A water-cooled heat sink

Abstract

The utility model is suitable for electronic product water cooling heat dissipation technical field, disclose a water cooling heat dissipation device, including pump body subassembly and base subassembly, pump body subassembly includes stator, bearing seat, rotor and impeller, base subassembly includes seat body, baffle and heat conduction board, stator is connected with bearing seat, stator and rotor clearance fit, rotor and impeller coaxial arrangement and are connected with impeller, impeller and bearing seat swing joint, bearing seat is connected with seat body, baffle sets up between seat body and heat conduction board, baffle is connected with heat conduction board, seat body respectively, and the accommodating groove is seted up on seat body, and the impeller is accommodated in accommodating groove, the water inlet and a water outlet are seted up on seat body, accommodating groove is linked with water inlet and accommodating groove is linked with water outlet, heat conduction board is connected with seat body, the flow channel is seted up on heat conduction board, and a plurality of radiating fins are arranged on heat conduction board, the utility model avoids the water cooling liquid backflow to the impeller inner chamber through the adjustment water cooling pump body and the setting of heat conduction board and the design inside flow channel.

Description

Technical Field

[0001] This utility model relates to the field of water cooling technology for electronic products, and specifically to a water cooling device. Background Technology

[0002] Water-cooled heat dissipation devices typically include a pump body and a heat conduction plate. They utilize the large specific heat capacity of water coolant to exchange heat with the heat-generating elements, thereby reducing the temperature of the heat-generating elements. The water coolant temperature is then further reduced at the external radiator, thus circulating heat dissipation to achieve the purpose of cooling the heat-generating elements.

[0003] Existing patent CN213273374U discloses an integrated water-cooling heat dissipation device, including a pump body, a pump cover, a pump module, a guide plate, and a water-cooling head. The pump body is an integrally formed shell, which has a first cavity, a second cavity, and an insulating space. The pump cover is attached to the shell and covers the first cavity, and has a stator space and a cylindrical column, the cylindrical column having a rotor space communicating with the first cavity. The pump module includes a stator assembly disposed in the stator space, a rotor assembly disposed in the rotor space, and an impeller assembly disposed in the first cavity. The guide plate is attached to the second cavity and has a heat exchange chamber. The water-cooling head includes a base plate and a plurality of fins, the base plate covering the heat exchange chamber, and the fins disposed on the base plate and arranged parallel to each other in the heat exchange chamber; thereby preventing heat from being conducted from the water-cooling head to the pump module, thus maintaining the normal operation of the pump module.

[0004] However, the aforementioned patents still have the following drawbacks:

[0005] Because it lacks a protective design for the pump module, when the coolant flows through the integrated water-cooling heat dissipation device, the coolant can easily seep into the impeller cavity of the water-cooled pump body, affecting the pressure of the water-cooled pump body and the flow rate of the coolant.

[0006] Meanwhile, because the aforementioned integrated water cooling device is a one-piece design, it is difficult for staff to repair it when it malfunctions; and it is also difficult to be compatible with components of different specifications. Utility Model Content

[0007] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a water-cooled heat dissipation device. By adjusting the setting of the water-cooled pump body and the heat conduction plate, as well as the design of the internal flow channel, it can be adapted to the assembly of small-volume chassis, prevent water coolant leakage, and prevent water coolant from entering the impeller cavity and affecting the pressure of the pump body components and the flow rate of the water coolant.

[0008] A water-cooled heat dissipation device includes a pump body assembly and a base assembly;

[0009] The pump body assembly includes a stator, a bearing, a rotor, and an impeller;

[0010] The base assembly includes a base body, a partition, and a heat-conducting plate;

[0011] The stator is connected to the bearing; the stator is clearance-fitted with the rotor; the rotor is coaxially arranged with and connected to the impeller; the impeller is rotatably connected to the bearing.

[0012] The support is connected to the base body; the partition is disposed between the base body and the heat-conducting plate; the partition is connected to the heat-conducting plate and the base body respectively; the base body has a receiving cavity, and the impeller is housed in the receiving cavity; the base body has a water inlet and a water outlet; the receiving cavity is connected to the water outlet;

[0013] The heat-conducting plate is connected to the base; a first flow channel is opened on the heat-conducting plate, and a plurality of heat dissipation fins are provided on the heat-conducting plate; a heat exchange channel is formed between two adjacent heat dissipation fins.

