CN218846074U - Double-deck heat dissipation casing and have its stage lamp - Google Patents

Abstract

The utility model discloses a double-layer heat dissipation shell and a stage lamp with the same, wherein one double-layer heat dissipation shell comprises an inner shell and an outer shell arranged outside the inner shell, the inner shell is enclosed to form a first cavity, a second cavity is formed between the outer shell and the inner shell, and both ends of the inner shell are respectively provided with an air inlet and an air outlet which are communicated with the first cavity; the double-layer heat dissipation shell is arranged, the power mechanism drives the air in the second cavity to flow from the air inlet to the air outlet, the double-layer heat dissipation shell is arranged, the power mechanism drives the air to flow, and therefore heat dissipation efficiency of the double-layer heat dissipation shell is improved. Along with the continuous flowing of the gas, the heat of the outer side wall of the inner shell can be taken away in time, and meanwhile, the gas with higher temperature is distributed more uniformly in the second cavity, so that the heat exchange efficiency of the outer shell is improved; meanwhile, under the driving of the power mechanism, the phenomenon that the heat is accumulated at a certain position of the first cavity or the second cavity so that the electronic component close to the position is damaged due to overhigh temperature is avoided.

Description

Double-deck heat dissipation casing and have its stage lamp

Technical Field

The utility model relates to a stage lamp technical field, more specifically relates to a double-deck heat dissipation casing and have its stage lamp.

Background

In order to pursue stage lamps with higher brightness and richer effects, the power of the stage lamps on the market is increased. However, conventional stage lights rely primarily on the provision of heat sinks to dissipate the heat from the lamp cavity to the ambient air, but still have a significant amount of heat to be dissipated through the housing of the stage light. In the working process of the stage lamp, the heat sources in the lamp cavity are distributed in a concentrated mode, after the shell close to the heat sources absorbs certain heat, part of the heat exchanges heat with the outside air, the other part of the heat exchanges heat with the outside air after being transmitted to the position, with lower temperature, of the shell along the shell, and the heat distribution of the whole shell is extremely uneven and low in heat dissipation efficiency.

The heat generated by the light source and the electronic element inside the lamp body cannot be dissipated through the housing in a large amount due to the heat dissipation manner, so that the power of the radiator fan needs to be increased to make up, and relatively high noise is brought. If the temperature in the lamp cavity is in a high temperature state for a long time, the light source and the electronic components of the lamp cavity can not work normally or even be burnt out due to over-temperature, and the reliability and the service life of the stage lamp are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art at least a defect, provide a double-deck heat dissipation casing and have its stage lamp, solve the problem that stage lamp shell radiating efficiency is low.

In order to solve the technical problem, the utility model adopts the technical scheme that: a double-layer heat dissipation shell comprises an inner shell and an outer shell arranged outside the inner shell, wherein the inner shell is enclosed to form a first cavity, a second cavity is formed between the outer shell and the inner shell, and an air inlet and an air outlet which are communicated with the first cavity are respectively arranged at two ends of the inner shell; the air inlet is connected with the air outlet, and the air outlet is connected with the air inlet.

Through the arrangement of the double-layer heat dissipation shell, the power mechanism is used for driving the gas with higher temperature in the first cavity to enter the second cavity from the air inlet and flow to the air outlet at the other end of the inner shell, so that the gas with higher temperature in the first cavity can be fully contacted with the outer shell, and the heat dissipation efficiency of the double-layer heat dissipation shell is improved. Along with the continuous flowing of the gas, the heat of the outer side wall of the inner shell can be timely taken away, and meanwhile, the gas with higher temperature is more uniformly distributed in the second cavity, so that the heat exchange efficiency of the outer shell is improved; meanwhile, under the driving of the power mechanism, the situation that heat is accumulated at a certain position of the first cavity or the second cavity so that electronic components close to the position are damaged due to overhigh temperature is avoided.

