CN216359910U - Hydrogenation flap and on-vehicle hydrogen system - Google Patents

Abstract

The utility model provides a hydrogenation port cover and a vehicle-mounted hydrogen system, and relates to the technical field of new energy automobiles, wherein the hydrogenation port cover comprises a cover body and a plurality of groups of clamping devices arranged on the cover body; the clamping device comprises a fixing clamp, the fixing clamp comprises a clamping part, and the clamping part is positioned below the cover body; the end part of the cover body provided with the opening is used for being in transition fit with the hydrogenation port, and the plurality of groups of clamping parts can be close to or far away from each other so as to clamp or loosen the side wall of the hydrogenation port. The on-board hydrogen system includes a hydrogen addition port cover. Through this hydrogenation flap, the long-time plug of hydrogenation flap that has alleviated existence among the prior art can let its material produce fatigue, and the plug process is unfavorable for manual operation's technical problem, has reached quick plug and locking, easy operation convenient technological effect.

Description

Hydrogenation flap and on-vehicle hydrogen system

Technical Field

The utility model relates to the technical field of new energy automobiles, in particular to a hydrogen adding opening cover and a vehicle-mounted hydrogen system.

Background

The hydrogen fuel cell is an energy conversion device for converting chemical energy in hydrogen into electric energy, the hydrogen and oxygen continuously output the electric energy through electrochemical reaction, and the hydrogen fuel cell has the advantages of high energy conversion rate, no pollution and the like. The vehicle-mounted hydrogen system is used as a hydrogen supply device of the hydrogen fuel cell, and provides guarantee for normal operation of the hydrogen fuel cell automobile.

The hydrogenation port is one of the core devices of the vehicle-mounted hydrogen system, and is also an important device which is connected with a hydrogenation gun on a fuel cell automobile and used for filling hydrogen, preventing backflow and filtering hydrogen, and has strict requirements on the cleanliness of the hydrogenation port, so that a hydrogenation port cover matched with the hydrogenation port is required to be designed at the position of the hydrogenation port outside the hydrogen energy automobile. This hydrogenation flap can guarantee the cleanliness effectively to prevent that aqueous vapor, dust etc. from getting into the hydrogenation mouth.

The existing hydrogenation port cover is designed into an integral piece, the matching mode of the hydrogenation port cover and the hydrogenation port is interference fit, elastic deformation is generated through the hydrogenation port cover, and tightening force is applied to the hydrogenation port, so that the hydrogenation port cover is fixed to the hydrogenation port. Although this mode can realize the dustproof and waterproof effect of hydrogenation mouth and the fixed of hydrogenation flap, this kind of interference fit mode, the long-time plug of considering the hydrogenation flap can let its material produce fatigue, need rely on the manual work to exert the force to go to realize moreover at the plug in-process, also does not benefit to manual operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hydrogenation port cover and a vehicle-mounted hydrogen system, and aims to solve the technical problems that long-time plugging and unplugging of the hydrogenation port cover in the prior art causes fatigue of materials of the hydrogenation port cover, and the plugging and unplugging process is not beneficial to manual operation.

In a first aspect, the present invention provides a hydrogenation port cover, comprising: the cover comprises a cover body and a plurality of groups of clamping devices arranged on the cover body;

the clamping device comprises a fixing clamp, the fixing clamp comprises a clamping part, and the clamping part is positioned below the cover body;

the end part of the cover body provided with the opening is used for being in transition fit with the hydrogenation port, and the plurality of groups of clamping parts can be close to or far away from each other so as to clamp or loosen the side wall of the hydrogenation port.

Furthermore, the fixing clamp is hinged to the outer side of the cover body, and an elastic piece is arranged between the fixing clamp and the cover body; the fixing clamp swings relative to the cover body under the action of external force pressing, so that the clamping parts of the multiple groups are far away from each other, and the clamping parts of the multiple groups are close to each other under the action of the elastic force of the elastic piece.

Further, a fixing column is arranged on the outer side of the cover body;

the fixing clamp further comprises a fixing part, the elastic part and the fixing part are fixedly sleeved on the outer peripheral side of the fixing column, and the fixing clamp is in contact with one connecting end of the elastic part.

Furthermore, a check ring is arranged on the fixing column and used for preventing the fixing clamp from moving along the axial direction of the fixing column.