[0014] More specifically, in the above technical solution, the base assembly further includes a sealing ring, the inner side of the base body is adapted to the partition plate; a groove adapted to the sealing ring is formed on the top of the inner side of the base body, and the sealing ring is disposed in the groove; the side of the sealing ring away from the groove abuts against the partition plate.

[0015] More specifically, in the above technical solution, the partition plate has a first through hole along its thickness direction, one end of the first through hole is connected to the accommodating cavity, and the other end is connected to the heat-conducting plate. A return port is formed at the bottom of the partition plate corresponding to the first through hole. A first flange is formed at the bottom of the partition plate along the outer periphery of the return port, and the first flange extends away from the partition plate. A first notch is formed at the first flange corresponding to the first through hole. A second flow channel is formed on the outer periphery of the partition plate. The second flow channel is connected to the first flow channel. Coolant flows from the second flow channel to the first flow channel and from the first flow channel to the first through hole.

[0016] More specifically, in the above technical solution, the partition plate has a second through hole along its thickness direction. One end of the second through hole is connected to the water inlet, and the other end is connected to the heat-conducting plate. The second through hole is an elongated oval through hole. A second flange is formed on the bottom of the partition plate along the outer periphery of the second through hole. The second flange extends away from the partition plate. Second notches are formed on both sides of the partition plate, and a return channel is formed on the outer periphery of the second through hole. The return channel is connected to the first flow channel through the second notch and is connected to the accommodating cavity. Coolant flows from the second through hole to the heat exchange channel and from the heat exchange channel along the first flow channel to the return channel.

[0017] More specifically, in the above technical solution, the water-cooled heat dissipation device further includes a first sealing element; the first sealing element is disposed between the bearing and the seat body.

[0018] More specifically, in the above technical solution, the water-cooled heat dissipation device further includes a second sealing element; the second sealing element is disposed between the base and the partition.

[0019] More specifically, in the above technical solution, an installation groove is formed on the lower outer side of the seat, a fastener is installed on the installation groove, and an installation hole is opened at the end of the fastener.

[0020] More specifically, in the above technical solution, the water-cooled heat dissipation device also includes a housing; the housing is connected to the base.

[0021] More specifically, in the above technical solution, the water-cooled heat dissipation device further includes a bearing and a shaft core; the bearing and the shaft core are coaxially arranged with the rotor; the bearing is sleeved outside the shaft core; the bearing is arranged inside the rotor.

[0022] More specifically, in the above technical solution, the water-cooled heat dissipation device further includes a wear-resistant plate; the wear-resistant plate is sleeved on the shaft core and connected to the shaft core.

[0023] More specifically, in the above technical solution, the water-cooled heat dissipation device further includes a soft rubber pad; the soft rubber pad is disposed between the partition and the heat-conducting plate; the soft rubber pad has through holes to allow the partition and the heat-conducting plate to communicate.

[0024] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0025] This utility model, through the arrangement of a pump body assembly and a base assembly, the base assembly includes a partition. The design of the partition can prevent the coolant from flowing into the impeller cavity when it flows in the water-cooled heat dissipation device described in this utility model, thereby avoiding affecting the pressure of the pump body assembly and the flow rate of the coolant.

[0026] Meanwhile, the separate design of the pump body assembly and the base assembly facilitates maintenance by staff when the water-cooled heat dissipation device described in this utility model malfunctions; furthermore, the water-cooled heat dissipation device described in this utility model is compatible with components of different specifications, improving the adaptability of the product to various application scenarios. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is an exploded view of the water-cooled heat dissipation device of this utility model;

[0029] Figure 2 This is another exploded view of the water-cooled heat dissipation device of this utility model;

[0030] Figure 3 This is another exploded schematic diagram of the water-cooled heat dissipation device of this utility model;

[0031] Figure 4 This is a schematic diagram of one embodiment of the partition of this utility model;

[0032] Figure 5 This is a schematic diagram of another embodiment of the partition of this utility model;

[0033] Figure 6 This is a schematic diagram of the water cooling liquid flow direction according to one embodiment of this utility model;

[0034] Figure 7 This is a schematic diagram of the water cooling liquid flow direction according to another embodiment of this utility model.

