CN211040546U - Straight tube type double-helix ultraviolet L ED lamp device - Google Patents
Straight tube type double-helix ultraviolet L ED lamp device Download PDFInfo
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- CN211040546U CN211040546U CN201922224597.9U CN201922224597U CN211040546U CN 211040546 U CN211040546 U CN 211040546U CN 201922224597 U CN201922224597 U CN 201922224597U CN 211040546 U CN211040546 U CN 211040546U
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Abstract
The utility model relates to a straight tube type double helix formula ultraviolet L ED lamp device, including cylindrical water-cooling radiator and a plurality of ultraviolet L ED light source module, water-cooling radiator includes inner tube, outer tube and logical water apron, outerOne end of the pipe is closed, the other end of the outer pipe is connected with a water passing cover plate, the inner pipe is coaxially arranged in the outer pipe, one end of the inner pipe is communicated with the inner cavity of the outer pipe, the other end of the inner pipe is connected with the water passing cover plate, and the inner radius R of the inner pipe of the water-cooled radiatorIiInner tube outer radius RIoAnd outer tube inner radius ROiSatisfy a specific quantitative relational expression, ultraviolet L ED light source module is two helices and arranges and install on the outer wall of outer tube compared with the prior art, the utility model provides high irradiance degree of consistency, power density of whole light source on the circumferencial direction are high, the radiating effect is good, can be applied to the field that needs high strength ultraviolet radiation such as photocuring, photosynthesis, disinfection and sterilization.
Description
Technical Field
The utility model belongs to the technical field of the semiconductor lighting technology and specifically relates to a straight tube type double helix formula ultraviolet L ED lamp device.
Background
Compared with the traditional ultraviolet discharge lamp, the ultraviolet L ED lamp has the advantages of low cost, energy conservation, high efficiency, environmental protection and flexible use, so that the ultraviolet L ED lamp has a very wide application prospect, and the use amount in the fields of photocuring, photosynthesis, disinfection and sterilization is gradually increased.
The application of Chinese utility model with publication No. CN105822923A discloses a L ED lamp tube for photocatalytic reaction, the L ED lamp tube adopts water-cooling heat dissipation, and adopts a plurality of linear L ED lamp strips uniformly adhered to the outer side of the water-cooling tube through insulating heat-conducting glue, however, the L ED lamp device has the following problems that 1, the linear L ED lamp strip is adopted as a packaging structure, the poor heat dissipation of the bottom substrate of the linear L ED lamp strip determines that the packaging distance of adjacent chips on the lamp strip is large, therefore, the total power density of the L ED lamp tube is lower, the illumination distribution is uneven, the irradiance is difficult to meet the requirements of the application of the photosynthesis and the photocuring industry, 2, L ED lamp strips are directly adhered to the cylindrical surface by the heat-conducting glue, L ED is a plane on the bottom surface of the lamp strip, the adhesion degree on the cylindrical surface is poor, the adhesion layer thickness is thick, the heat dissipation effect is influenced, 3, the schematic diagram can know, the water inlet pipe and the water outlet pipe of the water-cooling tube are not specially designed, the water-cooling efficiency is difficult to be exerted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a straight tube type double helix formula ultraviolet L ED lamp device for overcoming the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
a straight tube type double helix ultraviolet L ED lamp device comprises a cylindrical water-cooling radiator and a plurality of ultraviolet L ED light source modules, wherein the water-cooling radiator comprises an inner tube, an outer tube and a water passing cover plate, one end of the outer tube is sealed, the other end of the outer tube is connected with the water passing cover plate, the inner tube is coaxially arranged in the outer tube, one end of the inner tube is communicated with an inner cavity of the outer tube, the other end of the inner tube is connected with the water passing cover plate,
inner pipe radius R of water-cooled radiatorIiInner tube outer radius RIoAnd outer tube inner radius ROiSatisfies the following quantitative relationship:
the ultraviolet L ED light source module is arranged on the outer wall of the outer tube in a double-helix mode.
Further, the inner tube be the outlet pipe, inner tube and outer tube between the annular space that forms be the inlet tube, outlet pipe and inlet tube in the closed end department intercommunication that is close to the outer tube, the apron that leads to water on be equipped with water inlet and delivery port, the inlet tube is connected to the water inlet, the outlet pipe is connected to the delivery port, the internal diameter of water inlet and delivery port is the same.
