Gravity heat pipe radiator and electronic equipment

Abstract

The present invention provides a gravity heat pipe radiator and an electronic device, and relates to the field of heat dissipation technology. The gravity heat pipe radiator includes a box body, a chamber is arranged in the box body, and a liquid phase channel and a gas phase channel are arranged in the chamber. The liquid phase pipeline and the gas phase pipeline are respectively arranged in the box body, and the gas phase pipeline is connected to the chamber and the liquid phase pipeline at the same time. The liquid phase channel is connected to the liquid phase pipeline, and the liquid phase channel has a first outlet to communicate with the chamber. The gas phase channel is located on the side of the chamber close to the heat source, and the gas phase channel has a second outlet to communicate with the chamber. The projection of the first outlet on the preset plane and the projection of the second outlet on the preset plane are staggered, or the projection of the liquid phase channel on the preset plane and the projection of the gas phase channel on the preset plane intersect each other, and the preset plane is perpendicular to the gravity direction. The gravity heat pipe radiator has a high heat exchange efficiency, so that the electronic device including the above-mentioned gravity heat pipe radiator has a good heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the field of heat dissipation technology, and in particular to a gravity heat pipe radiator and electronic equipment. Background Art

[0002] As an effective heat exchange technology, gravity heat pipe technology has been widely used in heat dissipation of electrical equipment, cooling of electronic devices, heat dissipation of semiconductor components and large-scale integrated circuit boards. However, the rapid development of electronic technology has put forward higher heat exchange requirements for heat pipe technology, such as heat dissipation of high heat flux density server chips and high-power IGBT (Insulated Gate Bipolar Transistor). However, the heat exchange efficiency of most current gravity heat pipe radiators needs to be improved. Summary of the invention

[0003] The purpose of the present invention includes providing a gravity heat pipe radiator with higher heat exchange efficiency.

[0004] The present invention also aims to provide an electronic device with good heat dissipation effect.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, an embodiment of the present invention provides a gravity heat pipe radiator, comprising:

[0007] A box body used for connecting to a heat source, wherein a chamber is arranged in the box body;

[0008] The liquid phase pipeline and the gas phase pipeline are respectively arranged above the box body, one end of the gas phase pipeline is connected to the chamber, and the other end is used to connect to the liquid phase pipeline;

[0009] A liquid phase channel is disposed in the chamber, the liquid phase channel is communicated with the liquid phase pipeline, and the liquid phase channel has a first outlet to communicate with the chamber, so as to be able to guide the condensed liquid phase into the chamber;

[0010] A gas phase channel is provided in the chamber, the gas phase channel is located on a side of the chamber close to the heat source, and the gas phase channel has a second outlet to communicate with the chamber, so that the liquid phase in the gas phase channel can be heated and vaporized and then overflow through the gas phase channel;

[0011] The projection of the first outlet on the preset plane and the projection of the second outlet on the preset plane are staggered with each other, and the preset plane is perpendicular to the direction of gravity.

[0012] In an optional embodiment, the bottom surface of the box body is used to connect to the heat source, the gas phase channel is arranged at the bottom of the chamber, and the liquid phase channel is arranged above the gas phase channel.

[0013] In an optional embodiment, the gas phase pipeline is arranged at a position of the box body close to the second outlet.

[0014] In a second aspect, an embodiment of the present invention provides a gravity heat pipe radiator, comprising:

[0015] A box body used for connecting to a heat source, wherein a chamber is arranged in the box body;

[0016] The liquid phase pipeline and the gas phase pipeline are respectively arranged above the box body, one end of the gas phase pipeline is connected to the chamber, and the other end is used to connect to the liquid phase pipeline;

[0017] A liquid phase channel is disposed in the chamber, the liquid phase channel is connected to the liquid phase pipeline, and the liquid phase channel is connected to the chamber, so that the condensed liquid phase can be drained into the chamber;

[0018] A gas phase channel is provided in the chamber, the gas phase channel is located on a side of the chamber close to the heat source, and the gas phase channel is connected to the chamber, so that the liquid phase in the gas phase channel can be heated and vaporized and then overflow through the gas phase channel;

[0019] The projection of the liquid phase channel on the preset plane and the projection of the gas phase channel on the preset plane intersect each other, and the preset plane is perpendicular to the gravity direction.

