CN108443722B - Heat dissipation device and light emitting structure - Google Patents
Heat dissipation device and light emitting structure Download PDFInfo
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- CN108443722B CN108443722B CN201810199374.9A CN201810199374A CN108443722B CN 108443722 B CN108443722 B CN 108443722B CN 201810199374 A CN201810199374 A CN 201810199374A CN 108443722 B CN108443722 B CN 108443722B
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- heat dissipation
- auxiliary heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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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
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
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- 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]
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to a heat dissipation device and a light-emitting structure, wherein the heat dissipation device comprises a base, a reinforcing piece, a strut, a first supporting piece, a second supporting piece, a heat dissipation piece, a first auxiliary heat dissipation plate, a second auxiliary heat dissipation plate, a third auxiliary heat dissipation plate and a mounting plate; the pillar is fixed on the base, the reinforcing member is arranged around the pillar and is respectively connected with the pillar and the base; the first supporting piece is arranged on the strut through a connecting piece; the second supporting piece is arranged on the first supporting piece through a connecting piece; the heat dissipation piece is arranged on the second support piece through the connecting piece; the first auxiliary heat dissipation plate is arranged on the heat dissipation member; the second auxiliary heat dissipation plate is arranged on the first auxiliary heat dissipation plate through a connecting piece; the third auxiliary heat dissipation plate is arranged on the second auxiliary heat dissipation plate through a connecting piece; the mounting panel passes through the connecting piece to be installed in the third auxiliary heat dissipation board, and a side that the mounting panel kept away from the sixth connecting piece is used for installing the heat source. The heat dissipation device has the advantages of less materials and good heat dissipation effect.
Description
Technical Field
The present invention relates to the field of heat dissipation, and more particularly, to a heat dissipation device and a light emitting structure.
Background
The light emitting diode, abbreviated As LED, is made of a compound containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), and the like. When electrons and holes are recombined, visible light is radiated, so that the light-emitting diode can be manufactured. In circuits and instruments as indicator lights or to form text or numerical displays. Gallium arsenide diodes emit red light, gallium phosphide diodes emit green light, silicon carbide diodes emit yellow light, and gallium nitride diodes emit blue light. Organic light emitting diodes OLED and inorganic light emitting diodes LED are classified by their chemical properties. The rapid development of LEDs, which is regarded as important, is not separated from the advantages of LEDs. These advantages are summarized as follows: high brightness, low working voltage, low power consumption, large size, long service life, impact resistance and stable performance. The development prospect of the LED is very wide, and the LED is developing towards the directions of higher brightness, higher weather resistance, higher luminous density, higher luminous uniformity, reliability and full colorization. The LED display screen is widely applied to advertising in different outdoor places such as stadiums, commercial applications, banks, securities, post, wharfs, markets, stations, post, telecommunication, offices, monitors, schools, restaurants, hotels, entertainment and the like.
However, as the usage of LEDs increases, the heat dissipation problem is more serious, and the heat dissipation problem of LEDs is more and more important now because the light attenuation or the lifetime of LEDs is directly related to the junction temperature, the junction temperature is high when the heat dissipation is poor, the lifetime is short, and the lifetime is prolonged by 2 times when the temperature is reduced by 10 ℃ according to the arrhenius rule. Generally, if the junction temperature can be controlled at 65 ℃, the lifetime of the LED product with light decay of 70% can be as high as 10 ten thousand hours, but actually, the usage environment of the LED often cannot provide good heat dissipation conditions, so that the lifetime of the LED is often less than 2 ten thousand hours, and the lifetime of the LED of some integrated high-power LED lighting devices is even less than 5 thousand hours.
In the traditional design, the efficiency of heat conduction is considered to be higher than the efficiency of heat convection, so often be with mounting panel and the design of metal radiating piece laminating to extend at the radiating piece and design a large amount of fin, have the too big overweight problem of wasting the metal material of radiating piece on the one hand like this, on the other hand because the fin is consequently all there is certain potential safety hazard in processing, transportation, installation and use because the fin often is thinner sheetmetal. Therefore, it is necessary to improve the heat dissipation performance of LED products.
Disclosure of Invention
Accordingly, a heat dissipation device and a light emitting structure are needed.
A heat dissipation device comprises a base, a reinforcing piece, a strut, a first supporting piece, a second supporting piece, a heat dissipation piece, a first auxiliary heat dissipation plate, a second auxiliary heat dissipation plate, a third auxiliary heat dissipation plate and a mounting plate; the pillar is fixed on the base, the reinforcing member is arranged around the pillar, and the reinforcing member is respectively connected with the pillar and the base; the first support is mounted to the strut by at least three first connectors; the second support member is mounted to the first support member by at least three second connectors; the heat dissipation piece is mounted on the second support piece through two third connecting pieces; the first auxiliary heat dissipation plate is arranged on one side surface, far away from the third connecting piece, of the heat dissipation piece; the second auxiliary heat dissipation plate is mounted on the first auxiliary heat dissipation plate through at least three fourth connecting pieces; the third auxiliary heat dissipation plate is mounted on the second auxiliary heat dissipation plate through at least three fifth connecting pieces; the mounting panel through at least three sixth connecting piece install in the third auxiliary heat dissipation board, the mounting panel is kept away from a side of sixth connecting piece is used for installing the heat source.
