An intelligent manufacturing method and device for heat pipes

Abstract

The present invention discloses an intelligent manufacturing method and device for heat pipes. The method includes: S1. Controlling a first preparation device to set a liquid injection component at one end of a heat pipe housing. The liquid injection component includes a sealing body for storing a working fluid and a piercing structure for piercing the sealing body. The other end of the heat pipe housing has a first pipe section, and the first pipe section is a pipe section with a powder structure layer; S2. Controlling a second preparation device to evacuate and seal the inside of the heat pipe housing; S3. Controlling a third preparation device to press one end of the heat pipe housing, thereby driving the sealing body to press against the piercing structure, so that the piercing structure pierces the sealing body, and the working fluid flows out of the sealing body. By using the solution of the present application, the requirements for heat dissipation performance of outdoor equipment in a low-temperature environment can be met. At the same time, the vacuum pumping operation does not need to be performed below -40°C, reducing the requirements for the preparation environment and the implementation difficulty.

Description

Technical Field

[0001] This application relates to heat pipe manufacturing technology, particularly an intelligent manufacturing method and device for heat pipes. Background Art

[0002] The climate differences among different latitudes on the earth are significant. Taking winter as an example, the temperatures in many regions usually reach below 0°C. However, communication devices such as outdoor servers and signal towers still need to work outdoors continuously. Due to the external temperature environment, the heat dissipation requirements of these devices working outdoors, especially for the chips in these devices, require the heat pipes in the heat dissipation system to still be able to start and dissipate heat for the device system at a temperature below 0°C. Therefore, research is carried out on the structural design of heat pipes.

[0003] During the research process, it is found that considering changing the type of working fluid inside the heat pipe to meet the above heat dissipation requirements. The commonly used traditional working fluid is basically water, but its physical properties will freeze at 0°C, and the volume of water will increase after freezing, which may cause the product to bulge and deform, and the capillary structure inside will be damaged to a certain extent after bulging, resulting in a poor heat dissipation effect. Therefore, a working fluid that does not freeze below 0°C should be considered. However, when using a working fluid with this physical property to manufacture heat pipes, when a vacuum pumping operation needs to be performed inside the heat pipe, the current ambient temperature is required to be below -40°C. Otherwise, the vaporization speed of this physical property working fluid will be too fast, resulting in unstable internal performance of the heat pipe. That is to say, during the process of manufacturing heat pipes using a working fluid with this physical property, the vacuum pumping operation inside the heat pipe cannot be performed in a normal temperature environment, which greatly increases the difficulty of heat pipe manufacturing and also greatly increases the manufacturing cost. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides an intelligent manufacturing method and device for heat pipes, so that the manufactured heat pipes can work normally in a low-temperature environment, and at the same time, the vacuum pumping operation during the manufacturing process can also be performed in a normal temperature environment.

[0005] In a first aspect, an embodiment of the present application provides an intelligent manufacturing method for heat pipes, which includes the following steps:

[0006] S1. Control the first manufacturing device to set the liquid injection component at one end of the heat pipe housing. Among them, the liquid injection component includes a sealing body for storing the working fluid and a puncturing structure for puncturing the sealing body. The other end of the heat pipe housing has a first pipe section, and the first pipe section is a pipe section with a powder structure layer;

[0007] S2. Control the second preparation device to evacuate and seal the heat pipe housing.

[0008] S3. Control the third preparation device to push one end of the heat pipe housing, thereby driving the seal body to press against the piercing structure, so that the piercing structure pierces the seal body and the working fluid flows out of the seal body.

[0009] In some embodiments, a plurality of notches are provided on the first end face of the seal body facing the piercing structure.

[0010] In some embodiments, the plurality of notches are radially arranged on the first end face to form a plurality of easily breakable regions on the first end face, and the easily breakable regions are fan-shaped.

[0011] In some embodiments, the thickness of the first end face increases from the central position of the first end face along the radial direction to the edge position of the first end face.

[0012] In some embodiments, the easily breakable region includes a first sub-region and a second sub-region. The first sub-region is fan-shaped, the cross-sectional shape of the first sub-region is triangular, the second sub-region is annular, and the cross-sectional shape of the second sub-region is rectangular.

[0013] In some embodiments, at least one reinforcing rib is provided in each of the easily breakable regions.

[0014] In some embodiments, a plurality of protrusions are provided on the second end face of the piercing structure facing the first end face. The number of protrusions is greater than or equal to the number of easily breakable regions, and at least one protrusion corresponds to one easily breakable region.

[0015] In some embodiments, the piercing structure includes a hollow cylinder, and the protrusions are provided on the third end face of the hollow cylinder facing the first end face. The hollow cylinder is used to fixedly arrange the protrusions on the heat pipe housing.

[0016] In some embodiments, the seal body is provided with a liquid injection hole, a sealing plug is provided in the liquid injection hole, and a metal sheet for covering the liquid injection hole is further provided on the seal body.

