CN217214815U - Fuel cell system insulation structure - Google Patents

Abstract

The utility model discloses a fuel cell system insulation structure, which comprises a shell bottom plate, wherein a shell side plate is fixedly arranged on the periphery of the upper end surface of the shell bottom plate, a pile support for mounting a fuel cell is arranged above the shell bottom plate, the bottom of the pile support is fixedly connected with an insulation cushion block, a plurality of insulation bolt sleeves are embedded in the middle of the insulation cushion block, a fastening bolt I is sleeved in the middle of the insulation bolt sleeve I, the bottom of the fastening bolt I is in threaded connection with the shell bottom plate, and an insulation passing plate interface block is fixedly connected to one side of the top surface of the shell bottom plate; the utility model discloses a series of insulation arrangement for the high-tension electricity that fuel cell took is kept apart with outside shell structure completely, makes whole casing do not switch on in system's working process, guarantees that the insulating properties of system satisfies the requirement of using, thereby has guaranteed the security of system.

Description

Fuel cell system insulation structure

Technical Field

The utility model relates to a hydrogen fuel cell technical field, more specifically say and relate to a fuel cell system insulation system.

Background

In the field of hydrogen fuel cells, the fuel cells can generate high voltage during the working process, and the high voltage can be communicated with the whole system along with the ionized water generated by the reaction of the cathode plate and the anode plate of the fuel cells, so that great danger is generated. How to ensure the electrical safety of the fuel cell system is therefore a matter of great concern in the design of the system.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a fuel cell system insulation structure to solve the above problems in the background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a fuel cell system insulation system, includes the casing bottom plate, there is the casing curb plate casing side fixed mounting in the up end week of casing bottom plate, the top of casing bottom plate is provided with the pile support that is used for installing fuel cell, the insulating cushion of bottom fixedly connected with of pile support, it is located between fuel cell support and the casing bottom plate, props fuel cell unsettled, the middle part of insulating cushion inlays and is equipped with a plurality of insulating bolt cover one, the middle part cover of insulating bolt cover one is equipped with fastening bolt one, a fastening bolt bottom and casing bottom plate threaded connection, the board interface piece has been insulated to one side fixedly connected with of casing bottom plate top surface, and the board interface piece runs through the casing bottom plate to insulate for connect the inside and outside of casing bottom plate.

As a further aspect of the present invention: the top surface of the shell bottom plate and one side of the shell side plate are fixedly provided with insulating base plates, and the insulating base plates, the shell bottom plate and the shell side plate are fastened through bolts.

As a further aspect of the present invention: the utility model discloses a novel energy-saving device, including casing bottom plate, transition plate, fastening bolt cover two, a plurality of insulating bolt cover two, a plurality of are all inlayed to the both sides of crossing the transition plate, a plurality of the middle part of insulating bolt cover two is all overlapped and is equipped with fastening bolt two, a plurality of the position between the fastening bolt two and the casing curb plate all overlaps and is equipped with insulating washer, insulating washer is the flat gasket of insulating material, insulating bolt cover one and insulating bolt cover two are T type through-hole structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has simple structure and convenient assembly, fixes the fuel cell through the stack bracket, and arranges the insulating cushion block between the stack bracket and the shell bottom plate to cushion the fuel cell in the air, and simultaneously keeps enough clearance between the stack and the shell bottom plate, thereby isolating the fuel cell and the shell bottom plate; meanwhile, an insulating bolt sleeve I is nested on the stack support and the insulating cushion block, and the fastening bolt and the stack support are insulated and isolated, so that the shell and the stack support are completely isolated; the shell structures such as the shell bottom plate, the shell side plate and the like are insulated and isolated from the fuel cell again through the insulating base plate, so that the fuel cell and the shell are prevented from being conducted due to overlarge moisture when the fuel cell works in a humid environment, and the insulating property of the device is further improved;

the utility model discloses a series of insulation arrangement for the high-tension electricity that fuel cell took is kept apart with outside shell structure completely, makes whole casing do not switch on in system's working process, guarantees that the insulating properties of system satisfies the requirement of using, thereby has guaranteed the security of system.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a middle sectional view of the present invention;

fig. 4 is a bottom view of the present invention;

fig. 5 is an assembly schematic diagram of the first insulating bolt sleeve of the present invention;

fig. 6 is an assembly schematic diagram of the second insulating bolt sleeve of the present invention.

In the figure: 1. a housing floor; 2. a housing side plate; 3. a stack support; 4. insulating cushion blocks; 5. an insulating base plate; 8. sleeving a first insulating bolt; 9. a second insulating bolt sleeve; 10. an insulating washer; 11. an insulated pass-plate interface block; 12. a transition plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, in an embodiment of the present invention, an insulation structure of a fuel cell system includes a housing bottom plate 1, a housing side plate 2 is fixedly installed on the upper end surface of the housing bottom plate 1, a stack support 3 for installing a fuel cell is disposed above the housing bottom plate 1, an insulation pad 4 is fixedly connected to the bottom of the stack support 3, and is located between the fuel cell support and the housing bottom plate 1, the fuel cell is suspended and supported, a plurality of insulation bolt sleeves 8 are embedded in the middle of the insulation pad 4, a fastening bolt is sleeved on the middle of the insulation bolt sleeves 8, the bottom of the fastening bolt is in threaded connection with the housing bottom plate 1, an insulation board interface block 11 is fixedly connected to one side of the top surface of the housing bottom plate 1, and the insulation board interface block 11 runs through the housing bottom plate 1 and is used for connecting the inside and the outside of the housing bottom plate 1.

