CN219419116U - Shell assembly and fuel cell with same - Google Patents

Abstract

The utility model discloses a shell component and a fuel cell with the same, wherein the shell component is used for the fuel cell, the fuel cell comprises a lamination body, the lamination body is formed by laminating a plurality of battery units along a first direction, and the shell component comprises: the first adjusting piece is arranged at one end of the connecting piece and is used for driving the first end plate to move towards the second end plate so as to clamp the lamination body between the first end plate and the second end plate; the two ends of the waist collapse prevention piece are respectively connected with the first end plate and the second end plate so as to be supported at the bottom of the lamination body, wherein the waist collapse prevention piece is provided with a positioning structure, and the positioning structure is used for positioning the lamination body. According to the shell assembly provided by the embodiment of the utility model, the waist collapse prevention piece is arranged, so that the laminated body can be effectively supported and positioned, the condition that the laminated body collapses is avoided, and the stability of the whole installation structure and the safety in use of the fuel cell can be ensured.

Description

Shell assembly and fuel cell with same

Technical Field

The present utility model relates to the field of battery technologies, and in particular, to a housing assembly and a fuel cell having the same.

Background

The traditional fuel cell stack only relies on screw rods to tighten front and back end plates of the fuel cell stack to stabilize the core structure, or adopts plane insulating plates to be paved around the fuel cell stack to ensure the stability of the core, and the two fixing modes have the defects that the fuel cell stack is easy to collapse after being placed for a long time due to the fact that the screw rods are only used for tightening the front and back end plates of the fuel cell stack, so that the bipolar plate frames extrude the screw rods to cause deformation short circuit, and meanwhile, the fuel cell stack is in an automobile application scene and encounters bumpy road conditions to collapse a direct structure, so that the phenomena of air leakage and bipolar plate short circuit are caused, and the fuel cell stack is caused to be burnt out in a short circuit. If only adopting the flat insulating board tiling fixed form, in the automobile application scene, meet jolting, the road conditions of pothole, firstly can't guarantee that the insulating board dodges the frame membrane, secondly can't get rid of the insulating board extrusion bipolar plate and cause polar plate deformation, the fuel cell stack short circuit condition takes place.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model aims to provide a shell assembly which can effectively avoid the waist collapse of the fuel cell and ensure the installation stability and the use safety of the fuel cell.

According to an embodiment of the present utility model, a housing assembly for a fuel cell including a lamination body laminated by a plurality of battery cells in a first direction, the housing assembly including: the first adjusting piece is arranged at one end of the connecting piece and is used for driving the first end plate to move towards the second end plate so as to clamp the lamination body between the first end plate and the second end plate; the two ends of the waist collapse prevention piece are respectively connected with the first end plate and the second end plate so as to be supported at the bottom of the lamination body, wherein the waist collapse prevention piece is provided with a positioning structure, and the positioning structure is used for positioning the lamination body.

According to the shell assembly provided by the embodiment of the utility model, the waist collapse prevention piece is arranged, so that the laminated body can be effectively supported and positioned, the waist collapse of the laminated body is avoided, the stability of the whole installation structure of the fuel cell and the use safety of the fuel cell can be effectively ensured, and the service life of the fuel cell can be prolonged.

In addition, the housing assembly according to the utility model may also have the following additional technical features:

in some embodiments, the housing assembly further includes a second adjustment member disposed at the other end of the connector for driving the second end plate toward the first end plate.

In some embodiments, the two ends of the connecting piece are respectively provided with external threads extending along a first direction, and the first adjusting piece and the second adjusting piece are nuts matched with the external threads.

In some embodiments, the battery unit comprises a plurality of electrode plates, and the positioning structure comprises a plurality of positioning grooves, wherein the plurality of positioning grooves are in one-to-one correspondence with the plurality of electrode plates.

In some embodiments, an insulating member is disposed between two adjacent battery units, and the positioning structure further includes a plurality of intermediate grooves, wherein the intermediate grooves are located between two adjacent positioning grooves, and the plurality of intermediate grooves are in one-to-one correspondence with the plurality of insulating members.

