TWI355049B - - Google Patents

Description

1355049 VI. Description of the Invention: • Technical Field to Which the Invention Is Enclosed The present invention relates to a liquid cooling jacket for cooling a heat generating body such as a CPU. [Prior Art] In recent years, with the increase in performance of electronic devices represented by personal computers, the heat generated by the CPU (heat generating body) that is being mounted has increased, and the CPU's cold appeal has become increasingly important. In order to cool the CPU, it is known to use an air-cooling fan-type heat sink. However, the problem of the fan noise or the cooling limit of the air cooling method is the case of the book (cl〇se_up). Generation cooling methods, liquid-cooled ferrules (also known as water-cooled ferrules, liquid-cooled modules) are noticed. In the above-mentioned technique, for example, in Patent Document 1, a liquid-cooling jacket in which a metal pipe having an inlet port and a discharge port is provided in both ends is formed in a serpentine shape. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 In the case of a liquid-cooled jacket, if the flow path through which the cooling water flows is one, the pressure loss of the cooling water becomes large. As a result, not only is it impossible to efficiently cool the CPU', but there is a problem that the output of the pump that supplies the cooling water must be increased. In order to solve the above problems, the present invention provides a liquid cooling jacket g capable of efficiently cooling a heat generating body such as a CPU. As a means for solving the above-mentioned problems, the present invention is a heat transfer fluid in which a heat generating body is attached to a predetermined position, heat generated by the heat generating body is supplied from an external supply fluid supply device, and is transmitted to the inside of the flow. a liquid cooling jacket comprising: the heat transfer fluid supply device side (four) - a flow path; a second flow path group consisting of a plurality of second flow paths diverging from the first flow path; and a second plurality in the plural The downstream side of the flow path is a third flow path in which the plurality of second flow paths are combined; wherein the heat generating body is mainly used for heat exchange in the first flow path group. According to the liquid cooling jacket H of this type, the heat transport flow system from the external heat transfer fluid supply device is supplied to the first flow path. Next, it flows in the order of the second flow path group 'the third flow path. X. The heat generated by the heat generating body is mainly transmitted to the heat transfer fluid by heat exchange by the second flow path group. As a result, the heat generating system is appropriately cooled. Here, the i-th flow path group is formed from the complex_second flow path in which the first flow path is branched. 'Because the plural second flow path is in the third flow path set, the second flow path is formed as one In the case of the serpentine shape of the branch, the length of the second flow path is greatly shortened. By this, the "one force loss" of the second flow path of the plurality of flow paths is substantially smaller than the pressure loss of the heat transfer fluid of the second flow path of the long flow path length of the above-mentioned branch. Further, the adjacent second flow path in the present invention is not completely isolated as in the second flow path prevention 3, 653 of the liquid cooling jacket S J6 of the sixth embodiment to be described later (refer to Fig. 26). also may.

Therefore, according to such a liquid-cooled jacket oil supply I supply fluid supply device (for example, temporarily use a small external hot clothes to set C, for example, a pump), the cold jacket g is circulated, and can be divided into right, ", ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The fluid supply device is supplied and transmitted to the liquid cooling jacket of the first body, and is directed toward the downstream side package = the first path, and the second flow composed of the plurality of second flow paths. The road group is first; the heat in the sputum is heat exchanged, and the adjacent chambers are connected to each other. The U-flow group is connected in an in-line via the connecting channel. The second-flow road group includes a portion of the plural second-flow group group road group, and the LA-collapsed liquid cooling jacket is arranged. According to this type of liquid cooling set, the second flow path of the plural is connected: the level is connected by the flow path to the inline number - $路# . . Λ丨•·路群部), which can be in the plural Heat exchange between the group and the heat generator. (4) The downstream end of the second flow path group and the other upstream end are on the same side. That is, the liquid cooling jacket of the adjacent side of the second one mountain road group is simultaneously, the lower jaw of the square, and the upper stream of the other side are on the same side. The liquid-cooled jacket, the thermal method, the s-person supply 々丨L system in the machine-through direction of the heat exchange fluid via the adjacent second flow path hip adjacent to the other of the second flow path group, phase, ρ ^ . The way to circulate. Therefore, when the size of the liquid cooling jacket g appears to the spleen, the number of the second material of the second flow group is changed to the number of the first forks to increase the number of the second flow path group, U^!) U49 constitutes each The flow path of each of the second flow paths of the second flow path group reduces the Leille product flowing through the liquid cooling jacket. When the flow rate of the heat transfer fluid of #匣 is increased, the number of the second flow path group becomes large, and in the first case, the flow velocity in each of the second flow paths becomes large. Therefore, since the fluid of the rim fluid is sucked from the liquid cooling jacket to the hot wheel, the pumping rate is increased, and as a result, the heat resistance of the liquid cooling jacket S is lowered. ' 'The adjacent second flow path groups are not arranged in parallel. For example, in the flow path direction, the number of the four flow path groups is large, and the number of the four flow path groups forms the first of each of the first flow path groups. - The length of the flow path of the smashing of the valley is only shortened, ... the area of the J is constant. The flow rate of the heat exchange fluid does not decrease. In other words, when the number of the second flow path groups is an even number, the inlet and the outlet of the heat transfer fluid toward the liquid cooling jacket can be disposed on the same side, and as a result, the treatment of the pipes connected to the liquid cooling jacket becomes changed. It's easy. Further, a bundle of tubes made of a plurality of metal tubes is provided, and the hollow portion of each tube is the second flow path. The liquid cooling jacket E of this type is a tube bundle 'contained by a plurality of metal tubes, and the hollow portion is the second flow path, so that the liquid cooling jacket can be easily formed. In addition, the number and thickness (flow path sectional area) of the second flow path can be easily changed by appropriately changing the number, thickness, and the like of the metal pipe to be bound. Further, a metal pipe having a plurality of hollow portions is provided, and each of the hollow portions is the second flow path. According to such a liquid-cooled jacket, a liquid-cooled jacket can be easily constructed by using a metal pipe having a plurality of hollow portions. 1355049 Further, a plurality of metal fins (fin) arranged at predetermined intervals are provided as a second flow path between adjacent fins. According to such a liquid-cooled jacket, heat from the heat generating body can be transmitted to the heat transfer fluid flowing through the second flow path via the plurality of fins by using the adjacent fins as the second flow path. . Further, the width W of the second flow path is 〇.丨.〇mm. According to such a liquid-cooled jacket, the heat resistance and the pressure loss by the internal heat transfer fluid can be regarded as a good range. Further, the width w of the second flow path and the thickness τ of the fin between the adjacent second flow paths satisfy the following formula (1): - 〇 · 375 X w + 〇.875 S τ / wg - 1.875 XW + 3.275 ... (1). According to such a liquid-cooled jacket, the heat resistance becomes small. Between the heat generating body and the heat transfer fluid, heat exchange is favorably performed. Further, the depth D and the width w of the second flow path satisfy the following formula (2): 5 X W + 1 $ d S 16 · 25 X W + 2. 75 (2). According to such a liquid-cooled jacket, the heat resistance is small, and heat exchange is favorably performed between the heat generating body and the heat transfer fluid. Further, the present invention includes: a fin element including a plurality of metal fins and a substrate in which the plurality of metal fins are erected; and a ferrule body that receives the chip element; the substrate is attached The above-mentioned sleeve body can be fixed in a hot parent exchange manner. In the liquid-cooling jacket of this type, for example, a metal extruded member including a bottom plate constituting the substrate and a plurality of fins on which the bottom plate is erected is cut, and the above-mentioned plural is produced. After the fin 7 1355049 element of the metal fin, the liquid element can be formed by fixing the fin element, for example, to the box-shaped ferrule body. Further, for example, by forming a plurality of grooves in a metal block, a fin element having a plurality of metal fins can be produced. Furthermore, the present invention includes a first fin element including a first substrate and a plurality of first fins erected on the first substrate, and a second fin element including a second substrate and the a plurality of second fins on which the second substrate is erected, wherein the first fin element and the second fin element system, the plurality of first fins and the plurality of second fins are combined as intermeshing The plurality of fins made of the metal are formed by the first fin and the second fin, and the second flow path is between the adjacent first fin and the second fin form. Because such a liquid-cooled jacket is such that the plurality of first fins and the plurality of second fins are in mesh with each other, even if the first fins are spaced apart from each other and the second fins are spaced apart from each other, adjacent ones may be adjacent. The % of the metal fins, that is, the interval between the first fins and the second fins is narrowed. Further, the heat generating system is mounted on the first substrate side, and the dog length of the first fin is set to be the same as or shorter than the protruding length of the second fin. The plural second and the first The substrate is thermally connected. The liquid cooling jacket E of this type is formed by the protruding length of the first fin and

