WO2018133481A1 - 一种易成型液冷led灯具散热模组 - Google Patents

一种易成型液冷led灯具散热模组 Download PDF

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Publication number
WO2018133481A1
WO2018133481A1 PCT/CN2017/107947 CN2017107947W WO2018133481A1 WO 2018133481 A1 WO2018133481 A1 WO 2018133481A1 CN 2017107947 W CN2017107947 W CN 2017107947W WO 2018133481 A1 WO2018133481 A1 WO 2018133481A1
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Prior art keywords
liquid
heat
liquid flow
led lamp
easy
Prior art date
Application number
PCT/CN2017/107947
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English (en)
French (fr)
Inventor
伍婵娟
Original Assignee
福建省中科生物股份有限公司
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Filing date
Publication date
Priority claimed from CN201710036871.2A external-priority patent/CN106793709A/zh
Priority claimed from CN201720062994.9U external-priority patent/CN206488251U/zh
Application filed by 福建省中科生物股份有限公司 filed Critical 福建省中科生物股份有限公司
Priority to US16/098,756 priority Critical patent/US10634335B2/en
Priority to CA3013255A priority patent/CA3013255A1/en
Priority to EP17893330.5A priority patent/EP3572726B1/en
Priority to MX2018011077A priority patent/MX2018011077A/es
Publication of WO2018133481A1 publication Critical patent/WO2018133481A1/zh
Priority to IL261017A priority patent/IL261017B/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/56—Cooling arrangements using liquid coolants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/508—Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/16—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a heat-dissipating module for an easy-to-form liquid cold LED lamp.
  • the prior art liquid cooling heat dissipating device generally adopts the following two structures: 1) two-plate upper and lower structure, the upper and lower plates are respectively machined and engraved water paths, and the two plates are combined and sealed with a waterproof ring; 2) The heat pipe or the copper pipe is used as the liquid conveying carrier, and the welding process is adopted in the circuit.
  • the above two manufacturing processes are costly and slow in processing, and are not suitable for mass production. In the field of LED lamps, there are few water cooling applications.
  • the invention provides an easy-to-form liquid-cooled LED lamp heat-dissipating module, which overcomes the deficiencies of the prior art liquid-cooling heat-dissipating device.
  • an easy-to-form liquid-cooled LED lamp heat-dissipating module comprising a cooling body and two plugs, the cooling body is formed with a liquid flow channel, and the two plugs are respectively matched with the liquid circulation
  • a heat source ie, a heating component such as an LED or a driving power source
  • the number of the liquid flow channels is several, which is used for achieving step-by-step communication, and the liquid inlet ends of the respective liquid flow channels are respectively
  • the liquid outlet end of the liquid flow channel of the adjacent stage is located at the same end of the cooling plate; the liquid inlet end of the first stage liquid flow channel is connected with the liquid inlet hole provided on the plug at the end of the same stage, and the liquid flow channel of the last stage liquid flow channel is connected.
  • the end is connected with the liquid outlet provided on the plug at the end thereof, and the liquid inlet end of the liquid flow passages other than the first-stage liquid flow passage and the liquid discharge end of the upper first liquid flow passage respectively pass through the plug at the end of the liquid flow passage.
  • the communication slot provided on the upper side is connected;
  • the cooling body is a cooling plate
  • the liquid flow channel is formed by a metal or high thermal conductivity non-metal integral molding process.
  • the cooling body is a cooling plate that is extruded into the liquid flow path by aluminum.
  • the number of the liquid flow channels is an even number, and the liquid inlet holes and the liquid outlet holes are provided in the same plug; or the number of the liquid flow channels is an odd number greater than 1, the liquid inlet
  • the hole is disposed in one of the plugs, and the liquid outlet hole is disposed in the other plug, and each of the plugs is respectively provided with at least one of the communication grooves.
  • the liquid inlet hole includes a circular hole segment and is located inside the circular hole segment and is used for the first stage
  • the liquid inlet end of the liquid flow channel abuts the hole section, and the two ends of the abutting hole section respectively transition through the inclined surface to the circular hole section.
