Heat dissipation device and bearing assembly

Abstract

This invention provides a heat dissipation device, comprising: a body having a cylindrical shape, and a Peltier assembly arranged circumferentially around the body, wherein the side of the Peltier assembly closest to the object to be cooled is capable of cooling to transfer heat from the object in the radial direction. This invention also provides a bearing assembly for the heat dissipation device. The heat dissipation device according to this invention not only achieves efficient and rapid cooling for the object to be cooled, but also allows for real-time and remote monitoring of the temperature state of the object.

Description

Technical Field

[0001] This field relates to a heat dissipation device and a bearing assembly. Background Technology

[0002] Rotating components (such as bearings and shafts supporting bearings) are commonly used in various types of machinery. Because rotating components inevitably generate frictional heat during operation, or due to other reasons, their temperature may rise. This is particularly true in fields such as power generation equipment, metallurgical machinery, automobiles, and aerospace, where there are extremely high requirements for the stable operation of rotating components like bearings. Excessive heat can severely affect the operation and lifespan of bearings.

[0003] Therefore, the art desires timely and effective cooling for rotating components such as bearings. Utility Model Content

[0004] In response to the problems and needs mentioned above, this disclosure proposes a novel technical solution that solves the aforementioned problems and brings about other technical effects by adopting the following technical features.

[0005] This utility model provides a heat dissipation device, including: a body having a cylindrical shape and having a Peltier assembly arranged on the body in a circumferential manner, wherein the side of the Peltier assembly near the object to be cooled is capable of cooling to transfer heat from the object to be cooled in a radial direction.

[0006] According to one aspect, the heat dissipation device includes: a cylindrical body that can be inserted into a hollow shaft serving as the object to be cooled, and having a heat dissipation opening at a first end of the cylindrical body, wherein the inner side of the cylindrical body has a heat dissipation space communicating with the heat dissipation opening of the cylindrical body, wherein the side of the Peltier assembly near the hollow shaft is capable of cooling to transfer heat from the hollow shaft outward through the heat dissipation space and the heat dissipation opening.

[0007] Preferably, the heat dissipation device further includes a temperature control module disposed at the second end of the cylindrical body, and the temperature control module includes: a temperature sensor for sensing the temperature of the hollow shaft; preferably, the temperature sensor protrudes from the cylindrical body to measure the temperature of the inner wall of the hollow shaft; and a controller electrically connected to the temperature sensor and the Peltier assembly, and the controller controls the cooling power of the Peltier assembly according to the temperature sensed by the temperature sensor.

[0008] Preferably, the temperature control module further includes a wireless data transmitter, which is communicatively connected to the temperature sensor to send the sensed temperature data to an external data receiving device.

[0009] Preferably, the temperature control module further includes a wireless data receiver, which receives control signals from an external control device and sends the control signals to the controller.

[0010] Preferably, the temperature control module is encapsulated with epoxy fiberglass.

[0011] Preferably, the temperature control module further includes a fan configured to blow air toward the heat dissipation space to cause hot air in the heat dissipation space to flow toward the heat dissipation opening; preferably, the controller is also configured to control the fan.

[0012] Preferably, the Peltier assembly includes: a plurality of outer conductors; a plurality of N-type semiconductors; a plurality of inner conductors; and a plurality of P-type semiconductors; wherein the plurality of outer conductors are arranged around the plurality of inner conductors, and the plurality of N-type semiconductors and the plurality of P-type semiconductors are alternately arranged between the plurality of outer conductors and the plurality of inner conductors and are connected in series through a corresponding inner conductor and a corresponding outer conductor.

[0013] Preferably, each outer conductor and each inner conductor are formed as a partially cylindrical conductor strip and extend along the longitudinal length of the cylindrical body, such that the Peltier assembly is formed as a cylindrical assembly.

[0014] Preferably, the cylindrical Peltier assembly further includes: an outer insulating layer covering the outer periphery of the plurality of outer conductors; and an inner insulating layer covering the inner periphery of the plurality of inner conductors.