By adopting the heat dissipation device, two auxiliary heat dissipation plates which are mutually spaced through three connecting pieces are designed between the mounting plate and the heat dissipation piece, so that the heat of the mounting plate can be effectively and rapidly dissipated through a multi-stage heat dissipation design; in this way, the heat of the heat source is firstly transferred to the mounting plate in a heat conduction mode, then part of the heat is dissipated to the air environment in a heat convection mode, and part of the heat is transferred to the third auxiliary heat dissipation plate in a heat conduction mode through each sixth connecting piece; part of heat of the third auxiliary heat dissipation plate is dissipated to the air environment in a heat convection mode, and part of heat is transferred to the second auxiliary heat dissipation plate in a heat conduction mode through each fifth connecting piece; part of heat of the second auxiliary heat dissipation plate is dissipated to the air environment in a heat convection mode, and part of heat is transferred to the first auxiliary heat dissipation plate in a heat conduction mode through the fourth connecting pieces; part of heat of the first auxiliary heat dissipation plate is dissipated to the air environment in a heat convection mode, and part of heat is transferred to the heat dissipation part in a heat conduction mode, so that a multi-stage heat dissipation design is realized; furthermore, based on the multi-stage heat dissipation design, the physical characteristics of heat conduction and heat convection can be skillfully utilized, a hot area which is difficult to dissipate due to over concentration of heat is avoided, the mounting plate, the third auxiliary heat dissipation plate, the second auxiliary heat dissipation plate and the first auxiliary heat dissipation plate form an open environment which is convenient for air convection due to the fourth connecting piece, the fifth connecting piece and the sixth connecting piece, when the heat is concentrated, such as when the heat is displayed on a large screen, the heat conduction and the heat convection can be balanced to a certain extent, on one hand, the multi-stage heat dissipation, and the heat dissipation device is beneficial to avoiding using large-scale heat dissipation aluminum alloy, so that the heat dissipation device has the advantages of less materials and better heat dissipation effect.
In one embodiment, the first support member and the second support member are respectively provided with a plurality of first through holes.
In one embodiment, the first connecting piece and the second connecting piece are arranged at different positions.
in one embodiment, the fourth connecting member and the fifth connecting member are arranged at different positions.
In one embodiment, the third connecting member comprises a telescopic structure and a control motor thereof which are nested with each other.
in one embodiment, the heat transfer coefficient of the first auxiliary heat dissipation plate is larger than the heat transfer coefficient of the heat dissipation member.
In one embodiment, the mounting plate is provided with a plurality of second through holes.
A light-emitting structure comprises the heat dissipation structure and a light source fixed on one side face, away from the sixth connecting piece, of the mounting plate of the heat dissipation device.
In one embodiment, the light emitting structure is an LED display screen, and the light source is an array of LED lamps.
in one embodiment, the light emitting structure is a lighting fixture.
Drawings
fig. 1 is a schematic view of a heat dissipation device according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a light emitting structure according to an embodiment of the invention.
FIG. 3 is a schematic view of a light emitting surface of the embodiment shown in FIG. 2.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
one embodiment of the invention is a heat dissipation device, which comprises a base, a reinforcing member, a pillar, a first supporting member, a second supporting member, a heat dissipation member, a first auxiliary heat dissipation plate, a second auxiliary heat dissipation plate, a third auxiliary heat dissipation plate and a mounting plate; the pillar is fixed on the base, the reinforcing member is arranged around the pillar, and the reinforcing member is respectively connected with the pillar and the base; the first support is mounted to the strut by at least three first connectors; the second support member is mounted to the first support member by at least three second connectors; the heat dissipation piece is mounted on the second support piece through two third connecting pieces; the first auxiliary heat dissipation plate is arranged on one side surface, far away from the third connecting piece, of the heat dissipation piece; the second auxiliary heat dissipation plate is mounted on the first auxiliary heat dissipation plate through at least three fourth connecting pieces; the third auxiliary heat dissipation plate is mounted on the second auxiliary heat dissipation plate through at least three fifth connecting pieces; the mounting panel through at least three sixth connecting piece install in the third auxiliary heat dissipation board, the mounting panel is kept away from a side of sixth connecting piece is used for installing the heat source. In the traditional design, the efficiency of heat conduction is higher than that of heat convection, so that a mounting plate is often attached to a metal heat dissipation piece, and a large number of heat dissipation pieces are designed on the extension of the heat dissipation piece, so that on one hand, the problem that the heat dissipation piece is too large and the metal material is wasted exists, and on the other hand, certain potential safety hazards exist in processing, transportation, installation and use because the heat dissipation pieces are often thin metal sheets; by adopting the heat dissipation device, two auxiliary heat dissipation plates which are mutually spaced through three connecting pieces are designed between the mounting plate and the heat dissipation piece, so that the heat of the mounting plate can be effectively and rapidly dissipated through a multi-stage heat dissipation design; in this way, the heat of the heat source is firstly transferred to the mounting plate in a heat conduction mode, then part of the heat of the mounting plate is dissipated to the air environment in a heat convection mode, and part of the heat is transferred to the third auxiliary heat dissipation plate in a heat conduction mode through the sixth connecting pieces; part of heat of the third auxiliary heat dissipation plate is dissipated to the air environment in a heat convection mode, and part of heat is transferred to the second auxiliary heat dissipation plate in a heat conduction mode through each fifth connecting piece; part of heat of the second auxiliary heat dissipation plate is dissipated to the air environment in a heat convection mode, and part of heat is transferred to the first auxiliary heat dissipation plate in a heat conduction mode through the fourth connecting pieces; part of heat of the first auxiliary heat dissipation plate is dissipated to the air environment in a heat convection mode, and part of heat is transferred to the heat dissipation part in a heat conduction mode, so that a multi-stage heat dissipation design is realized; furthermore, based on the multi-stage heat dissipation design, the physical characteristics of heat conduction and heat convection can be skillfully utilized, a hot area which is difficult to dissipate due to over concentration of heat is avoided, the mounting plate, the third auxiliary heat dissipation plate, the second auxiliary heat dissipation plate and the first auxiliary heat dissipation plate form an open environment which is convenient for air convection due to the fourth connecting piece, the fifth connecting piece and the sixth connecting piece, when the heat is concentrated, such as when the heat is displayed on a large screen, the heat conduction and the heat convection can be balanced to a certain extent, on one hand, the multi-stage heat dissipation, and the heat dissipation device is beneficial to avoiding using large-scale heat dissipation aluminum alloy, so that the heat dissipation device has the advantages of less materials and better heat dissipation effect.
