CN109640577B - Heat exchanger and apparatus provided with electronic device - Google Patents
Heat exchanger and apparatus provided with electronic device Download PDFInfo
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- CN109640577B CN109640577B CN201710927995.XA CN201710927995A CN109640577B CN 109640577 B CN109640577 B CN 109640577B CN 201710927995 A CN201710927995 A CN 201710927995A CN 109640577 B CN109640577 B CN 109640577B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a heat exchanger and equipment with the same. The heat exchanger comprises a first liquid collecting pipe, a second liquid collecting pipe, a liquid returning pipe and at least one heat exchange pipe, the first liquid collecting pipe and the second liquid collecting pipe are arranged at intervals, the liquid returning pipe is arranged between the first liquid collecting pipe and the second liquid collecting pipe and connected with the first liquid collecting pipe and the second liquid collecting pipe, and each heat exchange pipe comprises a first heat exchange pipe section and a second heat exchange pipe section. According to the heat exchanger disclosed by the invention, the refrigerant can circulate in the heat exchanger, so that the heat emitted by the electronic devices in the equipment can be absorbed in time and discharged outwards, and the heat radiation speed of the electronic devices in the equipment through the heat exchanger is improved.
Description
Technical Field
The invention relates to the field of heat exchange, in particular to a heat exchanger and equipment provided with an electronic device.
Background
The electronic devices are usually integrated in equipment such as machine tools and machine cabinets, along with the higher integration level and the higher power of the electronic devices, the larger the heat dissipation capacity of the electronic devices in the working process is, and the problem of poor heat exchange effect of heat transfer assemblies for dissipating heat of the electronic devices in the related art exists.
Disclosure of Invention
One object of the present invention is to propose a heat exchanger.
Another object of the invention is to propose an apparatus provided with an electronic device.
The heat exchanger comprises a first liquid collecting pipe, a second liquid collecting pipe, a liquid returning pipe and at least one heat exchange pipe, wherein the first liquid collecting pipe and the second liquid collecting pipe are arranged at intervals, the liquid returning pipe is arranged between the first liquid collecting pipe and the second liquid collecting pipe and is communicated with the first liquid collecting pipe and the second liquid collecting pipe, each heat exchange pipe comprises a first heat exchange pipe section and a second heat exchange pipe section, a first end of the first heat exchange pipe section is connected with the first liquid collecting pipe, a first end of the second heat exchange pipe section is connected with a second end of the first heat exchange pipe section, a second end of the second heat exchange pipe section is connected with the second liquid collecting pipe, and the extending direction of the first heat exchange pipe section and the extending direction of the second heat exchange pipe section form an included angle.
Specifically, an included angle α between the extending direction of the second heat exchange tube segment and the extending direction of the first heat exchange tube segment satisfies: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.
Optionally, a first end of the liquid return pipe is connected with an end of the first liquid collecting pipe, and a second end of the liquid return pipe is connected with an end of the second liquid collecting pipe.
Further, the liquid return pipe comprises a first pipe section, a second pipe section and a connecting pipe section, the first end of the first pipe section is connected with the first liquid collecting pipe, the axial direction of the first pipe section is coaxial with the first liquid collecting pipe, the first end of the second pipe section is connected with the second liquid collecting pipe, the second pipe section is parallel to the first pipe section, and the connecting pipe section is connected between the second end of the first pipe section and the second end of the second pipe section.
Optionally, one end of each first heat exchange tube segment, which is far away from the first header pipe, and one end of each corresponding second heat exchange tube segment, which is far away from the second header pipe, are connected through a bending segment, where the bending segment includes a first torsion segment, a second torsion segment, and a connection segment connected between the first torsion segment and the second torsion segment.
Optionally, each of the heat exchange pipe members is integrally formed by one heat exchange pipe.
In some examples of the invention, the first heat exchange tube section and the second heat exchange tube section are both flat tubes.
According to some embodiments of the invention, the peripheral contour of the longitudinal section of the first heat exchange tube section has a length and a width, the peripheral contour of the longitudinal section of the second heat exchange tube section has a length and a width, and the width direction of the first heat exchange tube section and the width direction of the second heat exchange tube section are both disposed perpendicular to the axial direction of the first header pipe.
According to some embodiments of the invention, at least one fin is arranged between two adjacent second heat exchange tube sections and/or at least one fin is arranged between two adjacent first heat exchange tube sections.
An apparatus provided with an electronic device according to an embodiment of the present invention includes: a housing, the electronics being disposed within the housing; the heat exchanger is the heat exchanger according to the above embodiment of the invention, at least a part of the first heat exchange tube section and the first header pipe are arranged in the casing and adjacent to the motor device, at least a part of the second heat exchange tube section and the second header pipe are located outside the casing, and the first header pipe is located below the second header pipe.
Preferably, the first heat exchange tube section and the first header pipe are disposed adjacent the electronics.
In some embodiments of the invention, the height position of the second header pipe is located between the height position of the first header pipe and the height position of the highest point of the heat exchanger.
