Hydrogen fuel cell cooling device and railway vehicle

Abstract

The utility model provides a hydrogen fuel cell cooling device and railway vehicle, wherein the hydrogen fuel cell cooling device comprises a shell, a filter plate and a filter plate fixing mechanism, the two opposite sides of the shell are respectively provided with an air inlet hole and an air outlet hole, an air inlet fan is arranged at the air inlet hole, and an exhaust fan is arranged at the air outlet hole; the two filter plates respectively shield the air inlet hole and the exhaust hole; the filter plate fixing mechanism is fixed on the shell, and the filter plate is detachably mounted on the filter plate fixing mechanism. According to the hydrogen fuel cell cooling device disclosed by the utility model, when the filter plate needs to be cleaned or replaced, the filter plate can be detached from the filter plate fixing mechanism to be cleaned or replaced, and compared with the prior art, the hydrogen fuel cell cooling device disclosed by the utility model has the advantages that the filter plate can be detached from the filter plate fixing mechanism to be cleaned or replaced; the filter screen does not need to be cleaned on the hydrogen fuel cell cooling device, and time and labor are wasted during replacement, so that the convenience of cleaning or replacing the filter plate is greatly improved, and the stability and reliability of the whole device are also improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to new energy vehicle technical field, especially relates to a hydrogen fuel cell cooling device and railway vehicle. BACKGROUND

[0002] Hydrogen fuel cell is a kind of device that hydrogen and oxygen are converted into electric energy by electrochemical reaction, its working principle is similar to the reverse process of electrolysis of water, hydrogen fuel cell generates heat in the process of power generation, thus needs effective cooling system to maintain operating temperature, ensure battery performance and life.

[0003] At present, mainly through fin radiator, liquid cooling plate, heat exchanger, air inlet fan and exhaust fan to cool the battery, filter screen is arranged at the position of air inlet fan and exhaust fan to prevent external impurities from entering the box and affecting the performance of parts inside the box, since dirt and impurities will inevitably adhere to the surface of filter screen during long-term use, therefore, filter screen needs to be replaced frequently, but the existing filter screen is basically directly welded at the position of air inlet fan and exhaust fan, and it is inconvenient to clean and replace due to the influence of operation space.

[0004] Therefore, how to overcome the above technical defects is a problem to be solved by the skilled in the art. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a hydrogen fuel cell cooling device, which can greatly improve the convenience of filter plate cleaning or replacement, thereby further improving the stability and reliability of the whole device.

[0006] Another purpose of the utility model is to provide a railway vehicle.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0008] A hydrogen fuel cell cooling device, comprising:

[0009] A shell, the opposite sides of the shell are respectively provided with an air inlet hole and an air outlet hole, an air inlet fan is arranged at the air inlet hole, and an air outlet fan is arranged at the air outlet hole;

[0010] Two filter plates, which shield the air inlet hole and the air outlet hole respectively;

[0011] A filter plate fixing mechanism is fixed on the shell, and the filter plate is detachably mounted on the filter plate fixing mechanism.

[0012] Optionally, the filter plate comprises a filter plate body and a filter screen, the filter screen is arranged on the filter plate body, and a clamping groove is further arranged on the filter plate body.

[0013] Optionally, the filter plate fixing mechanism comprises:

[0014] a mounting frame for mounting the filter plate;

[0015] two filter plate adjusting members arranged on the two sides of the mounting frame, the filter plate adjusting members being capable of being clamped with or released from the clamping groove to fix or release the filter plate.

[0016] Optionally, the mounting frame comprises a bottom frame and two side frames arranged on the two sides of the bottom frame.

[0017] The side frame comprises a matching plate and a baffle, the baffle being arranged vertically on one side of the matching plate, and the matching plate and the baffle being connected to form a mounting space for mounting the filter plate.

[0018] Optionally, the filter plate adjusting member comprises a limiting block, a clamping block, a first spring and a moving handle, the limiting block being internally provided with a limiting groove, and the clamping block and the first spring being mounted in the limiting groove.

