Double-pump liquid cooling device

Abstract

A double-pump liquid cooling device comprises a base, two pumps, a partition assembly and a base, the base comprises a first base body and a second base body which are stacked and is provided with two channels, the first base body is provided with a liquid outlet connector and a confluence cavity which are communicated, and the second base body is provided with a liquid inlet connector, a liquid collection cavity and two containing grooves which are arranged in parallel and are communicated. The liquid collecting cavity is located between the confluence cavity and the containing grooves, the channels correspond to the containing grooves respectively and are located on the two different sides of the liquid collecting cavity, the pumps correspond to the containing grooves respectively, the separation assembly shields the confluence cavity and is provided with a through groove set, the first seat body is arranged on the base, and a heat exchange cavity is formed between the separation assembly and the base. The two ends of each channel communicate with the heat exchange cavity and the corresponding containing groove correspondingly, and the heat exchange cavity communicates with the confluence cavity through the through groove set. Therefore, the flow of the cooling liquid can be effectively increased, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of liquid cooling and heat dissipation, and in particular to a dual-pump liquid cooling device. Background Art

[0002] In a liquid cooling system, the coolant is sealed and filled in a closed loop for circulation, and the coolant is used as a medium to carry the heat from the heat source to the heat sink for cooling and dissipation. Therefore, a pump is mostly used in liquid cooling systems to promote the flow of coolant, and the faster the flow rate of the coolant, the better the heat dissipation efficiency of the entire liquid cooling system.

[0003] However, as electronic technology develops towards thinness and high performance, the heat generated has also increased significantly, but the cooling device with a single pump can only push the flow rate of the coolant at a limited rate, resulting in insufficient heat dissipation efficiency. In addition, in order to cope with the thin design, when the overall volume of the liquid cooling system is reduced, the capacity of the coolant that can be accommodated is also relatively reduced, so that after a period of use, the liquid cooling system will be insufficient due to coolant evaporation or leakage, thereby affecting the operation of the liquid cooling system. Summary of the invention

[0004] The main purpose of the present invention is to effectively increase the flow rate of coolant in a dual-pump liquid cooling device to improve heat dissipation efficiency and avoid the situation where the coolant is insufficient due to evaporation or leakage after long-term use.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a dual-pump liquid cooling device, including a base, a pair of pumps, a partition component and a base, the base including a first base body and a second base body and having a pair of channels, the second base body is arranged on the first base body, the first base body has a liquid outlet interface and a confluence chamber, the liquid outlet interface is connected to the confluence chamber, the second base body has a liquid inlet interface, a liquid collecting chamber and a pair of containing grooves, the liquid inlet interface is connected to the liquid collecting chamber, each containing groove is arranged in parallel and is respectively connected to the liquid collecting chamber, the liquid collecting chamber is completely located between the confluence chamber and the pair of containing grooves, each channel is respectively configured to correspond to each containing groove and is located on different sides of the liquid collecting chamber, each pump is respectively configured to correspond to each containing groove, the partition component shields the confluence chamber, the partition component has a through groove group, the first base body is arranged on the base, a heat exchange chamber is formed between the partition component and the base, the two ends of each channel are respectively connected to the heat exchange chamber and the corresponding containing groove, and the heat exchange chamber is connected to the confluence chamber via the through groove group.

[0006] In one embodiment of the present invention, the base has a plurality of fins arranged in parallel with each other, a plurality of flow channels are formed between the fins, both ends of each flow channel are connected to each channel, and each flow channel is connected to the confluence cavity via a through groove group.

[0007] In one embodiment of the present invention, each fin divides the heat exchange chamber into each flow channel, a pair of diversion areas and a pair of inlet areas. The two ends of each flow channel are respectively connected to the inlet areas, and the two ends of each inlet area are respectively connected to the diversion areas. Each inlet area and each fin are located between the diversion areas, and one end of each channel connected to the heat exchange chamber is respectively connected to the diversion areas.

[0008] In one embodiment of the present invention, the position where each channel communicates with the corresponding flow dividing area is located at the center of the flow dividing area.