  • the liquid outlet hole comprises a circular hole section and a hole section located inside the circular hole section and used for abutting with the liquid discharge end of the final stage flow passage, and the two ends of the butt hole section are respectively transitioned through the slope to Round hole section.
  • cross-sectional area of the inner hole segment is larger than the cross-sectional area of the liquid flow channel.
  • the cross-sectional area of the communication groove is larger than the cross-sectional area of the liquid flow channel, and the cross section of the communication groove is flat, and the two sides of the wide side and/or the long side of the communication groove and the communication groove
  • the bottom surface is at right angles or rounded corners, and the radius of the fillet is less than the preset value.
  • the communication groove has a cross section of a waist shape or any other shape that is easy to connect the two holes.
  • the one or more heat sources include one or more of an LED light source and a driving power source, and the heat source is connected to the body.
  • the wall surface of the liquid flow channel is distributed with a plurality of heat-conducting fins, and the heat-conducting fins are respectively disposed along the liquid flow direction, and the roots of the heat-conducting fins are integrally formed with the heat sink, and the tail portions of the heat-conducting fins are respectively There is a gap between the wall surface of the liquid flow path opposite thereto or the opposite heat transfer fins.
  • the upper wall surface or the lower wall surface of the liquid flow channel is spaced apart from the plurality of heat transfer fins.
  • each of the heat transfer fins gradually increases from the tail portion toward the root portion.
  • the present invention has the following beneficial effects:
  • the liquid inlet/outlet hole comprises a circular hole segment and an inner hole segment located in the circular hole segment, and both ends of the inner hole segment respectively transition through the inclined surface to the circular hole segment, the aspect of the invention is in a circle
  • the shape of the hole section facilitates the external pipeline, and on the other hand, the slope transition is adopted to make the flow of the liquid inlet hole and the liquid outlet hole uniform and avoid stress concentration.
  • the cross section of the communication groove is flat, preferably waist-shaped, the two sides of the wide side and/or the long side of the communication groove are at right angles or rounded corners with the bottom surface of the communication groove, and the radius of the round corner is It may be small, thus reducing the surface quality requirements for the machined wall and avoiding excessive stress and reducing flow resistance.
  • the heat flow fins of the heat sink of the present invention are provided with a plurality of heat transfer fins, the heat transfer fins are respectively disposed in the liquid flow direction with the heat transfer fins, and the roots of the heat transfer fins are integrally formed with the heat sink, respectively.
  • Contact surface thereby greatly improving the heat exchange efficiency of the two, and improving the present invention for LED lamps, Don't be the heat dissipation efficiency of high-power LED lights.
  • FIG. 1 is an exploded perspective view of a liquid cooling heat dissipation module according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural view of a blocking block according to Embodiment 1 of the present invention.
  • Figure 3 is a plan view of the blockage block according to Embodiment 1 of the present invention.
  • FIG. 4 is a perspective structural view of a liquid cooling heat dissipation module according to Embodiment 1 of the present invention.
  • FIG. 5 is a top plan view of a liquid cooling heat dissipation module according to Embodiment 1 of the present invention.
  • Figure 6 is a cross-sectional view taken along line C-C of Embodiment 1 of the present invention.
  • Figure 7 is a schematic view showing the liquid flow of Embodiment 1 of the present invention.
  • Figure 8 is a cross-sectional view taken along line A-A of Embodiment 1 of the present invention.
  • Figure 9 is a cross-sectional view showing a second embodiment of the present invention for use in an LED lamp
  • Figure 10 is a perspective view of Embodiment 2 of the present invention for use in an LED lamp
  • FIG. 11 is a schematic view of a single luminaire of Embodiment 3 used in the LED lamp networking of the present invention.
  • FIG. 12 is a schematic diagram of the networking of the third embodiment of the present invention for use in an LED lamp networking.
  • the heat-dissipating module of the easy-to-form liquid-cooled LED lamp of the present invention comprises a cooling body, two plugs 2, 3 and a heat source, and the cooling body is specifically a cooling plate.
  • the cooling plate 1 is integrally formed with metal or high thermal conductivity non-metal, and has a plurality of liquid flow passages for achieving stepwise communication, and the liquid inlet ends of the respective liquid flow channels are respectively connected to the liquid discharge ends of the adjacent flow channels.
