Bipolar plate drying device

Abstract

The utility model provides a bipolar plate drying device which comprises a box body and a plurality of supporting jigs, the multiple supporting jigs can be stacked in the box body in the height direction, each supporting jig comprises a bearing plate used for bearing a bipolar plate and a supporting structure arranged on the bearing face of the bearing plate, and the supporting height of each supporting structure can be adjusted; the distance between the adjacent bearing plates is adjusted, a plurality of sets of ventilation holes are formed in the bearing plates in the length direction of the bearing plates at equal intervals, and each set of ventilation holes comprises a plurality of holes formed in the width direction of the bearing plates at intervals.

Description

Technical Field

[0001] The present disclosure relates to the technical field of fuel cell preparation, and in particular to a bipolar plate drying device. Background Art

[0002] Bipolar plates are a crucial component of fuel cell stack systems. The drying of the glue lines on the plates directly determines the stack's sealing performance. The bipolar plate glue line drying process involves placing the glue-applied products on a drying jig and stacking them into a magazine using a robotic arm. Once the magazine is full, it is transferred to a tunnel oven, where hot air flows between the drying jigs to rapidly dry the glue lines.

[0003] Different bipolar plate thicknesses require different spacing between jigs. If the spacing between drying jigs is too small, the hot air will not flow well between the jigs, resulting in poor drying of the glue line and impacting the quality of the finished product. If the spacing between jigs is too large, the number of bipolar plates that can be dried in a single batch will be reduced, resulting in lower production efficiency. However, the spacing between existing drying jigs cannot be adjusted. Therefore, when the thickness of the bipolar plate changes, a new set of jigs with the appropriate spacing must be customized to meet production requirements, increasing production costs. Utility Model Content

[0004] One technical problem to be solved by the present disclosure is that the jig can only meet the production requirements of bipolar plates of one thickness, which increases production costs.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present disclosure provides a bipolar plate drying device including a box body; and multiple support jigs, which can be stacked in the height direction in the box body, wherein the support jig includes a supporting plate for supporting the bipolar plate and a supporting structure arranged on the supporting surface of the supporting plate, the supporting height of the supporting structure can be adjusted to adjust the spacing between adjacent supporting plates, and multiple groups of ventilation holes are evenly spaced on the supporting plate along the length direction of the supporting plate, and each group of ventilation holes includes multiple holes spaced along the width direction of the supporting plate.

[0006] In some embodiments, the support structure may include a supporting cylinder and a push rod. The first end face in the axial direction of the supporting cylinder is provided with a blind groove that is adapted to the outer contour shape of the push rod and the groove depth extends toward the second end face in the axial direction of the supporting cylinder. The push rod is arranged in the blind groove and can extend or retract into the blind groove along the axial direction of the supporting cylinder. The supporting cylinder can lock the length of the push rod extending out of the blind groove.

[0007] In some embodiments, the support structure includes a first locking member and a second locking member that can be locked to each other, the first locking member is arranged on the support cylinder, and the second locking member is arranged on the top rod. When the first locking member and the second locking member are unlocked, the top rod is allowed to move relative to the support cylinder.

[0008] In some embodiments, the first locking member includes two tightening screws, the second locking member includes multiple locking grooves that are adapted to the head shape of the tightening screws, and the second locking member includes multiple locking grooves that are adapted to the head shape of the tightening screws, and the multiple locking grooves are arranged on opposite sides of the push rod along the axial direction of the push rod.

[0009] In some embodiments, the cross-sectional area of the locking groove decreases along the depth direction, and the insertion end of the tightening screw is tapered.

[0010] In some embodiments, the distance between adjacent locking slots is zero, so as to improve the accuracy of changing the extension and retraction amount of the push rod.

[0011] In some embodiments, a through hole for the first locking member to pass through is provided on a side surface of the supporting cylinder and at one end close to the first end surface.

[0012] In some embodiments, the support structure is detachably connected to the supporting surface of the supporting plate.

[0013] In some embodiments, the second end surface of the supporting cylinder in the axial direction is provided with a connecting hole for connecting a connecting piece on the supporting plate.

[0014] In some embodiments, the contour shape of the supporting plate is adapted to the inner cavity shape of the box body to define the relative position of the supporting fixture and the box body.

