A cooling device and a ship roll-damping gyroscope

Abstract

This invention discloses a cooling device and a marine anti-roll gyroscope. The cooling device includes: a static heat sink located outside the shell and connected to the shell; a second cavity formed between the static heat sink and the shell, the second cavity communicating with a first cavity; a moving heat sink located within the second cavity and connected to a rotating component; the moving heat sink rotating synchronously with the rotating component, and heat from the rotating component and / or the heat-generating component being transferred to the moving heat sink; and a first spiral groove disposed on the outer wall of the moving heat sink; the first spiral groove cooperating with the static heat sink to form a first spiral pump; a circulation channel formed between the moving and static heat sinks; the first spiral pump pumping gas from the first cavity into the circulation channel, so that heat from the moving heat sink is transferred to the static heat sink and discharged through the gas. This invention can increase the gas pressure in the circulation channel in a closed, low-pressure environment, thereby increasing the convective heat transfer coefficient of the gas in the circulation channel and rapidly cooling the heat-generating component.

Description

Technical Field

[0001] This invention relates to the field of cooling technology, and more particularly to a cooling device for rotating components and a ship anti-roll gyroscope. Background Technology

[0002] Boats and vessels sway under the influence of waves. Anti-roll gyroscopes, as marine anti-roll devices, use the gyroscopic torque generated by the precession of the high-speed rotating rotor to counteract the wave torque, thus achieving a roll reduction effect and maintaining the stability of the vessel. Due to the harsh marine environment, anti-roll gyroscopes are susceptible to corrosion from sea salt spray. Therefore, the rotor system of anti-roll gyroscopes is usually sealed with a shell to prevent corrosion and extend their service life.

[0003] The rotor of a roll-damping gyroscope is typically supported by precision bearings and driven by a motor to achieve its rotational speed; the higher the rotor speed, the better the roll-damping effect. Since high speeds usually generate significant wind resistance, the inside of the roll-damping gyroscope's casing needs to maintain a low-pressure environment to ensure the rotor's high-speed rotation. However, in this low-pressure environment, the heat generated by the high-speed rotation of the bearings with the rotor is difficult to dissipate, easily leading to excessively high internal temperatures and affecting the gyroscope's lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a cooling device and a ship roll-damping gyroscope. A first spiral pump can pump the rarefied gas in the first cavity to the circulation channel through the ventilation channel to increase the air pressure in the circulation channel, thereby increasing the convective heat transfer coefficient of the gas in the circulation channel, and thus achieving rapid cooling of the rotating parts and heat-generating components.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A cooling device for cooling a rotating component and / or a heat-generating component on the rotating component; the rotating component is located within a first cavity of a housing and is rotatably connected to the housing; the cooling device comprises:

[0007] A static heat dissipation plate is located outside the housing and connected to the housing; a second cavity is formed between the static heat dissipation plate and the housing, and the second cavity communicates with the first cavity;

[0008] A movable heat sink, located within the second cavity, is connected to the rotating component; the movable heat sink rotates synchronously with the rotating component, and heat from the rotating component and / or the heat-generating element is transferred to the movable heat sink; and

[0009] A first spiral groove is provided on the outer wall of the moving heat sink; the first spiral groove cooperates with the stationary heat sink to form a first spiral pump;

[0010] A circulation channel is formed between the moving heat sink and the stationary heat sink; the first spiral pump is used to pump the gas in the first cavity into the circulation channel so that the heat on the moving heat sink is transferred to the stationary heat sink through the gas and discharged.

[0011] Preferably, the cooling device further includes: a plurality of venting channels; each of the venting channels penetrates the housing and is used to connect the first cavity and the second cavity.

[0012] Preferably, the cooling device further includes: a guiding device disposed within the circulation channel to form a guiding path so that the gas within the circulation channel flows along the guiding path.

[0013] Preferably, the guiding device includes:

[0014] The first cooling baffle is fixed in a vortex shape to the end face of the static heat sink near the housing; and the gap between the first cooling baffle forms a first cooling groove.

[0015] The second cooling baffle is radially fixed to the end face of the moving heat sink away from the housing and is disposed opposite to the first cooling baffle; and the gap between the second cooling baffle forms a second cooling groove.