for example, the heat dissipation device includes a plurality of connecting members, that is, the plurality of connecting members include at least three first connecting members, at least three second connecting members, two third connecting members, at least three fourth connecting members, at least three fifth connecting members, and at least three sixth connecting members, that is, the connecting members include first connecting members, second connecting members, third connecting members, fourth connecting members, fifth connecting members, and sixth connecting members. It can be understood that the number of the first connecting elements, the second connecting elements, the fourth connecting elements, the fifth connecting elements and the sixth connecting elements may be designed according to actual requirements, for example, for a large heat source such as a large screen display, the number of the first connecting elements, the second connecting elements, the fourth connecting elements, the fifth connecting elements and the sixth connecting elements is slightly larger, and for a small heat source, the number of the first connecting elements, the second connecting elements, the fourth connecting elements, the fifth connecting elements and the sixth connecting elements is slightly smaller, which is not limited by the present invention and its embodiments.
Further, in one embodiment, the heat dissipation device includes at least one hundred sixth connectors, each of the sixth connector arrays is disposed between the mounting plate and the third auxiliary heat dissipation plate, and each of the sixth connector arrays is disposed on the mounting plate or the third auxiliary heat dissipation plate, and the mounting plate is mounted to the third auxiliary heat dissipation plate through each of the sixth connectors; for example, the heat sink includes one hundred sixth connectors arranged in ten rows and ten columns, and so on for the remaining embodiments. Further, in one embodiment, the heat dissipation device includes at least one hundred fifth connectors, each of the fifth connector arrays is disposed between the second auxiliary heat dissipation plate and the third auxiliary heat dissipation plate, and each of the fifth connector arrays is disposed on the second auxiliary heat dissipation plate or the third auxiliary heat dissipation plate, and the third auxiliary heat dissipation plate is mounted to the second auxiliary heat dissipation plate through each of the fifth connectors; for example, the heat sink includes one hundred fifth connectors arranged in ten rows and ten columns, and so on for the remaining embodiments. Further, in one embodiment, the heat dissipation device includes at least one hundred fourth connectors, each of the fourth connector arrays is disposed between the second auxiliary heat dissipation plate and the first auxiliary heat dissipation plate, and each of the fourth connector arrays is disposed on the second auxiliary heat dissipation plate or the first auxiliary heat dissipation plate, and the second auxiliary heat dissipation plate is mounted to the first auxiliary heat dissipation plate through each of the fourth connectors; for example, the heat sink includes one hundred fourth connectors arranged in ten rows and ten columns, and so on for the remaining embodiments. Therefore, the balance between the material and the heat dissipation efficiency between heat conduction and heat convection is favorably realized, and the balance between the material use and the stable structure can be considered on the premise of ensuring the heat dissipation effect. In one embodiment, the fourth connecting member and the fifth connecting member are arranged at different positions. And/or, in one embodiment, the sixth connecting piece and the fifth connecting piece are arranged at different positions. For example, the projections of the fourth connecting members, the fifth connecting members and the sixth connecting members on the mounting plate do not overlap with each other. This can accommodate the use of various configurations of the auxiliary heat sink. Further, in one embodiment, the fourth connecting member and the fifth connecting member are arranged in the same position. And/or, in one embodiment, the position of the sixth connecting piece is the same as that of the fifth connecting piece. For example, the projections of the fourth connecting members, the fifth connecting members and the sixth connecting members on the mounting plate are mutually coincident. This enables higher heat transfer efficiency to be achieved. In one embodiment, the first connecting piece and the second connecting piece are arranged at the same or different positions.