[0019] One end of the first spring is connected with the limiting block, and the other end is connected with the clamping block, a through hole being formed in the limiting block, and the clamping block being capable of being clamped with the filter plate through the through hole under the action of the spring.

[0020] A long hole is formed in the top end surface of the limiting block, and the moving handle is connected with the clamping block through the long hole.

[0021] Optionally, the auxiliary moving mechanism is arranged inside the mounting frame.

[0022] The auxiliary moving mechanism comprises a mounting strip, a moving strip and a second spring, the mounting strip being arranged at the bottom end surface of the bottom frame, the moving strip being arranged on the upper part of the mounting strip and being capable of being attached to the bottom end surface of the filter plate, and the second spring being arranged between the mounting strip and the moving strip.

[0023] The two ends of the moving strip are respectively connected with the side frames in a sliding manner.

[0024] Optionally, the heat exchange mechanism, the heat dissipation mechanism and the connecting mechanism are further comprised, and the heat exchange mechanism is connected with the heat dissipation mechanism in a communicating manner through the connecting mechanism.

[0025] Optionally, the heat exchange mechanism comprises a heat exchanger, a cooling liquid storage tank and a booster pump, the heat exchanger, the cooling liquid storage tank and the booster pump being connected in sequence, and the heat exchanger, the cooling liquid storage tank and the booster pump being arranged on the shell.

[0026] Optionally, the heat dissipation mechanism comprises a heat conduction plate, a liquid cooling plate and a finned heat sink, and the heat conduction plate, the liquid cooling plate and the finned heat sink are sequentially arranged from the bottom to the top of the shell.

[0027] The heat conduction plate, the liquid cooling plate and the finned heat sink are arranged between the air inlet fan and the air outlet fan.

[0028] Optionally, the heat dissipation mechanism further comprises a mounting plate arranged between the liquid cooling plate and the finned heat sink and used for mounting the finned heat sink.

[0029] Optionally, the connecting mechanism comprises a first three-way pipe and a second three-way pipe, three pipe openings of the first three-way pipe are respectively connected with the heat exchanger, one end of the liquid cooling plate and one end of the finned heat sink, and three pipe openings of the second three-way pipe are respectively connected with the booster pump, the other end of the liquid cooling plate and the other end of the finned heat sink.

[0030] A rail vehicle comprises the hydrogen fuel cell cooling device according to any one of the preceding embodiments.

[0031] According to the above technical solution, when the filter plate needs to be cleaned or replaced, the filter plate can be disassembled from the filter plate fixing mechanism for cleaning or replacement. Compared with the prior art, the hydrogen fuel cell cooling device disclosed in the embodiment of the present application does not need to clean the filter screen on the hydrogen fuel cell cooling device, and the replacement is time-consuming and laborious. The hydrogen fuel cell cooling device disclosed in the embodiment of the present application not only greatly improves the convenience of cleaning or replacing the filter plate, but also improves the stability and reliability of the entire device. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0033] Figure 1 The overall structure schematic diagram of the hydrogen fuel cell cooling device disclosed in the embodiment of the present application;

[0034] Figure 2 The structure schematic diagram of the hydrogen fuel cell cooling device (without installing the filter plate and the filter plate fixing mechanism) disclosed in the embodiment of the present application;

[0035] Figure 3 The combined structure schematic diagram of the filter plate and the filter plate fixing mechanism disclosed in the embodiment of the present application;

[0036] Figure 4 Separation structure schematic view of filter plate and filter plate fixing mechanism disclosed by the embodiment of the utility model;

[0037] Figure 5 For Figure 3 Enlarged view at A;

[0038] Figure 6 For Figure 3 Enlarged view at B;

[0039] Figure 7 Installation structure schematic view of fin heat radiator disclosed by the embodiment of the utility model;

[0040] Figure 8 Explosion structure schematic view of fin heat radiator disclosed by the embodiment of the utility model.