Furthermore, the clamping devices are two groups, and the two groups of clamping devices are arranged oppositely.

Furthermore, two groups of fixing columns are arranged on the cover body;

the two groups of fixing columns are correspondingly provided with the anti-backing rings, so that the two groups of fixing clamps are limited between the two groups of anti-backing rings.

Further, the clamping part comprises a clamping groove, and the clamping groove is matched with the side wall of the hydrogenation port.

Furthermore, still be equipped with flexible fixed band on the lid body, be equipped with on the flexible fixed band and be used for being fixed in its fixed knot who adds the hydrogen mouth constructs.

Furthermore, reinforcing ribs and/or weight reduction grooves are arranged on the flexible fixing belt.

Has the advantages that:

the hydrogenation port cover provided by the utility model comprises a cover body and a plurality of groups of clamping devices, wherein the end part of the cover body provided with the opening is in transition fit with the hydrogenation port.

Wherein the clamping device comprises a fixing clamp, the fixing clamp comprises a clamping part, the clamping part is positioned below the cover body, the arrangement can ensure that the cover body and the clamping part of the fixing clamp do not interfere with each other, after the cover body is matched and installed with the hydrogenation port, the clamping part positioned below the cover body can be clamped on the side wall of the hydrogenation port, when the hydrogenation port cover is installed, the plurality of groups of clamping parts can be mutually separated, the space between the plurality of groups of clamping parts is enlarged, then the hydrogenation port cover can be inserted into the hydrogenation port by using smaller force in the process of transition fit of the cover body of the hydrogenation port cover and the hydrogenation port, meanwhile, the fixing clamp can have enough space to penetrate through the side wall of the hydrogenation port, after the cover body is installed in place, the plurality of groups of clamping parts can be close to each other, so that the clamping parts of the fixing clamp are clamped on the side wall of the hydrogenation port, the fixed installation of the hydrogenation port cover on the hydrogenation port is realized, and the cover body has better installation stability.

Correspondingly, when specifically dismantling the hydrogenation flap, can make multiunit clamping part keep away from each other, space between the increase multiunit clamping part makes multiunit clamping part loosen the hydrogenation flap lateral wall, at this moment, can use less power just can extract the hydrogenation flap hydrogenation mouth, provides convenience for manual plug operation, also can operate repeatedly simultaneously and use.

Has the advantages that:

in a second aspect, the present invention provides an in-vehicle hydrogen system, comprising: the hydrogenation port cover of any of the preceding embodiments.

The vehicle-mounted hydrogen system provided by the utility model comprises the hydrogenation port cover, so that the technical advantages and effects which can be achieved by the vehicle-mounted hydrogen system also comprise the technical advantages and effects which can be achieved by the hydrogenation port cover, and are not repeated herein.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a hydrogenation port cover provided in an embodiment of the present invention, wherein the hydrogenation port cover is in a clamping state or an initial state;

fig. 2 is a schematic structural diagram of a hydrogenation port cover provided in an embodiment of the present invention, wherein the hydrogenation port cover is in a loose state;

FIG. 3 is a schematic partially disassembled view of a hydrogenation port cover according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of the retaining clip in the hydrogenation port cap;

FIG. 5 is an enlarged view of a portion of FIG. 1 at A;

fig. 6 is a partially enlarged view of the point B shown in fig. 1.

Icon:

100-a lid body; 110-fixed column;

210-a retaining clip; 220-an elastic member; 211-a clamping portion; 212-a fixed part; 221-a linear spring section;

300-stop ring;

400-flexible fixing band; 410-reinforcing ribs; 420-weight reduction slots.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 to 4, the present embodiment provides a hydrogenation port cover, which includes a cover body 100 and a plurality of sets of clamping devices disposed on the cover body 100; wherein, the clamping device comprises a fixing clamp 210, the fixing clamp 210 comprises a clamping part 211, and the clamping part 211 is positioned below the cover body 100; the cap body 100 is provided with an open end for transition-fitting with the hydrogenation port, and a plurality of sets of the holding portions 211 can be moved close to or away from each other to hold or release the side wall of the hydrogenation port.

In short, when the plurality of sets of clamping portions 211 are close to each other to clamp the side wall of the hydrogenation opening, the hydrogenation opening cover is in a clamping or initial state; when the plurality of sets of clamping parts 211 are far away from each other to loosen the side wall of the hydrogenation opening, the hydrogenation opening cover is in a loosening state.