  • the two plugs 2, 3 are respectively sealed and connected to the cooling plate 1 and fitted at both ends of the liquid flow channel; the liquid inlet end of the first-stage liquid flow channel is disposed on the plug at the end thereof The liquid inlet holes are connected, and the liquid outlet end of the final stage liquid flow channel is connected with the liquid outlet hole provided on the plug at the end of the first stage, and the liquid inlet ends of the liquid flow channels of the respective stages other than the first stage liquid flow channel are respectively connected to the upper liquid inlet end.
  • the liquid outlet end of the first-stage liquid flow channel is connected through a communication groove provided on the plug at the end of the first flow channel.
  • the number of the liquid flow channels is an odd number greater than 1, specifically three (the number of the liquid flow channels is not limited to three), and the first stage liquid flow channel 11 and the second level are The liquid flow channel 12 and the final liquid flow channel 13.
  • the liquid inlet hole 21 is disposed in one of the plugs 2, and the liquid outlet hole 31 is disposed in the other plug 3.
  • the plug 2 is provided with one of the communication grooves 22, and the plug 3 is provided with one of the communication grooves. 32.
  • the liquid inlet hole 21 and the liquid outlet hole 31 respectively include a circular hole segment a and a hole segment b located inside the circular hole segment a, and the two ends of the inner hole segment b are respectively located at the longitudinal direction
  • the transition to the circular hole segment a is made by the slope c.
  • the outer end of the inner hole segment b has a cross section of a waist shape.
  • the design of the circular hole segment a is such that the liquid inlet hole 21 and the liquid outlet hole 31 are convenient for the external pipe.
  • the design of the slope transition is such that the flow rate of the liquid inlet hole 21 and the liquid outlet hole 31 is uniform to avoid stress concentration.
  • the cross-sectional area of the communication grooves 22, 32 is larger than the cross-sectional area of the liquid flow path, and the cross-section of the communication grooves 22, 32 is flat, specifically waist-shaped.
  • the two sides of the connecting groove 22, 32 and the two sides of the connecting groove 22, 32 are respectively rounded and the bottom surface of the connecting groove 22, 32 is rounded, and the radius of the rounded corner is smaller than a preset value, and is as small as possible, so that the connecting groove 22, 32
  • the inner bottom portion forms a pressure release zone d on both sides of the longitudinal direction, as shown in Fig. 3, thereby avoiding excessive stress and reducing flow resistance.
  • the cross section is perpendicular to the length direction of the heat sink.
  • the two plugs 2 and 3 are respectively sealed with the cooling plate 1 by using the sealing ring 5, and specifically, the two plugs 2 and 3 respectively nest the sealing ring 5 on the end face thereof which is butted against the cooling plate 1.
  • the slots of the communication slots 22, 32, the liquid outlet of the liquid inlet 21, and the liquid inlet of the liquid outlet 31 are respectively located within the range of the corresponding sealing ring.
  • the liquid direction of the present invention is as shown in Fig. 7: the cooling liquid (which may be cold water) flows in from the liquid inlet hole 21 of one of the plugs 2, enters the first stage liquid flow path 11, and passes through the other plug 3
  • the upper communication groove 32 is turned into the second-stage liquid flow path 12, and then turned into the final-stage liquid flow path 13 through the communication groove 22 on one of the plugs 2, and finally passes through the liquid-out hole on the other plug 3. 31 outflow.
  • heat is exchanged with the heat transferred from the cooling plate 1, and heat is removed by the discharge.
  • an easy-to-form liquid cold LED lamp heat dissipation module of the present invention in which the cooling plate 1 is in turn, is a first-stage liquid flow channel 11, a second-stage liquid flow channel 12, and a final liquid.
  • Flow channel 13 is a first-stage liquid flow channel 11, a second-stage liquid flow channel 12, and a final liquid.
  • the wall surface of the liquid flow channel 11 is distributed with a plurality of heat transfer fins 113 spaced apart in a direction perpendicular to the flow of the liquid (ie, the coolant), and each of the heat transfer fins 113 is elongated and in the liquid flow direction (ie, the coolant).