[0015] Through the above technical solution, the bipolar plate drying device provided by the present invention adjusts the support height of the support structure to adjust the spacing between adjacent support plates stacked in the box body, avoiding the need to re-customize the jig with appropriate spacing after the thickness of the bipolar plate changes, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a three-dimensional diagram of a bipolar plate drying device according to an embodiment of the present disclosure;

[0018] Figure 2 yes Figure 1 Front view of the support structure of the bipolar plate drying device;

[0019] Figure 3 yes Figure 2 Cross-sectional view of the AA section of the middle support structure;

[0020] Figure 4 yes Figure 1 A three-dimensional diagram of the stacked bipolar plate drying device;

[0021] Figure 5 is a three-dimensional diagram of a bipolar plate drying device according to another embodiment of the present disclosure;

[0022] Figure 6 yes Figure 5 A three-dimensional diagram of the support structure of the bipolar plate drying device;

[0023] Figure 7 yes Figure 6 A bottom-up perspective view of the supporting structure;

[0024] Figure 8 yes Figure 5 A three-dimensional diagram of the stacked bipolar plate drying device.

[0025] Description of reference numerals:

[0026] 1. Load-bearing plate; 101. Ventilation hole; 2. Support structure; 201. Support cylinder; 202. Push rod; 203. Blind groove; 204. Jacking screw; 205. Locking groove; 206. Through hole; 207. Connecting hole; 208. First end face; 209. Second end face; 3. Grooving. DETAILED DESCRIPTION

[0027] The following embodiments of the present disclosure are further described in detail with reference to the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0028] The present disclosure provides these embodiments in order to make this disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0029] It should be noted that, in the description of this disclosure, unless otherwise specified, "plurality" means greater than or equal to two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are intended solely to facilitate and simplify the description of this disclosure, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] In addition, the terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements.

[0031] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure depending on the specific circumstances.

[0032] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0034] Example 1

[0035] refer to Figure 1 and Figure 4As shown, the bipolar plate drying device includes a box body and multiple supporting jigs, and the multiple supporting jigs can be stacked in the box body along the height direction, wherein the supporting jig includes a carrier plate 1 for supporting the bipolar plate and a supporting structure 2 arranged on the carrying surface of the carrier plate 1, and the supporting height of the supporting structure 2 can be adjusted to adjust the spacing between adjacent carrier plates 1, and multiple groups of ventilation holes 101 are evenly spaced on the carrier plate 1 along the length direction of the carrier plate 1, and each group of the ventilation holes 101 includes a plurality of holes spaced apart along the width direction of the carrier plate 1.

[0036] The support structure 2 is arranged on the surface of the carrier plate 1 for supporting the bipolar plate. The upper end of the support structure 2 can support the carrier plate 1 of another supporting fixture. By adjusting the height of the support structure 2, the distance between two adjacent carrier plates 1 can be adjusted to adapt to bipolar plates of different sizes and types.

[0037] Among them, a plurality of groups of ventilation holes 101 are arranged at equal intervals on the carrier plate 1 along the length direction of the carrier plate 1, and each group of ventilation holes 101 includes a plurality of holes arranged at intervals along the width direction of the carrier plate 1, so that hot air can flow between the stacked support jigs and the glue lines of the bipolar plates placed on the carrier plate 1 can be evenly heated.

[0038] In the present disclosure, the bipolar plate drying device adjusts the spacing between adjacent support plates 1 stacked in the box body by adjusting the support height of the support structure 2, thereby avoiding the need to re-customize the jig with appropriate spacing after the thickness of the bipolar plate changes; at the same time, it enables the maximum number of layers of support jigs for supporting bipolar plates to be stacked in the box body at one time, thereby improving drying efficiency and reducing production costs.

[0039] refer to Figure 1 As shown, three support structures 2 can be evenly spaced on the two long sides of the carrying surface of the carrier plate 1, and two support structures 2 can be spaced on each of the two wide sides to prevent the bipolar plates on the carrier plate 1 from falling off.

[0040] The support structures 2 on the long side and the wide side of the carrying surface may be symmetrically distributed about the center line of the carrying plate 1 in the corresponding direction, so as to improve the stability of the support jig during the stacking process.

[0041] Among them, the support heights of the support structures 2 located on the same supporting surface can be the same to ensure that the supporting plate 1 in each supporting fixture is parallel to the bottom surface of the box, preventing the bipolar plate from sliding due to the tilt of the supporting plate 1 during the drying process.

[0042] The support structure 2 in the present disclosure may have any suitable structure, such as Figure 2 In the illustrated embodiment, the support structure 2 may include a support cylinder 201 and a top rod 202 .

[0043] The first end surface 208 of the support cylinder 201 in the axial direction may be provided with a blind groove 203 which matches the external shape of the push rod 202 and has a groove depth extending toward the second end surface 209 in the axial direction of the support cylinder 201 .

