Fan for fuel cell thermal management system, dismounting device for fan and fuel cell thermal management system

Abstract

The utility model provides a fan for a fuel cell thermal management system, which comprises a fan motor, a motor shaft of the fan motor is provided with a matching shaft section and a threaded shaft section formed at the tail end of the matching shaft section; the fan body comprises a hub and is in interference fit with the matching shaft section of the motor shaft at the hub, so that the threaded shaft section penetrates through the hub and protrudes out; the nut is screwed on the protruding threaded shaft section, the screwing direction is opposite to the rotating working direction of the fan, and a dismounting device locking structure suitable for being matched with a dismounting device in shape and axially locked with the dismounting device is formed on the side, away from the fan motor, of the hub in the state that the hub is matched with the matched shaft section. The utility model further provides a corresponding detaching device for detaching the fan body from the fan motor and a corresponding fuel cell thermal management system. According to some embodiments of the utility model, fans with high power, high stability and various sizes can be easily realized, and the disassembly of the fan body and the fan motor is easy to operate.

Description

Technical Field

[0001] The utility model relates to the field of fuel cells, in particular to a fan for a fuel cell thermal management system, a disassembly device for the fan and a fuel cell thermal management system. Background Art

[0002] Currently, more and more models on the market use electricity generated by fuel cells as a power source. Fuel cells often need to be equipped with strong cooling and heat dissipation capabilities to ensure their own efficiency and durability. Therefore, the vast majority of fuel cells on the market are equipped with a thermal management system including a fan to improve heat dissipation efficiency. Due to the low operating voltage and low power of previous fuel cell thermal management systems, a single fan usually cannot provide the air volume that meets the system's heat dissipation requirements. Therefore, the system is generally equipped with multiple fans. Although these fans are usually small in size, the number of fans and the corresponding multiple layout positions also lead to the large-scale system and high integration costs and high complexity. Therefore, in order to solve these problems and to cope with the high-pressure trend of fuel cell thermal management systems, large-diameter, high-power, high-pressure fans are needed to replace the traditional multiple low-pressure, low-power fans.

[0003] On the other hand, in order to ensure the reliability of the large-diameter, high-power high-pressure fan during operation, the fan body and the fan motor are usually mounted as firmly as possible, which in turn makes it difficult to disassemble the two for inspection or component replacement. It can be seen that while providing the high-reliability high-pressure fan, the ease of disassembly must also be considered. Utility Model Content

[0004] To this end, an object of the present invention is to provide a fan for a fuel cell thermal management system, a disassembly device for the fan, and a fuel cell thermal management system, so as to at least partially solve the various technical problems mentioned above.

[0005] According to a first aspect of the utility model, a fan for a fuel cell thermal management system is provided, the fan comprising:

[0006] A fan motor, wherein the motor shaft of the fan motor has a mating shaft section and a threaded shaft section formed at the end of the mating shaft section;

[0007] a fan body, the fan body comprising a hub, and the fan body is interference-fitted with the mating shaft segment of the motor shaft of the fan motor at the hub so that the threaded shaft segment protrudes through the hub; and

[0008] A nut, the nut is screwed onto the protruding threaded shaft section, wherein the screwing direction is opposite to the rotation working direction of the fan,

[0009] Among them, a disassembly device locking structure is formed on the side of the hub facing away from the fan motor when in the mating state with the mating shaft segment, which is suitable for shape-matching with the disassembly device to achieve axial locking with the disassembly device, wherein the disassembly device is used to disassemble the fan body from the fan motor.

[0010] In an exemplary embodiment, the disassembly device locking structure includes a plurality of threaded holes arranged symmetrically about the axis center of the hub.

[0011] In an exemplary embodiment, the locking structure of the disassembly device is formed as an annular boss with the axis of the hub as the axis, and the annular boss is formed with an internal thread on the inner peripheral side or an external thread on the outer peripheral side.

[0012] In an exemplary embodiment, the wheel hub has a wheel hub insert coaxially embedded in the center of the wheel hub, the wheel hub insert is formed with a mating through hole suitable for interference fit with the mating shaft section of the motor shaft, and the disassembly device locking structure is formed on the wheel hub insert.

[0013] In an exemplary embodiment, the hub insert is made of metal, and the hub insert is molded integrally with the hub by injection molding.

