Compressed air radiator

Abstract

The invention relates to the technical field of radiating devices, in particular to a compressed air radiator which comprises a radiator body, an upper cover and a bottom cover, the upper cover is provided with a first S-shaped groove, the bottom cover is provided with a second S-shaped groove with the same shape as the first S-shaped groove, the upper cover is buckled on the bottom cover, and the lower cover is buckled on the bottom cover. The first S-shaped groove and the second S-shaped groove are buckled to form a compressed air flow channel; the inlet connector is arranged on the radiator body, and the inlet connector communicates with an inlet of the compressed air flow channel; the outlet connector is arranged on the radiator body, and the outlet connector communicates with an outlet of the compressed air flow channel; and the cooling fan module is arranged on the side, away from the bottom cover, of the upper cover, and part of compressed air exhausted through the outlet connector can enter the cooling fan module so as to push the cooling fan module to work. The manufacturing difficulty is reduced, the compressed air can be effectively cooled, and the cooling effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation devices, and in particular to a compressed air radiator. Background Art

[0002] Usually, the compressed air of commercial vehicles flows out of the air compressor and is dissipated by cooling coils to reduce the temperature of the compressed air. However, this cooling coil structure has problems such as long pipes and difficult electrophoresis process in the tube, which leads to complicated manufacturing process. In addition, the long pipes of the cooling coil structure increase the flow resistance, and the heat dissipation effect is average.

[0003] Therefore, a compressed air radiator is needed to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a compressed air radiator which reduces the difficulty of manufacturing and can effectively dissipate the heat of compressed air to ensure the heat dissipation effect.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Compressed air radiator, comprising:

[0007] The radiator body comprises an upper cover and a bottom cover, wherein the upper cover is provided with a first S-shaped groove, and the bottom cover is provided with a second S-shaped groove having the same shape as the first S-shaped groove, the upper cover is buckled on the bottom cover, and the first S-shaped groove and the second S-shaped groove are buckled to form a compressed air flow channel;

[0008] An inlet joint, wherein the inlet joint is arranged on the radiator body and is communicated with the inlet of the compressed air flow channel;

[0009] An outlet joint, wherein the outlet joint is arranged on the radiator body and is communicated with the outlet of the compressed air flow channel;

[0010] A cooling fan module is arranged on a side of the upper cover away from the bottom cover, and part of the compressed air discharged through the outlet joint can enter the cooling fan module to drive the cooling fan module to work.

[0011] In some embodiments, positioning grooves are opened on both sides of the first S-shaped groove along the extension direction of the first S-shaped groove, and positioning protrusions are provided on both sides of the second S-shaped groove along the extension direction of the second S-shaped groove, and the positioning protrusions are located in the positioning grooves.

[0012] In some embodiments, positioning holes are formed in the upper cover, connecting holes opposite to the positioning holes are formed in the bottom cover, and a fastener passes through the positioning hole to be connected with the connecting hole, and / or mounting holes are formed on a side of the bottom cover facing away from the upper cover, and the radiator body is connected to the vehicle frame or the radiator bracket through the mounting holes.

[0013] In some embodiments, the cooling fan module includes a guide pipe, a turbine assembly, a transmission assembly, and a fan assembly. One end of the guide pipe communicates with the outlet joint, the other end of the guide pipe communicates with the turbine assembly, the turbine assembly is arranged on the upper cover, the turbine assembly is in transmission connection with the transmission assembly, the transmission assembly is in transmission connection with the fan assembly, and compressed air can enter the turbine assembly through the guide pipe to drive the turbine assembly to rotate, and the turbine assembly drives the fan assembly to rotate through the transmission assembly.

[0014] In some embodiments, the turbine assembly includes a volute and a turbine. The volute is fixedly arranged on the upper cover, the turbine is rotatably arranged in the volute, the volute communicates with the guide pipe, and the turbine is in transmission connection with the transmission assembly.