[0009] In one embodiment of the present invention, the partition assembly includes a partition plate and a guide plate, and the partition plate is disposed between the first base and the guide plate.

[0010] In one embodiment of the present invention, the partition assembly also includes an abutment plate, which is arranged between the guide plate and the base, and the abutment plate has a pair of limit baffles, and the guide plate has a pair of positioning baffles, each limit baffle is limited to the opposite sides of the guide plate, and each positioning baffle is limited to the opposite sides of the abutment plate and is located between each limit baffle.

[0011] In one embodiment of the present invention, the second seat body includes a main body and a cover plate, the main body has a liquid inlet interface, a liquid collecting cavity and the pair of containing grooves, the cover plate has a pair of installation grooves, the cover plate is arranged on the main body and covers each containing groove, and each installation groove corresponds to each containing groove configuration.

[0012] In one embodiment of the present invention, each pump includes a stator assembly and a rotor assembly. Each rotor assembly is disposed in each receiving groove, and each stator assembly is disposed in each mounting groove.

[0013] In one embodiment of the present invention, each channel includes a first channel section and a second channel section that are interconnected. Each first channel section is arranged on the first seat body and is connected to the heat exchange chamber and the corresponding second channel section. Each second channel section is arranged on the second seat body and is connected to the corresponding containing groove and the corresponding first channel section.

[0014] In one embodiment of the present invention, the liquid inlet port and the liquid outlet port are located on the same side of the base.

[0015] The dual-pump liquid cooling device of the present invention forms a liquid collecting cavity on the second base body, and each pump is arranged in parallel in each tank. Therefore, after the coolant enters from the liquid inlet interface, it can first be collected and converged in the liquid collecting cavity, and then enter each tank and each channel in sequence through the suction force generated by the operation of each pump, and then enter the heat exchange cavity, thereby effectively increasing the flow rate of the coolant in the dual-pump liquid cooling device to improve the heat dissipation efficiency and avoiding the situation where the coolant is insufficient due to evaporation or leakage after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred implementation scheme will be described below in a clear and understandable manner in conjunction with the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of a dual-pump liquid cooling device.

[0017] Figure 1 It is a three-dimensional exploded view of the present invention.

[0018] Figure 2 It is a three-dimensional exploded view from another viewing angle of the present invention.

[0019] Figure 3 It is a three-dimensional exploded view of the base of the present invention.

[0020] Figure 4 It is a three-dimensional appearance diagram of the present invention.

[0021] Figure 5 It is a sectional front view of the present invention.

[0022] Figure 6 It is a cross-sectional side view of the liquid inlet interface of the present invention.

[0023] Figure 7 It is a cross-sectional side view of the liquid outlet interface of the present invention.

[0024] Figure 8 It is a cross-sectional top view of the present invention.

[0025] Fig. 9 The present invention Figure 5 AA section view.

[0026] Fig.10 The present invention Figure 5 BB cross-sectional view.

[0027] Fig.11 The present invention Figure 5 CC cross-sectional view.

[0028] Description of Figure Numbers:

[0029] 10: base, 101: channel, 1011: first channel section, 1012: second channel section, 11: first seat body, 111: liquid outlet interface, 112: confluence chamber, 12: second seat body, 121: liquid inlet interface, 122: liquid collecting chamber, 123: container tank, 124: main body, 125: cover plate, 1251: mounting slot, 20: pump, 21: stator assembly, 22: rotor assembly, 30: partition assembly, 301: through slot group, 3011: through hole, 3012: first through slot, 3013: second through slot, 3014: third through slot, 31: partition plate, 311: enclosure, 312: engaging protrusion, 32: guide plate, 321: groove, 322: positioning baffle, 33: abutment sheet, 331: limit baffle, 40: base, 41: heat exchange chamber, 411: diversion area, 412: inflow area, 42: fin, 43: flow channel, D: up and down direction. DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be understood that the terms "front", "rear", "left side", "right side", "front end", "rear end", "end", "longitudinal", "lateral", "vertical", "top", "bottom", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] As used herein, terms such as "first," "second," "third," "fourth," and "fifth" describe various elements, components, regions, levels, and / or portions, which should not be limited by these terms. These terms may only be used to distinguish one element, component, region, level, or portion from another. Unless the context clearly indicates otherwise, terms such as "first," "second," "third," "fourth," and "fifth" as used herein do not imply a sequence or order.