As shown in fig. 1, an embodiment of the present invention is a heat dissipation device, which includes a base 100, a reinforcing member 200, a pillar 300, a first support 400, a second support 500, a heat dissipation member 600, a first auxiliary heat dissipation plate 610, a second auxiliary heat dissipation plate 630, a third auxiliary heat dissipation plate 720, and a mounting plate 700. The pillar 300 is fixed on the base 100, the reinforcement member 200 is disposed around the pillar 300 and the reinforcement member 200 connects the pillar 300 and the base 100, respectively, the reinforcement member is used to reinforce the stability of the fixing relationship between the pillar and the base, so that the fixing relationship between the pillar and the base is more stable, and the design is particularly suitable for the heat dissipation device with longer connecting piece. The first support 400 is mounted to the pillar 300 by at least three first connectors 310; the second support 500 is mounted to the first support 400 by at least three second connectors 410; the heat sink 600 is mounted to the second support 500 through a second third connector 510; the first auxiliary heat dissipation plate 610 is disposed on a side surface of the heat dissipation member 600 away from the third connector 510; the second auxiliary heat dissipation plate 630 is mounted to the first auxiliary heat dissipation plate 610 through at least three fourth connectors 620; the third auxiliary heat dissipation plate 720 is mounted to the second auxiliary heat dissipation plate 630 by at least three fifth connectors 640; the mounting plate 700 is mounted to the third auxiliary heat dissipation plate 720 by at least three sixth connectors 710, and a side of the mounting plate 700 remote from the sixth connectors 710 is used to mount a heat source.
Further, in one embodiment, three auxiliary heat dissipation plates of the heat dissipation device, including the first auxiliary heat dissipation plate, the second auxiliary heat dissipation plate and the third auxiliary heat dissipation plate, have hollow structures, for example, the first auxiliary heat dissipation plate, the second auxiliary heat dissipation plate and the third auxiliary heat dissipation plate are all frame structures; the design is favorable for saving materials and reducing the weight of the heat dissipation device. As another example, as shown in fig. 1, the first auxiliary heat dissipation plate, the second auxiliary heat dissipation plate, and the third auxiliary heat dissipation plate are disposed at different sizes and positions.
In one embodiment, the first support member and the second support member are respectively provided with a plurality of first through holes. Further, in one embodiment, the two supporting members of the heat dissipating device, including the first supporting member and the second supporting member, have a hollow structure, for example, the first supporting member and the second supporting member are both frame structures; the design is favorable for saving materials and further reducing the weight of the heat dissipation device. Further, in one embodiment, the first through holes of the first supporting member and the first through holes of the second supporting member are arranged in a one-to-one correspondence manner, so as to further enhance the communication relationship between the front space and the rear space, thereby improving the air convection capacity and further improving the heat dissipation effect. Further, in one embodiment, each of the second connecting members of the second supporting members is integrally formed with the first supporting member, and at this time, each of the second connecting members of the second supporting members and the first supporting member together form an integral supporting structure. Further, in one embodiment, each first connecting piece is screwed to the pillar, or each first connecting piece and the pillar are integrally formed, at least three clamping grooves are formed in the first supporting piece, each clamping groove corresponds to each first connecting piece one by one, the first supporting piece is installed from top to bottom, and each first connecting piece is inserted into the corresponding clamping groove, so that the fixing and supporting functions are achieved; the specific card slot and the connecting piece can be realized by adopting the existing process technology, and are not described herein.
In one embodiment, the mounting plate is provided with a plurality of second through holes. Furthermore, the mounting plate is provided with a spiral groove at the periphery of the second through hole, and a spiral flange is preferably used in theory, but the process is relatively complex, and the process is very easy to implement by adopting the spiral groove; alternatively, a plurality of second through holes having spiral grooves are drilled in the mounting plate by a spiral drilling process. Further, the density of the second through holes of the mounting plate is 2-8/square centimeter, and/or, the mounting plate has the largest aperture or the largest screw diameter of the second through holes of 0.15-0.3 centimeter, and the screw pitch can be flexibly designed according to the process and the requirement, so that the contact area between the mounting plate and the air environment can be greatly increased and can reach 200-1300% or higher, and the heat dissipation effect of the heat dissipation device at the mounting plate is further improved.
for example, the first auxiliary heat dissipation plate is provided with a plurality of first through holes, the second auxiliary heat dissipation plate is provided with a plurality of second through holes, and/or the third auxiliary heat dissipation plate is provided with a plurality of third through holes; further, in one embodiment, the heat sink is provided with a plurality of base through holes, the first auxiliary heat dissipation plate is provided with a plurality of first through holes, the second auxiliary heat dissipation plate is provided with a plurality of second through holes, and/or the third auxiliary heat dissipation plate is provided with a plurality of third through holes, so that the heat dissipation device forms a ventilation area in space, and heat conduction is accelerated to dissipate in a thermal convection manner. Further, in one embodiment, the second auxiliary heat dissipation plate is provided with a plurality of second through holes, the third auxiliary heat dissipation plate is provided with a plurality of third through holes, and each second through hole and each third through hole are arranged in a one-to-one correspondence manner, so that a ventilation area is formed in space, and thus, part of heat of the mounting plate can pass through the third auxiliary heat dissipation plate, the space between the third auxiliary heat dissipation plate and the second auxiliary heat dissipation plate in a heat convection manner, and the heat dissipation effect of the heat convection can be improved to a certain extent. Further, in one embodiment, the heat sink is provided with a plurality of base through holes, the first auxiliary heat sink plate is provided with a plurality of first through holes, the second auxiliary heat sink plate is provided with a plurality of second through holes, and the third auxiliary heat sink plate is provided with a plurality of third through holes, wherein the base through holes, the first through holes, the second through holes and the third through holes are arranged in a one-to-one correspondence manner, that is, each base through hole corresponds to one first through hole, one second through hole and one third through hole respectively; for another example, each of the basic through holes, each of the first through holes, each of the second through holes and each of the third through holes are disposed in a one-to-one correspondence manner and have the same area, and it can also be understood that projections of each of the basic through holes, each of the first through holes, each of the second through holes and each of the third through holes on the mounting plate are disposed in a one-to-one correspondence manner in an overlapping manner. Therefore, the heat dissipation device is enabled to be communicated with the spaces on the two sides of the heat dissipation part, under the condition, on one hand, the contact surfaces of the air environment and the heat dissipation part and the auxiliary heat dissipation plates are improved, on the other hand, the air convection capacity is improved, and therefore the heat dissipation effect of mutual cooperation of heat conduction and heat convection is achieved. Further, in one embodiment, the heat dissipation device further includes a fan, and the fan is fixedly disposed on the second connecting member or the fan is fixedly disposed on the second supporting member, so as to draw air and accelerate air circulation from the heat dissipation member to the second supporting member, thereby better improving heat dissipation effect.
