CN212046909U - Fuel cell shock-absorbing mounting tray for fuel cell vehicle - Google Patents
Fuel cell shock-absorbing mounting tray for fuel cell vehicle Download PDFInfo
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- CN212046909U CN212046909U CN201922423486.0U CN201922423486U CN212046909U CN 212046909 U CN212046909 U CN 212046909U CN 201922423486 U CN201922423486 U CN 201922423486U CN 212046909 U CN212046909 U CN 212046909U
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- fuel cell
- mounting
- damping
- plate
- buffer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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Abstract
The utility model relates to a fuel cell shock attenuation installation tray for fuel cell car. It has solved current fuel cell damping device atress inhomogeneous, the not good problem of stability, the vibration damping mount plate that sets up including the level, the vibration damping mount plate top is equipped with the fuel cell mounting panel that parallels with vibration damping mount plate, vibration damping mount plate upper end four corners is formed with the mount pad of vertical setting respectively, be equipped with the damping sleeve on the mount pad, fuel cell mounting panel lower extreme week is equipped with the damping lifter that slides and wears to locate in the damping sleeve respectively, vibration damping mount plate middle part position passes through elastic buffer and links to each other with fuel cell mounting panel middle part, fuel cell mounting panel upper end circumference four corners is equipped with the fixed frock clamp who is used for fixed fuel cell respectively, fixed frock clamp is each bight that rectangle structural distribution set up and fixed frock clamp department of buckling formed. The utility model has the advantages that: the supporting effect is good, the shaking amplitude is effectively reduced, the bottom of the fuel cell is uniformly stressed, and the stability is good.
Description
Technical Field
The utility model relates to a fuel cell equipment field, concretely relates to fuel cell automobile-used fuel cell shock attenuation installation tray.
Background
Fuel cell is as a neotype energy conversion device, with high efficiency, advantages such as environmental protection and compact structure are widely applied to each trade, along with fuel cell technical development maturity gradually, fuel cell has been widely used in the vehicle, at present, fuel cell in the fuel cell car is mostly direct mount in vehicle chassis, the vehicle is when traveling in rugged road section, fuel cell receives the influence of jolting easily, produce and rock, be unfavorable for the water balance in the fuel cell, fuel cell's life has been reduced, lead to the fact very big destructive influence to fuel cell pile, thereby fuel cell easily takes place the collision and produces great noise when rocking, certain influence has been produced to driver's driving impression, and simultaneously, when fuel cell produces and rocks, bottom circumference atress, take place easily and heels, stability is not good.
In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, chinese patent literature discloses a fuel cell damping device for a fuel cell vehicle and a fuel cell vehicle [ CN201810274018.9], which includes a bracket, an elastic member, and an elastic pad; the bracket is arranged above or below the chassis of the fuel cell vehicle and fixedly supports the fuel cell stack accommodated in the fuel cell box; the elastic part is used for buffering the vibration generated by the fuel cell stack for the first time, and selectively connects the bracket with the top plate or the bottom plate of the fuel cell box or connects the chassis with the bracket or the bottom plate of the fuel cell box according to the installation positions of the bracket relative to the chassis and the fuel cell box; an elastic washer is selectively provided on the inner wall of the fuel cell case or the bottom of the chassis base for secondarily buffering vibrations generated from the fuel cell stack and/or the fuel cell case, depending on the position at which the bracket is mounted with respect to the chassis base and the fuel cell case.
The scheme solves the problems of easy shaking, poor balance and high noise of the fuel cell to a certain extent, but the scheme still has a plurality of defects, such as: when the fuel cell shakes, the bottom is stressed unevenly in the circumferential direction, and is easy to incline, so that the stability is poor.
Disclosure of Invention
The utility model aims at the above-mentioned problem, a fuel cell shock attenuation installation tray for fuel cell car that reasonable in design stability is good is provided.
