Water-cooling shell, manufacturing method thereof and magnetic gear with water-cooling shell

Abstract

The invention discloses a water-cooling shell and a manufacturing method thereof and a magnetic gear with the water-cooling shell, the water-cooling shell comprises an inner cylinder, an outer cylinder, a first end flange, a second end flange and a reinforcing partition plate, and the reinforcing partition plate is arranged in a gap between the outer cylinder and the inner cylinder to form a one-way flow channel for circulating cooling water. The reinforcing partition plate is supported between the outer cylinder and the inner cylinder, so that the water-cooling shell has enhanced overall strength. Inlet water and return water are separated through the reinforcing partition plate, cooling water flows in one direction, and the cooling effect is improved. The inner barrel is provided with the key grooves, large torque transmission can be achieved, meanwhile, the reinforcing partition plates are fixedly connected to the positions corresponding to the key grooves, the structure reinforcing effect is achieved, large torque transmission of the thin inner barrel is achieved, the manufacturing cost of the inner barrel is reduced, and the heat exchange effect is enhanced through thinning of the inner barrel. Therefore, the water-cooling shell provided by the invention has the characteristics of high strength, low cost and the like, and is suitable for a magnetic gear and a motor, in particular to a high-power and large-torque output scene.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic gears, and in particular to a water-cooling housing and a manufacturing method thereof, and a magnetic gear having the water-cooling housing. Background Art

[0002] During operation, magnetic gears will generate a large amount of heat due to eddy current loss, mechanical wear and other reasons, which directly affects the performance and operational safety of the equipment. The greater the power and the higher the speed, the more obvious the thermal effect. At present, there are very few water-cooling housing designs specifically for magnetic gears. In actual engineering implementation, the design is mostly based on the water-cooling housing of rotary transmission equipment. However, the water-cooling housing of traditional rotary transmission equipment (such as motors) mostly uses the method of hot-fitting the inner and outer jackets to form a water channel, and the inner cylinder and the iron core are generally tight-fitted, which is suitable for transmitting smaller torques. If it is used for magnetic gears that transmit larger torques, higher requirements are placed on the precision of the tight fit, resulting in a high production cost for a single transmission device. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides a water-cooling housing and a method for manufacturing the water-cooling housing.

[0005] The embodiment of the present invention also provides a magnetic gear having such a water-cooling housing.

[0006] According to an embodiment of the present invention, the water-cooling housing comprises: an inner tube and an outer tube, the outer tube being coaxial with the inner tube, the outer tube being sleeved with the inner tube and forming a gap therebetween in a radial direction; a first end flange and a second end flange, the first end flange and the second end flange being respectively located on both sides of the gap and connected to each of the outer tube and the inner tube to seal the gap; a reinforcing baffle, the reinforcing baffle being located in the gap and being sealedly connected to each of the outer tube and the inner tube, the reinforcing baffle cutting the gap into a one-way flow channel, the outer tube being provided with a water inlet and a water outlet communicating with the one-way flow channel, the inner circumferential surface of the inner tube being provided with a key groove, the reinforcing baffle being opposite to the key groove in a radial direction of the inner tube, the side end of the reinforcing baffle facing the inner tube being fixedly connected to the inner tube to play a reinforcing role, and the width of the reinforcing baffle in the circumferential direction of the inner tube being greater than the width of the key groove in the circumferential direction of the inner tube.

[0007] The water-cooled housing provided by the embodiment of the present invention forms a one-way flow channel for circulating cooling water by arranging a reinforced baffle in the interval between the outer cylinder and the inner cylinder, and uses the reinforced baffle to separate the incoming water and the returning water, so that the cooling water flows in one direction, thereby improving the cooling effect. Since the reinforced baffle is supported between the outer cylinder and the inner cylinder, the water-cooled housing has enhanced overall strength. In addition, the inner cylinder has a keyway, which can realize large torque transmission. At the same time, the reinforced baffle is fixedly connected at a position corresponding to the keyway, which plays a structural reinforcement role, realizes large torque transmission of a thin inner cylinder, does not need to use a tight fit to transmit torque, has low processing accuracy requirements, reduces the manufacturing cost of the equipment, and the thinning of the inner cylinder helps to enhance the heat exchange effect.

[0008] Therefore, the water-cooling housing provided by the embodiment of the present invention has the characteristics of high strength and low cost, and is suitable for magnetic gears, electric motors, and especially for scenarios with high power and high torque output.