  • the flow direction is provided, and the root portion 115 of each of the heat transfer fins 113 is integrally formed with the cooling plate 1, and a gap is formed between the tail portion 114 of each of the heat transfer fins 113 and the wall surface of the liquid flow path 11 opposed thereto or the opposite heat transfer fins.
  • the tail portions 114 of the respective heat transfer fins 113 are respectively free ends, and the plurality of heat transfer fins 113 do not divide the liquid flow path 11 into a plurality of independent small passages, and the liquid flow path 11 is maintained as a complete passage.
  • the cooling plate 1 forms the liquid flow channel 11 and the heat transfer fin 113 by an aluminum extrusion process, and the cooling plate 1 is in the heat transfer fin
  • the outer surface of the portion where the root portion 115 of the sheet 113 is located is a heat source contact surface and is a flat surface.
  • the cross section of the liquid flow path 11 is an elongated shape, specifically a rectangular shape (which may also be a square or a waist shape, etc.), and the liquid flow path 11 runs along the longitudinal direction of the cooling plate 1.
  • the upper wall surface 111 of the liquid flow path 11 is spaced apart from the plurality of heat transfer fins 113.
  • the upper surface 14 of the cooling plate 1 is a heat source contact surface.
  • the heat source is specifically an LED light source.
  • each of the heat transfer fins 113 are respectively free ends, and have a gap with the lower wall surface 112 of the liquid flow channel 11 to prevent the heat transfer fins 113 from dividing the liquid flow channel 11 into a plurality of independent small passages to increase the flow of the coolant. resistance.
  • each of the heat transfer fins 113 gradually increases from the tail portion 114 toward the root portion 115, so that the cross section of each of the heat transfer fins 113 is tapered, and the fins are too thin and the thermal resistance is too large.
  • the fin thickness is the contradiction of the increase in material cost, that is, the heat transfer fin 113 has a tapered cross section, which makes the thermal resistance moderate and also reduces the material cost.
  • an LED lamp with an easy-to-form liquid cooling module of the present invention includes the cooling plate 1, the two plugs 2, 3, and the heat source is an LED.
  • the lamp 6 is arranged on the upper surface 14 of the cooling plate 1.
  • the invention relates to a heat module with an easy-to-form liquid cold LED lamp used in an LED lamp, which can dissipate heat of one or more heat sources in the LED lamp, and can also be applied to other products, and corresponding heat sources for other products. Cool down.
  • the one or more heat sources may include one or more of an LED light source and a driving power source, but are not limited to the two.
  • the number of the flow channels is an even number, and the inlet and outlet holes are provided in the same plug.
  • the number of the flow channels is one, and the liquid inlet end of the liquid flow channel is in communication with the liquid inlet hole provided in one of the plugs, and the liquid outlet end of the liquid flow channel is connected to the other one.
  • the liquid outlet holes provided on the head are connected.
  • the LED lamp assembly with the easy-to-form liquid cooling module of the present invention includes a plurality of LED lamps 7 described in Embodiment 2, and passes through the pipeline 8.
  • the water inlet end 71 and the water outlet end 72 of the LED lamp 7 are connected in series to form a branch, or a plurality of branches are connected in parallel to form a mesh.
  • the water inlet 81 and the water outlet 82 of the duct 8 are all disposed outdoors.
  • the LED lamp assembly of the embodiment can bring the heat generated by the LED lamp 7 to the outside through the liquid in the pipe, and has good heat dissipation effect.
  • the invention discloses an easy-to-form liquid cooling module and an LED lamp, wherein the cooling body is formed with a plurality of liquid flow channels.