[0014] In an exemplary embodiment, the hub is made of a plastic material.

[0015] In an exemplary embodiment, the hub insert has an insert body and a flange portion protruding circumferentially from the insert body, the flange portion is formed with through holes arranged at equal intervals along the circumferential direction, and the matching through holes and the disassembly device locking structure are formed on the insert body.

[0016] In an exemplary embodiment, the mating shaft segment is formed with a first taper that gradually becomes thinner as it moves away from the main body of the fan motor.

[0017] In an exemplary embodiment, the mating through hole is formed with a second taper that gradually becomes thinner as approaching a side facing away from the fan motor in the mating state.

[0018] In an exemplary embodiment, the first taper is equal to or greater than the second taper.

[0019] In an exemplary embodiment, the diameter of the fan is in the range of 500 to 600 mm, the first taper and / or the second taper is in the range of 1:4.5 to 1:5.5, or the cone angle of the mating shaft segment and / or the mating through hole is in the range of 11° to 12°.

[0020] In an exemplary embodiment, the first taper is 1:5.

[0021] In an exemplary embodiment, the cone angle of the mating shaft segment is in the range of 11°25′ to 11°32′, and the cone angle of the mating through hole is in the range of 11°22′ to 11°26′.

[0022] According to a second aspect of the present utility model, a disassembly device for a fan is provided, wherein the fan is a fan for a fuel cell thermal management system according to the first aspect of the present utility model, and the disassembly device comprises:

[0023] device body;

[0024] A fan body locking structure, the fan body locking structure is formed at least at an axial end of the device body and is adapted to be shape-matched with the disassembly device locking structure to achieve axial locking with the fan body;

[0025] a threaded through hole axially penetrating the device body, wherein the threaded through hole is formed so as to align with the terminal end face of the threaded shaft section of the motor shaft when the fan body locking structure and the disassembly device locking structure are in a shape-matched axial locking state; and

[0026] The abutment bolt is configured to abut against the terminal end surface of the threaded shaft section by means of threaded cooperation with the threaded through hole, so that the device body together with the axially locked fan body is separated from the motor shaft.

[0027] In an exemplary embodiment, the fan body locking structure includes a plurality of bolt holes formed corresponding to the respective threaded holes of the disassembly device locking structure as a plurality of threaded holes and penetrating the device body.

[0028] In an exemplary embodiment, the fan body locking structure is formed as an externally threaded boss suitable for threadedly mating with the internal thread on the inner peripheral side of the disassembly device locking structure as an annular boss, or as an internally threaded boss suitable for threadedly mating with the external thread on the outer peripheral side of the disassembly device locking structure as an annular boss.

[0029] According to a third aspect of the present utility model, a fuel cell thermal management system is provided, wherein the fuel cell thermal management system comprises at least one fan for a fuel cell thermal management system according to the first aspect of the present utility model.

[0030] In an exemplary embodiment, the fuel cell thermal management system is a high-pressure fuel cell thermal management system and includes a fan for a fuel cell thermal management system.

[0031] In an exemplary embodiment, the fan for a fuel cell thermal management system has a diameter ranging from 500 to 1200 mm.

[0032] The beneficial effects of the present invention according to the above aspects of the present invention are that it is easy to realize fans of various sizes with high power and high stability, especially high-pressure fans, and the separation between the fan body and the fan motor is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be described in more detail below with reference to the accompanying drawings, so that the principles, features and advantages of the present invention can be better understood. The accompanying drawings include:

[0034] Figure 1 A side cross-sectional view schematically shows a fan for a fuel cell thermal management system according to an exemplary embodiment of the present utility model;

[0035] Figure 2 A partial enlarged view of a fan for a fuel cell thermal management system according to an exemplary embodiment of the utility model is schematically shown;

[0036] Figure 3A A perspective view schematically shows a hub insert of a fan for a fuel cell thermal management system according to an exemplary embodiment of the present invention;

[0037] Figure 3B A perspective cross-sectional view schematically shows a fan body of a fan for a fuel cell thermal management system according to an exemplary embodiment of the present utility model;

[0038] Figure 3C A side cross-sectional view schematically shows a fan body of a fan for a fuel cell thermal management system according to an exemplary embodiment of the present utility model;

[0039] Figure 3D A partial enlarged view of a part of a hub of a fan body of a fan for a fuel cell thermal management system according to an exemplary embodiment of the utility model is schematically shown;

[0040] Figure 4 Schematically illustrates a portion of a fan for a fuel cell thermal management system and a disassembly device for the fan according to an exemplary embodiment of the present utility model; and

[0041] Figure 5 The figure schematically shows a state in which a fan body and a fan motor of a fan for a fuel cell thermal management system according to an exemplary embodiment of the present invention are separated from each other. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the scope of protection of the present invention.