[0017] In a second aspect, an embodiment of the present application provides an intelligent manufacturing device for a heat pipe. The device includes:

[0018] A first preparation device for arranging a liquid injection component on one end of the heat pipe housing;

[0019] A second preparation device for evacuating and sealing the heat pipe housing;

[0020] A third preparation device for pushing one end of the heat pipe housing;

[0021] A control processing device, including at least one processor, is configured to execute steps for implementing an intelligent manufacturing method for a heat pipe as described above;

[0022] The control processing device is communicatively connected to a first preparation device, a second preparation device, and a third preparation device respectively.

[0023] The present application can achieve at least one of the following technical effects: In the present application, a liquid injection component is provided inside a heat pipe housing. The liquid injection component includes a sealing body for storing a working fluid and a puncturing structure for puncturing the sealing body. After performing the vacuum sealing operation, by pressing one end of the heat pipe housing, the sealing body is driven to press against the puncturing structure, so that the puncturing structure punctures the sealing body, and the working fluid is injected into the heat pipe housing to complete the liquid injection operation. It can be seen that by using the present application, although the working fluid used inside the heat pipe is a working fluid that does not freeze at 0°C or below, the vacuum operation during its manufacturing process can still be performed in a normal temperature environment. This not only meets the heat dissipation performance requirements of outdoor equipment in low temperature environments, but also the vacuum operation does not need to be performed below -40°C, reducing the requirements for the manufacturing environment and the implementation difficulty, and bringing great operational convenience to the staff. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic flow chart of the steps of an intelligent manufacturing method for a heat pipe according to an embodiment of the present application;

[0026] Figure 2 It is a schematic structural diagram of a heat pipe before the liquid injection operation;

[0027] Figure 3 It is a schematic structural diagram of the first end face of the sealing body;

[0028] Figure 4 It is a cross-sectional schematic diagram of the first end face of the sealing body;

[0029] Figure 5 It is a schematic diagram of the dynamic changes before and after the sealing body is punctured;

[0030] Figure 6 It is a schematic structural diagram of an intelligent manufacturing device for a heat pipe according to an embodiment of the present application;

[0031] Figure 7 It is a comparative schematic diagram of different groove shapes and sizes;

[0032] Figure 8 Schematic diagrams of different alignment structures;

[0033] Figure 9 Schematic diagram of the gap shape formed between the first inclined surface and the second inclined surface;

[0034] Figure 10 Preparation schematic diagram for bending and deforming the first base tube. Specific embodiments

[0035] To make the objectives, technical solutions and advantages of the present application clearer, the following will, with reference to the accompanying drawings in the embodiments of the present application, clearly and completely describe the technical solutions of the present application through the embodiments. Obviously, the described embodiments are some, rather than all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0036] For electronic / electrical devices placed outdoors for work, such as servers, signal towers, etc., they still need to work continuously regardless of the outdoor temperature. However, when the ambient temperature is 0°C or below, the commonly used working fluid - water will freeze, and its volume will increase after freezing, resulting in the risk of the product bulging and deforming. Moreover, after bulging, the internal capillary structure will be damaged to a certain extent, resulting in a poor heat dissipation effect. In this way, it is not only difficult to start the heat pipe to dissipate heat for the device at 0°C or below, but also the heat pipe will be damaged. For this reason, it is found in the research process that a working fluid that does not freeze at 0°C or below can be considered.

[0037] In view of this, during the selection of the working fluid, alcohol substances such as anhydrous methanol and anhydrous ethanol are selected as the working fluid. It not only has two states of liquid and gas, but also does not freeze at 0°C or below. However, this alcohol-based working fluid cannot be evacuated at room temperature and must be evacuated in an environment of -40°C or below. If evacuated at room temperature, its vaporization speed will be too fast, resulting in unstable internal performance. But it can only be evacuated in an environment of -40°C or below, which will greatly increase the difficulty and complexity of the preparation operation. To solve this situation, the embodiments of the present application provide an intelligent manufacturing method and device for heat pipes.

[0038] Referring to Figure 1-2 , the embodiments of the present application provide an intelligent manufacturing method for heat pipes, and the steps included in this method are as follows.

[0039] S1. Control the first preparation device to set the liquid injection component at one end of the heat pipe housing. Among them, the liquid injection component 1 includes a sealing body for storing the working fluid and a puncturing structure for puncturing the sealing body. The other end of the heat pipe housing has a first pipe section 2, and the first pipe section 2 is a pipe section with a powder structure layer. The liquid injection component is connected in communication with the first pipe section.

[0040] Specifically, for the working fluid stored in the above-mentioned sealing body, it has been pre-filled in the sealing body before being set at one end of the heat pipe housing. Therefore, before step S1, there may also be a pre-treatment step S0: filling the working fluid into the sealing body.