[0044] The push rod 202 can be arranged in the blind groove 203 and extend out of or retract into the blind groove 203 along the axial direction of the supporting cylinder 201 to change the supporting height of the supporting structure 2 .

[0045] In addition, the support cylinder 201 can lock the length of the push rod 202 extending out of the blind groove 203 to prevent it from falling back into the support cylinder 201 due to its own gravity or the force driven by its top.

[0046] In addition, in some embodiments, the top rod 202 may be cylindrical or rectangular, etc.; the top rod 202 may also be set as a telescopic rod, and the sections of the telescopic rod may be locked by friction or snap-fit. It is worth noting that at this time, the top rod 202 can be welded to the first end face 208 of the support cylinder 201, and it is not absolutely necessary to set a blind groove 203 inside the support cylinder 201 to accommodate the top rod 202.

[0047] In some embodiments, as Figure 3 As shown, the support structure 2 may include a first locking member and a second locking member that can be locked to each other, the first locking member may be set on the support cylinder 201, and the second locking member may be set on the top rod 202, and the first locking member and the second locking member are unlocked to allow the top rod 202 to move relative to the support cylinder 201.

[0048] In some embodiments, the first locking member may include two tightening screws 204 , and the second locking member may include a plurality of locking grooves 205 that are adapted to the shape of the heads of the tightening screws 204 .

[0049] The plurality of locking grooves 205 may be arranged on both sides of the push rod 202 along the axial direction of the push rod 202 to increase the telescopic capacity of the push rod 202 .

[0050] In addition, in some other embodiments, the first locking member may include other numbers of tightening screws 204 . It is worth noting that the number of rows of locking grooves 205 on the push rod 202 is not less than the number of tightening screws 204 .

[0051] In some embodiments, the cross-sectional area of the locking groove 205 may decrease along its depth direction, and the insertion end of the tightening screw 204 may be conical; of course, in some other embodiments, the insertion end of the tightening screw 204 may be other protruding shapes, such as an arc, a square, etc.

[0052] In some embodiments, the spacing between adjacent locking slots 205 can be set to zero to improve the accuracy of changing the extension and contraction amount of the push rod 202; of course, in other embodiments, the spacing between adjacent locking slots 205 can be set to other values.

[0053] In some embodiments, a through hole 206 for the first locking member to pass through may be provided on a side surface of the supporting cylinder 201 and at one end close to the first end surface 208 .

[0054] In some embodiments, the through hole 206 may include two threaded holes threadedly connected to the tightening screw 204 to prevent the tightening screw 204 from falling off from both sides of the support cylinder 201 .

[0055] In some embodiments, the support structure 2 is detachably connected to the bearing surface of the bearing plate 1. When any support structure 2 on the bearing plate 1 is damaged, it only needs to be replaced, thereby reducing production costs. Of course, in other embodiments, the support structure 2 can be welded to the bearing surface.

[0056] Among them, in some embodiments, the second end face 209 in the axial direction of the support cylinder 201 may be provided with a connecting hole 207 for connecting to the connecting piece on the supporting plate 1, so as to detachably connect the support cylinder 201 to the supporting plate 1; of course, in some other embodiments, a snap-fit connection method may be adopted between the support cylinder 201 and the supporting plate 1, and the present disclosure will not elaborate on this.

[0057] Among them, in some embodiments, the connecting hole 207 of the support cylinder 201 can be connected to the blind groove 203, and a support rod can be provided. The support rod passes through the supporting plate 1 and the connecting hole 207 in sequence from the bottom of the supporting plate 1 and extends into the blind groove 203. The top surface of the support rod can be provided with a disk with a radius slightly smaller than the radius of the top rod 202, and it is pressed against the bottom surface of the top rod 202 to provide supporting force to the top rod 202. The side surface of the support rod can be provided with a thread, and it can be threadedly connected with the supporting plate 1 and the connecting hole 207 to fix the support cylinder 201 on the supporting plate 1. By rotating the support rod, the length of the support rod extending into the blind groove 203 can be changed, thereby adjusting the length of the top rod 202 extending out of the support cylinder 201.

[0058] It can be understood that the support rod in this embodiment needs to avoid the lower surface of the support rod contacting the supporting plate 1 of the next layer when the length of the support rod extending into the blind groove 203 is reduced; therefore, the support rod cannot be too long, and the range of the adjustable top rod 202 extending out of the support cylinder 201 is lower than that of the tightening screw 204 and locking groove 205 used in the present invention.