Further, the double-helix arrangement is that two helix lines are arranged on the outer wall of the outer tube, the two helix lines are cylindrical helix lines, the ultraviolet L ED light source modules are uniformly distributed on the two helix lines, the ultraviolet L ED light source modules on the two helix lines correspond to each other in pairs, and the ultraviolet L ED light source modules are symmetrically distributed by taking the central axis of the water-cooled radiator as a symmetric center.
Furthermore, a plurality of installation planes formed by cutting are arranged on the outer wall of the outer tube, the centers of the installation planes are distributed on the tube wall of the outer tube in a double-spiral mode, and an ultraviolet L ED light source module is installed on one installation plane.
Further, the ultraviolet L ED light source module comprises a chip and a metal substrate which are connected with each other, the shape and the size of the metal substrate are the same as those of the installation plane, and the metal substrate is fixed on the installation plane through bolts.
Furthermore, mounting holes are formed in four corners of the metal substrate, threaded holes are formed in the corresponding positions of the mounting plane, and the bolts penetrate through the mounting holes and then are connected with the bolt holes to be used for connecting the metal substrate and the mounting plane.
Furthermore, the metal substrate is a copper substrate.
Furthermore, an insulating heat conduction layer is arranged between the metal substrate and the mounting plane, and the insulating heat conduction layer adopts an insulating heat conduction adhesive layer with aluminum nitride nano powder.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a double helix formula of ultraviolet L ED light source module is arranged and can is improved the irradiance degree of whole light source on the circumferencial direction to can make and set up the ultraviolet L ED light source module of a great deal more on same water-cooled radiator, every ultraviolet L ED light source module can set up more chips, showing and improving every ultraviolet L ED light source module, and install holistic power density, this structure distributes more evenly on water-cooled radiator simultaneously, helps improving the radiating effect.
2. The utility model discloses a rational design water-cooling radiator's inner tube and outer tube size for water-cooling radiator's inflow and water yield reach basic unanimity, can improve water-cooling radiator's radiating efficiency by the maximize, arrange more ultraviolet L ED light source module for the realization and provide the heat dissipation basis.
3. The utility model discloses set up a plurality of mounting surfaces that a plurality of cuttings formed at the outer wall of outer tube, mounting surface can laminate every ultraviolet L ED light source module of precision, and the heat conduction area between increase ultraviolet L ED light source module and the water-cooling radiator helps improving the radiating efficiency.
4. An insulating heat-conducting adhesive layer with aluminum nitride nano powder is arranged between the metal substrate and the mounting plane, so that the heat dissipation effect of the ultraviolet L ED light source module is further improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic side view of the cross-sectional view of the present invention.
Fig. 3 is a schematic structural view of the water passing cover plate.
Fig. 4 is a schematic structural view of the outer tube.
Fig. 5 is a schematic structural diagram of an ultraviolet L ED light source module.
Reference numeral 1, a water-cooling radiator, 11, an inner pipe, 12, an outer pipe, 121, a mounting plane, 13, a water passing cover plate, 131, a water inlet, 132, a water outlet, 2, an ultraviolet L ED light source module, 21, a chip, 22, a metal substrate, 23, an electrode, 24, a mounting hole, 3 and an insulating heat conduction layer.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 and 3, the present embodiment provides a straight-tube double-helix ultraviolet L ED lamp device, which comprises a cylindrical water-cooled radiator 1 and a plurality of ultraviolet L ED light source modules 2, wherein the cylindrical water-cooled radiator 1 comprises an inner tube 11, an outer tube 12 and a water passing cover plate 13, one end of the outer tube 12 is closed, the other end is connected with the water passing cover plate 13, the inner tube 11 and the outer tube 12 are coaxially arranged and arranged in the outer tube 12, one end of the inner tube 11 is communicated with an inner cavity of the outer tube 12, the other end of the inner tube 11 is connected with the water passing cover plate 13, the inner tube 11 is a water outlet tube, an annular space formed between the inner tube 11 and the outer tube 12 is a water inlet tube, the water outlet tube and the water inlet tube are communicated at a position close to the closed end of the outer tube 12, a water inlet 131 and a water outlet 132 are arranged.