In some embodiments, the waist collapse preventing member is provided with a plurality of protruding blocks, the positioning grooves are formed in the protruding blocks, and the middle groove is located between two adjacent protruding blocks.

In some embodiments, the positioning structure is surface mounted with a buffer made of an insulating material.

In some embodiments, the waist collapse prevention member is provided with a first mounting portion and a second mounting portion at both ends thereof, respectively, each of the first and second mounting portions extending downward.

In some embodiments, the first and second mounting portions are detachably connected to the first and second end plates, respectively.

The utility model also provides a fuel cell with the embodiment.

According to the fuel cell provided by the embodiment of the utility model, the shell assembly is arranged, so that the condition of waist collapse of the fuel cell can be effectively avoided, and the installation stability and the use safety of the fuel cell are ensured.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a left side view of a housing assembly according to an embodiment of the present utility model;

FIG. 2 is a bottom view of a housing assembly according to an embodiment of the utility model;

FIG. 3 is a schematic structural view of the collapse prevention waist member of the housing assembly according to the embodiment of the present utility model;

fig. 4 is an assembly view of the collapse prevention waist member with the pole plate and the insulating member of the case assembly according to the embodiment of the present utility model.

Reference numerals:

100. a housing assembly;

1. a first end plate; 2. a second end plate; 3. a connecting piece; 4. a first adjustment member; 5. a second adjusting member;

6. a waist collapse prevention member; 61. a positioning structure; 62. a bump; 63. a first mounting portion; 64. a second mounting portion; 601. a positioning groove; 602. a middle groove;

7. a polar plate; 8. an insulating member.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

A housing assembly 100 according to an embodiment of the present utility model is described below with reference to fig. 1-4.

As shown in fig. 1 to 4, a housing assembly 100 according to an embodiment of the present utility model is used for a fuel cell including a stack body formed by stacking a plurality of battery cells in a first direction (refer to a front-rear direction shown in fig. 1), the housing assembly 100 includes a first end plate 1, a second end plate 2, a connecting member 3, a first regulating member 4, and a collapse preventing waist member 6, the connecting member 3 is connected between the first end plate 1 and the second end plate 2, the first regulating member 4 is provided at one end of the connecting member 3 for driving the first end plate 1 to move toward the second end plate 2 to clamp the stack body between the first end plate 1 and the second end plate 2, both ends of the collapse preventing waist member 6 are respectively connected with the first end plate 1 and the second end plate 2 to be supported at the bottom of the stack body, wherein a positioning structure 61 is provided on the collapse preventing waist member 6, and the positioning structure 61 is used for positioning the stack body. Specifically, the waist collapse prevention piece 6 can effectively support the lamination body, can prevent the lamination body from collapsing, ensures the use safety of the fuel cell and prolongs the service life of the fuel cell; the positioning structure 61 on the waist collapse prevention piece 6 can be matched with a plurality of battery units one by one, so that the positioning of the whole lamination body is realized, the plurality of battery units inside the fuel cell cannot shake and collide in the running process of the vehicle, and the safety of the fuel cell is effectively ensured.

Further, the positioning structure 61 can also effectively protect the battery unit, so that the excessive clamping force between the first end plate 1 and the second end plate 2 can be prevented, the battery unit is displaced, and deformation is generated by mutual extrusion, and even short-circuit combustion occurs.

According to the shell assembly 100 provided by the embodiment of the utility model, the waist collapse prevention piece 6 is arranged, so that the laminated body can be effectively supported and positioned, the waist collapse of the laminated body is avoided, the stability of the whole installation structure of the fuel cell and the use safety of the fuel cell can be effectively ensured, and the service life of the fuel cell can be prolonged.

