TWI403684B - Heat exchanger - Google Patents

Abstract

The present invention provides a heat exchanger, which includes: a main body including a first pipeline and a second pipeline. The inside of first pipeline is installed with at least a stationary wing. The stationary wing is connected to the inner pipe wall of first pipeline. The diameter of second pipeline is larger than that of the first pipeline, and the second pipeline is axially sleeved and soldered on the first pipeline. The inside of second pipeline is installed with at least a fin. The fin is connected to the external wall of first pipeline. Thus, through a novel design of stationary wing and movable fin in the above-mentioned pipelines, the invention provides a heat exchanger with features of flow guide, thermal conduction, and increased performance in heat transfer.

Description

Heat exchanger

This invention relates to a heat exchanger, and more particularly to a heat exchanger having a rectifying, thermally conductive effect, and improved heat transfer efficiency.

With the rapid development of technology, the processing speed of electronic wafers has doubled, and the heat of derivative energy has increased. However, high temperatures are the main cause of poor wafer execution efficiency and burnout. Therefore, how to effectively dissipate the thermal energy emitted by the electronic chip and protect the wafer is the subject of active research and development.

In the current state of the art, in order to achieve the best heat dissipation effect, most R&D designs are stacked with a plurality of fins to form a heat sink fin group (9), and a heat transfer tube (8) is combined with the heat sink fin group (9). The fan (10) airflow is forced to dissipate heat by the heat sink fin group to improve the heat dissipation efficiency (please refer to the fifth figure).

Patent Law No. 449514 of the Republic of China Patent No. 449514, "Method of Combination of Heat Pipe and Heat Sink". The focus of this case is to apply a layer of solder to the joint between the heat pipe and the heat sink; after joining the heat pipe and the heat sink, it is placed in a vacuum heating furnace to melt the solder during heating to produce capillary phenomenon. The joint between the conduit and the heat sink achieves a tight bond.

Patent of the Republic of China Patent No. I236337, "Method for Forming Heat Pipe and Heat Sink Forming". The appeal of this patent case is focused on: a. a portion of the heat pipe to which the heat pipe is to be bonded to the heat sink fin is plated with a metal heat conductive medium layer; b, the heat sink fin is bonded to the portion of the heat pipe plated with the heat conductive medium layer; The heat conductive medium layer is heated and melted between the heat pipe and the heat dissipation fins, and then cooled.

However, the U-shaped heat pipes used in the above patents are respectively sleeved in the perforations, but the two perforations are respectively extended in the opposite direction by a slit-shaped hole, so that the solder only flows to one end after the coating, so that the solder Uniform diffusion to the perforations and joints is not possible, resulting in incomplete soldering.

Therefore, in order to evenly spread the solder, it is necessary to repeat the steps of applying the solder twice, inverting the fins and the heat pipe, and entering the oven. This method of assembly is not only complicated, but also inconvenient to operate, and is not suitable for mass production.

Furthermore, it is necessary to provide a narrow hole in the heat sink fin, which reduces the heat dissipation area of the heat sink fin and reduces the overall heat dissipation performance.

Because the heat conducting tube has a circular structure, the heat conducting tube is disposed on the heat dissipating fin, and the deflection or shaking of the circular structure of the heat conducting tube cannot be positioned, and the heat conducting tube and the heat dissipating fin are seriously caused. The assembly and positioning between the sheets is not easy, which indirectly affects the bonding between the heat transfer tubes and the heat dissipation fins, and easily forms a gap of assembly, thereby causing a problem of poor heat transfer performance. In order to prevent assembly deflection or sway and increase heat transfer efficiency, it is necessary to solder the heat pipe and the heat sink fins. In addition, the heat sink fins are thin and difficult to solder. This adds a lot of processing costs.

Therefore, how to effectively improve the efficiency of heat transfer is also a concern for the industry. In view of this, the applicant has been adhering to the many years of experience in this business. After continuous research and experimentation, Yan Mengsheng designed this heat exchanger.