In particular, the device is a cabinet, a server, a computer or a machine tool.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a heat exchanger according to an embodiment of the present invention at an angle;
FIG. 2 is a schematic structural view of a heat exchanger according to an embodiment of the present invention from another angle;
FIG. 3 is a schematic diagram of a front view of a heat exchanger according to another embodiment of the present invention;
FIG. 4 is an enlarged view at A in FIG. 3;
FIG. 5 is a schematic diagram of a back side construction of a heat exchanger according to another embodiment of the invention;
fig. 6 is a schematic view of an apparatus provided with an electronic device according to an embodiment of the present invention.
Reference numerals:
the heat exchanger comprises a heat exchanger 100, a first liquid collecting pipe 1, a second liquid collecting pipe 2, a liquid return pipe 3, a first heat exchange pipe section 4, a second heat exchange pipe section 5, fins 6, a filling valve 7, a bending section 8, a first torsion section 81, a connecting section 82, an installation bulge 821, an installation groove 822, a second torsion section 83, equipment 200 with electronic devices and a machine shell 9.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "axial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or apparatus must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected through one another or through an interaction between two devices. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is described below with reference to specific embodiments in conjunction with the accompanying drawings.
A heat exchanger 100 according to an embodiment of the present invention will first be described with reference to fig. 1-4.
As shown in fig. 1 to 4, a heat exchanger 100 according to an embodiment of the present invention may include a first header pipe 1, a second header pipe 2, a liquid return pipe 3, and at least one heat exchange pipe, wherein the first header pipe 1 may be spaced apart from the second header pipe 2, the liquid return pipe 3 may be connected between the first header pipe 1 and the second header pipe 2, one end of the liquid return pipe 3 is communicated with the first header pipe 1, and the other end of the liquid return pipe 3 is communicated with the second header pipe 2 to communicate the first header pipe 1 with the second header pipe 2.
As shown in fig. 1 and 2, the first header pipe 1 and the second header pipe 2 of the embodiment of the invention are arranged in parallel at an interval, when the number of the heat exchange pipe members is plural, the plural heat exchange pipe members may be arranged at an interval in the axial direction of the first header pipe 1 and the second header pipe 2, each of the heat exchange pipe members may include a first heat exchange pipe section 4 and a second heat exchange pipe section 5, a first end of the first heat exchange pipe section 4 may communicate with the first header pipe 1, a first end of the second heat exchange pipe section 5 may communicate with a second end of the first heat exchange pipe section 4, and a second end of the second heat exchange pipe section 5 may communicate with the second header pipe 2, and an extending direction of the second heat exchange pipe section 5 and an extending direction of the first heat exchange pipe section 4 have an included angle α therebetween.
It is understood that the first header pipe 1, the second header pipe 2, the liquid return pipe 3, the first heat exchange tube section 4 and the second heat exchange tube section 5 may communicate with each other to constitute an inner space of the heat exchanger 100, and the coolant may circulate among the first header pipe 1, the second header pipe 2, the liquid return pipe 3, the first heat exchange tube section 4 and the second heat exchange tube section 5.
As shown in fig. 1 and 2, the heat exchanger 100 may be a hollow cylinder, wherein the joints of the first header pipe 1, the second header pipe 2, the first heat exchange pipe section 4 and the second heat exchange pipe section 5 may respectively form three edges of the cylinder, the first heat exchange pipe section 4 may be located on one side of the cylinder, and the second heat exchange pipe section 5 may be located on the other side of the cylinder. The first liquid collecting pipe 1, the second liquid collecting pipe 2 and the liquid return pipe 3 can be positioned below the heat exchange pipe fitting.
As shown in fig. 1, the heat exchanger 100 may further include a charge valve 7, and the charge valve 7 may be in communication with the first header pipe 1 or the second header pipe 2, so that the charge valve 7 may first evacuate the inner space of the heat exchanger 100 and then charge the inner space of the heat exchanger 100 with refrigerant, so that the refrigerant circulates in the inner space of the heat exchanger 100.
When the heat exchanger is used specifically, the first heat exchange tube section 4 and the first header pipe 1 can be arranged close to a heat source, and the second heat exchange tube section 5 and the second header pipe 2 can be arranged far away from the heat source. The heat source may be an electronic device (which may be an integrated circuit board, a diode, a transistor, or the like) that generates heat when the device is operating, such as, but not limited to, a cabinet, such as a server cabinet, a network cabinet, or a console cabinet.
When the heat exchanger according to the embodiment of the invention is installed and used, the horizontal installation height of the first liquid collecting pipe 1 can be lower than that of the second liquid collecting pipe 2, so that on one hand, when heat emitted by an electronic device in the refrigerant absorption equipment is changed from a liquid state to a gas state, the gas refrigerant can rise from the first liquid collecting pipe 1 to the second liquid collecting pipe 2; on the other hand, when heat exchange is performed with the outside air, the refrigerant releases heat and changes from a gas state to a liquid state, and the liquid refrigerant can flow from the second header pipe 2 to the first header pipe 1 under the action of its own gravity.