[0041] Mark explanation:

[0042] 100, shell; 101, air inlet fan;

[0043] 200, filter plate; 201, filter plate body; 202, filter screen; 203, clamping groove;

[0044] 300, filter plate fixing mechanism; 301, mounting frame; 3011, bottom frame; 3012, side frame; 302, filter plate adjusting part; 3021, limiting block; 3022, limiting groove; 3023, clamping block; 3024, first spring; 3025, moving handle; 303, auxiliary driving mechanism; 3031, mounting strip; 3032, moving strip; 3033, second spring;

[0045] 400, heat exchanger; 500, cooling liquid storage tank; 600, booster pump; 700, heat conduction plate; 800, liquid cooling plate; 900, fin heat radiator; 1000, mounting plate; 1100, first three-way pipe; 1200, second three-way pipe. Specific implementation

[0046] Therefore, the core of the utility model lies in providing a hydrogen fuel cell cooling device, which can greatly improve the convenience of filter plate cleaning or replacement, thereby improving the stability and reliability of the whole device.

[0047] Another core of the utility model still lies in providing a railway vehicle.

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application, please refer to Figures 1 to 8 .

[0049] Please refer to Figure 1 and Figure 2 The hydrogen fuel cell cooling device disclosed in the embodiments of the present application comprises a shell 100, filter plates 200 and a filter plate fixing mechanism 300, wherein opposite sides of the shell 100 are respectively provided with an air inlet hole and an air outlet hole, an air inlet fan 101 is arranged at the air inlet hole, an air outlet fan is arranged at the air outlet hole, the filter plates 200 are two and respectively shield the air inlet hole and the air outlet hole, the filter plate fixing mechanism 300 is fixed on the shell 100, and the filter plates 200 are detachably installed on the filter plate fixing mechanism 300.

[0050] When the filter plates 200 need to be cleaned or replaced, the filter plates 200 can be detached from the filter plate fixing mechanism 300 for cleaning or replacement, compared with the prior art, the hydrogen fuel cell cooling device disclosed in the embodiments of the present application does not need to clean the filter screen on the hydrogen fuel cell cooling device, and the replacement is time-consuming and laborious, which not only greatly improves the convenience of cleaning or replacing the filter plates 200, but also improves the stability and reliability of the whole device.

[0051] The specific structure of the filter plates 200 is not limited in the embodiments of the present application, and any structure meeting the use requirements of the present application is within the protection scope of the present application.

[0052] As one of the embodiments, please refer to Figure 3 and Figure 4 The filter plate 200 disclosed in the embodiments of the present application comprises a filter plate body 201 and a filter screen 202, the filter screen 202 is arranged on the filter plate body 201, and a clamping groove 203 is further arranged on the filter plate body 201.

[0053] The specific structure of the filter plate fixing mechanism 300 is not limited in the embodiments of the present application, and any structure meeting the use requirements of the present application is within the protection scope of the present application.

[0054] As one of the embodiments, the filter plate fixing mechanism 300 disclosed in the embodiment of the utility model includes a mounting frame 301 and a filter plate adjusting part 302, wherein the mounting frame 301 is used for mounting the filter plate 200, the filter plate adjusting part 302 is two, and is arranged on the two sides of the mounting frame 301 respectively, and the filter plate adjusting part 302 can be clamped or released with the clamping groove 203, so as to realize the fixation or release of the filter plate 200.

[0055] The embodiment of the utility model does not limit the specific structure of the mounting frame 301, and any structure meeting the use requirements of the utility model is within the protection scope of the utility model.

[0056] As one of the embodiments, the mounting frame 301 disclosed in the embodiment of the utility model includes a bottom frame 3011 and a side frame 3012, the side frame 3012 is two, and is arranged on the two sides of the bottom frame 3011 respectively.

[0057] The side frame 3012 specifically includes a matching plate and a baffle, the baffle is arranged vertically on one side of the matching plate, and the matching plate and the baffle are connected to form an installation space for installing the filter plate 200.

[0058] Specifically, the side frame 3012 is an L-shaped structure, when the filter plate 200 is installed in the mounting frame 301, the filter plate 200 can slide in the mounting frame 301 along the length direction of the side frame 3012.