[0015] Preferably, the heat dissipation device further includes: a heat-conducting sleeve, sleeved on the outer insulation layer of the cylindrical Peltier assembly, and the temperature control module is also disposed in the heat-conducting sleeve; preferably, the heat-conducting sleeve is a steel sleeve; preferably, the outer side of the heat-conducting sleeve is coated with thermal conductive paste or thermal conductive adhesive; and / or the cylindrical body further includes: a heat dissipation element, disposed on the inner insulation layer of the cylindrical Peltier assembly and extending toward the heat dissipation space; preferably, thermal conductive paste or thermal conductive adhesive is further disposed between the heat dissipation element and the inner insulation layer.

[0016] Preferably, the heat dissipation device further includes an end cap disposed at the first end of the cylindrical body and having a central opening, and the end cap is fixedly connected to the heat-conducting sleeve and can be fixedly connected to the end of the hollow shaft.

[0017] Preferably, a gasket is provided between the edge of the central opening of the end cap and the end edge of the Peltier assembly.

[0018] According to another aspect, the heat dissipation device includes: an annular body that can be fitted onto a bearing retainer ring, which is the object to be cooled, wherein one or more Peltier components are disposed on the annular body, and the side of the one or more Peltier components near the bearing retainer ring is capable of cooling to transfer heat from the bearing and the bearing retainer ring outward in the radial direction of the annular body.

[0019] Preferably, each Peltier assembly also has a temperature control module, which includes a controller for controlling the cooling power of each Peltier assembly.

[0020] Preferably, the heat dissipation device further includes one or more temperature sensors, each of which is communicatively connected to the controller of a corresponding Peltier component.

[0021] Preferably, the temperature control module further includes a wireless data transmitter, which is communicatively connected to the temperature sensor to send the sensed temperature data to an external data receiving device.

[0022] Preferably, the temperature control module further includes a wireless data receiver, which receives control signals from an external control device and sends the control signals to the controller.

[0023] Preferably, the temperature control module is encapsulated with epoxy fiberglass.

[0024] Preferably, each Peltier assembly and each temperature sensor is disposed in a corresponding mounting slot on the annular body.

[0025] Preferably, the annular body is formed of a thermally conductive material.

[0026] This utility model also provides a bearing assembly, including the heat dissipation device as described above.

[0027] The heat dissipation device according to this utility model can not only achieve efficient and rapid cooling for the object to be cooled, but also perform real-time and remote monitoring based on the temperature status of the object. Attached Figure Description

[0028] Figure 1 This is a perspective view of a heat dissipation device for insertion into a hollow shaft according to a preferred embodiment of the present invention;

[0029] Figure 2 yes Figure 1 A cross-sectional view of the heat dissipation device in the embodiment shown;

[0030] Figure 3 yes Figure 1 A schematic diagram of the Peltier assembly in the heat dissipation device of the illustrated embodiment;

[0031] Figure 4 yes Figure 1 The schematic diagram of the heat dissipation device in the illustrated embodiment has the heat-conducting sleeve removed.

[0032] Figure 5 yes Figure 1 A schematic diagram of the temperature control module of the heat dissipation device in the illustrated embodiment;

[0033] Figure 6 yes Figure 1 A schematic diagram illustrating the working principle of the heat dissipation device in the illustrated embodiment;

[0034] Figure 7 This is a schematic diagram of a heat dissipation device according to another preferred embodiment of the present invention;

[0035] Figure 8 yes Figure 7 The heat dissipation principle diagram of the embodiment shown. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0037] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this disclosure may have fewer components, other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0038] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by those skilled in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Where the number of components is not specified, the number of components may be one or more; similarly, terms such as “a,” “the,” and “described” do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “install,” “set,” “connect,” or “link” are not limited to physical or mechanical installation, setting, or connection, but may include electrical installation, setting, or connection, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate the relative positional relationship of the equipment during use or as shown in the accompanying drawings; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] This invention provides a heat dissipation device comprising: a body having a cylindrical shape, and a Peltier assembly arranged circumferentially around the body, wherein the side of the Peltier assembly closest to the object to be cooled is capable of cooling to transfer heat from the object in a radial direction. In other words, this invention provides a heat dissipation device capable of circumferentially surrounding the object to achieve radial heat dissipation.