When the device works, heat dissipated by electronic devices in the device is transferred to the refrigerant in the first heat exchange tube section 4 through the first heat exchange tube section 4, the refrigerant can be heated and gasified, the gasified refrigerant can expand and flow to the second heat exchange tube section 5, the refrigerant in the second heat exchange tube section 5 can exchange heat with the outside and be liquefied, the liquefied refrigerant can flow into the second liquid collecting tube 2 from the second heat exchange tube section 5 and flow into the first liquid collecting tube 1 through the liquid return tube 3, and therefore the flow of the refrigerant in the inner space of the heat exchanger 100 is completed.
According to the heat exchanger 100 provided by the embodiment of the invention, the first liquid collecting pipe 1, the second liquid collecting pipe 2, the liquid return pipe 3 and the heat exchange pipe are arranged, so that the refrigerant can dynamically circulate in the heat exchanger 100, and compared with a static heat dissipation method in the prior art that heat sink or heat sink combined heat pipe is adopted for heat dissipation of electronic devices generating heat for equipment, the refrigerant can timely absorb heat dissipated by the electronic devices in the equipment and is discharged outwards, and the heat dissipation speed of the equipment through the heat exchanger 100 is improved.
In addition, compared with the prior art in which a refrigerating unit is adopted to dissipate heat of electronic devices in the equipment, the heat exchanger 100 has a smaller volume, is more convenient to arrange, and has lower energy consumption of the heat exchanger 100.
In some alternative embodiments of the present invention, each heat exchange tube member may be integrally formed, for example, each heat exchange tube member may be formed by bending a heat exchange tube to define a first heat exchange tube section 4 and a second heat exchange tube section 5, and an included angle α between an extending direction of the first heat exchange tube section 4 and an extending direction of the second heat exchange tube section 5 may be an acute angle, for example, the included angle α satisfies 10 ° < α < 90 °. Therefore, the refrigerant can not leak at the joint of the first heat exchange pipe section 4 and the second heat exchange pipe section 5, and the internal sealing performance of the heat exchange pipe fitting is ensured.
In some alternative embodiments of the present invention, as shown in fig. 1 and 2, the first heat exchange tube section 4 and the second heat exchange tube section 5 may be flat tubes, and the cross-section of the flow passage of the flat tubes (i.e., the cross-section of the flat tubes) may be in the shape of an oval, a quadrilateral, a triangle, a circle, etc., or in the general shape of a quadrilateral, a triangle or a circle with serrated edges. Therefore, the first heat exchange tube section 4 and the second heat exchange tube section 5 can have larger heat dissipation areas, and the heat exchange speed between the heat exchanger 100 and the electronic devices in the equipment and between the heat exchanger 100 and the outside is further improved.
Specifically, as shown in fig. 1 and 2, the outer circumferential profile of the longitudinal section of the first heat exchange tube section 4 has a length and a width, and the width direction of the first heat exchange tube section 4 may be arranged perpendicular to the axial direction of the first header pipe 1, that is, the width direction of the first heat exchange tube section 4 of the flat pipe may be arranged along the circumferential direction of the first header pipe 1.
Therefore, the occupied length of each first heat exchange pipe section 4 in the axial direction of the first header pipe 1 is less, and more first heat exchange pipe sections 4 can be arranged in the axial direction of the first header pipe 1, so that heat exchange between the heat exchanger 100 and electronic devices in equipment is facilitated. Meanwhile, when in use, an electronic device needing heat dissipation can be inserted into a gap between two adjacent first heat exchange tube sections 4, so that the contact area between the device and the first heat exchange tube sections 4 is maximized.
It should be noted that the arrangement manner of the first heat exchange tube section may be different from this, and in other specific embodiments, the width direction of the first heat exchange tube section 4 may be arranged along the axial direction of the first header pipe 1, so that the electronic device to be cooled may be directly attached to the flat surface of the first heat exchange tube section 4, thereby improving the heat exchange efficiency between the electronic device to be cooled and the first heat exchange tube section 4.
Specifically, as shown in fig. 1 and 2, the outer circumferential profile of the longitudinal section of the second heat exchange tube section 5 has a length and a width, and the width direction of the second heat exchange tube section 5 may be arranged perpendicular to the axial direction of the second header pipe 2, that is, the width direction of the second heat exchange tube section 5 of the flat pipe may be arranged along the circumferential direction of the second header pipe 2.
Therefore, the occupied length of each second heat exchange pipe section 5 in the axial direction of the second header pipe 2 is less, and more second heat exchange pipe sections 5 can be arranged in the axial direction of the second header pipe 2, so that heat exchange between the heat exchanger 100 and electronic devices in equipment is facilitated. Meanwhile, when in use, an electronic device needing heat dissipation can be inserted into a gap between two adjacent second heat exchange tube sections 5, so that the contact area between the device and the second heat exchange tube sections 5 is the largest.
It should be noted that the arrangement manner of the second heat exchange tube section 5 may be different from this, and in other specific embodiments, the width direction of the second heat exchange tube section 5 may be arranged along the axial direction of the second header pipe 2, so that the electronic device to be cooled may be directly attached to the flat surface of the second heat exchange tube section 5, thereby improving the heat exchange efficiency between the electronic device to be cooled and the second heat exchange tube section 5.