  • the invention has simple process, low cost and easy realization of mass production.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Led Device Packages (AREA)

Abstract

一种易成型液冷LED灯具散热模组，包括冷却本体（1）、两堵头（2，3），冷却本体（1）成型有液流通道（11，12，13）；液流通道（11，12，13）的数量为若干个，各液流通道（11，12，13）的进液端分别与相邻级的液流通道的出液端位于冷却本体（1）的同一端；首级液流通道（11）的进液端与其所在端的堵头（2）上设置的进液孔（21）相连通，末级液流通道（13）的出液端与其所在端的堵头（3）上设置的出液孔（31）相连通，首级液流通道（11）之外的各级液流通道的进液端分别与上一级液流通道的出液端通过其所在端的堵头（2，3）上设置的连通槽（22，32）实现连通；或者，液流通道的数量为一个，液流通道的进液端与其中一堵头（2）上设置的进液孔（21）相连通，出液端与另一堵头（3）上设置的出液孔（31）相连通。实现了工艺简单、成本低，易于实现大批量生产。

Description

一种易成型液冷LED灯具散热模组 技术领域
本发明涉及一种易成型液冷LED灯具散热模组。
背景技术
目前，现有技术的液冷散热装置，一般采用以下两种结构：1)两板式上下结构，上、下板分别采用机加工雕刻水路，两板合起来后加上密封圈防水；2)采用热管或者铜管作为液体输送载体，回路的地方采用焊接工艺。以上两种制作工艺成本高，且加工速度慢，不适合大批量生产。而在LED灯具领域内，水冷应用很少。
发明内容
本发明提供了一种易成型液冷LED灯具散热模组，其克服了现有技术的液冷散热装置所存在的不足之处。
本发明解决其技术问题所采用的技术方案是：一种易成型液冷LED灯具散热模组，包括冷却本体、两堵头，该冷却本体成型有液流通道，两堵头分别配合在液流通道的两端处，热源(即LED、驱动电源等发热元器件)与本体相连；所述液流通道的数量为若干个，用于实现逐级连通，且各液流通道的进液端分别与相邻级的液流通道的出液端位于冷却板的同一端；首级液流通道的进液端与其所在端的堵头上设置的进液孔相连通，末级液流通道的出液端与其所在端的堵头上设置的出液孔相连通，首级液流通道之外的各级液流通道的进液端分别与上一级液流通道的出液端通过其所在端的堵头上设置的连通槽实现连通；
进一步的，所述冷却本体为冷却板，其通过金属或高热导率非金属一体成型加工工艺形成所述液流通道。
进一步的，所述冷却本体为冷却板，其通过铝挤成形所述液流通道。
进一步的，所述液流通道的数量为偶数个，所述进液孔和出液孔设在同一个堵头；或者，所述液流通道的数量为大于1的奇数个，所述进液孔设在其中一个堵头，所述出液孔设在另一个堵头，各堵头分别设有至少一个所述连通槽。
进一步的，所述进液孔包括圆形孔段和位于该圆形孔段内侧并用于与首级 液流通道的进液端对接孔段，且对接孔段的两端分别通过斜面过渡至圆形孔段。
进一步的，所述出液孔包括圆形孔段和位于该圆形孔段内侧并用于与末级液流通道的出液端对接的孔段，且对接孔段的两端分别通过斜面过渡至圆形孔段。
进一步的，所述内接孔段的横截面面积大于液流通道的横截面面积。
进一步的，所述连通槽的横截面面积大于液流通道的横截面面积，且连通槽的横截面为扁形，该连通槽的宽边和/或长边所在的两侧壁与该连通槽的底面呈直角或圆角过渡，且圆角的半径小于预设值。
进一步的，所述连通槽的横截面为腰形或其它易于连接两孔的任何形状。
进一步的，所述一种或多种热源包括LED光源、驱动电源中的一种或几种热源，所述热源与本体相连。
进一步的，所述液流通道的壁面间隔分布有若干导热翅片，各导热翅片分别沿液流方向设置，且各导热翅片的根部与散热器一体成型，各导热翅片的尾部分别和与其相对的液流通道的壁面或相对的导热翅片之间具有间隙。
