where the intermediate plate 100 and the single cell 200 are fastened by the pressing device 115, the first link plate 160 and the second link plate 165 are rotated in opposite directions as compared with FIG. Two adjacent first bolts 170 and second bolts 175 form an isosceles triangle having the second bolt 175 as a vertex. Comparing FIG. 1 and FIG. 2, the first link plate 160, the second link plate 165, the first bolt 170, and the second bolt 175 constitute an expansion / contraction mechanism. This expansion / contraction mechanism is called a link mechanism. By providing such a link mechanism, the inspection apparatus 10 can make the interval between the two adjacent intermediate plates 100 equal to each other when the fastening state shown in FIG. 1 is released.

  In a state where the single cell 200 is compressed between the intermediate plates 100 by being pressed by the pressing device 115, the first convex member 140 is inserted into the first concave portion 145. When the thickness of the single cell 200 is larger than the height of the second convex member 150, the second convex member 150 does not contact the adjacent intermediate plate 100. However, when the height of the second convex member 150 is larger than the thickness of the single cell 200, the tip of the second convex member 150 is in contact with the adjacent intermediate plate 100 and is stretched. A gap is created between 100 and the single cell 200. Therefore, it is preferable to provide a concave portion (second concave portion 155 described later) at a position facing the second convex member 150 of the adjacent intermediate plate 100.

  FIG. 3 is an enlarged view schematically showing the vicinity of the intermediate plate of the first embodiment. In the first embodiment, the first convex member 140 and the second convex member 150 are provided on the first surface 100a of the intermediate plate 100, and the first concave portion 145 and the second concave portion are provided. 155 is provided on the second surface 100 b of the intermediate plate 100. The second concave portion 155 is a concave portion provided at a position facing the second convex member 150. The height of the first convex member 140 is H1, the height of the second convex member 150 is H2, and the first surface 100a and the second surface 100b of the two adjacent intermediate plates 100 are fastened. The interval at the time of release is Sp1, the interval at the time of releasing the fastening between the tip of the second convex member 150 and the second surface 100b is Sp2, the depth of the first recess 145 is D1, and the interval of the second recess 155 Let the depth be D2. The thickness of the single cell 200 is T1.

The height H1 of the first convex member 140 and the distance Sp1 between the two intermediate plates 100 when the fastening is released may satisfy the following formula (1).
H1> Sp1 (1)
Equation (1) indicates that the height H1 of the first convex member 140 is larger than the interval Sp1 between the two intermediate plates 100 when the fastening is released, that is, when the single cell 200 is carried in and out. Represents. By satisfying the formula (1), the single cell 200 can be supported by the first convex member 140 when the single cell 200 is inserted between the two intermediate plates 100.

Moreover, you may satisfy | fill the following formula | equation (2).
H1 <D1 + T1 (2)
Formula (2) represents that the height H1 of the first convex member 140 is smaller than the sum of the depth D1 of the first concave portion 145 and the thickness T1 of the single cell 200. When the intermediate plate 100 and the single cell 200 are fastened by satisfying the expression (2), the first convex member 140 is accommodated in the first concave portion 145, so that the first convex member 140 is stretched. Thus, the fastening between the intermediate plate 100 and the single cell 200 is not hindered.

Moreover, you may satisfy | fill the following formula | equation (3).
Sp2> T1 (3)
The expression (3) indicates that when the fastening is released, that is, when the single cell 200 is loaded and unloaded, the distance Sp2 between the tip of the second convex member 150 and the second surface 100b is equal to the single cell 200. The thickness is greater than T1. By satisfy | filling Formula (3), it becomes easy to carry in and carry out the single cell 200 from the clearance gap between the 2nd convex-shaped member 150 and the 2nd surface 100b.

Either the height H2 of the second convex member 150 or the thickness T1 of the single cell 200 may be larger, but when the height H2 is larger, the following equation (4) is satisfied. Also good.
H2 <T1 + D2 (4)
Expression (4) indicates that the height H2 of the second convex member 150 is smaller than the combined size of the thickness T1 of the single cell 200 and the depth D2 of the second concave portion 155. By satisfying Expression (4), when the intermediate plate 100 and the single cell 200 are fastened, the second convex member 150 is accommodated in the second concave portion 155, so that the second convex member 150 is stretched. Thus, the fastening between the intermediate plate 100 and the single cell 200 is not hindered. When the thickness T1 of the single cell 200 is larger than the height H2 of the second convex member 150, the equation (4) is satisfied even if D2 = 0 in the equation (4). The recess 155 may not be provided.