[0020] In an optional embodiment, the liquid phase channel extends along a first preset direction, the gas phase channel extends along a second preset direction, and there is an angle between the first preset direction and the second preset direction.

[0021] In an optional implementation, the first preset direction is perpendicular to the second preset direction.

[0022] In an optional embodiment, the liquid phase channel includes at least two first shunt tubes arranged in parallel, each first shunt tube is connected to the liquid phase pipeline, the first shunt tube extends along a first preset direction, and each first shunt tube has a first outlet.

[0023] In an optional embodiment, the gas phase channel includes at least two second diverter tubes arranged in parallel, each second diverter tube is connected to the gas phase pipeline, the second diverter tube extends along a second preset direction, and each second diverter tube has a second outlet.

[0024] In an optional embodiment, each second diversion tube has a second outlet at both ends, the number of gas phase pipelines is two and the two gas phase pipelines are arranged opposite to each other along a second preset direction, one gas phase pipeline corresponds to the second outlet at one end of the second diversion tube, and the other gas phase pipeline corresponds to the second outlet at the other end of the second diversion tube.

[0025] In a third aspect, an embodiment of the present invention provides an electronic device, comprising the above-mentioned gravity heat pipe radiator.

[0026] The beneficial effects of the embodiments of the present invention include:

[0027] The gravity heat pipe radiator includes a box body, a liquid phase pipeline and a gas phase pipeline for connecting to a heat source. A chamber is provided in the box body, and a liquid phase channel and a gas phase channel are provided in the chamber. The liquid phase pipeline and the gas phase pipeline are respectively arranged above the box body, one end of the gas phase pipeline is connected to the chamber, and the other end is used to connect to the liquid phase pipeline. The liquid phase channel is connected to the liquid phase pipeline, and the liquid phase channel has a first outlet to communicate with the chamber, so that the condensed liquid phase can be drained into the chamber. The gas phase channel is located on the side of the chamber close to the heat source, and the gas phase channel has a second outlet to communicate with the chamber, so that the liquid phase in the gas phase channel can be heated and vaporized and overflow through the gas phase channel. The projection of the first outlet on the preset plane and the projection of the second outlet on the preset plane are staggered, or the projection of the liquid phase channel on the preset plane and the projection of the gas phase channel on the preset plane intersect each other, and the preset plane is perpendicular to the direction of gravity. The electronic device includes the above-mentioned gravity heat pipe radiator. In the present gravity heat pipe radiator, the condensed liquid phase flows into the chamber through the first outlet of the liquid phase channel and fills the entire chamber. After the liquid phase enters the gas phase channel, it is heated and vaporized in the gas phase channel and overflows from the gas phase channel through the second outlet in the form of bubbles. At the same time, the projections of the first outlet of the liquid phase channel and the second outlet of the gas phase channel on the preset plane are staggered, or the projections of the liquid phase channel on the preset plane and the projections of the gas phase channel on the preset plane are intersected with each other, thereby avoiding crosstalk between the liquid phase flowing out of the liquid phase channel and the gas phase overflowing the gas phase channel. Therefore, the flow resistance between the two phases can be reduced, and the heat exchange efficiency of the entire gravity heat pipe radiator can be improved, so that the electronic equipment equipped with the present gravity heat pipe radiator has a good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural schematic diagram of a gravity heat pipe radiator when the angle between the first preset direction and the second preset direction is a right angle in an embodiment of the present invention;

[0030] Figure 2 In the embodiment of the present invention Figure 1 A top view of the distribution of liquid phase channels and gas phase channels corresponding to the structure;

[0031] Figure 3It is a structural schematic diagram of a gravity heat pipe radiator when the angle between the first preset direction and the second preset direction is not a right angle in an embodiment of the present invention;

[0032] Figure 4 In the embodiment of the present invention Figure 3 A top view of the distribution of liquid phase channels and gas phase channels corresponding to the structure.