[0043] Figure 1 A side cross-sectional view of a fan 1 for a fuel cell thermal management system according to an exemplary embodiment of the present invention is schematically shown. Figure 2 A partial enlarged view of a fan 1 for a fuel cell thermal management system according to an exemplary embodiment of the present utility model is schematically shown. Figure 3A A perspective view of a hub insert 14 of a fan 1 for a fuel cell thermal management system according to an exemplary embodiment of the present invention is schematically shown. Figure 3B The figure schematically shows a perspective cross-sectional view of a fan body 12 of a fan 1 for a fuel cell thermal management system according to an exemplary embodiment of the present invention. Figure 3C The figure schematically shows a side cross-sectional view of a fan body 12 of a fan 1 for a fuel cell thermal management system according to an exemplary embodiment of the present invention. Figure 3D A partial enlarged view of a part of a hub 121 of a fan body 12 of a fan 1 for a fuel cell thermal management system according to an exemplary embodiment of the present utility model is schematically shown. Figure 4 A part of a fan 1 for a fuel cell thermal management system and a disassembly device 2 for the fan 1 according to an exemplary embodiment of the present invention are schematically shown. Figure 5 The figure schematically shows a state in which the fan body 12 and the fan motor 11 of the fan 1 for a fuel cell thermal management system according to an exemplary embodiment of the present invention are separated from each other.

[0044] like Figures 1 to 5As shown, a fan 1 for a fuel cell thermal management system according to an exemplary embodiment of the utility model includes: a fan motor 11, which has a main body 111 and a motor shaft 112 extending from the main body 111, the motor shaft 112 having a mating shaft segment 112a and a threaded shaft segment 112b formed at the end of the mating shaft segment 112a; a fan body 12, which includes a hub 121, a plurality of blades 122 fixed on the hub 121, and an outer ring 123 fixed on the plurality of blades 122, and the fan body 12 is interference fit with the mating shaft segment 112a of the motor shaft 112 of the fan motor 11 at the hub 121 so that the threaded shaft segment 112b protrudes through the hub 121; and a nut 13, the nut 13 is screwed on the protruding threaded shaft segment 112b, wherein the screwing direction is opposite to the rotation working direction of the fan 1. Through the above-mentioned structure of the fan 1, the fan motor 11 can reliably drive the fan body 12 to rotate by means of the motor shaft 112, and as the rotation speed of the fan 1 increases, the screwing fit between the nut 13 and the threaded shaft section 112b becomes increasingly tight, so that the fan 1 can have good power transmission performance and high reliability. When the fan body 12 needs to be disassembled from the fan motor 11 for inspection purposes or component replacement purposes, the disassembly device 2 for the fan 1 according to the utility model described below can be used, such as Figure 4 For this purpose, the hub 121 of the fan body 12 is formed with a disassembly device locking structure on the side facing away from the fan motor 11 in the mating state with the mating shaft segment 112a, which is suitable for shape-matching with the disassembly device 2 to achieve axial locking with the disassembly device 2, so that the fan body 12 can be separated from the fan motor 11 in the axial direction by operating the disassembly device 2, which will be described in detail later.

[0045] According to an exemplary embodiment of the present invention, Figure 2 , FIG. 3B to FIG. 3D As shown in FIG. 1 , the locking structure of the disassembly device includes a plurality of threaded holes 123 arranged symmetrically about the axis center of the hub 121. The figure schematically shows four threaded holes 123, but the present invention is not limited thereto. Depending on the power and size of the fan, the number of threaded holes 123 can be appropriately selected to be 2, 3 or more than 5. By making the bolt ( Figure 4 , not marked) passes through the device body 21 of the corresponding disassembly device 2 and is threadedly engaged with the corresponding threaded hole 123, so as to achieve axial locking between the hub 121, that is, the fan body 12 and the disassembly device 2.