[0032] As used herein and not otherwise defined, the terms "substantially" and "approximately" are used to describe and describe small variations. When applied to an event or circumstance, the term may include the exact moment the event or circumstance occurred, as well as the event or circumstance occurring to a close approximation. For example, when applied to a numerical value, the term may include a range of variation less than or equal to ±10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, or less than or equal to ±0.05%.

[0033] The detailed description and technical contents of the present invention will be described as follows with reference to the drawings. However, the drawings are only for illustration purposes and are not intended to limit the present invention.

[0034] The present invention provides a dual-pump liquid cooling device, which can allow a cooling liquid to flow through. Figures 1 to 5 As shown, the dual-pump liquid cooling device of the present invention includes a base 10 , a pair of pumps 20 , a partition assembly 30 and a base 40 .

[0035] The base 10 includes a first base body 11 and a second base body 12. The first base body 11 is disposed on the base 40 along a vertical direction D. The second base body 12 is stacked on the first base body 11 along the vertical direction D. The first base body 11 has a liquid outlet 111 and a confluence cavity 112. The confluence cavity 112 is formed on a side of the first base body 11 away from the second base body 12. Specifically, the confluence cavity 112 is formed at the bottom of the first base body 11. Please refer to Figure 7 and Figure 8 As shown, the liquid outlet interface 111 is arranged at the top of the first seat body 11 and is connected to the confluence chamber 112. The second seat body 12 has a liquid inlet interface 121, a liquid collecting chamber 122 and a pair of containing grooves 123. The liquid collecting chamber 122 is formed on one side of the second seat body 12 adjacent to the first seat body 11. Specifically, the liquid collecting chamber 122 is formed at the bottom of the second seat body 12. Figure 6 and Figure 8 As shown, the liquid inlet interface 121 is disposed on the side of the second seat body 12 and is connected to the liquid collecting chamber 122. In this embodiment, the liquid inlet interface 121 and the liquid outlet interface 111 are both located on the same side of the base 10, so as to facilitate the wiring of a pair of infusion tubes (not shown) connected to the liquid inlet interface 121 and the liquid outlet interface 111, but in other embodiments, they can also be located on different sides of the base 10. Each container 123 is arranged in parallel on the top of the second seat body 12 and is respectively connected to the liquid collecting chamber 122. In other words, the liquid inlet interface 121 can be connected to each container 123 via the liquid collecting chamber 122, that is, Figure 6 Therefore, please refer to Figure 5 As shown, the liquid collecting chamber 122 is completely located between the confluence chamber 112 and the pair of tanks 123. Specifically, the confluence chamber 112, the liquid collecting chamber 122 and the pair of tanks 123 are sequentially stacked along the vertical direction D. In addition, the base 10 has a pair of channels 101. Each channel 101 is respectively configured corresponding to each tank 123 and is located on different sides of the liquid collecting chamber 122. Figures 1 to 5 As shown, each channel 101 in the present embodiment is disposed along the up-down direction D on both the first base body 11 and the second base body 12, and each channel 101 is relatively arranged on both sides of the base 10, but the present invention is not limited thereto. For example, each channel 101 may also be inclined relative to the up-down direction D, or each channel 101 may also be arranged at the diagonal position of the base 10.