[0016] Preferably, a first common channel is formed between the outermost ring of the first cooling baffle and the outermost ring of the second cooling baffle and the inner sidewall of the dynamic heat sink;

[0017] The innermost rings of the first cooling baffle and the innermost rings of the second cooling baffle form a second common channel;

[0018] Both the first common channel and the second common channel are connected to the first cooling tank and the second cooling tank; and the first common channel, the first cooling tank, the second common channel and the second cooling tank constitute the guide path.

[0019] Preferably, the guiding device further includes: an air-blocking device located between the first cooling baffle and the second cooling baffle, fixedly connected to the first cooling baffle and / or the second cooling baffle, for preventing the first cooling tank and the second cooling tank from being directly connected.

[0020] Preferably, the cooling device further includes: a second spiral groove disposed on the inner sidewall of the moving heat sink; the second spiral groove cooperates with the air-blocking device fixed on the first cooling baffle to form a second spiral pump, which is used to drive the gas to circulate in the circulation channel.

[0021] Preferably, the cooling device further includes: a coolant disposed on the end face of the static heat sink away from the housing, for absorbing heat from the static heat sink.

[0022] On the other hand, the present invention also provides a ship roll-damping gyroscope, comprising: a shell having a first cavity, a rotating component located within the first cavity, and a cooling device as described above; wherein the rotating component is rotatably connected to the shell; and the first cavity is filled with gas.

[0023] Compared with the prior art, the present invention has at least one of the following advantages:

[0024] The present invention provides a cooling device and a ship roll-damping gyroscope. The first spiral pump can pump the gas in the first cavity to the circulation channel through the vent, so that the heat transferred to the moving heat sink by the rotating parts and / or the heat-generating parts can be transferred to the stationary heat sink through the gas, and finally discharged to the outside by the stationary heat sink, thereby achieving rapid cooling of the rotating parts and the heat-generating parts.

[0025] In this invention, the gas in the first cavity is pumped into the circulation channel, which can increase the gas pressure in the circulation channel and maintain the gas pressure in the circulation channel within a certain range, thereby effectively increasing the convective heat transfer coefficient of the gas in the circulation channel, and thus effectively improving the heat dissipation efficiency of the cooling device.

[0026] In this invention, after the gas in the first cavity is pumped into the circulation channel, the air pressure in the first cavity can be reduced, resulting in less wind resistance and less heat generated when the rotating part rotates at high speed.

[0027] In this invention, a guiding device can form a guiding path, allowing the gas in the circulation channel to flow along the guiding path, thereby increasing the gas flow rate and thus improving the heat dissipation efficiency of the cooling device.

[0028] In this invention, the second spiral pump can drive the gas to circulate in the circulation channel, thereby controlling the flow direction of the gas in the circulation channel and increasing the flow rate of the gas, thereby improving the gas circulation efficiency and thus improving the heat dissipation efficiency of the cooling device. Attached Figure Description

[0029] Figure 1 This is a cross-sectional schematic diagram of a cooling device provided in an embodiment of the present invention;

[0030] Figure 2This is a cross-sectional schematic diagram of a static heat dissipation plate and a guide device in a cooling device according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the first cooling baffle in a cooling device according to an embodiment of the present invention;

[0032] Figure 4 This is a cross-sectional schematic diagram of a dynamic heat sink and guide device in a cooling device according to an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the second cooling baffle in a cooling device according to an embodiment of the present invention;

[0034] Figure 6 This is a cross-sectional schematic diagram of a first air-barrier component in a cooling device according to an embodiment of the present invention;

[0035] Figure 7 This is a cross-sectional schematic diagram of a second air-barrier component in a cooling device according to an embodiment of the present invention;

[0036] Figure 8 This is a cross-sectional schematic diagram of a ship roll-damping gyroscope provided in an embodiment of the present invention. Detailed Implementation