[0015] In some embodiments, the transmission assembly includes a sun gear, a planet carrier, a plurality of planet gears, and an internal gear ring. The sun gear is fixedly connected coaxially with the turbine, the planet carrier is fixedly arranged on the volute, the planet gears are rotatably arranged on the planet carrier, and a plurality of the planet gears are all meshed with the sun gear. The internal gear ring is meshed with the plurality of planet gears, and the internal gear ring is connected with the fan assembly.

[0016] In some embodiments, the fan assembly includes a fan shaft, and a plurality of fan blades are arranged at equal intervals on the outer side of the fan shaft along the circumferential direction of the fan shaft, and the internal gear ring is fixedly arranged on the fan shaft.

[0017] In some embodiments, a plurality of heat dissipation ribs are arranged on a side of the upper cover facing away from the bottom cover, and the plurality of heat dissipation ribs are arranged at intervals in a radial pattern.

[0018] In some embodiments, the cooling fan module further includes an air exhaust member. One end of the air exhaust member communicates with the air outlet of the volute, and the other end of the air exhaust member has an air exhaust port, and the air exhaust port faces the channel formed by the adjacent heat dissipation ribs.

[0019] In some embodiments, a thermal switch is arranged at the outlet joint, the thermal switch is located at the communication position between the guide pipe and the outlet joint, and the thermal switch is used to control the on-off of the guide pipe and the outlet joint.

[0020] Advantages of the present invention:

[0021] The present invention provides a compressed air radiator, wherein a first S-shaped groove is provided on the upper cover, a second S-shaped groove having the same shape as the first S-shaped groove is provided on the bottom cover, the upper cover is buckled on the bottom cover, and the first S-shaped groove and the second S-shaped groove are buckled to form a compressed air flow channel. An inlet joint and an outlet joint are provided at the inlet and outlet of the compressed air flow channel. A cooling fan module is provided on the side of the upper cover away from the bottom cover, and part of the compressed air discharged through the outlet joint can enter the cooling fan module to drive the cooling fan module to work. By dividing the radiator body into an upper cover and a bottom cover, a first S-shaped groove is provided on the upper cover, and a second S-shaped groove is provided on the bottom cover, so as to facilitate the in-tube electrophoresis process, and then the upper cover is buckled with the bottom cover. It is convenient to manufacture and reduce the difficulty of processing. By providing a cooling fan module and using part of the compressed air as a power source, the cooling fan module is driven to force the upper cover to dissipate heat, thereby accelerating the speed of air flow, increasing the speed of heat exchange between the compressed air and the outside air through the upper cover, and ensuring the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 is a schematic diagram of a compressed air radiator of the present invention;

[0024] Figure 2 It is a schematic diagram of an upper cover in a compressed air radiator of the present invention;

[0025] Figure 3 It is a schematic diagram of a lower cover in a compressed air radiator of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of a cooling fan module in a compressed air radiator of the present invention;

[0027] Figure 5 It is a schematic diagram of a transmission component in a compressed air radiator of the present invention;

[0028] Figure 6 is a schematic diagram of a fan assembly in a compressed air radiator of the present invention;

[0029] Figure 7 It is a schematic diagram of a thermal switch in a compressed air radiator of the present invention.

[0030] In the figure:

[0031] 1. Radiator body; 11. Upper cover; 111. First S-shaped groove; 112. Positioning groove; 113. Positioning hole; 114. Heat dissipation rib; 12. Bottom cover; 121. Second S-shaped groove; 122. Positioning protrusion; 13. Fastener; 2. Inlet joint; 3. Outlet joint; 4. Cooling fan module; 41. Diversion pipe; 42. Turbine assembly; 421. Volute; 422. Turbine; 43. Transmission assembly; 431. Sun gear; 432. Planet carrier; 433. Planet gear; 434. Internal gear ring; 44. Fan assembly; 441. Fan shaft; 442. Fan blade; 45. Exhaust component; 451. Vertical pipe; 452. Horizontal pipe; 5. Fan cover; 6. Thermal switch. Detailed implementation manner

[0032] Before explaining any implementation manner of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements described in the following description or shown in the above drawings.