The plurality of second fins and the protrusions of the sheets may be elongated, and the second fins may be joined by heat exchange on the first substrate of 1355049. Further, the heat of the heat generating body mounted on the first substrate side is transmitted to the plurality of first fins and the plurality of second fins via the first substrate. The heat system of the person can be transmitted to the heat transfer fluid of the second flow path between the first Korean film #二赵片. Moreover, the present invention includes: a ferrule body that accommodates the fin-receiving chamber of the plurality of metal fins; and a sealing body that seals the fin accommodating chamber; a peripheral wall of the ferrule body that surrounds the fin accommodating chamber, and the While the fitting portion between the sealing bodies is friction stir welded, the beginning and the end of the friction stir welding overlap. According to such a liquid-cooled jacket, the peripheral wall of the casing body and the sealing body can be well joined by overlapping of the starting end and the terminal end in the friction stir welding. Thereby, the heat transfer fluid is less likely to leak to the outside. Further, since the sealing body and the nest body are joined by friction stir welding without using a welding material, there is no fear that the heat transfer fluid (refrigerant) is contaminated by the welding material or the like, and there is no fear of constituting the liquid cooling system. A machine such as a micro pump or a radiator is corroded by a welding material or the like. Further, the plurality of metal fins are erected on the sealing body and integrated with the sealing body. According to such a liquid-cooled jacket, a plurality of metal tabs and a sealing body are integrated, the fin housing chamber is sealed with a sealing body, and a plurality of metal fins can be disposed in the fin housing chamber. The established location. That is, not only can the production of the liquid-cooled ferrule be reduced, the production can be easily performed, and the production cost can be reduced. Further, in this manner, a plurality of metal fins and a sealing body are a 1355049-body object 'for example, as described in the fifth embodiment to be described later', by scraping a plate (plate material) made of a smelting alloy. Processed and obtained. Further, in the case where the fins and the sealing body are integrally formed by the scraping process or the like, it is of course unnecessary to join the fins and the sealing body with a welding material or the like, thereby preventing contamination of the heat transfer fluid or the like. Moreover, since the fin and the sealing body are integrated, the heat transfer between the two is high. Therefore, when the heat generating body such as the CPU is mounted on the carpet body, the heat of the heat generating body is satisfactorily transmitted to the plurality of fins via the sealing body. As a result, the heat generating property of the heat generating body in the liquid cooling nesting becomes high. Δ Further, the peripheral wall is deformed in the outer side T, and is joined to the jig by the friction stir welding while the peripheral wall abuts against the jig. According to the liquid cooling jacket s of this type, the frictional mixing is performed on one side of the peripheral wall against the jig, and the circumferential wall is not easily changed on the outer side by friction stir welding. Further, as described above, the distance between the outer peripheral surface of the shoulder (shQulder) and the outer peripheral surface of the peripheral wall (for example, in the 20 mm of the outer peripheral surface of the shingle used in the friction stir joining joint, such as 'at 20 mm', is thin. Hereinafter, the circumferential deformation 'can be used for friction stir welding. The length of the pin is also 60% or less of the thickness of the sealing body used in the friction stir welding. According to the 60% of the thickness of the liquid-cooling jacket g seal of this type, the fin accommodation chamber side is not easily deformed. Become smaller. By the length of the pin of the tool being friction-mixed in the above-mentioned close, the sealing body can prevent the volume of the fin accommodating chamber, and the pulling-out position of the tool in the friction stir welding is 1355049 from the above-mentioned cooperation. The department was removed. According to such a liquid-cooled ferrule, the drawing of the pin which is inserted from the above-mentioned fitting portion by the pulling-out position of the tool is not formed at the fitting portion. Thereby, the sleeve body and the sealing body can be suitably joined. Further, a honeycomb honeycomb body having a plurality of fine pores is provided, and the pores are the second flow passages. According to such a liquid-cooling jacket, by using the pores of the honeycomb body as the second flow path, the heat of the self-heat generating body can be transmitted to the heat transfer fluid flowing through the second flow path via the honeycomb body. Further, "having: a heat exchange sheet made of a metal having a corrugated cross section; and a metal ferrule body fixed to the heat exchange sheet by heat exchange; wherein between the heat exchange sheet and the sleeve body, The second flow path described above is formed. According to such a liquid-cooled jacket, the heat exchange sheet having a corrugated cross section can be easily fixed by heat-exchangeable fixing of the sleeve body. Further, the above metal system is Ming or Shao alloy. According to such a liquid-cooled jacket, it is lightweight by using a metal as aluminum or an aluminum alloy. Further, the inlet port of the heat transfer fluid that communicates with the first flow path and the discharge port of the heat transfer fluid that communicates with the second flow path are symmetrically arranged around the heat generating body. According to such a liquid cooling jacket, the heat transport flow system supplied from the inlet port to the first flow path facilitates the circulation of the second flow path in the vicinity of the heat generating body. Thereby, the heat transfer fluid can be exchanged between the heat generating body and the heat generating body, which is suitable for heat exchange '1355049. Further, the inlet port and the discharge port are disposed relatively far apart. According to such a liquid-cooled jacket, the heat transport flow system supplied from the inlet port to the first flow path can facilitate the entire flow of the plurality of second flow paths. Thereby, heat exchange can be suitably performed between the heat transfer fluid and the heat generating body of the entire second flow path. Further, the inlet port and the discharge port are disposed to be relatively close to the heat generating body. According to such a liquid-cooled jacket, the heat transport flow system supplied from the inlet port to the first flow path makes it easy to flow the second flow path in the vicinity of the heat generating body at a rapid flow rate. Thereby, heat exchange between the heat transfer fluid and the heat generating body flowing at the rapid flow rate can be suitably performed. That is, for example, a heat generating system such as a CPU does not pass through a heat diffusion sheet 102 (refer to FIG. 3) called a heat spreader, and is installed in a liquid cooling jacket, and heat of the heat generating body is hard to be transmitted. When the entire liquid cooling jacket is reached, the heat transfer fluid can be efficiently radiated by flowing the second flow path in the vicinity of the heat generating body at a rapid flow rate. Further, the above heat generation system is a CPU. According to this type of liquid-cooled ferrule, heat is efficiently exchanged between the CPU and the heat transfer fluid to cool the CPU. According to the present invention, it is possible to provide a liquid cooling jacket that efficiently cools a heat generating body such as a CPU. [Embodiment] 12 丄05〇49. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. <<First Embodiment>> First, the liquid cooling system and the liquid cooling jacket relating to the first embodiment will be described with reference to Figs. Fig. i is a configuration diagram of the liquid cooling system relating to the first embodiment. Fig. 2 is a perspective view showing the entire liquid cooling jacket of the first embodiment. Fig. 3 is an overall perspective view from the lower side of the liquid cooling jacket of the first embodiment. Fig. 4 is a perspective view showing the liquid cooling jacket of the first embodiment, showing a state in which the cover unit is omitted. Fig. 5 is a plan view showing the liquid-cooling jacket of the first embodiment, omitting the inlet pipe and the discharge pipe. Fig. 6 is a cross-sectional view of the liquid cooling jacket of the first embodiment shown in Fig. 2; Fig. 7 is an exploded perspective view showing the liquid cooling jacket of the first embodiment. Fig. 8 is a graph schematically showing the effect of the liquid-cooling jacket of the first embodiment. <<Configuration of Liquid Cooling System>> As shown in Fig. 1, the liquid cooling system S1 of the first embodiment is a system of φ mounted on a personal computer body 120 (electronic device) of a tower type personal computer. A system for cooling a CPU 热 (heat generator) constituting the body of the personal computer. The liquid cooling system S1 mainly includes: a liquid cooling jacket J1 in which the CPU 1 〇1 is installed at a predetermined position (refer to FIG. 3); and a heat radiator 121 that discharges heat transferred from the cooling water (heat transfer fluid) to the outside (heat release) a micro-pump 22 (heat transfer fluid supply device) that circulates cooling water; a reserve tank 123 that absorbs expansion/contraction of cooling water according to temperature changes, and a curved hose 124 that connects these; Deliver hot cooling water. As the cooling water, for example, ethylene glycol (ethylene gluc〇i) 13 丨 1355049 is used; In the case of the cooling water circulation, these machines are also operated by the micro-pull 122. <<Composition of Liquid Cooling Cartridge>> Next, the liquid cooling jacket constituting the liquid cooling system S1 will be described in detail; As shown in Figs. 2 and 3, the liquid cooling jacket gJ1 is attached to the center (the predetermined position) of the lower side (inside side) of the liquid cooling jacket gJ1 via thermal diffusion, and the 1〇2 (heat diffuser) cpu 101 is broken. In this way, in the state where the CPU 1〇1 is installed, the water circulation liquid is used to cool the J1 β, and the liquid cooling system causes the CPU 101 to generate heat while being heated by the internal cooling water. In exchange, the heat received from the CPU 101 is transmitted to the cooling water, and as a result, (10) (8) is efficiently cooled. Further, the 'heat-diffusing sheet 1〇2 is a sheet for efficiently transferring the heat of (10) ιι to the bottom wall U of the sheath body 1〇 to be described later, and is formed of, for example, a metal having high thermal conductivity such as copper. . Such a liquid-cooled jacket J1 is mainly composed of a sleeve E body 1 , a flat tube bundle 20 (tube bundle), and a lid unit 30 as shown in Figs. 4 to 7 . The sleeve E, the flat tube bundle 20, and the lid unit 3 are formed of a metal or a metal, unless otherwise specified. Thereby, the liquid cooling jacket J1 is lightened and easy to install. The casing of the shallow bottom of the casing body 1 is the bottom wall 11 and the peripheral wall 12, and the inside thereof is provided with a storage chamber for accommodating the flat tube bundle 20 (refer to 7)). Such a sleeve body 10 is, for example, a part of the opening edge of the body 1 by a scale (die-casting), casting, forging, etc., corresponding to 1355049 The shape of the notch portion 31c of the cap body 31 to be described later is a flat tube bundle> a position matching portion 14 having a meandering shape. The flat official beam 20 is placed in the casing body 1〇, and the space 10a and the space 1 are separated (the hole is broken at the both ends thereof and not the work room 10c (refer to Figs. 4 and 5).