In some specific embodiments, as shown in fig. 1 and 2, at least one fin 6 may be disposed between two adjacent second heat exchange tube segments 5. Therefore, the fins 6 can increase the heat exchange area between the second heat exchange pipe section 5 and the outside, so that the heat exchange speed between the heat exchanger 100 and the outside can be increased, and the heat exchanger 100 can conveniently dissipate heat to the outside.
In some specific embodiments, at least one fin is disposed between two adjacent first heat exchange tube segments 4. Therefore, the heat exchange area between the first heat exchange pipe section 4 and the air can be increased by the fins, the heat exchange speed between the heat exchanger 100 and the electronic devices in the equipment can be increased, and the heat of the electronic devices in the equipment can be conveniently dissipated to the heat exchanger 100.
In particular, the lengths of the first and second heat exchange tube sections 4, 5 may not be equal. The heat exchanger 100 can thus adjust the length of the first heat exchange tube section 4 and the second heat exchange tube section 5 according to the shape of the installation space, which facilitates the installation of the heat exchanger 100.
Alternatively, as shown in fig. 1 and 2, a first end of the liquid return pipe 3 may be connected to an end of the first header pipe 1, and a second end of the liquid return pipe 3 may be connected to an end of the second header pipe 2. From this, the refrigerant can flow between first collecting pipe 1 and second collecting pipe 2 through liquid return pipe 3 to the refrigerant in the first collecting pipe 1 can flow to the second collecting pipe 2 through liquid return pipe 3 behind the one end of first collecting pipe 1, and the flow process of refrigerant is more smooth and easy.
Specifically, as shown in fig. 1 and 2, the liquid return pipe 3 may include a first pipe section having a first end connected to the first header pipe 1 and an axial direction of the first pipe section coaxially disposed with the first header pipe 1, a second pipe section having a first end connected to the second header pipe 2 and a second pipe section disposed in parallel with the first pipe section, and a connection pipe section connected between the second end of the first pipe section and the second end of the second pipe section, thereby defining a U-shaped liquid return pipe 3 for facilitating the flow of the refrigerant between the first header pipe 1 and the second header pipe 2 through the liquid return pipe 3.
Alternatively, the heat exchanger 100 may be filled with a refrigerant, which may preferably be R134a, R290, R600a, or R410 a. The refrigerant can thus have a relatively high refrigeration capacity, further increasing the rate of heat dissipation from the electronics in the device through heat exchanger 100.
In some alternative embodiments, as shown in fig. 4, one end of each first heat exchange tube section 4 facing away from the first header pipe 1 (i.e., the upper end of the first heat exchange tube section 4) may be connected to one end of the corresponding second heat exchange tube section 5 facing away from the second header pipe 2 (i.e., the upper end of the second heat exchange tube section 5) through a bent section 8, and the inner cavity of the first heat exchange tube section 4, the inner cavity of the second heat exchange tube section 5 and the inner cavity of the bent section 8 are communicated. The bending section 8 may include a first torsion section 81, a second torsion section 83, and a connection section 82 connected between the first torsion section 81 and the second torsion section 83, the first torsion section 81 may be bent to form an arc shape and connected to the first heat exchange pipe section 4, and the second torsion section 83 may be bent to form an arc shape and connected to the second heat exchange pipe section 5.
As shown in fig. 3 and 5, both ends of the connection segments 82 in the axial direction of the first header pipe 1 may be formed with mounting protrusions 821 and mounting grooves 822, respectively, wherein the mounting protrusion 821 of one connection segment 82 may be fitted into the mounting groove 822 of the other connection segment 82 adjacent thereto such that the two connection segments 82 adjacent thereto are partially overlapped.
Therefore, the adjacent two connecting sections 82 are partially overlapped, so that the overall length of the heat exchanger 100 can be reduced, the occupied space of the heat exchanger 100 is reduced, and the arrangement of the heat exchanger 100 is facilitated.
As shown in fig. 3 to 5, each of the connection sections 82 may be configured as a flat arc, so that the overall height of the heat exchanger 100 may be reduced, the occupied space of the heat exchanger 100 may be reduced, and meanwhile, the first torsion section 81 and the second torsion section 83 do not need to be provided with a longer bending radius, so that a longer length may be reserved for the first heat exchange tube section 4 and the second heat exchange tube section 5, thereby increasing the heat exchange area of the first heat exchange tube section 4 and the second heat exchange tube section 5, and further improving the heat exchange performance of the heat exchanger 100.
In some more specific embodiments, as shown in fig. 3 to 5, both the upper surface and the lower surface of the connecting segments 82 may be flat, in other words, in two adjacent connecting segments 82, the upper surface of the mounting protrusion 821 of one connecting segment 82 may be disposed closely to the lower surface of the mounting groove 822 of the other connecting segment 82, so that the arrangement of the plurality of connecting segments 82 is more compact, thereby further reducing the occupied space of the heat exchanger 100.
