CN104976743A - Cooling device - Google Patents
Cooling device Download PDFInfo
- Publication number
- CN104976743A CN104976743A CN201410143442.1A CN201410143442A CN104976743A CN 104976743 A CN104976743 A CN 104976743A CN 201410143442 A CN201410143442 A CN 201410143442A CN 104976743 A CN104976743 A CN 104976743A
- Authority
- CN
- China
- Prior art keywords
- pipe arrangement
- cooling device
- thermal conductor
- cold
- producing medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- 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
Abstract
The invention relates to a cooling device. The cooling device for an air conditioner comprises a distribution pipe and a heat conduction piece. A refrigerant of the air conditioner flows through the distribution pipe. One side of the heat conduction piece is attached to the outer wall of the distribution pipe, and the other side of the heat conduction piece is attached to an electrical power element in the air conditioner. The cooling device is characterized in that the distribution pipe is provided with a spiral structure enabling the refrigerant to move spirally. According to the cooling device, the two-phase refrigerant can move spirally in the distribution pipe, so that bubbles in the refrigerant gather toward the center of the distribution pipe and the number of bubbles in the refrigerant nearby the heat conduction piece is reduced. Thus, the heat conduction efficiency of the cooling device is improved, and the cooling effect is improved.
Description
Technical field
The present invention relates to a kind of cooling device, particularly relate to a kind of cooling device for air conditioner.
Background technology
Air conditioner generally includes the electric power component realizing operation of air-conditioner and control, these electric power components can produce heat in operation of air-conditioner process, for guaranteeing electric power component safe and reliable operation, need to carry out efficiently radiates heat to these electric power components.
At present, there is a kind of mode of electric power component being dispelled the heat by liquid refrigerant in kind of refrigeration cycle.In order to improve the heat-sinking capability to electric power component, mainly can by following two kinds of modes: (one) improves radiating efficiency (i.e. pyroconductivity), (two) reduce the temperature of cooling cold-producing medium.Reduce cooling refrigerant temperature, low temperature liquid cold-producing medium after can handing over by using supercooling heat realizes, but because the method can make liquid refrigerant temperature be in the dew point (causing the temperature of condensation) of outdoor environment temperature below, cause cooling device and electric power component to produce to condense, therefore, the method can cause electric power element insulating bad, breaks down, affects product reliability.
In order to prevent condensation, JP Laid-Open 03-75424 and TOHKEMY 2011-112254 discloses the scheme addressed this problem.Specifically, according to these two parts of existing documents, by utilizing the liquid refrigerant in kind of refrigeration cycle between expansion valve and outdoor heat converter to be that electric power component dispels the heat, can namely utilize the liquid refrigerant that oil-to-air heat exchanger exports.Oil-to-air heat exchanger utilizes the sensible heat of air to carry out cooling refrigeration agent, so the temperature of cold-producing medium can not be reduced to below the dry-bulb temperature of air.On the other hand, because the dew point (causing the temperature of condensation) of air is bound to lower than the dry-bulb temperature of air, so the temperature of cold-producing medium can not drop to dew point (causing the temperature of condensation) below, solve the problem of easily condensation thus.
But, what bring is impact owing to being subject to pipe arrangement placement environment (as temperature, wind etc.) and internal refrigeration storage agent (as flow, flow velocity etc.) factor thereupon, the phenomenon of gas-liquid two-phase can be there is in the pipe arrangement inside being arranged on this kind of refrigeration cycle position, pipe arrangement inwall place has bubble, and it is well-known, comparatively liquid is poor for the heat conductivity of gas, due to the obstruct of bubble, greatly reduces the radiating effect of cooling device.
Figure 1A and Figure 1B schematically shows pipe arrangement 1 inside and there is bubble 5 to cooling device heat radiation impact.Cooling device shown in Figure 1A is formed by by the cylindrical shape pipe arrangement 1 of gas-liquid two-phase cold-producing medium and thermal conductor 2, and electric power component 3 is close on the side relative with pipe arrangement 1 of thermal conductor 2.Two phase refrigerant flows through pipe arrangement 1, and the bubble 5 in cold-producing medium is distributed in pipe arrangement 1, and wherein a part of bubble 5 can be attached on the inwall of the pipe arrangement 1 of thermal conductor 2.In use, heat along the conduction of direction shown in arrow in Figure 1B, because the heat conductivity of bubble 5 is poor, thus can reduce the cooling capacity of cooling device entirety.