In order to achieve the above purpose, the utility model adopts the following technical proposal: the fuel cell shock absorption mounting tray for the fuel cell vehicle comprises a shock absorption bottom plate which is horizontally arranged, a fuel cell mounting plate which is arranged in parallel with the shock absorption bottom plate is correspondingly arranged above the shock absorption bottom plate, vertically arranged mounting seats are respectively formed at four circumferential corners at the upper end of the shock absorption bottom plate, damping sleeves are respectively arranged on the mounting seats through mounting and fixing structures, damping lifting rods which are vertically and downwardly extended and are slidably arranged in the damping sleeves are respectively arranged at four circumferential corners at the lower end of the fuel cell mounting plate, and the middle part of the damping bottom plate is connected with the middle part of the fuel cell mounting plate through an elastic buffer device which is vertically arranged, the four corners of the circumference of the upper end of the fuel cell mounting plate are respectively provided with a fixed tool clamp which is L-shaped and is used for fixing the fuel cell through a clamp mounting structure, and the fixed tool clamp is distributed and arranged in a rectangular structure and is used for fixing each corner of the tool clamp at the bending position to form the rectangular structure. Form the circumference through setting up damping sleeve and damping lifter on the mount pad in vibration damping bottom plate circumference four corners and support the four corners of fuel cell mounting panel to form elastic support to fuel cell mounting panel middle part through the elastic buffer who sets up at the vibration damping bottom plate middle part, form the even shock attenuation of atress and support to fuel cell mounting panel bottom when making the fuel cell mounting panel produce the downstream, and in time make the fuel cell mounting panel reset, stability is good, shock attenuation and support effect are good.
In foretell fuel cell vehicle fuel cell shock attenuation installation tray, elastic buffer includes the hydro-cylinder mount pad, and hydro-cylinder mount pad lower extreme is fixed in the damper base up end, the vertical buffer cylinder that is the tube-shape that is in hydro-cylinder mount pad upper end, and be equipped with the buffer rod body that can be at axial motion in the buffer cylinder, the buffer rod body passes through buffer rod body mount pad to be fixed terminal surface under the fuel cell mount pad, and be equipped with between buffer cylinder and the buffer rod body mount pad and enable the buffer rod body and keep the elastic support structure of upward movement trend. When the fuel cell mounting plate moves downwards, the elastic buffer device effectively supports the fuel cell mounting plate, and damage caused by overlarge movement amplitude of the fuel cell mounting plate is avoided.
In the fuel cell shock absorption mounting tray for the fuel cell vehicle, the elastic support structure comprises a shock absorption spring sleeved on the outer side of the periphery of the buffering rod body, one end of the shock absorption spring acts on the mounting seat of the buffering rod body, and the other end of the shock absorption spring acts on the upper end face of the buffering oil cylinder. The elastic support structure can enable the fuel cell mounting plate to reset in time.
In foretell fuel cell vehicle fuel cell shock attenuation installation tray, anchor clamps mounting structure keeps away from the anchor clamps base of kink one side lower extreme including an organic whole in fixed frock clamp, and the anchor clamps base is L shape structure and anchor clamps base and fixed frock clamp and is perpendicular setting, and the anchor clamps base links to each other through first fastener and fuel cell mounting panel.
In the fuel cell shock absorption mounting tray for the fuel cell vehicle, the mounting and fixing structure comprises a fixing plate formed on the circumferential outer side of the lower end of the damping sleeve, and the fixing plate is connected with the upper end of the mounting seat through a plurality of second fasteners.
In the fuel cell shock absorption mounting tray for the fuel cell vehicle, the circumferential inner side of the mounting seat is provided with a sliding hole corresponding to the damping lifting rod, and the damping lifting rod is arranged in the sliding hole in a sliding manner.
In the fuel cell damping mounting tray for the fuel cell vehicle, the mounting seat and the damping bottom plate are vertically arranged, the two adjacent side surfaces of the edge of the damping bottom plate on the mounting seat are flush with the side surfaces of the two adjacent sides of the damping bottom plate, and the connecting positions of the two adjacent side surfaces of the mounting seat in the damping bottom plate and the upper end surface of the damping bottom plate form an arc-shaped structure. The arc-shaped structure enables the damping bottom plate to support the mounting seat more stably.