[0033] Icon: 100 - gravity heat pipe radiator; 110 - housing; 112 - chamber; 120 - liquid phase pipeline; 130 - gas phase pipeline; 140 - liquid phase channel; 142 - first outlet; 144 - first diverter; 160 - gas phase channel; 162 - second outlet; 164 - second diverter. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0039] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0040] Please refer to Figure 1 The present embodiment provides a gravity heat pipe radiator 100, which includes a housing 110 for connecting to a heat source, a liquid phase pipeline 120, and a gas phase pipeline 130. A chamber 112 is provided in the housing 110, and a liquid phase channel 140 and a gas phase channel 160 are provided in the chamber 112. The liquid phase pipeline 120 and the gas phase pipeline 130 are respectively connected to the top of the housing 110. One end of the gas phase pipeline 130 is connected to the chamber 112, and the other end is used to connect to the liquid phase pipeline 120. The liquid phase channel 140 is connected to the liquid phase pipeline 120, and the liquid phase channel 140 has a first outlet 142 to communicate with the chamber 112, so that the condensed liquid phase can be drained into the chamber 112. The gas phase channel 160 is located on one side of the chamber 112 close to the heat source, and has a second outlet 162 to communicate with the chamber 112, so that the liquid in the gas phase channel 160 can be heated and vaporized and then overflow through the gas phase channel 160. The projection of the first outlet 142 on the preset plane and the projection of the second outlet 162 on the preset plane are staggered, and the preset plane is perpendicular to the gravity direction f.

[0041] Among them, the heat source is an electronic device that is easy to generate heat, such as a high heat flux density server chip. In this embodiment, in order to better match the structure and shape of the electronic device, the box 110 is a rectangular parallelepiped structure, and the interior of the rectangular parallelepiped is hollow, forming a rectangular chamber 112. In other embodiments, the box 110 and the chamber 112 can also adopt structures such as cylinders, and only need to be reasonably set according to actual conditions. In this embodiment, the bottom surface of the box 110 is used to connect to the heat source. As a result, the gas phase channel 160 is arranged at the bottom of the chamber 112, so as to be closer to the heat source, and the liquid phase channel 140 is arranged above the gas phase channel 160 to reduce the influence of the heat source, that is to say, in this embodiment, the liquid phase channel 140 and the gas phase channel 160 are arranged in sequence along the gravity direction f. It can be understood that in other embodiments, in the horizontal direction (i.e., the direction perpendicular to the gravity direction f), if the position of the heat source is more concentrated on one side of the bottom surface of the box body 110, a gas phase channel 160 can be set on the side close to the heat source in the chamber 112, and a liquid phase channel 140 can be set on the other side of the chamber 112. At the same time, there is no limitation on the arrangement order of the liquid phase channel 140 and the gas phase channel 160 in the vertical direction (i.e., the gravity direction f), and the directions of the first outlet 142 and the second outlet 162 are opposite to each other, which can also reduce the gas-liquid crosstalk resistance and improve the heat exchange effect.

[0042] In the present embodiment, the liquid phase pipeline 120 is vertically arranged above the housing 110 and is connected to the liquid phase channel 140, so that the condensed liquid phase flows from the liquid phase pipeline 120 into the chamber 112 under the action of gravity. In other embodiments, the liquid phase pipeline 120 may also be arranged obliquely above the housing 110, and the specific design may be made according to the installation environment. Specifically, in order to improve the heat exchange efficiency and increase the fluid flow rate, the number of liquid phase pipelines 120 is at least two, and at least two liquid phase pipelines 120 are arranged at intervals along a first preset direction (ab direction shown in the figure), and each liquid phase pipeline 120 is connected to the liquid phase channel 140. The liquid phase pipeline 120 may be in the shape of a rectangular parallelepiped, such as Figure 1 , multiple cuboid liquid phase pipelines 120 are arranged in parallel, and the spacing between adjacent liquid phase pipelines 120 is determined by the installation space and the required heat dissipation effect. The liquid phase pipeline 120 can also be cylindrical, such as Figure 3 , it only needs to match the surrounding installation environment, that is, it can be designed according to actual needs. At the same time, if the heat exchange demand is limited, only one liquid phase pipeline 120 can be set, such as Figure 3 A liquid phase pipeline 120 is vertically connected to the housing 110 and communicated with the liquid phase channel 140, so that the condensed liquid phase can enter the chamber 112 through the liquid phase channel 140. In addition, the liquid phase pipeline 120 can be provided with heat dissipation fins to enhance the heat dissipation effect, or it can be provided without heat dissipation fins according to actual needs.