[0059] In some embodiments, the contour shape of the supporting plate 1 can be adapted to the inner cavity shape of the box to limit the relative position of the supporting jig and the box, thereby preventing the supporting jig from sliding relative to the box and colliding with the inner wall of the box during the transportation of the box.

[0060] Example 2

[0061] The difference from the first embodiment lies in the supporting structure 2 .

[0062] In some embodiments, reference Figure 5 and Figure 8 As shown, the support structure 2 may include multiple groups of support columns 201 of different heights.

[0063] The number and height of the supporting cylinders 201 in each group are the same. By replacing the entire group of supporting cylinders 201 on the supporting plate 1 , the spacing between adjacent supporting plates 1 can be changed.

[0064] In some embodiments, a support protrusion can be set on the first end face 208 of the support cylinder 201, and the support protrusion and the top surface of the support cylinder 201 can be detachably connected. By changing the height of the support protrusion on the top surface of the support cylinder 201, the support height of the entire support mechanism can be changed, thereby adjusting the spacing between the support jigs; it is worth noting that at this time, the support cylinder and the supporting plate can be detachably connected or fixedly connected.

[0065] In some embodiments, reference Figure 6 and Figure 7 As shown, two parallel grooves 3 with a depth extending toward the first end face 208 can be provided on opposite sides of the second end face 209 of the support cylinder 201 in the axial direction for clamping by a clamping tool to facilitate the installation and disassembly of the support cylinder 201 and improve production efficiency.

[0066] Thus far, various embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0067] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced with equivalents without departing from the scope and spirit of the present disclosure. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A bipolar plate drying device, characterized in that: include: Box; and A plurality of support jigs, wherein the plurality of support jigs can be stacked in the box along the height direction, The support fixture comprises a support plate (1) for supporting the bipolar plate and a support structure (2) arranged on the support surface of the support plate (1); the support height of the support structure (2) can be adjusted to adjust the spacing between adjacent support plates (1); and a plurality of groups of ventilation holes (101) are arranged on the support plate (1) at equal intervals along the length direction of the support plate (1); each group of ventilation holes (101) comprises a plurality of holes arranged at intervals along the width direction of the support plate (1).

2. The bipolar plate drying device according to claim 1, characterized in that: The support structure (2) comprises a support cylinder (201) and a push rod (202); a first end face (208) in the axial direction of the support cylinder (201) is provided with a blind groove (203) which is adapted to the outer contour shape of the push rod (202) and has a groove depth extending toward a second end face (209) in the axial direction of the support cylinder (201); the push rod (202) is arranged in the blind groove (203) and can extend out of or retract into the blind groove (203) along the axial direction of the support cylinder (201); and the support cylinder (201) can lock the length of the push rod (202) extending out of the blind groove (203).

3. The bipolar plate drying device according to claim 2, characterized in that: The support structure (2) comprises a first locking member and a second locking member capable of being locked to each other, wherein the first locking member is arranged on the support cylinder (201), and the second locking member is arranged on the top rod (202), and when the first locking member and the second locking member are unlocked, the top rod (202) is allowed to move relative to the support cylinder (201).

4. The bipolar plate drying device according to claim 3, characterized in that: The first locking member includes two tightening screws (204), and the second locking member includes a plurality of locking grooves (205) adapted to the shape of the heads of the tightening screws (204). The plurality of locking grooves (205) are arranged on opposite sides of the push rod (202) along the axial direction of the push rod (202).

5. The bipolar plate drying device according to claim 4, characterized in that: The cross-sectional area of the locking groove (205) decreases along the depth direction, and the insertion end of the tightening screw (204) is tapered.

6. The bipolar plate drying device according to claim 5, characterized in that: The distance between adjacent locking grooves (205) is zero, which is used to improve the accuracy of changing the extension and contraction amount of the push rod (202).

7. The bipolar plate drying device according to claim 3, characterized in that: A through hole (206) for the first locking member to pass through is provided on the side surface of the supporting cylinder (201) and at one end close to the first end surface (208).

8. The bipolar plate drying device according to claim 2, characterized in that: The supporting structure (2) is detachably connected to the bearing surface of the bearing plate (1).

9. The bipolar plate drying device according to claim 8, characterized in that: The second end surface (209) of the supporting cylinder (201) in the axial direction is provided with a connection hole (207) for connecting with a connecting piece on the supporting plate (1).

10. The bipolar plate drying device according to claim 1, characterized in that: The contour shape of the supporting plate (1) is adapted to the inner cavity shape of the box body, so as to define the relative position of the supporting fixture and the box body.

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