[0040] It should be understood that the cylindrical body (e.g., in the form of a tubular body and annular body as described below) has an axial direction, a radial direction, and a circumferential direction. Furthermore, in the embodiments described below, the axial, radial, and circumferential directions of the body also coincide with the axial, radial, and circumferential directions of the bearing itself.

[0041] It should also be understood that "circumferential arrangement around the body" includes both circumferential arrangement inside the body and circumferential arrangement outside the body.

[0042] The following description, with reference to the accompanying drawings, describes a heat dissipation device according to some preferred embodiments of the present invention. It should be understood that after understanding the basic principles and structure of the heat dissipation device according to the preferred embodiments of the present invention, those skilled in the art can make some modifications and variations, but these modifications still fall within the scope of the present invention.

[0043] According to one aspect of this utility model, a heat dissipation device suitable for dissipating heat from a hollow shaft and the bearings thereon is provided. The hollow shaft is the object to be cooled.

[0044] Hollow shafts are typically cylindrical in shape and are made of metal, for example. Bearings can be fitted onto the hollow shaft. During bearing operation, some of the heat generated by the bearing is transferred to the hollow shaft.

[0045] Therefore, this utility model provides a heat dissipation device (such as) for insertion into a hollow shaft. Figure 1 As shown, it includes a cylindrical body that can be almost entirely inserted into a hollow shaft, which effectively provides a way to arrange a heat dissipation device around the inside of a heat-dissipating object.

[0046] Furthermore, the cylindrical body has a Peltier assembly 1 for receiving heat from the hollow shaft and a heat dissipation opening 100 at the first end of the cylindrical body, see [link to relevant documentation]. Figure 1-2 The inner side of the cylindrical body (or the inner side of the Peltier assembly 1) also has a heat dissipation space 10, which is connected to the heat dissipation opening 100 of the cylindrical body. Furthermore, the side of the Peltier assembly 1 near the hollow shaft can be cooled to transfer heat from the hollow shaft outward through the heat dissipation space 10 and the heat dissipation opening 100. It should be understood that the heat dissipation device may include any suitable form of substrate for fixing and protecting the Peltier assembly 1.

[0047] Since the hollow shaft itself can also conduct heat, the bearing will also be cooled by the hollow shaft after it has been cooled by the heat dissipation device, thus achieving indirect heat dissipation for the bearing. This heat dissipation device of the present invention makes full use of the internal space of the hollow shaft to house the heat dissipation device, thereby not occupying additional space and not damaging the appearance of the bearing, hollow shaft, and related instruments. It should be understood that the hollow shaft can be a rotating shaft or a fixed shaft. The heat dissipation device inserted into the hollow shaft can achieve full contact with the inner wall of the hollow shaft in any suitable manner. For example, the heat dissipation device can be slightly interference-fitted into the hollow shaft, or full thermal contact with the inner wall of the hollow shaft can be achieved through a suitable thermally conductive adhesive or thermal paste.

[0048] Furthermore, the Peltier assembly is a device capable of achieving rapid and efficient cooling, and its heat dissipation timing and time can be flexibly adjusted. According to the inventors' tests, for a typical hollow shaft with a bearing, the heat dissipation assembly according to this invention can achieve a cooling temperature as low as -40°C. Additionally, the Peltier assembly 1 can have any suitable form, such as an array of one Peltier element continuously bonded or embedded in a cylindrical body, or an array of multiple Peltier elements discretely bonded or embedded in a cylindrical body.

[0049] Preferably, such as Figure 2 , 4As shown in Figure 5, the heat dissipation device may also include a temperature control module 2, which is disposed at the second end of the cylindrical body (the second end being opposite to the first end). For example, the temperature control module 2 may be disposed adjacent to the Peltier assembly 1 and connected to the Peltier assembly 1 by any suitable means (e.g., adhesive bonding).