[0043] In this embodiment, the gas phase pipeline 130 is vertically connected to the top of the box 110, one end of which is connected to the chamber 112, and the other end is used to connect to the liquid phase pipeline 120, thereby forming a circulation loop. In other embodiments, the gas phase pipeline 130 can also be arranged obliquely above the box 110, and can be specifically designed according to the installation environment. Among them, the gas phase pipeline 130 can be connected to the liquid phase pipeline 120 through a cooling unit (not shown in the figure), and the cooling unit can be a section of condenser exposed to the external environment to directly release heat, or it can be a condensation chamber, which only needs to enable the hot gas phase to release heat at the cooling unit, condense into a liquid phase, and reflux through the liquid phase pipeline 120. In this circulation loop, the side where the chamber 112 is located is the heat-absorbing side, which is used to absorb the excess heat generated by the heat source; the gas phase generated by the heat in the chamber 112 rises along the direction e through the gas phase pipeline 130, enters the cooling unit to release heat, and then recondenses into the liquid phase and flows back into the chamber 112 along the direction f through the liquid phase pipeline 120, and the reciprocating cycle is realized to achieve heat exchange. When the gas phase is generated in the chamber 112, it overflows through the second outlet 162 of the gas phase channel 160 in the form of bubbles. The gas phase pipeline 130 is set at a position close to the second outlet 162 of the box 110 to facilitate the gas phase to quickly overflow the chamber 112, further improving the heat exchange efficiency. At the same time, the air pressure generated in the gas phase pipeline 130 can act on the liquid phase pipeline 120 to accelerate the circulation of the fluid. In addition, similar to the liquid phase pipeline 120, only one gas phase pipeline 130 can be set, or multiple gas phase pipelines can be set; the gas phase pipeline 130 can adopt a rectangular structure, or other structures such as a cylinder; the gas phase pipeline 130 can be provided with heat dissipation fins, or not, and the above structures must be specifically designed according to the actual installation space and the required heat dissipation effect.

[0044] Please refer to Figure 2 , a liquid phase channel 140 and a gas phase channel 160 are provided in the chamber 112. Specifically, the liquid phase channel 140 has a first outlet 142 to communicate with the chamber 112, and the gas phase channel 160 has a second outlet 162 to communicate with the chamber 112. The projection of the first outlet 142 on the preset plane and the projection of the second outlet 162 on the preset plane are staggered with each other, so that when the gas phase generated by the liquid phase in the gas phase channel 160 is heated and overflows from the second outlet 162 into the chamber 112, it will not interfere with or collide with the condensed liquid phase flowing into the chamber 112 from the first outlet 142.

[0045] In this embodiment, the projection of the liquid phase channel 140 on the preset plane and the projection of the gas phase channel 160 on the preset plane intersect each other, and the intersection means that the projection of the liquid phase channel 140 on the preset plane and the projection of the gas phase channel 160 on the preset plane intersect at the non-ends of the projection. The liquid phase channel 140 extends along the first preset direction (ab direction in the figure), and the gas phase channel 160 extends along the second preset direction (cd direction in the figure), that is, the extension paths of the liquid phase channel 140 and the gas phase channel 160 are straight lines. There is an angle between the first preset direction (ab direction in the figure) and the second preset direction (cd direction in the figure), and the direction in which the liquid phase in the liquid phase channel 140 flows out is different from the direction in which the gas in the gas phase channel 160 overflows. Therefore, when the gas phase generated by the liquid phase in the gas phase channel 160 overflows from the second outlet 162 into the chamber 112 after being heated, it will not interfere with or collide with the condensed liquid phase flowing into the chamber 112 from the first outlet 142, effectively reducing the flow resistance between the two phases, increasing the flow speed, and thus improving the heat exchange efficiency. In addition, in other embodiments, the liquid phase channel 140 and the gas phase channel 160 may extend in a curved manner instead of a straight line, that is, the fluid flow path is curved, and it is only necessary to make the projection of the liquid phase channel 140 on the preset plane and the projection of the gas phase channel 160 on the preset plane intersect with each other or to ensure that the projections of the first outlet 142 and the second outlet 162 on the preset plane are staggered with each other.

[0046] It can be understood that the first outlet 142 and the second outlet 162 can be respectively arranged on different parallel surfaces, or they can be respectively arranged on different non-parallel surfaces. It is only necessary to arrange the positions of the first outlet 142 and the second outlet 162 so that when the gas phase generated by the heated liquid phase in the gas phase channel 160 overflows from the second outlet 162 into the chamber 112, it will not interfere with or collide with the condensed liquid phase flowing into the chamber 112 from the first outlet 142.

