Heat exchange water cooling system with integrated pump cover and driving structure

Abstract

The pump cover and driving structure integrated heat exchange water cooling system comprises a pump shell and a cover plate, the pump shell is provided with an inner cavity, the upper end of the inner cavity is provided with an upper opening, the bottom wall of the pump shell is provided with a water cooling plate or a positioning plate, the cover plate is installed on the upper opening, the lower wall of the cover plate is provided with a waterproof layer, and the waterproof layer is provided with a waterproof layer. A sealing cavity is defined by the cover plate and the inner cavity, the sealing cavity is provided with an impeller installed in a pivoted mode, a permanent magnet is arranged on the horizontal plane of the impeller, and a magnetic induction coil is integrated on the cover plate and used for applying axial driving force to the permanent magnet and driving the impeller to rotate. The pump shell is provided with a water inlet and a water outlet, and the water inlet and the water outlet are formed in the side wall of the pump shell. And then through cooperation of the magnetic induction coils and the permanent magnets, axial driving can be effectively achieved, traditional radial driving is changed, the structure of the pump shell is effectively made to be simpler, mold design and mold stripping are more stable during injection molding, the production efficiency is improved, and meanwhile the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of computer water-cooling heat exchange systems, and in particular to a heat exchange water cooling system integrating a pump cover and a drive structure. Background Art

[0002] Computer water cooling refers to a commonly used liquid cooling system in computers that uses a liquid with a high specific heat coefficient (such as water) as a medium to remove heat from internal components. Computer water cooling generally offers the following advantages: minimal temperature fluctuations due to circulating cooling, effective temperature control of cooled components, and long-term stability and reliability. The use of a brushless electric pump reduces vibration and noise, and the overall assembly offers a sleek appearance and minimizes static electricity.

[0003] For example, Chinese patent CN202211202363.4 adopts a concave-convex structure on the guide plate to achieve the 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 there is no way to circumvent the existing concave-convex structure to achieve radial drive between the magnetic induction coil and the permanent magnet;

[0006] 2. In order to achieve the encapsulation or covering of electronic components, an additional shell needs to be provided, and its thickness will increase accordingly. Summary of the Invention

[0007] The main purpose of the present invention is to propose a heat exchange water cooling system with a pump cover and a drive structure integrated therein, aiming to improve the existing computer water cooling system, reduce its overall thickness and make its structure simpler.

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

[0009] A pump housing, wherein the pump housing is provided with an inner cavity, an upper end of the inner cavity is provided with an upper opening, and a bottom wall of the pump housing is provided with a water cooling plate or a positioning plate;

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

[0011] A permanent magnet is provided on the horizontal surface of the impeller, and a magnetic induction coil is integrated into the cover plate, and the magnetic induction coil is used to apply an axial driving force to the permanent magnet and drive the impeller to rotate;

[0012] The pump housing is provided with a water inlet and a water outlet, and the water inlet and the water outlet are arranged on the side wall of the pump housing.

[0013] In actual design, this application can be used as a water pump module alone or as a module integrating water pump and cold plate;

[0014] When used as a separate water pump module (i.e. the bottom wall of the pump housing is the positioning plate), the fluid enters the inner cavity through the water inlet, and then the magnetic induction coil of the cover plate drives the permanent magnet to realize the stator driving the impeller with the rotor to rotate, so that the fluid is discharged from the inner cavity to the water outlet;

[0015] When used as a module integrating a water pump and a cold plate, a water-cooling plate is provided on the bottom wall of the pump housing, so that after the fluid passes through the water-cooling plate in the inner cavity, it is driven directly by the impeller to flow out of the water outlet, or after passing through the guide plate, it is driven by the impeller to flow out of the water outlet, thereby achieving heat exchange;

[0016] The cover plate and the magnetic induction coil (i.e., the stator) are integrally formed and provided with a waterproof layer, which first reduces the overall thickness of the water pump.

[0017] Then, through the cooperation of the magnetic induction coil and the permanent magnet (i.e. the rotor), the axial drive can be effectively realized, which changes the traditional radial drive, effectively makes the structure of the pump housing simpler, and the mold design is more stable during injection molding, thereby improving production efficiency and reducing production costs.

[0018] Furthermore, the installation is also simpler, and there is no need to set up an additional outer cover on the stator. The cover plate can be coated with heat dissipation material or waterproof material or decorative layer in its entirety or in part, thus achieving structural integration and waterproof effect.