Optionally 30 ° < α < 60 °, more preferably α may be 30 °, 35 °, 40 °, 45 °, 50 °, 55 ° or 60 °. Thereby, fluid can flow more smoothly between the first heat exchange tube section 4 and the second heat exchange tube section 5.
As shown in fig. 6, the apparatus 200 provided with an electronic device according to an embodiment of the present invention includes: a casing 9 and a heat exchanger 100, wherein the casing 9 is internally provided with electronic devices, the heat exchanger 100 is the heat exchanger 100 according to the above embodiment of the invention, and at least a part of the first heat exchange pipe section 4 and the first header 1 are arranged in the casing 9. At least a part of the second heat exchange tube section 5 and the second header pipe 2 are located outside the cabinet 9, and the first header pipe 1 is located below the second header pipe 2. Specifically, the apparatus provided with the electronic device may be a cabinet, a server, a computer, a machine tool, or the like. It will be appreciated that either a portion of the first heat exchange tube section 4 may be disposed within the enclosure 9 or the entire first heat exchange tube section 4 may be disposed within the enclosure 9. A part of the second heat exchange tube section 5 may be arranged outside the casing 9, or the whole second heat exchange tube 5 may be arranged outside the casing 9.
Preferably, the first heat exchange tube section 4 and the first header 1 are disposed adjacent to the electronics so that heat dissipation may be further facilitated.
When the equipment 200 provided with the electronic device works, the electronic device generates heat, the first heat exchange pipe section 4 and the first liquid collecting pipe 1 are arranged inside the machine shell 9 to exchange heat with hot air inside the machine shell, or the surface of the first heat exchange pipe section 4 is directly contacted with the electronic device to exchange heat. The second heat exchange tube section 5 and the second liquid collecting tube 2 are located outside the casing 9 to release heat, and the refrigerant dynamically circulates in the heat exchanger 100 to dissipate heat of the electronic devices.
According to the equipment 200 provided by the embodiment of the invention, by arranging the heat exchanger 100, the refrigerant can dynamically circulate in the heat exchanger 100, compared with a static heat dissipation mode in which heat sinks or heat sinks and heat pipes are used in combination for electronic devices in the traditional technology, the refrigerant can absorb heat dissipated by the electronic devices in the equipment in time and is discharged outwards, and the adopted heat exchange pipes can be flat pipes with micro-channels, so that the heat exchange area of the flat pipes is large, and the heat dissipation speed and the heat dissipation effect of the electronic devices in the equipment for dissipating heat through the heat exchanger 100 are improved.
Preferably, as shown in fig. 6, the height position of the second header pipe 2 is located between the height position of the first header pipe 1 and the height position of the highest point of the heat exchanger 100, so that not only can the refrigerant return from the second header pipe 2 to the first header pipe 1, but also the condensed liquid in the outdoor second heat exchange tube section 5 does not flow back into the first heat exchange tube section 4.
The heat exchanger of two embodiments of the present invention will be described with reference to fig. 1 to 5.
Example 1: as shown in fig. 1 and 2, a heat exchanger 100 according to an embodiment of the present invention may include a first header pipe 1, a second header pipe 2, a liquid return pipe 3, a fin 6, a fill valve 7, and at least two heat exchange pipes, wherein the first header pipe 1 may be arranged in parallel with the second header pipe 2 at a distance, the liquid return pipe 3 may be connected to the first header pipe 1 and the second header pipe 2, respectively, and an inner cavity of the liquid return pipe 3 is communicated with inner cavities of the first header pipe 1 and the second header pipe 2.
As shown in fig. 1 and 2, a plurality of heat exchange pipe members may be arranged at intervals in the axial direction of the first header pipe 1 (also at intervals in the axial direction of the second header pipe 2), each of which may include a first heat exchange pipe section 4 and a second heat exchange pipe section 5 connected to each other, a first end of the first heat exchange pipe section 4 may be connected to the first header pipe 1, a first end of the second heat exchange pipe section 5 may be connected to a second end of the first heat exchange pipe section 4, and a second end of the second heat exchange pipe section 5 may be connected to the second header pipe 2, an inner cavity of the first header pipe 1, an inner cavity of the first heat exchange pipe section 4, an inner cavity of the second heat exchange pipe section 5, and an inner cavity of the second header pipe 2 may be communicated, an extending direction of the second heat exchange pipe section 5 has an angle α with an extending direction of the first heat exchange pipe section 4, which satisfies 10 ° α < 90 °, preferably 30 ° α < 60 °, more preferably, the included angle may be 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, 60 °, and the like.
It is understood that the first header pipe 1, the second header pipe 2, the liquid return pipe 3, the first heat exchange tube section 4 and the second heat exchange tube section 5 may communicate with each other to constitute an inner space of the heat exchanger 100, and the coolant may circulate among the first header pipe 1, the second header pipe 2, the liquid return pipe 3, the first heat exchange tube section 4 and the second heat exchange tube section 5.