[0009] In some embodiments, the water-cooling shell also includes a plurality of flow channel plates, which are located in the interval and sealedly connected to each of the outer tube and the inner tube, and the plurality of flow channel plates are spaced apart in the circumferential direction of the outer tube to define a serpentine flow channel in the one-way flow channel, and the outer tube is provided with a water inlet and a water outlet connected to the serpentine flow channel, and the serpentine flow channel includes a plurality of sub-flow channels arranged along the circumference of the outer tube, and two adjacent sub-flow channels are connected to each other, and the ratio of the cross-sectional area of ​​the connecting port between two adjacent sub-flow channels to the average cross-sectional area of ​​the sub-flow channels is greater than or equal to 1:2.

[0010] In some embodiments, the plurality of flow channel plates include a plurality of first flow channel plates and a plurality of second flow channel plates, the plurality of first flow channel plates and the plurality of second flow channel plates are alternately arranged in the circumferential direction of the outer tube and extend in the axial direction of the outer tube, the first flow channel plate has a first end and a second end opposite to each other in the axial direction of the outer tube, the first end of the first flow channel plate is sealed and connected to the first end flange, and the second end of the first flow channel plate is spaced apart from the second end flange, and the interval is D 1 The second flow channel plate has a first end and a second end opposite to each other in the axial direction of the outer cylinder, the first end of the second flow channel plate is sealed and connected to the second end flange, and the second end of the second flow channel plate is spaced apart from the first end flange, and the interval is D 2 , the average distance between two adjacent flow channel plates is D 3 , the spacing has the same size in the radial direction of the outer cylinder, D 1 / D 3 Greater than or equal to 1 / 2, and / or, D 2 / D 3 Greater than or equal to 1 / 2.

[0011] In some embodiments, the side end of the flow channel plate facing the inner cylinder is welded to the inner cylinder, and the outer cylinder is provided with a plurality of first avoidance grooves corresponding to the plurality of flow channel plates one by one. The flow channel plate extends outward from the welding point with the inner cylinder and extends out from the corresponding first avoidance grooves, and the flow channel plate and the outer cylinder are welded at the first avoidance grooves.

[0012] In some embodiments, the outer cylinder is provided with a second avoidance groove opposite to the reinforcing partition in the radial direction of the inner cylinder, the reinforcing partition extends outward from the welding point with the inner cylinder and extends out from the second avoidance groove, and the reinforcing partition and the outer cylinder are welded at the second avoidance groove.

[0013] In some embodiments, the outer cylinder and the inner cylinder are both arranged horizontally so that the axial directions of the outer cylinder and the inner cylinder extend in a horizontal direction, and the reinforcing partition is arranged at the lowest point of the interval.

[0014] In some embodiments, the water cooling housing further comprises an exhaust valve, the outer cylinder is provided with an exhaust hole connected to the interval, the exhaust valve is arranged at the exhaust hole, and the exhaust hole is located at the highest point of the interval.

[0015] In some embodiments, the water cooling housing further comprises supporting legs, wherein the number of the supporting legs is two, and the two supporting legs are respectively supported on the bottom of the first end flange and the bottom of the second end flange.

[0016] Another aspect of the present invention provides a method for manufacturing a water cooling housing, including:

[0017] Welding a plurality of the flow channel plates to the outer surface of the inner shell in a water return sequence, wherein the flow channel plates extend outward from the welding position with the inner cylinder;

[0018] The outer shell is sleeved on the outer side of the inner shell, so that the plurality of flow channel plates extend out from the first avoidance groove in a one-to-one correspondence, and the flow channel plates and the outer cylinder are welded at the first avoidance groove on the outer side of the outer cylinder;

[0019] Alternatively, the reinforcing baffle is airtightly welded to the first end flange, the second end flange and the outer surface of the inner tube, and the reinforcing baffle extends outward from the welding position with the inner tube;

[0020] The outer shell is sleeved on the outer side of the inner shell so that the reinforcing partition extends out from the second avoidance groove. On the outer side of the outer cylinder, the reinforcing partition is welded to the outer cylinder at the second avoidance groove.

[0021] Another aspect of the present invention provides a magnetic gear including the water-cooling housing in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an axonometric view of a water-cooling housing provided by an embodiment of the present invention.