Therefore, in view of the current disadvantages of the prior art heat dissipation technology, the present invention provides a heat exchanger comprising: a body including a first conduit and a second conduit, the first conduit along the length of the tube Forming a hollow tube including an inlet and an outlet, and the first pipeline is provided with at least one stationary wing, the static wing connecting the inner wall of the first pipeline; the diameter of the second pipeline is greater than The first pipeline is sleeved and welded to the first pipeline in the axial direction, and is formed as a hollow conduit of two closed ends along the length direction of the pipe, and the second pipeline is respectively provided with an inlet and an outlet, and the first pipeline The second pipeline is provided with at least one fin, the fin is connected to the outer tube wall of the first pipeline; at least one moving wing is disposed in the first pipeline along the length of the pipe, and is provided with a shaft hole; The rotating shaft is disposed on the shaft hole; a fixing portion pivotally connected to the rotating shaft; and a power unit connected to the rotating shaft.

The thickness of the static vane toward the first conduit inlet is greater than the thickness of the stationary vane toward the first conduit outlet.

The above-mentioned stationary wing is provided with a shaft hole along the length of the pipe of the first pipe.

The above-mentioned static wing system is plural to form a static wing group, and each of the static wing groups The stationary wing is centered on the shaft hole and distributed in the radiation direction.

In the first pipeline described above, two or more sets of static wing groups are disposed along the longitudinal direction of the pipe, and each of the stationary wing groups is arranged at intervals.

The plurality of fins are formed into a plurality of fins, and the fins of the fin group are axially distributed along the outer wall of the first pipeline.

The fins described above are thermally conductive materials.

The above-mentioned moving wing is an axial flow fan blade.

The power unit described above is a motor.

The above-mentioned stationary blades are arranged at intervals from the moving wings.

The invention has the following advantages:

1. The invention utilizes the innovative design of the static wing with the moving wing in the pipeline, has the function of driving fluid rectification, heat conduction, and improving heat transfer efficiency.

2. The present invention utilizes the first conduit and the second conduit design of the cold and heat exchange fluid to reduce the fluid pressure resistance. Therefore, the present invention can increase the fluid pressure by providing only a small pump.

3. The present invention utilizes a hot fluid joint to connect the inlet and outlet of the second conduit, and then inputs a high pressure cold fluid in the first conduit and flows through a stationary wing with thermal conductivity to achieve optimum heat transfer efficiency.

4. According to the demand of the cold and heat exchange fluid, the present invention implements the interval arrangement of the stationary wing with the moving wing.

5. The invention is suitable for a wide range of application fields, and is suitable for mass production molding, large or small body shape, and low production cost.

(1) ‧‧‧ Ontology

(2) ‧‧‧First line

(21) ‧ ‧ inner wall

(22) ‧‧‧ outer wall

(23)‧‧‧ Entrance

(24)‧‧‧Export

(3) ‧‧‧Silence

(31)‧‧‧Axis hole

(32)‧‧‧ Entrance thickness

(33) ‧‧‧Export thickness

(4) ‧‧‧Second pipeline

(41)‧‧‧ Entrance

(42)‧‧‧Export

(5) ‧‧‧Fins

(6)‧‧‧moving wings

(61)‧‧‧Axis hole

(62) ‧‧‧ shaft

(63) ‧‧‧Fixed Department

(7) ‧‧‧Power unit

(IGV) ‧‧Entry Guide Wing (IGV)

(U)‧‧‧ fluid tangent speed

(α1)(α2)(α3)‧‧‧ angle

(β1)(β2)(β3)‧‧‧ Angle

(ω1)(ω2)(ω3)‧‧‧ angular velocity

(V1) (V2) (V3) ‧ ‧ angular velocity

(8) ‧ ‧ heat pipe

(9)‧‧‧Fin group

(10) ‧‧‧fan

The first figure is a perspective view of the heat exchanger of the present invention.

The second drawing is a partial cross-sectional view of the heat exchanger of the present invention.

The third figure is a schematic view of an embodiment of the heat exchanger of the present invention.

The fourth figure is a schematic diagram of the fluid flow direction of the heat exchanger of the present invention.

The fifth figure is a schematic diagram of a conventional heat exchanger.