进一步的，所述液流通道的上壁面或下壁面间隔分布有所述若干导热翅片。
进一步的，所述各导热翅片的宽度从尾部向根部的方向逐渐增大。
相较于现有技术，本发明具有以下有益效果：
1、通过在冷却本体上成型所述液流通道，并配合设置所述两个堵头，形成单个或多个液流回路，工艺简单、成本低，易于实现大批量生产。
2、由于进液孔/出液孔包括圆形孔段和位于该圆形孔段内侧孔段，且内侧孔段的两端分别通过斜面过渡至圆形孔段，使得本发明一方面在圆形孔段便于外接管路，另一方面采用斜面过渡，使进液孔、出液孔流量均匀，避免应力集中。
3、由于连通槽的横截面设为扁形，优选腰形，该连通槽的宽边和/长边所在的两侧壁与该连通槽的底面呈直角或圆角过渡，且圆角的半径尽可能小，因而可以降低对加工壁面的表面质量要求，且避免应力过大，减小流动阻力。
4、由于本发明的散热器的液流通道中设有若干导热翅片，各导热翅片分别与各导热翅片分别沿液流方向设置，且各导热翅片的根部与散热器一体成型，各导热翅片的尾部分别和与其相对的液流通道的壁面或相对的导热翅片之间具有间隙，使得本发明不仅不会阻隔冷却液在液流通道中流动，还大大增加了冷却液与散热器的接触面，从而大大提高二者的热交换效率，提高本发明对LED灯，特 别是大功率LED灯的散热效率。
以下结合附图及实施例对本发明作进一步详细说明；但本发明的一种易成型液冷散热模组及LED灯不局限于实施例。
附图说明
图1是本发明实施例1的液冷散热模组的分解示意图；
图2是本发明实施例1的堵块的结构示意图；
图3是本发明实施例1的堵块的俯视图；
图4是本发明实施例1的液冷散热模组的立体构造示意图；
图5是本发明实施例1的液冷散热模组的俯视图；
图6是本发明实施例1的C-C剖视图；
图7是本发明实施例1的液体走向示意图；
图8是本发明实施例1的A-A剖视图；
图9是本发明用在LED灯的实施例2剖视图；
图10是本发明用在LED灯的实施例2立体示意图；
图11是本发明用在LED灯组网的实施例3单体灯具示意图；
图12是本发明用在LED灯组网的实施例3组网示意图。
具体实施方式
实施例1，请参见图1-图7所示，本发明的一种易成型液冷LED灯具散热模组，包括冷却本体、两堵头2、3及热源，所述冷却本体具体为冷却板1，该冷却板1通过金属或高热导率非金属一体成型有用于实现逐级连通的若干液流通道，且各液流通道的进液端分别与相邻级的液流通道的出液端位于冷却板1的同一端；两堵头2、3分别密封连接在冷却板1上，并配合在液流通道的两端处；首级液流通道的进液端与其所在端的堵头上设置的进液孔相连通，末级液流通道的出液端与其所在端的堵头上设置的出液孔相连通，首级液流通道之外的各级液流通道的进液端分别与上一级液流通道的出液端通过其所在端的堵头上设置的连通槽实现连通。
本实施例中，所述液流通道的数量为大于1的奇数个，具体为三个(所述液流通道的个数不局限于三个)，依次为首级液流通道11、第二级液流通道12、末级液流通道13。所述进液孔21设在其中一个堵头2，所述出液孔31设在另一个堵头3，堵头2设有一个所述连通槽22，堵头3设有一个所述连通槽32。
本实施例中，所述进液孔21和出液孔31分别包括圆形孔段a和位于该圆形孔段a内侧的孔段b，且内侧孔段b的长度方向所在的两端分别通过斜面c过渡至圆形孔段a。具体，所述内侧孔段b外端的横截面为腰形。所述圆形孔段a的设计，使进液孔21和出液孔31便于外接管路，所述斜面过渡的设计方式使进液孔21、出液孔31流量均匀，避免应力集中。
本实施例中，所述连通槽22、32的横截面面积大于液流通道的横截面面积，且连通槽22、32的横截面为扁形，具体为腰形。该连通槽22、32的宽边和长边所在的两侧壁分别与该连通槽22、32的底面呈圆角过渡，且圆角的半径小于预设值，并尽可能小，使连通槽22、32内侧底部在长度方向所在的两侧形成压力释放区d，如图3所示，从而避免应力过大，减小流动阻力。所述横截面与散热器的长度方向垂直。