In order to make the water-cooling pipe radiator work in a good state and have the best radiating efficiency, the conductance and the flow of the water inlet pipe and the water outlet pipe of the water-cooling pipe radiator are equal. According to the conductance formula:
C＝Q/ΔP (1)
wherein C is conductance, Q is flow rate, and Δ P is pressure difference between two ends. Therefore, the pressure difference delta P between the water inlet pipe and the water outlet pipe is also equal. According to the N-S equation:
wherein f is mass force, rho is density, p is pressure, ν is velocity, and μ is viscosity. For steady state flow in a horizontal duct, the mass force f in the horizontal direction is 0 and the velocity u in the horizontal direction varies with time
The N-S equation can be expressed as:
where r is the radius and x is the horizontal distance. The following can be obtained:
integral conversion is performed on equation (4):
wherein, c1Is a constant.
Integrating equation (5) again:
for a circular section cylindrical tube (inlet tube), due to the boundary conditions: when R ═ RIoU is 0; when R ═ ROi，u＝0。
C may be substituted by formula (6)1Comprises the following steps:
c is to1Substituting the integral formula to obtain the horizontal velocity u at the radius r in the water inlet piper：
Then the inlet tube flow is:
according to the Poisea formula, the flow of the water outlet pipe is as follows:
due to Qin＝QoutAnd the pressure difference is equal to each other,
and
the term cancels, then:
namely, the inner radius R of the inner pipe (11) of the water-cooling radiator (1)IiThe outer radius R of the inner tube (11)IoAnd the inner radius R of the outer tube (12)OiSatisfy the quantitative relation:
in the embodiment, the inner diameter of the water-cooling pipe radiator is 26mm, and the thickness of the water-cooling pipe radiator is 5 mm; if the thickness of the inner tube 11 is 1.5mm, the outer diameter of the inner tube 11 is 16mm and the inner diameter of the inner tube 11 is 13mm according to the pipe diameter relationship between the inner tube 12 and the outer tube 12.
The ultraviolet L ED light source modules 2 are arranged on the outer surface of the outer tube 12 in a double-helix mode, wherein the double-helix mode is that two helical lines are arranged on the outer wall of the outer tube 12, the two helical lines are cylindrical helical lines, the ultraviolet L ED light source modules 2 are uniformly distributed on the two helical lines, the ultraviolet L ED light source modules 2 on the two helical lines correspond to each other in pairs, and are respectively arranged at symmetrical positions on two sides of the outer tube 12 on the same axial distance of the cylindrical water-cooling radiator 1, namely, the ultraviolet L ED light source modules are symmetrically distributed by taking the central shaft of the water-cooling radiator 1 as a.
As shown in fig. 4, the outer wall of the outer tube 12 is provided with a plurality of mounting planes 121 formed by cutting, the centers of the plurality of mounting planes 121 are distributed on the wall of the outer tube 12 in a double-spiral manner, and an ultraviolet L ED light source module 2 is mounted on one of the mounting planes 121.
As shown in FIG. 5, the UV L ED light source module 2 comprises a chip 21 and a metal substrate 22 connected to each other, the metal substrate 22 is a copper substrate having the same shape and size as those of the mounting plane 121, mounting holes 24 with small inner diameters are formed at four corners of the metal substrate 22, screw holes are formed at corresponding positions of the mounting plane 121, bolts are inserted into the mounting holes 24 and then connected with the bolt holes for connecting the metal substrate 22 with the mounting plane 121, an insulating and heat-conducting layer 3 is arranged between the metal substrate 22 and the mounting plane 121, the insulating and heat-conducting layer 3 is an insulating and heat-conducting glue layer of aluminum nitride nanopowder with high heat conductivity, and in the embodiment, the UV L ED light source module 2 is composed of six sizes 2.8 × 2.8.8 mm2The chips 21 with rated power of 10W are arranged in a straight line and are tightly attached to the copper substrate, so that the power density of each ultraviolet L ED light source module 2 is higher than 100W/cm2. Electrodes 23 are located on both sides of the copper substrate.