In the fuel cell damper mounting tray for a fuel cell vehicle described above, the damper bottom plate has a length smaller than the fuel cell mounting plate, and the damper bottom plate has a width smaller than the fuel cell mounting plate.
In foretell fuel cell vehicle fuel cell shock attenuation installation tray, damping lifter upper end is equipped with the support disk body, and the size of support disk body diameter is less than the telescopic external diameter size of damping and is greater than the telescopic internal diameter size of damping, and fuel cell mounting panel lower extreme has the mounting groove corresponding with the support disk body, and supports the disk body joint in the mounting groove.
In the fuel cell shock-absorbing mounting tray for a fuel cell vehicle, a flexible buffer layer is provided on the upper end surface of the fuel cell mounting plate. The flexible buffer layer prevents the fuel cell on the fuel cell mounting plate from generating friction and collision when shaking, and effectively protects the fuel cell.
Compared with the prior art, the utility model has the advantages of: simple structure, the support effect is good, and fuel cell mounting panel bottom atress is even, when the fuel cell mounting panel produced and rocks, has effectively reduced the range of rocking, and it is spacing to the fuel cell formation circumference that is located the fuel cell mounting panel that sets up of fixed frock clamp moreover, and stability is good.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is another view structure diagram of the present invention;
FIG. 3 is a schematic structural view of the damping bottom plate and the elastic buffering device of the present invention;
FIG. 4 is a schematic view of the bottom structure of the fuel cell mounting plate of the present invention;
fig. 5 is a schematic structural view of the mounting and fixing structure, the damping sleeve, the damping lifting rod and the supporting disk body of the present invention when they are connected.
In the figure, a damping bottom plate 1, a mounting seat 11, a sliding hole 111, a fuel cell mounting plate 2, a fixed tooling fixture 21, a mounting groove 22, a mounting and fixing structure 3, a fixing plate 31, a second fastening piece 32, a damping sleeve 4, a damping lifting rod 41, a supporting plate body 42, an elastic buffer device 5, a cylinder mounting seat 51, a buffer cylinder 52, a buffer rod body 53, a buffer rod body mounting seat 54, an elastic supporting structure 55, a damping spring 551, a fixture mounting structure 6, a fixture base 61, a first fastening piece 62 and an arc-shaped structure 7 are arranged.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-5, this fuel cell shock attenuation installation tray for fuel cell vehicle, including the vibration damping bottom plate 1 that the level set up, vibration damping bottom plate 1 top corresponds to be equipped with the fuel cell mounting panel 2 with vibration damping bottom plate 1 parallel arrangement, vibration damping bottom plate 1 upper end circumference four corners is formed with the mount pad 11 of vertical setting respectively, be equipped with damping sleeve 4 through installation fixed knot structure 3 on the mount pad 11 respectively, 2 lower extreme circumference four corners of fuel cell mounting panel are equipped with vertical downwardly extending setting respectively and slide and wear to locate the damping lifter 41 in damping sleeve 4, and vibration damping bottom plate 1 middle part position links to each other through the elasticity buffer 5 of vertical setting and fuel cell mounting panel 2 middle part, be equipped with the fixed frock clamp 21 that is L shape and is used for fixed fuel cell through anchor clamps mounting structure 6 respectively in 2 upper end circumference four corners of fuel cell mounting panel, fixed frock clamp 21 is the setting of rectangular structure distribution and fixed frock clamp 21 department of buckling forms Each corner of (a). Utilize fixed frock clamp 21 to form circumference spacing to the fuel cell who lies in on fuel cell mounting panel 2, when fuel cell mounting panel 2 produced and rock, elastic buffer 5, damping lifter 41 and damping sleeve 4 between mutually support the bottom of fuel cell mounting panel 2 and form even support and in time reset fuel cell mounting panel 2, the shock attenuation is effectual, stability is good.
