CN215808014U - Parallel external radiating lamp - Google Patents

Abstract

The utility model discloses a parallel external radiating lamp, which comprises: the lamp comprises a heat dissipation outer machine and at least two lamp bodies; the lamp bodies are all arranged in an enclosed space, and the heat dissipation outer machine is arranged outside the enclosed space; the heat dissipation outer machine is connected with each lamp body in parallel through the liquid cooling pipe; the liquid cooling pipeline is arranged inside the lamp body, the heat dissipation external unit at least comprises a liquid storage tank, a power pump and a heat dissipation part, and the liquid storage tank, the power pump and the heat dissipation part are connected in series through the liquid cooling pipe; the power pump is used for driving the cooling liquid to flow between the heat dissipation outer machine and the lamp body. The lamp body part and the heat dissipation part are completely separated, so that the mounting position of the heat dissipation part can be flexibly switched. For some places with strict noise requirements, such as a concert hall, a studio, a recording studio and the like, the noise generated by heat dissipation can be completely transferred outside a working area, and the effects of performance, recording, reception and the like are ensured; the parallel connection has better cooling effect and higher cooling efficiency.

Description

Parallel external radiating lamp

Technical Field

The utility model relates to the field of lamp heat dissipation, in particular to a parallel external heat dissipation lamp.

Background

The heat dissipation technology is always a problem of continuous research and improvement in the field of lamps. At present, lamps and lanterns mainly all solve the heat dissipation problem through inside from taking the radiator, and the form of radiator has following two kinds: (1) no fan type heat dissipation: namely, the radiator or the radiating fin is arranged in the lamp body, the lamp has the advantages of low noise, and the disadvantage that the radiator has large volume and is greatly restricted by the internal space of the lamp, so that the size of the lamp needs to be correspondingly increased; in addition, for a high-power light source, driver and power supply, the weight of the required heat sink is also considerable, which may cause a large load to the installation and use of the lamp. The current heat dissipation capability of the heat dissipation form is limited, the heat dissipation form is not suitable for being applied to lamps with the power of more than 500W according to the energy conversion efficiency, and the service life of a light source, a drive and a power supply is greatly shortened when the light source, the drive and the power supply are in a high-temperature state for a long time. (2) Fan type heat dissipation: compared with the first heat dissipation mode, the fan type heat dissipation device has the advantages that the heat dissipation capacity is stronger, the occupied size and the weight are smaller, the defect is that larger noise can be brought, and the noise is difficult to eliminate and avoid.

The heat dissipation part and the lamp body part of the existing lamp cannot be completely separated, and when the lamp is in practical use, the lamp needs to be installed indoors, and accordingly, the heat dissipation part needs to be installed indoors. However, in some specific application places, such as a concert hall, a studio, a recording studio, etc., the requirement for noise is very strict, and the noise or noise caused by the heat dissipation of the lamp can seriously affect the effects of performance and sound reception, thereby affecting the experience of audiences, and the problem is to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a parallel external radiating lamp, which can solve the problem that the prior illuminating lamp cannot separate a lamp body part from a radiating part so as to simultaneously meet the illuminating requirement and the mute requirement.

The utility model is realized by adopting the following technical scheme:

a parallel external heat-dissipating lamp comprises: the lamp comprises a heat dissipation outer machine and at least two lamp bodies; the lamp bodies are all arranged in an enclosed space, and the heat dissipation outer unit is arranged outside the enclosed space; the heat dissipation outer machine is connected with the lamp bodies in parallel through the liquid cooling pipes; the liquid cooling pipeline is arranged inside the lamp body, the heat dissipation external unit at least comprises a liquid storage tank, a power pump and a heat dissipation part, cooling liquid is stored in the liquid storage tank, the heat dissipation part comprises a heat radiator or a refrigerator, and the liquid storage tank, the power pump and the heat dissipation part are connected in series through liquid cooling pipes; the power pump is used for driving the cooling liquid to flow between the heat dissipation outer machine and the lamp body.

Furthermore, the heat dissipation external unit is externally connected with a water feeding main circuit and a return main circuit, and each lamp body is respectively connected with a water feeding branch circuit and a return branch circuit; each water feeding branch is connected with the water feeding branch, and each backflow branch is connected with the backflow main path, so that each lamp body is connected with the heat dissipation outer machine in parallel.

Furthermore, each lamp body is connected with a water feeding branch and a return branch respectively, and each lamp body is connected to the heat dissipation outdoor unit through the respective water feeding branch and the respective return branch.