[0037] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the cooling device and ship anti-roll gyroscope proposed in this invention. The advantages and features of this invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the embodiments of this invention. Please refer to the drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Combined with appendix Figures 1-8 As shown, this embodiment provides a cooling device for cooling a rotating component 101 and / or a heat-generating component on the rotating component 101; the rotating component 101 is located within a first cavity 103 of a housing 102, and the rotating component 101 is rotatably connected to the housing 102; the cooling device includes: a static heat dissipation plate 210, located outside the housing 102 and connected to the housing 102; a second cavity is formed between the static heat dissipation plate 210 and the housing 102, and the second cavity communicates with the first cavity 103; a dynamic heat dissipation plate 220, located within the second cavity and connected to the rotating component 101; The moving heat sink 220 rotates synchronously with the rotating member 101, and the heat from the rotating member 101 and / or the heat-generating component is transferred to the moving heat sink 220; and a first spiral groove 240 is disposed on the outer side wall of the moving heat sink 220; the first spiral groove 240 cooperates with the stationary heat sink 210 to form a first spiral pump; a circulation channel is formed between the moving heat sink 220 and the stationary heat sink 210; the first spiral pump is used to pump the gas in the first cavity 103 into the circulation channel, so that the heat on the moving heat sink 220 is transferred to the stationary heat sink 210 through the gas and discharged.

[0040] Specifically, the rotating component 101 can be rotatably connected to the housing 102 via the bearing 104, and the rotating component 101 can be driven to rotate by the motor 105. In this case, the heating element is the bearing 104 and the motor 105. The heat on the heating element can be transferred to the rotating component 101 through direct contact, and the heat on the rotating component 101 can be transferred to the moving heat sink 220 through direct contact. When the gas flows in the circulation channel formed by the moving heat sink 220 and the stationary heat sink 210, the heat on the moving heat sink 220 can be carried away by thermal convection and transferred to the stationary heat sink 210, and finally discharged through the stationary heat sink 210, thereby achieving cooling of the rotating component 101 and / or the heating element, but the present invention is not limited thereto.

[0041] Specifically, the static heat sink 210 includes: a first side plate 2101, fixed to the end face of the housing 102 away from the first cavity 103; a top plate 2102, fixedly connected to the end of the first side plate 2101 away from the housing 102; the top plate 2102 and the first side plate 2101 form the inner cavity of the static heat sink 210, and the top plate 2102, the first side plate 2101 and the housing 102 form the second cavity. The dynamic heat sink 220 includes: a bottom plate 2201, fixedly connected to the rotating member 101; and the bottom plate 2201 rotates synchronously with the rotating member 101; a second side plate 2202, fixedly connected to the bottom plate 2201; the bottom plate 2201 and the second side plate 2202 form the inner cavity of the dynamic heat sink 220. Preferably, the inner cavity of the static heat sink 210 and the inner cavity of the dynamic heat sink 220 can both be cylindrical cavities; the first side plate 2101 and the top plate 2102 are integrally formed, and the bottom plate 2201 and the second side plate 2202 are integrally formed, but the present invention is not limited thereto.

[0042] In this embodiment, the circulation channel can be formed by the inner cavity of the stationary heat sink 210 and the inner cavity of the moving heat sink 220. The first spiral groove 240 can be disposed on the outer wall of the second side plate 2202 of the moving heat sink 220. Since the stationary heat sink 210 is fixed to the housing 102 and does not rotate synchronously with the rotating member 101, a gap needs to be left between the inner wall of the stationary heat sink 210 and the outer wall of the moving heat sink 220, i.e., between the first side plate 2101 and the second side plate 2202, so that the moving heat sink 220 does not scrape against the stationary heat sink 210 when it rotates at high speed with the rotating member 101. Preferably, both the stationary heat sink 210 and the moving heat sink 220 are made of materials with good thermal conductivity; the air pressure in the first cavity 103 is lower than the air pressure outside the housing 102; and the thermal conductivity of the gas is greater than that of air.

[0043] Please also refer to Figure 1 and Figure 8 The cooling device further includes: a plurality of ventilation channels 230; each ventilation channel 230 penetrates the housing 102 and is used to connect the first cavity 103 and the second cavity; and the connected first cavity 103 and the second cavity form a sealed cavity.

[0044] Specifically, in this embodiment, when the moving heat sink 220 rotates synchronously with the rotating component 101, the first spiral pump can pump the gas in the first cavity 103 into the circulation channel through the vent 230. More specifically, after the gas is pumped into the circulation channel, the air pressure in the circulation channel can be increased and maintained within a certain range, thereby effectively increasing the convective heat transfer coefficient of the gas in the circulation channel. This allows the heat on the moving heat sink 220 to be quickly transferred to the stationary heat sink 210, thereby improving the heat dissipation efficiency of the cooling device. In addition, after the gas in the first cavity 103 is pumped into the circulation channel, the air pressure in the first cavity 103 can be further reduced, resulting in less wind resistance when the rotating component 101 rotates at high speed and less heat generated. However, this invention is not limited to this.