[0035] In the picture:

[0036] 1-Pump body assembly, 11-Stator, 12-Bearing seat, 13-Rotor, 14-Impeller;

[0037] 2-Base assembly, 21-Base body, 211-Inlet, 212-Outlet, 22-Baffle, 221-First through hole, 222-Return port, 223-First flange, 224-Second flow channel, 225-Second through hole, 226-Second flange, 227-Return channel, 23-Heat conduction plate, 231-First flow channel, 24-Water nozzle, 25-Sealing ring;

[0038] 3-First seal;

[0039] 4-Second seal;

[0040] 5-Fastener, 51-Mounting hole;

[0041] 6-Shell;

[0042] 7-Bearings;

[0043] 8-shaft core;

[0044] 9-Abrasion-resistant sheet;

[0045] 10- Soft rubber pad. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0048] Furthermore, in the description of this utility model specification and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0050] Please see Figure 1 This utility model proposes a water-cooled heat dissipation device. The water-cooled heat dissipation device can be adapted to the assembly of small-volume chassis, avoid water coolant leakage, and prevent water coolant from entering the impeller 14 cavity and affecting the pressure of the pump body assembly 1 and the flow rate of water coolant, which is of great significance.

[0051] Specifically, the water-cooled heat dissipation device of this utility model includes a pump body assembly 1 and a base assembly 2;

[0052] Pump body assembly 1 includes stator 1, bearing 12, rotor 13 and impeller 14;

[0053] The base assembly 2 includes a base body 21, a partition 22, and a heat-conducting plate 23;

[0054] The stator 1 is connected to the bearing 12; the stator 1 is clearance-fitted with the rotor 13; the rotor 13 is coaxially arranged with and connected to the impeller 14; the impeller 14 is rotatably connected to the bearing 12.

[0055] The support 12 is connected to the base 21; the partition 22 is disposed between the base 21 and the heat-conducting plate 23; the partition 22 is connected to the heat-conducting plate 23 and the base 21 respectively; the base 21 has a receiving cavity, and the impeller 14 is housed in the receiving cavity; the base 21 has a water inlet 211 and a water outlet 212; the receiving cavity is connected to the water outlet 212.

[0056] The heat-conducting plate 23 is connected to the base 21; a first flow channel 231 is provided on the heat-conducting plate 23, and several heat dissipation fins are provided on the heat-conducting plate 23; a heat exchange channel is formed between two adjacent heat dissipation fins.

[0057] Specifically, the stator 1 is electrically connected to an AC motor; for example, the AC motor can be an asynchronous motor or a synchronous motor; after AC current is applied to the windings of the stator 1, a rotating magnetic field is generated inside the iron core of the stator 1 and in the space around it; thereby causing the rotor 13 to rotate; since the rotor 13 and the impeller 14 are coaxially arranged and connected; the rotation of the rotor 13 drives the impeller 14 to rotate, thereby pumping the water-cooled liquid to the outlet 212;

[0058] In one embodiment of the present invention, the support 12 has a rectangular base plate and a cylindrical platform. A receiving groove is formed in the cylindrical platform. The stator 1 is sleeved on the receiving groove. An installation hole 51 is also provided in the receiving groove. The rotor 13 is disposed in the installation hole 51 and is clearance-fitted with the installation hole 51 to provide space for the rotation of the rotor 13.

[0059] More specifically, the bearing 12 and the base 21 can be integrally formed or connected by conventional screws. In one embodiment of this application, the bearing 12 and the base 21 are connected by conventional screws. A connecting hole adapted to the screw is provided at the outer edge of the rectangular base plate of the bearing 12, and a corresponding blind hole is provided in the base 21. The screw passes through the connecting hole and the blind hole to connect the bearing 12 and the base 21. In another embodiment, the bearing 12 and the base 21 are integrally formed. Integral forming reduces assembly difficulty and, by reducing assembly structures and gaps, lowers the risk of coolant leakage.

[0060] More specifically, since the impeller 14 is housed in the receiving cavity and is used to pump the coolant to the radiator, the receiving cavity is connected to the outlet 212, and the coolant is pumped to the outlet 212 by the force generated by the rotation of the impeller 14.

[0061] In some embodiments, the heat-conducting plate 23 is connected to the base 21; for example, the heat-conducting plate 23 and the base 21 are locked together by conventional screws; in some embodiments, the partition 22 is not in direct contact with the heat-conducting plate 23, but is disposed inside the base 21, which is reasonable, and can be snapped into the base 21. When the heat-conducting plate 23 and the base 21 are locked together, the partition 22 is fixed relative to the heat-conducting plate 23.