[0047] It can be understood that the angle between the first preset direction (ab direction shown in the figure) and the second preset direction (cd direction shown in the figure) can be a right angle, that is, the first preset direction (ab direction shown in the figure) is perpendicular to the second preset direction (cd direction shown in the figure), or it can be a non-right angle, that is, the first preset direction (ab direction shown in the figure) is not perpendicular to the second preset direction (cd direction shown in the figure).

[0048] Please refer to Figure 1 and Figure 2, when the first preset direction (ab direction in the figure) is perpendicular to the second preset direction (cd direction in the figure), the projections of the liquid phase channel 140 and the gas phase channel 160 on the preset plane are orthogonal to each other. In the present embodiment, the liquid phase channel 140 includes at least two first shunt pipes 144 arranged in parallel, and each first shunt pipe 144 is connected to the liquid phase pipeline 120. The first shunt pipes 144 extend along the first preset direction (ab direction in the figure), and each first shunt pipe 144 has a first outlet 142. In the present embodiment, in order to accelerate the flow of the liquid phase, both ends of each first shunt pipe 144 have a first outlet 142, that is, both ends of the first shunt pipe 144 flow out the liquid phase at the same time, that is, the liquid phase channel 140 has a two-way liquid discharge in the chamber 112. The gas phase channel 160 includes at least two second shunt pipes 164 arranged in parallel, each of which is connected to the gas phase pipeline 130, and the second shunt pipes 164 extend along a second preset direction (the cd direction in the figure), and each of which has a second outlet 162. In this embodiment, in order to accelerate the flow of the liquid phase, both ends of each second shunt pipe 164 have a second outlet 162, that is, both ends of the second shunt pipe 164 overflow the gas phase at the same time, that is, the gas phase channel 160 has a two-way gas outlet in the chamber 112. Correspondingly, the number of gas phase pipelines 130 is two and the two gas phase pipelines 130 are arranged opposite to each other along a second preset direction (the cd direction shown in the figure), one gas phase pipeline 130 corresponds to the second outlet 162 at one end of the second diversion pipe 164, and the other gas phase pipeline 130 corresponds to the second outlet 162 at the other end of the second diversion pipe 164, so that the gas phase pipeline 130 is close to the second outlet 162, which facilitates the rising of the gas from the gas phase pipeline 130. In addition, in order to reduce the occupied space and ensure the rationality and regularity of the structure, the liquid phase channel 140 and the gas phase channel 160 are both flat rectangular pipe structures. The liquid phase channel 140 is stacked on the gas phase channel 160, and the top wall of the liquid phase channel 140 contacts the top inner surface of the chamber 112. The bottom wall of the liquid phase channel 140 is in contact with the top wall of the gas phase channel 160, and the bottom wall of the gas phase channel 160 contacts the bottom inner surface of the chamber 112, so that the entire chamber 112 is divided into two layers of space, so that the condensed reflux liquid phase can easily fill the entire chamber 112, and it is convenient for the liquid phase to enter the gas phase channel 160 from the second outlet 162.

[0049] In other embodiments, the liquid phase channel 140 and the gas phase channel 160 can also be respectively set as only one pipeline without diversion, so as to reduce the resistance of the flow channel structure to the fluid to a certain extent, and can be set specifically according to actual needs. In other embodiments, the first diversion pipe 144 can also be set to have a first outlet 142 at only one end, that is, the liquid phase channel 140 has a one-way liquid outlet, and the second diversion pipe 164 can also be set to have a second outlet 162 at only one end, that is, the gas phase channel 160 has a one-way gas outlet, and it is only necessary to meet the projection of the first outlet 142 on the preset plane and the projection of the second outlet 162 on the preset plane are staggered to reduce the mutual influence between gas phase overflow and liquid phase flow.

[0050] In the present embodiment, the liquid phase channel 140 and the gas phase channel 160 are both physical pipeline structures. It is understood that in other embodiments, a partition may also be provided in the chamber 112 (i.e., the liquid phase channel 140 and the gas phase channel 160 have a common wall), and the partition divides the chamber 112 into an upper region and a lower region. There is a gap between the surrounding of the partition and the side wall of the chamber 112 to connect the upper region and the lower region. The top wall, side wall and partition of the chamber 112 together constitute the liquid phase channel 140, so that the liquid phase flows in the upper region. The bottom wall, side wall and partition of the chamber 112 together constitute the gas phase channel 160, so that the gas phase flows in the lower region. The upper surface of the partition is connected to a fin extending toward the top wall of the chamber 112, and the lower surface of the partition is connected to a fin extending toward the bottom wall of the chamber 112, and the fin is used to guide and divert the fluid in the liquid phase channel 140 and the gas phase channel 160. Furthermore, the projections of the fins in the upper area and the fins in the lower area on the preset plane intersect with each other, so that the liquid phase flow direction in the upper area and the gas phase flow direction in the lower area are staggered with each other, and the gas phase generated after the liquid phase in the gas phase channel 160 is heated overflows from the second outlet 162 into the chamber 112 without interfering with or colliding with the condensed liquid phase flowing into the chamber 112 from the first outlet 142.