In the case of the fourth alloy, the heat is exchanged (heat-moving), and it is joined and fixed (refer to the second one: the function of the first-flow channel A1, space 1 (^ as the first The function of the path C1. As a second flow of the flat tube bundle 20, a predetermined number of flat tubes 21 are bound at their thicknesses 'joined objects (refer to Figures 6, 7). Each flat tube has one or more (in In the first embodiment, the two hollow portions ^, ▲ and 'the hollow portions 21a are the second flow paths of the cooling water flowing, that is, the cross sections of the second flow paths Bla are rectangular. The side wall portion (the second house configuration portion) formed by the peripheral walls 21b and 21b of the flat tubes 21 on both sides thereof and the upper wall portion formed by the peripheral wall m or the partition wall "two on the upper and lower sides" ( The second flow path constituting portion) or the lower wall portion (second flow path constituting portion) is surrounded. Therefore, the flat tube bundle 2() has a second flow path having a plurality of second flow path cores The second flow path group formed by Bla is here, and the CPU 101 is approximately the center of the lower side (outer side) of the bottom wall 如 as described above. The heat is transmitted through the bottom wall 11 to the peripheral wall 21b of the hollow portion 21a (second flow path Bia) surrounding the flat tubes 21, and the separation phase. The partition wall 21c of the adjacent hollow portion, and the heat transmitted to the peripheral wall 21b and the partition wall 21c (heat exchange portion) are transferred to the cooling water flowing through each of the second flow paths B1a. Water heat exchange....The cooling of the part of the second flow path group B1 is hunted by the plurality of flat tubes 21 and constructed from the CPU of the CPU. The direct heat exchange of the peripheral wall 2lb (hot father change) is added, and the heat exchange can be performed at (10). Thereby, the CPU 101 can be efficiently cooled efficiently between W...D &quot; water. H1, 1 way a second flow path group (a plurality of second flow paths), a third flow path] a description of the first flow path A1, the second flow path of the second flow path Bla), and a third flow path Cle group called the plural first flow line w The flow path for supplying the cooling water by the micro pump 122 is disposed on the side of the micropus 122 (the upstream side of the second flow path group B1). The second flow path group B1 is first. The downstream side of the road A1 is disposed, and the second flow path Bla of the second flow path group β1 is divided from the first flow path A1. The cold water is distributed from the first flow path A1, and flows into the second flow. The manner of the flow path B1 a. The first machine path ci is disposed on the downstream side of the second flow path group B1 (that is, the plurality of second flow paths B1a), so that a plurality of second flow paths are integrated. The cooling water flowing out from the second flow path Bla is formed in the liquid cooling jacket after the third flow path π is collected. The flow path sectional area of the first machine A1 and the third flow C1 is It is set to be larger than the flow path sectional area of each of the second flow paths Bla. The flow path length of each of the second flow paths (the length of each of the flat tubes 21) is greatly shortened for one flow path through all the meandering portions of the flat tube bundle 20 corresponding to the related art. 1355049 Therefore, the pressure loss caused by the cooling water in the order of the first flow path A1 and the second flow path Bla' method is hardly occurred in the following: the path 1 and the third flow path C1, in the second flow Road Bia, the pressure loss on the flow path from the line to the line is greatly reduced. By this, the miniaturization of the micro-push 122 of the cooling water is supplied to the cooling water, and the noise is reduced. <cover unit>