The elastic buffer device 5 comprises an oil cylinder mounting seat 51, the lower end of the oil cylinder mounting seat 51 is fixed on the upper end face of the damping bottom plate 1, a cylindrical buffer oil cylinder 52 is vertically arranged at the upper end of the oil cylinder mounting seat 51, a buffer rod body 53 capable of axially moving in the buffer oil cylinder 52 is arranged in the buffer oil cylinder 52, the buffer rod body 53 is fixed on the lower end face of the fuel cell mounting plate 2 through a buffer rod body mounting seat 54, and an elastic supporting structure 55 capable of enabling the buffer rod body 53 to keep moving upwards is arranged between the buffer oil cylinder 52 and the buffer rod body mounting seat 54.
As can be seen, the elastic supporting structure 55 includes a damping spring 551 sleeved on the outer circumferential side of the damping rod 53, and one end of the damping spring 551 acts on the damping rod mounting seat 54, and the other end acts on the upper end surface of the damping cylinder 52. The damper spring 551 herein not only elastically supports the middle of the fuel cell mounting plate 2, but also promptly resets the fuel cell mounting plate 2 by utilizing the resetting characteristic of the spring.
Further, the fixture mounting structure 6 includes a fixture base 61 integrally formed at the lower end of the side of the fixed tooling fixture 21 away from the bending part, the fixture base 61 is in an L-shaped structure and the fixture base 61 and the fixed tooling fixture 21 are vertically disposed, and the fixture base 61 is connected with the fuel cell mounting plate 2 through a first fastener 62.
Obviously, the mounting and fixing structure 3 includes a fixing plate 31 formed at a circumferential outer side of the lower end of the damping sleeve 4, and the fixing plate 31 is connected to the upper end of the mounting seat 11 by a plurality of second fastening members 32.
Specifically, the circumferential inner side of the mounting seat 11 has a sliding hole 111 corresponding to the damping lifter 41, and the damping lifter 41 is slidably disposed in the sliding hole 111.
In detail, the mounting seat 11 is perpendicular to the damping base plate 1, and the adjacent both sides face that the mounting seat 11 is located the edge of the damping base plate 1 flushes with the side face on the adjacent both sides of the damping base plate 1, and the adjacent two sides that the mounting seat 11 is located in the damping base plate 1 and the junction of the upper end face of the damping base plate 1 form the arc-shaped structure 7. The arc-shaped structure 7 makes the damping bottom plate 1 support the mounting seat 11 better, so that the damping sleeve 4 and the damping lifting rod 41 can support the fuel cell with larger mass on the fuel cell mounting plate 2 by matching.
Further, the length of the damper bottom plate 1 is smaller than the length of the fuel cell mounting plate 2, and the width of the damper bottom plate 1 is smaller than the width of the fuel cell mounting plate 2. This arrangement allows the damper base 1 to be located at the center of force of the fuel cell mounting plate 2.
Preferably, the upper end of the damping lifting rod 41 is provided with a supporting disc body 42, the diameter of the supporting disc body 42 is smaller than the outer diameter of the damping sleeve 4 and larger than the inner diameter of the damping sleeve 4, the lower end of the fuel cell mounting plate 2 is provided with a mounting groove 22 corresponding to the supporting disc body 42, and the supporting disc body 42 is clamped in the mounting groove 22.
Specifically, the upper end face of the fuel cell mounting plate 2 is provided with a flexible buffer layer. The flexible buffer layer can prevent the fuel cell mounting plate 2 from directly contacting with the fuel cell, and avoid the fuel cell mounting plate 2 from wearing the fuel cell when shaking.