[0023] Figure 2 is a cross-sectional view of a water-cooling housing provided by an embodiment of the present invention.

[0024] Figure 3 It is an axonometric view of the outer cylinder provided in an embodiment of the present invention.

[0025] Figure 4 It is a partial enlarged view of the reinforced partition provided in the embodiment of the present invention.

[0026] Figure 5 It is a schematic plan view of a serpentine flow channel provided in an embodiment of the present invention.

[0027] Figure 6 The present invention provides a curve diagram of the pressure loss of a water-cooled casing under the condition of a water flow rate of 1.2 kg / s as a function of the cross-sectional area ratio.

[0028] Reference numerals:

[0029] Water-cooled shell 100, inner tube 110, keyway 111, outer tube 120, water inlet 121, water outlet 122, first avoidance groove 123, second avoidance groove 124, first end flange 130, second end flange 140, reinforcing baffle 150, flow channel plate 160, first flow channel plate 161, second flow channel plate 162, serpentine flow channel 170, sub-flow channel 171, connecting port 172, exhaust valve 180, and support leg 190. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] According to the following Figure 1-Figure 6 The water cooling housing 100 and the magnetic gear having the water cooling housing 100 provided by the embodiment of the present invention are described.

[0032] The water-cooling housing 100 includes an inner cylinder 110, an outer cylinder 120, a first end flange 130, a second end flange 140, and a reinforcing partition 150. The outer cylinder 120 is coaxial with the inner cylinder 110. The outer cylinder 120 is sleeved with the inner cylinder 110 and is spaced apart from the inner cylinder 110 in the radial direction to form a space in the radial direction. The space is an annular space. The first end flange 130 and the second end flange 140 are respectively located on both sides of the space and connected to each of the outer cylinder 120 and the inner cylinder 110 to seal the space. Figure 1As shown, the first end flange 130 and the second end flange 140 are opposed to each other in the axial direction of the outer cylinder 120 (the axial direction of the inner cylinder 110 ).

[0033] The reinforcing baffle 150 and the flow channel plate 160 are both arranged in the interval between the outer cylinder 120 and the inner cylinder 110, and are sealed and connected to each of the outer cylinder 120 and the inner cylinder 110. The reinforcing baffle 150 cuts the interval into a one-way flow channel, that is, the reinforcing baffle 150 arranged in the annular interval cuts off the interval, and a one-way flow channel is formed in the interval, and the one-way flow channel has a first end and a second end opposite to each other in the circumferential direction of the outer cylinder 120. The outer cylinder 120 is provided with a water inlet 121 and a water outlet 122, and the water inlet 121 and the water outlet 122 are both connected to the one-way flow channel. Preferably, the water inlet 121 is connected to the first end of the one-way flow channel, and the water outlet 122 is connected to the second end of the one-way flow channel.

[0034] A key groove 111 is provided on the inner circumferential surface of the inner cylinder 110, and the key groove 111 can realize large torque transmission. The reinforcing partition 150 is opposite to the key groove 111 in the radial direction of the inner cylinder 110, and the width of the reinforcing partition 150 in the circumferential direction of the inner cylinder 110 is greater than the width of the key groove 111 in the circumferential direction of the inner cylinder 110. The side end of the reinforcing partition 150 facing the inner cylinder 110 is fixedly connected to the inner cylinder 110 to play the role of reinforcing the key groove part. In other words, the reinforcing partition 150 has the dual functions of isolating the gap between the outer cylinder 120 and the inner cylinder 110 and reinforcing the key groove part. The reinforcing partition 150 isolates the gap between the outer cylinder 120 and the inner cylinder 110 to form a one-way flow channel.

[0035] The water-cooled housing provided by the embodiment of the present invention forms a one-way flow channel for circulating cooling water by arranging a reinforced baffle in the interval between the outer cylinder and the inner cylinder, and uses the reinforced baffle to separate the incoming water and the returning water, so that the cooling water flows in one direction, thereby improving the cooling effect. Since the reinforced baffle is supported between the outer cylinder and the inner cylinder, the water-cooled housing has enhanced overall strength. In addition, the inner cylinder has a keyway, which can realize large torque transmission. At the same time, the reinforced baffle is fixedly connected at a position corresponding to the keyway, which plays a structural reinforcement role, realizes large torque transmission of a thin inner cylinder, does not need to use a tight fit to transmit torque, has low processing accuracy requirements, reduces the manufacturing cost of the equipment, and the thinning of the inner cylinder helps to enhance the heat exchange effect.

