A heat exchange water cooling system integrating pump cover and drive structure

Abstract

This utility model discloses a heat exchange water-cooling system integrating a pump cover and a drive structure, including a pump casing and a cover plate. The pump casing has an inner cavity with an upper opening at its upper end. The bottom wall of the pump casing has a water-cooling plate or a positioning plate. The cover plate is installed at the upper opening, and the lower wall of the cover plate has a waterproof layer. The cover plate and the inner cavity form a sealed cavity, and the sealed cavity has a pivotally mounted impeller. A permanent magnet is installed on the horizontal surface of the impeller. The cover plate integrates a magnetic induction coil, which is used to apply an axial driving force to the permanent magnet and drive the impeller to rotate. The pump casing has a water inlet and a water outlet, which are located on the side wall of the pump casing. Through the cooperation of the magnetic induction coil and the permanent magnet, axial drive is effectively achieved, changing the traditional radial drive. This simplifies the pump casing structure, makes mold design more stable during injection molding, improves production efficiency, and reduces production costs.

Description

Technical Field

[0001] This utility model relates to the field of computer water-cooled heat exchange systems, and in particular to a heat exchange water-cooled system in which the pump cover and drive structure are integrated. Background Technology

[0002] Computer water cooling refers to the use of a liquid with a high specific heat coefficient (such as water) as a medium in commonly used computer cooling systems to help remove heat from internal components. Computer water cooling generally has the following advantages: minimal temperature fluctuations under circulating cooling, significant temperature control of cooled components, and stable and reliable operation over long periods; low vibration and noise when using brushless electric pumps; and a sleek overall appearance with minimal static electricity buildup.

[0003] For example, Chinese patent CN202211202363.4 uses a structure with concave and convex features on the guide plate to achieve mutual cooperation between the impeller and the drive device.

[0004] This structure has the following problems:

[0005] 1. In order to achieve its thinner design, its structure is complex, and it is also impossible to avoid the existing concave and convex structure to achieve radial drive between the magnetic coil and the permanent magnet.

[0006] 2. In order to enclose or cover electronic components, an additional housing is required, which increases the thickness accordingly. Utility Model Content

[0007] The main purpose of this invention is to propose a heat exchange water cooling system that integrates the pump cover and the drive structure, aiming to improve existing computer water cooling systems by reducing their overall thickness and simplifying their structure.

[0008] To achieve the above objectives, this utility model proposes a heat exchange water cooling system integrating the pump cover and drive structure, comprising:

[0009] The pump casing has an inner cavity with an upper opening at the upper end, and the bottom wall of the pump casing is provided with a water-cooling plate or a positioning plate.

[0010] A cover plate is installed at the upper opening, and the lower wall of the cover plate is provided with a waterproof layer. The cover plate and the inner cavity form a sealed cavity, and the sealed cavity is provided with a pivotally mounted impeller.

[0011] The impeller has a permanent magnet on its horizontal surface, and the cover plate integrates a magnetic coil. The magnetic coil is used to apply an axial driving force to the permanent magnet and drive the impeller to rotate.

[0012] The pump casing is provided with an inlet and an outlet, which are located on the side wall of the pump casing.

[0013] In practical design, this application can be used as a standalone water pump module or as a module integrating the water pump and the cold plate.

[0014] When used as a standalone pump module (i.e., the bottom wall of the pump casing is a positioning plate), the fluid enters the inner cavity through the inlet, and then the magnetic coil of the cover plate drives the permanent magnet, thereby enabling the stator to drive the impeller with the rotor to rotate, so that the fluid is output from the inner cavity to the outlet.

[0015] When used as a module integrating a water pump and a cooling plate, the bottom wall of the pump casing is equipped with a water-cooling plate, so that after the fluid passes through the water-cooling plate in the inner cavity, it can be directly driven by the impeller to flow out of the outlet or pass through the guide plate and then driven by the impeller to flow out of the outlet, thereby realizing heat exchange.

[0016] By integrally molding the cover plate and magnetic coil (i.e., stator) and adding a waterproof layer, the overall thickness of the water pump is reduced.

[0017] Then, through the cooperation of the magnetic coil and the permanent magnet (i.e., the rotor), axial drive can be effectively achieved, changing the traditional radial drive. This effectively simplifies the pump housing structure, makes the mold design more stable during injection molding, improves production efficiency, and reduces production costs.