Furthermore, a plurality of first heat dissipation fins extending along the direction from the air inlet to the air outlet are arranged in the second cavity. Make arbitrary adjacent 2 first heat radiation fins form wind-guiding channel, the guide is located the gas in the second cavity flows from the air intake flows to the air outlet, meanwhile, first heat radiation fins's setting has further increased the inner shell or the area of contact of shell and gas is favorable to improving heat exchange efficiency between the two, can in time distribute the heat in the first cavity.

Further, the first heat dissipation fins are connected with the inner shell and the outer shell, and the first heat dissipation fins, the inner shell and the outer shell are integrally formed. The arrangement ensures the supporting strength of the double-layer radiating shell, simultaneously ensures that the inner shell is more tightly connected with the outer shell, and the integrated forming process is simple and easy to realize.

Furthermore, a plurality of second heat dissipation fins are arranged on one side surface of the shell, which is far away from the second cavity. Through setting up a plurality of second heat radiation fins, increased the area of contact of shell and external cold air, effectively improve the heat exchange efficiency between shell and the external world.

Further, the inner shell includes relative protecgulum, the back lid that sets up and 2 side covers that set up relatively, the axis of rotation that is used for the pin joint is installed to the side cover, first cavity by the protecgulum, back lid lock close the side cover encloses jointly and closes and form, the shell sets up the protecgulum with the back lid outside. Due to the arrangement, the shell can be omitted outside the side covers, the rotating shaft can generate circumferential force in the working process, the side covers with certain supporting strength are arranged to install the rotating shaft, stable support can be provided for the rotating shaft, and the phenomenon that a shell body near the installation position of the rotating shaft cracks is avoided.

Furthermore, the side edge of the front cover and the side edge of the rear cover are connected with the side cover in a sealing mode. Due to the arrangement, water vapor or water drops are prevented from entering from the connecting parts of the front cover, the rear cover and the side cover, and the sealing performance of the first cavity and the second cavity is guaranteed.

Furthermore, the side edge of the side cover close to the front cover and/or the rear cover is protruded with a convex strip, and the side edge of the front cover and/or the rear cover close to the side cover is recessed with a groove corresponding to the convex strip. Through the sand grip with the cooperation of recess, the protecgulum and/or the back lid can be fast and firmly with the side cap cooperation installation, difficult mutual release after the installation, and simple structure easily processes.

Furthermore, the power mechanism is a fan, the air inlet and the air outlet are both provided with the fan, and one side of the fan close to the end part of the inner shell inclines towards the direction close to the outer shell by taking the inner shell as a reference. Because the distance between the inner shell and the outer shell is short, if the rotation plane of the fan is parallel to the inner shell, most of gas is blown into the second cavity and then collides with the outer shell along the direction perpendicular to the inner shell under the driving of the fan, most of kinetic energy is lost, and then the gas flows to the air outlet along the outer shell, so that the driving force of the fan on the movement of the gas along the direction from the air inlet to the air outlet is weakened, and the arrangement of the fan in the scheme ensures that most of gas can directly move along the direction from the air inlet to the air outlet under the driving of the fan, so that the overall flow rate of the gas is accelerated, and the heat dissipation efficiency is further improved.

The utility model also provides a stage lamp, including aforementioned any kind double-deck heat dissipation casing still includes quick-witted case, pin joint in the support arm of quick-witted case top and is used for producing the lamp holder of illuminating effect, the lamp holder pin joint in the inboard of support arm, double-deck heat dissipation casing does the shell of lamp holder the shell of support arm or at least one kind among the machine case shell. The temperature of the lamp holder, the support arm or the inside of the case can be effectively reduced, and the electronic components in the parts can be effectively prevented from being damaged due to high temperature.

Furthermore, the double-layer heat dissipation shell is a shell of the lamp cap, the first cavity is provided with a light outlet, and the light outlet is provided with a light outlet lens for sealing the light outlet; the light source is mounted at one end, far away from the light outlet, of the first cavity, one of the air inlet and the air outlet is arranged close to the light source, and the other one of the air inlet and the air outlet is arranged close to the light outlet. Because the main heat of the stage lamp comes from the lamp holder, the shell of the lamp holder is arranged into the double-layer radiating shell, so that the radiating efficiency of the lamp holder can be effectively improved, and the stability of the performance of the stage lamp is further ensured. Furthermore, most of heat in the lamp holder comes from the light source, so that a large amount of gas with high temperature surrounds the light source in the working process of the stage lamp, one of the air outlet or the air inlet is arranged close to the light source, the other one of the air outlet or the air inlet is arranged close to the light outlet, and the flow channel of the gas with high temperature in the second cavity is lengthened, so that the gas is effectively cooled, and the normal use and the service life of the light source are ensured.