[0062] The heat-conducting plate 23 is provided with several heat dissipation fins, and a heat exchange channel is formed between two adjacent heat dissipation fins. After the coolant enters the heat-conducting plate 23, it flows through the heat exchange channel and exchanges heat with the CPU to reduce the CPU temperature.

[0063] In some embodiments, a matching water nozzle 24 is provided at the positions of the water inlet 211 and the water outlet 212 to facilitate the installation of the coolant pipeline; and a sealing ring is provided at the connection between the water nozzle 24 and the water inlet 211; and a sealing ring is provided at the connection between the water nozzle 24 and the water outlet 212 to prevent coolant leakage.

[0064] This utility model, through the arrangement of pump body assembly 1 and base assembly 2, the base assembly 2 includes a partition 22. The design of the partition 22 can prevent the coolant from flowing into the impeller 14 cavity when it flows in the water cooling heat dissipation device described in this utility model, thereby avoiding affecting the pressure of pump body assembly 1 and the flow rate of coolant.

[0065] Meanwhile, the separate design of the pump body assembly 1 and the base assembly 2 facilitates maintenance by staff when the water-cooled heat dissipation device described in this utility model malfunctions; furthermore, the water-cooled heat dissipation device described in this utility model is compatible with components of different specifications, improving the adaptability of the product to various application scenarios.

[0066] Furthermore, since the partition 22 is located inside the base 21 after installation, and both the base 21 and the partition 22 are made of plastic, in order to ensure that the coolant does not leak out from the gap between the base 21 and the partition 22 after installation, the base assembly of the water-cooled heat dissipation device of this utility model also includes a sealing ring 25. The inner side of the base 21 is adapted to the partition 22; a groove adapted to the sealing ring 25 is formed on the top of the inner side of the base 21, and the sealing ring 25 is set in the groove; the side of the sealing ring 25 away from the groove abuts against the partition 22.

[0067] Specifically, the sealing ring 25 is annular, and a groove adapted to the sealing ring 25 is formed on the top of the inner side of the seat 21. It is understood that the minimum diameter of the sealing ring 25 should be greater than the maximum diameter of the accommodating cavity, and after the sealing ring 25 is installed, the side away from the groove abuts against the partition plate 22, thereby preventing coolant from leaking out from the gap between the seat 21 and the partition plate 22. For example, the sealing ring 25 can be made of silicone material. One side of the sealing ring 25 is connected to the groove, for example, by adhesive bonding; the other side of the sealing ring 25 abuts against the partition plate 22.

[0068] In one embodiment of this utility model, the depth of the groove can be less than the thickness of the sealing ring 25, so that part of the sealing ring 25 is exposed inside the seat 21, avoiding the sealing ring 25 from not being able to abut against the partition plate 22 due to the groove being too deep, thus affecting the effect of preventing water coolant from flowing back.

[0069] Furthermore, regarding the arrangement of the partition 22, the following embodiments exist:

[0070] Example 1

[0071] like Figure 1 and Figure 2 As shown; the partition 22 has a first through hole 221 along its thickness direction, one end of the first through hole 221 is connected to the accommodating cavity, and the other end is connected to the heat-conducting plate 23, and a return port 222 is formed at the bottom of the partition 22 corresponding to the first through hole 221; a first flange 223 is formed at the bottom of the partition 22 along the outer periphery of the return port 222, and the first flange 223 extends away from the partition 22; a first notch is formed at the first flange 223 corresponding to the first through hole 221; a second flow channel 224 is formed on the outer periphery of the partition 221; the second flow channel 224 is connected to the first flow channel 231; the coolant flows from the second flow channel 224 to the first flow channel 231, and from the first flow channel 231 to the first through hole 221.

[0072] Specifically, the flow direction of the coolant in this embodiment is as follows: Figure 4 As shown, the coolant enters the second flow channel 224 from the inlet 211. Since the second flow channel 224 is connected to the first flow channel 231, the coolant is guided by the second flow channel 224 into the first flow channel 231. Then, the coolant flows through the first flow channel 231 to the heat exchange channel between two adjacent heat dissipation fins for heat exchange. At the same time, the stator 1 is electrically connected to an AC motor, which generates a magnetic field, causing the rotor 13 to rotate and drive the impeller 14 to rotate, thereby guiding the coolant from the heat exchange channel through the first through hole 221 into the outlet 212. That is, the coolant flows from the first flow channel 231 on both sides of the heat-conducting plate 23 to the heat exchange channel and then into the first through hole 221 opened in the middle of the partition plate 22.

