Pulsation soaking plate type notebook computer radiator

Abstract

The invention discloses a pulsating soaking plate type notebook computer radiator which comprises a bottom plate, a pulsating channel is arranged on the bottom plate, a cover plate is arranged on the pulsating channel, the pulsating channel is of a closed air channel structure, a refrigerant is arranged in the pulsating channel, and the interior of the pulsating channel is of a negative pressure structure. Due to the fact that the pulsation channel is small enough, bubble columns and liquid columns are formed in the pulsation channel at intervals and are in a random distribution state, in a high-temperature area, refrigerants absorb heat to generate bubbles, expand and boost rapidly, the refrigerants absorbing heat are pushed to flow to a low-temperature area, the bubbles are cooled, shrunk and broken in the low-temperature area, and the pressure is reduced. Due to the fact that pressure difference exists between the two ends and pressure imbalance exists between the adjacent pulsation channels, refrigerants flow between a high-temperature area and a low-temperature area in an oscillating mode, heat transfer is achieved, in the whole process, external mechanical work and electric work do not need to be consumed, and self-oscillation is completely achieved under thermal driving.

Description

Technical Field

[0001] The invention belongs to the technical field of notebook computer radiators, in particular to a pulsating soaking plate type notebook computer radiator. Background Art

[0002] Since the advent of laptops, the cooling methods have gone through a process of fanless cooling, single fan cooling, fan plus plate heat sink, and finally fan plus temperature dispersion plate (copper VC) heat sink. The cooling technology has gradually evolved with the improvement of chip performance.

[0003] Based on performance and portability, laptops can be divided into business laptops and gaming laptops; based on body thickness and weight, they can be divided into ultrathin laptops and regular laptops. Regardless of the classification method, from the perspective of heat dissipation, we can divide them into fanless laptops and fan laptops (also known as passive cooling and active cooling). Currently, ultrathin laptops mostly use fanless cooling (low power consumption) or fan plus ultrathin plate / copper VC cooling (high power consumption); regular laptops (high-end business laptops, gaming laptops) mostly use fan + regular plate / copper VC cooling (high power consumption). As chip power consumption continues to increase, fan plus plate heat sinks are gradually unable to meet heat dissipation requirements, especially for gaming laptops, where heat dissipation power consumption has reached 180-240W. Copper VC heat sinks are currently one of the preferred cooling methods for high-performance laptops.

[0004] Although copper VC has a good heat dissipation effect, it also has two limiting factors that affect its large-scale use. The first is the heat transfer limit of VC, and the second is the manufacturing cost of VC. In terms of heat transfer limit, under conventional large sizes, the heat transfer capacity of two-phase heat exchange components with capillary force as the driving force is subject to the influence of capillary pressure difference. The capillary pressure difference is related to the capillary structure and refrigerant inside the component. Once the capillary structure and refrigerant are determined, its capillary heat transfer limit is a fixed value. The heat transfer limit of conventional copper VC ranges from 35W to 230W (different thicknesses have different heat transfer limits). Faced with notebook computer products with higher heat dissipation requirements (AI notebook computers), the use of copper VC is greatly restricted.

[0005] The manufacturing process of copper VC is complex, with as many as 25 or more steps from blank cutting to finished product shipment. At the same time, the number and cost of processing tooling involved in each process are high, resulting in a relatively high price for VC and a certain limitation on its use in consumer laptops. Summary of the Invention

[0006] In order to solve the problems raised in the above-mentioned background technology, the present invention provides the following technical solutions: a pulsating heat-spreading plate type notebook computer radiator, comprising a base plate, a pulsating channel is provided on the base plate, a cover plate is provided on the pulsating channel, the pulsating channel is a closed air channel structure, a refrigerant is provided in the pulsating channel, and the pulsating channel is a negative pressure structure, and cooling fins are provided on the back side of the base plate near both sides, and a low-temperature zone is formed at the position of the two cooling fins, and a high-temperature zone is formed between the two cooling fins. After the refrigerant is heated in the high-temperature zone, it can flow toward the low-temperature zone.

[0007] Preferably, the refrigerant exists in the pulsation channel in the form of discontinuous water columns.

[0008] Preferably, a fan installation opening is further provided on the bottom plate, a heat dissipation fan is further installed in the fan installation opening, and the heat dissipation fan is electrically connected to the laptop computer.

[0009] Preferably, an upper fixing block is provided in the fan installation opening, a rotating shaft is provided in the heat dissipation fan, the rotating shaft is inserted into the fixing block and can rotate in the fixing block, and the fixing block is fixed to the bottom plate through a support frame.