As shown in fig. 1 and 2, the heat exchanger 100 may be a hollow triangular prism, wherein the joints of the first header pipe 1, the second header pipe 2, the first heat exchange pipe section 4 and the second heat exchange pipe section 5 may respectively form three edges of the triangular prism, the first heat exchange pipe section 4 may be located on one side of the triangular prism, and the second heat exchange pipe section 5 may be located on the other side of the triangular prism. The first liquid collecting pipe 1, the second liquid collecting pipe 2 and the liquid return pipe 3 can be positioned below the heat exchange pipe fitting.
As shown in fig. 1, the charge valve 7 may communicate with the first header 1 or the second header 2, so that the charge valve 7 may first evacuate the inner space of the heat exchanger 100 and then charge the inner space of the heat exchanger 100 with the refrigerant, so that the refrigerant circulates in the inner space of the heat exchanger 100.
The first heat exchange tube section 4 and the first header pipe 1 may be disposed adjacent to a heat source, and the second heat exchange tube section 5 and the second header pipe 2 may be disposed away from the heat source. The heat source may be an electronic device in which heat is generated when the apparatus is in operation.
When the device works, heat dissipated by electronic devices in the device is transferred to the refrigerant in the first heat exchange tube section 4 through the first heat exchange tube section 4, the refrigerant can be heated and gasified, the gasified refrigerant can expand and flow to the second heat exchange tube section 5, the refrigerant in the second heat exchange tube section 5 can exchange heat with the outside and be liquefied, the liquefied refrigerant can flow into the second liquid collecting tube 2 from the second heat exchange tube section 5 and flow into the first liquid collecting tube 1 through the liquid return tube 3, and therefore the flow of the refrigerant in the inner space of the heat exchanger 100 is completed.
The level of the first header pipe 1 may be lower than that of the second header pipe 2, whereby the refrigerant in a liquid state may more conveniently flow from the second header pipe 2 into the first header pipe 1 through the liquid return pipe 3 under its own weight.
According to the heat exchanger 100 provided by the embodiment of the invention, by arranging the first liquid collecting pipe 1, the second liquid collecting pipe 2, the liquid return pipe 3 and the plurality of heat exchange pipe fittings, the refrigerant can circulate in the heat exchanger 100, and can absorb heat emitted by electronic devices in equipment in time and be discharged outwards, so that the heat radiation speed of the equipment through the heat exchanger 100 is improved.
Each heat exchange tube member may be formed by bending a heat exchange tube to define a first heat exchange tube section 4 and a second heat exchange tube section 5. This ensures that the first heat exchange tube section 4 and the second heat exchange tube section 5 are connected seamlessly, ensuring that refrigerant circulates between the first heat exchange tube section 4 and the second heat exchange tube section 5.
As shown in fig. 1 and 2, the first heat exchange tube section 4 and the second heat exchange tube section 5 may both be flat tubes, the peripheral profile of the longitudinal section of the first heat exchange tube section 4 having a length and a width, and the peripheral profile of the longitudinal section of the second heat exchange tube section 5 having a length and a width. Therefore, the first heat exchange tube section 4 and the second heat exchange tube section 5 can have a larger heat dissipation area, and further improve the heat exchange speed between the heat exchanger 100 and the electronic devices needing heat dissipation in the equipment and between the heat exchanger 100 and the outside.
The width direction of the first heat exchange tube section 4 can be perpendicular to the axial direction of the first liquid collecting tube 1, namely the width direction of the first heat exchange tube of the flat tube can be arranged along the circumferential direction of the first liquid collecting tube 1. Therefore, the axial occupied length of each first heat exchange pipe section 4 in the first header pipe 1 is less, and more first heat exchange pipe sections 4 can be arranged in the axial direction of the first header pipe 1, so that heat exchange can be conveniently carried out between the heat exchanger 100 and electronic devices needing heat dissipation in equipment.
As shown in fig. 1 and 2, a plurality of fins 6 may be disposed between two adjacent second heat exchange tube sections 5. Therefore, the fins 6 can increase the heat exchange area between the second heat exchange pipe section 5 and the outside, so that the heat exchange speed between the heat exchanger 100 and the outside can be increased, and the heat exchanger 100 can conveniently dissipate heat to the outside.
Specifically, as shown in fig. 1 and 2, the liquid return pipe 3 may include a first pipe section, a second pipe section, and a connection pipe section, a first end of the first pipe section is connected to the first liquid collecting pipe 1 and an axial direction of the first pipe section is coaxially disposed with the first liquid collecting pipe 1, a first end of the second pipe section is connected to the second liquid collecting pipe 2 and the second pipe section is disposed in parallel with the first pipe section, and the connection pipe section is connected between a second end of the first pipe section and a second end of the second pipe section, so that the refrigerant may flow between the first liquid collecting pipe 1 and the second liquid collecting pipe 2 through the liquid return pipe 3.
The refrigerant of the heat exchanger 100 is R134a, R290, R600a, or R410 a. Therefore, the refrigerant can have stronger refrigerating performance, and the heat dissipation speed of electronic devices needing heat dissipation in the equipment through the heat exchanger 100 is further improved.