Drawings

Fig. 1 is an explosion structure diagram of a double-layer heat dissipation casing of the present invention.

Fig. 2 is a schematic view of a combined structure of a double-layer heat dissipation casing of the present invention.

Fig. 3 is a schematic top view of the double-layer heat dissipation housing of the present invention.

Fig. 4 is a schematic structural view of the double-layered heat dissipation housing of the present invention after being cut open from the middle.

Fig. 5 is a schematic view of the overall structure of the stage lamp with the double-layer heat dissipation shell.

In the figure:

110. an inner shell; 111. an air inlet; 112. an air outlet; 113. a front cover; 114. a rear cover; 115. a side cover; 116. a convex strip; 117. a groove; 118. an installation table; 120. a housing; 121. a second heat radiation fin; 130. a first cavity; 140. a second cavity; 141. a first heat dissipation fin; 150. a fan; 160. a rotating shaft; 170. a waterproof adhesive tape; 200. a chassis; 300. a lamp cap; 310. a light emitting lens; 320. a light source; 330. a heat sink; 400. a support arm.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

As shown in fig. 1 to 4, a double-layered heat dissipation housing includes an inner housing 110 and an outer housing 120 disposed outside the inner housing 110, the inner housing 110 encloses to form a first cavity 130, a second cavity 140 is formed between the outer housing 120 and the inner housing 110, and an air inlet 111 and an air outlet 112 communicated with the first cavity 130 are respectively disposed at two ends of the inner housing 110; the gas-liquid separator further comprises a power mechanism, wherein the power mechanism drives the gas in the second cavity 140 to flow from the air inlet 111 to the air outlet 112.

By arranging the double-layer heat dissipation shell, the power mechanism is used to drive the gas with higher temperature in the first cavity 130 to enter the second cavity 140 from the air inlet 111 and flow to the air outlet 112 at the other end of the inner shell 110, so that the gas with higher temperature in the first cavity 130 can be in full contact with the outer shell 120, and the heat dissipation efficiency of the double-layer heat dissipation shell is improved. With the continuous flow of the gas, the heat of the outer side wall of the inner shell 110 can be timely taken away, and the gas with higher temperature is distributed more uniformly in the second cavity 140, so as to improve the heat exchange efficiency of the outer shell 120; meanwhile, under the driving of the power mechanism, the situation that heat is accumulated in a certain position of the first cavity 130 or the second cavity 140, so that electronic components close to the position are damaged due to overhigh temperature is avoided.

Preferably, the double-layered heat dissipation housing is cylindrical, the inner shell 110 and/or the outer shell 120 are made of aluminum alloy, graphene, magnesium alloy, or other materials with good thermal conductivity, and in a preferred embodiment, the inner shell 110 and the outer shell 120 are made of aluminum alloy because the aluminum alloy has the characteristics of high thermal conductivity, light weight, and the like.

In the preferred embodiment of the present invention, a plurality of first heat dissipation fins 141 are disposed in the second cavity 140 and extend along the direction from the air inlet 111 to the air outlet 112. Any adjacent 2 first heat dissipation fins 141 form an air guiding channel to guide the air in the second cavity 140 to flow from the air inlet 111 to the air outlet 112, and meanwhile, the arrangement of the first heat dissipation fins 141 further increases the contact area between the inner shell 110 or the outer shell 120 and the air, which is beneficial to improving the heat exchange efficiency between the two, and can dissipate the heat in the first cavity 130 in time. The plurality of first heat dissipation fins 141 are arranged in parallel.