[0036] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 and Fig. 9 As shown, each pump 20 is configured corresponding to each container 123. Specifically, the second seat body 12 includes a main body 124 and a cover plate 125. The main body 124 has the aforementioned liquid inlet interface 121, the liquid collecting chamber 122 and the pair of containers 123. The cover plate 125 has a pair of mounting grooves 1251. The cover plate 125 is disposed on a side of the main body 124 away from the first seat body 11, and the cover plate 125 shields each container 123. Accordingly, the bottom of the liquid collecting chamber 122 is shielded by the first seat body 11, and the top of the liquid collecting chamber 122 is connected to each container 123, and the top of each container 123 is shielded by the cover plate 125. Each mounting groove 1251 is configured corresponding to each container 123, and each mounting groove 1251 is located on a side of the cover plate 125 away from the main body 124. In other words, each mounting groove 1251 and each receiving groove 123 are respectively located on opposite sides of the cover plate 125. Each pump 20 includes a stator assembly 21 and a rotor assembly 22. Each rotor assembly 22 is respectively disposed in each receiving groove 123, and each stator assembly 21 is respectively disposed in each mounting groove 1251. Since the specific structure and operation principle of the pump 20 are well known to those skilled in the art, they will not be described in detail here.

[0037] See also Figure 1 , Figure 2 and Figure 5 As shown, the partition component 30 shields the bottom of the confluence chamber 112. Specifically, the partition component 30 abuts between the base 40 and the first seat body 11. A heat exchange chamber 41 is formed between the partition component 30 and the base 40. The two ends of each channel 101 are respectively connected to the heat exchange chamber 41 and the corresponding container 123. The partition component 30 has a through groove group 301. The heat exchange chamber 41 is connected to the confluence chamber 112 through the through groove group 301. Thereby, when the coolant enters the liquid inlet interface 121, it can be collected and converged in the liquid collecting chamber 122 of the second seat body 12, and is pumped from the liquid collecting chamber 122 to each container 123 through the suction force generated when each pump 20 is running, and then enters the heat exchange chamber 41 through each channel 101, and then enters the confluence chamber 112 through the through groove group 301 of the partition component 30, and finally leaves from the liquid outlet interface 111. Therefore, the provision of the liquid collecting chamber 122 can not only effectively increase the flow rate of the coolant in the dual-pump liquid cooling device to improve the heat dissipation efficiency, but also avoid the situation where the coolant is insufficient due to evaporation or leakage after long-term use.

[0038] To further explain, the base 40 has a plurality of fins 42 arranged in parallel with each other. The fins 42 are arranged in parallel with each other on the side of the base 40 facing the first base body 11 and the partition assembly 30, that is, the fins 42 are arranged on the top of the base 40. A plurality of flow channels 43 parallel to each other are formed between the fins 42. Both ends of each flow channel 43 are connected to each channel 101, and each flow channel 43 is connected to the confluence cavity 112 of the first base body 11 through the through groove group 301 of the partition assembly 30. Specifically, each fin 42 divides the heat exchange cavity 41 into each flow channel 43, a pair of diversion areas 411 and a pair of inflow areas 412. The two ends of each flow channel 43 are respectively connected to each inflow area 412, that is, each fin 42 and each flow channel 43 are vertically arranged between each inflow area 412. The two ends of each inlet area 412 are connected to each diversion area 411, so that each inlet area 412 and each fin 42 are located between each diversion area 411. In other words, each inlet area 412 and each diversion area 411 are respectively arranged around each fin 42 and each flow channel 43 and surround each fin 42 and each flow channel 43. One end of each channel 101 connected to the heat exchange chamber 41 is connected to each diversion area 411. In this embodiment, the position where each channel 101 is connected to the corresponding diversion area 411 is located at the center of the diversion area 411, but the present invention is not limited thereto, and the position where each channel 101 is connected to the corresponding diversion area 411 can be between the two ends of the diversion area 411. Thus, when the coolant flows to the heat exchange chamber 41 through each channel 101, it will first enter the center of the diversion area 411 and be diverted to the two sides to each inlet area 412, and then flow from each inlet area 412 into each flow channel 43 between each fin 42, and finally leave the heat exchange chamber 41 through the through groove group 301 of the partition component 30.