Example 2: as shown in fig. 3 to 5, the heat exchanger 100 according to the embodiment of the present invention may include a first header pipe 1, a second header pipe 2, a liquid return pipe 3, fins 6, a filling valve 7, and at least one heat exchange pipe, the first header pipe 1 may be spaced apart from and arranged in parallel with the second header pipe 2, one end of the liquid return pipe 3 is connected to the first header pipe 1, the other end of the liquid return pipe 3 is connected to the second header pipe 2, and an inner cavity of the liquid return pipe 3 is communicated with an inner cavity of the first header pipe 1 and an inner cavity of the second header pipe 2.
As shown in fig. 3 to 5, a plurality of heat exchange pipes may be arranged at intervals in the axial direction of the first header pipe 1, each of the heat exchange pipes may include a first heat exchange pipe section 4 and a second heat exchange pipe section 5 connected to each other, a first end of the first heat exchange pipe section 4 may be connected to the first header pipe 1, a first end of the second heat exchange pipe section 5 may be connected to a second end of the first heat exchange pipe section 4, and a second end of the second heat exchange pipe section 5 may be connected to the second header pipe 2, an extending direction of the second heat exchange pipe section 5 and an extending direction of the first heat exchange pipe section 4 have an included angle α, α satisfies 10 ° < α < 90 °.
In some alternative embodiments, as shown in fig. 4, the end of each first heat exchange tube section 4 facing away from the first header pipe 1 (i.e., the upper end of the first heat exchange tube section 4) may communicate with the corresponding end of the second heat exchange tube section 5 facing away from the second header pipe 2 (i.e., the upper end of the second heat exchange tube section 5) through a bent section 8. The bending section 8 may include a first twisting section 81, a second twisting section 83, and a connecting section 82 connected between the first twisting section 81 and the second twisting section 83, the first twisting section 81 may be bent into a curved shape and connected to the first heat exchange pipe section 4, and the second twisting section 83 may be bent into a curved shape and connected to the second heat exchange pipe section 5.
As shown in fig. 3 and 5, the width direction of the connecting sections 82 is the same as the axial direction of the first header pipe 1, and both ends of the connecting sections 82 in the width direction may form a mounting protrusion 821 and a mounting groove 822, respectively, wherein the mounting protrusion 821 of one connecting section 82 may be fitted into the mounting groove 822 of another adjacent connecting section 82, so that the two adjacent connecting sections 82 partially overlap.
Therefore, the middle parts of the two adjacent connecting sections 82 are partially overlapped, so that the overall length of the heat exchanger 100 can be reduced, the occupied space of the heat exchanger 100 is reduced, and the arrangement of the heat exchanger 100 is facilitated.
As shown in fig. 3 to 5, each of the connection sections 82 may be configured as a flat arc, so that the overall height of the heat exchanger 100 may be reduced, the occupied space of the heat exchanger 100 may be reduced, and meanwhile, the first torsion section 81 and the second torsion section 83 do not need to be provided with a longer bending radius, so that a longer length may be reserved for the first heat exchange tube section 4 and the second heat exchange tube section 5, thereby increasing the heat exchange area of the first heat exchange tube section 4 and the second heat exchange tube section 5, and further improving the heat exchange performance of the heat exchanger 100.
In some more specific embodiments, as shown in fig. 3 to 5, both the upper surface and the lower surface of the connecting segments 82 may be flat, in other words, in two adjacent connecting segments 82, the upper surface of the mounting protrusion 821 of one connecting segment 82 may be disposed closely to the lower surface of the mounting groove 822 of the other connecting segment 82, so that the arrangement of the plurality of connecting segments 82 is more compact, thereby further reducing the occupied space of the heat exchanger 100.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. A heat exchanger, comprising:
the liquid collecting device comprises a first liquid collecting pipe and a second liquid collecting pipe, wherein the first liquid collecting pipe and the second liquid collecting pipe are arranged at intervals;
the liquid return pipe is arranged between the first liquid collecting pipe and the second liquid collecting pipe and is communicated with the first liquid collecting pipe and the second liquid collecting pipe;
at least one heat exchange tube, each said heat exchange tube comprising:
a first heat exchange tube section, a first end of the first heat exchange tube section being connected to the first header tube, an
A second heat exchange tube section, a first end of the second heat exchange tube section being connected to a second end of the first heat exchange tube section and a second end of the second heat exchange tube section being connected to the second header pipe, an included angle being formed between an extending direction of the first heat exchange tube section and an extending direction of the second heat exchange tube section;
the liquid return pipe includes:
the first end of the first pipe section is connected with the first liquid collecting pipe, and the axial direction of the first pipe section is coaxial with the first liquid collecting pipe;
the first end of the second pipe section is connected with the second liquid collecting pipe, and the second pipe section is arranged in parallel with the first pipe section;
a connecting pipe section connected between the second end of the first pipe section and the second end of the second pipe section;
the liquid return pipe is positioned below the heat exchange pipe fitting.