[0036] Therefore, the water-cooling housing provided by the embodiment of the present invention has the characteristics of high strength and low cost, and is suitable for magnetic gears, electric motors, and especially for scenarios with high power and high torque output.

[0037] In some embodiments, Figure 1As shown, the water-cooled housing 100 further includes a plurality of flow channel plates 160, which are located in the interval between the inner cylinder 110 and the outer cylinder 120 and are sealed and connected to each of the inner cylinder 110 and the outer cylinder 120. The plurality of flow channel plates 160 are arranged at intervals in the circumferential direction of the outer cylinder to define a serpentine flow channel 170 in the one-way flow channel. The cooling water enters the serpentine flow channel 170 from the water inlet 121 and flows along the serpentine flow channel 170, and is finally discharged from the water outlet 122. The serpentine flow channel 170 includes a plurality of sub-flow channels 171, which are arranged in the circumferential direction of the outer cylinder 120, and two adjacent sub-flow channels 171 are connected to each other, and the ratio of the cross-sectional area of ​​the connecting port 172 between two adjacent sub-flow channels 171 to the average cross-sectional area of ​​the sub-flow channel 171 is greater than or equal to 1:2, so as to avoid excessive pressure loss in the serpentine flow channel 170.

[0038] Multiple flow channel plates 160 form a serpentine flow channel 170 for circulating cooling water. The serpentine flow channel 170 prolongs the flow path and residence time of cooling water, which has the effect of enhancing the heat exchange effect. And because multiple flow channel plates 160 are supported between the outer cylinder and the inner cylinder, the overall strength of the water-cooled housing can be further enhanced. In addition, the optimization of the internal dimensions of the serpentine flow channel 170 can reduce the resistance coefficient of cooling water at the reversing point, thereby achieving the effect of reducing pressure loss.

[0039] In some embodiments, Figure 1 and Figure 5 As shown, the plurality of flow channel plates 160 include a plurality of first flow channel plates 161 and a plurality of second flow channel plates 162, which are alternately arranged in the circumferential direction of the outer cylinder 120 and extend along the axial direction of the outer cylinder 120 (the axial direction of the inner cylinder 110).

[0040] The first flow channel plate 161 has a first end and a second end opposite to each other in the axial direction of the outer cylinder 120. The first end of the first flow channel plate 161 is sealed and connected to the first end flange 130 (for example, sealed and connected by airtight welding), and the second end of the first flow channel plate 161 is spaced apart from the second end flange 140 by a distance D. 1 Specifically, the first flow channel plate 161 is sealedly connected to the inner tube 110, the outer tube 120 and the first end flange 130, and the interval between the first flow channel plate 161 and the second end flange 140 serves as a connecting hole 172 connecting two sub-flow channels 171 adjacent to the first flow channel plate 161. The cooling water flows in a circular direction at the connecting hole 172, bypassing the first flow channel plate 161 from the relatively upstream sub-flow channel 171 and entering the relatively downstream sub-flow channel 171.

[0041] The second flow channel plate 162 has a first end and a second end opposite to each other in the axial direction of the outer cylinder 120. The first end of the second flow channel plate 162 is sealed and connected to the second end flange 140 (for example, sealed and connected by airtight welding). The second end of the second flow channel plate 162 is spaced apart from the first end flange 130 by a distance D. 2 Specifically, the second flow channel plate 162 is sealedly connected to the inner cylinder 110, the outer cylinder 120 and the second end flange 140, and the interval between the second flow channel plate 162 and the first end flange 130 serves as a connecting hole 172 connecting two sub-flow channels 171 adjacent to the second flow channel plate 162. The cooling water flows in a circular direction at the connecting hole 172, bypassing the second flow channel plate 162 from the relatively upstream sub-flow channel 171 and entering the relatively downstream sub-flow channel 171.