[0039] Please read next Figure 1 , Figure 2 , Figure 5 , Fig.10 and Fig.11 As shown, the partition assembly 30 includes a partition plate 31, a guide plate 32 and an abutment sheet 33. In the present embodiment, the partition plate 31 and the abutment sheet 33 are both metal parts, and the guide plate 32 is made of silicone or rubber, but the present invention is not limited thereto. The partition plate 31 is abutted between the first seat body 11 and the guide plate 32. The abutment sheet 33 is abutted between the guide plate 32 and each fin 42 of the base 40. In other words, the abutment sheet 33, the guide plate 32 and the partition plate 31 of the partition assembly 30 are stacked in sequence along the up-down direction D on the top of each fin 42 of the base 40.

[0040] The partition plate 31 has a wall 311, and the guide plate 32 has a groove 321. Specifically, the wall 311 extends from the partition plate 31 toward one side of the guide plate 32 and is roughly rectangular. The groove 321 is a rectangular groove formed by being recessed from the periphery of the top of the guide plate 32. The wall 311 of the partition plate 31 is clamped in the groove 321 of the guide plate 32, so that the top of the guide plate 32 is confined within the wall 311 at the bottom of the partition plate 31.

[0041] Furthermore, the abutting piece 33 has a pair of limiting baffles 331 on opposite sides, and the guide plate 32 has a pair of positioning baffles 322 on opposite sides. Each limiting baffle 331 of the abutting piece 33 extends vertically toward the guide plate 32 along the up-down direction D, thereby being limited to the opposite sides of the guide plate 32. Each positioning baffle 322 of the guide plate 32 extends vertically toward the abutting piece 33 along the up-down direction D, thereby being limited to the opposite sides of the abutting piece 33 and being located between each limiting baffle 331. In other words, each limiting baffle 331 of the abutting piece 33 limits one of the opposite sides of the guide plate 32, and each positioning baffle 322 of the guide plate 32 is located at the other opposite sides of the guide plate 32.

[0042] Therefore, the partition plate 31 and the guide plate 32 can be embedded in each other and positioned without relative displacement, and the guide plate 32 and the abutment plate 33 can also be embedded in each other and positioned without relative displacement. Moreover, since the guide plate 32 made of silicone or rubber material is sandwiched between the partition plate 31 and the abutment plate 33 of the metal part, it can effectively prevent the strong impact of the coolant from bottom to top along the up and down direction D from causing deformation or displacement of the guide plate 32, thereby ensuring that the coolant can flow stably when flowing through the partition component 30.

[0043] For further explanation, see Figure 1 , Figure 2 , Figure 5 , Fig.10 and Fig.11As shown, the through slot group 301 includes a through hole 3011, a first through slot 3012, a second through slot 3013 and a third through slot 3014. The through hole 3011 and the first through slot 3012 are arranged on the partition plate 31. Specifically, the through hole 3011 is a circular hole and penetrates the partition plate 31 along the up-down direction D, and the first through slot 3012 is arranged at the bottom of the partition plate 31 and is connected to the through hole 3011. The partition plate 31 has an engaging protrusion 312. The engaging protrusion 312 protrudes from the partition plate 31 toward one side of the guide plate 32. The second through slot 3013 penetrates the guide plate 32 along the up-down direction D, and the shape of the second through slot 3013 corresponds to the shape of the engaging protrusion 312. The engaging protrusion 312 of the partition plate 31 is clamped in the second through slot 3013 of the guide plate 32, so as to further position the partition plate 31 and the guide plate 32. The first through slot 3012 is disposed in the engaging protrusion 312 and is connected to the second through slot 3013. In the present embodiment, the center of the first through slot 3012 is a circular hole, and long strip-shaped holes are extended on opposite sides thereof, and the diameter of the circular hole at the center is greater than the width of the strip-shaped hole, but the present invention is not limited thereto. The third through slot 3014 penetrates the contact piece 33 along the up-down direction D, and the third through slot 3014 is connected to the second through slot 3013 and the first through slot 3012 and is connected to the through hole 3011. In the present embodiment, the third through slot 3014 is in the shape of a long strip and is divided into two narrow sections and one wide section, and the position of the wide section is substantially corresponding to the position of the circular hole at the center of the first through slot 3012, and each narrow section is connected to the opposite sides of the wide section and is substantially corresponding to each strip-shaped hole of the first through slot 3012, but the present invention is not limited thereto.