Therefore, still need to make improvements the cooling device of power component electric in air conditioner, improve radiating efficiency further.
Summary of the invention
In order to overcome deficiency of the prior art, the invention provides a kind of cooling device, it can reduce the gathering of the pipe arrangement inwall place gaseous refrigerant near electric power component side, improves radiating efficiency.
According to a first aspect of the invention, cooling device for air conditioner comprises pipe arrangement and thermal conductor, the cold-producing medium of air conditioner flows through in pipe arrangement, the side of thermal conductor is attached to the outer wall of pipe arrangement, electric power component in the attached air conditioner of opposite side of thermal conductor, wherein pipe arrangement has the helicoidal structure making cold-producing medium make corkscrew motion.
According to a second aspect of the invention, the helicoidal structure making cold-producing medium make corkscrew motion is included in the spiral groove that the inwall of pipe arrangement is arranged, and spiral groove is formed by one or more spiral groove walls inwardly outstanding on the inwall of pipe arrangement.
According to a third aspect of the present invention, the helical angle of trench wall is 20 °-50 °.
According to a fourth aspect of the present invention, the height of trench wall is the 10-30% of the inside diameter of pipe arrangement.
According to a fifth aspect of the present invention, pipe arrangement embeds thermal conductor.
According to a sixth aspect of the invention, the helicoidal structure making cold-producing medium make corkscrew motion comprises the pipe arrangement section of helical coil.
According to the present invention the 7th aspect, on the basis in the 6th, the embedding thermal conductor at least partially of pipe arrangement section.
According to an eighth aspect of the present invention, on the basis in the 7th, the pipe arrangement part embedding thermal conductor in the pipe arrangement section of helical coil is linear.
According to a ninth aspect of the present invention, the helical angle of the pipe arrangement section of helical coil is 20 °-50 °.
According to a tenth aspect of the present invention, thermal conductor is made of metal.
Adopt according to cooling device of the present invention, two phase refrigerant can make corkscrew motion in pipe arrangement, bubble in cold-producing medium is collected towards the center of the helicoidal structure of pipe arrangement, reduce the bubbles volume in cold-producing medium near thermal conductor, thus improve the heat transfer efficiency of cooling device, improve cooling effect.
Accompanying drawing explanation
Figure 1A and Figure 1B schematically shows the cooling device adjusting machine for room of the prior art.
Fig. 2 A is the schematic diagram of cooling device according to a first embodiment of the present invention, and what illustrated therein is bubble in two phase refrigerant collects state.
Fig. 2 B is along A in Fig. 2 A to the schematic diagram of the cooling device of the first embodiment of the invention observed, and what illustrated therein is bubble in two phase refrigerant collects state.
Fig. 3 A and Fig. 3 B is the schematic diagram of the pipe arrangement in the cooling device of first embodiment of the invention, which show respectively height and the angle of the trench wall on pipe arrangement inwall.
Fig. 4 A and Fig. 4 B is the schematic diagram of the cooling device of first embodiment of the invention, and wherein the wall of pipe arrangement is opened by partly cutting.
Fig. 5 A is the schematic diagram of cooling device according to a second embodiment of the present invention.
Fig. 5 B is along A ' in Fig. 5 A to the schematic diagram of the cooling device of the second embodiment of the invention observed.
Fig. 6 A, Fig. 6 B and Fig. 6 C are respectively the stereogram of the cooling device of a kind of version according to a second embodiment of the present invention, side view and top view.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the invention will be further described.Set forth more details in the following description so that fully understand the present invention; but the present invention obviously can implement with multiple this alternate manner described that is different from; those skilled in the art when doing similar popularization, deduction without prejudice to when intension of the present invention according to practical situations, therefore should can not limit the scope of the invention with the content of this specific embodiment.
First embodiment
Below, with reference to Fig. 2 A, 2B, 3A, 3B, 4A and 4B explanation cooling device according to a first embodiment of the present invention.Fig. 2 A is the schematic diagram of cooling device according to a first embodiment of the present invention, and Fig. 2 B is along A in Fig. 2 A to the schematic diagram of the cooling device of the first embodiment of the invention observed, and for clear, bubble position is shown, eliminates trench wall in figure.Fig. 3 A and Fig. 3 B is the schematic diagram of the pipe arrangement 10 in cooling device, which show respectively height and the angle of the trench wall 11 on pipe arrangement 10 inwall.The stereogram of the cooling device that the wall that Fig. 4 A and Fig. 4 B shows pipe arrangement is opened by partial sectional and side view.