[0010] Preferably, an end block is fixedly connected to the end of the rotating shaft, and a slot is provided on the end block. One end of the rod body is inserted into the slot, and the other end thereof extends out of the end block, and a toggle block is fixedly connected to the other end of the rod body. A first spring is provided between the rod body and the end block. When the rotating shaft rotates, the rod body is subjected to centrifugal force and can slide in the direction of the protruding end block. A socket is provided in the support frame, and the insertion rod is inserted into the socket. A first gear set and a second gear set are provided in the fixed block, and the first gear set and the second gear set are respectively located on both sides of the insertion rod. The toggle block can toggle the first gear set and the second gear set so that the first gear set and the second gear set push the insertion rod to one side.

[0011] Preferably, there are multiple toggle blocks, and the toggle blocks are distributed in a circular array on the side of the rotating shaft. The toggle blocks can contact and transmit with the first gear set and the second gear set at the same time, and before the previous toggle block is completely separated from the first gear set / the second gear set, the next toggle block can contact with the second gear set / the first gear set.

[0012] Preferably, the lower end of the support frame is evenly provided with inclined grooves, and a brush is provided outside the insertion rod. The brush can pass through the inclined groove and extend downward. When the rotating shaft is in a stopped state and / or rotates at a low speed, the brush can contact the upper surface of the fan blade of the cooling fan. When the rotating shaft is in a high-speed rotation, the insertion rod is pushed to one side, so that the brush is separated from the fan blade.

[0013] Preferably, one end of the jack is an open structure, a second spring is provided on one end of the insertion rod, a blocking block is installed on the end of the second spring away from the insertion rod, and the blocking block is interference fit with the jack.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] When refrigerant is filled in the pulsating channel, since the pulsating channel is small enough, bubble columns and liquid columns will be formed in the pulsating channel, which are arranged at intervals and randomly distributed. In the high-temperature area, the refrigerant absorbs heat to generate bubbles, which rapidly expand and increase in pressure, pushing the refrigerant after absorbing heat to the low-temperature area. The bubbles in the low-temperature area cool, shrink and burst, and the pressure drops. Due to the pressure difference between the two ends and the pressure imbalance between adjacent pulsating channels, the refrigerant oscillates between the high-temperature area and the low-temperature area, thereby realizing heat transfer. In the whole process, no external mechanical work or electrical work is consumed, and it is completely self-oscillation driven by heat.

[0016] When the device is implemented, the surface of the fan blade can also be cleaned, thereby preventing a large amount of dust from adhering to the surface of the fan blade after long-term use. The cleaning method does not require manual participation, which is convenient for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0019] Figure 2 Schematic diagram of the back structure of the bottom plate of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the fan mounting port of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal top view of the fixing block and the supporting frame of the present invention;

[0022] Figure 5 Schematic diagram of the internal top view of the support frame of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of one side of the insertion rod of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the present invention when it has multiple layers of pulsating channels;

[0025] In the figure: 1. Base plate; 2. Cover plate; 3. Pulsation channel; 4. Fan mounting port; 5. Heat dissipation fins; 6. Cooling fan; 7. Rotating shaft; 8. Fixed block; 9. Support frame; 10. End block; 11. Rod body; 12. Toggle block; 13. First gear set; 14. Second gear set; 15. Bevel groove; 16. Brush; 17. Second spring; 18. First spring; 19. Block; 20. Insert rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Depend on Figure 1-7 The present invention discloses a pulsating heat-spreading plate-type notebook computer radiator, comprising a base plate 1, a pulsating channel 3 is provided on the base plate 1, a cover plate 2 is provided on the pulsating channel 3, the pulsating channel 3 is a closed air channel structure, a refrigerant is provided in the pulsating channel 3, and the pulsating channel 3 is a negative pressure structure, and cooling fins 5 are provided on the back side of the base plate 1 near both sides, a low-temperature zone is formed at the position of the two cooling fins 5, and a high-temperature zone is formed between the two cooling fins 5. After the refrigerant is heated in the high-temperature zone, it can flow toward the low-temperature zone.

[0028] When the computer is in use, the heat generated is conducted to the cover plate 2. The heated refrigerant inside the cover plate 2 absorbs heat and changes phase from liquid to gas. The unheated refrigerant remains in liquid state. Under the action of pressure difference, the vapor-liquid two-phase working medium is driven to flow from the high-temperature area of the pulsating channel 3 to the low-temperature area, and condenses and releases heat in the low-temperature area. The heat is conducted from the low-temperature area of the pulsating channel 3 to the heat sink fins 5, and finally transferred to the atmospheric environment through convection heat exchange between the heat sink fins 5 and the air.