[0033] In the present application, the terms "comprising", "including", "having" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0034] In the present application, the terms "connect", "combine", "couple", "mount" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, for example, direct connection means that two parts or components are connected together without the need to provide an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connection or coupling, and may include electrical connection or coupling.

[0035] In the present application, those of ordinary skill in the art will understand that the functions performed by components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by parts can also be performed by one part, one component, or a combination of multiple parts.

[0036] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0037] In order to reduce the difficulty of manufacturing compressed air radiators and effectively dissipate the heat of compressed air to ensure the heat dissipation effect, such as Figures 1 - 7 As shown, the present invention provides a compressed air radiator. The compressed air radiator comprises a radiator body 1, an inlet joint 2, an outlet joint 3 and a cooling fan module 4.

[0038] The radiator body 1 includes an upper cover 11 and a bottom cover 12. A first S-shaped groove 111 is provided on the upper cover 11, and a second S-shaped groove 121 having the same shape as the first S-shaped groove 111 is provided on the bottom cover 12. The upper cover 11 is buckled on the bottom cover 12, and the first S-shaped groove 111 and the second S-shaped groove 121 are buckled to form a compressed air flow channel. The inlet joint 2 is fixedly arranged on the radiator body 1, and the inlet joint 2 is connected to the inlet of the compressed air flow channel. The outlet joint 3 is arranged on the radiator body 1, and the outlet joint 3 is connected to the outlet of the compressed air flow channel. The cooling fan module 4 is arranged on the side of the upper cover 11 away from the bottom cover 12, and part of the compressed air discharged through the outlet joint 3 can enter the cooling fan module 4 to drive the cooling fan module 4 to work.

[0039] By dividing the radiator body 1 into an upper cover 11 and a bottom cover 12, a first S-shaped groove 111 is provided on the upper cover 11, and a second S-shaped groove 121 is provided on the bottom cover 12, so as to facilitate the in-tube electrophoresis process, and then the upper cover 11 is buckled with the bottom cover 12. It is convenient for manufacturing and reduces the difficulty of processing. By setting a cooling fan module 4 and using part of the compressed air as a power source, the cooling fan module 4 is driven to force the upper cover 11 to dissipate heat, thereby accelerating the speed of air flow, increasing the speed of heat exchange between the compressed air and the outside air through the upper cover 11, and ensuring the heat dissipation effect.

[0040] In some embodiments, the cross-section of the compressed air flow channel is a rounded rectangle. The compressed air flow channel is designed as an S-shaped flow channel, which is beneficial to increasing the contact area between the inner surface of the radiator body 1 and the high-temperature compressed air, so that heat can be effectively dissipated through the upper cover 11 and the bottom cover 12. The use of a rounded rectangle cross-section for the compressed air flow channel is beneficial to increasing the flow area, thereby ensuring the flow velocity of the compressed air.

[0041] In some embodiments, one side of the cross-section of the inlet joint 2 is a circular cross-section, and the other side is a rounded rectangle cross-section. The inlet joint 2 is connected to the upper cover 11 and the bottom cover 12 by bolts, and a rubber gasket can be optionally installed between the inlet joint 2 and the upper cover 11 and the bottom cover 12. Two circles of bosses are arranged on the circular pipe section of the inlet joint 2 to facilitate docking with the air compressor. The structure of the outlet joint 3 is the same as that of the inlet joint 2, and will not be elaborated here.

[0042] In some embodiments, positioning grooves 112 are opened on both sides of the first S-shaped groove 111 along the extension direction of the first S-shaped groove 111, and positioning protrusions 122 are provided on both sides of the second S-shaped groove 121 along the extension direction of the second S-shaped groove 121. The positioning protrusions 122 are located in the positioning grooves 112. Through the above settings, positioning can be performed when the upper cover 11 and the bottom cover 12 are docked, so as to facilitate the docking of the upper cover 11 and the bottom cover 12. Moreover, the cooperation of the positioning grooves 112 and the positioning protrusions 122 can play a certain sealing role. In order to further improve the sealing performance between the upper cover 11 and the bottom cover 12, a gasket can be provided between the upper cover 11 and the bottom cover 12 to block the gap between the upper cover 11 and the bottom cover 12 through the gasket.