[0045] Please also refer to Figures 1 to 5 The cooling device further includes a guide device disposed within the circulation channel to form a guide path so that the gas within the circulation channel flows along the guide path.

[0046] It is understood that in some other embodiments, the guiding device includes: a first cooling baffle 261, located in the inner cavity of the static heat sink 210, and fixed in a spiral shape to the end face of the static heat sink 210 near the housing 102; and the gap of the first cooling baffle 261 forms a first cooling groove 2611; a second cooling baffle 262, located in the inner cavity of the dynamic heat sink 220, and fixed in a radial shape to the end face of the dynamic heat sink 220 away from the housing 102, and disposed opposite to the first cooling baffle 261; and the gap of the second cooling baffle 262 forms a second cooling groove 2621.

[0047] In some embodiments, a first common channel is formed between the outermost ring of the first cooling baffle 261 and the outermost ring of the second cooling baffle 262 and the inner sidewall of the second side plate of the dynamic heat sink 220; a second common channel is formed between the innermost ring of the first cooling baffle 261 and the innermost ring of the second cooling baffle 262; both the first common channel and the second common channel are connected to the first cooling tank 2611 and the second cooling tank 2621; and the first common channel, the first cooling tank 2611, the second common channel and the second cooling tank 2621 constitute the guide path.

[0048] Specifically, the first cooling baffle 261 is located between the top plate 2102 of the static heat sink 210 and the bottom plate 2201 of the dynamic heat sink 220, and is fixed in a spiral shape to the end face of the top plate 2102 near the housing 102. The second cooling baffle 262 is located between the first cooling baffle 261 and the bottom plate 2201 of the dynamic heat sink 220, and the second cooling baffle 262 may be composed of a plurality of arc-shaped blades; all the arc-shaped blades may be fixed radially to the end face of the bottom plate 2201 away from the housing 102. Preferably, the first cooling baffle 261 may be integrally formed with the static heat sink 210; the second cooling baffle 262 may be integrally formed with the dynamic heat sink 220, but the present invention is not limited thereto.

[0049] Specifically, such as Figure 2 As shown, the outermost ring of the first cooling baffle 261 can form a first outer cavity 2612, and the innermost ring of the first cooling baffle 261 can form a first inner cavity 2613; as Figure 5 As shown, the outermost ring of the second cooling baffle 262 can form a second outer cavity 2622, and the innermost ring of the second cooling baffle 262 can form a second inner cavity 2623. The first outer cavity 2612 and the second outer cavity 2622 can constitute the first common channel, and the first inner cavity 2613 and the second inner cavity 2623 can constitute the second common channel, but the present invention is not limited thereto.

[0050] In this embodiment, the outermost ring of the first cooling baffle 261 may have a plurality of first notches, and the innermost ring may have a plurality of second notches. The plurality of first notches increases the communication area between the first cooling tank 2611 and the first common channel, allowing gas flowing into the first common channel to quickly enter the first cooling tank 2611 through the plurality of first notches, and vice versa. Similarly, the plurality of second notches increases the communication area between the first cooling tank 2611 and the second common channel, allowing gas flowing into the first cooling tank 2611 to quickly enter the second common channel through the plurality of second notches, and vice versa.

[0051] In this embodiment, the radial arrangement of the second cooling baffle 262 effectively increases the communication area of ​​the second cooling tank 2621, the second common channel, and the first common channel. This allows the gas flowing into the second common channel to quickly enter the second cooling tank 2621 through diversion, and the gas flowing into the second cooling tank 2621 to also quickly enter the first common channel through diversion, and vice versa. Therefore, the radial arrangement of the first notch, the second notch, and the second cooling baffle 262 effectively increases the flow rate of the gas in the circulation channel, thereby improving the gas circulation efficiency and thus the heat dissipation efficiency of the cooling device, achieving rapid cooling of the rotating component 101 and / or the heat-generating component.

[0052] In other embodiments, the second cooling baffle 262 may also be fixed in a vortex shape on the end face of the base plate 2201 away from the housing 102, but the present invention is not limited thereto.