[0029] The pulsating channel 3 can be single-layer or multi-layer. The single-layer or multi-layer pulsating channel 3 is processed by micromachining. The interface of the pulsating channel 3 is generally square or rectangular. The pulsating channel 3 is distributed in a serpentine curved closed shape or a topological structure closed shape. The single-layer or multi-layer pulsating channel 3 and the cover plate 2 are welded into a closed cavity by vacuum brazing or diffusion welding. After welding, the closed cavity is evacuated (or negative pressure), refrigerant is injected, and the pulsating heat sink is completed. The refrigerant categories are R134a, R245fa, R1234yf, R1233zd, R1233ze and other refrigerants. This patent refrigerant adopts but is not limited to the above categories.

[0030] When pulsating channel 3 is filled with refrigerant, because it is sufficiently small, bubbles and liquid columns are formed within it, spaced and randomly distributed. In the high-temperature zone, the refrigerant absorbs heat to form bubbles, which rapidly expand and increase in pressure, pushing the absorbed refrigerant toward the low-temperature zone. In the low-temperature zone, the bubbles cool, contract, and burst, causing the pressure to drop. Due to the pressure difference between the two ends and the pressure imbalance between adjacent pulsating channels 3, the refrigerant oscillates between the high-temperature and low-temperature zones, thereby transferring heat. This entire process requires no external mechanical or electrical work; it is entirely self-oscillating, driven by heat.

[0031] The refrigerant exists in the pulsation channel 3 in the form of discontinuous water columns.

[0032] A fan mounting opening 4 is also provided on the bottom plate 1 , and a cooling fan 6 is installed in the fan mounting opening 4 . The cooling fan 6 is electrically connected to the notebook computer and is powered by a USB socket.

[0033] An upper fixing block 8 is provided in the fan mounting opening 4. The cooling fan 6 has a rotating shaft 7 and fan blades. The rotating shaft 7 is inserted into the fixing block 8 and can rotate in the fixing block 8. The fixing block 8 is fixed to the base plate 1 via a support frame 9. When the cooling fan 6 is in use, the fixing block 8 can be used to easily fix the cooling fan 6, and the support frame 9 can be used to fix the position of the fixing block 8.

[0034] An end block 10 is fixed to the end of the rotating shaft 7, and a slot is provided on the end block 10. One end of the rod body 11 is inserted into the slot, and the other end thereof extends out of the end block 10, and a toggle block 12 is fixed to the other end of the rod body 11. A first spring 18 is provided between the rod body 11 and the end block 10. When the rotating shaft 7 rotates, the rod body 11 is subjected to the centrifugal force and can slide in the direction of extending out of the end block 10. A socket is provided in the support frame 9, and the insertion rod 20 is inserted into the socket. A first gear group 13 and a second gear group 14 are provided in the fixed block 8. The first gear group 13 and the second gear group 14 are respectively located on both sides of the insertion rod 20. The toggle block 12 can toggle the first gear group 13 and the second gear group 14 so that the first gear group 13 and the second gear group 14 push the insertion rod 20 to one side.

[0035] When the shaft 7 rotates, the rod body 11 and the toggle block 12 installed thereon will be affected by the centrifugal force, causing the rod body 11 to extend outward, and when the shaft 7 rotates to a certain speed (after the rotation is stable), the toggle block 12 can respectively contact and engage with the first gear set 13 and the second gear set 14, thereby causing the first gear set 13 and the second gear set 14 to rotate, and the first gear set 13 and the second gear set 14 can in turn toggle the insertion rod 20, thereby causing the insertion rod 20 to slide outward.

[0036] There are multiple toggle blocks 12, and the toggle blocks 12 are distributed in a ring array on the side of the rotating shaft 7. The toggle blocks 12 can contact and transmit with the first gear set 13 and the second gear set 14 at the same time, and before the previous toggle block 12 is completely separated from the first gear set 13 / the second gear set 14, the next toggle block 12 can contact with the second gear set 14 / the first gear set 13, thereby ensuring that the insertion rod 20 will not move back and forth during the rotation of the rotating shaft 7.

[0037] The lower end of the support frame 9 is evenly provided with inclined grooves 15, and a brush 16 is provided outside the insertion rod 20. The brush 16 can pass through the inclined groove 15 and extend downward. When the rotating shaft 7 is in a stopped state and / or rotates at a low speed (in the initial stage of rotation), the brush 16 can contact the upper surface of the fan blade of the cooling fan 6. When the rotating shaft 7 is in a high-speed rotation, the insertion rod 20 is pushed to one side, so that the brush 16 is separated from the fan blade.