[0019] The design is an axial drive motor with an integrated stator and cover plate design, and a flat design, which effectively reduces the overall thickness of the water cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 Explosion of the present invention Figure 1 ;

[0022] Figure 3 Explosion of the present invention Figure 2 ;

[0023] Figure 4 This is a three-dimensional schematic diagram of the present invention after the pump cover and impeller are hidden;

[0024] Figure 5 This is a cross-sectional view of the shaft portion of the present invention;

[0025] Figure 6 It is a partial cross-sectional view of the water inlet of the present invention;

[0026] Figure 7This is a partial half-section schematic diagram of the water outlet of the present invention;

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

[0028] Figure 9 It is a three-dimensional schematic diagram of the diverter plate;

[0029] Figure 10 This is a schematic diagram of the magnetic induction coil when printing the PCB layer by layer;

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

[0031] Figure 12 This is a schematic diagram of the magnetic induction coil module and the plastic part being integrally injection molded.

[0032] In the figure,

[0033] 1 is the pump housing, 10 is the inner cavity, 11 is the upper opening, 12 is the lower opening,

[0034] 2 is a manifold, 21 is a first flow channel cavity, 210 is a surrounding portion, 211 is an inner flow channel, 212 is an outer flow channel,

[0035] 22 is the second flow channel cavity,

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

[0037] 31 is the water inlet, 32 is the water outlet, 33 is the gap,

[0038] 4 is a cover plate, 40 is a PCB board, 41 is a magnetic induction coil,

[0039] 5 is an impeller, 50 is a permanent magnet, 51 is a plane plate, 52 is a blade,

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

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

[0042] 81 is a sealing groove, 82 is a sealing portion,

[0043] 9 is a baffle, 90 is a water channel, 91 is a rib,

[0044] 100 is the water cooling plate / positioning plate, 101 is the heat dissipation strip, 102 is the heat dissipation slot,

[0045] 200 is a limiting groove, 201 is a bracket, and 202 is a frame body. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] like Figures 1 to 12 As shown, a heat exchange water cooling system with a pump cover and a drive structure integrated therein comprises:

[0050] A pump housing 1, wherein the pump housing 1 is provided with an inner cavity 10, an upper end of the inner cavity 10 is provided with an upper opening 11, and a 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-installation structure);

[0051] The cover plate 4 is mounted on 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] A permanent magnet is provided on the horizontal surface of the impeller 5, and a magnetic induction coil 41 is integrated into the cover plate 4. The magnetic induction coil 41 is used to apply an axial driving force to the permanent magnet and drive the impeller 5 to rotate;

[0053] The pump housing 1 is provided with a water inlet 31 and a water outlet 32 , and the water inlet 31 and the water outlet 32 are provided on the side wall of the pump housing 1 .

[0054] In actual design, this application can be used as a water pump module alone or as a module integrating water pump and cold plate.

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

[0056] When used as a module integrating a water pump and a cold plate, a water-cooling plate is provided on the bottom wall of the pump housing 1, so that after the fluid passes through the water-cooling plate of the inner cavity 10, it is driven directly by the impeller 5 to flow out of the water outlet 32 or passes through the guide plate and then driven by the impeller 5 to flow out of the water outlet 32, thereby achieving heat exchange;

[0057] The cover plate 4 and the magnetic induction coil 41 (i.e., the stator) are integrally formed and provided with a waterproof layer, 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), the axial drive can be effectively realized, which changes the traditional radial drive, effectively makes the structure of the pump housing 1 simpler, and the mold design is more stable during injection molding, thereby improving production efficiency and reducing production costs.

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

[0060] The design is an axial drive motor that adopts an integrated stator and cover plate 4, and a flat design, thereby effectively reducing the overall thickness of the water cooling system.

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

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

[0063] Specifically, each layer of magnetic induction coil 41 is provided with multiple turns, wherein the multiple turns may be in a circular shape, a spiral shape, etc., and may 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 may adopt a coil module, wherein the magnetic induction coil 41 may adopt a magnetic levitation magnet, thereby applying a magnetic driving force in the axial direction.