The hydrogenation flap that this embodiment provided, lid body 100 are equipped with open-ended tip and hydrogenation mouth transition fit, and with among the prior art hydrogenation flap and hydrogenation mouth adoption interference fit compare, the hydrogenation flap of this embodiment is convenient for carry out the dismouting in hydrogenation mouth department, can prevent that the long-time plug of hydrogenation flap from making its material produce fatigue or wearing and tearing, can prolong its life.

It should be noted that, since the cap body 100 covers the hydrogenation port to seal the hydrogenation port, the cap body 100 of the present embodiment has an opening, and the opening is in transition fit with the hydrogenation port.

Wherein, the clamping device comprises a fixing clamp 210, the fixing clamp 210 comprises a clamping portion 211, the clamping portion 211 is located below the cover body 100, the arrangement is such that the cover body 100 and the clamping portion 211 of the fixing clamp 210 do not interfere with each other, after the cover body 100 and the hydrogenation port are installed in a matching manner, the clamping portion 211 located below the cover body 100 can be clamped on the side wall of the hydrogenation port, specifically, referring to fig. 2 and 4, when the hydrogenation port cover is installed, the clamping portions 211 of a plurality of groups of fixing clamps 210 can be separated from each other, the space between the clamping portions 211 of a plurality of groups of fixing clamps 210 is increased, then in the process of transition fit of the cover body 100 of the hydrogenation port cover and the hydrogenation port, the hydrogenation port cover can be inserted into the hydrogenation port with a small force, meanwhile, the fixing clamp 210 can have enough space to penetrate through the side wall of the hydrogenation port, after the cover body 100 is installed in place, the plurality of groups of clamping portions 211 can be close to each other, so that the clamping portion 211 of the fixing clamp 210 is clamped on the side wall of the hydrogenation port (see fig. 1 in detail), realize the fixed mounting of hydrogenation flap at the hydrogenation mouth, and have better installation stability.

Correspondingly, refer to fig. 2 and 4, when specifically dismantling the hydrogenation flap, can make the clamping part 211 of multiunit fixation clamp 210 keep away from each other, increase the space between the clamping part 211 of multiunit fixation clamp 210, make the clamping part 211 of multiunit fixation clamp 210 loosen the hydrogenation mouth lateral wall, at this moment, can use less power just can extract the hydrogenation mouth with the hydrogenation flap, provide convenience for manual plug operation, also can operate repeatedly the use simultaneously.

In particular, the clamping device can have various structural forms.

In an embodiment (not shown in the drawings), the clamping device comprises an elastic clamping rod, the elastic clamping rod can generate elastic deformation, and when the hydrogenation port cover is installed, the elastic clamping rod can generate elastic deformation to expand outwards, so that the elastic clamping rod can be tightly clamped on the side wall of the hydrogenation port, and the installation of the hydrogenation port cover on the hydrogenation port is realized.

In another embodiment, referring to fig. 1, 2, 4 and 5, the fixing clip 210 is hinged to the outside of the cover body 100 with an elastic member 220 therebetween; the fixing clip 210 swings relative to the cap body 100 under the pressing action of the external force to make the plurality of sets of holding portions 211 separate from each other, and makes the plurality of sets of holding portions 211 approach each other under the elastic force of the elastic member 220.

Referring to fig. 1, when specifically pressing the fixing clip 210, a human hand may press an upper end of the fixing clip 210, i.e., an end of the fixing clip 210 away from the clamping portion 211.

Alternatively, the elastic member may be a spring or an elastic rubber member, which may be directly fixedly connected between the sidewall of the cover body 100 and the plate surface of the fixing clip 210 away from the clamping portion 211.

In this embodiment, referring to fig. 3, 4 and 5, the fixing column 110 is disposed on the outer side of the cover body 100, the fixing clip 210 further includes a fixing portion 212, the elastic element 220 and the fixing portion 212 are both fixedly sleeved on the outer peripheral side of the fixing column 110, and the fixing clip 210 contacts with a connection end of the elastic element 220.