[0041] In some embodiments, in order to ensure that the puncturing structure can puncture the sealing body, the thickness of the first end face of the sealing body facing the puncturing structure can be made smaller than the thickness of other end faces of the sealing body. Among them, other end faces of the sealing body refer to the end faces of the sealing body that do not face the puncturing structure. And in this implementation manner of the sealing body, the corresponding puncturing method is: using the puncturing structure to pierce the first end face, so that the working fluid flows out of the sealing body.

[0042] However, the puncturing end of the puncturing structure is generally a tip. Therefore, when it pierces the sealing body, the working fluid can only flow out from the puncture hole, which will cause the outflow speed of the working fluid to be slow, and it is difficult for the working fluid to flow out completely, thus reducing the heat dissipation performance of the heat pipe. For this reason, the puncturing method of the embodiment of the present application should try to increase the puncture opening as much as possible.

[0043] In some embodiments, a plurality of score marks are provided on the first end face of the sealing body facing the puncturing structure. By providing a plurality of score marks on the first end face, when the puncturing structure applies a force to press against the first end face, the first end face deforms under the force and the score marks crack, so as to achieve the effect of tearing open the first end face. In this way, compared with the above-mentioned puncturing method, the puncture opening of the puncturing method of this embodiment is larger, which is more conducive to the outflow of the working fluid. It should be noted that in this puncturing method, the puncturing structure will not pierce the first end face. Further, in this embodiment, the thickness of the first end face of the sealing body facing the puncturing structure can also be smaller than the thickness of other end faces of the sealing body.

[0044] In some embodiments, in order to further increase the puncture opening, as Figure 3 shown, a plurality of the score marks 301 are radially arranged on the first end face to form a plurality of easily broken areas on the first end face, and the easily broken areas are fan-shaped.

[0045] Specifically, in this embodiment, the shape of the first end face is circular, and a plurality of notches 301 extend from the center position along the radius towards the edge of the first end face. In this way, when the first end face is pressed, the notches will crack along the center of the circle to obtain a plurality of fan-shaped thin sheets. And during the process of the sealing body pressing towards the puncturing structure, the puncturing structure will continue to apply force to the thin sheets, causing the thin sheets to bend and approach the side wall of the sealing body.

[0046] In some embodiments, in order to make the puncture opening reach the maximum and avoid the thin sheets blocking the working fluid from flowing out of the sealing body, the puncturing end of the puncturing structure should be as close as possible to the inner wall of the sealing body. That is to say, the position of the puncturing end of the puncturing structure corresponding to the first end face should be as close as possible to the edge position of the first end face. In this way, after the puncturing structure continues to apply force to the thin sheets, the thin sheets can be bent and approach the side wall of the sealing body until the thin sheets are attached to the side wall of the sealing body. It can be seen that as Figure 5 shown, the stress point of the first end face is at a position close to the edge. Therefore, the pressure on the first end face will decrease from the edge position along the center position of the circle. Therefore, in order to ensure that the notches can crack completely, the thickness of the first end face increases from the center position (i.e., the center of the circle) of the first end face along the radial direction to the edge position of the first end face. In this way, although the pressure received at the center position is small, the notches corresponding to this area can still be cracked smoothly.

[0047] In some embodiments, as Figure 4 shown, the easily broken area includes a first sub-area and a second sub-area. The first sub-area is fan-shaped, the cross-section 401 of the first sub-area is triangular in shape, the second sub-area is annular, and the cross-section 402 of the second sub-area is rectangular in shape.

[0048] Specifically, the cross-section 401 of the first sub-area is a right triangle, and the length of its short right side is the same as the rectangular width of the cross-section 402. And at this time, if the cross-section of the puncturing end of the puncturing structure is in the shape of a right triangle, then for the rectangular length of the cross-section 402, it can be determined according to the length of the right side (this right side is the right side of the puncturing end close to the inner wall of the sealing body) of the cross-section of the puncturing end, so that when the thin sheets are attached to the inner wall of the sealing body, the puncturing end is completely attached to the thin sheets. In this way, it can be avoided that a concave position is formed between the puncturing section and the thin sheets, resulting in the working fluid being blocked from flowing out by this concave position. Also, as Figure 5 shown, the hypotenuse of the cross-section 401 and the hypotenuse of the cross-section of the puncturing end can be spliced into a flow guiding surface 501, which is conducive to guiding the working fluid to flow out quickly from this flow guiding surface.

[0049] In some embodiments, as Figure 3 shown, at least one reinforcing rib 302 is provided in each of the easily broken areas, so as to avoid the working fluid expanding due to the heat generated during the welding in the head treatment, resulting in the rupture of the sealing body. Further, asFigure 4 As shown, for the shape of the cross-section 403 of the reinforcing rib, it can match the shape of the cross-section 401 of the first sub-region, that is, the shape of the cross-section 403 of the reinforcing rib is also a right triangle, and its hypotenuse fits with the hypotenuse of the cross-section 401.