Preferably, the thickness of the first radiator fins 141 may be set to at least 2 sizes, that is, the thickness of the first radiator fins 141 away from the air inlet 111 or the air outlet 112 is thicker, and the thickness of the first radiator fins 141 close to the air inlet 111 or the air outlet 112 is thinner, so that a wider air guiding channel may be formed, and at the same time, the first radiator fins 141 may be ensured to firmly connect the inner housing 110 and the outer housing 120.

As shown in fig. 1 and 4, in a preferred embodiment of the present invention, the first heat dissipation fins 141 connect the inner shell 110 and the outer shell 120, and the first heat dissipation fins 141, the inner shell 110 and the outer shell 120 are integrally formed. The arrangement not only ensures the supporting strength of the double-layer heat dissipation shell, but also makes the connection between the inner shell 110 and the outer shell 120 tighter, and the process of integral molding is simple and easy to implement.

In the preferred embodiment of the present invention, a side of the housing 120 away from the second cavity 140 is provided with a plurality of second heat dissipation fins 121. By arranging the plurality of second heat dissipation fins 121, the contact area between the housing 120 and the outside cold air is increased, and the heat exchange efficiency between the housing 120 and the outside is effectively improved.

Preferably, the second heat dissipation fins 121 are parallel to each other, so that an air channel is formed between adjacent second heat dissipation fins 121 and is uniformly distributed on a side surface of the housing 120 away from the second cavity 140. The second radiator fins 121 may be disposed in a direction parallel to the first radiator fins 141 or in a direction perpendicular to the first radiator fins 141, which is not absolutely parallel or perpendicular to the vertical direction.

In the preferred embodiment of the present invention, the inner shell 110 includes a front cover 113, a rear cover 114 and 2 side covers 115, the front cover 113, the rear cover 114 and the 2 side covers 115 are oppositely disposed, the side covers 115 are provided with a rotating shaft 160 for pivoting, the first cavity 130 is formed by the front cover 113, the rear cover 114 being buckled to the side covers 115, and the outer shell 120 is disposed outside the front cover 113 and the rear cover 114. With such an arrangement, the case may not be disposed outside the side cover 115, and since the rotating shaft 160 may generate a circumferential force during operation, the side cover 115 having a certain supporting strength may be disposed to mount the rotating shaft 160, so that stable support may be provided for the rotating shaft 160, and a case crack phenomenon near a mounting position of the rotating shaft 160 may be prevented.

As shown in fig. 1, in the preferred embodiment of the present invention, the side of the front cover 113 and the side of the rear cover 114 are connected with the side cover 115 in a sealing manner. Due to the arrangement, water vapor or water drops are prevented from entering from the connection positions of the front cover 113, the rear cover 114 and the side cover 115, and the tightness of the first cavity 130 and the second cavity 140 is ensured.

Preferably, a waterproof rubber strip 170 is disposed between the side edge of the front cover 113 and the side cover 115, and the side edge of the rear cover 114 and the side cover 115 are sealed in the same manner.

In the preferred embodiment of the present invention, the side of the side cover 115 close to the front cover 113 and/or the rear cover 114 is protruded with a convex strip 116, and the side of the front cover 113 and/or the rear cover 114 close to the side cover 115 corresponds to the concave groove 117 of the convex strip 116. Through the cooperation of the protruding strips 116 and the grooves 117, the front cover 113 and/or the rear cover 114 can be quickly and firmly installed in cooperation with the side cover 115, and are not easy to loosen after installation, and the structure is simple and easy to process.

Alternatively, other locking means such as a snap or glue may be used.

As shown in fig. 1 to 3, in a preferred embodiment of the present invention, the power mechanism is a fan 150, the air inlet 111 and the air outlet 112 are both provided with the fan 150, and one side of the fan 150 close to the end of the inner shell 110 is inclined toward the outer shell 120 with respect to the inner shell 110. Due to the short distance between the inner housing 110 and the outer housing 120, if the rotation plane of the blower 150 is parallel to the inner housing 110, most of the gas is blown into the second cavity 140 and then impacts the outer housing 120 in the direction perpendicular to the inner housing 110 under the driving of the blower 150, most of the kinetic energy is lost, and then the gas flows along the outer housing 120 toward the air outlet 112, so that the driving force of the blower 150 on the gas moving along the direction from the air inlet 111 to the air outlet 112 is reduced, and the arrangement of the blower 150 in the solution enables most of the gas to directly move along the direction from the air inlet 111 to the air outlet 112 under the driving of the blower 150, so as to accelerate the overall flow rate of the gas and further improve the heat dissipation efficiency.