According to the present invention, the cooling device for air conditioner comprises substantially columnar pipe arrangement 10 and thermal conductor 20.The thermal conductor 20 of cooling device is roughly in tabular, and its side is attached to the outer wall of pipe arrangement 10, and contrary opposite side heat transfer ground coordinates the electric power component 30 in air conditioner.Thermal conductor 20 is made up of the material that heat conductivility is good, such as, can be made of metal, and the sheet material of aluminum specifically can be adopted to make.Cold-producing medium in the kind of refrigeration cycle of air conditioner is conducted through the pipe arrangement 10 of cooling device, and pipe arrangement 10 has the helicoidal structure making cold-producing medium make corkscrew motion.
As shown in Fig. 3 A, Fig. 3 B, Fig. 4 A and Fig. 4 B, the helicoidal structure that the pipe arrangement 10 of the first embodiment has is included in the spiral groove that the inwall of pipe arrangement 10 is arranged, and cold-producing medium can flow along spiral groove.More specifically, spiral dress groove can be formed by least one inwardly outstanding spiral groove wall 11 on the inwall of pipe arrangement 10.The quantity of trench wall 11 is not limited only to one, also can be more.Such as, Fig. 3 A shows the cross section of pipe arrangement 10, therefrom can see pipe arrangement 10 inwall inwardly projecting three spiral trench walls 11, three trench walls 11 be equally distributed, but also can have other versions, as non-even distribution type.Preferably, the height h of trench wall 11 is the 10-30% of pipe arrangement 10 inside diameter, and such height will be conducive to the helical flow of cold-producing medium, but the pressure loss that can not cause excessive obstruction to the flowing of cold-producing medium and increase in pipe.
Another aspect, as shown in Figure 3 B, the helixangleθ of spiral groove wall 11 is preferably 20 °-50 °, that is, the angle θ between the tangent line of trench wall 11 and the axis B of linearly extended pipe arrangement 10 is preferably arranged in the scope of 20 °-50 °.In order to guide the screw of cold-producing medium, it is preferably that the angle of scope like this is arranged, specifically, if helixangleθ is too small, possibly the cold-producing medium rotational flow fully flowing through pipe arrangement 10 cannot be made, but, if helixangleθ is excessive, then can produce excessively opposing to cold-producing medium, cause the excessive pressure loss, this is also less desirable.
The pipe arrangement 10 of cooling device is made with the material that heat conductivility is good, such as metal.Trench wall 11 is such as integrally formed on pipe arrangement 10 inwall by methods such as tapping.Between pipe arrangement 10 and thermal conductor 20, contact area should be large as much as possible, for this reason, can pipe arrangement 10 be embedded in thermal conductor 20 at least partially, as shown in Figure 4 B, the mode that columnar like this pipe arrangement 10 can contact with face with thermal conductor 20 is together attached to each other, thus makes heat transfer optimum.
Cooling device can at random orientation be arranged in air conditioner.Preferably, the pipe arrangement 10 of cooling device is arranged in air conditioner vertically, and the two phase refrigerant in kind of refrigeration cycle passes through pipe arrangement 10 from top to bottom or from bottom to up.After cold-producing medium enters the pipe arrangement 10 of cooling device, two phase refrigerant will be for the helical movement along helicoidal structure (i.e. spiral groove).Bubble 5 is wherein made to be gathered in the middle part of pipe arrangement 10 under the effect of the centrifugal force that cold-producing medium produces in screw, as shown in Figure 2 B, near such pipe arrangement 10 inwall, bubble 5 does not exist substantially, guarantee thus to be liquid state with the cold-producing medium of pipe arrangement 10 contact internal walls, thus improve the cold-producing medium in pipe arrangement 10 via the heat conduction efficiency between the tube wall of pipe arrangement 10 and thermal conductor 20, realize dispelling the heat to the Quick uniform of electric power component 30.
Second embodiment
Fig. 5 A and Fig. 5 B shows according to a second embodiment of the present invention, and wherein Fig. 5 B is the schematic diagram along A ' in Fig. 5 A to the cooling device of the second embodiment observed.