[0050] In some embodiments, such as Figure 5 As shown, on the second end face of the piercing structure facing the first end face, there are several protrusions 502, the number of the protrusions 502 is greater than or equal to the number of the easily broken regions, and at least one protrusion 502 corresponds to one easily broken region.

[0051] Specifically, the protrusion 502 serves as the piercing end of the piercing structure. Since the position of the piercing end is set as close as possible to the edge of the first end face, in order to increase the stress points on the edge of the first end face, and then increase its pressure resistance to make it more conducive to the crack of the notch, the number of the protrusions 502 can be at least two and arranged along the edge of the first end face; or, when the number of the protrusions 502 is one, in order to achieve the same purpose of increasing the pressure resistance on the edge of the first end face, the shape of the protrusion 502 can be annular, and at the same time, the shape of the cross-section of the protrusion 502 is triangular.

[0052] In some specific embodiments, for the fixed installation of the piercing structure, the piercing structure includes a hollow cylinder 503, and the protrusion 502 is arranged on the third end face of the hollow cylinder 503 facing the first end face, and the hollow cylinder 503 is used to fixedly arrange the protrusion 502 on the heat pipe housing.

[0053] In some specific embodiments, the sealing body is provided with a liquid injection hole, a sealing plug is arranged in the liquid injection hole, and a metal sheet for covering the liquid injection hole is also arranged on the sealing body. Among them, the sealing plug is a silica gel sealing nail. Based on this structure, for the above step S0, it can be specifically: in a low-temperature environment, inject the working fluid into the sealing body through the liquid injection hole, then use the silica gel sealing nail to plug the liquid injection hole, and then cover the metal sheet on the liquid injection hole and weld the metal sheet on the sealing body in an inert gas environment to achieve the sealing of the sealing body and prevent the explosion of the working fluid such as alcohol at the same time.

[0054] S2. Control the second preparation device to evacuate and seal the heat pipe housing. Among them, this evacuation operation can be realized in a normal temperature environment.

[0055] S3. Control the third preparation device to push one end of the heat pipe housing, so as to drive the sealing body to press against the piercing structure, so that the piercing structure pierces the sealing body and makes the working fluid flow out of the sealing body.

[0056] Specifically, the sealing body and the puncturing structure may be in contact with each other, or there may be a certain gap distance between the sealing body and the puncturing structure, which can be selected according to actual preparation requirements and is not specifically limited here.

[0057] It can be seen that the heat pipe prepared by the solution of the present application can still start working smoothly at 0 °C or below, and the vacuum pumping operation in the preparation process does not need to be carried out in a temperature environment below -40 °C, achieving a reduction in the preparation difficulty of such a heat pipe that can start working at low temperatures.

[0058] Referring to Figure 6 , the embodiment of the present application also provides an intelligent manufacturing device for a heat pipe, which includes:

[0059] A first preparation device for setting the liquid injection component at one end of the heat pipe housing;

[0060] A second preparation device for evacuating and sealing the inside of the heat pipe housing;

[0061] A third preparation device for pressing one end of the heat pipe housing;

[0062] A control processing device includes at least one processor for loading a program to execute the steps of implementing the intelligent manufacturing method for a heat pipe in the above method embodiment;

[0063] The control processing device is communicatively connected to the first preparation device, the second preparation device, and the third preparation device respectively.

[0064] For the preparation device described in the embodiment of the present application, the advantages it possesses are the same as the beneficial effects described in the above method embodiment, and will not be specifically elaborated here.

[0065] In addition, in some embodiments, for the powder structure layer provided in the first pipe section 2, it may include at least two powder structures with different particle sizes, which can improve the porosity and conduction performance inside the heat pipe, thereby greatly enhancing the heat dissipation performance of the heat pipe. Therefore, for an intelligent manufacturing method for a heat pipe, it may further include: the preparation step of the first pipe section. Specifically, the preparation step of the first pipe section specifically includes the following sub-steps.

[0066] A0. Pretreatment step: performing a powder filling process with different powder particle sizes on different base pipes to obtain a plurality of raw material base pipes, that is, the powder particles of different raw material base pipes have different sizes.

[0067] A1. Obtaining a cutting coefficient, where the cutting coefficient includes at least the number of the first sub-pipe sections and the length of each first sub-pipe section.

[0068] Specifically, in this step, the raw material base tube filled with powder in advance is cut to obtain different first sub-tube segments. Therefore, the corresponding raw material base tube can be selected according to the type of powder particles required for the sub-tube segments, and the length of the sub-tube segments can also be determined according to the required weight of the powder particles. Among them, different powder particle sizes indicate different types of powder particles.