First, referring to the first and second figures, the present invention is a heat exchanger comprising: a body (1) including a first conduit (2) and a second conduit (4), the first The pipe (2) is formed along the pipe length direction into a hollow pipe including an inlet (23) and an outlet (24), and the first pipe (2) is provided with at least one stationary wing (3), The stationary wing (3) is connected to the inner tube wall (21) of the first line (2). And the second pipe (4) has a larger diameter than the first pipe (2), and is axially sleeved and welded to the first pipe (2), and the hollow pipe is formed into two closed ends along the pipe length direction. The second pipeline (4) is respectively provided with an inlet (41) and an outlet (42), and the second conduit (4) is provided with at least one fin (5), the fin (5) Connecting the pipe wall (22) outside the first pipe (2).

Next, referring to the third figure, at least one moving wing (6) is disposed in the first pipe (2) along the length of the pipe, and is provided with a shaft hole (61); a rotating shaft (62) Provided in the shaft hole (61); a fixing portion (63), The rotating shaft (62) is pivotally connected; a power unit (7) is connected to the rotating shaft (62).

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiment of the invention illustrates that when the hot fluid and the cold fluid are to be heat exchanged, first, a hot fluid (indicated by the arrow) is attached to the second conduit (4), which merges through the fins. (5) thermally connecting the heat source of the hot fluid to the outer tube wall (22) of the first conduit (2) by means of fins (5), and then the outer tube wall (22) connecting the heat source is also Connected to the stationary wing (3), at which point the heat source of the hot fluid has been connected from the fin (5) to the stationary wing (3); then, the first line (2) is introduced into the cold fluid, causing the cold fluid to flow through the drive Static fins for fluid rectification and heat conduction (3). Wherein, the above fins are heat conductive materials.

In addition, the above-mentioned hot fluid and cold fluid are to be subjected to heat exchange, and a cold fluid (indicated by an arrow) may be connected to the second conduit (4), which flows through the fins (5) to be thermally conducted. The heat source of the cold fluid is connected to the outer tube wall (22) of the first conduit (2) by fins (5), and then the outer tube wall (22) connecting the heat source is also connected to the stationary wing (3). At this time, the heat source of the cold fluid has been connected from the fin (5) to the stationary wing (3); then, the hot fluid introduced into the first line (2) is caused to flow through the static fluid having the function of rectifying and conducting heat of the driving fluid. Wing (3).

Please refer to the fourth figure, wherein the structural design of the stationary wing (3) is such that the thickness (32) of the inlet toward the first conduit (2) is greater than the thickness of the outlet of the stationary blade toward the outlet of the first conduit (2). (33), and passing the fluid through the inlet guide vane (IGV) to form a fluid at an angle (β1), an angular velocity (ω1), and an angular velocity (α1), an angular velocity (V1), and then the fluid Through the moving wing (6), the fluid is formed into an angular (β2), an angular velocity (ω2) and an angular velocity (α2), an angular velocity (V2) component velocity, and then the fluid is passed through the stationary wing (3). Fluid shape The angular velocity of an angle (β3), an angular velocity (ω3), and an angle (α3) and an angular velocity (V3) can convert the energy of a small portion of the fluid tangential velocity (U) into pressure energy. In other words, the fluid pressure increases as the cold fluid passes through the stationary vanes (3).

It is worth mentioning that this design not only has the rectifying effect of the static wing (3) structure, but also contributes to the structure of the moving wing (6) that promotes the cold fluid. Wherein, at least one moving wing (6) is disposed in the first pipe (2) along the length of the pipe, and is provided with a shaft hole (61); and the rotating shaft (62) is disposed in the shaft hole ( 61); fixing a portion (63) pivotally connected to the rotating shaft (62); and connecting the power unit (7) to the rotating shaft (62), thereby agitating the moving wing (6), so the flow direction of the cold fluid It will be smoothly guided and adjusted into the moving wing (6), which can reduce the energy loss caused by the cold fluid flow, and can convert the mechanical energy into fluid energy, so that the stationary wing (3) can be guided to adjust the cold fluid smoothly. With the effect of increasing the pressure of cold fluids.

Among them, the static wing (3) structure also has a heat-conducting effect. When the cold fluid flows through the structure of the stationary wing (3), the static wing (3) connected to the heat source is heated by heat conduction, and the heat source of the hot fluid is exchanged by heat exchange. Take away to achieve the best thermal conductivity.