The cover unit 30 mainly includes a cover entry pipe 32 and a discharge pipe 33 as shown in Fig. 7. [Cap body] The cap body 31 is joined and fixed to the ferrule body 1 by a ferrule body ι that accommodates the flat tube bundle 2 as a cover. In the cap body 31, an inlet port 31a that communicates between the first flow path A1 (space 1A) and a discharge port 31b that communicates with the third flow path (space 10c) are formed (refer to Fig. 7). Further, the cover main body 31 has a shape in which the notch portion notch portion 31c which is a notch is formed in conformity with the position fitting portion 14 of the main body 1''. Thereby, the cap body 31 (cover unit 3) is combined with the nest body 1 in only a predetermined direction. (Inlet port, discharge port) The inlet port 31a and the discharge port 31b are arranged as shown in Fig. 5, and the CPU 101 is arranged in a point symmetry with respect to the center as viewed from the plane. In other words, the inlet 31a and the discharge port 31^101 are arranged on the diagonal line of the liquid cooling jacket η which is square in front. The S 'into population 31a, which is described again, is arranged on the lower left side of the fifth figure, and is arranged on the lower side of the line, and the square side is placed on the right side 31a and the discharge port gib in the fifth figure. The approximate middle position (in the case of the liquid cooling jacket 11 J1), CPU 1〇1 configuration. Therefore, the cooling water from the inlet pipe 32 is supplied to the entire second flow path group B1 (the entirety of the plurality of second flow paths Bla) via the inlet port 31a and the first flow path A1'. In addition, the entire cooling water flowing through the entire second flow path group B1 and the #CPU 1G1 are efficiently cooled by the second flow path B1 a of the eight-person self-complexing number. After the collection of the path ci, the discharge port 31b and the discharge pipe 33 are discharged to the outside of the liquid cooling jacket J J1. [Inlet Tube, Discharge Tube] The entry panel 32 is fixed to the lid body 31. In the inlet pipe 32, the curved hose 124 communicating with the micro-pull 122 (refer to FIG. 1) on the upstream side of the liquid-cooling jacket J1 is connected to the cooling water system of the micro-pump 122 via the inlet pipe 32. The hollow portion and the inlet port 31a are supplied to the first flow path M. The discharge pipe 33 is fixed to the cover body 31. In the discharge pipe 33, the arm hose 124 communicating with the radiator 121 (refer to Fig. 1) on the downstream side of the liquid jacket 11 J1 is connected. In addition, the cooling water collected in the third flow path ci passes through the discharge port 31b and the hollow portion of the discharge pipe 33, and is discharged to the outside of the liquid cooling jacket J1. The inlet pipe 32 and the discharge pipe 33 are fixed in an upright state on the upper surface side of the cover body 31. Thereby, the curved hose 18 1355049, that is, the liquid cooling system 124 124 can be connected to the inlet pipe 32 and the discharge pipe 33 only by the upper side of the liquid cooling jacket j1. In the PC main body 120 that is also restricted in space (refer to the figure!), the function of the liquid cooling jacket is shown in the bending hoses 124 and 124 (refer to the figure) connected to J1. The effect of the cold set 匣n. When the power of the personal computer main body 120 (Fig. 1) is turned "ON", 〇 1 is activated, and the heat starts. Further, the heat of the CPU i Q i is transmitted to the bottom wall u of the main body 1 via the heat diffusion sheet 102, and is mainly transmitted to the peripheral wall gib and the partition wall 21c of the flat tubes 21 constituting the flat s bundle 20. On the other hand, in conjunction with the ON of the power supply of the personal computer body 120, the micro-switch 22 is actuated to cool the water circulation. In this case, in the liquid cooling jacket 匣, the cooling water flows in the order of the first flow path A1, the second flow path group B1 (the plural second flow path B1 a ), and the second flow path c 1 . Further, heat is exchanged between the peripheral wall 2ib of the flat tubes 21 and the partition wall 21ε and the cooling water of each of the second channels Bla, and the heat transmitted to the CPU 101 of the peripheral wall 21b and the partition wall 21c is transmitted (moved) to the cooling. Water, cooling water is heated. Then, the cooling water heated by the second flow passage B丨a is collected in the third flow passage C1, and then discharged to the outside of the liquid cooling jacket via the discharge port 31b and the discharge pipe 33. The heat of the cooling water supplied to the radiator 132 in the radiator 121 is exothermic by the curved hose 124. Further, the cooling water having a lowered temperature is supplied to the liquid cooling jacket 经由 after the micro-fluid 122 flows through the storage tank 123 and the bending hose 124. 19 1355049 Thus, by (1) from 0卩11101 toward the heat diffusion sheet 1〇2, the bottom wall 1〇1, the heat transfer of the peripheral wall 21b of each flat tube 21 and the partition wall 21c, (2) from the peripheral wall 21b and The heat transfer of the partition wall 21c toward the cooling water, and (3) the heat release of the cooling water in the radiator 121 are continued, and the cpu 1〇1 is efficiently cooled. Further, the heat of the CPU 101 is dispersed and transmitted to the peripheral wall 21b of the plurality of flat tubes 21 and the blade partition 21c, and the heat of each of the peripheral walls 2ib and the partition wall 21c is transmitted to the cooling water flowing through the respective second flow paths Bla, which is efficient. Cooling the CPU 101, the cooling water supplied to the liquid cooling jacket J1 is in the liquid cooling jacket, and the flow path length is short through the first flow path Ai having a large cross-sectional area of the flow path, and is mainly distributed as heat. After the exchange of the plurality of second flow paths Bla (second flow path group B1), the pressure of the cooling water is received in the liquid cooling jacket J1 because the third flow path C1 having a large cross-sectional area is discharged. The loss becomes smaller. Thereby, the micro pump 12 2 can be miniaturized, and the application range of the liquid cooling system s 1 can be widened. Further, according to such a liquid-cooled jacket J1 (the present invention), as shown in Fig. 8, a conventional liquid-cooled ferrule (a conventional product) having a longer meandering second flow path is used. Low pressure loss and high flow rate allow the cooling water to circulate. That is, as shown in Fig. 8, the intersection of the pressure loss-flow curve of a micro-pump and the flow curve of the conventional product Μ1, the above-mentioned pressure loss-flow curve and the intersection with the flow curve of the present invention The Μ 2 system is shifted at the lower right side, and according to the liquid cooling jacket ! j! (the present invention), it can be seen that the pressure loss is small and the flow rate is high. "Manufacturing method of liquid-cooled jacket" 1355049 Main reference Production of flat fixed flat Next, the production (manufacturing) method of liquid-cooled sleeve n η, Figure 7 illustrates. The liquid cooling jacket HJi manufacturing method mainly includes: the first project of Guandong 20; and the second project of the H10 joint pipe bundle 20 in the sleeve. <First Engineering> A plurality of flat tubes 21 are joined by an appropriate means. Secondly, the two ends of the restraint are cut and grounded to the bundle 20. Flattening <Second Project> The flat tube bundle 20 can be exchanged and fixed at a predetermined position of the bottom wall n of the sleeve E body 1 by a suitable means (4)-Sn or the like (flux). When the flat tube bundle 2Q is fixed to the money body iq, the above-described space i〇a (the first flow path A1) and the space 10c (the third flow path π) are secured on both end sides of the flat tube bundle 20. Thereafter, the inlet pipe 32 and the discharge pipe 33 are joined and fixed to the casing main body 1 by a suitable means by a cover main body 31 fixed at a predetermined position. Thereby, a liquid cooling jacket can be obtained. Further, after the cover main body 31 is fixed to the ferrule body 10, the inlet pipe 32 and the discharge pipe 33 may be fixed to the cover body 31. Thus, according to the manufacturing method of the liquid cooling jacket 有关 according to the first embodiment, the plurality of flat tubes 21 are used as the flat tube bundle 20, and the flat tube bundle 20 is fixed to the ferrule body 1 〇 by the simple fixing of the cap body 31. For engineering, a liquid cooling jacket 匣j 1 can be obtained. <<Second Embodiment>> Next, regarding the liquid-cooling jacket of the second embodiment, reference is made to Figs. Fig. 9 is a perspective view showing the entire liquid cooling jacket (four) of the second embodiment, showing a state in which the cover unit is omitted. First. The figure is a γ-γ cross-sectional circle of the liquid-cooled jacket of the first embodiment of the ninth chart. As shown in Fig. 9'10, the liquid cooling jacket of the second embodiment replaces the flat tube bundle 2 of the liquid cooling jacket of the first embodiment. And = flat = bundle 23 as a feature. The outer shape of the flat tube bundle 23 is the same as that of the flat tube bundle 2G of the first embodiment, and the flat tubes are formed by a plurality of flat tubes (three in the ninth, first, and three figures). Each of the flat &quot;24 series has a plurality of hollow portions W in the ninth and tenth views, and each hollow portion 24a serves as a second flow path. As a result, the flat ridge: the official bundle 23 The second flow path group having a plurality of second flow paths is used here because the flat tubes 24 are in a thin plate shape, and the number of the hollow portions 24a in the inside is (1 (solid) in Fig. 9) More than the number (two) of the hollow portions formed in the flat tubes 21 of the first embodiment. Thereby, the number (three) of the flat tubes 24 constituting the flat tube bundle 23 is the number of the flat tubes 21 relating to the flat tube bundle 2 of the first embodiment. Fig. 7, Fig. 2. Less). That is, the 'flat tube bundle relating to the second embodiment' is reduced for the flat tube bundle 2 of the first embodiment, and the number of the flat tubes 24 can be reduced without any effort. The third embodiment is - Person's liquid-cooling ferrule relating to the second embodiment, with reference to the eleventh drawing of the drawings, is a view of the entire solid body 22 1355049 relating to the liquid-cooled casing of the third embodiment. FIG. 12 is a view relating to the third embodiment. A plan view of the liquid cooling jacket. "Composition of liquid cooling jacket" As shown in Figs. 11 and 12, the liquid cooling jacket J3 of the third embodiment is compared with the liquid cooling jacket of the first embodiment. The cover body 34 having the inlet port 34a and the discharge port 34b formed at different positions is provided. The inlet port 3 4 a is connected to the approximate central position of the space 1 〇a (the first flow path A1) to connect the cooling water to the space 1 The center position is supplied. The discharge port 34b is connected to the approximate center position of the space 丨0c (third flow path), and the cooling water is discharged from the approximate center position. The inlet port 34a and the discharge port 34b are viewed from the plane, and Cpul 〇1 is set symmetrically as the center, The cover body 34 is also disposed in the same position as the cover body 31 of the first embodiment, and has a notch portion 34c having a shape corresponding to the position fitting portion 14 of the casing body 1〇. The effect of the entanglement is described in the following. The inlet port 34a and the discharge port 34b are supplied from the inlet port 34a to the first portion by the configuration of the position close to the cpu 101. The cooling water system of the first-class path (space 10a) is easily circulated in the second machine path Ma in the vicinity of the CPU 101. Thereby, between the cooling water and the CPU 101, it is possible to change the field as a hot parent. The CPU 101 is efficiently cooled. [Fourth Embodiment] A liquid-cooling jacket of the fourth embodiment will be described with reference to Fig. 13 to Fig. 13. Fig. 13 is a perspective view of the liquid crystal jacket of the fourth embodiment. 1355049 is a view showing a state in which the cover unit is omitted. Fig. 14 is a z-z sectional view showing the liquid-cooled jacket of the fourth embodiment shown in Fig. i3. Fig. 15 is a view showing the ZZ shown in Fig. 14. An enlarged view of the section view. Figure 16 is a table; A perspective view of a first method for producing a liquid-cooled fin element of the present invention, wherein the towel (4) indicates before cutting, and (8) is after cutting. Figure 17 is a liquid-cooled nested fin according to the fourth embodiment. A perspective view of the second manufacturing method of the element, "mi" (a) indicates before cutting, and (8) is after cutting. The first drawing is a perspective view of the friction stir welding of the fourth embodiment. Fig. 19 is a fourth embodiment. Fig. 2 is a plan view showing the operation of the tool in the friction stir welding of the fourth embodiment. The constitution of the liquid cooling jacket is as shown in Figs. The liquid-cooling jacket J4 relating to the fourth embodiment is provided with a fin member 25 made of aluminum or an aluminum alloy instead of the flat tube bundle 2 of the liquid-cooling jacket 有关 of the first embodiment. Further, the ferrule body 10 of the fourth embodiment is provided with a fin accommodating chamber for accommodating the fin member 25 on the inner side thereof, and the fin accommodating chamber is surrounded by the peripheral wall 12. Further, the fin element 25 is fixed to the bottom wall u by being welded and housed in the fin accommodation chamber, and the opening of the cover body 1 is used as a cover by the cover body 31 (sealing body), and the fin accommodation chamber is sealed. (Refer to Fig. 14) ^ <Fin Element> As shown in Fig. 14, the fin member 25 includes a substrate 25a and a plurality of fins 25b which are erected here. The substrate 25a is joined and fixed in a heat exchange manner to the bottom wall 11 of the body 1〇. Therefore, the heat of cpu ι〇ι 24 1355049 is transmitted to the heat diffusion sheet 102 and the bottom wall u. Further, the upper side J of each fin 25b is known to be in contact with the inside of the body 31. Further, the substrate 25a and the body 1 are preferably joined by heat exchange so as to be welded by a welding material such as a metal alloy such as a Msi-zn system. Further, the adjacent borrowing pieces 25b and 25b are respectively the second flow path. That is, the fin element 25 has a plurality of second flow paths B3a, that is, a second flow path group 构成 composed of a plurality of second flow paths B3a. As shown in Fig. 15, the distance between the adjacent fins 25b, 25b (i.e., the groove width ffi as the width of the second flow path B3a) is designed to be 1.1 mm, whereby the liquid cooling can be set. The heat resistance of J4 and the loss of force received by the cooling water inside thereof are as good as described by the examples described later. Further, the groove width W1 and the thickness τ1 of the fin 25b (that is, the thickness τ1 of the fin 25b between the adjacent second flow paths B3a and B3a) satisfy the following relationship (1). Thereby, the heat resistance of the liquid cooling jacket J4 becomes small, and heat exchange is favorably performed between cpul〇1 and the cooling water. -0.375 X Π + G.875 S T1/W1 $ -L875 χ W1 + 3 275 (1) Further, the groove width W1 and the depth D1 (the depth of the second flow path B3a) are sufficient to satisfy the relationship of the formula (2). Thereby, the heat resistance of the liquid cooling jacket J4 can be made most appropriate. 5 X W1 + 1 ^ D1 $ 16.25 X + 2.75 ... (2) "The effect of liquid-cooled ferrules" - People's simple description of the effect of the liquid cooling jacket J4. 25 1355049 The cooling water flows in the order of the first flow path A1, the second flow path group B3 (the plural second flow path B 3 a ), and the third flow path C1. The garbage is mainly exchanged between the cooling water flowing through the second flow path group B3 and the plurality of fins i 30. As a result, the CPI can be efficiently cooled. 10h 'The manufacturing method of the fin element of the liquid-cooled jacket>> Next, the production (manufacture) of the fin-reading 25 of the liquid-cooling jacket 4j method. <First Manufacturing Method of Fin Element> First, the first method of making the ancient element and the earth element of the fin element 25 will be described with reference to Fig. 16. As shown in Fig. 16(a), a metal extruded member 41 having a bottom plate 42 and a plurality of chrome μ from the human ρ - and the 扪 strip 43 which are erected on the bottom plate 42 is produced by using a predetermined model. Further, by cutting the extruded member 41 at a predetermined cut surface such as a number of mills, a substrate 25a (a part of the bottom plate 42) and a plurality of Korean pieces can be prepared (multiple strips 43) Part of the tab element 25 (see figure i6(b)). <Second Manufacturing Method of Rotating Element> Next, the description of the fin element 25 will be described. In the first production method, reference is made to the seventh block, as shown in Fig. 3, in a metal block 44 corresponding to the size of the outer shape of the sheet 25, and the tool is used to form a plurality of grooves 44a. In doing so, it is possible to produce a fin 7L member 25 having a substrate 25a and a plurality of fins 25b (refer to Fig. 17(b) "Assembly of liquid cooling jacket" followed by a liquid cooling jacket. 】 4 * * In the case of the fin element 25 fixed by 26 1355049 fixed between the E body 10 and the cover unit 30 friction stir joint main reference 18 ~ 20 illustration. σ as shown in Figure 18 'in Korea The cover member 25 is welded and fixed to the cover body 10, and the cover unit 30 is covered while the notch portion 31c and the position fitting portion 14 are fitted. Further, as shown in Fig. 19, the opening edge of the body 10 The step is a step, and the cover body 31 is carried over the step portion # σ of the descending layer. The width W11 of the step portion 15 is the first flow path and the third flow path for ensuring the flow of the cooling water. The volume of the space is as small as possible and the body is preferably set at 0. 〇. 5 mm. Next, the fitting portion between the peripheral wall 12 and the lid body 31 is used to hold the tool for stirring and bonding 20 0 For friction stir welding. In doing so, at the back # of the tool 200, the friction stir joint κ (refer to Fig. 15) is shaped. The circumferential wall 丄 2 and the lid body 31 are joined. Here, the pin 2 〇 1 of the tool 2 。 is formed. The length L5 is preferably 6 〇乂 or less of the thickness η of the lid body 作为 as the member to be joined. As described above, by making the rabbit βη〇/Q1 6 (10) or less, depending on the material of the lid body, even if the width wu of the step portion 15 described above is small, the fitting portion pi is deformed by the pressing force of the tool 200. It is not easy to be made inside the sleeve body, and the shovel tool Λ 0 is controlled by a working machine (not shown) such as NC and is operated along the fitting portion P1 (refer to Fig. 18). At the time of joining, the set of the peripheral wall 12 of the body 10 is attached to the appropriate jig 21 〇. By this, the nn 9no _ 棺 棺 棺 棺 棺 棺 棺 棺 棺 棺 棺 周 周 周 周 周 周 周 周 周 周 周 周 周 周 周 12 工具 工具 12 工具 工具 工具 工具 工具 工具 工具The distance L6 (gap) between the outer peripheral surfaces of 12 is, for example, even if the peripheral wall 12 of the tool 200 is not easily deformed on the outer side by the following. Further, as described above, when the peripheral wall 12 is thin, in order to avoid the tool 2 The contact between the crucible and the jig 210 causes the surface of the jig 21〇 to decrease by 1.0 on the surface of the fitting portion η Preferred degree of 2.0 mm.