  FIG. 4 is a plan view schematically showing the intermediate plate of the first embodiment. Two first convex members 140 are provided on the left and right sides of the intermediate plate 100 in the vertical direction, and the second convex members 150 are provided in the central portion of the intermediate plate 100 in the vertical direction. In addition, although the 1st recessed part 145 and the 2nd recessed part 155 are respectively formed in the position corresponding to the 1st convex member 140 and the 2nd convex member 150, the 1st recessed part 145 and the 2nd 4 is described in FIG. 4, the first convex member 140 and the second convex member 150 overlap with each other, making it difficult to see the figure. Therefore, the first concave portion 145 and the second concave portion 145 in FIG. The description of the recess 155 is omitted. The single cell 200 is inserted into a region surrounded by the two first convex members 140 and the second convex member 150. The two first convex members 140 restrict the position of the single cell 200 in the left direction or the right direction, respectively, and restrict the position of the single cell 200 in the downward direction. The second convex member 150 regulates the upward position of the single cell 200.

The intermediate plate 100 has four through holes 101 to 104 at positions overlapping the single cell 200 and has through holes 108 at four corners. When the intermediate plate 100 and the single cell 200 are fastened, as described above, the four through holes 101 to 104 form a fuel gas supply manifold, an oxidizing gas supply manifold, a fuel gas discharge manifold, and an oxidizing gas discharge manifold, respectively. To do.
The through hole 108 is a through hole for passing the shaft 130 (FIGS. 1 and 2). The interval W1 between the two through holes 108 in the horizontal direction is preferably larger than the horizontal size W2 of the single cell 200.

  The intermediate plate 100 includes the cooling water channel 105 as described above. The cooling water channel 105 is formed so as not to overlap the four through holes 101 to 104 and the first convex member 140. A first concave portion 145 is provided on the opposite side of the first convex member 140. Since the depth of the first concave portion 145 is deep, by adopting a configuration in which the first convex member 140 is divided into left and right parts, the single cell 200 is overlapped and the first concave portion 145 is not overlapped. Thus, the cooling water channel 105 can be formed. In addition, in the case of a configuration in which the first convex member 140 is divided into two portions on the left and right, the first concave portion 145 is divided into two portions on the left and right. In addition, a second concave portion 155 is provided on the opposite side of the second convex member 150. However, since the depth of the second concave portion 155 is relatively small, the second convex member 150 (first It is easy to form the cooling water flow path 105 at a position overlapping the second recess 155). Similarly, the second convex member 150 and the second concave portion 155 may be configured to be divided into left and right parts.

  FIG. 5 is an explanatory diagram showing the effect of this embodiment. When there is no conventional intermediate plate, the single cell is detached, the cable 601 (FIG. 2) is detached from the single cell 200, the temperature of the cooling water is adjusted, the cooling water is extracted from the manifold, and the water adhering to the single cell 200 is wiped off. The time was taken. That is, in the case where there is no conventional intermediate plate, the single cells 200 are stacked on top, so that the single cells can only be stacked one by one. Therefore, it took time to stack the single cells 200. On the other hand, in this embodiment, since the single cell 200 is inserted between the two intermediate plates 100, all the single cells 200 can be loaded and unloaded at a time. Therefore, the time for carrying in and carrying out the single cell 200 can be greatly shortened. Moreover, since the alignment of the single cell 200 can be performed using the first convex member 140 and the second convex member 150, it is easy.

  In the case where there is no conventional intermediate plate, the cable 601 is directly connected to the single cell 200. On the other hand, in this embodiment, the cable 601 is connected to the intermediate plate 100, and the single cell 200 is connected to the power generation evaluation apparatus 600 via the intermediate plate 100. When the cable 601 is directly connected to the single cell 200, the cable 601 is removed from the single cell 200 every time the inspection of the single cell 200 is completed, and the cable 601 is connected to the single cell 200 to be inspected next. This work took time. Moreover, since the single cell 200 is replaced at the end of each inspection, it is easier to connect the cable 601 via the intermediate plate 100 than to connect the cable 601 directly to the single cell 200. Further, in the case where there is no conventional intermediate plate, it is difficult to inspect and inspect each single cell 200. On the other hand, in this embodiment, the cable 601 is connected to the intermediate plate 100, and the single cell 200 is connected to the power generation evaluation device 600 via the intermediate plate 100. Therefore, the inspection is finished every time the inspection of the single cell 200 is finished. It is not necessary to remove the cable 601 from the single cell 200 and connect the cable 601 to the single cell 200 to be inspected next, and the preparation time before the inspection and the processing time after the inspection can be shortened. The two single cells 200 are separated by the intermediate plate 100. Therefore, each single cell 200 can be separated and inspected by taking the difference in voltage or current between the two cables 601 connected to the adjacent intermediate body 100. Although the cable 601 is connected to the intermediate plate 100, a cell monitor connector may be permanently installed on the intermediate plate 100, and the cable 601 and the cell monitor connector may be connected.