[0051] Please refer to Figure 3 and Figure 4 , when the first preset direction (ab direction in the figure) is not perpendicular to the second preset direction (cd direction in the figure), the projections of the liquid phase channel 140 and the gas phase channel 160 on the preset plane intersect with each other. Similar to the above-mentioned vertical situation, the liquid phase channel 140 can be configured to include at least two first shunt tubes 144 arranged in parallel, or it can be configured as a pipeline without shunt. The liquid phase channel 140 can have a two-way liquid outlet or a one-way liquid outlet in the chamber 112. The gas phase channel 160 can be configured to include at least two second shunt tubes 164 arranged in parallel, or it can be configured as a pipeline without shunt. The gas phase channel 160 can have a two-way gas outlet or a one-way gas outlet in the chamber 112.

[0052] The working principle and working process of the gravity heat pipe radiator 100 are as follows:

[0053] First, the liquid phase pipeline 120 is vertically arranged above the box body 110 and connected to the liquid phase channel 140 in the chamber 112. The condensed liquid phase flows from the liquid phase pipeline 120 into the chamber 112 through the first outlet 142 under the action of gravity, and the liquid phase fills the entire chamber 112.

[0054] Then, a gas phase channel 160 is provided in the chamber 112, and the gas phase channel 160 is located below the liquid phase channel 140 and closer to the heat source. The gas phase channel 160 has a second outlet 162 to communicate with the chamber 112, and the gas phase channel 160 is also filled with liquid phase. The liquid phase in the gas phase channel 160 is vaporized after being heated, and the gas phase overflows through the second outlet 162 in the form of bubbles and enters the chamber 112. Since the projections of the second outlet 162 and the first outlet 142 on the preset plane are staggered, and the preset plane is perpendicular to the gravity direction f, the gas phase overflowing the gas phase channel 160 through the second outlet 162 and then entering the chamber 112 can avoid crosstalk or collision with the condensed liquid phase flowing into the chamber 112 through the first outlet 142, effectively reducing the flow resistance of the entire circulation loop and improving the heat exchange efficiency. Since the gas phase pipeline 130 is arranged in the box 110 and connected to the chamber 112, and its position is close to the second outlet 162, the gas phase quickly overflows the chamber 112 and enters the gas phase pipeline 130, and then continues to rise along the e direction until it enters the cooling unit to release heat and condenses into a liquid phase after heat release.

[0055] Finally, the cooling unit is connected to the liquid phase pipeline 120, and the condensed liquid generated by the cooling continues to flow back to the chamber 112 along the direction f through the liquid phase pipeline 120 under the action of gravity. This reciprocating cycle completes the heat exchange and realizes the heat dissipation of the heat source.

[0056] This embodiment also provides an electronic device, which is a heat source or includes a heat source. The electronic device includes a gravity heat pipe radiator 100. The gravity heat pipe radiator 100 is connected to the heat source and the gas phase channel 160 is close to the heat source. The gravity heat pipe radiator 100 is used to dissipate heat from the heat source.

[0057] The gravity heat pipe radiator 100 controls the flow direction of the gas phase and the liquid phase in the chamber 112 by setting a liquid phase channel 140 and a gas phase channel 160 in the chamber 112. The condensed liquid phase flows into the chamber 112 through the first outlet 142 and fills the entire chamber 112. After the liquid phase enters the gas phase channel 160, it is heated and vaporized in the gas phase channel 160 and overflows from the gas phase channel 160 through the second outlet 162 in the form of bubbles. At the same time, the projection of the first outlet 142 of the liquid phase channel 140 on the preset plane and the projection of the second outlet 162 of the gas phase channel 160 on the preset plane are staggered, or the projection of the liquid phase channel 140 on the preset plane and the projection of the gas phase channel 160 on the preset plane are crossed with each other, thereby avoiding the liquid phase flowing into the chamber 112 and the gas phase overflowing the gas phase channel 160 from crosstalking with each other, reducing the flow resistance between the two phases, and improving the heat exchange efficiency of the entire gravity heat pipe radiator 100, so that the electronic device equipped with the gravity heat pipe radiator 100 has a good heat dissipation effect.