[0043] In some embodiments, positioning holes 113 are opened on the upper cover 11, and connection holes opposite to the positioning holes 113 are opened on the bottom cover 12. The fasteners 13 pass through the positioning holes 113 and are connected to the connection holes, and / or mounting holes are opened on the side of the bottom cover 12 facing away from the upper cover 11. The radiator body 1 is connected to the vehicle frame or the radiator bracket through the mounting holes. In this embodiment, the fasteners 13 are bolts, and the connection holes are threaded holes. The fasteners 13 pass through the positioning holes 113 and are screwed to the connection holes, thereby realizing the fixation between the upper cover 11 and the bottom cover 12. Mounting holes are opened on the side of the bottom cover 12 facing away from the upper cover 11, which is convenient for the installation of the radiator body 1. When the radiator body 1 is installed on the vehicle frame, the bottom cover 12 has a large contact area with the longitudinal surface of the vehicle frame, which can achieve the purpose of rapid heat conduction. Even when the ambient temperature is relatively high, rapid heat dissipation can still be achieved, ensuring that the temperature of the gas flowing out of the outlet joint 3 remains at a relatively low level.

[0044] In some embodiments, the cooling fan module 4 includes a guide pipe 41, a turbine assembly 42, a transmission assembly 43, and a fan assembly 44. One end of the guide pipe 41 is communicated with the outlet joint 3, and the other end of the guide pipe 41 is communicated with the turbine assembly 42. The turbine assembly 42 is arranged on the upper cover 11. The turbine assembly 42 is in transmission connection with the transmission assembly 43, and the transmission assembly 43 is in transmission connection with the fan assembly 44. Compressed air can enter the turbine assembly 42 through the guide pipe 41 to drive the turbine assembly 42 to rotate, and the turbine assembly 42 drives the fan assembly 44 to rotate through the transmission assembly 43. Through the above arrangement, the fan assembly 44 can be driven to work by compressed air, so as to forcibly dissipate heat from the radiator body 1 and ensure that the temperature of the compressed air is effectively reduced.

[0045] In some embodiments, the turbine assembly 42 includes a volute 421 and a turbine 422. The volute 421 is fixedly arranged on the upper cover 11, the turbine 422 is rotatably arranged in the volute 421, the volute 421 is communicated with the guide pipe 41, and the turbine 422 is in transmission connection with the transmission assembly 43. After the compressed air enters the volute 421, it pushes the turbine 422 to rotate, providing power for the fan assembly 44. By adopting the above method, power output can be realized without arranging a driving part.

[0046] In some embodiments, the transmission assembly 43 includes a sun gear 431, a planet carrier 432, a plurality of planet gears 433, and an internal gear ring 434. The sun gear 431 is fixedly connected coaxially with the turbine 422, the planet carrier 432 is fixedly arranged on the volute 421, the planet gears 433 are rotatably arranged on the planet carrier 432, and a plurality of planet gears 433 are all meshed with the sun gear 431. The internal gear ring 434 is meshed with the plurality of planet gears 433, and the internal gear ring 434 is connected with the fan assembly 44. When the compressed air enters the volute 421 to push the turbine 422 to rotate, the turbine 422 drives the sun gear 431 to rotate, and the sun gear 431 drives the planet gears 433 to rotate around their own axes. At this time, since the planet carrier 432 is fixed, the planet gears 433 act as idler gears. The planet gears 433 drive the internal gear ring 434 to rotate, so as to drive the fan assembly 44 to rotate through the internal gear ring 434 for forced heat dissipation. In order to ensure airtightness, a sealing ring is arranged between the volute 421 and the sun gear 431. Through the above arrangement, the function of speed reduction and torque increase can be realized, and it is ensured that the fan assembly 44 can rotate effectively for temperature reduction.