2. A heat exchanger according to claim 1, wherein the angle α between the direction of extension of the second heat exchange tube section and the direction of extension of the first heat exchange tube section satisfies: alpha is more than or equal to 30 degrees and less than or equal to 60 degrees.
3. The heat exchanger of claim 1, wherein a first end of the liquid return pipe is connected to an end of the first header pipe and a second end of the liquid return pipe is connected to an end of the second header pipe.
4. The heat exchanger as recited in claim 1 wherein one end of each of the first heat exchange tube segments facing away from the first header tube is connected to a corresponding end of the second heat exchange tube segment facing away from the second header tube by a bend;
the bending section comprises a first torsion section, a second torsion section and a connecting section connected between the first torsion section and the second torsion section.
5. The heat exchanger of claim 1, wherein each of the heat exchange tube members is integrally formed with one of the heat exchange tubes.
6. The heat exchanger of claim 1, wherein the first and second heat exchange tube segments are flat tubes.
7. The heat exchanger as recited in claim 1 wherein the peripheral profile of the longitudinal section of the first heat exchange tube section has a length and a width, the peripheral profile of the longitudinal section of the second heat exchange tube section has a length and a width, and the width direction of the first heat exchange tube section and the width direction of the second heat exchange tube section are both disposed perpendicular to the axial direction of the first header pipe.
8. The heat exchanger as recited in claim 1 wherein at least one fin is disposed between adjacent ones of the second heat exchange tube segments and/or at least one fin is disposed between adjacent ones of the first heat exchange tube segments.
9. An apparatus provided with an electronic device, comprising:
a housing, the electronics being disposed within the housing;
a heat exchanger according to any one of claims 1-8, wherein at least a portion of the first heat exchange tube section and the first header are disposed within the enclosure, at least a portion of the second heat exchange tube section and the second header are located outside the enclosure, and the first header is located below the second header.
10. The electronics-provided apparatus of claim 9, wherein the first heat exchange tube segment and the first header tube are disposed adjacent the electronics.
11. The apparatus provided with electronics according to claim 9, wherein the height position of the second header pipe is located between the height position of the first header pipe and the height position of the highest point of the heat exchanger.
12. Device provided with electronics according to claim 9, characterised in that the device is a cabinet, a server, a computer or a machine tool.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140187.3A CN109640579A (en) | 2017-10-09 | 2017-10-09 | Heat exchanger and equipment equipped with electronic device |
| CN201710927995.XA CN109640577B (en) | 2017-10-09 | 2017-10-09 | Heat exchanger and apparatus provided with electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710927995.XA CN109640577B (en) | 2017-10-09 | 2017-10-09 | Heat exchanger and apparatus provided with electronic device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810140187.3A Division CN109640579A (en) | 2017-10-09 | 2017-10-09 | Heat exchanger and equipment equipped with electronic device |
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| Publication Number | Publication Date |
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| CN109640577A CN109640577A (en) | 2019-04-16 |
| CN109640577B true CN109640577B (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710927995.XA Active CN109640577B (en) | 2017-10-09 | 2017-10-09 | Heat exchanger and apparatus provided with electronic device |
| CN201810140187.3A Withdrawn CN109640579A (en) | 2017-10-09 | 2017-10-09 | Heat exchanger and equipment equipped with electronic device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810140187.3A Withdrawn CN109640579A (en) | 2017-10-09 | 2017-10-09 | Heat exchanger and equipment equipped with electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114302608B (en) * | 2021-03-31 | 2024-01-30 | 华为数字能源技术有限公司 | Heat exchanger, cabinet and communication base station |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846465B (en) * | 2010-04-13 | 2011-11-09 | 三花丹佛斯（杭州）微通道换热器有限公司 | Heat exchanger |
| CN104677170B (en) * | 2011-01-21 | 2017-12-05 | 大金工业株式会社 | Heat exchanger and air-conditioning device |
| DE102011086605A1 (en) * | 2011-11-17 | 2013-05-23 | Behr Gmbh & Co. Kg | Method for closing a collecting box |
| CN203120349U (en) * | 2012-12-20 | 2013-08-07 | 中国科学院电工研究所 | Evaporation-cooled device for cabinet body of power device |
| CN106288893A (en) * | 2015-06-03 | 2017-01-04 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger system |
| CN107144049A (en) * | 2017-06-30 | 2017-09-08 | 广东美芝制冷设备有限公司 | Heat exchanger |
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2017
- 2017-10-09 CN CN201710927995.XA patent/CN109640577B/en active Active
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| CN109640577A (en) | 2019-04-16 |
| CN109640579A (en) | 2019-04-16 |
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Effective date of registration: 20191029 Address after: 310018 289-1, No.12 Baiyang street, Hangzhou Economic and Technological Development Zone, Zhejiang Province Applicant after: Sanhua Micro Channel Heat Exchanger Inc. Address before: 310018 289-3 No. 12 Street, Hangzhou Economic and Technological Development Zone, Zhejiang Province Applicant before: HANGZHOU SANHUAJIA ELECTROTHERMAL MANAGEMENT SYSTEM CO., LTD. |
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