[0073] For example, such as Figure 1 and Figure 2 As shown, the first through hole 221 is a cylindrical through hole, and a serrated structure is formed on the inner side wall of the first through hole 221. The serrated structure can improve the reflux speed of the coolant and accelerate the circulation of the coolant.

[0074] In some embodiments, the bottom of the partition 22 of the first through hole 221 is provided with a return port 222 at the position corresponding to the first through hole 221. For example, the return port 222 is oblong. Compared with the circular design corresponding to the first through hole 221, the length of the oblong is greater than the diameter of the first through hole 221, which can better guide the return of the coolant and speed up the return of the coolant to the first through hole 221, thereby speeding up the circulation of the coolant.

[0075] More specifically, since the heat-conducting plate 23 has a first flow channel 231 and a heat exchange channel, and the second flow channel 224 of the baffle 22 is connected to the first flow channel 231, when the coolant is refluxed, some coolant may flow back along the first flow channel 231 to the second flow channel 224 and then enter the inner cavity of the impeller 14, affecting the flow rate of the coolant. In order to guide the coolant to flow in the predetermined direction and prevent the coolant from entering the inner cavity of the impeller 14, a first flange 223 is formed on the outer periphery of the return port 222. The first flange 223 extends away from the baffle 22. Since the coolant needs to enter the outlet 212 through the first through hole 221, a first notch is formed on the first flange 223 at the position corresponding to the first through hole 221.

[0076] The design of the first flange 223 and the first notch can guide the coolant to flow along the predetermined direction, preventing the coolant from flowing back along the first flow channel 231 to the second flow channel 224 and then into the impeller 14 cavity, thus affecting the flow rate of the coolant.

[0077] Example 2

[0078] like Figure 3 As shown, a second through hole 225 is provided at the top of the partition 22. One end of the second through hole 225 is connected to the water inlet 211, and the other end is connected to the heat conduction plate 23. The second through hole 225 is an elongated oval through hole. A second flange 226 is formed at the bottom of the partition 22 along the outer periphery of the second through hole 225. The second flange 226 extends away from the partition 22. Second notches are formed on both sides of the partition 22, and a return channel 227 is formed on the outer periphery of the partition 225. The return channel 227 is connected to the first flow channel 231 through the second notch and is connected to the accommodating cavity. Coolant flows from the second through hole 225 to the heat exchange channel, and from the heat exchange channel to the return channel 227 along the first flow channel 231.

[0079] Specifically, the flow direction of the coolant in this embodiment is as follows: Figure 5 As shown, the coolant enters the second through hole 225 from the inlet 211. Since the second through hole 225 is connected to the heat-conducting plate 23, the coolant is guided into the heat exchange channel through the second through hole 225 for heat exchange. At the same time, the baffle 22 has a second notch on both sides corresponding to the first flow channel 231, and the baffle 22 forms a return channel 227 on the outer periphery of the second through hole 225. The return channel 227 is connected to the first flow channel 231 through the second notch and is connected to the accommodating cavity. The stator 1 is electrically connected to an AC motor, which generates a magnetic field, causing the rotor 13 to rotate, driving the impeller 14 to rotate, thereby guiding the coolant from the first flow channel 231 through the second notch and the return channel 227 into the outlet 212.

[0080] For example, such as Figure 1 and Figure 3As shown, the second through hole 225 is an elongated oval through hole. More specifically, since the second through hole 225 is directly connected to the heat exchange channel, the length of the second through hole 225 is adapted to the total width of the heat dissipation fins and the heat exchange channel. For example, the heat conduction plate 23 is provided with 20 heat dissipation fins, and a heat exchange channel is formed between two adjacent heat dissipation fins, that is, 19 heat exchange channels are formed on the heat conduction plate 23. Taking the width of one heat dissipation fin as 0.1cm and the width of one heat exchange channel as 0.2cm, the total width of the 20 heat dissipation fins is 2cm; the total width of the 19 heat exchange channels is 3.8cm, and the total width is 5.8cm. Therefore, the length of the second through hole 225 can be set to 5.8cm. In some embodiments, in order to leave some error margin, the length of the second through hole 225 can also be set to 6cm. The above are just examples. Those skilled in the art can design the length of the second through hole 225 according to the actual situation.