[0047] In some embodiments, the fan assembly 44 includes a fan shaft 441. A plurality of fan blades 442 are arranged at equal intervals along the circumferential direction of the fan shaft 441 outside the fan shaft 441. The internal gear ring 434 is fixedly arranged on the fan shaft 441. In this embodiment, the fan shaft 441 is a hollow shaft, and the internal gear ring 434 is fixed inside the fan shaft 441. The fan shaft 441 is sleeved on the transmission assembly 43 to protect the transmission assembly 43. When the internal gear ring 434 is driven to rotate, the internal gear ring 434 drives the fan shaft 441 to rotate synchronously, thereby achieving forced heat dissipation.

[0048] In some embodiments, a plurality of heat dissipation ribs 114 are provided on one side of the upper cover 11 facing away from the bottom cover 12. The plurality of heat dissipation ribs 114 are arranged at intervals in a radial pattern. The heat dissipation ribs 114 are used to increase the heat dissipation area, and the radially arranged heat dissipation ribs 114 can also play a role in guiding the flow. Under normal circumstances, when the high-temperature compressed air flows through the compressed air flow channel between the upper cover 11 and the bottom cover 12, the upper cover 11 absorbs heat and transfers the heat to the air through the heat dissipation ribs 114. The heat conduction and natural convection of the radiator body 1 can meet the heat dissipation requirements under low-temperature and normal-temperature conditions.

[0049] In some embodiments, the cooling fan module 4 further includes an exhaust member 45. One end of the exhaust member 45 is communicated with the air outlet of the volute 421, and the other end of the exhaust member 45 has an air outlet, and the air outlet faces the channel formed by the adjacent heat dissipation ribs 114. The compressed gas after doing work flows out through the air outlet of the volute 421, and then flows into the exhaust member 45 and is discharged. Therefore, when the high-speed air flow blows on the heat dissipation ribs 114 of the upper cover 11, it can play a role in further forced convection cooling. In this embodiment, the exhaust member 45 is in a T shape and includes a vertical pipe 451 and a horizontal pipe 452 that are communicated with each other. The vertical pipe 451 is communicated with the volute 421, and a plurality of air outlets are provided on the horizontal pipe 452, which can effectively guide and disperse the discharged compressed gas and ensure the consistency of the cooling effect.

[0050] In some embodiments, a fan cover 5 is provided on the upper cover 11. The fan cover 5 is arranged above the upper cover 11 and is connected to the upper cover 11 by bolts. The fan cover 5 plays a role in protecting the upper cover 11, the fan assembly 44, the diversion pipe 41, and the exhaust member 45. At the same time, it isolates the external environment and prevents the fan assembly 44 from causing harm to the operator. The top and periphery of the fan cover 5 are designed with hollow openings to enhance the ventilation effect.

[0051] In some embodiments, a thermal switch 6 is provided at the outlet joint 3. The thermal switch 6 is located at the connection between the diversion pipe 41 and the outlet joint 3, and is used to control the on-off of the diversion pipe 41 and the outlet joint 3. The thermal switch 6 can automatically adjust its switch state according to the gas temperature on the outlet side. When the gas temperature exceeds the opening threshold, the strain gauge of the thermal switch 6 undergoes a large deformation, and the thermal switch 6 is in the open position. Then, a part of the gas reaches the turbine assembly 42 through the diversion pipe 41 to drive the turbine 422 to work.

[0052] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Compressed air radiator, characterized in that, include: A radiator body (1) comprises an upper cover (11) and a bottom cover (12); the upper cover (11) is provided with a first S-shaped groove (111); the bottom cover (12) is provided with a second S-shaped groove (121) having the same shape as the first S-shaped groove (111); the upper cover (11) is buckled onto the bottom cover (12); the first S-shaped groove (111) and the second S-shaped groove (121) are buckled to form a compressed air flow channel; An inlet joint (2), the inlet joint (2) being arranged on the radiator body (1), and the inlet joint (2) being in communication with the inlet of the compressed air flow channel; An outlet joint (3), the outlet joint (3) being arranged on the radiator body (1), and the outlet joint (3) being in communication with the outlet of the compressed air flow channel; A cooling fan module (4), wherein the cooling fan module (4) is arranged on a side of the upper cover (11) away from the bottom cover (12), and part of the compressed air discharged through the outlet joint (3) can enter the cooling fan module (4) to drive the cooling fan module (4) to work.