[0042] Furthermore, if Figure 5 As shown, the average distance between two adjacent flow channel plates 160 is D 3 , that is, the average distance between the first flow channel plate 161 and the adjacent second flow channel plate 162 in the circumferential direction of the outer cylinder 120 is D 3 , assuming that the distance between the outer cylinder 120 and the inner cylinder 110 is the same in radial direction, D 1 / D 3 Greater than or equal to 1 / 2, and / or, D 2 / D 3 Greater than or equal to 1 / 2, so that the ratio of the cross-sectional area of ​​the connecting port 172 between two adjacent sub-channels 171 to the average cross-sectional area of ​​the sub-channels 171 is greater than or equal to 1:2, so as to reduce the flow resistance of the cooling water in the serpentine channel 170, thereby reducing the pressure loss.

[0043] In some embodiments, Figure 1 and Figure 3 As shown, the side end of the flow channel plate 160 facing the inner cylinder 110 is welded to the inner cylinder 110, and the weld is an airtight weld. The outer cylinder 120 is provided with a plurality of first avoidance grooves 123 corresponding to the plurality of flow channel plates 160 one by one. The flow channel plate 160 extends outward from the welding position with the inner cylinder 110 and extends out from the corresponding first avoidance groove 123. The flow channel plate 160 and the outer cylinder 120 are welded at the first avoidance groove 123, and the weld is an airtight weld.

[0044] The embodiment of the present invention further provides a method for manufacturing the water-cooling housing 100 in the above embodiment: when installing the water-cooling housing 100 provided by the embodiment of the present invention, a plurality of flow channel plates 160 are welded to the outer surface of the inner cylinder 110 in the water return sequence, and then the outer cylinder 120 is sleeved on the outer side of the inner cylinder 110, so that the flow channel plates 160 extend from the first avoidance grooves 123 on the outer cylinder 120 one by one, and the flow channel plates 160 and the outer cylinder 120 can be conveniently welded on the outer side of the outer cylinder 120. Compared with welding the flow channel plates 160 directly on the inner side of the outer cylinder 120, the operation difficulty is greatly reduced, and the quality of the weld is effectively guaranteed.

[0045] It is understandable that when the flow channel plate 160 is welded to the outer surface of the inner tube 110 , the flow channel plate 160 needs to be airtightly welded to the first end flange 130 or the second end flange 140 according to the water return sequence.

[0046] In some embodiments, Figure 2 and Figure 3 As shown, the outer cylinder 120 is provided with a second avoidance groove 124 opposite to the reinforcing partition 150 in the radial direction of the inner cylinder 110, and the reinforcing partition 150 extends outward from the welding point with the inner cylinder 110 and extends out from the second avoidance groove 124. The reinforcing partition 150 and the outer cylinder 120 are welded at the second avoidance groove 124, and the weld is an airtight weld.

[0047] The embodiment of the present invention further provides a method for manufacturing the water-cooling housing 100 in the above embodiment: when installing the water-cooling housing 100 provided by the embodiment of the present invention, the reinforcing baffle 150 is airtightly welded to the outer surface of the first end flange 130, the second end flange 140 and the inner tube 110, the outer tube 120 is sleeved on the outer side of the inner tube 110, and the reinforcing baffle 150 is extended from the second avoidance groove 124, and the reinforcing baffle 150 and the outer tube 120 can be conveniently welded on the outer side of the outer tube 120. Compared with welding the reinforcing baffle 150 directly on the inner side of the outer tube 120, the operation difficulty is greatly reduced, and the quality of the weld can be effectively guaranteed.

[0048] The reinforcing baffle 150 and the flow channel plate 160 are airtightly welded to the inner tube 110, the outer tube 120, the first end flange 130, and the second end flange 140, so that the structural strength of the water-cooled housing 100 is greatly enhanced compared with the tight-fitting assembly method in the related art. In addition, the reinforcing baffle 150 and the flow channel plate 160 act as reinforcing ribs, further enhancing the structural strength of the water-cooled housing 100. In some embodiments, as Figure 1 As shown, the outer cylinder 120 and the inner cylinder 110 are arranged horizontally, so that the axial directions of the outer cylinder 120 and the inner cylinder 110 extend in the horizontal direction. Figure 2As shown, the keyway 111 is arranged at the lowest point of the inner circumference of the inner cylinder 110, and the reinforcing partition 150 is arranged at the lowest point of the interval between the outer cylinder 120 and the inner cylinder 110. The serpentine flow channel 170 has an inlet end and an outlet end opposite to each other in its extension direction, and the inlet end and the outlet end are located on both sides of the reinforcing partition 150, the inlet 121 is connected to the inlet end of the serpentine flow channel 170, and the outlet 122 is connected to the outlet end of the serpentine flow channel 170, so that cooling water can flow from the inlet end along the serpentine flow channel 170 to its outlet end, and the cooling water flows through the entire serpentine flow channel 170, which is conducive to achieving a better heat exchange effect.