Further, as shown in Fig. 20, the beginning and the end of the friction stir welding command cause the tool 2 to operate as an overlap (reference symbol Q). Thereby, the cover body 10 and the cover body 31 are joined without a gap, and the cooling water is less likely to leak outside the sleeve. Next, the tool 200 is removed from the fitting W, and the pin 2 is removed. * The plucking trajectory of the pin 2 01 is not formed in the fitting portion p1. [Fifth Embodiment] Next, regarding the liquid-cooling jacket of the fifth embodiment, reference is made to a sectional view of the liquid-cooling jacket of the fifth embodiment with reference to Fig. 21 of the second drawing. Fig. 22 is an enlarged view of the cross-sectional view shown in Fig. 21. Fig. 5 is a view showing a method of manufacturing the crotch element of the liquid-cooled entanglement according to the fifth embodiment, wherein (a) is for the cutting process and (b) is for the scraping process. Figure 24 is a diagram showing the fabrication of fin elements of the liquid-cooled jacket of the fifth embodiment.

The figure of the method does not indicate that it will be removed after the portion of the scraping fin shown in Fig. 23(b). Fig. 25 is a cross-sectional view showing the frictional engagement of the fifth embodiment.稞 又 ’ 'For the liquid-cooled jacket J4 of the fourth embodiment, the description of the composition of the liquid-cooled ferrule

As shown in Fig. 21, the liquid-cooling jacket of the fifth embodiment mainly includes a sleeve body 10C and a fin member 29 made of aluminum or aluminum alloy, and the CpiJ 28 101 is attached to the fin member 29. The bottom wall is made up of a set of 匡 请, please open it on the lower side of the 21st figure, and it is a thin case which has a fin accommodating chamber inside. The cymbal element 2 9 is formed by cutting a sheet 6 i as described later (refer to Fig. 23 (4)), and includes a bottom wall 29a and a plurality of metal sheets.

The W 29b of the 29a (sealing body) is erected above the bottom wall 29a, and the bottom wall w is integrally formed. Thereby, between the bottom wall 29a and the fin coffee, the heat is well transmitted, and the bottom wall 29a serves as a sealing body (four) H adjacent to the Korean film &amp; chamber, which is adjacent to the W 29b ' 29b. The function of the second flow path B4a (refer to Fig. 22), the liquid cooling jacket has a second flow path group B4 composed of a plurality of second flow paths B4a. Further, the fin element 29 is mounted on the sleeve. In the state of the main body 1 〇C, as in the fourth embodiment, in the liquid cooling jacket J5, the first flow path A1 and the third flow path π are formed (refer to Fig. 13). The effect of 匣 其次 其次 其次 其次 简单 简单 简单 简单 简单 简单 简单 简单 ' ' ' ' ' ' ' ' ' ' ' ' ' 简单 ' B4a), the third flow path ci (refer to Fig. 13). Further, the heat is exchanged between the cooling water flowing through the second flow path group B4 and the plurality of pieces 25b, and the cpu 101 can be efficiently cooled. Therefore, since the bottom wall 29a and the fins 29b are integrally formed, the heat of the CPU 101 is well transmitted to the plurality of fins 29b, and the result is good. 29 1355049 "Manufacturing method of fin element for liquid-cooled ferrule" "-Man, production of fin 29 of liquid-cooled ferrule J5 by scraping (manufacturing, terracotta. _ part method, reference Fig. 23 and Fig. 24. As shown in Fig. 23(a), the plate-like plate 61 is carried out in Japanese Patent No. 326308, and Japanese Special Two () () 352 () 2 ( The scraping process is carried out by the bullet. In detail, by cutting the two corners of the cutting tool on the plate 6i, the portion of the plate 61 is cut off to form a plurality of finned fins 63. This is repeated a plurality of times. The scraping and the door body 64 having the plurality of scraping fins 63 are produced (refer to Fig. 23(b)). Therefore, the portion of the uncut plate 61 is wound into the bottom wall 29a (sealing body) of the fin member 29. Then, when assembling with the casing body 1〇C to form the liquid cooling jacket J5, the first flow path A1 and the third flow path π are formed in the liquid cooling jacket J5, and the plurality of scraping fins 63 are formed. The outer peripheral side portion is removed by a cutting tool. In doing so, as shown in Fig. 24, a plurality of fins 2 having a bottom wall 29a and integrally formed therewith can be obtained. The fin element 29 of 9b. The method of manufacturing the fin element 29 is not limited thereto, and the fin element 25 (refer to Fig. 16) or the borrowing of the extruded member 41 according to the fourth embodiment is used. The fin element 25 formed by the groove processing (refer to Fig. 17) may be formed by taking a part of the fin 25b. "Assembling of the liquid cooling jacket" Further, as shown in Fig. 25, The ferrule body 1 〇 (: and the fin element 29 are combined, and, similarly to the fourth embodiment, while the jig 21 is abutted, the octagonal portion P2 is friction stir welded. Further, the length L5 of the pin 201 of the tool 200 is preferably 60% or less of the thickness T3 of the bottom wall 29a (the body of the seal 30 1355049) of the fin member 29 as the member to be joined. <<Sixth Embodiment>> For a long time, the liquid cooling jacket g relating to the sixth embodiment is referred to as a sectional view of the liquid-cooling jacket of the sixth embodiment, wherein (a) ) indicates the completion state after assembly, and (b) indicates the assembly. <<Composition of Liquid Cooling Envelope>> As shown in Fig. 26(a), the liquid cooling jacketing system according to the sixth embodiment is provided with a casing body i比较 in comparison with the liquid cooling jacket J1 of the first embodiment. A (first fin element) and cover unit 35 (second fin element) are featured. The casing body 10A includes a bottom wall ι (first substrate) and a plurality of fins 13 that are erected at a predetermined interval between the bottom walls u. On the other hand, the cover unit 35 includes a cover body 36 (second substrate) and a plurality of fins 37 that are erected at a predetermined interval between the cover bodies 36. The sleeve S body 10A and the cover unit 35 are combined in such a manner that a plurality of fins 13 and a plurality of fins 37 are coupled, and the cover body 36 is engaged and fixed to the sleeve body 10A. The fin system of the liquid cooling jacket J6 is composed of a plurality of fins 13 and a plurality of fins 37 that are engaged. Further, between the adjacent tabs 13 and the fins 37, the second flow path B5a is formed, and the liquid cooling jacket gjg has a second flow path group B5 composed of a plurality of second flow paths B5a. As described above, by engaging the plurality of fins 13 and the plurality of fins 37, the fins are formed 'to widen the interval d1 of the plurality of fins 13 and the interval d2 of the plurality of fins 37, respectively, according to the cutting tool. Ditch processing is easy. The protruding length L1 of the bottom wall η of the self-complex fins 13 is set to be the same as or shorter than the length L2 of the cover body % of the self-complex fins 37 as in the 26th (b)th circle rttl. The way. Further, the 'plural fins and the bottoms are heat-exchange-bonded and fixed by appropriate means, and the heat is connected thereto, and the heat of the CPU 1 〇1 on the side of the casing 10A (on the first substrate side) is not limited. The fins 13 that are transmitted to the plurality of fins are also transmitted to the plurality of fins 37. That is, by setting the protruding length L1 of the plurality of fins 13 to be the same as or shorter than the protruding length L2 of the number of the Korean sheets 37, a plurality of cans are assembled at the time of assembling the nesting body 1A and the cover unit 35. The front end (top) of the sheet 37