  Further, in the case where there is no conventional intermediate plate, after the inspection is finished, the inspector removes the cooling water from the manifold and then releases the fastening of the single cell 200. However, some cooling water remains inside the manifold. Therefore, since this some cooling water leaks and wets the single cell 200, it is necessary to wipe the wet single cell 200 after the inspection. However, in this embodiment, since the cooling water passes through the cooling water flow path 105 inside the intermediate plate 100, the cooling water does not leak even if the fastening of the single cell 200 and the intermediate plate 100 is released, and it becomes wet after the inspection. Further, the wiping work for the single cell 200 is not necessary. Further, since there is no need to remove the cooling water from the intermediate plate 100, the temperature of the single cell 200 at the time of inspection can be adjusted in a short time, and the adjustment is easy.

  As described above, according to this embodiment, the single cell detachment, the cable 601 (FIG. 2) detachment to the single cell 200, the temperature adjustment of the cooling water, the temperature from the manifold, which are necessary when there is no conventional intermediate plate, are performed. The time for draining the cooling water and wiping off the water adhering to the single cell 200 can be reduced or greatly shortened. Further, by using the first convex member 140 and the second convex member 150, the unit cell 200 can be easily aligned. That is, according to the inspection apparatus of the present embodiment, the time for preparation for inspection or the time for post-processing after inspection can be reduced, and the inspection time as a whole can be shortened.

Second embodiment:
FIG. 6 is an enlarged view schematically showing the vicinity of the intermediate plate of the second embodiment. The difference from the first embodiment shown in FIG. 3 is the positions of the second convex member 150 and the second concave portion 155. In the first embodiment, the first convex member 140 and the second convex member 150 are on the first surface 100a of the intermediate plate 100, and the first concave portion 145 and the second concave portion 155 are intermediate. Although it exists in the 2nd surface 100b of the board 100, in 2nd Embodiment, the 1st convex-shaped member 140 and the 2nd recessed part 155 exist in the 1st surface 100a of the intermediate | middle board 100, and a 2nd convex The member 150 and the first recess 145 are on the second surface 100 b of the intermediate plate 100. By adopting such a configuration, the second embodiment has the following advantages compared to the first embodiment.

The height H1 of the first convex member 140 may be smaller than that of the first embodiment. Specifically, instead of the above formula (1), the height H1 of the first convex member 140 can be reduced so as to satisfy the following formula (5).
H1 + H2> Sp1 (5)
Formula (5) is the sum of the height H1 of the first convex member 140 and the height H2 of the second convex member 150 of the two intermediate plates 100 when the single cell 200 is carried in and out. It represents that it is larger than the interval Sp1. If the single cell 200 is inserted in the vertical direction straight when the height H1 of the first convex member 140 is inserted between the two intermediate plates 100 of the single cell 200 by satisfying the expression (5), the first The single cell 200 can be supported by one convex member 140.

Variations:
In the above embodiment, if the first convex member 140 is provided, the unit cell 200 can be supported from below, so the first concave portion 145, the second convex member 150, and the second concave portion 155 are not provided. May be. In this case, the height H1 of the first convex member 140 is preferably the same as the thickness T1 of the single cell 200 or slightly smaller than the thickness T1 of the single cell 200. In addition, the interval Sp1 between the two intermediate plates when the fastening is released is preferably not less than the thickness T1 of the single cell 200 and less than twice the size of the thickness T1 of the single cell 200. .

  In the above embodiment, the first convex member 140 and the first concave portion 145 may be provided, and the second convex member 150 and the second concave portion 155 may not be provided. The 2nd convex member 150 and the 2nd recessed part 155 are for suppressing the shift | offset | difference to the upper direction of a single cell reliably. Since the single cell 200 is lowered vertically by gravity, if the first convex member 140 and the first concave portion 145 are provided, the second convex member 150 and the second concave portion 155 are not provided. In addition, the single cell 200 can be supported from below.

  In the above embodiment, when the height H2 of the second convex member 150 is smaller than the thickness T1 of the single cell 200, the second concave portion 155 may be omitted.

  In the above-described embodiment, the first convex member 140 includes a first convex member that restricts the lower and left directions of the single cell 200, and a first convex member that restricts the lower and right directions of the single cell 200. Although it is the structure provided with these two 1st convex-shaped members, you may regulate both the downward direction of the single cell 200, and right-and-left direction with the 1st 1st convex-shaped member 140. FIG. In addition, the first convex member that restricts the lower and right directions of the single cell 200 may be divided into a first convex member that restricts only the lower portion and a first convex member that restricts the right direction. The same applies to the left direction.