[0058] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A gravity heat pipe radiator, characterized in that: include: A box body for connecting to a heat source, wherein a chamber is arranged in the box body; A liquid phase pipeline and a gas phase pipeline, wherein the liquid phase pipeline and the gas phase pipeline are respectively arranged above the box body, one end of the gas phase pipeline is connected to the chamber, and the other end is used to connect to the liquid phase pipeline; A liquid phase channel is disposed in the chamber, the liquid phase channel is communicated with the liquid phase pipeline, and the liquid phase channel has a first outlet to communicate with the chamber, so that the condensed liquid phase can be drained into the chamber, and the liquid phase fills the chamber; A gas phase channel is provided in the chamber, the gas phase channel is located on a side of the chamber close to the heat source, and the gas phase channel has a second outlet to communicate with the chamber, so that the liquid phase in the gas phase channel can be heated and vaporized and then overflow through the gas phase channel; The projection of the first outlet on a preset plane and the projection of the second outlet on the preset plane are staggered with each other, and the preset plane is perpendicular to the direction of gravity; The number of the liquid phase pipelines is at least two.

2. The gravity heat pipe radiator according to claim 1, characterized in that: The bottom surface of the box body is used to be connected to the heat source, the gas phase channel is arranged at the bottom of the chamber, and the liquid phase channel is arranged above the gas phase channel.

3. The gravity heat pipe radiator according to claim 1, characterized in that: The gas phase pipeline is arranged at a position of the box body close to the second outlet.

4. A gravity heat pipe radiator, characterized in that: include: A box body for connecting to a heat source, wherein a chamber is arranged in the box body; A liquid phase pipeline and a gas phase pipeline, wherein the liquid phase pipeline and the gas phase pipeline are respectively arranged above the box body, one end of the gas phase pipeline is connected to the chamber, and the other end is used to connect to the liquid phase pipeline; A liquid phase channel is disposed in the chamber, the liquid phase channel is in communication with the liquid phase pipeline, and the liquid phase channel is in communication with the chamber, so that the condensed liquid phase can be drained into the chamber, and the liquid phase fills the chamber; A gas phase channel is provided in the chamber, the gas phase channel is located on a side of the chamber close to the heat source, and the gas phase channel is connected to the chamber, so that the liquid phase in the gas phase channel can be heated and gasified and then overflow through the gas phase channel; The projection of the liquid phase channel on a preset plane and the projection of the gas phase channel on the preset plane intersect each other, and the preset plane is perpendicular to the direction of gravity; The number of the liquid phase pipelines is at least two.

5. The gravity heat pipe radiator according to claim 4, characterized in that: The liquid phase channel extends along a first preset direction, and the gas phase channel extends along a second preset direction, and an angle is formed between the first preset direction and the second preset direction.

6. The gravity heat pipe radiator according to claim 5, characterized in that: The first preset direction is perpendicular to the second preset direction.

7. The gravity heat pipe radiator according to claim 5, characterized in that: The liquid phase channel includes at least two first shunt tubes arranged in parallel, each of which is connected to the liquid phase pipeline, extends along the first preset direction, and has a first outlet to communicate with the chamber.

8. The gravity heat pipe radiator according to claim 5, characterized in that: The gas phase channel includes at least two second shunt tubes arranged in parallel, each of the second shunt tubes is connected to the gas phase pipeline, the second shunt tubes extend along the second preset direction, and each of the second shunt tubes has a second outlet to communicate with the chamber.

9. The gravity heat pipe radiator according to claim 8, characterized in that: Each of the second branch pipes has the second outlet at both ends, the number of the gas phase pipelines is two and the two gas phase pipelines are arranged opposite to each other along the second preset direction, one gas phase pipeline corresponds to the second outlet at one end of the second branch pipe, and the other gas phase pipeline corresponds to the second outlet at the other end of the second branch pipe.

10. An electronic device, characterized in that: A gravity heat pipe radiator comprising any one of claims 1-9.

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