[0053] Please also refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 The guiding device further includes: an air-blocking device, located between the first cooling baffle 261 and the second cooling baffle 262, fixedly connected to the first cooling baffle 261 and / or the second cooling baffle 262, for preventing the opening of the first cooling tank 2611 toward the second cooling tank 2621 and / or the opening of the second cooling tank 2621 toward the first cooling tank 2611 from communicating, even if the first cooling tank 2611 and the second cooling tank 2621 are not directly connected.

[0054] Specifically, in this embodiment, the first cooling tank 2611 is vortex-shaped, and the second cooling tank 2621 is radial. When the first cooling tank 2611 and the second cooling tank 2621 are not directly connected, the gas entering the first cooling tank 2611 through the first common channel can only vortex forward to the second common channel. This effectively prolongs the gas's flow time within the first cooling tank 2611, allowing the gas to fully contact the static heat sink 210. This enables the gas to effectively transfer its heat to the static heat sink 210, which then discharges it to the outside. The gas entering the second cooling tank 2621 through the second common channel can be diverted to the first common channel, allowing for rapid flow within the second cooling tank 2621. This allows the gas to quickly remove heat from the dynamic heat sink 220, but the invention is not limited to this.

[0055] Specifically, the air-blocking device may include a first air-blocking component 263 and a second air-blocking component 264; wherein, the first air-blocking component 263 may be fixedly connected to the end of the first cooling baffle 261 near the housing 102, for sealing the opening of the first cooling tank 2611 toward the second cooling tank 2621; the second air-blocking component 264 may be fixedly connected to the end of the second cooling baffle 262 away from the housing 102, for sealing the opening of the second cooling tank 2621 toward the first cooling tank 2611, thereby preventing the first cooling tank 2611 and the second cooling tank 2621 from being directly connected, but the invention is not limited thereto.

[0056] More specifically, the first air-barrier assembly 263 may include a first air-barrier plate 2631, a first air-barrier ring 2632, and a third air-barrier ring 2633; wherein, the first air-barrier plate 2631 may be fixedly connected to one end of the first cooling baffle 261 near the housing 102; the first air-barrier ring 2632 is located in the second common channel, and its outer ring is fixedly connected to the inner ring of the first air-barrier plate; the third air-barrier ring 2633 is located between the outermost ring of the second cooling baffle 262 and the second side plate 2202 of the dynamic heat sink 220, and one end of its ring is fixedly connected to the outer ring of the first air-barrier plate 2631. Preferably, the first air-barrier plate 2631, the first air-barrier ring 2632, and the third air-barrier ring 2633 may be integrally formed, but the present invention is not limited thereto.

[0057] More specifically, the second air-barrier assembly 264 may include a second air-barrier plate 2641 and a second air-barrier ring 2642; wherein, the second air-barrier plate 2641 may be fixedly connected to the end of the second cooling baffle 262 away from the housing 102; the second air-barrier ring 2642 is located between the first air-barrier ring 2632 and the innermost ring of the second cooling baffle 262; one end of the second air-barrier ring 2642 may be fixedly connected to the inner ring of the second air-barrier plate 2641, and the inner ring of the second air-barrier ring 2642 may form a spiral seal with the outer ring of the first air-barrier ring 2632. Preferably, the second air-barrier plate 2641 and the second air-barrier ring 2642 may be integrally formed, but the present invention is not limited thereto.

[0058] In this embodiment, since the first air-blocking plate 2631 is fixed to the static heat dissipation plate 210 and the second air-blocking plate 2641 is fixed to the dynamic heat dissipation plate 220, a gap needs to be left between the first air-blocking plate 2631 and the second air-blocking plate 2641 so that the second air-blocking plate 2641 will not scrape against the first air-blocking plate 2631 when the dynamic heat dissipation plate 220 rotates at high speed with the rotating component 101. Preferably, the cross-sections of both the first air-blocking plate 2631 and the second air-blocking plate 2641 are annular.

[0059] In this embodiment, a third spiral groove 2634 may be machined on the outer wall of the first air-isolating ring 2632, so that a spiral seal can be formed between the first air-isolating ring 2632 and the second air-isolating ring 2642, thereby preventing the gas from entering the gap between the first air-isolating plate 2631 and the second air-isolating plate 2641 through the gap between the second air-isolating ring 2642 and the first air-isolating ring 2632, or preventing the gas from entering the second cooling tank 2621 or the second common channel through the gap between the second air-isolating ring 2642 and the first air-isolating ring 2632, thereby avoiding the formation of other guiding paths.