本实施例中，所述两堵头2、3分别采用密封圈5与冷却板1实现密封配合，具体，两堵头2、3分别在其与冷却板1对接的端面上嵌套密封圈5，且所述连通槽22、32的槽口、进液孔21的出液口、出液孔31的进液口分别位于相应的密封圈圈起的范围内。
本发明的液体走向如图7所示：冷却液(该冷却液可以是冷水)从其中一个堵头2的进液孔21流入，进入首级液流通道11中，并通过另一个堵头3上的连通槽32拐入第二级液流通道12中，再通过其中一个堵头2上的连通槽22拐入末级液流通道13中，最后通过另一个堵头3上的出液孔31流出。冷却液在冷却板1中流动的过程中，与冷却板1传递过来的热量完成热交换，并通过排出带走热量。
请参见图1、图8所示，本发明的一种易成型液冷LED灯具散热模组，其冷却板1中，依次为首级液流通道11、第二级液流通道12、末级液流通道13。所述液流通道11的壁面沿垂直于液体(即冷却液)流动的方向间隔分布有若干导热翅片113，各导热翅片113分别为长条形，并沿液流方向(即冷却液的流动方向)设置，且各导热翅片113的根部115与冷却板1一体成型，各导热翅片113的尾部114和与其相对的液流通道11的壁面或相对的导热翅片之间具有间隙，亦即，各导热翅片113的尾部114分别为自由端，若干导热翅片113没有将液流通道11分隔成若干个独立的小通道，液流通道11保持为一个完整的通道。所述冷却板1通过铝挤工艺形成所述液流通道11和导热翅片113，且冷却板1在导热翅 片113的根部115所在部位的外表面为热源接触面，并为平面。本实施例中，所述液流通道11的横截面为长条形，具体为长方形(也可以是正方形或腰形等)，且液流通道11的走向顺着冷却板1的长度方向。所液流通道11的上壁面111间隔分布有所述若干导热翅片113，相应的，所述冷却板1的上表面14为热源接触面。所述热源具体为LED光源。各导热翅片113的尾部114分别为自由端，与液流通道11的下壁面112之间具有间隙，避免导热翅片113将液流通道11分隔成若干独立小通道而增大冷却液的流动阻力。
本实施例中，所述各导热翅片113的宽度从尾部114向根部115的方向逐渐增大，使各导热翅片113的横截面呈锥状，从中调和了翅片太薄热阻过大，翅片厚则材料成本增加的矛盾，即，导热翅片113的横截面呈锥状，使热阻适中，也降低了材料成本。
实施例2，请参见图9、图10所示，本发明的一种具有易成型液冷散热模组LED灯具，包括实施1中的包括冷却板1、两堵头2、3，热源为LED灯6，布置在冷却板1的上表面14。
本发明的一种具有易成型液冷散LED灯具热模组应用于LED灯中，对LED灯中的一种或多种热源进行散热，也可以应用于其它产品中，对其它产品的相应热源进行散热。
所述一种或多种热源可以包括LED光源、驱动电源中的一种或几种，但不局限于这两种。
在其它实施例中，所述液流通道的数量为偶数个，所述进液孔和出液孔设在同一个堵头。
在其它实施例中，所述液流通道的数量为一个，该液流通道的进液端与其中一堵头上设置的进液孔相连通，该液流通道的出液端与另一堵头上设置的出液孔相连通。
实施例3，请参见图,11、图12所示，本发明的一种具有易成型液冷散热模组LED灯具组网，包括若干个实施例2中所述的LED灯具7，通过管道8将依次连接LED灯具7的进水端71、出水端72串联形成支路，或者多个支路再进行并联形成网状。管道8的进水口81、处水口82均设置在室外。本实施例的LED灯具组网可通过管道内的液体将LED灯具7产生的热量带到室外，具有良好的散热效果。
上述实施例仅用来进一步说明本发明的一种易成型液冷散热模组及LED灯，但本发明并不局限于实施例，凡是依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均落入本发明技术方案的保护范围内。
工业实用性
本发明一种易成型液冷散热模组及LED灯，其冷却本体成型有若干个液流通道。本发明工艺简单、成本低，易于实现大批量生产。