According to the second embodiment, the cooling device dispelled the heat for the electric power component 30 ' in air conditioner comprises pipe arrangement 10 ' and thermal conductor 20 ' equally.Different from the first embodiment, pipe arrangement 10 ' in second embodiment has a pipe arrangement section 12 ' of coiling in the shape of a spiral, entrance pipe arrangement section 16 ' and outlet pipe arrangement section 18 ', and wherein the pipe arrangement section 12 ' of helical coil constitutes the helicoidal structure making two phase refrigerant make corkscrew motion.Thermal conductor 20 ' can be attached on the side outer wall of the pipe arrangement section 12 ' of helical coil with heat conduction, and electrically power component 30 ' is attached on the side contrary with pipe arrangement section 12 ' of thermal conductor 20 '.Identical with the first embodiment, thermal conductor 20 ' and pipe arrangement 10 ' can be made of metal.
In order to make the heat conductivility between the pipe arrangement section 12 ' of helical coil and thermal conductor 20 ' optimum, preferably, pipe arrangement section 12 ' be embedded into thermal conductor 20 ' at least partially, thus, pipe arrangement section 12 ' is contacted with forming surface between thermal conductor 20 ', and contact area should be large as much as possible.The helical angle of the pipe arrangement section 12 ' of helical coil, preferably in the scope of 20 °-50 °, like this, can not cause centrifugal force not enough because helical angle is too small.
In addition, as shown in Figure 5 B, the pipe arrangement section 12 ' that the entrance pipe arrangement section 16 ' of cooling device and outlet pipe arrangement section 18 ' are tangential to helical coil is arranged, and this also forms corkscrew motion by contributing to two phase refrigerant further.
Cooling device according to the second embodiment both can laterally also can vertically be placed in air conditioner.When two phase refrigerant flows through cooling device by the pipe arrangement section 12 ' of helical coil, cold-producing medium is for the helical movement along pipe arrangement section 12 ', thus the centrifugal force that two phase refrigerant produces makes wherein bubble 5 move towards the central authorities of helicoidal structure away from thermal conductor 20 ', as shown in Figure 5 B, guarantee that the inwall bubble-free of pipe arrangement and the attached side of thermal conductor 20 ' is adhered to, improve heat conductivility thus.
In addition, other version can also be had according to a second embodiment of the present invention.As shown in Fig. 6 A, Fig. 6 B and Fig. 6 C, can by the pipe arrangement section 12 of helical coil " in pipe arrangement at least partially 15 " make linear.That is, from the top view of cooling device, as shown in Figure 6 C, pipe arrangement section 12 " in D font.Rectilinear pipe arrangement part 15 " and thermal conductor 20 " attached together, preferably, rectilinear pipe arrangement part 15 " be embedded into thermal conductor 20 " in, thus larger contact area and heat transfer area can be guaranteed, thus more effectively to electric power component 30 " dispel the heat.
Adopt the cooling device of above two embodiments of the present invention, cold-producing medium in kind of refrigeration cycle between expansion valve and outdoor heat converter can be incorporated into pipe arrangement 10, in 10 ', helicoidal structure in cooling device is configured to make the two phase refrigerant by pipe arrangement make corkscrew motion, produce corresponding centrifugal force and make bubble 5 in cold-producing medium with the center of the helicoidal structure towards pipe arrangement away from thermal conductor 20, the direction of 20 ' is collected, and, due to close pipe arrangement 10, the flow velocity in 10 ' outside accelerates, thermal conductor 20 can be made, be easier to peel off from pipe arrangement inwall by thermogenetic bubble near 20 ', thus significantly improve the radiating efficiency of cooling device, realize the heat radiation of air conditioner internal electric power component Quick uniform.
Although the present invention with preferred embodiment openly as above, it is not that any those skilled in the art without departing from the spirit and scope of the present invention, can make possible variation and amendment for limiting the present invention.Therefore, every content not departing from technical solution of the present invention, any amendment done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all fall within protection domain that the claims in the present invention define.