Specifically, the fixing portion 212 is provided with a hole for sleeving the fixing column 110; in order to facilitate the installation of the fixing clip 210, the end of the fixing clip 210 far away from the clamping portion 211 is provided as a rod portion, and the fixing portion 212 is provided in the rod portion and perpendicular to the rod portion, so that the fixing portion 212 of the fixing clip 210 is sleeved by one end of the fixing post 110, and in this installation state, the fixing clip 210 can rotate around the fixing post 110 to realize the hinge connection of the fixing clip 210 at the outer side of the cover body 100.

In this embodiment, the elastic member 220 may be a coil spring, and at least one end of the coil spring extends out of a linear spring section 221, wherein the linear spring section 221 contacts with a plate surface of the fixing clip 210 away from the clamping portion 211, when the fixing clip 210 is pressed, the plate surface of the fixing clip 210 away from the clamping portion 211 compresses the linear spring section 221, so that the linear spring section 221 has elastic potential energy, and when the fixing clip 210 is released, the fixing clip 210 is pushed to move reversely until the fixing clip returns to the initial state under the action of the elastic potential energy.

Wherein the connecting end of the helical spring can be regarded as the aforementioned linear spring section 221.

Illustratively, one end of the coil spring extends out of a linear spring section 221; alternatively, two ends of the coil spring extend out of one section of the linear spring section 221, and in this structure, one section of the linear spring section 221 contacts with the plate surface of the fixing clip 210 far away from the clamping portion 211, and the other section of the linear spring section 221 can contact with the outer side of the cover body 100.

Further, a retaining ring 300 is disposed on the fixed column 110, and the retaining ring 300 is used for preventing the fixing clip 210 from moving along the axial direction of the fixed column 110.

Optionally, the fixing post 110 may be provided with an installation hole for passing through the anti-back ring 300, wherein the anti-back ring 300 is an open ring and may be arranged in the installation hole in a penetrating manner to limit the fixing clip 210; wherein, the retaining ring 300 can be provided in an elliptical shape, an oblong hole shape, or other regular or irregular shapes.

In the specific installation, the elastic member 220 is sleeved on the fixing post 110, the fixing portion 212 of the fixing clip 210 is sleeved on the fixing post 110, and the retaining ring 300 is installed. Since the check ring 300 is configured as an open ring, the check ring 300 may be removed first, and then the fixing clip 210 and the elastic member 220 may be removed in sequence.

In this embodiment, the clamping devices are two sets, and the two sets of clamping devices are arranged oppositely.

Further, the two sets of fixing posts 110 are respectively provided with a retaining ring 300, so that the two sets of fixing clips 210 are limited between the two sets of retaining rings 300, and further the two sets of fixing clips 210 are prevented from moving along the axial direction of the corresponding fixing posts 110, so as to prevent the fixing clips 210 from separating from the fixing posts 110.

Specifically, referring to fig. 3, the fixing posts 110 are L-shaped, and two sets of fixing posts 110 are disposed in central symmetry with respect to the cover body 100, so that the two sets of fixing clips 210 can be sleeved on the fixing posts 110 oppositely and from opposite directions, and thus, the end of the fixing post 110 can be limited by the anti-back ring 300.

However, since the two sets of fixing clips 210 have the same structure and need to be installed in opposite directions when they are installed, the fixing portions 212 corresponding to the two sets of fixing clips 210 are disposed in a shifted manner in the left-right direction shown in fig. 4.

Referring to fig. 4, the clamping portion 211 includes a clamping groove adapted to a side wall of the hydrogenation port to improve the installation stability of the hydrogenation port cover at the hydrogenation port.

When the clamping devices are in two groups, the clamping grooves are arranged to be semi-circular arc concave surfaces; when the clamping devices are more than two groups, the space surrounded by the plurality of groups of clamping grooves is matched with the side wall of the hydrogenation port.

In addition to the above embodiments, referring to fig. 1 and 6, the cover body 100 is further provided with a flexible fixing band 400, and the flexible fixing band 400 is provided with a fixing structure for fixing the flexible fixing band to the hydrogenation port.

Illustratively, the fixing structure may be a bolt hole formed on the flexible fixing band 400, and a bolt may pass through the bolt hole to fix the flexible fixing band 400 at the installation position, so as to prevent the hydrogenation port cover from dropping or being lost when the hydrogenation port cover is opened.