[0050] Furthermore, the temperature control module 2 may include a temperature sensor 21 and a controller 22.

[0051] Temperature sensor 21 can be used to sense the temperature of the hollow shaft. Preferably, temperature sensor 21 protrudes from the cylindrical body to measure the temperature of the inner wall of the hollow shaft, such as... Figure 2 As shown. Temperature sensor 21 is, for example, a contact temperature sensor or a non-contact temperature sensor.

[0052] Furthermore, the controller 22 can be electrically connected to the temperature sensor 21 and the Peltier assembly 1, thereby controlling the cooling power of the Peltier assembly 1 based on the temperature sensed by the temperature sensor 21. For example, the controller 22 can set an upper temperature limit; when the temperature value sensed by the temperature sensor 21 reaches or exceeds this upper temperature limit, the cooling function of the Peltier assembly 1 is activated. Alternatively, the controller 22 can also set a lower temperature limit; when the temperature value sensed by the temperature sensor 21 reaches or falls below this lower temperature limit, the cooling function of the Peltier assembly 1 is deactivated. As another example, the controller 22 can also control the cooling time and cooling frequency of the Peltier assembly 1.

[0053] Preferably, the temperature control module 2 may further include a wireless data transmitter, which is communicatively connected to the temperature sensor 21 to transmit the sensed temperature data to an external data receiving device. More preferably, the temperature control module 2 may further include a wireless data receiver, which receives control signals from an external control device and transmits the control signals to the controller 22.

[0054] It should be understood that the wireless data transmitter and receiver can be separate devices or integrated into a single device with transceiver capabilities. Furthermore, the external data receiving device and external control device can be separate devices or a single device possessing all the functions of both, such as a user's mobile phone. This allows the user to more flexibly monitor the temperature of the hollow shaft at any time, thereby identifying bearing problems and adjusting the cooling system's operation based on temperature readings. Moreover, the temperature data obtained from the temperature control module 2 can be stored for subsequent bearing condition analysis, etc.

[0055] Preferably, the temperature control module 2 can be encapsulated with epoxy fiberglass. Epoxy fiberglass is a good thermal insulation material, and also has good rigidity, so as to better protect the various components inside the temperature control module 2.

[0056] More preferably, the temperature control module 2 may also include a fan 23, such as Figure 2 and 5 As shown. Fan 23 is configured to blow air toward the heat dissipation space 10 to cause hot air in the heat dissipation space 10 to flow toward the heat dissipation opening 100. Preferably, controller 22 can also be configured to control fan 23, for example, to control the on / off timing, running time, and operating power of fan 23 based on the temperature sensed by temperature sensor 21.

[0057] To adapt to the structural characteristics of the heat dissipation device of this utility model, a novel Peltier assembly structure is also proposed. Specifically, the Peltier assembly 1 includes: multiple outer conductors 11, multiple N-type semiconductors 12, multiple inner conductors 13, and multiple P-type semiconductors 14. Furthermore, the multiple outer conductors 11 are arranged around the multiple inner conductors 13, and the multiple N-type semiconductors 12 and multiple P-type semiconductors 14 are alternately arranged between the multiple outer conductors 11 and the multiple inner conductors 13 and connected in series with the corresponding inner conductor 13 and the corresponding outer conductor 11. The Peltier assembly 11 can also be connected to a DC power supply 24, such as a rechargeable battery, encapsulated in the temperature control module 2. The DC power supply 24 can also power electronic devices such as sensors and controllers as described above.

[0058] More preferably, each outer conductor 11 and each inner conductor 13 are formed as partially cylindrical conductor strips and extend along the longitudinal length of the cylindrical body, such that the Peltier assembly 1 is also formed as a cylindrical assembly. Figure 3 The left-hand view shows the cylindrical Peltier assembly 1, and the right-hand view exaggerates the cross-section of this cylindrical Peltier assembly 1, showing the shape and connection method of the conductor layer and the semiconductor. According to the inventors' tests, this cylindrical Peltier assembly better conforms to the shape of the cylindrical body of the heat dissipation device, has a better fit within the cylindrical body, achieves a larger heat dissipation area, and thus achieves a better heat dissipation effect.