[0046] According to another exemplary embodiment of the utility model, the locking structure of the disassembly device is formed as an annular boss with the axis of the hub 121 as the axis, and the annular boss is formed with an internal thread on the inner circumference or an external thread on the outer circumference. Here, the size of the annular boss and the size of the internal thread or the external thread can also be determined accordingly according to the different specifications such as the power and size of the fan. By making the thread structure formed on the corresponding disassembly device 2 threadably matched with the internal thread or the external thread of the annular boss, the axial locking between the hub 121, that is, the fan body 12 and the disassembly device 2 can be achieved.

[0047] According to an exemplary embodiment of the present utility model, the wheel hub 121 has a wheel hub insert 14 coaxially embedded in the center of the wheel hub 121, the wheel hub insert 14 is formed with a mating through hole 143 suitable for interference fit with the mating shaft segment 112a of the motor shaft 112, and a disassembly device locking structure is formed on the wheel hub insert 14.

[0048] In one example, the hub 121, preferably the entire fan body 12, is made of a plastic material. Additionally or alternatively, the hub insert 14 is made of metal, and the hub insert 14 is molded as one piece with the hub 121 by injection molding. Additionally or alternatively, the hub insert 14 has an insert body 141 and a flange portion 142 protruding circumferentially from the insert body 141, and the flange portion 142 is formed with through holes 144 arranged at equal intervals along the circumferential direction, so as to help it be firmly molded as one piece with the hub 121 by injection molding, and furthermore, a matching through hole 143 and a disassembly device locking structure are formed on the insert body 141. Thus, in some particularly preferred examples, the disassembly device locking structure, which is also made of metal, can withstand greater stress during the disassembly operation, thereby helping the disassembly operation to be carried out stably and reliably without causing structural damage to other parts of the fan body 12.

[0049] According to an exemplary embodiment of the present invention, the mating shaft segment 112a is formed with a first taper that gradually tapers away from the main body 111 of the fan motor 11. Additionally or alternatively, the mating through hole 143 is formed with a second taper that gradually tapers as it approaches the side away from the fan motor 11 in the mating state. By making at least one of the mating shaft segment 112a and the mating through hole 143 have a taper, the mating between the two can be made tighter and firmer as the rotation speed of the fan 1 increases, thereby achieving higher power transmission efficiency and higher reliability.

[0050] In a preferred example, the mating shaft segment 112a has a first taper and the mating through hole 143 has a second taper, and the first taper is equal to or greater than the second taper. In some examples, the diameter range of the fan 1 is 500-600 mm, the first taper and / or the second taper is in the range of 1:4.5-1:5.5, or the cone angle of the mating shaft segment 112a and / or the mating through hole 143 is in the range of 11°-12°. In some more specific examples, the first taper is 1:5, and / or the cone angle of the mating shaft segment 112a is in the range of 11°25'-11°32', and the cone angle of the mating through hole 143 is in the range of 11°22'-11°25'. Of course, the diameter of the fan 1 according to the utility model is not limited to the above range, it can be less than 500 mm, or greater than 600 mm, for example, it can be in the range of 200 to 1200 mm. Accordingly, the first taper and / or the second taper and the corresponding cone angle can also be appropriately changed according to the diameter size and power transmission requirements of the fan 1.

[0051] The above describes the fan 1 for a fuel cell thermal management system according to some exemplary embodiments of the utility model. According to some exemplary embodiments of the utility model, the fan 1 for a fuel cell thermal management system can obtain higher power transmission efficiency and structural reliability as the rotation speed increases, and is therefore suitable for being implemented as a large-diameter, high-power, high-pressure fan. Moreover, the fan 1 has a disassembly device locking structure that is suitable for shape-matching with the disassembly device 2 and axially locking with it, thereby providing a convenient and reliable disassembly path while providing high power transmission efficiency and high structural reliability.

[0052] Accordingly, if Figure 4 As shown, the utility model also provides a disassembly device 2 for the fan 1 for a fuel cell thermal management system according to the exemplary embodiment of the utility model, which includes: a device body 21; a fan body locking structure, which is formed at least at the axial end of the device body 21 and is suitable for shape-matching with the disassembly device locking structure formed on the fan 1 to achieve axial locking with the fan body 12; a threaded through hole 22 axially passing through the device body 21, the threaded through hole 22 is formed to align with the end end face of the threaded shaft segment 112b of the motor shaft 112 when the fan body locking structure and the disassembly device locking structure are in a shape-matched axial locking state; and an abutment bolt 23, which is configured to be suitable for abutting against the end end face of the threaded shaft segment 112b by means of threaded cooperation with the threaded through hole 22, so that the device body 21 together with the axially locked fan body 12 is detached from the motor shaft 112.