[0044] It is worth mentioning that the through slot set 301 of the partition assembly 30 is substantially perpendicular to each fin 42 and each flow channel 43, and the through slot set 301 is substantially located at the center of each fin 42 and each flow channel 43. Figure 1 and Figure 2For example, each fin 42 and each channel 43 are parallel to the front-to-back direction of the base 10 and the base 40 (i.e., the direction in which the liquid inlet interface 121 and the liquid outlet interface 111 are arranged), and the first through slot 3012 and the third through slot 3014 of the through slot group 301 are parallel to the left-right direction of the base 10 and the base 40, so the first through slot 3012 and the third through slot 3014 are perpendicular to each fin 42 and each channel 43. Therefore, when the coolant enters each channel 43 from each inlet area 412, it will flow to the center of each fin 42 and each channel 43, and then enter the third through slot 3014, the second through slot 3013, the first through slot 3012 and the through hole 3011 in sequence along the up-down direction D, so as to enter the confluence cavity 112 of the first base body 11 through the partition assembly 30 for confluence. When the coolant passes through the third through groove 3014 and the first through groove 3012 , it will be affected by the narrow sections and the strip holes respectively and gradually converge toward the wide section and the circular holes, and then flow out from the through hole 3011 of the partition plate 31 .

[0045] See also Figures 1 to 5 As shown, each channel 101 includes a first channel section 1011 and a second channel section 1012 that are interconnected. Each first channel section 1011 is disposed on the first base 11, and each first channel section 1011 is connected to the heat exchange chamber 41 and the corresponding second channel section 1012. Each second channel section 1012 is disposed on the second base 12, and each second channel section 1012 is connected to the corresponding receiving groove 123 and the corresponding first channel section 1011. In this embodiment, the first channel section 1011 and the second channel section 1012 in each channel 101 have the same inner diameter and are coaxially arranged, but in other embodiments, the first channel section 1011 and the second channel section 1012 of each channel 101 may also have different inner diameters or be non-coaxially arranged.

[0046] The dual-pump liquid cooling device of the present invention forms a liquid collecting chamber 122 on the second base body 12, and each pump 20 is arranged in parallel in each container 123. Therefore, after the coolant enters from the liquid inlet interface 121, it can first be collected and converged in the liquid collecting chamber 122, and then enter the each container 123 and each channel 101 in sequence through the suction force generated when each pump 20 is running, and then enter the heat exchange chamber 41, thereby effectively increasing the flow rate of the coolant in the dual-pump liquid cooling device to improve the heat dissipation efficiency and avoid the situation where the coolant is insufficient due to evaporation or leakage after long-term use.

[0047] In summary, the above disclosure of the present invention is to enable those with ordinary knowledge in the field to clearly understand the technical content of the present invention and implement it accordingly, and is not intended to limit the scope of patent protection of the present invention. In addition, the present invention may of course have other unlisted embodiments. Without departing from the spirit and essence of the present invention, those familiar with the art should be able to evolve various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the patent applied for by the present invention.