In one embodiment of the present utility model, as shown in fig. 1 to 4, the housing assembly 100 may further include a second adjusting member 5, where the second adjusting member 5 is disposed at the other end of the connecting member 3, for driving the second end plate 2 to move toward the first end plate 1, so that clamping of the lamination body may be facilitated, and assembly efficiency may be effectively improved.

In one embodiment of the present utility model, as shown in fig. 1 to 4, both ends of the connection member 3 are respectively provided with external threads extending in a first direction, and the first adjustment member 4 and the second adjustment member 5 are nuts engaged with the external threads. In this embodiment, when the first adjusting member 4 drives the first end plate 1 to move toward the second end plate 2, the nut is engaged with the external thread at one end of the connecting member 3 and is rotationally screwed, and when the second adjusting member 5 drives the second end plate 2 to move toward the first end plate 1, the nut is engaged with the external thread at the other end of the connecting member 3 and is rotationally screwed, so that the assembly and the clamping can be facilitated, and the operation is facilitated.

In one embodiment of the present utility model, as shown in fig. 1 to 4, the battery unit includes the electrode plates 7, the positioning structure 61 includes positioning grooves 601, and the positioning grooves 601 are respectively provided with a plurality of positioning grooves 601 in one-to-one correspondence with the electrode plates 7. Specifically, as shown in fig. 4, for example, the electrode plate 7 of the battery unit is matched with the positioning groove 601, so that the battery unit can be supported and positioned.

Preferably, the positioning grooves 601 can be all V-shaped grooves, the V-shaped grooves can better support the polar plates 7, and the bottoms of the V-shaped grooves have good positioning effect on the polar plates 7.

In addition, the positioning groove 601 may be provided as other types of grooves, such as a U-shaped groove, a W-shaped groove, etc., without being particularly limited thereto.

In one embodiment of the present utility model, as shown in fig. 1 to 4, an insulating member 8 is disposed between two adjacent battery units, and the positioning structure 61 further includes a plurality of intermediate grooves 602, where the intermediate grooves 602 are located between two adjacent positioning grooves 601, and the plurality of intermediate grooves 602 are in one-to-one correspondence with the plurality of insulating members 8. Specifically, for example, as shown in fig. 4, the insulating member 8 extends into the middle groove 602 to be matched with the middle groove 602, and the middle groove 602 can effectively protect the insulating member 8, so that the insulating member 8 can be prevented from being damaged by extrusion, and the short circuit of the battery unit can be avoided.

In one embodiment of the present utility model, as shown in fig. 1 to 4, the waist collapse prevention member 6 is provided with a plurality of protrusions 62, the positioning groove 601 is provided on the protrusions 62, and the middle groove 602 is located between two adjacent protrusions 62. In this embodiment, the bump 62 may further strengthen the support of the lamination body, prevent the occurrence of the waist collapse situation of the lamination body, and protect the overall safety of the fuel cell, and at the same time, the bump 62 may further effectively improve the overall structural strength and rigidity of the waist collapse preventing member 6, and prolong the overall service life of the waist collapse preventing member 6.

In one embodiment of the present utility model, as shown in fig. 1 to 4, the positioning structure 61 is surface-mounted with a buffer member made of an insulating material. In this embodiment, the buffer member can effectively buffer and protect the battery unit, when the vehicle encounters a bumpy or hollow road surface during running, the fuel cell can shake along with the vehicle, and at this time, the buffer member on the positioning structure 61 can buffer the lamination body, so as to reduce damage to the lamination body caused by shake, and thus protect the safety of the fuel cell; in addition, the buffer piece made of the insulating material can effectively avoid electric leakage or short circuit of the fuel cell, and further enhances the protection of the fuel cell.

In some embodiments, the buffer member may be a buffer layer disposed on the surface of the positioning groove 601, and the buffer layer may be made of a soft and elastic insulating material, such as silica gel, polyurethane, etc., so that the battery cell may be effectively protected.