[0059] As a further embodiment, the side frame 3012 disclosed in the embodiment of the utility model is further provided with a sliding groove, the filter plate 200 and the sliding groove are connected in a matched mode, in this way, the filter plate 200 and the mounting frame 301 can realize further close cooperation.

[0060] The embodiment of the utility model does not limit the specific structure of the filter plate adjusting part 302, and any structure meeting the use requirements of the utility model is within the protection scope of the utility model.

[0061] As a further embodiment, please refer to Figure 5 The filter plate adjusting part 302 disclosed in the embodiment of the utility model includes a limiting block 3021, a clamping block 3023, a first spring 3024 and a moving handle 3025, the limiting block 3021 is provided with a limiting groove 3022, and the clamping block 3023 and the first spring 3024 are both installed in the limiting groove 3022.

[0062] The one end of the first spring 3024 is connected with the limiting block 3021, the other end is connected with the clamping block 3023, a through hole is formed in the top end face of the limiting block 3021, the clamping block 3023 can be clamped with the filter plate 200 through the through hole under the action of the first spring 3024, and the moving handle 3025 is connected with the clamping block 3023 through the long slot.

[0063] When the filter plate 200 is inserted into the installation frame 301, the clamping block 3023 pressed by the filter plate 200 moves towards the inside of the limiting groove 3022 under the action of the first spring 3024, when the clamping groove 203 on the filter plate 200 is in the same horizontal line with the clamping block 3023, the clamping block 3023 loses the pressing force and is ejected from the inside of the limiting groove 3022 under the action of the first spring 3024 and is clamped with the clamping groove 203 of the filter plate 200, so as to realize the fixation of the filter plate 200.

[0064] When it is necessary to clean or replace the filter plate 200, the moving handle 3025 can be manually actuated to move the clamping block 3023 towards the inside of the limiting groove 3022 to release the filter plate 200, so that the staff can take out the filter screen 202 from the installation frame 301.

[0065] As a further embodiment, the hydrogen fuel cell cooling device disclosed in the embodiment of the utility model further comprises an auxiliary driving mechanism 303, wherein the auxiliary driving mechanism 303 is arranged inside the installation frame 301.

[0066] Specifically, the auxiliary driving mechanism 303 comprises a mounting strip 3031, a moving strip 3032 and a second spring 3033, the mounting strip 3031 is arranged on the bottom end face of the bottom frame 3011, the moving strip 3032 is arranged on the upper part of the mounting strip 3031 and can be attached to the bottom end face of the filter plate 200, the second spring 3033 is arranged between the mounting strip 3031 and the moving strip 3032, and the two ends of the moving strip 3032 are respectively connected with the side frame 3012 in sliding mode.

[0067] When the filter plate 200 is inserted into the installation frame 301 to a preset depth, the bottom of the filter plate 200 contacts the top of the moving strip 3032, with the continuous insertion of the filter plate 200, the filter plate 200 presses the moving strip 3032 to continue to move downwards inside the installation frame 301, and the second spring 3033 is compressed, and when the clamping block 3023 is fixed with the filter plate 200, the second spring 3033 and the moving strip 3032 are in a stable state.

[0068] When the filter plate 200 loses the locking of the clamping block 3023, the second spring 3033 pushes the filter plate 200 upwards by a preset distance through the moving strip 3032 under the action of the second spring 3033, so as to further facilitate the staff to clean or replace the filter plate 200.

[0069] In order to realize the cooling of the battery, the hydrogen fuel cell cooling device disclosed in the embodiment of the utility model further comprises a heat exchange mechanism, a heat dissipation mechanism and a connecting mechanism, wherein the heat exchange mechanism is connected in communication with the heat dissipation mechanism through the connecting mechanism.

[0070] The specific structure of the heat exchange mechanism is not limited in the embodiment of the utility model, and any structure meeting the use requirements of the utility model is within the protection scope of the utility model.