Claims

1. A dual-pump liquid cooling device, characterized in that: include: A base (10) comprises a first base body (11) and a second base body (12) and has a pair of channels (101). The second base body (12) is arranged on the first base body (11). The first base body (11) has a liquid outlet interface (111) and a flow confluence cavity (112). The liquid outlet interface (111) is connected to the flow confluence cavity (112). The second base body (12) has a liquid inlet interface (121), a liquid collecting interface (122) and a liquid collecting interface (123). The liquid inlet interface (121) is connected to the liquid collecting chamber (122), the respective containing grooves (123) are arranged in parallel and are respectively connected to the liquid collecting chamber (122), the liquid collecting chamber (122) is completely located between the confluence chamber (112) and the pair of containing grooves (123), and the respective channels (101) are respectively arranged corresponding to the respective containing grooves (123) and are located on different sides of the liquid collecting chamber (122); A pair of pumps (20) are respectively disposed corresponding to each of the containing grooves (123); A partition component (30) shielding the confluence cavity (112), the partition component (30) having a through slot set (301); and A base (40), the first base body (11) is arranged on the base (40), a heat exchange chamber (41) is formed between the partition component (30) and the base (40), the two ends of each channel (101) are respectively connected to the heat exchange chamber (41) and the corresponding receiving groove (123), and the heat exchange chamber (41) is connected to the confluence chamber (112) via the through groove group (301).

2. The dual-pump liquid cooling device according to claim 1, characterized in that: The base (40) has a plurality of fins (42) arranged in parallel with each other, and a plurality of flow channels (43) are formed between the fins (42). Both ends of each flow channel (43) are connected to each channel (101), and each flow channel (43) is connected to the confluence cavity (112) via the through groove group (301).

3. The dual-pump liquid cooling device according to claim 2, characterized in that: Each of the fins (42) divides the heat exchange chamber (41) into each of the flow channels (43), a pair of flow diversion areas (411) and a pair of flow inlet areas (412); both ends of each of the flow channels (43) are respectively connected to each of the flow inlet areas (412); both ends of each of the flow inlet areas (412) are respectively connected to each of the flow diversion areas (411); each of the flow inlet areas (412) and each of the fins (42) are located between each of the flow diversion areas (411); and one end of each of the channels (101) connected to the heat exchange chamber (41) is respectively connected to each of the flow diversion areas (411).

4. The dual-pump liquid cooling device according to claim 3, characterized in that: The position where each channel (101) is connected to the corresponding diversion area (411) is located at the center of the diversion area (411).

5. The dual-pump liquid cooling device according to claim 1, characterized in that: The partition assembly (30) comprises a partition plate (31) and a guide plate (32), wherein the partition plate (31) is arranged between the first seat body (11) and the guide plate (32).

6. The dual-pump liquid cooling device according to claim 5, characterized in that: The partition assembly (30) further comprises an abutment sheet (33), the abutment sheet (33) being arranged between the guide plate (32) and the base (40), the abutment sheet (33) having a pair of limit baffles (331), the guide plate (32) having a pair of positioning baffles (322), each of the limit baffles (331) being limited to two opposite sides of the guide plate (32), each of the positioning baffles (322) being limited to two opposite sides of the abutment sheet (33) and being located between each of the limit baffles (331).

7. The dual-pump liquid cooling device according to claim 1, characterized in that: The second base body (12) comprises a main body (124) and a cover plate (125); the main body (124) has the liquid inlet interface (121), the liquid collecting chamber (122) and the pair of containing grooves (123); the cover plate (125) has a pair of mounting grooves (1251); the cover plate (125) is arranged on the main body (124) and covers each of the containing grooves (123); each of the mounting grooves (1251) is respectively configured corresponding to each of the containing grooves (123).

8. The dual-pump liquid cooling device according to claim 7, characterized in that: Each of the pumps (20) includes a stator assembly (21) and a rotor assembly (22), each of the rotor assemblies (22) is disposed in each of the receiving grooves (123), and each of the stator assemblies (21) is disposed in each of the mounting grooves (1251).

9. The dual-pump liquid cooling device according to claim 7, characterized in that: Each of the channels (101) comprises a first channel section (1011) and a second channel section (1012) which are interconnected; each of the first channel sections (1011) is arranged on the first seat body (11) and is connected to the heat exchange chamber (41) and the corresponding second channel section (1012); each of the second channel sections (1012) is arranged on the second seat body (12) and is connected to the corresponding containing groove (123) and the corresponding first channel section (1011).

10. The dual-pump liquid cooling device according to claim 1, characterized in that: The liquid inlet port (121) and the liquid outlet port (111) are located on the same side of the base (10).

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