Further, the heat dissipation part comprises a heat dissipation fin and a heat dissipation fan; the radiating fin is connected to the liquid storage tank and the liquid outlet end of the lamp body through the liquid cooling pipe, and the radiating fan is fixed on the side face of the radiating fin.

Further, the heat dissipation part further comprises a refrigerator; the refrigerator is connected to the tank through a liquid cooling tube.

Further, the lamp body further includes: a light source cold head; the light source cold head is fixed at the bottom of the light source of the lamp body, and a channel for flowing of cooling liquid is formed in the light source cold head; and the liquid inlet end and the liquid outlet end of the light source cold head are communicated with the heat dissipation outer machine through liquid cooling pipes.

Further, the lamp body further includes: a power supply cold head; the power supply cold head is fixed at the bottom of the power supply of the lamp body, and a channel for cooling liquid to flow is formed in the power supply cold head; the liquid inlet end of the power supply cold head is connected to the liquid outlet end of the light source cold head through a liquid cooling pipe, and the liquid outlet end of the power supply cold head is communicated with the heat dissipation external unit through a liquid cooling pipe.

Further, the lamp body further includes: driving the cold head; the driving cold head is fixed at the driving bottom of the lamp body, and a channel for cooling liquid to flow is formed in the driving cold head; the liquid inlet end of the driving cold head is connected with the liquid outlet end of the power supply cold head through a liquid cooling pipe, and the liquid outlet end of the driving cold head is connected with the heat dissipation external unit through a liquid cooling pipe.

Further, the lamp body further comprises a thermostat; and the liquid inlet end and the liquid outlet end of the thermostat are both connected to the light source cold head through liquid cooling pipes.

Further, the lamp body is a fixed lamp or a moving head lamp.

Compared with the prior art, the utility model can achieve the following beneficial effects:

(1) the liquid cooling heat dissipation mode is adopted for the whole lamp body, the heat dissipation mode that a fan and a large-size radiator are installed in the lamp body in the prior art is abandoned, the noise generated by the lamp in the running state is reduced, and the whole weight of the lamp body is lightened.

(2) The lamp body part and the heat dissipation part are completely separated, so that the mounting position of the heat dissipation part can be flexibly switched. For example, when the lamp body part is installed indoors, the heat dissipation outer machine can be installed outdoors, the lamp body part and the heat dissipation outer machine are completely separated through a wall body, for certain specific application places with strict noise requirements, such as a concert hall, a studio, a recording studio and the like, noise generated by heat dissipation can be completely transferred to the outside (outdoors) of a working area, effects of performance, recording, radio reception and the like are guaranteed, the experience of audiences is greatly improved, and great significance is provided for the application of lamps in such places.

(3) The lamp bodies are connected to the heat dissipation outer machine in a parallel mode, and the heat dissipation outer machine conveys cooling liquid to each lamp body through the branch circuits. Compared with the serial connection type, the cooling liquid in the same water channel needs to flow through different lamps in sequence, the cooling liquid in the parallel connection is divided into a plurality of branches to be directly input into each lamp, so that the temperature rise of the cooling liquid is smaller, the cooling effect obtained by each lamp is consistent, namely, the parallel connection has a better cooling effect, and the cooling efficiency is higher.

Drawings

FIG. 1 is a perspective view of a first embodiment of the present invention;

FIG. 2 is a top view of a first embodiment of the present invention;

FIG. 3 is a perspective view of a second embodiment of the present invention;

FIG. 4 is a top view of a second embodiment of the present invention;

fig. 5 is an external view of the heat dissipating external unit;

fig. 6 is an internal structural view of a heat-dissipating external unit;

fig. 7 is another internal structural view of the heat dissipating external unit;

fig. 8 is a plan view of a heat-dissipating outdoor unit;

fig. 9 is an external view of the lamp body;

fig. 10 is a view showing an internal structure of a lamp body;

fig. 11 is another internal structural view of the lamp body;

fig. 12 is a right side view showing the internal structure of the lamp body;

fig. 13 is a plan view showing the internal structure of the lamp body;

fig. 14 is a schematic connection diagram of a moving head type lamp adopted as a lamp body.