The bottom i 11 of the sleeve 确实1〇A is surely abutted, and the plurality of fins 37 and the bottom wall 11 can be surely thermally connected. "Effects of liquid cooling ferrules" Secondly, a brief description of the effect of the liquid cooling jacket J6. According to the liquid-cooling jacket J6 of this type, when the cooling water flows through the second flow path group B5, the heat of the "^" transmitted to the plurality of fins 13 and the plurality of fins 37 is transmitted to the circulating cooling water, and the CPU The 101 series is cooled efficiently. Seventh Embodiment

Next, regarding the liquid-cooled ferrule of the seventh embodiment, reference is made to Fig. 27 Geman. Figure 27 is a cross-sectional view showing the liquid-cooled jacket of the seventh embodiment, wherein (a) indicates the completion state after assembly, and (b) indicates before assembly. <<Composition of Liquid Cooling Envelope>> As shown in Figs. 27(a) and 27(b), the liquid a set of MJ 7 relating to the seventh embodiment is substituted for the liquid cooling jacket j 1 of the first embodiment. The flat tube bundle 2 is provided with a metal honeycomb body 26 having a plurality of fine pores 26a. 32 1355049 <Hive body> The honeycomb body 26 is in the sleeve E body i. The bottom wall U is joined by the appropriate hand t僖Γ exchange. Therefore, the heat system of cpuiqi becomes = to (4) 26b surrounding the pores 26a. Each of the fine pore centers functions as the second flow path B6a of the cold P hydration. That is, the honeycomb body 26 has a second flow path group B6 composed of a plurality of second flow paths B6a. Here, as shown in Fig. 27, although the honeycomb body 26' having a rectangular shape in a cross section is shown by way of example, the shape of the pores is not limited thereto, and it is also a hexagonal shape. can. It is also preferable that the bottom wall π of the honeycomb body 26 and the casing body 1 is detachably joined by heat welding. _ "The effect of liquid cooling jacket" Second, a brief description of the effect of the liquid cooling jacket J7. The cooling water flows in the first flow path A1, the second flow path group B6 (the plural second flow path B6a), and the third flow path π in this order. Further, heat exchange is mainly performed between the peripheral wall 26b of the honeycomb body α and the cooling water flowing through the second flow path B5a, and the heat of the surrounding soil 26b is transmitted to the cooling water. As a result, the CPU 1〇1 can be effectively cooled. [Eighth Embodiment] Next, with respect to the liquid-cooled jacket of the eighth embodiment, referring to Fig. 28, the figure 28 is a sectional view of the liquid-cooled jacket of the eighth embodiment, wherein (a) indicates The completed state after assembly, and (b) indicates before assembly. "Composition of liquid-cooled jacket" As shown in Figs. 28(a) and 28(b), the liquid-cooling jacket J8 of the eighth embodiment is used instead of the liquid-cooling jacket of the first embodiment. J1 W flat tube: 1355049 2〇, and has a metal heat exchange sheet 2? (breaking sheet) with a corrugated profile as a feature. <Heat exchange sheet>

The hot parent sheet 27 includes a sheet main body 27a made of an alloy such as A1_Mn type or M_Fe Mn type, and a solder material layer 27b formed of an aluminum alloy such as A1_Si to h type on the lower surface side. Further, since the welding material layer 27b of the heat exchange sheet is partially melted and hardened, the bottom wall 1 of the casing body 可 is heat-exchangeably joined and fixed. Therefore, the heat of the cpu 1〇1 is 1 The bottom wall 11' is conveyed to the heat exchange sheet 27. _ Further, between the heat exchange sheet 27 and the ferrule body 10 or the lid body 31, a plurality of second flow paths B7a are formed. The casing J8 has a second flow path group B7 composed of a plurality of second flow paths B7a. "Effects of the liquid cooling jacket" Next, the effect of the liquid cooling jacket J8 will be briefly described.

The cooling water flows in the first flow path A1, the second flow path group B7 (the plural second flow path B7a), and the third flow path C1 in this order. Further, heat exchange is mainly performed between the heat exchange sheet 27 and the cooling water flowing through the second flow path B7a, and the heat of the heat exchange sheet 27 is transmitted to the cooling water. As a result, the CPU 1 can be efficiently cooled (Π. Ninth Embodiment) Next, the liquid-cooling jacket of the ninth embodiment will be described with reference to Fig. 29. Fig. 29 is a liquid cooling relating to the ninth embodiment. In addition, in Fig. 29, in order to make it easy to understand, the state other than the cover body is drawn. "Composition of liquid cooling jacket" 34 1355049

As shown in Fig. 29, the liquid-cooling jacket J9 of the ninth embodiment (although the liquid-cooling jacket 第一 of the first embodiment is provided with one flat tube bundle 20) is provided with three flat tube bundles 20. Further, the three flat tube bundles 2 are attached to the ferrule body 10B, and the hollow portions 21a of the flat tube bundles 2 (the second flow paths quot are arranged in a line in the same direction. Further, three flat tube bundles 2 The tether is in the casing body 10B, between the upper flat tube bundle 2〇 and the flattened official beam 20 in the middle flow, and between the flat tube bundle 2 () in the middle stream and the flat tube bundle 20 in the downflow, space! 0d, space In the state in which i 〇d is set, the bottom wall u of the sleeve S body 10B is heat-exchangeably joined and fixed. The spaces l〇d and lGd serve as the second flow path group of the flat tube bundle 2G in series. The function of the fourth flow path E1 (connection flow path) is to set the flow path sectional area of the fourth flow path E1 to be larger than the flow path sectional area of each of the second flow path group B1 and the second flow path. That is, the liquid cooling jacket E J9 is provided with three first-group units arranged in an in-line manner. Ηth to the right group (the second flow path φ "The effect of the liquid cooling jacket" Next, a brief description of the effect of the liquid cooling jacket EJ9. The cooling water system is sequentially distributed in the first - household Dulu / Gua Lu A1, the second flow path group of the upper flow, the fourth flow path E1, the first flow path group Β1 of the middle 产4 group Ύ soil, the second flow path E1, and the second flow path group of the lower 々丨L b], 筮二$