[0081] In some embodiments, since the heat-conducting plate 23 has a first flow channel 231 and a heat exchange channel, and the return channel 227 of the baffle 22 is connected to the first flow channel 231, when the coolant returns, some coolant may flow back along the second through hole 225 and enter the inner cavity of the impeller 14, affecting the flow rate of the coolant. In order to guide the coolant to flow in a predetermined direction and prevent the coolant from entering the inner cavity of the impeller 14, a second flange 226 is formed on the outer periphery of the bottom of the baffle 22 corresponding to the second through hole 225. The second flange 226 extends away from the baffle 22. Since the coolant enters the heat exchange channel through the second through hole 225 and the heat exchange channel is connected to the first flow channel 231, the return direction of the coolant is through the first flow channel 231, the second notch and the return channel 227 to the outlet 212. Therefore, the second flange 226 does not need to have a notch.

[0082] Furthermore, in order to ensure the sealing between the bearing 12 and the seat 21 and to prevent leakage of coolant, the water-cooled heat dissipation device of this utility model also includes a first sealing element 3; the first sealing element 3 is disposed between the bearing 12 and the seat 21.

[0083] Specifically, the first seal 3 is rectangular and is fitted inside the bottom of the bearing 12, since the bearing 12 and the seat 21 are fixed by screws. For example, the first seal 3 can be a rubber ring. The first seal 3 prevents water-cooled liquid from leaking from the gap between the bearing 12 and the seat 21.

[0084] Furthermore, in order to ensure the sealing between the base 21 and the heat-conducting plate 23 and prevent water coolant leakage, the water-cooled heat dissipation device of this utility model also includes a second sealing element 4; the second sealing element 4 is disposed between the base 21 and the heat-conducting plate 23.

[0085] Specifically, the second seal 4 is rectangular and is fitted inside the bottom of the base 21. More specifically, the second seal 4 is fitted below the partition 22. The second seal 4 prevents water-cooled liquid from entering the impeller 14 cavity.

[0086] In some embodiments, to facilitate faster installation of the water-cooled heat dissipation device of the present invention, the water-cooled heat dissipation device of the present invention has an installation groove formed on the lower outer side of the base body 21, and a fastener 5 is installed on the installation groove, with an installation hole 51 at the end of the fastener 5.

[0087] Specifically, the end of the fastener 5 can have an elongated oval mounting hole 51 or a triple-hole design; both the elongated oval mounting hole 51 and the triple-hole design ensure that the position of the water-cooled heat dissipation device described in this utility model can be finely adjusted. The mounting groove and fastener 5 facilitate faster installation of the water-cooled heat dissipation device described in this utility model.

[0088] Furthermore, in order to protect the stator 1 and prevent it from being damaged or covered in dust, the water-cooled heat dissipation device of this utility model also includes a housing 6.

[0089] Specifically, such as Figure 1 As shown, the housing 6 is connected to the base 21; for example, the housing 6 and the base 21 can be fastened together by a snap-fit; or they can be connected by conventional screws; those skilled in the art can choose according to the actual situation.

[0090] Furthermore, in order to make the rotor 13 rotate more smoothly, the water cooling heat dissipation device of this utility model also includes a bearing 7 and a shaft core 8; the bearing 7 and the shaft core 8 are coaxially arranged with the rotor 13; the bearing 7 is sleeved on the outside of the shaft core 8; the bearing 7 is arranged inside the rotor 13.

[0091] Specifically, the main function of bearing 7 is to support the rotation of rotor 13, reduce friction and wear of rotor 13 during rotation, and enable rotor 13 to rotate smoothly.

[0092] Furthermore, the water-cooled heat dissipation device of this utility model also includes a wear-resistant plate 9; the wear-resistant plate 9 is sleeved on the shaft core 8 and connected to the shaft core 8.

[0093] Specifically, the wear-resistant plate 9 reduces wear between the shaft core 8 and the bearing 7, extending the service life of both. Furthermore, since the wear-resistant plate 9 is a consumable, it can be replaced when excessively worn, reducing maintenance costs.

[0094] For example, the material of the wear-resistant plate 9 can be molybdenum nylon, graphite sheet, ceramic sheet, etc., and those skilled in the art can make an appropriate selection according to actual needs.

[0095] Furthermore, the water-cooled heat dissipation device of this utility model also includes a soft rubber pad 10; the soft rubber pad 10 is disposed between the partition 22 and the heat-conducting plate 23; a third through hole is provided on the soft rubber pad 10 to allow the partition 22 to communicate with the heat-conducting plate 23.