[0018] Furthermore, installation is simpler, eliminating the need for a separate outer cover on the stator. The cover plate can be coated entirely or partially with heat-dissipating, waterproof, or decorative materials, achieving structural integration and waterproofing.

[0019] The design features an axial drive motor with an integrated stator and cover plate, and a flat design, which effectively reduces the overall thickness of the water cooling system. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 For the purpose of this utility model explosion Figure 1 ;

[0022] Figure 3 For the purpose of this utility model explosion Figure 2 ;

[0023] Figure 4 This is a three-dimensional schematic diagram of the concealed pump cover and impeller of this utility model;

[0024] Figure 5 This is a sectional view of the rotating shaft portion of this utility model;

[0025] Figure 6 This is a cross-sectional view of the water inlet portion of this utility model;

[0026] Figure 7 This is a half-sectional view of the water outlet portion of this utility model;

[0027] Figure 8 This is a three-dimensional schematic diagram of the partition section;

[0028] Figure 9 This is a three-dimensional schematic diagram of the splitter section;

[0029] Figure 10 A schematic diagram of the magnetic coil during the layer-by-layer printing of a PCB board;

[0030] Figure 11 This is a schematic diagram of a single-layer magnetic induction coil;

[0031] Figure 12 This is a schematic diagram of the injection molding process where the magnetic coil module and the plastic part are integrated.

[0032] In the picture,

[0033] 1 represents the pump casing, 10 represents the inner cavity, 11 represents the upper opening, and 12 represents the lower opening.

[0034] 2 is the manifold, 21 is the first flow channel cavity, 210 is the surrounding section, 211 is the inner flow channel, and 212 is the outer flow channel.

[0035] 22 is the second flow channel cavity.

[0036] 23 is the first fluid inlet, and 24 is the first fluid outlet.

[0037] 31 is the inlet, 32 is the outlet, and 33 is the notch.

[0038] 4 is the cover plate, 40 is the PCB board, and 41 is the magnetic coil.

[0039] 5 represents the impeller, 50 represents the permanent magnet, 51 represents the flat plate, and 52 represents the blade.

[0040] 6 is a partition, 61 is the upper cavity groove, 62 is the lower cavity groove, 63 is the upper chamber, and 64 is the lower chamber.

[0041] 71 is the upper shaft groove, 72 is the lower shaft groove, and 73 is the bearing.

[0042] 81 is the sealing groove, and 82 is the sealing part.

[0043] 9 is a retaining strip, 90 is a water passage, and 91 is a rib.

[0044] 100 is the water-cooling plate / positioning plate, 101 is the heat sink, and 102 is the heat dissipation channel.

[0045] 200 is the limiting groove, 201 is the bracket, and 202 is the frame. Detailed Implementation

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

[0047] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0048] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0049] like Figures 1 to 12 As shown, a heat exchange water cooling system integrating the pump cover and drive structure includes:

[0050] Pump housing 1, the pump housing 1 is provided with an inner cavity 10, the upper end of the inner cavity 10 is provided with an upper opening 11, and the bottom wall of the pump housing 1 is provided with a water cooling plate 100 or a positioning plate 100 (which can be integrally formed with the pump housing 1 or can be a post-installed structure).

[0051] A cover plate 4 is installed at the upper opening 11. The lower wall of the cover plate 4 is provided with a waterproof layer. The cover plate 4 and the inner cavity 10 form a sealed cavity. The sealed cavity is provided with a pivotally mounted impeller 5.

[0052] The impeller 5 is provided with a permanent magnet on its horizontal surface, and the cover plate 4 is integrated with a magnetic coil 41. The magnetic coil 41 is used to apply an axial driving force to the permanent magnet and drive the impeller 5 to rotate.

[0053] The pump casing 1 is provided with an inlet 31 and an outlet 32, which are located on the side wall of the pump casing 1.

[0054] In practical designs, this application can be used as a standalone water pump module or as an integrated module combining the water pump and the cooling plate.

[0055] When used as a standalone pump module (i.e., the bottom wall of the pump casing 1 is a positioning plate), the fluid enters the inner cavity 10 through the inlet 31, and then drives the permanent magnet through the magnetic coil 41 of the cover plate 4, thereby enabling the stator to drive the impeller 5 equipped with a rotor to rotate, so that the fluid is output from the inner cavity 10 to the outlet 32.