Further, in one embodiment, the third auxiliary heat dissipation plate is integrally formed with each of the sixth connection members; further, in one embodiment, the second auxiliary heat dissipation plate is integrally formed with each of the fifth connection members; further, in one embodiment, the first auxiliary heat dissipation plate is integrally formed with each of the fourth connection members; thus, on one hand, the heat conduction efficiency is improved, and on the other hand, the installation process is saved.
In one embodiment, the third connecting member comprises a telescopic structure and a control motor thereof which are nested with each other. Further, the control motor is fixed on the second support member. Therefore, the length of the heat dissipation device can be adjusted to a certain degree, so that the heat dissipation device and the light-emitting structure adopting the heat dissipation device have wider applicability and have a certain-degree space-changing light-emitting effect.
In one embodiment, the heat conduction coefficient (also referred to as thermal conductivity or thermal conductivity) of the first auxiliary heat dissipation plate is greater than the heat conduction coefficient of the heat dissipation member. Further, the heat conduction coefficient of the third auxiliary heat dissipation plate is larger than that of the second auxiliary heat dissipation plate. For example, the heat conduction coefficient of the third auxiliary heat dissipation plate, the heat conduction coefficient of the second auxiliary heat dissipation plate, the heat conduction coefficient of the first auxiliary heat dissipation plate and the heat conduction coefficient of the heat dissipation member form a descending series, so that a material with a higher heat conduction coefficient can be selected for a heat concentration area at a mounting plate where a heat source is mounted, and a material with a lower heat conduction coefficient can be selected as the heat dissipation member after multi-stage transmission and air environment heat dissipation. Further, the heat conduction coefficient of the sixth connecting piece, the heat conduction coefficient of the fifth connecting piece and the heat conduction coefficient of the fourth connecting piece form a descending array; further, the heat conduction coefficient of the sixth connecting element, the heat conduction coefficient of the third auxiliary heat dissipation plate, the heat conduction coefficient of the fifth connecting element, the heat conduction coefficient of the second auxiliary heat dissipation plate, the heat conduction coefficient of the fourth connecting element, the heat conduction coefficient of the first auxiliary heat dissipation plate and the heat conduction coefficient of the heat dissipation element form a descending series.
in one embodiment, the heat dissipation device further includes a rotating base fixed to the base, and the support is fixed to the rotating base and disposed on the base through the rotating base. In one embodiment, the rotating seat is provided with N care positions, and an included angle between every two adjacent care positions is 360/N degrees; furthermore, the care position is a clamping groove, a clamping position or a similar structure and is used for better limiting the rotating position of the strut and avoiding the phenomenon of disorderly rotation, no rotation position, excessive rotation and the like; the design of the transfer position is beneficial to controlling the position of the support. For example, N is a natural number greater than 1 and less than 11. In one embodiment, N is 2 or 4. For example, when N is 2, the rotating base is provided with 2 care positions, an included angle between two adjacent care positions is 180 degrees, and the rest of the embodiments are similar to the above. In one embodiment, the heat dissipation device further includes a driving motor connected to the rotating base, the base defines a cavity, the driving motor is disposed in the cavity, an output shaft of the driving motor is connected to a rotating shaft of the rotating base, and the driving motor is used for controlling and driving the rotating base to rotate. In one embodiment, the heat dissipation device further comprises a controller connected with the driving motor, and the controller is used for receiving a control signal and controlling the driving motor to drive the rotating base to rotate. In one embodiment, the controller is used for receiving a control signal and controlling the driving motor to drive the rotating base to rotate by a preset angle. For example, the predetermined angle is 180 degrees, or 90 degrees, or 60 degrees, etc. Thus, the support column can be rotated to adjust the position of the display structure when necessary, so that the display structure is suitable for various occasions needing to rotate the heat source surface, the display surface or the heat dissipation surface, such as a court or a stage. In one embodiment, the controller has a wireless control module. In one embodiment, the wireless control module is a bluetooth module or a WIFI module. In this way, the strut can be controlled to rotate in a wireless control mode, so that the position of the mounting plate of the heat dissipation device can be adjusted.