[0096] Specifically, since the partition 22 is not in direct contact with the heat-conducting plate 23, but the heat-conducting plate 23 is connected to the base 21 by screws, that is, the heat-conducting plate 23 is connected to the base 21, in order to make the coolant flow in the predetermined direction, a soft rubber pad 10 is provided between the partition 22 and the heat-conducting plate 23. For example, the soft rubber pad 10 can be a rubber pad. The soft rubber pad 10 can guide the coolant to flow in the predetermined direction and also play a buffering role, so as to prevent the water pressure from directly impacting the partition 22 and affecting the performance of the partition 22.

[0097] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A water-cooled heat dissipation device, characterized in that, Includes pump body assembly and base assembly; The pump body assembly includes a stator, a bearing, a rotor, and an impeller; The base assembly includes a base body, a partition, and a heat-conducting plate; The stator is connected to the bearing; the stator is clearance-fitted with the rotor; the rotor is coaxially arranged with and connected to the impeller; the impeller is rotatably connected to the bearing. The support is connected to the base body; the partition is disposed between the base body and the heat-conducting plate; the partition is connected to the heat-conducting plate and the base body respectively; the base body has a receiving cavity, and the impeller is housed in the receiving cavity; the base body has a water inlet and a water outlet; the receiving cavity is connected to the water outlet; The heat-conducting plate is connected to the base; a first flow channel is opened on the heat-conducting plate, and a plurality of heat dissipation fins are provided on the heat-conducting plate; a heat exchange channel is formed between two adjacent heat dissipation fins.

2. The water-cooled heat dissipation device according to claim 1, characterized in that, The base assembly also includes a sealing ring, the inner side of the base body is adapted to the partition; a groove adapted to the sealing ring is formed on the top of the inner side of the base body, and the sealing ring is disposed in the groove; the side of the sealing ring away from the groove abuts against the partition.

3. The water-cooled heat dissipation device according to claim 1, characterized in that, The partition plate has a first through hole along its thickness direction. One end of the first through hole is connected to the accommodating cavity, and the other end is connected to the heat-conducting plate. A return port is formed at the bottom of the partition plate corresponding to the first through hole. A first flange is formed at the bottom of the partition plate along the outer periphery of the return port. The first flange extends away from the partition plate. A first notch is formed at the first flange corresponding to the first through hole. A second flow channel is formed on the outer periphery of the partition plate. The second flow channel is connected to the first flow channel. Coolant flows from the second flow channel to the first flow channel and from the first flow channel to the first through hole.

4. The water-cooled heat dissipation device according to claim 1, characterized in that, The partition plate has a second through hole along its thickness direction. One end of the second through hole is connected to the water inlet, and the other end is connected to the heat-conducting plate. The second through hole is an elongated oval through hole. A second flange is formed on the bottom of the partition plate along the outer periphery of the second through hole. The second flange extends away from the partition plate. Second notches are formed on both sides of the partition plate, and a return channel is formed on the outer periphery of the second through hole. The return channel is connected to the first flow channel through the second notch and is connected to the accommodating cavity. Coolant flows from the second through hole to the heat exchange channel and from the heat exchange channel along the first flow channel to the return channel.

5. The water-cooled heat dissipation device according to claim 1, characterized in that, It also includes a first seal; the first seal is disposed between the bearing and the seat body.

6. The water-cooled heat dissipation device according to claim 1, characterized in that, It also includes a second seal; the second seal is disposed between the seat and the partition.

7. The water-cooled heat dissipation device according to claim 1, characterized in that, A mounting groove is formed on the lower outer side of the base, and a fastener is installed on the mounting groove. The end of the fastener has a mounting hole.

8. The water-cooled heat dissipation device according to claim 1, characterized in that, It also includes a housing; the housing is connected to the base.

9. The water-cooled heat dissipation device according to claim 1, characterized in that, It also includes bearings, shaft cores, and wear-resistant plates; the bearings and shaft cores are coaxially arranged with the rotor; the bearings are sleeved on the outside of the shaft cores; the bearings are arranged inside the rotor; the wear-resistant plates are sleeved on the shaft cores and connected to the shaft cores.

10. The water-cooled heat dissipation device according to claim 1, characterized in that, It also includes a soft rubber pad; the soft rubber pad is disposed between the partition and the heat-conducting plate; the soft rubber pad has a third through hole to allow the partition and the heat-conducting plate to communicate.

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