[0053] According to an exemplary embodiment of the present invention, the fan body locking structure includes a plurality of bolt holes 24 formed corresponding to the threaded holes 123 of the disassembly device locking structure as a plurality of threaded holes 123 and penetrating the device body 21. As described above, by making a corresponding number of bolts ( Figure 4 , not marked) passes through the corresponding bolt hole 24 and is threadedly engaged with the corresponding threaded hole 123, thereby achieving axial locking between the hub 121, that is, the fan body 12 and the disassembly device 2.

[0054] According to another exemplary embodiment of the utility model, the fan body locking structure is formed as an external threaded boss suitable for threading with the internal thread on the inner peripheral side of the disassembly device locking structure as an annular boss, or an internal threaded boss suitable for threading with the external thread on the outer peripheral side of the disassembly device locking structure as an annular boss. Through the direct threaded engagement between the annular boss and the internal / external threaded boss, the use of additional bolts can be omitted and the device body 21 can be directly screwed and engaged on the hub 121, thereby achieving axial locking between the hub 121, that is, the fan body 12 and the disassembly device 2.

[0055] When the fan 1 for the fuel cell thermal management system according to the utility model is disassembled by using the disassembly device 2 according to the utility model, the bolt 13 of the fan 1 is first unscrewed from the threaded shaft section 112b of the motor shaft 112. Then, the fan body locking structure of the disassembly device 2 is matched with the disassembly device locking structure of the fan body 12, for example, multiple bolts are inserted through multiple bolt holes 24 and threadedly fastened to the corresponding threaded holes 123, or the internal / external threaded boss at the axial end of the device body 21 is threadedly matched with the annular boss on the fan body 12, so as to complete the axial locking between the disassembly device 2 and the fan body 1. After that, the abutting bolt 23 is threadedly engaged with the threaded through hole 22, and the abutting bolt 23 is continuously screwed, so that the end of the abutting bolt 23 continuously abuts against the end end surface of the threaded shaft section 112b of the motor shaft 112 by means of the threaded engagement between the abutting bolt 23 and the threaded through hole 22, until the device body 21 together with the fan body 12 is detached from the motor shaft 112 by means of the abutment, and the fan motor 11 and the fan body 12 separated from each other are as shown in FIG. Figure 5 Thereafter, the disassembly device 2 can be removed from the fan body 12 .

[0056] The utility model also relates to a fuel cell thermal management system, which includes at least one fan 1 for a fuel cell thermal management system according to the utility model. In some particularly preferred embodiments, the fuel cell thermal management system according to the utility model is a high-pressure fuel cell thermal management system and includes only one fan 1 for a fuel cell thermal management system according to the utility model, and the diameter of the fan 1 can be selected within the size range of 500 to 1200 mm as required.

[0057] Although specific embodiments of the present invention are described in detail herein, they are provided for the purpose of explanation only and should not be considered to limit the scope of the present invention. Various substitutions, changes and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A fan for a fuel cell thermal management system, characterized in that: The fan (1) comprises: A fan motor (11), wherein the motor shaft (112) of the fan motor (11) comprises a mating shaft section (112a) and a threaded shaft section (112b) formed at the end of the mating shaft section (112a); A fan body (12), the fan body (12) comprising a hub (121), and the fan body (12) is interference-fitted with the mating shaft segment (112a) of the motor shaft (112) of the fan motor (11) at the hub (121) so that the threaded shaft segment (112b) penetrates through the hub (121) and protrudes; and A nut (13), wherein the nut (13) is screwed onto the protruding threaded shaft section (112b), wherein the screwing direction is opposite to the rotation working direction of the fan, In which, a disassembly device locking structure is formed on the side of the hub (121) facing away from the fan motor (11) when in a mating state with the mating shaft section (112a), which is suitable for shape-matching with the disassembly device (2) to achieve axial locking with the disassembly device (2), wherein the disassembly device (2) is used to disassemble the fan body (12) from the fan motor (11).