[0056] When used as a module integrating a water pump and a cooling plate, the bottom wall of the pump casing 1 is provided with a water-cooling plate, so that after the fluid passes through the water-cooling plate in the inner cavity 10, it can be driven by the impeller 5 to flow out of the outlet 32 ​​directly, or it can be driven by the impeller 5 to flow out of the outlet 32 ​​after passing through the guide plate, thereby realizing heat exchange.

[0057] The cover plate 4 and the magnetic induction coil 41 (i.e., the stator) are integrally formed and a waterproof layer is provided, which firstly reduces the overall thickness of the water pump.

[0058] Then, through the cooperation of the magnetic induction coil 41 and the permanent magnet (i.e., the rotor), axial drive can be effectively realized, changing the traditional radial drive. This effectively simplifies the structure of the pump housing 1, makes the mold design more stable during injection molding, improves production efficiency, and reduces production costs.

[0059] Furthermore, installation is simpler, as there is no need to install an additional outer cover on the stator. The cover plate 4 can be coated with heat dissipation material, waterproof material, or decorative layer in whole or in part, achieving structural integration and waterproofing.

[0060] The design features an axial drive motor with an integrated stator and cover plate, and a flat design, which effectively reduces the overall thickness of the water cooling system.

[0061] Specifically, the cover plate 4 is a PCB board 40, and the magnetic coil 41 is formed by printing the cover plate 4 layer by layer or embedding copper plates layer by layer.

[0062] In actual design, the structure of the printed copper plate of the cover plate 4 is existing technology. To achieve the predetermined magnetic flux by printing layer by layer, it is necessary to make it reach the predetermined number of layers, such as 5 to 30 layers. Each layer can be set with multiple turns, such as a spiral structure.

[0063] Specifically, each layer of magnetic induction coil 41 has multiple turns, which can be circular, spiral, or other shapes, and can be designed according to the required power.

[0064] Specifically, the magnetic induction coil 41 is integrally injection molded with plastic, wherein the magnetic induction coil 41 can be a coil module, and the magnetic induction coil 41 can be a magnetically levitated magnet, thereby applying a magnetic driving force in the axial direction.

[0065] Specifically, a partition 6 is provided at the middle of the pump casing 1 in the height direction, and the partition 6 divides the inner cavity 10 into an upper cavity groove 61 and a lower cavity groove 62.

[0066] The upper cavity 61 has an upper opening 11 at its upper end, and the cover plate 4 is installed at the upper opening 11 and forms an upper chamber 63 with the upper cavity 61; the lower cavity 61 has a lower opening 12 at its lower end, and the water-cooling plate is installed at the lower opening 12. The water-cooling plate and the lower chamber form a lower chamber 64.

[0067] The impeller 5 is pivotally mounted in the upper chamber.

[0068] The upper chamber is connected to the water outlet 32.

[0069] The lower chamber is connected to the water inlet 31;

[0070] The partition 6 has a flow channel in the middle, which is used to connect the upper chamber and the lower chamber.

[0071] In the actual design, by directly setting the baffle 6 on the pump casing 1, the length of the flow channel is extended, thereby improving the stability of the fluid flow rate and making the contact time between the water cooling plate and the fluid longer, thus avoiding turbulence and the generation of bubbles.

[0072] This design also reduces the spacing between the stator and rotor, making the drive more stable and reducing magnetic flux loss.

[0073] Specifically, the upper wall of the partition 6 is provided with a lower shaft groove, and the cover plate 4 is provided with an upper shaft groove 71 that mates with the lower shaft groove.

[0074] The impeller 5 is provided with a rotating shaft, which is installed between the upper shaft groove 71 and the lower shaft groove. The dual-shaft structure can ensure the stable rotation of the impeller 5.

[0075] Specifically, the rotating shaft is fixedly mounted, and a bearing 73 is sleeved on the outer peripheral wall of the rotating shaft. The impeller 5 is disposed on the outer peripheral wall of the bearing 73. In a preferred embodiment, since the rotating shaft is fixedly mounted, the opposing impellers 5 rotate relative to each other through the bearing 73, thereby ensuring coaxiality and further reducing wear.

[0076] Alternatively, wear-resistant material can be placed between the upper shaft groove 71 and the lower shaft groove to make the shaft movable.