The ultraviolet L ED light source module 2 adopting the double-spiral distribution structure has good radiation uniformity in the circumferential direction, and the optimized structure improves the heat dispersion performance of the light source, so that the ultraviolet L ED light source module can be applied to the field of industrial synthesis of solid phosgene and the like requiring cylindrical high-intensity ultraviolet radiation light sources.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. The utility model provides a straight tube type double helix formula ultraviolet L ED lamp device, includes cylindrical water-cooling radiator (1) and a plurality of ultraviolet L ED light source module (2), water-cooling radiator (1) include inner tube (11), outer tube (12) and lead to water apron (13), outer tube (12) one end seal, outer tube (12) other end connect and lead to water apron (13), inner tube (11) coaxial setting in outer tube (12), the one end of inner tube (11) and the inner chamber intercommunication of outer tube (12), the other end of inner tube (11) is connected and is led to water apron (13), its characterized in that,
the inner radius R of the inner pipe (11) of the water-cooling radiator (1)IiThe outer radius R of the inner tube (11)IoAnd the inner radius R of the outer tube (12)OiSatisfies the following quantitative relationship:
the ultraviolet L ED light source module (2) is arranged on the outer wall of the outer tube (12) in a double-spiral mode.
2. The straight tube type double helix ultraviolet L ED lamp device as claimed in claim 1, wherein the inner tube (11) is an outlet tube, the annular space formed between the inner tube (11) and the outer tube (12) is an inlet tube, the outlet tube and the inlet tube are communicated at the closed end near the outer tube (12), the water passing cover plate (13) is provided with a water inlet (131) and a water outlet (132), the water inlet (131) is connected with the inlet tube, the water outlet (132) is connected with the outlet tube, and the inner diameters of the water inlet (131) and the water outlet (132) are the same.
3. The straight tube type double helix ultraviolet L ED lamp device according to claim 1, wherein the double helix arrangement is characterized in that two helix lines are arranged on the outer wall of the outer tube (12), the two helix lines are both cylindrical helix lines, the ultraviolet L ED light source modules (2) are uniformly distributed on the two helix lines, and the ultraviolet L ED light source modules (2) on the two helix lines correspond to each other two by two and are symmetrically distributed by taking the central axis of the water-cooled heat sink (1) as a symmetric center.
4. The straight-tube double-helix ultraviolet L ED lamp device as claimed in claim 1, wherein the outer wall of the outer tube (12) is provided with a plurality of installation planes (121) formed by cutting, the centers of the installation planes (121) are distributed in a double-helix manner on the wall of the outer tube (12), and an ultraviolet L ED light source module (2) is installed on one installation plane (121).
5. The straight-tube double-helix ultraviolet L ED lamp device as claimed in claim 4, wherein the ultraviolet L ED light source module (2) comprises a chip (21) and a metal substrate (22) connected with each other, the shape and size of the metal substrate (22) are the same as those of the mounting plane (121), and the metal substrate (22) is fixed on the mounting plane (121) by bolts.
6. The straight-tube double-helix ultraviolet L ED lamp device as claimed in claim 5, wherein the metal base plate (22) has mounting holes (24) at four corners, the mounting plane (121) has screw holes at corresponding positions, and the bolts pass through the mounting holes (24) and then connect with the bolt holes for connecting the metal base plate (22) and the mounting plane (121).
7. The straight-tube double-helix ultraviolet L ED lamp device as claimed in claim 5, wherein the metal substrate (22) is copper.
8. A straight-tube double-helix ultraviolet L ED lamp device according to claim 5, wherein an insulating and heat conducting layer (3) is arranged between the metal substrate (22) and the mounting plane (121), and the insulating and heat conducting layer (3) is made of an insulating and heat conducting adhesive layer containing aluminum nitride nanopowder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224597.9U CN211040546U (en) | 2019-12-12 | 2019-12-12 | Straight tube type double-helix ultraviolet L ED lamp device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224597.9U CN211040546U (en) | 2019-12-12 | 2019-12-12 | Straight tube type double-helix ultraviolet L ED lamp device |
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| CN211040546U true CN211040546U (en) | 2020-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059483A (en) * | 2019-12-12 | 2020-04-24 | 复旦大学 | Straight tube type double helix formula ultraviolet LED lamp device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059483A (en) * | 2019-12-12 | 2020-04-24 | 复旦大学 | Straight tube type double helix formula ultraviolet LED lamp device |
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