  In the above-described embodiment, the first convex member 140 and the second convex member 150 have been described as preferably insulating. For example, the first convex member 140 and the second convex member 150 If the convex member 150 is not in contact with the adjacent intermediate plate 100, it may not have insulation. For example, as a case where the first convex member 140 and the second convex member 150 do not contact the adjacent intermediate plate 100, the height H1 of the first convex member 140 and the second convex member 150 A case where the height H2 is smaller than the thickness T1 of the single cell 200 is mentioned. Even if the height H1 of the first convex member 140 is larger than the thickness T1 of the single cell 200, the size of the first concave portion 145 can be accommodated without contacting the first convex member 140. The case where it has a magnitude | size is mentioned.

  The embodiments of the present invention have been described above based on some embodiments. However, the embodiments of the present invention described above are for facilitating the understanding of the present invention and limit the present invention. It is not a thing. The present invention can be changed and improved without departing from the spirit and scope of the claims, and it is needless to say that the present invention includes equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Inspection apparatus 100 ... Intermediate | middle board 100a ... 1st surface 100b ... 2nd surface 101-104 ... Through-hole 105 ... Cooling water flow path 108 ... Through-hole 110 ... 1st end plate 115 ... Pressing device 120 ... 2nd End plate 121-124 ... through hole 130 ... shaft 140 ... first convex member 145 ... first concave member 150 ... second convex member 155 ... second concave member 160 ... first link plate 165 ... first Two link plates 170 ... first bolt 175 ... second bolt 180 ... first insulating plate 190 ... second insulating plate 191 to 194 ... through hole 200 ... single cell 300 ... fuel tank 301 ... fuel gas supply pipe 303 ... Fuel gas exhaust pipe 400 ... Air pump 402 ... Oxidizing gas supply pipe 404 ... Oxidizing gas exhaust pipe 500 ... Pump 505 ... Cooling water supply pipe 506 ... Cooling water discharge 510 ... Radiator 600 ... power generation evaluation device 601 ... cable

Claims (8)

An inspection device that performs power generation inspection of a single cell of a fuel cell,
A plurality of intermediate plates arranged in a direction perpendicular to the vertical direction, a plurality of intermediate plates holding a single cell between two adjacent intermediate plates of the plurality of intermediate plates;
A fastening device for fastening the plurality of intermediate plates and the single cell;
A power generation evaluation device that is connected to the single cell and evaluates the power generation characteristics of the single cell;
With
The intermediate plate is
A cooling water flow path inside,
An inspection apparatus comprising a first convex member provided at a lower portion in the vertical direction of the first surface of the intermediate plate and supporting the single cell from below. The inspection apparatus according to claim 1,
The first convex member supports the lower part and restricts the position of the single cell in the left-right direction. The inspection apparatus according to claim 2,
There are two first convex members,
The two first convex members are inspection devices that regulate the left and right positions of the unit cell, respectively. In the inspection apparatus according to any one of claims 1 to 3,
The intermediate plate further includes:
A first concave portion is provided at a position facing the first convex member at the lower portion in the vertical direction of the second surface, which is the surface opposite to the first surface of the intermediate plate,
The height from the first surface of the first convex member is formed larger than the interval between the two intermediate plates when the single cell is inserted between the two intermediate plates,
The depth of said 1st recessed part is an inspection apparatus which is a depth which can accommodate a said 1st convex member when these intermediate | middle plates and the said single cell are fastened. In the inspection apparatus according to any one of claims 1 to 4,
The intermediate plate further includes:
A second convex member on the upper part in the vertical direction of one of the first and second surfaces of the intermediate plate;
The height of the second convex member from the one surface is obtained by subtracting the thickness of the single cell from the interval between the two intermediate plates when the single cell is inserted between the two intermediate plates. Inspection device smaller than the size. The inspection apparatus according to claim 5, wherein
When the height from the one surface of the second convex member is larger than the single cell,
The intermediate plate has a second concave portion at a position facing the second convex member on the other surface opposite to the one surface,
The depth of said 2nd recessed part is an inspection apparatus which is a depth which can accommodate the front-end | tip part of a said 2nd convex member when these intermediate | middle plates and the said single cell are fastened. In the inspection apparatus according to any one of claims 1 to 6,
The inspection apparatus, wherein the first or second convex member has an insulating property. In the inspection apparatus according to any one of claims 1 to 7,
An inspection apparatus, wherein the intermediate plate is provided with a cell monitor connector.

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