The principle of the embodiment is as follows: utilize fixed frock clamp 21 to form circumference spacing to the fuel cell who lies in on fuel cell mounting panel 2, avoided fuel cell to produce the displacement, and simultaneously, mutually support the four corners formation circumference of fuel cell mounting panel 2 through damping sleeve 4 and damping lifter 41, and utilize the elastic buffer device 5 that sets up at the middle part of vibration damping bottom plate 1 to form elastic support to the middle part of fuel cell mounting panel 2, make fuel cell mounting panel 2 produce when rocking down form even shock attenuation and support of atress to the bottom of fuel cell mounting panel 2, and in time make fuel cell mounting panel 2 reset, shock attenuation and supporting effect are good, stability is good.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as the damper base plate 1, the mounting seat 11, the sliding hole 111, the fuel cell mounting plate 2, the fixed tooling fixture 21, the mounting groove 22, the mounting and fixing structure 3, the fixing plate 31, the second fastening member 32, the damping sleeve 4, the damping elevating rod 41, the support plate body 42, the elastic buffer device 5, the cylinder mounting seat 51, the buffer cylinder 52, the buffer rod body 53, the buffer rod body mounting seat 54, the elastic support structure 55, the damping spring 551, the fixture mounting structure 6, the fixture base 61, the first fastening member 62, and the arc structure 7 are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (10)
1. The utility model provides a fuel cell shock attenuation installation tray for fuel cell car, includes vibration damping mount plate (1) that the level set up, vibration damping mount plate (1) top correspond be equipped with fuel cell mounting panel (2) with vibration damping mount plate (1) parallel arrangement, a serial communication port, vibration damping mount plate (1) upper end circumference four corners be formed with mount pad (11) of vertical setting respectively, mount pad (11) on be equipped with damping sleeve (4) through installation fixed knot structure (3) respectively, fuel cell mounting panel (2) lower extreme circumference four corners be equipped with respectively that vertical downwardly extending sets up and slide and wear to locate damping lifting rod (41) in damping sleeve (4), and vibration damping mount plate (1) middle part position links to each other through elastic buffer (5) and fuel cell mounting panel (2) middle part of vertical setting, be equipped with respectively through anchor clamps mounting structure (6) in fuel cell mounting panel (2) upper end circumference four corners and be L shape and be used for fixed burning The fixed tooling clamp (21) of the material battery is characterized in that the fixed tooling clamp (21) is arranged in a rectangular structure in a distributed mode, and the bent parts of the fixed tooling clamp (21) form the corners of the rectangular structure.
2. The fuel cell damping mounting tray for the fuel cell vehicle as claimed in claim 1, wherein the elastic buffer device (5) comprises a cylinder mounting seat (51), the lower end of the cylinder mounting seat (51) is fixed on the upper end surface of the damping bottom plate (1), a cylindrical buffer cylinder (52) is vertically arranged at the upper end of the cylinder mounting seat (51), a buffer rod body (53) capable of axially moving in the buffer cylinder (52) is arranged in the buffer cylinder (52), the buffer rod body (53) is fixed on the lower end surface of the fuel cell mounting plate (2) through the buffer rod body mounting seat (54), and an elastic support structure (55) capable of enabling the buffer rod body (53) to keep moving upwards is arranged between the buffer cylinder (52) and the buffer rod body mounting seat (54).
3. The fuel cell shock-absorbing mounting tray for the fuel cell vehicle as claimed in claim 2, wherein the elastic support structure (55) comprises a shock-absorbing spring (551) sleeved on the circumferential outer side of the buffer rod body (53), and one end of the shock-absorbing spring (551) acts on the buffer rod body mounting seat (54) and the other end acts on the upper end surface of the buffer cylinder (52).
4. The fuel cell damping mounting tray for the fuel cell vehicle as claimed in claim 1, 2 or 3, wherein the fixture mounting structure (6) comprises a fixture base (61) integrally formed at a lower end of one side of the fixed tooling fixture (21) away from the bend, the fixture base (61) is in an L-shaped structure, the fixture base (61) and the fixed tooling fixture (21) are vertically arranged, and the fixture base (61) is connected with the fuel cell mounting plate (2) through a first fastening member (62).