Claims (16)

  1. 一种易成型液冷LED灯具散热模组，其特征在于：包括冷却本体、两堵头及单个或若干热源，冷却本体成型有液流通道，两堵头分别配合在液流通道的两端处；所述液流通道的数量为若干个，用于实现逐级连通，且各液流通道的进液端分别与相邻级的液流通道的出液端位于冷却本体的同一端；首级液流通道的进液端与其所在端的堵头上设置的进液孔相连通，末级液流通道的出液端与其所在端的堵头上设置的出液孔相连通，首级液流通道之外的各级液流通道的进液端分别与上一级液流通道的出液端通过其所在端的堵头上设置的连通槽实现连通。
  2. 根据权利要求1所述的易成型液冷LED灯具散热模组，其特征在于：所述冷却本体为冷却板，其通过金属或高热导率非金属一体成型加工工艺形成所述液流通道。
  3. 根据权利要求1所述的易成型液冷LED灯具散热模组，其特征在于：所述冷却本体为冷却板，其通过铝挤成形所述液流通道。
  4. 根据权利要求1所述的易成型液冷LED灯具散热模组，其特征在于：所述液流通道的数量为偶数个，所述进液孔和出液孔设在同一个堵头；或者，所述液流通道的数量为大于1的奇数个，所述进液孔设在其中一个堵头，所述出液孔设在另一个堵头，各堵头分别设有至少一个所述连通槽。
  5. 根据权利要求1所述的易成型液冷LED灯具散热模组，其特征在于：所述进液孔包括圆形孔段和位于该圆形孔段内侧并用于与首级液流通道的进液端对接孔段，且对接孔段的两端分别通过斜面过渡至圆形孔段。
  6. 根据权利要求1所述的易成型液冷LED灯具散热模组，其特征在于：所述出液孔包括圆形孔段和位于该圆形孔段内侧并用于与末级液流通道的出液端对接的孔段，且对接孔段的两端分别通过斜面过渡至圆形孔段。
  7. 根据权利要求4或5所述的易成型液冷LED灯具散热模组，其特征在于：所述内接孔段的横截面面积大于液流通道的横截面面积。
  8. 根据权利要求1所述的易成型液冷LED灯具散热模组，其特征在于：所述连通槽的横截面面积大于液流通道的横截面面积，且连通槽的横截面为扁形，该连通槽的宽边和/或长边所在的两侧壁与该连通槽的底面呈直角或圆角过渡，且圆角的半径小于预设值。
  9. 根据权利要求7所述的易成型液冷LED灯具散热模组，其特征在于：所述连通槽的横截面为腰形或其它易于连接两孔的任何形状。
  10. 根据权利要求1所述的易成型液冷LED灯具散热模组，其特征在于：所述一种或多种热源包括LED光源、驱动电源中的一种或几种热源，所述热源与本体相连。
  11. 根据权利要求1所述的易成型液冷LED灯具散热模组，其特征在于：所述液流通道的壁面间隔分布有若干导热翅片，各导热翅片分别沿液流方向设置，且各导热翅片的根部与散热器一体成型，各导热翅片的尾部分别和与其相对的液流通道的壁面或相对的导热翅片之间具有间隙。
  12. 根据权利要求11所述的易成型液冷LED灯具散热模组，其特征在于：所述所液流通道的上壁面或下壁面间隔分布有所述若干导热翅片。
  13. 根据权利要求11所述的易成型液冷LED灯具散热模组，其特征在于：所述各导热翅片的宽度从尾部向根部的方向逐渐增大。
  14. 根据权利要求11所述的易成型液冷LED灯具散热模组，其特征在于：所述热源为LED灯，布置在冷却板的上表面。
  15. 根据权利要求10或11所述的易成型液冷LED灯具散热模组，其特征在于：若干个具有易成型液冷散热模组LED灯具、管道形成组网，通过管道依次连接LED灯具的进水端、出水端串联形成支路。
  16. 根据权利要求16所述的易成型液冷LED灯具散热模组，其特征在于：所述多个支路再进行并联形成网状，管道的进水口、处水口均设置在室外。
PCT/CN2017/107947 2017-01-18 2017-10-27 一种易成型液冷led灯具散热模组 WO2018133481A1 (zh)

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