[0059] Furthermore, the cylindrical Peltier assembly 1 may also include: an outer insulating layer 15 covering the outer periphery of a plurality of outer conductors 11; and an inner insulating layer 16 covering the inner periphery of a plurality of inner conductors 13. Moreover, the outer insulating layer 15 and the inner insulating layer 16 may be made of a ceramic material having thermal conductivity and electrical insulation properties.

[0060] Preferably, the heat dissipation device may further include a heat-conducting sleeve 17 (such as...). Figure 1 and 2As shown, the heat-conducting sleeve 17 is fitted onto the outer insulation layer 15 of the cylindrical Peltier assembly 1, allowing it to directly contact the inner wall of the hollow shaft. The heat-conducting sleeve 17 not only provides protection for the cylindrical Peltier assembly 1 but also effectively transfers heat from the hollow shaft to the cylindrical Peltier assembly 1. Furthermore, the temperature control module 2 can also be housed within the heat-conducting sleeve 17. Preferably, the heat-conducting sleeve 17 is made of steel. More preferably, the outer side of the heat-conducting sleeve 17 can be coated with thermal paste or thermal adhesive to better facilitate heat transfer from the hollow shaft to the heat-conducting sleeve 17.

[0061] Preferably, the cylindrical body may further include a heat dissipation element 18 (such as...) Figure 2 and 3 As shown), it is disposed on the inner insulating layer 16 of the cylindrical Peltier assembly 1 and extends toward the heat dissipation space 10. The heat dissipation element 18 can take any suitable form and structure; for example, the heat dissipation element 18 can be a heat dissipation fin, heat dissipation protrusion, etc., formed of a thermally conductive material. Preferably, a thermally conductive paste or thermally conductive adhesive 19 (such as...) is also disposed between the heat dissipation element 18 and the inner insulating layer 16. Figure 3 (As shown).

[0062] Preferably, the heat dissipation device according to the present invention may further include an end cap 3 disposed at the first end of the cylindrical body and having a central opening. The end cap 3 is fixedly connected to the heat-conducting sleeve 17 (e.g., by bolts) and can be fixedly connected to the end of the hollow shaft (e.g., by bolts, and the end cap 3 may include countersunk holes for bolts).

[0063] Preferably, a gasket 4 is provided between the edge of the central opening of the end cap 3 and the end edge of the Peltier assembly 1.

[0064] Figure 6 A schematic diagram illustrating the working principle of the aforementioned heat dissipation device according to this utility model is shown. This heat dissipation device not only provides efficient and rapid cooling for the hollow shaft and its bearings, but also enables real-time and remote monitoring of the temperature status of the hollow shaft and bearings.

[0065] According to another aspect of this invention, a heat dissipation device capable of functioning for a double-row bearing is also provided. Specifically, the double-row bearing typically includes a retaining ring disposed between opposing races, which restricts bearing displacement and serves to axially position and stabilize the bearing structure.

[0066] Based on the heat dissipation principle of the aforementioned heat dissipation device, this utility model proposes a heat dissipation device for fitting onto such a bearing retaining ring. Figure 7 A heat dissipation device according to this preferred embodiment is shown.

[0067] The heat dissipation device includes: an annular body 5; and one or more Peltier assemblies 6 disposed on the annular body 5, wherein the side of the one or more Peltier assemblies 6 near the hollow shaft is capable of cooling to transfer heat from the bearing and bearing retaining ring outward in the radial direction of the annular body 5. That is, the heat dissipation device can transfer heat to the environment surrounding the bearing in a radially outward direction. It should be understood that the Peltier assemblies 6 can be disposed within mounting grooves on the annular body 5. When multiple Peltier assemblies 6 are present, these Peltier assemblies 6 can be uniformly arranged axially at equal angular distances. Figure 7 Four Peltier components 6 are shown.