[0038] In some embodiments, when the shaft 7 just starts to rotate, the lower end face of the brush 16 can contact the surface of the fan blade, thereby cleaning the surface of the fan blade. When the shaft 7 rotates to a certain speed, the brush 16 is blocked by the side wall of the inclined groove 15 and bends, thereby separating the brush 16 from the surface of the fan blade, avoiding the high-speed rotating fan blade from cutting the brush 16, and ensuring that the brush 16 can be used stably for a long time.

[0039] One end of the socket is an open structure, and a second spring 17 is provided on one end of the insertion rod 20. A block 19 is installed on the end of the second spring 17 away from the insertion rod 20. The block 19 is interference fit with the socket to facilitate the user to disassemble and assemble the insertion rod 20.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pulsating heat soaking plate type notebook computer radiator, comprising a bottom plate (1), characterized in that: The base plate (1) is provided with a pulsation channel (3), and a cover plate (2) is provided on the pulsation channel (3). The pulsation channel (3) is a closed air channel structure. A refrigerant is provided in the pulsation channel (3), and the pulsation channel (3) is a negative pressure structure. Heat dissipation fins (5) are provided on the back side of the base plate (1) near both sides. The two heat dissipation fins (5) form a low-temperature zone, and a high-temperature zone is formed between the two heat dissipation fins (5). After the refrigerant is heated in the high-temperature zone, it can flow toward the low-temperature zone.

2. The pulsating soaking plate notebook computer radiator according to claim 1, characterized in that: The refrigerant exists in the pulsating channel (3) in the form of discontinuous water columns.

3. The pulsating soaking plate notebook computer radiator according to claim 1, characterized in that: A fan mounting opening (4) is also provided on the bottom plate (1), a heat dissipation fan (6) is also installed in the fan mounting opening (4), and the heat dissipation fan (6) is electrically connected to the notebook computer.

4. The pulsating soaking plate notebook computer radiator according to claim 1, characterized in that: An upper fixed block (8) is provided in the fan installation opening (4), a rotating shaft (7) is provided in the heat dissipation fan (6), the rotating shaft (7) is inserted into the fixed block (8) and can rotate in the fixed block (8), and the fixed block (8) is fixed to the base plate (1) via a support frame (9).

5. The pulsating soaking plate notebook computer radiator according to claim 4, characterized in that: An end block (10) is fixedly connected to the end of the rotating shaft (7), and a slot is provided on the end block (10). One end of the rod body (11) is inserted into the slot, and the other end thereof extends out of the end block (10). A toggle block (12) is fixedly connected to the other end of the rod body (11), and a first spring (18) is provided between the rod body (11) and the end block (10). When the rotating shaft (7) rotates, the rod body (11) is subjected to the centrifugal force and can slide in the direction of extending out of the end block (10). The support frame (9) is provided with an insertion hole, and the insertion rod (20) is inserted into the insertion hole. The fixing block (8) is provided with a first gear group (13) and a second gear group (14). The first gear group (13) and the second gear group (14) are respectively located on both sides of the insertion rod (20). The shifting block (12) can shift the first gear group (13) and the second gear group (14) so that the first gear group (13) and the second gear group (14) push the insertion rod (20) toward one side.

6. The pulsating soaking plate notebook computer radiator according to claim 5, characterized in that: There are a plurality of toggle blocks (12), and the toggle blocks (12) are distributed in a ring array on the side of the rotating shaft (7). The toggle blocks (12) can simultaneously contact and transmit with the first gear set (13) and the second gear set (14), and before the previous toggle block (12) is completely separated from the first gear set (13) / the second gear set (14), the next toggle block (12) can contact with the second gear set (14) / the first gear set (13).

7. The pulsating soaking plate notebook computer radiator according to claim 5, characterized in that: The lower end of the support frame (9) is evenly provided with an inclined groove (15), and a brush (16) is arranged outside the insertion rod (20). The brush (16) can pass through the inclined groove (15) and extend downward. When the rotating shaft (7) is in a stopped state and / or rotates at a low speed, the brush (16) can contact the upper surface of the fan blade of the heat dissipation fan (6). When the rotating shaft (7) is in a high-speed rotation, the insertion rod (20) is pushed to one side, so that the brush (16) is separated from the fan blade.

8. The pulsating soaking plate notebook computer radiator according to claim 7, characterized in that: One end of the jack is an open structure, a second spring (17) is provided on one end of the insertion rod (20), a blocking block (19) is installed on the end of the second spring (17) away from the insertion rod (20), and the blocking block (19) is interference-fitted with the jack.

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