Claims (10)
1. a cooling device, described cooling device is used for air conditioner, and described cooling device comprises pipe arrangement and thermal conductor, the cold-producing medium of described air conditioner flows through in described pipe arrangement, the side of described thermal conductor is attached to the outer wall of described pipe arrangement, electric power component in the attached described air conditioner of opposite side of described thermal conductor, is characterized in that
Described pipe arrangement has the helicoidal structure making described cold-producing medium make corkscrew motion.
2. cooling device as claimed in claim 1, it is characterized in that, the described helicoidal structure making cold-producing medium make corkscrew motion is included in the spiral groove that the inwall of described pipe arrangement is arranged, and described spiral groove is formed by one or more spiral groove walls inwardly outstanding on the inwall of described pipe arrangement.
3. cooling device as claimed in claim 2, it is characterized in that, the helical angle of described trench wall is 20 °-50 °.
4. cooling device as claimed in claim 2, it is characterized in that, the height of described trench wall is the 10-30% of the inside diameter of described pipe arrangement.
5. the cooling device according to any one of claim 1-4, is characterized in that, described pipe arrangement embeds described thermal conductor.
6. cooling device as claimed in claim 1, is characterized in that, described in make cold-producing medium make corkscrew motion helicoidal structure comprise the pipe arrangement section of helical coil.
7. cooling device as claimed in claim 6, is characterized in that, the described thermal conductor of embedding at least partially of described pipe arrangement section.
8. cooling device as claimed in claim 7, it is characterized in that, the pipe arrangement part embedding described thermal conductor in the pipe arrangement section of described helical coil is linear.
9. cooling device as claimed in claim 6, it is characterized in that, the helical angle of the pipe arrangement section of described helical coil is 20 °-50 °.
10. cooling device as claimed in claim 1, it is characterized in that, described thermal conductor is made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143442.1A CN104976743A (en) | 2014-04-09 | 2014-04-09 | Cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143442.1A CN104976743A (en) | 2014-04-09 | 2014-04-09 | Cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104976743A true CN104976743A (en) | 2015-10-14 |
Family
ID=54273504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410143442.1A Pending CN104976743A (en) | 2014-04-09 | 2014-04-09 | Cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104976743A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131525A (en) * | 2018-01-22 | 2018-06-08 | 南通中远克莱芬船舶工程有限公司 | A kind of dehumidifier socket wrench specially adapted for it compensator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2205520Y (en) * | 1994-09-05 | 1995-08-16 | 王金山 | Energy saving air conditioner |
| CN2227814Y (en) * | 1995-02-24 | 1996-05-22 | 石家庄铝厂 | Refrigerating tube for heat exchanger |
| CN201121961Y (en) * | 2007-09-03 | 2008-09-24 | 特灵空调系统（江苏）有限公司 | Air-conditioning unit equipped with intelligent power module |
| JP2011112254A (en) * | 2009-11-25 | 2011-06-09 | Daikin Industries Ltd | Refrigeration device |
| CN201909495U (en) * | 2010-12-28 | 2011-07-27 | 郑引河 | Multi-tube coaxial type sleeve heat exchanger |
| CN103206882A (en) * | 2013-03-29 | 2013-07-17 | 合肥通用机械研究院 | Pipe fitting for improving efficiency of evaporator by enabling refrigerant to flow spirally |
-
2014
- 2014-04-09 CN CN201410143442.1A patent/CN104976743A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2205520Y (en) * | 1994-09-05 | 1995-08-16 | 王金山 | Energy saving air conditioner |
| CN2227814Y (en) * | 1995-02-24 | 1996-05-22 | 石家庄铝厂 | Refrigerating tube for heat exchanger |
| CN201121961Y (en) * | 2007-09-03 | 2008-09-24 | 特灵空调系统（江苏）有限公司 | Air-conditioning unit equipped with intelligent power module |
| JP2011112254A (en) * | 2009-11-25 | 2011-06-09 | Daikin Industries Ltd | Refrigeration device |
| CN201909495U (en) * | 2010-12-28 | 2011-07-27 | 郑引河 | Multi-tube coaxial type sleeve heat exchanger |
| CN103206882A (en) * | 2013-03-29 | 2013-07-17 | 合肥通用机械研究院 | Pipe fitting for improving efficiency of evaporator by enabling refrigerant to flow spirally |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131525A (en) * | 2018-01-22 | 2018-06-08 | 南通中远克莱芬船舶工程有限公司 | A kind of dehumidifier socket wrench specially adapted for it compensator |
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Application publication date: 20151014 |