[0049] Furthermore, if Figure 1 As shown, the water cooling housing 100 further includes legs 190 for support. Figure 1 In the illustrated embodiment, there are two legs 190 , and the two legs 190 are supported at the bottom of the first end flange 130 and the bottom of the second end flange 140 , respectively.

[0050] like Figure 2 As shown, the reinforcing partition 150 is disposed at the lowest point of the interval between the outer tube 120 and the inner tube 110, and is located in the middle of the two legs 190, so that the water-cooled housing 100 has a strong overall structural strength and minimizes the stress deformation of the water-cooled housing 100.

[0051] In some embodiments, Figure 1 As shown, the water-cooled housing 100 further includes an exhaust valve 180. An exhaust hole connected to the gap between the inner cylinder 110 and the outer cylinder 120 is provided on the outer cylinder 120. The exhaust valve 180 is arranged at the exhaust hole, and the exhaust hole is located at the highest point of the gap to discharge the gas in the serpentine flow channel 170 in time to prevent air from remaining in the flow channel and affecting the heat exchange efficiency.

[0052] Furthermore, if Figure 1 As shown, a plurality of threaded blind holes are provided on the first end flange 130 and the second end flange 140 for connection with other components of the magnetic gear.

[0053] The embodiment of the present invention also provides a magnetic gear having a water-cooled housing 100 according to any of the above embodiments. The magnetic gear having the water-cooled housing 100 has good heat dissipation effect, can transmit large torque through the keyway, has strong overall strength, and has low processing difficulty and manufacturing cost.

[0054] In a specific embodiment, the wall thickness of the remaining part of the inner cylinder 110 except the keyway 111 is 20 mm, the depth of the keyway 111 on the inner cylinder 110 is 9.4 mm, the width of the keyway 111 is 40 mm, the transmission torque is 30000 N.m, the thickness of the reinforcing baffle 150 in the radial direction of the inner cylinder 110 is 35 mm, the width of the reinforcing baffle 150 is 70 mm, the number of flow channel plates 160 is 19, the spacing between the inner cylinder 110 and the outer cylinder 120 is 25 mm, and the length of the sub-flow channel 171 in the axial direction of the inner cylinder 110 is 525 mm.

[0055] When the water flow rate in the serpentine flow channel 170 is 1.2 kg / s, the pressure loss in the serpentine flow channel 170 varies with the cross-sectional area ratio as shown in FIG. Figure 6 As shown. Figure 6 It can be seen that when the ratio of the cross-sectional area of ​​the connecting port 172 to the average cross-sectional area of ​​the sub-channel 171 is less than 50% (i.e., less than 1:2), the pressure loss increases sharply (i.e., the local resistance coefficient increases sharply). Therefore, in the serpentine channel 170, the ratio of the cross-sectional area of ​​the connecting port 172 between two adjacent sub-channels 171 to the average cross-sectional area of ​​the sub-channel 171 is greater than or equal to 1:2, which can effectively avoid excessive pressure loss in the serpentine channel 170.

[0056] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A water-cooling housing, characterized in that: include: An inner cylinder and an outer cylinder, wherein the outer cylinder is coaxial with the inner cylinder, and the outer cylinder is sleeved on the inner cylinder and is spaced apart from the inner cylinder in a radial direction; a first end flange and a second end flange, the first end flange and the second end flange being respectively located at both sides of the interval and connected to each of the outer cylinder and the inner cylinder to seal the interval; A reinforcing baffle, the reinforcing baffle is located in the interval and is sealed and connected to each of the outer tube and the inner tube, the reinforcing baffle cuts the interval into a one-way flow channel, the outer tube is provided with a water inlet and a water outlet connected to the one-way flow channel, the inner circumferential surface of the inner tube is provided with a keyway, the reinforcing baffle is opposite to the keyway in the radial direction of the inner tube, the side end of the reinforcing baffle facing the inner tube is fixedly connected to the inner tube to play a reinforcing role, and the width of the reinforcing baffle in the circumferential direction of the inner tube is greater than the width of the keyway in the circumferential direction of the inner tube.