5. The fuel cell shock-absorbing mounting tray for the fuel cell vehicle as claimed in claim 4, wherein the mounting and fixing structure (3) comprises a fixing plate (31) formed at the outer circumferential side of the lower end of the damping sleeve (4), and the fixing plate (31) is connected with the upper end of the mounting seat (11) by a plurality of second fasteners (32).
6. The fuel cell vehicle fuel cell shock-absorbing mounting tray according to claim 5, wherein the mounting seat (11) has a sliding hole (111) corresponding to the damping lifter (41) on the circumferential inner side, and the damping lifter (41) is slidably disposed in the sliding hole (111).
7. The fuel cell damping mounting tray for the fuel cell vehicle as claimed in claim 1, wherein the mounting seat (11) is perpendicular to the damping bottom plate (1), the two adjacent side surfaces of the edge of the damping bottom plate (1) of the mounting seat (11) are flush with the side surfaces of the two adjacent sides of the damping bottom plate (1), and the connecting part of the two adjacent side surfaces of the mounting seat (11) in the damping bottom plate (1) and the upper end surface of the damping bottom plate (1) forms an arc-shaped structure (7).
8. The fuel cell damper mounting tray for a fuel cell vehicle according to claim 7, wherein the damper base plate (1) has a length smaller than that of the fuel cell mounting plate (2), and the damper base plate (1) has a width smaller than that of the fuel cell mounting plate (2).
9. The fuel cell vehicle fuel cell shock absorption mounting tray as recited in claim 1, wherein a supporting tray body (42) is provided at an upper end of the damping elevating rod (41), a diameter of the supporting tray body (42) is smaller than an outer diameter of the damping sleeve (4) and larger than an inner diameter of the damping sleeve (4), a mounting groove (22) corresponding to the supporting tray body (42) is provided at a lower end of the fuel cell mounting plate (2), and the supporting tray body (42) is engaged in the mounting groove (22).
10. The fuel cell vehicle fuel cell shock-absorbing mounting tray as set forth in claim 1, wherein a flexible buffer layer is provided on an upper end surface of the fuel cell mounting plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423486.0U CN212046909U (en) | 2019-12-26 | 2019-12-26 | Fuel cell shock-absorbing mounting tray for fuel cell vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423486.0U CN212046909U (en) | 2019-12-26 | 2019-12-26 | Fuel cell shock-absorbing mounting tray for fuel cell vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212046909U true CN212046909U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922423486.0U Expired - Fee Related CN212046909U (en) | 2019-12-26 | 2019-12-26 | Fuel cell shock-absorbing mounting tray for fuel cell vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212046909U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389844A (en) * | 2021-05-10 | 2021-09-14 | 江苏大学 | Damping device of fuel cell and control method thereof |
| CN113991148A (en) * | 2021-10-14 | 2022-01-28 | 镇江市高等专科学校 | Water management system of variable-vibration fuel cell and control method thereof |
| CN116331001A (en) * | 2023-04-23 | 2023-06-27 | 武汉雄韬氢雄燃料电池科技有限公司 | Marine fuel cell system mounting and fixing method and device |
-
2019
- 2019-12-26 CN CN201922423486.0U patent/CN212046909U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389844A (en) * | 2021-05-10 | 2021-09-14 | 江苏大学 | Damping device of fuel cell and control method thereof |
| CN113991148A (en) * | 2021-10-14 | 2022-01-28 | 镇江市高等专科学校 | Water management system of variable-vibration fuel cell and control method thereof |
| CN116331001A (en) * | 2023-04-23 | 2023-06-27 | 武汉雄韬氢雄燃料电池科技有限公司 | Marine fuel cell system mounting and fixing method and device |
| CN116331001B (en) * | 2023-04-23 | 2023-10-10 | 武汉雄韬氢雄燃料电池科技有限公司 | Marine fuel cell system mounting and fixing method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201201 Termination date: 20211226 |