[0069] A2. After selecting the corresponding raw material base tube according to the type of powder particles required for each first sub-tube segment, control the cutting device to cut the raw material base tube according to the cutting coefficient to obtain a plurality of first sub-tube segments. The raw material base tube is a base tube with grooves and a powder structure layer.

[0070] Specifically, in addition to selecting the raw material base tube according to the powder particle size, the raw material base tube can also be selected according to the groove types required for different first sub-tube segments. Among them, different shapes and / or sizes of the grooves indicate different groove types. Generally, the shape of the groove can be circular, rectangular, trapezoidal or other complex shapes. As Figure 7 shown, the first groove 701 shown in FIG. 7a and the second groove 702 shown in FIG. 7b are both rectangular, but the width of the first groove 701 is smaller than the width of the second groove 702, and the third groove 703 shown in FIG. 7c has a trapezoidal shape, with the narrower side as the opening side. It can be seen that the shape and / or size of the groove can be selected according to actual needs. That is, in some embodiments, the grooves provided in at least two of the plurality of first sub-tube segments are different.

[0071] It can be seen that for the plurality of first sub-tube segments obtained by cutting different raw material base tubes, different sub-regions in the heating region can also have grooves with different structures and / or sizes, so that the grooves in different sub-regions can be selected as needed to improve the permeability of the overall grooves, and the compatibility and adaptability of the heat pipes prepared in this way are higher.

[0072] In some embodiments, in order to ensure that the grooves in two adjacent first sub-tube segments are connected after splicing, the alignment structure technology is adopted in this embodiment. In this embodiment, the cutting coefficient further includes the position information of the first sub-tube segments, and the step A2 specifically includes the following steps.

[0073] A201. Determine the cutting methods at both ends of the corresponding first sub-tube segment according to the position information of the first sub-tube segment, where the cutting methods are determined according to the alignment structure between two first sub-tube segments located adjacent to each other.

[0074] Specifically, for the first sub-tube segments filled with powders of different particle sizes, their positions correspond to the heat distribution emitted by the heat source. Therefore, the first sub-tube segments filled with powders of different particle sizes have corresponding positions within the heat pipe, thus determining the splicing and embedding order among several first sub-tube segments. Therefore, by determining the cutting method according to the alignment structure in this step and then cutting the raw material base tube, the alignment structure can be set between two adjacent first sub-tube segments. Among them, for the cutting method, it at least includes the feed route and / or rotation angle of the cutting tool. The rotation angle mainly determines the inclination of the cutting surface, and the feed route mainly determines the structural shape of the cutting surface.

[0075] A202. After controlling the cutting device to cut the raw material base tube according to the cutting methods at both ends of the first sub-tube segment, the length and quantity of the first sub-tube segment, several first sub-tube segments are obtained.

[0076] Implementing the setting of the alignment structure through the above steps is not only simple and convenient, but also can be achieved by adjusting the parameters of the cutting device, without the need to purchase additional equipment or replace different types of cutting blades, reducing the cost expenditure.

[0077] In some embodiments, for the above alignment structure, there are the following two implementation methods.

[0078] ①. The alignment structure is a concave-convex alignment structure

[0079] Specifically, for the concave-convex alignment structure, it is mainly that one end of a first sub-tube segment among two first sub-tube segments at adjacent positions has a protrusion, and one end of the other first sub-tube segment among two first sub-tube segments at adjacent positions has a groove matching the protrusion. For this method, it is mainly achieved by adjusting and determining the feed route of the cutting tool to perform cutting.

[0080] ②. The alignment structure is an inclined-plane alignment structure

[0081] Specifically, for the inclined-plane alignment structure, it is mainly that one end of a first sub-tube segment among two first sub-tube segments at adjacent positions has a first inclined plane, and one end of the other first sub-tube segment among two first sub-tube segments at adjacent positions has a second inclined plane matching the first inclined plane. For this method, it is mainly achieved by adjusting the rotation angle of the cutting tool to perform cutting. It can be seen that this implementation method only needs to adjust the rotation angle for inclined cutting. Compared with the first method above that requires cutting along the feed route, the cutting processing efficiency of this method is higher and the operation convenience is also higher.