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

[0066] The upper end of the upper cavity 61 is provided with the upper opening 11, and the cover plate 4 is installed on the upper opening 11 and forms an upper cavity 63 with the upper cavity; the lower end of the lower cavity is provided with a lower opening 12, and the lower opening 12 is provided with the water cooling plate, and the water cooling plate and the lower cavity form a lower cavity 64.

[0067] The impeller 5 is pivotally mounted on 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] A conducting flow channel is provided in the middle of the partition 6 , and the conducting flow channel is used to connect the upper chamber and the lower chamber.

[0071] In the actual design, by directly setting the partition 6 on the pump housing 1, the length of the flow channel is extended, thereby improving the flow rate stability of the fluid, making the contact time between the water-cooled plate and the fluid longer to avoid flow distortion and the generation of bubbles.

[0072] At the same time, this design also reduces the distance between the stator and the rotor, making the drive more stable and reducing the loss of magnetic flux.

[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 matches 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 double-shaft structure can ensure the stable rotation of the impeller 5.

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

[0076] Of course, wear-resistant material may be provided between the upper shaft groove 71 and the lower shaft groove to achieve the movable shaft.

[0077] Specifically, the lower chamber is provided with a diverter plate 2.

[0078] The diverter plate 2 is used to divide the lower chamber into a first flow channel cavity 21 and a second flow channel cavity 22, and the lower wall of the second flow channel cavity 22 is the water cooling plate;

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

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

[0081] The water 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 in communication with the inner flow channel 211 , and the inner flow channel 211 is in communication with the conducting flow channel.

[0084] In the actual design, the fluid passes through the water inlet 31, the external flow channel 212, the first fluid inlet 23 of the water distribution plate, the second flow channel cavity 22 (i.e., between the water cooling plate and the diverter plate 2), the internal flow channel 211 until it enters the Daotong flow channel.

[0085] The stroke of the flow channel is effectively increased, thereby improving the flow rate stability of the fluid and increasing the fluid contact time.

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

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

[0088] The pump housing 1 is provided with a sealing portion 82 that matches the sealing groove 81 . The sealing portion 82 extends into the sealing groove 81 and elastically abuts against the diverter plate 2 .

[0089] Of course, specifically, the design of an external sealing ring can also be used.

[0090] By forming the sealing groove 81 and the manifold plate 2 into one piece, firstly, the assembly is simpler, and at the same time, by integrating the manifold plate 2 and the sealing groove 81, the sealing performance and stability are effectively improved.

[0091] Of course, the positions of the sealing grooves 81 and the sealing plates can also be swapped, and the number thereof 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 along the axial circumference 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 position of 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 sealing of the upper chamber.

[0094] Specifically, baffles 9 extending along the X-axis direction are provided on both sides of the ribs 91 , and water passages 90 are provided on both sides of the baffles 9 , further ensuring the stability of the fluid.

[0095] Specifically, the water inlet 31 extends obliquely downward 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 in the upper chamber away from the outer peripheral edge. The notch is arranged opposite to the drain outlet, thereby ensuring the stability of the fluid and reducing the problem of flow distortion.

[0097] Specifically, the water-cooling plate is provided with a heat dissipation bar 101 extending along the Y-axis direction. There are multiple heat dissipation bars 101 , and heat dissipation grooves 102 are provided between adjacent heat dissipation bars 101 , thereby increasing the contact area.

[0098] Specifically, a first fluid outlet is provided in the middle of the diverter plate 2.

[0099] First fluid inlets are respectively provided on both sides of the first fluid outlet, thereby ensuring stable water entry.

[0100] Specifically, the first fluid inlet and the first fluid outlet are in a strip shape, which achieves maximum space utilization within a limited space.

[0101] Specifically, a limiting groove 200 is provided on the outer side wall of the pump housing 1 , and the limiting groove 200 is used for installing a bracket 201 to facilitate installation.

[0102] Specifically, the bracket is composed of two stacked frames 202, which facilitates the installation of the water cooling plate on the CPU or graphics card and realizes the convenience of installation.