Preferably, a plurality of first heat dissipation fins 141 extending along the direction from the air inlet 111 to the air outlet 112 are disposed in the second cavity 140, any adjacent 2 first heat dissipation fins 141 form an air guiding channel to guide the air in the second cavity 140 to flow from the air inlet 111 to the air outlet 112, and compared with a scheme in which the fan 150 is disposed parallel to the inner shell 110, the fan 150 in this scheme has a larger contact area with the air guiding channel by inclining the fan 150 toward the direction close to the outer shell 120, that is, the opening area of the air inlet 111 and/or the air outlet 112 is further enlarged, so that more air can enter the second cavity 140.

Preferably, the inner shell 110 is provided with a mounting platform 118 for supporting one side of the fan 150, and the fan 150 is supported by the first heat dissipation fins 141 close to the fan 150, so that the mounting platform 118 and the first heat dissipation fins 141 jointly fix the fan 150, and in such an arrangement, the fan 150 does not protrude to the first cavity 130 too much, so as to avoid interfering with the installation or work of the electronic components inside the first cavity 130.

As shown in fig. 1 and 5, the present invention further provides a stage lamp, which comprises any one of the above-mentioned double-layer heat dissipation shell, further comprising a case 200, a support arm pivoted above the case 200, and a lamp head 300 for generating lighting effect, wherein the lamp head 300 is pivoted on the inner side of the support arm, and the double-layer heat dissipation shell is at least one of the shell 120 of the lamp head 300, the shell 120 of the support arm, or the shell 120 of the case 200. The temperature inside the lamp cap 300, the support arm or the chassis 200 can be effectively reduced, and the electronic components in these parts can be effectively prevented from being damaged due to high temperature.

In the preferred embodiment of the present invention, the double-layer heat dissipation housing is the outer shell 120 of the lamp cap 300, the first cavity 130 has a light outlet, and the light outlet is installed with a light emitting lens 310 sealing the light outlet; the light source 320 is mounted at one end of the first cavity 130, which is far away from the light outlet, one of the air inlet 111 and the air outlet 112 is close to the light source 320, and the other is close to the light outlet. Because the main heat of stage lamp comes from lamp holder 300, so with the shell 120 of lamp holder 300 sets up to double-deck heat dissipation casing can effectively improve the radiating efficiency of lamp holder 300, further guarantees the stability of stage lamp performance. Further, since most of the heat in the lamp head 300 comes from the light source 320, during the stage lighting operation, a large amount of relatively high temperature gas surrounds the light source 320, one of the air outlet 112 or the air inlet 111 is disposed close to the light source 320, and the other is disposed close to the light outlet, so that the flow channel of the relatively high temperature gas in the second cavity 140 is lengthened, the gas is effectively cooled, and the normal use and the service life of the light source 320 are ensured.

Preferably, the number of the air inlets 111 and the number of the air outlets 112 are both 4, 2 air inlets 111 are respectively arranged on two sides of the light outlet, and 2 air outlets 112 are respectively arranged on two sides of the light source 320. When the stage lamp works, the temperature of the gas near the light outlet is lower than that of the gas near the light source 320, and the power mechanism drives the cooler gas near the light outlet to enter from the air inlet 111 and blow out from the air outlet 112 to cool the light source 320.