2. The fan for a fuel cell thermal management system according to claim 1, characterized in that: The disassembly device locking structure comprises a plurality of threaded holes (123) arranged symmetrically about the axis center of the hub (121); or The locking structure of the disassembly device is formed as an annular boss with the axis of the hub (121) as the axis, and the annular boss is formed with an internal thread on the inner peripheral side or an external thread on the outer peripheral side.

3. The fan for a fuel cell thermal management system according to claim 1 or 2, characterized in that: The wheel hub (121) has a wheel hub insert (14) coaxially embedded at the center of the wheel hub (121), the wheel hub insert (14) is formed with a matching through hole (143) suitable for interference fit with the matching shaft section (112a) of the motor shaft (112), and the disassembly device locking structure is formed on the wheel hub insert (14).

4. The fan for a fuel cell thermal management system according to claim 3, characterized in that: The wheel hub insert (14) is made of metal, and the wheel hub insert (14) is molded as one piece with the wheel hub (121) by injection molding; The wheel hub (121) is made of plastic material; and / or The wheel hub insert (14) comprises an insert body (141) and a flange portion (142) protruding circumferentially from the insert body (141); the flange portion (142) is formed with through holes (144) arranged at equal intervals along the circumferential direction; the matching through holes (143) and the disassembly device locking structure are formed on the insert body (141).

5. The fan for a fuel cell thermal management system according to claim 3, characterized in that: The mating shaft section (112a) is formed with a first taper that gradually becomes thinner as it moves away from the main body (111) of the fan motor (11); and / or The mating through hole (143) is formed with a second taper that gradually becomes thinner as it approaches the side facing away from the fan motor (11) in the mating state.

6. The fan for a fuel cell thermal management system according to claim 5, characterized in that: The first taper is equal to or greater than the second taper; and / or The diameter of the fan (1) is in the range of 500 to 600 mm, the first taper and / or the second taper is in the range of 1:4.5 to 1:5.5, or the cone angle of the matching shaft section (112a) and / or the matching through hole (143) is in the range of 11° to 12°.

7. The fan for a fuel cell thermal management system according to claim 6, characterized in that: The first taper is 1:5; and / or The cone angle of the matching shaft section (112a) is within the range of 11°25' to 11°32', and the cone angle of the matching through hole (143) is within the range of 11°22' to 11°26'.

8. A disassembly device for a fan, wherein the fan is a fan (1) for a fuel cell thermal management system according to any one of claims 1 to 7, characterized in that: The disassembly device (2) comprises: Device body (21); a fan body locking structure, the fan body locking structure being formed at least at an axial end of the device body (21) and being adapted to be shape-matched with the disassembly device locking structure to achieve axial locking with the fan body (12); a threaded through hole (22) axially penetrating the device body (21), the threaded through hole (22) being formed so that when the fan body locking structure and the disassembly device locking structure are in a shape-matched axial locking state, the threaded through hole (22) is aligned with the terminal end face of the threaded shaft section (112b) of the motor shaft (112); and Abutment bolt (23), wherein the abutment bolt (23) is configured to abut against the end face of the threaded shaft section (112b) by means of threaded cooperation with the threaded through hole (22), thereby disengaging the device body (21) together with the axially locked fan body (12) from the motor shaft (112).

9. The disassembly device for a fan according to claim 8, characterized in that: The fan body locking structure includes a plurality of bolt holes (24) formed corresponding to each threaded hole (123) of the disassembly device locking structure as a plurality of threaded holes (123) and penetrating the device body (21); or The fan body locking structure is formed as an external threaded boss suitable for threaded cooperation with the internal thread on the inner peripheral side of the disassembly device locking structure as an annular boss, or as an internal threaded boss suitable for threaded cooperation with the external thread on the outer peripheral side of the disassembly device locking structure as an annular boss.

10. A fuel cell thermal management system, characterized in that: The fuel cell thermal management system comprises at least one fan (1) for a fuel cell thermal management system according to any one of claims 1-7.

11. The fuel cell thermal management system according to claim 10, characterized in that: The fuel cell thermal management system is a high-pressure fuel cell thermal management system and comprises a fan (1) for a fuel cell thermal management system.

12. The fuel cell thermal management system according to claim 11, characterized in that: The diameter of the fan (1) used in the fuel cell thermal management system ranges from 500 to 1200 mm.

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