[0082] In some embodiments, the alignment structures between two first sub-tube segments located at different adjacent positions are different. Specifically, the alignment structure between the two first sub-tube segments located at the i-th position and the (i + 1)-th position is the first alignment structure, and the alignment structure between the two first sub-tube segments located at the (i - 1)-th position and the i-th position is the second alignment structure, and the first alignment structure is different from the second alignment structure. Further, for the difference in the alignment structures, it may refer to the difference in shape, size, and the inclination of the inclined surface. As Figure 8 shown, the second alignment structure is an inclined surface alignment structure, and the first alignment structure is a concave-convex alignment structure; and the inclination between the inclined surface 801 at one end of the first sub-tube segment located at the (i - 1)-th position and the inclined surface 802 at the other end of the first sub-tube segment located at the (i - 1)-th position is different, that is, it represents the third alignment structure between the two first sub-tube segments located at the (i - 2)-th position and the (i - 1)-th position, which is different from the second alignment structure; similarly, one end of the first sub-tube segment located at the i-th position has a square protrusion 803, one end of the first sub-tube segment located at the (i + 1)-th position has a square groove 804 that matches the square protrusion 803, and the other end of the first sub-tube segment located at the (i + 1)-th position has an arc protrusion 805, that is, it represents that the first alignment structure is different from the fourth alignment structure between the two first sub-tube segments located at the (i + 1)-th position and the (i + 2)-th position in terms of concave-convex shape. And so on, for the fourth alignment structure, its shape can also be square, but its size is different from the sizes of the square groove 804 and the square protrusion 803, which also indicates that these two alignment structures are different.

[0083] It can be seen that by making the alignment structures different, when the splicing order of the first sub-tube segments is incorrect, it will not be spliced successfully (such as the fitting between the protrusion and the groove or the fitting between the first inclined surface and the second inclined surface), which may cause the first sub-tube segment to be set at the wrong position. That is to say, this method can avoid the situation where the first sub-tube segment is placed wrongly due to the incorrect splicing order, which can improve the accuracy of the heat pipe preparation work.

[0084] In some embodiments, among several first sub-tube segments, the powder particles filled in the first sub-tube segment corresponding to the heat source concentration area have the largest size, and for the powder particles filled in the remaining first sub-tube segments, their sizes can be adaptively selected according to the structure, heat dissipation requirements, etc. It can be seen that such large-sized powder particles can increase the porosity to improve the heat absorption effect, and filling the sub-tube segments with smaller and different-sized powder particles can improve the conduction performance while increasing the porosity, thereby greatly improving the heat dissipation performance of the heat pipe. In this embodiment, after experimental testing of this heat pipe structure, it can improve the heat dissipation of the heat pipe by more than 30%.

[0085] A3. After the discharging device sequentially splices a plurality of first sub-tube segments and nests them into the first base tube, a second tube segment is obtained, where the material types of the raw material base tube and the first base tube are different. At this time, the obtained second tube segment is the first tube segment 2 to be prepared. As Figure 2 shown, the obtained second tube segment has a first sub-tube segment with a first powder structure layer 202, a first sub-tube segment with a second powder structure layer 203, a first sub-tube segment with a third powder structure layer 204... a first sub-tube segment with an nth powder structure layer 205, where the powder structures of the first powder structure layer 202 to the nth powder structure layer are all different, and n is the total number of sub-tube segments.

[0086] In some embodiments, when a plurality of first sub-tube segments are placed on the splicing platform, the positions of the alignment structures between adjacent two sub-tube segments are basically staggered, and the tube body is basically cylindrical. Therefore, by axially rotating the first sub-tube segment, the positions of the alignment structures between adjacent two sub-tube segments can be aligned to achieve successful splicing between the two. Therefore, the step of sequentially splicing a plurality of first sub-tube segments in step A3 specifically includes the following steps.

[0087] A301. Rotate at least one of the two first sub-tube segments located adjacent to each other to align the position of the protrusion and the groove and / or align the position of the first inclined surface and the second inclined surface, and splice the two first sub-tube segments located adjacent to each other.

[0088] Specifically, for splicing two adjacent first sub-tube segments, there are two situations: successful splicing and failed splicing. Among them, if the tube segment formed by two adjacent first sub-tube segments does not need to have a bending position, then during the splicing process, the alignment structures of the two adjacent first sub-tube segments can be aligned, so that the two adjacent first sub-tube segments are fitted and spliced, that is, there is no gap between the two adjacent first sub-tube segments. At this time, it means successful splicing, otherwise, it means failed splicing. Therefore, the step A301 can specifically include the following steps.

[0089] A3011. Rotate at least one of the two first sub-tube segments located adjacent to each other and move the two first sub-tube segments located adjacent to each other towards each other. That is, make the two adjacent first sub-tube segments approach each other while rotating relatively. Then, when the positions of the alignment structures are aligned, the two can be fitted and spliced.

[0090] A3012. After at least one first sub-tube segment rotates at least one circle, judge whether there is a gap between the two first sub-tube segments located adjacent to each other.

[0091] Alternatively, for A3012, it can be: when the rotation time of at least one first sub-segment reaches a preset time threshold, determine whether there is a gap between two first sub-segments located adjacent to each other. Among them, the designed time threshold can make at least one first sub-segment rotate two or more circles, which can further ensure the detection accuracy of whether the splicing is successful.

[0092] A3013. When it is determined that there is no gap between two first sub-segments located adjacent to each other, it is determined that the splicing between the two first sub-segments located adjacent to each other is successful.