The equal fixed mounting in one side of the top surface of casing bottom plate 1 and casing curb plate 2 has insulating backing plate 5, insulating backing plate 5 is the flat board that insulating material made, all through the bolt-up between insulating backing plate 5 and casing bottom plate 1 and the casing curb plate 2, carry out insulating isolation once more to casing structures such as casing bottom plate 1 and casing curb plate 2 and fuel cell through insulating backing plate 5, guarantee during operation under humid environment, fuel cell and casing do not take place the conduction phenomenon because of the moisture is too big, further improve the insulating properties of device.

The lower place of casing bottom plate 1 is provided with cab apron 12, install the relatively poor system spare part of insulating nature through cab apron 12, both sides of crossing cab apron 12 all inlay and are equipped with two 9 of a plurality of insulating bolt cover, the middle part of two 9 of a plurality of insulating bolt covers all overlaps and is equipped with fastening bolt two, all overlap and be equipped with insulating washer 10 between two of a plurality of fastening bolt and casing curb plate 2, insulating washer 10 is the flat gasket of insulating material, insulating bolt cover one 8 and insulating bolt cover two 9 are T type through-hole structure, keep apart through insulating bolt cover and guarantee the insulating nature between casing structure and the bolt.

The working principle is as follows: the fuel cell and the shell bottom plate 1 are fixed through the stack support 3, the insulating cushion block 4 is positioned between the stack support 3 and the shell bottom plate 1, the fuel cell is cushioned and suspended, and a sufficient gap is kept between the stack and the shell bottom plate 1, so that the fuel cell and the shell bottom plate 1 are isolated, meanwhile, an insulating bolt sleeve 8 is nested on the stack support 3 and the insulating cushion block 4, and a fastening bolt is isolated from the stack support 3 in an insulating way, so that the shell structure and the stack support 3 are completely isolated;

meanwhile, the insulating base plates 5 are arranged on the bottom plate 1 of the shell and the side plates 2 of the shell on two sides, so that the galvanic pile is insulated and isolated again, and the conduction phenomenon between the fuel cell and the shell structure in a humid environment due to overlarge moisture is avoided;

the insulating through plate interface block 11 is processed by high-insulating materials and is connected with the inner interface and the outer interface of the shell, so that the shell bottom plate 1 cannot be conducted due to ionized water generated by the cathode and the anode of the fuel cell in the using process, and the insulativity of the shell structure is ensured; the transition plate 12 is isolated from the shell bottom plate 1 through an insulating washer 10, and meanwhile, an insulating bolt sleeve II 9 is embedded in the installation connection position, so that after the bolts are fastened, the insulating isolation between the transition plate 12 and the shell bottom plate 1 can be ensured, and each metal part fixed on the transition plate 12 subsequently cannot transmit current to the shell, and the shell is ensured not to be conducted; through the series of insulation arrangement, the high-voltage electricity carried by the fuel cell is completely isolated from the external shell structure, so that the whole shell structure is not conducted in the working process of the system, the insulation performance of the system is ensured to meet the use requirement, and the safety of the system is ensured.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

Claims (3)

1. The utility model provides a fuel cell system insulation system, includes casing bottom plate (1), there is casing curb plate (2) in the all sides fixed mounting of up end of casing bottom plate (1), its characterized in that, the top of casing bottom plate (1) is provided with galvanic pile support (3) that are used for installing fuel cell, the bottom fixedly connected with insulating pad (4) of galvanic pile support (3), the middle part of insulating pad (4) is inlayed and is equipped with a plurality of insulating bolt cover (8), the middle part cover of insulating bolt cover (8) is equipped with fastening bolt one, a fastening bolt bottom and casing bottom plate (1) threaded connection, the insulating board interface piece (11) of crossing of one side fixedly connected with of casing bottom plate (1) top surface.

2. The insulation structure of a fuel cell system according to claim 1, wherein an insulation backing plate (5) is fixedly mounted on both the top surface of the case bottom plate (1) and one side of the case side plate (2).

3. The fuel cell system insulation structure according to claim 1, wherein a transition plate (12) is arranged below the housing bottom plate (1), a plurality of second insulation bolt sleeves (9) are respectively embedded on two sides of the transition plate (12), a plurality of second fastening bolts are respectively sleeved in the middle of the second insulation bolt sleeves (9), and an insulation washer (10) is respectively arranged between each of the plurality of second fastening bolts and the housing side plate (2).

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