In one embodiment of the present utility model, as shown in fig. 1 to 4, the first mounting portion 63 and the second mounting portion 64 are respectively provided at both ends of the waist collapse prevention member 6, and the first mounting portion 63 and the second mounting portion 64 extend downward, so that not only is the mounting of the waist collapse prevention member 6 facilitated, but also the structural strength of the whole waist collapse prevention member 6 can be improved.

In one embodiment of the present utility model, as shown in fig. 1 to 4, the first mounting portion 63 and the second mounting portion 64 are detachably connected to the first end plate 1 and the second end plate 2, respectively. In this particular embodiment, the first mounting portion 63 is detachably connected to the first end plate 1, and the second mounting portion 64 is detachably connected to the second end plate 2, so that the waist collapse prevention member 6 is mounted between the first end plate 1 and the second end plate 2; specifically, the first mounting portion 63 and the second mounting portion 64 are both connected with the first end plate 1 and the second end plate 2 by bolts, respectively, so as to ensure the mounting stability of the collapse prevention waist member 6.

The utility model also provides a fuel cell with the embodiment.

According to the fuel cell provided by the embodiment of the utility model, the shell assembly 100 can effectively avoid the condition that the fuel cell collapses, and ensure the installation stability and the use safety of the fuel cell.

Other constructions and operations of the housing assembly 100 and the fuel cell according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A housing assembly for a fuel cell, wherein the fuel cell includes a stack of cells stacked in a first direction,

the shell assembly comprises a first end plate (1), a second end plate (2), a connecting piece (3), a first adjusting piece (4) and a waist collapse preventing piece (6), wherein the connecting piece (3) is connected between the first end plate (1) and the second end plate (2), the first adjusting piece (4) is arranged at one end of the connecting piece (3) and used for driving the first end plate (1) to move towards the second end plate (2) so as to clamp the lamination body between the first end plate (1) and the second end plate (2);

the two ends of the waist collapse prevention piece (6) are respectively connected with the first end plate (1) and the second end plate (2) so as to be supported at the bottom of the lamination body, wherein a positioning structure (61) is arranged on the waist collapse prevention piece (6), and the positioning structure (61) is used for positioning the lamination body.

2. The housing assembly according to claim 1, further comprising a second adjustment member (5), the second adjustment member (5) being arranged at the other end of the connection member (3) for driving the second end plate (2) to move towards the first end plate (1).

3. The housing assembly according to claim 2, wherein the connecting piece (3) has external threads extending in a first direction at both ends, and the first adjusting piece (4) and the second adjusting piece (5) are nuts which cooperate with the external threads.

4. The housing assembly according to claim 1, wherein the battery unit comprises a pole plate (7), the positioning structure (61) comprises positioning grooves (601), the positioning grooves (601) are all provided with a plurality of positioning grooves (601) which are in one-to-one correspondence with the pole plates (7).

5. The housing assembly according to claim 4, wherein an insulating member (8) is provided between two adjacent battery cells, the positioning structure (61) further comprises a plurality of intermediate grooves (602), the intermediate grooves (602) are located between two adjacent positioning grooves (601), and the plurality of intermediate grooves (602) are in one-to-one correspondence with the plurality of insulating members (8).

6. The shell assembly according to claim 5, wherein a plurality of lugs (62) are arranged on the waist-collapse prevention piece (6), the positioning groove (601) is arranged on the lugs (62), and the middle groove (602) is positioned between two adjacent lugs (62).

7. The housing assembly according to claim 1, wherein the positioning structure (61) is surface mounted with a buffer member, the buffer member being made of an insulating material.

8. The housing assembly according to claim 1, wherein the waist collapse prevention member (6) is provided with a first mounting portion (63) and a second mounting portion (64) at both ends thereof, respectively, the first mounting portion (63) and the second mounting portion (64) each extending downward.

9. The housing assembly according to claim 8, wherein the first mounting portion (63) and the second mounting portion (64) are detachably connected to the first end plate (1) and the second end plate (2), respectively.

10. A fuel cell comprising the housing assembly of any one of claims 1-9.