Further, in one embodiment, an auxiliary plate is further disposed between the second supporting member and the heat dissipation member, and the auxiliary plate is provided with at least two through slots. In one embodiment, the through slots are arranged in parallel with each other. In one embodiment, the auxiliary board is further provided with an auxiliary lighting source. In this way, a side auxiliary display can also be realized. Furthermore, a pair of auxiliary plates parallel to each other is arranged between the second supporting piece and the heat dissipation piece, and an auxiliary lighting source is arranged on the auxiliary plates. For example, the auxiliary lighting light source is an LED strip lamp or an LED flexible light bar, and the like, and for another example, the auxiliary lighting light source is an LED lamp arranged in a matrix. Thus, a side illumination or display effect can be obtained, and the display device is particularly suitable for being applied to a wide place such as a square.
Further, in one embodiment, at least one mounting seat is provided on the pillar, and a bracket lighting structure is mounted on each mounting seat, and the bracket lighting structure includes a mounting bracket and at least three lighting elements; the at least three illuminating elements comprise an end illuminating element and at least two intermediate illuminating elements; each of said illuminating members comprising an illuminating body comprising an end illuminating body and an intermediate illuminating body, wherein said end illuminating body has said end illuminating body and said intermediate illuminating body has said intermediate illuminating body; the end part illumination piece is also provided with an end part support body and an end part rotating body, one end of the end part support body is fixedly connected with the end part illumination body, and the other end of the end part support body is fixedly connected with the end part rotating body; the middle illuminating piece is also provided with a front supporting body, a rear supporting body, a front rotating body and a rear rotating body, one end of the front supporting body is fixedly connected with the middle illuminating body, the other end of the front supporting body is fixedly connected with the front rotating body, one end of the rear supporting body is fixedly connected with the middle illuminating body, and the other end of the rear supporting body is fixedly connected with the rear rotating body; the middle illuminating pieces are sequentially connected end to end, and the rear rotating body of the front middle illuminating piece is connected with the front rotating body of the rear middle illuminating piece in a rotating mode; the front rotating body of the middle illuminating piece at the head end is connected with the rotating shaft of the end rotating body of the end illuminating piece; the rear rotating body of the middle lighting piece at the tail end is connected with the rotating shaft of the basic rotating body of the mounting bracket. Thus, by rotating the end illuminating pieces or the middle illuminating pieces, flexible and changeable illuminating directions can be realized; the end illuminating piece or any middle illuminating piece can independently rotate, so that the illuminating effect of any position and direction in a relative sense can be achieved in a range of a certain length and height, and the universal illuminating lamp has the advantage of wide universality; moreover, the multi-angle and multi-position illumination effect can be formed within a certain range, and the illumination device is particularly suitable for meeting the illumination requirements of no dead angle and eye protection. For example, the illuminating member includes an end illuminating member and a middle illuminating member, each of the illuminating members includes an illuminating body, the illuminating body has a light source and a control circuit thereof, for example, the light source is an LED lamp, for example, the illuminating body has an LED lamp and a control circuit thereof, for example, the control circuit includes a control module and a connecting circuit thereof, and the control module is respectively connected with the LED lamps through the connecting circuit. For example, each of the illuminating members of the universal illuminating device includes a rotating body including an end rotating body, a front rotating body and a rear rotating body, wherein the end illuminating member has the end rotating body, and the intermediate illuminating member has the front rotating body and the rear rotating body, that is, each of the intermediate illuminating members has the front rotating body and the rear rotating body. In one embodiment, the mounting bracket is a mounting post; for example, the mounting bracket is a mounting post, and the base rotator is located at one end of the mounting post. For example, one end of the mounting post is fixedly provided with the base rotator, and the rear rotator of the middle lighting element at the tail end is connected with the base rotator through a rotating shaft. It can be understood that the structure of the mounting bracket or the length of the mounting column can be flexibly adjusted or designed according to different requirements and practical applications, and only the mounting bracket can be used for integrally fixing the at least three lighting parts.