[0068] Figure 8 A schematic diagram illustrating the heat dissipation principle of this preferred embodiment is shown. When the heat dissipation device is applied to the bearing retainer ring, it can also come into contact with the lubricant in the bearing, thereby allowing heat from the lubricant to be dissipated through the heat dissipation device.

[0069] More preferably, in the heat dissipation device, each Peltier assembly 6 also has a temperature control module 7, which may include a controller 70 for controlling the cooling power of each Peltier assembly 6.

[0070] Preferably, the heat dissipation device may further include one or more temperature sensors 8, each of which is communicatively connected to the controller 70 of a corresponding Peltier assembly 6. Preferably, each temperature sensor 8 is disposed in a mounting slot on the annular body 5. Figure 7 Four temperature sensors are shown.

[0071] Preferably, the temperature control module 7 further includes a wireless data transmitter, which is communicatively connected to the temperature sensor 8 to send the sensed temperature data to an external data receiving device.

[0072] Preferably, the temperature control module 7 further includes a wireless data receiver, which receives control signals from an external control device and sends the control signals to the controller 70.

[0073] Preferably, the temperature control module 7 is encapsulated with epoxy fiberglass.

[0074] Preferably, the annular body 5 is formed of a thermally conductive material, such as steel.

[0075] According to one aspect of the present invention, the present invention also provides a bearing assembly, which includes the heat dissipation device as described above.

[0076] The exemplary embodiments of this disclosure have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A heat dissipating device, characterized by, include: The body has a cylindrical shape and includes Peltier components arranged circumferentially around it. The Peltier assembly has a cooling capability on the side closest to the object to be cooled, so as to transfer heat from the object in the radial direction.

2. The heat dissipating device of claim 1, wherein include: A cylindrical body that can be inserted into a hollow shaft serving as the object to be cooled, and has a heat dissipation opening (100) at a first end of the cylindrical body. The inner side of the cylindrical body has a heat dissipation space (10), and the heat dissipation space (10) is connected to the heat dissipation opening (100) of the cylindrical body. The Peltier assembly (1) is capable of cooling on the side near the hollow shaft to transfer heat from the hollow shaft to the outside through the heat dissipation space (10) and the heat dissipation opening (100).

3. The heat dissipating device of claim 2, wherein It also includes a temperature control module (2), which is disposed at the second end of the cylindrical body, and the temperature control module (2) includes: Temperature sensor (21) is used to sense the temperature of the hollow shaft; The controller (22) is electrically connected to the temperature sensor (21) and the Peltier assembly (1), and the controller (22) controls the cooling power of the Peltier assembly (1) according to the temperature sensed by the temperature sensor (21).

4. The heat dissipating device of claim 3, wherein The temperature sensor (21) protrudes from the cylindrical body to measure the temperature of the inner wall of the hollow shaft.

5. The heat dissipating device of claim 3, wherein The temperature control module (2) also includes a wireless data transmitter, which is communicatively connected to the temperature sensor (21) to send the sensed temperature data to an external data receiving device.

6. The heat dissipating device of claim 3, wherein The temperature control module (2) also includes a wireless data receiver, which receives control signals from an external control device and sends the control signals to the controller (22).

7. The heat dissipating device of claim 3, wherein The temperature control module (2) is encapsulated with epoxy glass fiber.

8. The heat dissipation device as described in claim 3, characterized in that, The temperature control module (2) also includes a fan (23) configured to blow air toward the heat dissipation space (10) to cause hot air in the heat dissipation space (10) to flow toward the heat dissipation opening (100).