[0071] As one of the embodiments, the heat exchange mechanism disclosed in the embodiment of the utility model comprises a heat exchanger 400, a cooling liquid storage tank 500 and a booster pump 600, the heat exchanger 400, the cooling liquid storage tank 500 and the booster pump 600 are sequentially communicated, and the heat exchanger 400, the cooling liquid storage tank 500 and the booster pump 600 are all arranged on the shell 100.

[0072] The specific structure of the heat exchange mechanism is not limited in the embodiment of the utility model, and any structure meeting the use requirements of the utility model is within the protection scope of the utility model.

[0073] As one of the embodiments, please refer to Figure 7 and Figure 8 The heat dissipation mechanism comprises a heat conduction plate 700, a liquid cooling plate 800 and a finned heat sink 900, wherein the heat conduction plate 700, the liquid cooling plate 800 and the finned heat sink 900 are sequentially arranged from the bottom to the top of the shell 100.

[0074] The heat conduction plate 700, the liquid cooling plate 800 and the finned heat sink 900 are arranged between the air inlet fan 101 and the air outlet fan.

[0075] In order to facilitate the installation of the finned heat sink 900, the heat dissipation mechanism disclosed in the embodiment of the utility model further comprises a mounting plate 1000, wherein the mounting plate 1000 is arranged between the liquid cooling plate 800 and the finned heat sink 900 and is used for mounting the finned heat sink 900.

[0076] The specific structure of the connection mechanism is not limited in the embodiment of the utility model, and any structure meeting the use requirements of the utility model is within the protection scope of the utility model.

[0077] As one of the embodiments, the connection mechanism disclosed in the embodiment of the utility model comprises a first three-way pipe 1100 and a second three-way pipe 1200, three pipe openings of the first three-way pipe 1100 are respectively connected with the heat exchanger 400, one end of the liquid cooling plate 800 and one end of the finned heat sink 900, and three pipe openings of the second three-way pipe 1200 are respectively connected with the booster pump 600, the other end of the liquid cooling plate 800 and the other end of the finned heat sink 900.

[0078] The inside of the cooling liquid storage tank 500 contains cooling liquid, the heat exchanger 400, the cooling liquid storage tank 500, the booster pump 600, the liquid cooling plate 800 and the finned radiator 900 are connected by the first three-way pipe 1100 and the second three-way pipe 1200 to form a cooling liquid circulation system, when the hydrogen fuel cell cooling device is placed above the hydrogen fuel cell, heat is transferred to the inside of the liquid cooling plate 800 under the action of the heat conduction plate 700, the booster pump 600 is turned on, the cooling liquid in the liquid cooling plate 800 flows into the inside of the heat exchanger 400 for cooling treatment, and then part of the heat in the liquid cooling plate 800 is taken away, under the action of the heat exchanger 400, the cooling liquid is cooled and flows into the inside of the cooling liquid storage tank 500, so that the cooled cooling liquid enters the inside of the liquid cooling plate 800 again, and the cooling effect of the liquid cooling plate 800 is achieved, and then the temperature inside the hydrogen fuel cell is reduced.

[0079] Similarly, the cooling liquid is introduced into the inside of the finned radiator 900, which is conducive to cooling the air in contact with the outside of the finned radiator 900, so as to achieve the cooling effect, and under the action of the finned radiator 900 and the liquid cooling plate 800, the scene can be cooled twice, and the air inlet fan 101 and the air outlet fan are turned on, wherein the air inlet fan 101 introduces the hot air in the external environment into the inside of the shell 100, and the hot air is cooled after passing through the finned radiator 900 and then is discharged through the air outlet fan, so as to accelerate the speed of air circulation and the heat exchange efficiency.

[0080] The utility model discloses an embodiment further discloses a rail vehicle comprising the hydrogen fuel cell cooling device disclosed in any one of the above embodiments.

[0081] Since the rail vehicle adopts the hydrogen fuel cell cooling device disclosed in the embodiments of the utility model, the rail vehicle has the technical advantages of the hydrogen fuel cell cooling device disclosed in the embodiments of the utility model, and the embodiments of the utility model will not be described one by one.