Further, referring to fig. 6, the flexible fixing band 400 is provided with a reinforcing rib 410 and/or a weight reduction groove 420, so that the reinforcing structure can prevent breakage, and the weight can be reduced, thereby solving the problem of weakness of the conventional hydrogenation port cover fixing band.

Specifically, the flexible fixing band 400 may be a rubber fixing band, in which a reinforcing rib is formed on one surface along a length direction thereof, and a plurality of weight-reducing grooves 420 are formed along the length direction of the reinforcing rib, and the plurality of weight-reducing grooves 420 are used to divide the reinforcing rib into a plurality of segments.

Alternatively, the weight-reducing grooves 420 may be provided as blind holes or through holes.

Above synthesizing, the specific installation process of the hydrogenation opening cover is as follows:

a fixed point (a proper position is selected without influencing the moving range of the hydrogenation port cover) is searched on the frame near the hydrogenation port, and the flexible fixing belt 400 is fixed by bolts through bolt holes;

a certain transverse pressing force is manually applied to the tail end, far away from the clamping portion 211, of the fixing clamp 210 to enable the fixing clamp 210 to be opened, the hydrogenation port cover is sleeved into the hydrogenation port at the moment, and after the cover body 100 is installed in place, the fixing clamp 210 is loosened, and then the hydrogenation port cover can be fixed.

The present embodiment provides an on-vehicle hydrogen system, which includes the hydrogen addition port cover of the foregoing embodiments. The vehicle-mounted hydrogen system provided by the embodiment comprises the hydrogenation port cover, so that the technical advantages and effects which can be achieved by the vehicle-mounted hydrogen system also comprise the technical advantages and effects which can be achieved by the hydrogenation port cover, and are not described again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A hydrogenation port cover, comprising: the cover comprises a cover body (100) and a plurality of groups of clamping devices arranged on the cover body (100);

the clamping device comprises a fixing clamp (210), the fixing clamp (210) comprises a clamping part (211), and the clamping part (211) is positioned below the cover body (100);

the end part of the cover body (100) provided with an opening is used for being in transition fit with the hydrogenation port, and the plurality of groups of clamping parts (211) can be close to or far away from each other so as to clamp or loosen the side wall of the hydrogenation port.

2. The hydrogenation port cover according to claim 1, wherein the fixing clip (210) is hinged to the outer side of the cover body (100) with an elastic member (220) therebetween;

the fixing clamp (210) swings relative to the cover body (100) under the action of external force pressing, so that the clamping parts (211) of multiple groups are far away from each other, and under the action of the elastic force of the elastic piece (220), the clamping parts (211) of multiple groups are close to each other.

3. The hydrogenation port cover according to claim 2, wherein the cover body (100) is provided with fixing posts (110) on the outer side;

the fixing clamp (210) further comprises a fixing part (212), the elastic part (220) and the fixing part (212) are fixedly sleeved on the outer peripheral side of the fixing column (110), and the fixing clamp (210) is in contact with one connecting end of the elastic part (220).

4. The hydrogenation port cover according to claim 3, wherein a retaining ring (300) is disposed on the fixing post (110), and the retaining ring (300) is used for preventing the fixing clip (210) from moving along the axial direction of the fixing post (110).

5. The hydrogenation port cover of claim 4, wherein said clamping means are provided in two sets, and wherein said two sets of clamping means are disposed opposite to each other.

6. The hydrogenation port cover according to claim 5, wherein two sets of said fixing posts (110) are provided on said cover body (100);

the two groups of fixing columns (110) are respectively and correspondingly provided with the anti-backing rings (300), so that the two groups of fixing clamps (210) are limited between the two groups of anti-backing rings (300).

7. The hydrogenation port cover of claim 1, wherein the clamping portion (211) comprises a clamping groove that is adapted to a side wall of the hydrogenation port.

8. The hydrogenation port cover according to any one of claims 1-7, wherein the cover body (100) is further provided with a flexible fixing strip (400), and the flexible fixing strip (400) is provided with a fixing structure for fixing the flexible fixing strip (400) to the hydrogenation port.

9. The hydrogenation port cover according to claim 8, wherein the flexible fixing band (400) is provided with reinforcing ribs and/or weight-reducing grooves.

10. An on-vehicle hydrogen system, characterized by comprising: the hydrogenation port cover of any of claims 1-9.

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