[0060] In this embodiment, a first gap is left between the end of the first air-barrier ring 2632 near the static heat sink 210 and the static heat sink 210, allowing gas to flow between the first cooling tank 2611 and the second common channel through the first gap. Similarly, a second gap is left between the ends of both the first air-barrier ring 2632 and the moving heat sink 220 near the moving heat sink 220, allowing gas flowing into the second common channel to enter the second cooling tank 2621 through the second gap. A third gap is also left between the end of the third air-barrier ring 2633 near the moving heat sink 220 and the moving heat sink 220, allowing gas flowing into the second cooling tank 2621 to enter the first common channel through the third gap.

[0061] Please also refer to Figure 1 , Figure 4 and Figure 5 The cooling device further includes: a second spiral groove 250 disposed on the inner side wall of the second side plate 2202 of the dynamic heat sink 220; the second spiral groove 250 cooperates with the air-blocking device fixed on the first cooling baffle 261 to form a second spiral pump, which is used to drive the gas to circulate in the circulation channel.

[0062] Specifically, the second spiral groove 250 can cooperate with the third air-isolating ring 2633 to form the second spiral pump; when the dynamic heat sink 220 rotates synchronously with the rotating member 101, the first spiral pump can pump the gas in the first cavity 103 into the first common channel, and the second spiral pump can control the flow direction of the gas.

[0063] More specifically, after the gas is pumped to the first common channel by the first spiral pump, the second spiral pump can drive the gas to circulate within the circulation channel along the path of the first common channel → first cooling tank 2611 → second common channel → second cooling tank 2621 → first common channel. Furthermore, the second spiral pump can increase the flow rate of the gas within the circulation channel, thereby improving the gas circulation efficiency and consequently the heat dissipation efficiency of the cooling device; however, this invention is not limited thereto.

[0064] In this embodiment, the first spiral groove 240, the second spiral groove 250 and the third spiral groove 2634 may be rectangular spiral grooves, triangular spiral grooves or trapezoidal spiral grooves, etc., but the present invention is not limited thereto.

[0065] In other embodiments, the cooling device may further include: a pump head disposed in the circulation channel, the pump head being fixedly connected to the end face of the dynamic heat sink 220 away from the housing 102; and the surface of the pump head being provided with a fourth spiral groove; the pump head can also drive the gas to circulate in the circulation channel.

[0066] In another embodiment, the cooling device may further include: a plurality of fan blades disposed in the circulation channel; the fan blades are fixed on the inner sidewall of the moving heat sink 220 and / or on the end face of the moving heat sink 220 away from the housing 102; and all the fan blades are arranged at intervals along the circumference of the moving heat sink 220; the fan blades can also drive the gas to circulate in the circulation channel.

[0067] Please continue to refer to this. Figure 1The cooling device further includes a coolant disposed on the end face of the static heat sink 210 away from the housing 102, for absorbing heat from the static heat sink 210.

[0068] Specifically, in this embodiment, an end cap 270 is provided on the outside of the static heat sink 210, and the end cap 270 is fixed to the end face of the static heat sink 210 away from the housing 102; the coolant can be disposed between the static heat sink 210 and the end cap 270 to improve the heat dissipation efficiency of the static heat sink 210, thereby improving the heat dissipation efficiency of the cooling device, but the present invention is not limited thereto.

[0069] On the other hand, combined with the appendix Figure 8 As shown, this embodiment also provides a ship roll-damping gyroscope, including: a shell 102 with a first cavity 103, a rotating member 101 located in the first cavity 103, and a cooling device as described above; and the rotating member 101 is rotatably connected to the shell 102; the first cavity 103 is filled with gas.

[0070] Specifically, in this embodiment, the rotating component 101 can be a gyroscope rotor; the number of cooling devices can be two, respectively disposed at both ends of the housing 102; and the two ends of the housing are respectively rotatably connected to the two ends of the rotating component 101, but the present invention is not limited thereto.