[0077] Specifically, the lower chamber is equipped with a flow divider 2.

[0078] The flow divider 2 is used to divide the lower chamber into a first flow channel 21 and a second flow channel 22, and the lower wall of the second flow channel 22 is the water-cooled plate.

[0079] The first flow channel cavity 21 is provided with a surrounding portion 210, which divides the first flow channel cavity 21 into an inner flow channel 211 and an outer flow channel 212.

[0080] The flow divider 2 is provided with a first fluid inlet 23 and a first fluid outlet 24.

[0081] The inlet 31 is connected to the inner flow channel 211.

[0082] The inner flow channel 211 is connected to the first fluid inlet 23, and the first fluid outlet is connected to the outer flow channel 212.

[0083] The first fluid outlet is connected to the inner flow channel 211, and the inner flow channel 211 is connected to the guiding flow channel.

[0084] In the actual design, the fluid sequentially passes through the inlet 31, the outer flow channel 212, the first fluid inlet 23 of the water distribution plate, the second flow channel cavity 22 (i.e., between the water-cooled plate and the distribution plate 2), the inner flow channel 211, and finally enters the channel channel.

[0085] This effectively increases the flow path, thereby improving the stability of fluid flow rate and increasing fluid contact time.

[0086] Specifically, ribs 91 extend along the Y-axis on both sides of the enclosure 210. The ribs 91 are spaced apart. The arrangement of the ribs 91 can reduce the generation of bubbles and reduce the fluid flow rate so that it enters the first fluid inlet 23 in a more balanced manner.

[0087] Specifically, a sealing groove 81 is recessed on the outer periphery of the diverter plate 2 away from the end, the sealing groove 81 is arranged in a closed loop, and the diverter plate 2 is made of an elastic material (such as rubber, silicone rubber, etc.).

[0088] The pump casing 1 is provided with a sealing part 82 that cooperates with the sealing groove 81. The sealing part 82 extends into the sealing groove 81 and elastically abuts against the flow divider 2.

[0089] Of course, a more specific design could also be adopted, using an external sealing ring.

[0090] By integrally molding the sealing groove 81 with the flow divider 2, assembly is simplified. Furthermore, this integration effectively improves sealing performance and stability.

[0091] Of course, the positions of the sealing groove 81 and the sealing plate can also be interchanged, and their quantity can be one, two, or more.

[0092] Specifically, the impeller 5 includes a flat plate 51 integrally formed with a permanent magnet and blades 52 distributed circumferentially along the axis from the lower wall of the flat plate 51, wherein the permanent magnet and the flat plate 51 are integrally formed.

[0093] Specifically, the pump housing 1 is provided with a slot at the upper opening 11, and a sealing ring is installed in the slot. The sealing ring elastically abuts against the cover plate 4, thereby achieving the sealing of the upper chamber.

[0094] Specifically, the rib 91 is provided with baffles 9 extending along the X-axis on both sides, and water passages 90 are provided on both sides of the baffles 9 to further ensure the stability of the fluid.

[0095] Specifically, the water inlet 31 extends downward at an angle from the horizontal direction, so that the water inlet 31 and the water outlet 32 ​​are at the same horizontal position, making the appearance more aesthetically pleasing.

[0096] Specifically, the upper chamber is circular in shape, and a notch 33 is provided off the outer peripheral edge of the upper chamber. The notch is positioned opposite to the drain outlet to ensure the stability of the fluid and reduce the problem of turbulence.

[0097] Specifically, the water-cooled plate is provided with heat dissipation strips 101 extending along the Y-axis direction. Multiple heat dissipation strips 101 are provided, and heat dissipation grooves 102 are provided between adjacent heat dissipation strips 101, thereby increasing the contact area.

[0098] Specifically, the flow divider 2 has a first fluid outlet in the middle.

[0099] The first fluid outlet is provided with first fluid inlets on both sides to ensure stable water inflow.

[0100] Specifically, the first fluid inlet and the first fluid outlet are strip-shaped, achieving maximum space utilization within a limited space.

[0101] Specifically, the outer wall of the pump casing 1 is provided with a limiting groove 200, which is used to install the bracket 201 for easy installation.

[0102] Specifically, the bracket consists of two stacked frame bodies 202, which facilitates the installation of the water-cooled plate on the CPU or graphics card, thus achieving convenient installation.