[0082] Finally, it also needs to be explained that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the term "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0083] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0084] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydrogen fuel cell cooling device, characterized by, include: The housing has an air inlet and an exhaust outlet on opposite sides, with an intake fan at the air inlet and an exhaust fan at the exhaust outlet. The filter plates are two in number, and they respectively block the air inlet and the air outlet; A filter plate fixing mechanism is fixed to the housing, and the filter plate is detachably installed on the filter plate fixing mechanism.

2. The hydrogen fuel cell cooling apparatus according to claim 1, characterized by The filter plate includes a filter plate body and a filter screen. The filter screen is disposed on the filter plate body, and a slot is also provided on the filter plate body.

3. The hydrogen fuel cell cooling apparatus according to claim 2, wherein The filter plate fixing mechanism includes: A mounting frame is used to mount the filter plate; The filter plate adjusting component consists of two components, which are respectively disposed on both sides of the mounting frame. The filter plate adjusting component can engage or disengage with the slot to fix or disengage the filter plate.

4. The hydrogen fuel cell cooling apparatus according to claim 3, wherein The mounting frame includes a bottom frame and two side frames, which are respectively disposed on both sides of the bottom frame; The side frame includes a mating plate and a baffle. The baffle is vertically disposed on one side of the mating plate, and the mating plate and the baffle are connected to form an installation space for installing the filter plate.

5. The hydrogen fuel cell cooling apparatus of claim 4, wherein The filter plate adjusting component includes a limiting block, a locking block, a first spring, and a moving handle. The limiting block is provided with a limiting groove, and the locking block and the first spring are both installed in the limiting groove. One end of the first spring is connected to the limiting block, and the other end is connected to the locking block. The limiting block has a through hole, and the locking block can be engaged with the filter plate through the through hole under the action of the spring. The top surface of the limiting block has an elongated hole, and the moving handle is connected to the locking block through the elongated hole.

6. The hydrogen fuel cell cooling apparatus of claim 4, wherein It also includes an auxiliary mechanism, which is disposed inside the mounting frame; The auxiliary mechanism includes a mounting strip, a moving strip, and a second spring. The mounting strip is disposed on the bottom end face of the bottom frame, the moving strip is disposed on the upper part of the mounting strip and can fit against the bottom end face of the filter plate, and the second spring is disposed between the mounting strip and the moving strip. The two ends of the movable strip are slidably connected to the side frame, respectively.

7. The hydrogen fuel cell cooling apparatus of claim 1, wherein It also includes a heat exchange mechanism, a heat dissipation mechanism, and a connecting mechanism, wherein the heat exchange mechanism is connected to the heat dissipation mechanism through the connecting mechanism.

8. The hydrogen fuel cell cooling apparatus of claim 7, wherein, The heat exchange mechanism includes a heat exchanger, a coolant storage tank, and a booster pump. The heat exchanger, the coolant storage tank, and the booster pump are connected in sequence, and the heat exchanger, the coolant storage tank, and the booster pump are all mounted on the housing.

9. The hydrogen fuel cell cooling apparatus of claim 8, wherein, The heat dissipation mechanism includes a heat-conducting plate, a liquid-cooling plate, and a finned heat sink, which are arranged sequentially from the bottom to the top of the housing. The heat-conducting plate, the liquid-cooling plate, and the finned heat sink are disposed between the intake fan and the exhaust fan.

10. The hydrogen fuel cell cooling apparatus of claim 9, wherein, The heat dissipation mechanism also includes a mounting plate, which is disposed between the liquid cooling plate and the finned heat sink for mounting the finned heat sink.

11. The hydrogen fuel cell cooling apparatus of claim 10, wherein, The connecting mechanism comprises a first tee pipe and a second tee pipe, three pipe openings of the first tee pipe are communicated with the heat exchanger, one end of the liquid cooling plate and one end of the finned radiator respectively, and three pipe openings of the second tee pipe are communicated with the booster pump, the other end of the liquid cooling plate and the other end of the finned radiator respectively.

12. A rail vehicle, characterized by A hydrogen fuel cell cooling device as claimed in any one of claims 1 to 11.

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