2. The compressed air radiator according to claim 1, characterized in that, Positioning grooves (112) are provided on both sides of the first S-shaped groove (111) along the extension direction of the first S-shaped groove (111), and positioning protrusions (122) are provided on both sides of the second S-shaped groove (121) along the extension direction of the second S-shaped groove (121), and the positioning protrusions (122) are located in the positioning grooves (112).

3. The compressed air radiator according to claim 1, wherein, The upper cover (11) is provided with a positioning hole (113), the bottom cover (12) is provided with a connecting hole opposite to the positioning hole (113), the fastener (13) passes through the positioning hole (113) and is connected to the connecting hole, and / or the bottom cover (12) is provided with a mounting hole on a side facing away from the upper cover (11), and the radiator body (1) is connected to a vehicle frame or a radiator bracket via the mounting hole.

4. The compressed air radiator according to claim 1, wherein The cooling fan module (4) comprises a guide tube (41), a turbine assembly (42), a transmission assembly (43) and a fan assembly (44); one end of the guide tube (41) is connected to the outlet joint (3); the other end of the guide tube (41) is connected to the turbine assembly (42); the turbine assembly (42) is arranged on the upper cover (11); the turbine assembly (42) is transmission-connected to the transmission assembly (43); the transmission assembly (43) is transmission-connected to the fan assembly (44); compressed air can enter the turbine assembly (42) through the guide tube (41) to drive the turbine assembly (42) to rotate; the turbine assembly (42) drives the fan assembly (44) to rotate through the transmission assembly (43).

5. The compressed air radiator according to claim 4, characterized in that, The turbine assembly (42) includes a volute casing (421) and a turbine (422). The volute casing (421) is fixedly arranged on the upper cover (11). The turbine (422) is rotatably arranged in the volute casing (421). The volute casing (421) is communicated with the guide pipe (41). The turbine (422) is in transmission connection with the transmission assembly (43).

6. The compressed air radiator according to claim 5, characterized in that, The transmission assembly (43) includes a sun gear (431), a planet carrier (432), a plurality of planet gears (433) and an internal gear ring (434). The sun gear (431) is fixedly connected coaxially with the turbine (422). The planet carrier (432) is fixedly arranged on the volute casing (421). The planet gears (433) are rotatably arranged on the planet carrier (432). And a plurality of the planet gears (433) are all meshed with the sun gear (431). The internal gear ring (434) is meshed with the plurality of planet gears (433). The internal gear ring (434) is connected with the fan assembly (44).

7. The compressed air radiator according to claim 6, characterized in that, The fan assembly (44) includes a fan shaft (441). A plurality of fan blades (442) are arranged at equal intervals along the circumferential direction of the fan shaft (441) outside the fan shaft (441). The internal gear ring (434) is fixedly arranged on the fan shaft (441).

8. The compressed air radiator according to claim 5, characterized in that, A plurality of heat dissipation ribs (114) are arranged on one side of the upper cover (11) facing away from the bottom cover (12). The plurality of heat dissipation ribs (114) are arranged at intervals in a radial pattern.

9. The compressed air radiator according to claim 8, wherein, The cooling fan module (4) further includes an exhaust member (45). One end of the exhaust member (45) is communicated with the air outlet of the volute casing (421). The other end of the exhaust member (45) has an air outlet, and the air outlet is directly opposite to the channel formed by the adjacent heat dissipation ribs (114).

10. The compressed air radiator according to claim 4, characterized in that, A thermal switch (6) is arranged at the outlet joint (3). The thermal switch (6) is located at the connection between the guide pipe (41) and the outlet joint (3). The thermal switch (6) is used to control the on-off of the guide pipe (41) and the outlet joint (3).

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