There is no first road C, that is, the cooling water system is inline to two adjacent second flow path groups, and the 歹J is in the adjacent second flow path group βι ', cooling water. 1 Between the fourth production path E1 and the third flow path E1, the pressure loss of the four-way road by f is lowered. That is, the fourth flow path having a large cross-sectional area is between the first flow path group β 1 and b 1 35 1355049 and the second long flow path length without passing through the fourth flow path £1. The situation comparison 'can make the effect on the micro-pull 122 (four) load smaller. Tenth Embodiment Next, regarding the liquid cooling jacket E of the tenth embodiment, reference is made to the third embodiment. The figure is a plan view of the liquid cooling jacket relating to the tenth embodiment. Figure 31 is a graph of the relationship between phase number and thermal resistance. As shown in Fig. 30, the liquid-cooled chime system of the tenth embodiment is the same as the liquid-cooled (four) J9 of the ninth embodiment, and has three second flow path groups m, M connected in series. In the B1 (second flow path group), the adjacent second flow path group MM is connected in series via the fourth flow path E1 (connected flow path) in the cooling/water flow direction. In the liquid cooling jacket, the adjacent second flow path groups B1, B1 are juxtaposed while the adjacent second flow path group bi, the downstream end and the downstream side of the object on the upstream side The upstream ends are arranged on the same side, and the lower ends and the upstream ends are connected in series via the fourth flow path E. Specifically, as shown in Fig. 30, the second flow path group bi and the middle position of the upstream position are adjacent to each other in the flow direction of the cooling water. The horizontal direction is set in parallel. Further, for example, at the upstream position, the downstream end of the second flow path group 1 and the upstream end of the second flow path group 中 at the intermediate flow position are on the same side, and are oriented toward the lower side in Fig. 30. Here, in the present specification, as described above, the adjacent second flow path groups B1 and 1 are arranged side by side, and in the ninth embodiment, the performance is returned. Therefore, the liquid cooling cover according to this type匣J1〇, the cooling water snakes and flows through the inside. In doing so, the heat resistance of the liquid-cooled jacket J1〇 becomes smaller than the liquid-cooling jacket J9 that is not returned by 36 1355049. When the size of the liquid-cooled jacket of the main surface is taken as one, the number of the first roads constituting each of the second flow paths VII--^ _ group β 1 is not changed, and the number of returns is increased. When the number of the second-flow path group β1 is increased, the second roads of the first flow path group 构成1 are formed. The sectional area of the slave road of the one-claw is reduced. Thereby, the flow rate of the cooling water flowing through the liquid cooling jacket g is When the number of the second flow path groups B1 is constant, the flow rate of the cooling water passing through each of the first and second channels is increased. Therefore, the heat is efficiently cooled by the liquid cooling process only. People, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, It is to be understood that the scope of the present invention is not limited by the scope of the invention, and may be modified and retouched without departing from the spirit and scope of the invention. In the above-described embodiments, although the case where the heat generating body is used as the CPU 101 is described, the type of the heat generating body is not limited thereto, for example, the φ power module (power) In the first embodiment described above, the plurality of flat sheets 21 of the flat tube bundle 2 are configured to be bound in the thickness direction thereof, but may be The width direction is bound to be configured. Although the liquid cooling jacket j1 of the first embodiment described above is provided with the flat tube 21 in a plurality of bundled flat tube bundles 2 (refer to Fig. 6), others, for example, As shown in Fig. 32, instead of the flat tube bundle 2, a liquid-cooling jacket 匣ju having a flat portion 37 1355049 tube 28 having a plurality of hollow portions 28a partitioned by a plurality of partition walls may be provided. In this case, each hollow portion 28a As a function of the second flow path B8a, the flat tube 28 has a second flow path group composed of a plurality of second flow paths B8a. In the liquid cooling jacket j1 relating to the above-described first embodiment, although the entry is explained The port 31a and the discharge port 31b are formed in the lid body 31, but the positions of the inlet port 31a and the discharge port 31b are not limited thereto, and for example, the case where the peripheral wall 12 of the casing body 10 is formed may be used. The position of the inlet pipe 32 and the discharge pipe 33 is not limited to the upper side of the liquid-cooling jacket; 1 but also to the side surface side. In the liquid-cooling jacket J6 relating to the sixth embodiment described above, although the fins ^ The ferrule body 10A and the fins 37 are respectively erected on the cover body 36 (refer to FIG. 26). As shown in FIGS. 33(a) and 33(b), the first substrate 51 is provided and a first chip element 5G of the plurality of first fins 52 on which the first substrate 51 is erected, and a second fin having a second substrate 56 and a plurality of second fins 57 that are erected on the second substrate π The liquid cooling jacket S J12 of the sheet member 55 is also acceptable. With regard to the liquid-cooling jacket J12 shown in Fig. 33, the first fin member 50 and the second tab member 55 are combined in a plurality of first-piece fins, and liquid-cooled. The whole system of the fins of the gold=12 is composed of a plurality of first Korean films and a second one, in the adjacent first borrowing piece =, = road one...the ...component = ... The heat transfer substrate 51 is a bottom wall 38 of the body (7) and a liquid cooling jacket J12, and has a second flow path group Β9β composed of a plurality of second flow paths _, and the first number of the first plurality of fins The dog length L3 of the substrate 1 is set to be the same as or shorter than the protruding length u of the second substrate 56 of the second fin 57. Further, the plurality of second fins and the ruthenium substrate 51 are joined and fixed in a heat exchange manner by a suitable means for thermal connection. In the above-described first embodiment, the first flow path a and the third flow path C1 are respectively formed by providing spaces 1〇a, 1〇c between the sleeve E body 10 and the flat b bundle 20. (Refer to Fig. 5), other, for example, no space 1 〇c is provided on the outer side of the casing body ,, and a branch pipe is disposed on the upstream side thereof, wherein the work pipe is used as the first flow path, and the collecting pipe is disposed on the downstream side. The hollow portion may be used as the third flow path. In the liquid-cooling jacket J4 (refer to FIG. 14) relating to the fourth embodiment described above, although the fin 70 member 25 is configured to be fixed to the casing body 10, as in the 34th diagram, the cover body 31 is provided. The set of E body 1 〇 side fixed fin element 2 ^ liquid cooling nest can also be. Further, as shown in Fig. 2, cm οι may be configured to be attached to the cover body 31. Further, the inlet pipe 32 which is the inlet port of the cold water to the liquid cooling jacket J13 and the j outlet e 33 which serves as the discharge port may be attached to the casing body 1〇. Other, = the body of the body 31, the side of the body 1 (), the body is formed into a fin. Further, as shown in Fig. 35, the sleeve body 1 has four legs having the insertion holes 16a. 1 6, in each of the insertion holes 1 6a inserted through the screw} 25, the liquid cooling jacket J13 is installed in the personal computer body 12 〇 (refer to the figure) 39 1355049 box, 126 hours 'tool 200 pull out position It is preferable that the portion corresponding to the insertion hole is preferable. Further, after the tool 2 is pulled out at such a position, the trace portion of the tool 2 can be hidden by forming the insertion hole 16a in the portion of the trace which is pulled out. Further, Fig. 34 is a X-Xi cross section of Fig. 35. [Examples] Hereinafter, the present invention will be more specifically described based on examples. (1) Review of the groove width w1 of the first embodiment and the second flow path B3a. Regarding the liquid-cooling jacket j4 of the fourth embodiment (refer to Fig. 13), the groove width W1 of the second flow path B3a is created (refer to The following is a pattern of the liquid-cooled jacket J4 produced in Table J as an article made of aluminum alloy of ^^, 〇·5mm, and 1.0M. Further, in Table 1, the total flow path width W0 is the width of the first flow path M and the third flow path ci. Further, the total flow path length LM is the sum of the length of the first flow path A1 'the length of the second flow path B3a and the length of the third flow path π (refer to Figs. 13 and 14). [Table 1] Thermal conductivity (W/mk) of aluminum alloy 200 Overall flow path width WO (mm) 100 Whole flow path length LO (mm) 100 Second flow path B3a groove width W1 (mm) 2, 〇. s 1 η Depth D1 (mm) of the second flow path B3a 10 Further, water as cooling water is used, and the water system is operated at 5 (L/min) to activate the micro pump 122 (refer to Fig. 1). Table 2), reviewing the relationship between the groove width W1 of the second 1355049 flow path B3a and the heat resistance and pressure loss of the liquid cooling jacket S J4. Thermal resistance and pressure loss are measured in an appropriate manner. Further, the liquid-cooling jacket E J4' of this type has a target thermal resistance of not more than 0.08 (°C/W). Cooling water cooling water flow rate (L/min) -____5. 0 [Table 2] As shown in Fig. 36, since the groove width of the second flow path &3&amp; W1 becomes smaller, the liquid cooling jacket J4 The contact area with the cooling water becomes large, and the heat resistance of the liquid cooling jacket J4 becomes small. On the other hand, when the groove width W1 of the second flow path is larger than l.lmin, the thermal resistance is confirmed to be larger than the target 〇.〇〇8(C)c/w). In addition, the pressure loss of the cooling water by the liquid cooling jacket J4 is smaller than 〇. 2 mm when the groove width W1 of the first passage B3a is smaller than 0.01 (°C/W). # Therefore, the groove width W1 of the second flow path B3a is 〇. 2~丨.丨m m is preferable. (2) Example 2, review of the relationship between the thickness T1 of the fin 25b and the groove width W1 of the second flow path B3a, and the groove width W1 of the second flow path B3a is set to 0.2 dragon as in the first embodiment. Three types of 0.5 mm and 1.0 mm (refer to the reference sheet, the thickness Τ1 of the fin 25b is appropriately changed for the groove width W1 of each of the second flow paths B3a, and the thickness T1 and the groove width of the fin 25b are reviewed. The relationship between the ratio of π (T1/W1)" and "thermal resistance". As shown in Fig. 37, in the width W1 of each groove, there is a range of "n/wr" where the heat resistance is reduced to 41 1355049. The range is a range below the value of 5% of the minimum heat resistance in each groove width π. Specifically, the groove width of the second flow path B3a is 1 〇 because the minimum heat resistance is 0. 〇〇73rC /W) 'The value of 5% increase is 0.0073 XL 05 = 0.0076rC/W). Further, the range below 〇 〇〇 76'rc/w) is 〇. 5 S Tl/Wl g h 4. Similarly, the groove width W1 of the second flow path B3a is 〇5 mm, and the above range is 〇·7 $ T1/W1 $ . Further, the groove width W1 of the second flow path is 〇.2 mm, and the above range is 0 8g T1/W1 $ 2 9 . Further, 'based on this, the X-axis is replaced by the groove width W1", and the γ-axis is referred to as "fin thickness η/groove width W1" &amp; a graph as shown in Fig. 38 is obtained. It is preferable to say that the groove width π ", the fin thickness T1/the groove width W1" satisfies the following formula (1). 曰0_375 X W1 + 〇. 875 S Tl/Wl g -1.875 X W1 + 3. 275 (1) () Review of the relationship between the groove width and the depth D1 of the third embodiment and the second flow path B3a. In the liquid-cooling jacket J4 of the fourth embodiment, the second flow path is The groove width W1 is set to three types of 〇.2 赖, 0.5mm, l. 〇mm^Reference Table 1) The width of each groove of the second flow path is made to make the depth ^ field change 'review related' depth Μ Relationship between "and heat resistance". As shown in Fig. 39, the heat resistance is reduced to be the same as in the second embodiment. As shown in the second embodiment, the range of the groove depth D1 at each groove width w 1 is the same as in the second embodiment. In the case of this range, the groove width W1 is 〇. 2mm, 42 1355049, each D1 $6, the groove width W1 is 〇. 5ππη, 4 $ Dl su groove width W1 is 1. 〇mm,6 S D1 S 18. Further, based on this, when the X-axis is replaced with the "groove width W1" and the γ-axis is the groove depth D1, the graph shown in the figure is obtained. As shown, "ditch width W1" and "ditch depth Dl" are preferably confirmed by satisfying the following formula (2). 5 X W + 1 S D S 16.25 X W + 2.75 ...(2)