[0093] A3014. When it is determined that there is a gap between two first sub-segments located adjacent to each other, it is determined that the splicing between the two first sub-segments located adjacent to each other fails, and a warning message is issued.

[0094] In some embodiments, if the pipe segment formed by two adjacent first sub-segments has a bending position, then the alignment structure between the two adjacent sub-segments is an inclined surface alignment structure, and the first inclined surface of one end of a first sub-segment and the second inclined surface of one end of the other first sub-segment have different inclination degrees. Therefore, after cutting according to different inclination degrees, the shape of the gap formed between the first inclined surface and the second inclined surface will be the same as the preset shape. As Figure 9 shown, the first gap 901 formed between the first inclined surface and the second inclined surface is the same as the preset triangular shape, indicating that these two first sub-segments are already aligned. Therefore, during the rotational movement of the first sub-segment in this embodiment, it can be determined whether the splicing is successful by whether the shape of the gap formed between the first inclined surface and the second inclined surface is the preset shape. That is, in this embodiment, step A301 further specifically includes the following steps.

[0095] A3015. When it is determined that there is a gap between two first sub-segments located adjacent to each other, determine whether the shape of the gap formed by the first inclined surface and the second inclined surface is the same as the preset shape.

[0096] A3016. When it is determined that the shape of the gap formed by the first inclined surface and the second inclined surface is the same as the preset shape, it is determined that the splicing between the two first sub-segments located adjacent to each other is successful.

[0097] A3017. When it is determined that the shape of the gap formed by the first inclined surface and the second inclined surface is not the same as the preset shape, it is determined that the splicing between the two first sub-segments located adjacent to each other fails, and a warning message is issued.

[0098] It can be seen that through the above-mentioned gap identification and judgment method, the correctness of heat pipe preparation is further ensured.

[0099] In addition, regarding whether there is a gap as described above and whether the shape of the gap is the same as the preset shape, it can be determined by using an image capturing device to capture images of two adjacent first sub-tube segments, and then through the line positioning and recognition technology in the image, based on the recognized line slope and its position, whether there is a gap between the two adjacent first sub-tube segments and whether the shape of the existing gap is the same as the preset shape can be determined.

[0100] In some embodiments, after the splicing is successful, the following steps are further included after step A3016.

[0101] A3018. When it is determined that the shape of the gap formed by the first inclined surface and the second inclined surface is the same as the preset shape, the subsequent first sub-tube segment among the two adjacent first sub-tube segments located at adjacent positions in the first base tube is pushed towards the previous first sub-tube segment in the first base tube, so that the first inclined surface is attached to the second inclined surface, thereby realizing the bending and splicing of the first base tube.

[0102] Specifically, for the previous first sub-tube segment, it refers to the first sub-tube segment that enters the first base tube first. Similarly, the subsequent first sub-tube segment refers to the first sub-tube segment that enters the first base tube later among the two adjacent first sub-tube segments. After pushing the two adjacent first sub-tube segments to the corresponding positions in the first base tube, continue to push so that the first inclined surface is attached to the second inclined surface, thereby bending the first base tube, as Figure 10 shown. It can be seen that compared with the manufacturing of the traditional integrally formed heat pipe housing, if the bending shape / degree of the bending position does not meet the actual situation, a complete housing needs to be remanufactured. However, for this embodiment, it only needs to cut out sub-tube segments that meet the requirements of the inclined surface inclination from the raw material base tube according to the needs and splice them again. It can be seen that this can flexibly and conveniently realize the bending and forming of the tube body, and has a high flexibility in modification and adjustment, and can also save time and cost.

[0103] In some embodiments, the material of the raw material base tube is copper metal, and the material of the first base tube is aluminum metal. It can be seen that the heat pipe prepared in this way has a structure with a copper tube layer on the inner side + an aluminum tube layer on the outer side. Compared with the copper tube layer of the traditional heat pipe, the material required for the copper tube layer in this embodiment can be reduced, thereby saving the material input cost, and the aluminum tube is softer and is easy to realize the formation of shapes such as bending of the tube body and embedding of slots.

[0104] In some embodiments, after several first sub-tube segments are all nested into the first base tube, it is necessary to fix the first base tube and the first sub-tube segments to each other. Therefore, for step A3, the following steps are further included.

[0105] A3019. Perform a fixing process between the first base tube and the first sub-tube segments.

[0106] Specifically, the first base tube and the first sub-tube segment can be fixed by an adhesive. Alternatively, in this embodiment, annular grooves are provided on the outer sides of a plurality of first sub-tube segments. Therefore, step A3019 may include: rolling the second tube segment through a rolling press to cause a shape change on the first base tube, and the shape matches the annular groove. That is to say, since the hardness of copper metal is higher than that of aluminum metal, during rolling, the first base tube made of aluminum metal is more likely to deform, and it does not affect the internal copper tube segment structure. At this time, it is equivalent to deforming a convex structure protruding towards the annular groove at a position corresponding to the annular groove on the first base tube, thus forming a clamping structure between the first base tube and the first sub-tube segment, thereby realizing the mutual fixation between the first base tube and the first sub-tube segment.