[0071] In summary, this embodiment provides a cooling device and a ship roll-damping gyroscope. A first spiral pump pumps gas from the first cavity into a circulation channel via a vent, allowing heat transferred from the rotating component and / or heat-generating parts to the moving heat sink via the gas, which is then discharged to the outside. In this embodiment, pumping the rarefied gas from the first cavity into the circulation channel increases and maintains the gas pressure within the circulation channel within a certain range, effectively increasing the convective heat transfer coefficient and thus improving the cooling device's heat dissipation efficiency. Simultaneously, pumping the gas from the first cavity into the circulation channel also reduces the gas pressure within the first cavity, resulting in less wind resistance during high-speed rotation of the rotating components. In this embodiment, a second spiral pump drives the gas to circulate within the circulation channel, controlling the gas flow direction and increasing the gas flow rate, thereby improving the gas circulation efficiency and ultimately enhancing the cooling device's heat dissipation efficiency.

[0072] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A cooling device for cooling a rotating member (101) and / or a heat generating component on the rotating member (101); the rotating member (101) is located in a first cavity (103) of a housing (102), and the rotating member (101) is rotationally connected with the housing (102); characterized in that, The cooling device comprises: a static heat sink (210) located outside the shell (102) and connected to the shell (102); a second cavity is formed between the static heat sink (210) and the shell (102), and the second cavity is in communication with the first cavity (103); a dynamic heat sink (220) located in the second cavity and connected to the rotating part (101); the dynamic heat sink (220) rotates synchronously with the rotating part (101), and the heat on the rotating part (101) and / or the heat generating component is transferred to the dynamic heat sink (220); and a first spiral groove (240) arranged on the outer side wall of the dynamic heat sink (220); the first spiral groove (240) cooperates with the static heat sink (210) to form a first spiral pump; a circulation channel is formed between the dynamic heat sink (220) and the static heat sink (210); the first spiral pump is used for pumping the gas in the first cavity (103) into the circulation channel, so that the heat on the dynamic heat sink (220) is transferred to the static heat sink (210) through the gas and discharged.

2. Cooling device according to claim 1, characterized in that Further comprising: a plurality of air passages (230); each air passage (230) penetrates the shell (102) to communicate the first cavity (103) and the second cavity.

3. The cooling device of claim 1, wherein Further comprising: a guide device arranged in the circulation channel to form a guide path, so that the gas in the circulation channel flows along the guide path.

4. Cooling device according to claim 3, characterized in that The guide device comprises: a first cooling partition (261) fixed in a spiral shape on the end face of the static heat sink (210) close to the shell (102); and the gap of the first cooling partition (261) forms a first cooling groove (2611); a second cooling partition (262) fixed in a radial shape on the end face of the dynamic heat sink (220) away from the shell (102) and arranged opposite to the first cooling partition (261); and the gap of the second cooling partition (262) forms a second cooling groove (2621).

5. The cooling device of claim 4, wherein: the outermost circle of the first cooling partition (261) and the outermost circle of the second cooling partition (262) form a first common channel with the inner side wall of the dynamic heat sink (220); the innermost circle of the first cooling partition (261) and the innermost circle of the second cooling partition (262) form a second common channel; the first common channel and the second common channel are in communication with the first cooling groove (2611) and the second cooling groove (2621); and the first common channel, the first cooling groove (2611), the second common channel and the second cooling groove (2621) constitute the guide path.

6. The cooling device of claim 4, wherein The guiding device further comprises an air isolation device, which is fixedly connected with the first cooling partition (261) and / or the second cooling partition (262) and is located between the first cooling partition (261) and the second cooling partition (262), so as to prevent the first cooling groove (2611) and the second cooling groove (2621) from being directly communicated.

7. Cooling device according to claim 6, characterized in that Further comprising: A second spiral groove (250) is arranged on the inner side wall of the dynamic heat dissipation disc (220); the second spiral groove (250) cooperates with the air isolation device fixed on the first cooling partition (261) to form a second spiral pump, which is used to drive the gas to flow in the circulation channel.

8. The cooling device of claim 1, wherein Further comprising: Cooling liquid is arranged on the end face of the static heat dissipation disc (210) away from the shell (102) and is used to absorb the heat on the static heat dissipation disc (210).

9. A ship stabilizing gyroscope, characterized by Comprising: The shell (102) is provided with a first cavity (103), a rotating part (101) is arranged in the first cavity (103), and the cooling device as claimed in any one of claims 1-8 is arranged; the rotating part (101) is rotationally connected with the shell (102); and the first cavity (103) is filled with gas.

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