2. The water cooling housing according to claim 1, characterized in that: It also includes a plurality of flow channel plates, which are located in the interval and sealedly connected to each of the outer tube and the inner tube. The plurality of flow channel plates are spaced apart in the circumferential direction of the outer tube to define a serpentine flow channel in the one-way flow channel. The outer tube is provided with a water inlet and a water outlet connected to the serpentine flow channel. The serpentine flow channel includes a plurality of sub-flow channels arranged along the circumferential direction of the outer tube. Two adjacent sub-flow channels are connected to each other, and the ratio of the cross-sectional area of ​​the connecting port between two adjacent sub-flow channels to the average cross-sectional area of ​​the sub-flow channels is greater than or equal to 1:

2.

3. The water cooling housing according to claim 2, characterized in that: The plurality of flow channel plates include a plurality of first flow channel plates and a plurality of second flow channel plates, the plurality of first flow channel plates and the plurality of second flow channel plates are alternately arranged in the circumferential direction of the outer tube and extend along the axial direction of the outer tube. The first flow channel plate has a first end and a second end opposite to each other in the axial direction of the outer tube, the first end of the first flow channel plate is sealed and connected to the first end flange, and the second end of the first flow channel plate is spaced apart from the second end flange, and the interval is D1. The second flow channel plate has a first end and a second end opposite to each other in the axial direction of the outer cylinder, the first end of the second flow channel plate is sealed and connected to the second end flange, and the second end of the second flow channel plate is spaced apart from the first end flange, and the interval is D2. The average spacing between two adjacent flow channel plates is D3, the spacing has the same size in the radial direction of the outer cylinder, D1 / D3 is greater than or equal to 1 / 2, and / or D2 / D3 is greater than or equal to 1 / 2.

4. The water cooling housing according to claim 2, characterized in that: The side end of the flow channel plate facing the inner cylinder is welded to the inner cylinder, and the outer cylinder is provided with a plurality of first avoidance grooves corresponding to the plurality of flow channel plates one by one. The flow channel plate extends outward from the welding position with the inner cylinder and extends out from the corresponding first avoidance grooves, and the flow channel plate and the outer cylinder are welded at the first avoidance grooves.

5. The water cooling housing according to claim 1, characterized in that: The outer cylinder is provided with a second avoidance groove opposite to the reinforcing partition in the radial direction of the inner cylinder. The reinforcing partition extends outward from the welding point with the inner cylinder and protrudes from the second avoidance groove. The reinforcing partition and the outer cylinder are welded at the second avoidance groove.

6. The water cooling housing according to claim 1, characterized in that: The outer cylinder and the inner cylinder are both arranged horizontally so that the axial directions of the outer cylinder and the inner cylinder extend in the horizontal direction, and the reinforcing partition is arranged at the lowest point of the interval.

7. The water cooling housing according to claim 6, characterized in that: It also includes an exhaust valve. The outer cylinder is provided with an exhaust hole connected to the interval. The exhaust valve is arranged at the exhaust hole. The exhaust hole is located at the highest point of the interval.

8. The water-cooling housing according to claim 1 or 6, characterized in that: It also includes two legs for support, and the two legs are supported on the bottom of the first end flange and the second end flange respectively.

9. A method for manufacturing a water-cooling housing, characterized in that: The water-cooling housing is the water-cooling housing according to claim 4, and the manufacturing method comprises: Welding a plurality of the flow channel plates to the outer surface of the inner shell in a water return sequence, wherein the flow channel plates extend outward from the welding position with the inner cylinder; The outer shell is sleeved on the outer side of the inner shell, so that the plurality of flow channel plates extend out from the first avoidance groove in a one-to-one correspondence, and the flow channel plates and the outer cylinder are welded at the first avoidance groove on the outer side of the outer cylinder; or, The water-cooling housing is the water-cooling housing according to claim 5, and the manufacturing method comprises: Airtightly welding the reinforcing baffle to the first end flange, the second end flange and the outer surface of the inner tube, wherein the reinforcing baffle extends outward from the welding position with the inner tube; The outer shell is sleeved on the outer side of the inner shell so that the reinforcing partition extends out from the second avoidance groove. On the outer side of the outer cylinder, the reinforcing partition is welded to the outer cylinder at the second avoidance groove.

10. A magnetic gear, characterized in that: The invention comprises a water cooling housing according to any one of claims 1 to 8.

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