(4) Example 4 Review of the effectiveness of the jig Next, in the friction stir welding between the ferrule body 1 〇 and the cover body 第四 in the fourth embodiment, the peripheral wall of the body 1 在 is reviewed. The effectiveness of the jig 210 is met. Also, in this review, the two types of tools 200 shown in Table 3 are used. \, as shown in Table 4, the distance L6 between the outer peripheral surface of the shoulder 202 in the a tool or the B tool and the outer peripheral surface of the peripheral wall (10) of the sleeve body ι is changed (refer to (d) diagram), and the jig 21 is changed. The presence/absence of the crucible is used to frictionally agitate the peripheral wall 12 and the cover miu cover body 31. Also, the quality of the joint was visually evaluated. 〇 良 Good. The 0 series is not good, and the X system indicates that the joint is not the same. The number of revolutions of the tool 200 is 60〇〇rpra 2〇〇_Λπιη. Further, the thickness τη of the peripheral wall 12 (refer to the first 'joining speed as a map of 19') is 4 mm. [table 3]

43 1355049 [Table 4]

As is clear from Table 4, when the jig 21 is used, the peripheral wall i2 is thin even if the distance U is 0.5, and it is confirmed that the peripheral wall 12 is not deformed, and the cover body 31 can be joined well. (5) Example 5, relationship between the length L5 of the pin and the thickness n of the cap body 31 Next, the relationship between the length [5 of the pin 2〇1 of the tool 200 and the thickness Τ2 of the cap body 31 is reviewed (refer to Fig. 19). . In this review, as shown in Table 5, the length L5 of the pin 201 was fixed at 2.0 mm, and the thickness T2 of the cap body 31 was changed, and the quality of the joint portion was visually evaluated. [table 5]

Length of the pin L5 Thickness of the cover body T2 (ram) L5/T2 (°/〇) I. Quality of the joint 2. 0 6. 0 33. 3 --------- 〇 2. 0 5. 0 40. 0 --- 0 2. 0 4.0 50. 0 0 2. 0 3. 0 66. 6 X As shown in Table 5, the length L5 of the pin 201 is the thickness T2 of the cover body 31 of the engaged component. In the range of 60.0% or less, it was confirmed that the cover 12 and the cap body 31 can be joined well. 1355049 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram of a liquid cooling system according to a first embodiment; Fig. 2 is a perspective view of a liquid cooling jacket of the first embodiment, and Fig. 3 is a self view A perspective view of the lower portion of the liquid-cooling jacket of the first embodiment; FIG. 4 is a perspective view of the liquid-cooling jacket of the first embodiment, showing a state in which the cover unit is omitted; and FIG. 5 is a first embodiment related to the first embodiment. Figure 6 is a plan view of a liquid-cooled jacket; Figure 6 is a cross-sectional view of the liquid-cooled jacket of the first embodiment shown in Figure 2; and Figure 7 is a liquid-cooling relating to the first embodiment. Fig. 8 is a perspective view schematically showing the liquid effect of the first embodiment; Fig. 9 is a perspective view showing the liquid cooling jacket of the second embodiment, showing the state in which the cover unit is omitted. Figure 10 is a cross-sectional view of the crucible of the second embodiment shown in Figure 9; Figure 11 is a full view of the liquid-cooled jacket of the third embodiment; Can A aa diagram Is a plan view of the liquid-cooled ferrule relating to the third embodiment; The overall drawing of the liquid-cooled jacket of the embodiment shows the state in which the cover unit is omitted; the body 45 丄 049 Fig. 14 is a ZZ sectional view of the liquid-cooled ferrule of the fourth embodiment shown in Fig. 13. Fig. 15 is an enlarged view of a Z_Z sectional view of the chart of Fig. 7; Fig. 6 is a first manufacturing method for the miscellaneous element of the liquid-cooled ferrule of the fourth embodiment; A perspective view, 1 圃, where (a) is before the cut, (b) is after the cut; and Fig. 17 is a perspective view showing the second method of making the liquid-cooled sleeve (four) of the fourth embodiment Wherein (4) indicates before cutting, (5) is after cutting; Fig. 18 is a perspective view of the frictional spitting joint of the fourth embodiment, and Fig. 19 is a cross-sectional view of the frictional disengagement of the fourth embodiment; Figure 20 is a plan view showing the action of the friction-removing bonding tool of the fourth embodiment; Figure 21 is a cross-sectional view of the liquid-cooling ferrule relating to the flute, and the second embodiment is shown in Figure 21 An enlarged view of the cross-sectional view; the component diagram is a liquid-cooled jacket (four) fin representing the fifth embodiment The illustration of the mounting method 'in which (4) is after the shaving; Ύ Qb) is the illustration of the fin of the liquid-cooled ferrule of the fifth embodiment. After the partial removal of the cut piece of Korean, the figure 25 shown in Fig. 23(b) shows a sectional view of the friction stir welding of the fifth embodiment, Fig. 46 1355049; Fig. 26 is the relevant The cross-sectional circle of the liquid-cooled jacket of the sixth embodiment, wherein '(a) indicates after assembly '(b) is before assembly; and FIG. 27 is a cross-sectional view of the liquid-cooled ferrule relating to the seventh embodiment, wherein a) indicates after assembly '(b) is before assembly; Figure 28 is a cross-sectional view of the liquid-cooled ferrule relating to the eighth embodiment, wherein (a) indicates after assembly '(b) is before assembly; _ 29th 1 is a plan view of a liquid-cooled jacket of the ninth embodiment; FIG. 30 is a plan view of the liquid-cooled jacket of the tenth embodiment; and FIG. 31 is a graph showing a relationship between the number of returns and thermal resistance; Figure 32 is a cross-sectional view of a flat tube bundle according to a modification; Figure 33 is a cross-sectional view of a liquid-cooled ferrule relating to a modification, wherein (a) After assembly, (b) is before assembly; Figure 34 is a cross-sectional view of the liquid-cooled jacket of the modification; Figure 35 is a perspective view of the liquid-cooled jacket of the modification; A graph of the relationship between the groove width W1, the thermal resistance, and the pressure loss; Fig. 37 is a graph showing the relationship between the thickness n/the groove width π of the fin and the thermal resistance; the 38th figure is the groove width W1 and the fin A graph of the relationship between the thickness Τ 1 and the groove width; Fig. 39 is a graph showing the relationship between the groove depth D1 and the heat resistance; and Fig. 40 shows the relationship between the groove width π and the groove depth M. Fig. 47 1355049 table. [Main component symbol description] A1 first flow path,

Bla second flow path, J1 liquid cooling jacket, 10a, 10c space, 12 perimeter wall, 20 flat tube bundle, 21 a hollow, 21 c partition, 31a inlet, 101 CPU (heat generator), 201 pin, 210 The length of the jig, the L5 pin, the outer peripheral surface of the L6 tool, the circumference P1 fitting portion, the thickness of the T1 fin, the thickness of the T11 peripheral wall, and the width of the W11 step portion. B1 second flow path group, C1 third flow path, 10 sets of raft body, 11 bottom wall, 15 step difference part, 21 flat tube, 21b peripheral wall, 31 cover body, 31b discharge port, 200 tools, 202 shoulder, K friction stir The distance between the outer peripheral surface of the joint portion, the Q overlap portion, the thickness of the T2 cover body, the width of the W1 groove,

48

Claims (1)

1355049 VII. Patent application scope: 1. The liquid is cold-set, the heat generating body is installed at a predetermined position, and the heat generated by the heat generating body is transmitted to the heat transfer fluid supply device from the outside to be supplied and distributed inside. The hot-wheeling fluid is characterized in that: the body of the above-mentioned heat-transporting fluid flows to the inner raft, and has a fin accommodating chamber for accommodating metal fins; and a sealing body that seals the stencil accommodating chamber; The fitting portion between the peripheral wall of the sleeve E main body surrounding the Korean sheet storage chamber and the sealing body is friction stir welded, and the metal fin is erected on the sealing body and integrated with the sealing body. 2. The liquid cooling jacket E according to claim 1, wherein the beginning and the end of the friction feeding joint overlap. Such as Shen. The liquid-cooled cloak according to item ith or item 2 of the patent, wherein the peripheral wall is not deformed on the outer side, and the friction stir welding is broken on both sides of the peripheral wall abutting jig. 4. The liquid cooling jacket according to claim 1 or 2, wherein the length of the pin of the tool used in the friction stir welding is 60% or less of the thickness of the sealing body. 5. The liquid-cooled jacket of claim 3, wherein the length of the pin of the tool used in the upper friction stir joining is less than 60% of the thickness of the tool. The liquid-cooled jacket of the first or second aspect of the patent application, wherein 49 1355049 is in the friction stir welding, the pulling-out position of the tool is removed from the fitting portion. 7. The liquid-cooled jacket according to claim 3, wherein in the friction stir welding, the pulling-out position of the tool is removed from the fitting portion. 8. The liquid-cooled jacket according to claim 4, wherein in the friction stir welding, the extraction position of the tool is removed from the fitting portion. 9. The liquid-cooled jacket of claim 5, wherein in the friction stir welding, the extraction position of the tool is removed from the mating portion. 50