[0107] Or, as Figure 2 shown, step S3019 may also include: rolling the corresponding position on the second tube segment through a rolling press to form a narrow opening 201 at the corresponding position, so as to limit a plurality of first sub-tube segments and at the same time realize the mutual fixation between the first base tube and the first sub-tube segments, and there is no need to weld and fix a plurality of first sub-tube segments. This method has a high convenience and operability.

[0108] It should be noted that for the above-mentioned annular groove and narrow opening, both can exist simultaneously or either one can be selected as needed.

[0109] It can be seen that by adopting the above-mentioned preparation method of multi-segment powder filling for tube segments to prepare tube segments, the heat pipe prepared can improve the heat dissipation performance of the heat dissipation tube, meet the increasingly high heat dissipation requirements at present, and at the same time has the advantages of flexibility, convenient operation, cost reduction, and saving preparation time.

[0110] Note that the above is only a preferred embodiment of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described here. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments. Without departing from the concept of the present application, more other equivalent embodiments can be included, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. An intelligent manufacturing method for a heat pipe, characterized in that: The method comprises the following steps: S1, controlling a first preparation device to set a liquid injection component at one end of a heat pipe housing, wherein the liquid injection component includes a sealing body for storing a working fluid and a puncturing structure for puncturing the sealing body, and the other end of the heat pipe housing has a first pipe segment, wherein the first pipe segment is a pipe segment with a powder structure layer; S2, controlling the second preparation device to evacuate the heat pipe shell and perform end sealing treatment; S3, controlling the third preparation device to push one end of the heat pipe shell, thereby driving the sealing body to press against the puncture structure, so that the puncture structure punctures the sealing body, allowing the working fluid to flow out of the sealing body; The sealing body is provided with a plurality of notches on the first end surface facing the piercing structure, and the plurality of notches are radially arranged on the first end surface so as to form a plurality of easily broken areas on the first end surface, and the easily broken areas are fan-shaped; the thickness of the first end surface increases along the radial direction from the center position of the first end surface to the edge position of the first end surface, and the position of the piercing end of the piercing structure corresponding to the first end surface is close to the edge position of the first end surface; The preparation step of the first tube segment specifically includes the following sub-steps: obtaining a cutting coefficient, wherein the cutting coefficient includes at least the number of first sub-tube segments and the length of each first sub-tube segment; selecting a corresponding raw material base tube according to the type of powder particles required for each first sub-tube segment, and controlling a cutting device to cut the raw material base tube according to the cutting coefficient to obtain a plurality of first sub-tube segments, wherein the raw material base tube is a base tube having a groove and a powder structure layer; controlling a discharging device to sequentially splice and nest the plurality of first sub-tube segments into the first base tube to obtain a second tube segment, wherein the material type of the raw material base tube is different from that of the first base tube; the size of the powder particles filled in the first sub-tube segment corresponding to the heat source concentration area among the plurality of first sub-tube segments is the largest; and the grooves provided in at least two of the plurality of first sub-tube segments are different.

2. The method according to claim 1, characterized in that The breakable region includes a first sub-region and a second sub-region, the first sub-region is fan-shaped, and the cross-section of the first sub-region is triangular, and the second sub-region is ring-shaped, and the cross-section of the second sub-region is rectangular.

3. The method according to claim 2, characterized in that Each of the breakable areas is provided with at least one reinforcing rib.

4. The method according to claim 1, characterized in that The second end surface of the puncture structure facing the first end surface is provided with a plurality of protrusions, the number of the protrusions is greater than or equal to the number of the easily breakable areas, and at least one protrusion corresponds to a easily breakable area.

5. The method according to claim 4, characterized in that The puncture structure comprises a hollow cylinder, the protrusion is arranged on a third end surface of the hollow cylinder facing the first end surface, and the hollow cylinder is used to fix the protrusion on the heat pipe shell.

6. The method according to any one of claims 1 to 5, characterized in that: The sealing body is provided with a liquid injection hole, a sealing plug is provided in the liquid injection hole, and a metal sheet for covering the liquid injection hole is also provided on the sealing body.

7. An intelligent manufacturing device for heat pipes, characterized in that: The device includes: A first preparation device, used to arrange the liquid injection component on one end of the heat pipe shell; The second preparation device is used to evacuate the heat pipe shell and perform end sealing treatment; A third preparation device is used to push one end of the heat pipe shell; A control processing device, comprising at least one processor, for executing the steps of implementing the method according to any one of claims 1 to 6; The control processing device is communicatively connected with the first preparation device, the second preparation device and the third preparation device respectively.

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