[0103] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A heat exchange water cooling system of a pump cover and driving structure integration, characterized in that, include: The pump casing has an inner cavity with an upper opening at the upper end, and the bottom wall of the pump casing is provided with a water-cooling plate or a positioning plate. A cover plate is installed at the upper opening, and the lower wall of the cover plate is provided with a waterproof layer. The cover plate and the inner cavity form a sealed cavity, and the sealed cavity is provided with a pivotally mounted impeller. The impeller has a permanent magnet on its horizontal surface, and the cover plate integrates a magnetic coil. The magnetic coil is used to apply an axial driving force to the permanent magnet and drive the impeller to rotate. The pump casing is provided with an inlet and an outlet, which are located on the side wall of the pump casing.

2. The heat exchange water cooling system integrating the pump cover and drive structure as described in claim 1, characterized in that: The cover plate is a PCB board, and the magnetic coil is formed by printing the cover plate layer by layer or embedding copper plates layer by layer. Each layer of magnetic induction coil has multiple turns.

3. The heat exchange water cooling system integrating the pump cover and drive structure as described in claim 1, characterized in that: The magnetic coil is integrally injection molded with the plastic.

4. The heat exchange water cooling system integrating the pump cover and drive structure as described in claim 1, characterized in that: A baffle is provided at the middle of the pump casing along its height, dividing the inner cavity into an upper cavity and a lower cavity. The upper end of the upper cavity groove is provided with the upper opening, and the cover plate is installed on the upper opening and together with the upper cavity groove to form an upper chamber; The lower end of the lower cavity has a lower opening, and the lower opening is provided with the water-cooling plate. The water-cooling plate and the lower cavity surround the lower cavity. The impeller is pivotally mounted in the upper chamber. The upper chamber is connected to the water outlet. The lower chamber is connected to the water inlet; The partition has a flow channel in the middle, which is used to connect the upper chamber and the lower chamber.

5. The heat exchange water cooling system integrating the pump cover and drive structure as described in claim 4, characterized in that: The upper wall of the partition is provided with a lower shaft groove, and the cover plate is provided with an upper shaft groove that mates with the lower shaft groove. The impeller is provided with a rotating shaft, which is installed between the upper shaft groove and the lower shaft groove; The rotating shaft is fixedly installed, and a bearing is sleeved on the outer peripheral wall of the rotating shaft. The impeller is located on the outer peripheral wall of the bearing.

6. The heat exchange water cooling system integrating the pump cover and drive structure as described in claim 4, characterized in that: The lower chamber is equipped with a flow divider. The flow divider plate is used to divide the lower chamber into a first flow channel cavity and a second flow channel cavity, and the lower wall of the second flow channel cavity is the water-cooled plate; The first flow channel cavity has a surrounding portion that divides the first flow channel cavity into an inner flow channel and an outer flow channel. The flow divider plate is provided with a first fluid inlet and a first fluid outlet. The water inlet is connected to the inner flow channel. The inner flow channel is connected to the first fluid inlet, and the first fluid outlet is connected to the outer flow channel. The first fluid outlet is connected to the inner flow channel, and the inner flow channel is connected to the guiding flow channel.

7. The heat exchange water cooling system integrating the pump cover and drive structure as described in claim 6, characterized in that: Ribs extend along the Y-axis on both sides of the enclosure, and the ribs are spaced apart. A sealing groove is recessed on the outer periphery of the diverter plate away from the end, the sealing groove is arranged in a closed loop, and the diverter plate is made of elastic material; The pump casing is provided with a sealing part that mates with the sealing groove. The sealing part extends into the sealing groove and elastically abuts against the flow divider plate.

8. The heat exchange water cooling system integrating the pump cover and drive structure as described in claim 1, characterized in that: The impeller includes a flat plate integrally formed with a permanent magnet and blades distributed circumferentially along the axis from the lower wall of the flat plate.

9. The heat exchange water cooling system integrating the pump cover and drive structure as described in claim 6, characterized in that: The pump casing has a slot at the upper opening, and a sealing ring is installed in the slot. The sealing ring elastically abuts against the cover plate.

10. The heat exchange water cooling system integrating the pump cover and drive structure as described in claim 7, characterized in that: The rib has baffles extending along the X-axis on both sides, and water passages are provided on both sides of the baffles.

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