[0103] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A heat exchange water cooling system with a pump cover and a drive structure integrated, characterized in that: include: A pump housing, wherein the pump housing is provided with an inner cavity, an upper end of the inner cavity is provided with an upper opening, and a bottom wall of the pump housing is provided with a water cooling plate or a positioning plate; A cover plate is installed on the upper opening, a waterproof layer is provided on the lower wall of the cover plate, the cover plate and the inner cavity form a sealed cavity, and the sealed cavity is provided with a pivotally mounted impeller, A permanent magnet is provided on the horizontal surface of the impeller, and a magnetic induction coil is integrated into the cover plate, and the magnetic induction coil is used to apply an axial driving force to the permanent magnet and drive the impeller to rotate; The pump housing is provided with a water inlet and a water outlet, and the water inlet and the water outlet are arranged on the side wall of the pump housing; A partition is provided in the middle of the height direction of the pump housing, and the partition divides the inner cavity into an upper cavity groove and a lower cavity groove. The upper end of the upper cavity is provided with the upper opening, and the cover is installed on the upper opening and forms an upper cavity with the upper cavity; The lower end of the lower cavity is provided with a lower opening, 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 on the upper chamber, The upper chamber is connected to the water outlet. The lower chamber is connected to the water inlet; A conducting flow channel is provided in the middle of the partition, and the conducting flow channel is used to connect the upper chamber and the lower chamber.

2. The heat exchange water cooling system with a pump cover and a drive structure integrated as claimed in claim 1, characterized in that: The cover plate is a PCB board, and the magnetic induction coil is formed by printing the cover plate layer by layer or embedding the copper plate layer by layer; Each layer of magnetic induction coil is provided with multiple turns; The magnetic induction coil and the plastic are integrally injection-molded.

3. The heat exchange water cooling system with integrated pump cover and drive structure according to claim 1, 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 matching the lower shaft groove. The impeller is provided with a rotating shaft, and the rotating shaft is installed between the upper shaft groove and the lower shaft groove.

4. The heat exchange water cooling system with an integrated pump cover and drive structure as claimed in claim 3, characterized in that: The rotating shaft is fixedly arranged, the outer peripheral wall of the rotating shaft is sleeved with a bearing, and the impeller is arranged on the outer peripheral wall of the bearing.

5. The heat exchange water cooling system with integrated pump cover and drive structure according to claim 1, characterized in that: The lower chamber is provided with a diverter plate, The diverter 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 cooling plate; The first flow channel cavity is provided with a surrounding portion, and the surrounding portion divides the first flow channel cavity into an inner flow channel and an outer flow channel. The diverter 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 in communication with an inner flow channel, and the inner flow channel is in communication with the conducting flow channel.

6. The heat exchange water cooling system with an integrated pump cover and drive structure as claimed in claim 5, characterized in that: Ribs extend along the Y-axis on both sides of the surrounding portion, and the ribs are arranged at intervals; Baffles extending along the X-axis direction are provided on both sides of the ribs, and water passages are provided on both sides of the baffles.

7. The heat exchange water cooling system with a pump cover and a drive structure integrated as claimed in claim 5, characterized in that: A sealing groove is provided on the outer periphery of the diverter plate away from the end portion, the sealing groove is arranged in a closed loop, and the diverter plate is made of elastic material; The pump housing is provided with a sealing portion matched with the sealing groove. The sealing portion extends into the sealing groove and elastically abuts against the diverter plate.

8. The heat exchange water cooling system with a pump cover and a drive structure integrated as claimed in claim 1, characterized in that: The impeller includes a plane plate integrally formed with the permanent magnet and blades distributed along the axis circumference from the lower wall of the plane plate; The water inlet extends obliquely downward from the horizontal direction; The upper chamber is circular in shape, and a notch is provided in the upper chamber away from the outer edge, and the notch is arranged opposite to the drain outlet; The water-cooling plate is provided with a heat dissipation strip extending along the Y-axis direction. There are a plurality of heat dissipation strips, and heat dissipation grooves are provided between adjacent heat dissipation strips.

9. The heat exchange water cooling system with a pump cover and a drive structure integrated as claimed in claim 5, characterized in that: The pump housing is provided with a slot at the upper opening, a sealing ring is installed in the slot, and the sealing ring elastically abuts against the cover plate; A first fluid outlet is provided in the middle of the diverter plate. A first fluid inlet is provided on both sides of the first fluid outlet; The first fluid inlet and the first fluid outlet are in a strip shape.

10. The heat exchange water cooling system with a pump cover and a drive structure integrated as claimed in claim 8, characterized in that: The outer side wall of the pump housing is provided with a limiting groove, and the limiting groove is used for installing the bracket; The bracket consists of two stacked frames.

Images