9. The heat dissipating device of claim 8, wherein, The controller (22) is also configured to control the fan (23).

10. The heat dissipating device according to any one of claims 3 to 9, wherein The Peltier assembly (1) includes: Multiple outer conductors (11); Multiple N-type semiconductors (12); Multiple inner conductors (13); Multiple P-type semiconductors (14); The plurality of outer conductors (11) are arranged around the plurality of inner conductors (13), and the plurality of N-type semiconductors (12) and the plurality of P-type semiconductors (14) are arranged alternately between the plurality of outer conductors (11) and the plurality of inner conductors (13) and are connected in series with the corresponding inner conductors (13) and the corresponding outer conductors (11).

11. The heat dissipating device of claim 10, wherein Each outer conductor (11) and each inner conductor (13) are formed as partially cylindrical conductor strips and extend along the longitudinal length of the cylindrical body, such that the Peltier assembly (1) is formed as a cylindrical assembly.

12. The heat dissipating device of claim 11, wherein, The cylindrical Peltier assembly (1) also includes: An outer insulating layer (15) covers the outer periphery of the plurality of outer conductors (11); and An inner insulating layer (16) covers the inner periphery of the plurality of inner conductors (13).

13. The heat dissipating device of claim 12, wherein, The heat dissipation device also includes: A heat-conducting sleeve (17) is fitted on the outer insulation layer (15) of the cylindrical Peltier assembly (1), and the temperature control module (2) is also located in the heat-conducting sleeve (17).

14. The heat dissipating device of claim 13, wherein, The heat-conducting sleeve (17) is a steel sleeve.

15. The heat dissipating device of claim 13, wherein the plurality of fins are arranged in a plurality of rows, and the plurality of rows are arranged in a plurality of columns. The outer side of the heat-conducting sleeve (17) is coated with heat-conducting paste or heat-conducting adhesive.

16. The heat dissipating device of claim 12, wherein, The cylindrical body also includes: A heat dissipation element (18) is disposed on the inner insulating layer (16) of the cylindrical Peltier assembly (1) and extends toward the heat dissipation space (10).

17. The heat dissipation device as described in claim 16, characterized in that, A thermally conductive paste or thermally conductive adhesive (19) is also provided between the heat dissipation element (18) and the inner insulation layer (16).

18. The heat dissipating device of claim 13, wherein, It also includes an end cap (3) disposed at the first end of the cylindrical body and having a central opening, and the end cap (3) is fixedly connected to the heat-conducting sleeve (17) and can be fixedly connected to the end of the hollow shaft.

19. The heat dissipating device of claim 18, wherein, A gasket (4) is provided between the edge of the central opening of the end cap (3) and the end edge of the Peltier assembly (1).

20. The heat dissipating device of claim 1, wherein, include: The annular body (5) can be fitted onto the bearing retaining ring, which is the object to be cooled. One or more Peltier components are disposed on the annular body (5), and the side of the one or more Peltier components near the bearing retainer ring is capable of cooling to transfer heat from the bearing and bearing retainer ring outward along the radial direction of the annular body (5).

21. The heat dissipation device as described in claim 20, characterized in that, Each Peltier assembly also has a temperature control module, which includes a controller for controlling the cooling power of each Peltier assembly.

22. The heat dissipating device of claim 21, wherein, The heat dissipation device also includes one or more temperature sensors, each of which is communicatively connected to the controller of a corresponding Peltier component.

23. The heat dissipating device of claim 21, wherein the heat dissipating device is a heat sink. The temperature control module also includes a wireless data transmitter, which is communicatively connected to the one or more temperature sensors to send the sensed temperature data to an external data receiving device.

24. The heat dissipating device of claim 21, wherein, The temperature control module also includes a wireless data receiver, which receives control signals from an external control device and sends the control signals to the controller.

25. The heat dissipation device as described in claim 21, characterized in that, The temperature control module is encapsulated with epoxy fiberglass.

26. The heat dissipating device of claim 21, wherein, Each Peltier assembly and each temperature sensor is positioned within a corresponding mounting slot on the annular body (5).

27. The heat dissipating device of claim 21, wherein, The annular body (5) is formed by a thermally conductive material.

28. A bearing assembly characterized by, Includes the heat dissipation device as described in any one of claims 1-27.

Images