However, the above description is only one of the preferred embodiments of the present invention, and the scope of the patent application and the content of the specification according to the present invention are simply equivalently changed and replaced. All should still fall within the scope of protection covered by the scope of the patent application of the present invention.

(2) ‧‧‧First line

(21) ‧ ‧ inner wall

(22) ‧‧‧ outer wall

(23)‧‧‧ Entrance

(24)‧‧‧Export

(3) ‧‧‧Silence

(4) ‧‧‧Second pipeline

(41)‧‧‧ Entrance

(42)‧‧‧Export

(5) ‧‧‧Fins

(6)‧‧‧moving wings

(61)‧‧‧Axis hole

(62) ‧‧‧ shaft

(63) ‧‧‧Fixed Department

(7) ‧‧‧Power unit

Claims (17)

A heat exchanger includes: a body including a first pipe and a second pipe, the first pipe being formed along the pipe length direction into a hollow pipe including an inlet and an outlet, and the first pipe The road is provided with at least one static wing connected to the inner pipe wall of the first pipe; the second pipe has a larger diameter than the first pipe, and is axially sleeved and welded to the first pipe a hollow pipe formed as a closed end along the length of the pipe, the second pipe is respectively provided with an inlet and an outlet, and the second pipe is provided with at least one fin, and the fin is connected to the first pipe The pipe wall is outside the road, and the fin is disposed at a position corresponding to the stationary wing. The heat exchanger of claim 1, wherein the thickness of the stationary vane toward the first conduit inlet is greater than the thickness of the stationary vane toward the first conduit outlet. The heat exchanger of claim 1, wherein the stationary vane is provided with a shaft hole along the length of the tube of the first conduit. The heat exchanger of claim 3, wherein the plurality of static wing systems form a plurality of stationary wing groups, and each of the static wing groups of the static wing group is centered on the shaft hole and distributed in a radiation direction. . The heat exchanger according to claim 4, wherein the first pipe is provided with two or more sets of static wing groups along the length direction of the pipe, and each of the stationary wing groups is arranged at intervals. The heat exchanger of claim 1, wherein the fin system is a complex A plurality of fins are formed, and the fins of the fin set are distributed in the radiation direction with the tube wall outside the first tube as the axis. The heat exchanger of claim 1, wherein the fin is a heat conductive material. A heat exchanger includes: a body including a first pipe and a second pipe, the first pipe being formed along the pipe length direction into a hollow pipe including an inlet and an outlet, and the first pipe The road is provided with at least one static wing connected to the inner pipe wall of the first pipe; the second pipe has a larger diameter than the first pipe, and is axially sleeved and welded to the first pipe a hollow pipe formed as a closed end along the length of the pipe, the second pipe is respectively provided with an inlet and an outlet, and the second pipe is provided with at least one fin, and the fin is connected to the first pipe a wall outside the road, and the fin is disposed at a position corresponding to the stationary wing; at least one moving wing is disposed in the first pipeline along the length of the pipe, and is provided with a shaft hole; The shaft is disposed in the shaft hole; a fixing portion pivotally connected to the rotating shaft; and a power unit connected to the rotating shaft. The heat exchanger of claim 8, wherein the thickness of the stationary vane toward the first conduit inlet is greater than the thickness of the stationary vane toward the first conduit outlet. The heat exchanger of claim 9, wherein the stationary vane is provided with a shaft hole along the length of the tube of the first conduit. The heat exchanger according to claim 10, wherein the static wing system is a complex A plurality of static wing groups are formed, and each of the static wing groups of the static wing group is centered on the shaft hole and distributed in a radiation direction. The heat exchanger according to claim 11, wherein the first pipe is provided with two or more sets of static wing groups along the length direction of the pipe, and each of the stationary wing groups is arranged at intervals. The heat exchanger of claim 8, wherein the fins are plural and form a fin set, and each fin of the fin set is centered on the outer tube wall of the first pipeline The heart is distributed in the direction of radiation. The heat exchanger of claim 8, wherein the fin is a heat conductive material. The heat exchanger of claim 8, wherein the moving wing is an axial flow fan blade. The heat exchanger of claim 8, wherein the power unit is a motor. The heat exchanger of claim 8, wherein the stationary wing is spaced apart from the moving wing.