Preferably, when the stage lamp is a waterproof stage lamp, the light emitting lens 310 and the heat sink 330 are hermetically connected to the double-layer heat dissipation shell. The hotter gas enters the second cavity 140 from the first cavity 130 through the air inlet 111 to dissipate heat to form a cooler gas, and then blows out the cooler gas from the air outlet 112 to dissipate heat of the electronic components in the first cavity 130 to become a hotter gas, and then enters the next cycle, that is, the gas continuously circulates in the double-layer heat dissipation shell, and heat is dissipated mainly by exchanging heat between the outer shell 120 and the outside, and the double-layer heat dissipation shell has higher heat dissipation efficiency than a single-layer shell.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The double-layer heat dissipation shell is characterized by comprising an inner shell (110) and an outer shell (120) arranged outside the inner shell (110), wherein the inner shell (110) is enclosed to form a first cavity (130), a second cavity (140) is formed between the outer shell (120) and the inner shell (110), and an air inlet (111) and an air outlet (112) communicated with the first cavity (130) are respectively arranged at two ends of the inner shell (110); the gas-liquid separator further comprises a power mechanism, and the power mechanism drives the gas in the second cavity (140) to flow from the air inlet (111) to the air outlet (112).

2. The double-layered heat dissipation housing as claimed in claim 1, wherein a plurality of first heat dissipation fins (141) extending along a direction from the air inlet (111) to the air outlet (112) are disposed in the second cavity (140).

3. The double-layered heat dissipating housing as claimed in claim 2, wherein the first heat dissipating fins (141) connect the inner housing (110) and the outer housing (120), and the first heat dissipating fins (141), the inner housing (110) and the outer housing (120) are integrally formed.

4. The double-layered heat-dissipating housing as claimed in claim 1, wherein a plurality of second heat-dissipating fins (121) are disposed on a side of the casing (120) away from the second cavity (140).

5. The double-layer heat dissipation shell according to claim 1, wherein the inner shell (110) comprises a front cover (113), a rear cover (114) and 2 side covers (115), the front cover (113) and the rear cover (114) are arranged oppositely, the side covers (115) are provided with rotating shafts (160) for pivoting, the first cavity (130) is formed by jointly enclosing the front cover (113) and the rear cover (114) in a buckling manner on the side covers (115), and the outer shell (120) is arranged outside the front cover (113) and the rear cover (114).

6. The double-layered heat-dissipating housing as claimed in claim 5, wherein the side edges of the front cover (113) and the side edges of the rear cover (114) are hermetically connected to the side covers (115).

7. The double-layer heat dissipation casing as recited in claim 5, wherein a protruding strip (116) protrudes from a side edge of the side cover (115) close to the front cover (113) and/or the rear cover (114), and a groove (117) is recessed from a side edge of the front cover (113) and/or the rear cover (114) close to the side cover (115) corresponding to the protruding strip (116).

8. The double-layer heat dissipation shell as claimed in claim 1, wherein the power mechanism is a fan (150), the air inlet (111) and the air outlet (112) are both provided with the fan (150), and based on the inner shell (110), one side of the fan (150) close to the end of the inner shell (110) is inclined towards the direction close to the outer shell (120).

9. A stage lamp comprising the double-layered heat dissipation housing as claimed in any one of claims 1 to 8, further comprising a cabinet (200), a support arm pivotally connected above the cabinet (200), and a lamp head (300) for generating a lighting effect, wherein the lamp head (300) is pivotally connected to an inner side of the support arm, and the double-layered heat dissipation housing is at least one of a housing (120) of the lamp head (300), a housing (120) of the support arm, or a housing (120) of the cabinet (200).

10. The stage lamp according to claim 9, wherein the double-layer heat dissipation case is an outer case (120) of the lamp cap (300), the first cavity (130) has a light outlet, and the light outlet is provided with a light outlet lens (310) sealed therein; the double-layer heat dissipation shell comprises a first cavity (130), a light outlet, a light inlet (111) and a light outlet (112), and is characterized by further comprising a light source (320) for generating light beams and a heat sink (330) buckled at one end, far away from the light outlet, of the double-layer heat dissipation shell, wherein the light source (320) is installed at one end, far away from the light outlet, of the first cavity (130), one of the air inlet (111) and the air outlet (112) is arranged close to the light source (320), and the other one of the air inlet and the air outlet is arranged close to the light outlet.

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