Further, in one embodiment, the illuminating body is provided with a sphere, and the sphere is provided with at least one first LED lamp. In one embodiment, in the intermediate illuminating member, a position where one end of the front support is fixedly connected to the intermediate illuminating body, and a position where one end of the rear support is fixedly connected to the intermediate illuminating body are symmetrically arranged with respect to a center of a sphere of the sphere. Like this, the illuminating body who adopts the spheroid structure, no matter to tip illuminating part or each middle illuminating part, all can provide the illumination direction of more angles better and select, and the rotation of cooperation rotator, including the rotation of tip rotator and/or the rotation of preceding rotator and back rotator, can reach the illuminating effect of relative most significant optional position and direction, and then form the illuminating effect of multi-angle multiposition within a certain extent. Further, in one embodiment, the illuminating body is further provided with a circular ring body and a first rotating shaft, one end of the end supporting body is fixedly connected with the circular ring body of the end illuminating body, one end of the front supporting body and one end of the rear supporting body are respectively fixedly connected with the circular ring body of the middle illuminating body, two ends of the first rotating shaft are respectively fixedly connected with the circular ring body, and the sphere is rotatably connected with the first rotating shaft. Therefore, the ball body can rotate relative to the annular body, and the universal lighting device can better adjust the lighting angle and the lighting position of each lighting piece. Further, a cavity and a wire groove are formed in the sphere, the control module is disposed in the cavity, the wire groove communicates the cavity with the mounting position of the light source, for example, the wire groove communicates the cavity with the mounting position of each LED lamp, the connection circuit is disposed in the wire groove, and the control module is respectively connected to each LED lamp, for example, each first LED lamp, through the connection circuit. Further, in one embodiment, the illuminating body is further provided with a second rotating shaft, the second rotating shaft is rotatably connected with the first rotating shaft, and the ball body is rotatably connected with the second rotating shaft. Like this, can realize the spheroid for the torus has two rotational degrees of freedom to can realize being close to unrestricted rotation and spatial position and remove, further realize more nimble changeable illumination position, can reach the illuminating effect of relative arbitrary position and direction in certain angle, length and the within range of height, be particularly suitable for satisfying the illumination demand that does not have the dead angle and protect eyes. In one embodiment, the sphere is further provided with at least one second LED lamp, and the second LED lamp and the first LED lamp are the same in size or different in size. Further, the control module is respectively connected with the LED lamps, such as the first LED lamps and/or the second LED lamps, through the connection lines. Like this, through the first LED lamp of second LED lamp cooperation, can reach richer changeable illuminating effect. Furthermore, at least one LED lamp and its control circuit are disposed on the illuminating body, for example, at least one LED lamp is disposed on the surface of the illuminating body, the control circuit is disposed inside the illuminating body and the control circuit is connected to each LED lamp; furthermore, the control circuit is provided with a wireless signal receiving module for receiving wireless signals to control the switch of each LED lamp. It is understood that the LED lamp includes a first LED lamp and/or a second LED lamp. Further, in one embodiment, the rotating shaft connection is a rotating shaft fastening connection, for example, the rotating shaft fastening connection includes a rotating shaft connection and is fixed by a screw, a rotating shaft connection and is fixed to each other by a snap structure, a rotating shaft connection and is fixed to each other by a clamping structure, and/or a rotating shaft connection and is fixed to each other by a plug structure, etc.; for example, the snap structure includes a pair of snap members that mate with each other, and so on. For example, the rear rotating body of the previous intermediate illuminating piece is tightly connected with the front rotating body of the next intermediate illuminating piece; for example, the rear rotating body of the previous intermediate illuminating member is rotatably connected with the front rotating body of the next intermediate illuminating member and fixed by screws; as another example, the front lighting element is a front lighting element, the rear rotating body of the middle lighting element is connected with the rear rotating body of the middle lighting element in a rotating manner and is fixed to the front rotating body in a rotating manner through a buckle structure, for example, the front lighting element is a front lighting element, the rear rotating body of the middle lighting element is connected with the rear rotating body of the middle lighting element in a rotating manner, the front lighting element is provided with a buckle element and a buckle element, and the buckle elements are matched with each other and buckled to be connected with the front rotating body of the middle lighting element in a matched manner, so that the front lighting element is fixed to the rear rotating body of the middle lighting element. Therefore, when a screw, a fastening structure or two fastening pieces are loosened, the rear rotating body of the previous middle illuminating piece and the front rotating body of the next middle illuminating piece can rotate relatively, so that the previous middle illuminating piece and the next middle illuminating piece can rotate relatively, and when the screw, the fastening structure or the two fastening pieces are tightened, the rear rotating body of the previous middle illuminating piece and the front rotating body of the next middle illuminating piece can be fixed relatively, so that the previous middle illuminating piece and the next middle illuminating piece are fixed relatively.
Another embodiment of the present invention is a light emitting structure, which includes the heat dissipating structure of any of the above embodiments and a light source fixed on a side of the mounting board of the heat dissipating device away from the sixth connecting member. In one embodiment, the light emitting structure is an LED display screen, and the light source is an array of LED lamps. In one embodiment, the light emitting structure is a lighting fixture. Further, the light emitting structure further includes a light guide plate covering the light source to protect the light source and guide out light of the light source.
For example, as shown in fig. 2, an embodiment of the invention is a light emitting structure, which includes a base 100, a reinforcing member 200, a pillar 300, a first supporting member 400, a second supporting member 500, a heat dissipation member 600, a first auxiliary heat dissipation plate 610, a second auxiliary heat dissipation plate 630, a third auxiliary heat dissipation plate 720, a mounting plate 700, a light source 800 and a light guide plate 900. The pillar 300 is fixed on the base 100, the reinforcement member 200 is disposed around the pillar 300 and the reinforcement member 200 connects the pillar 300 and the base 100, respectively, the reinforcement member is used to reinforce the stability of the fixing relationship between the pillar and the base, so that the fixing relationship between the pillar and the base is more stable, and the design is particularly suitable for the heat dissipation device with longer connecting piece. The first support 400 is mounted to the pillar 300 by at least three first connectors 310; the second support 500 is mounted to the first support 400 by at least three second connectors 410; the heat sink 600 is mounted to the second support 500 through a second third connector 510; the first auxiliary heat dissipation plate 610 is disposed on a side surface of the heat dissipation member 600 away from the third connector 510; the second auxiliary heat dissipation plate 630 is mounted to the first auxiliary heat dissipation plate 610 through at least three fourth connectors 620; the third auxiliary heat dissipation plate 720 is mounted to the second auxiliary heat dissipation plate 630 by at least three fifth connectors 640; the mounting plate 700 is mounted on the third auxiliary heat sink 720 through at least three sixth connectors 710, the light source 800 is fixed on a side of the mounting plate 700 away from the sixth connectors 710, the light guide plate 900 is also fixed on a side of the mounting plate 700 away from the sixth connectors 710, and the light guide plate 900 covers the light source 800 to protect the light source 800 and guide out light of the light source 800. Further, as shown in fig. 3, the light source 800 is an array of LED lamps, or the light source 800 includes an array of LED lamps.
It should be noted that other embodiments of the present invention further include a heat dissipation device and a light emitting structure, which are formed by combining technical features of the above embodiments.
the technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A heat dissipation device is characterized by comprising a base, a reinforcing piece, a support column, a first supporting piece, a second supporting piece, a heat dissipation piece, a first auxiliary heat dissipation plate, a second auxiliary heat dissipation plate, a third auxiliary heat dissipation plate and a mounting plate;
The pillar is fixed on the base, the reinforcing member is arranged around the pillar, and the reinforcing member is respectively connected with the pillar and the base;
The first support is mounted to the strut by at least three first connectors;
The second support member is mounted to the first support member by at least three second connectors;
The heat dissipation piece is mounted on the second support piece through two third connecting pieces;
The first auxiliary heat dissipation plate is arranged on one side surface, far away from the third connecting piece, of the heat dissipation piece;
The second auxiliary heat dissipation plate is mounted on the first auxiliary heat dissipation plate through at least three fourth connecting pieces;
The third auxiliary heat dissipation plate is mounted on the second auxiliary heat dissipation plate through at least three fifth connecting pieces;
The mounting plate is mounted on the third auxiliary heat dissipation plate through at least three sixth connecting pieces, and one side face, far away from the sixth connecting pieces, of the mounting plate is used for mounting a heat source;
The three auxiliary heat dissipation plates of the heat dissipation device comprise a first auxiliary heat dissipation plate, a second auxiliary heat dissipation plate and a third auxiliary heat dissipation plate which are all of hollow structures;
The heat conduction coefficient of the first auxiliary heat dissipation plate is larger than that of the heat dissipation member, and the heat conduction coefficient of the third auxiliary heat dissipation plate, the heat conduction coefficient of the second auxiliary heat dissipation plate, the heat conduction coefficient of the first auxiliary heat dissipation plate and the heat conduction coefficient of the heat dissipation member form a descending array.
2. The heat dissipation device as claimed in claim 1, wherein the first support member and the second support member are respectively provided with a plurality of first through holes.
3. The heat dissipating device of claim 1, wherein the first connecting member and the second connecting member are disposed at different positions.
4. The heat dissipating device of claim 1, wherein the fourth connecting member and the fifth connecting member are disposed at different positions.
5. The heat dissipation device of claim 1, wherein the third connection member comprises a telescopic structure and a control motor thereof which are nested with each other.
6. The heat dissipating device of claim 1, wherein the thermal conductivity of the sixth connecting element, the thermal conductivity of the third auxiliary heat dissipating plate, the thermal conductivity of the fifth connecting element, the thermal conductivity of the second auxiliary heat dissipating plate, the thermal conductivity of the fourth connecting element, the thermal conductivity of the first auxiliary heat dissipating plate, and the thermal conductivity of the heat dissipating element form a decreasing series.
7. The heat dissipating device of claim 1, wherein the mounting plate has a plurality of second through holes, and the mounting plate has a spiral groove at a periphery of the second through holes.
8. The heat dissipating device of claim 1, further comprising a swivel base, wherein the swivel base is fixed to the base, and the supporting column is fixed to the swivel base and disposed on the base through the swivel base.
9. A light-emitting structure comprising the heat dissipating structure according to any one of claims 1 to 7 and a light source fixed to a side of the mounting board of the heat dissipating device away from the sixth connecting member.
10. The structure of claim 9, wherein the light emitting structure is an LED display screen and the light source is an array of LED lights.
11. The structure of claim 9, wherein the structure is a lighting fixture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810199374.9A CN108443722B (en) | 2018-03-12 | 2018-03-12 | Heat dissipation device and light emitting structure |
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| CN201810199374.9A CN108443722B (en) | 2018-03-12 | 2018-03-12 | Heat dissipation device and light emitting structure |
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| CN108443722A CN108443722A (en) | 2018-08-24 |
| CN108443722B true CN108443722B (en) | 2019-12-13 |
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| KR20080112566A (en) * | 2007-06-21 | 2008-12-26 | (주)리더라이텍 | 360 rotary spot righter |
| CN201487735U (en) * | 2009-08-07 | 2010-05-26 | 邵洪永 | LED street lamp |
| KR101396404B1 (en) * | 2012-09-26 | 2014-05-19 | 한국광기술원 | Lighting apparatus |
| CN205716511U (en) * | 2016-03-24 | 2016-11-23 | 南安市达腾商务服务有限公司 | A kind of LED lamp bar |
| CN206330105U (en) * | 2016-12-23 | 2017-07-14 | 潍坊科佳光电有限公司 | A kind of high power LED lamp refrigerating device |
| CN206592831U (en) * | 2017-01-19 | 2017-10-27 | 象山杰尔德智能科技有限公司 | A kind of radiating grid of LED lamp |
| CN206522752U (en) * | 2017-02-09 | 2017-09-26 | 中山市万径科技发展有限公司 | A kind of energy-saving illumination device |
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