In the figure: 10. a lamp body; 11. a light source; 12. a power source; 13. driving; 14. a lamp body housing; 141. a liquid inlet; 142. a liquid outlet; 15. a moving head type lamp; 20. a heat-dissipating outdoor unit; 21. a liquid storage tank; 22. a power pump; 23. a heat dissipating section; 231. a heat sink; 232. a heat radiation fan; 24. a light source cold head; 25. a power supply cold head; 26. driving the cold head; 27. a thermostat; 30. enclosing a space; 31. a separator; 41. a water supply main road; 42. refluxing the main path; 51. a water feeding branch; 52. and (4) a reflux branch circuit.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The utility model discloses a parallel external radiating lamp, which transfers heat generated by the lamp in operation to a radiating part 23 in a liquid cooling mode to radiate. Referring to fig. 1-4, the present invention includes: a heat-dissipating outdoor unit 20 and at least two lamp bodies 10; the lamp body 10 is arranged in an enclosed space 30, the heat-dissipating external unit 20 is arranged outside the enclosed space 30, and the enclosed space 30 can be a concert hall, a studio, a recording studio or other indoor places; the enclosed space 30 is enclosed by a partition 31, and the partition 31 is a wall or a space isolation material, but may be any other known isolation material. Of course, the heat-dissipating outdoor unit 20 may be placed indoors while the lamp body 10 is placed outdoors for outdoor lighting.

The heat radiating outer unit 20 is connected in parallel to each lamp body 10 through a liquid cooling pipe.

A liquid cooling pipe is disposed inside the lamp body 10, and heat transfer is performed to the inside of the lamp body 10 when the cooling liquid flows therein. Referring to fig. 5 to 8, the heat-radiating outdoor unit 20 includes at least a liquid tank 21, a power pump 22, and a heat-radiating portion 23; the liquid storage tank 21 stores therein a cooling liquid, which may be a liquid, a refrigerant, or other known fluid having a cooling effect; the heat radiating portion 23 includes a heat radiator or a refrigerator, and the liquid storage tank 21, the power pump 22, and the heat radiating portion 23 are connected in series by a liquid-cooled tube; after the cooling liquid is driven by the power pump 22 to flow out of the liquid storage tank 21, the cooling liquid enters the interior of each lamp body 10 through different branches to take away heat inside the lamp body 10, and after the cooling liquid flows out of each lamp body 10, the cooling liquid enters the heat dissipation outdoor unit 20 again, and after the cooling liquid is cooled by the heat dissipation portion 23, the cooling liquid flows back into the liquid storage tank 21, so that a circulating cooling water path is formed.

Two embodiments of the parallel connection of the heat-dissipating outdoor unit 20 and the lamp body 10 are provided below.

The first embodiment is as follows: referring to fig. 1-2, the external heat dissipation unit 20 is externally connected with a main water supply path 41 and a main return path 42, and each lamp body 10 is connected with a water supply branch 51 and a return branch 52. Each water feeding branch 51 is connected with the water feeding branch 51, so that the cooling liquid in the water feeding main path 41 can be divided into the lamp bodies 10 through each water feeding branch 51; meanwhile, each backflow branch 52 is connected to the main backflow path 42, and the high-temperature liquid flowing out of each lamp body 10 is collected in the main backflow path 42 and uniformly flows back to the external heat dissipation unit 20 for heat dissipation; accordingly, the respective lamp bodies 10 and the heat radiating outer unit 20 are connected in parallel. The main water supply path 41, the main return path 42, the water supply branch 51 and the return branch 52 are all liquid cooling tubes.

Example two: referring to fig. 3 to 4, the external heat dissipation unit 20 does not have an external main path, and a plurality of branches are directly led out from the external heat dissipation unit 20, and each branch is connected to one lamp 10. Specifically, each lamp body 10 is connected to a water supply branch 51 and a return branch 52, and each lamp body 10 is connected to the outdoor heat sink 20 through the water supply branch 51 and the return branch 52. For example, when 4 lamp bodies 10 are provided, it can be understood that 8 ports are provided on the external heat dissipation unit 20, all the ports are communicated with the liquid storage tank 21 to draw out the cooling liquid (2 ports on the external heat dissipation unit 20 shown in fig. 4 are only exemplary, and the number of the ports is not limited), and 4 segments of the water supply branch 51 and 4 segments of the return branch 52 are connected to the external heat dissipation unit 20, respectively, and are connected to 4 lamp bodies 10.

Of course, the present invention is not limited to the above two embodiments, and any conventional parallel connection manner that can be inferred from the above embodiments through a general theory should be within the protection scope of the present invention.

The utility model has at least the following technical effects:

(1) the liquid cooling heat dissipation mode is adopted for the whole lamp body 10, the heat dissipation mode that a fan and a large-size heat sink are installed in the lamp body 10 in the prior art is eliminated, the noise generated by the lamp in the running state is reduced, and the whole weight of the lamp body 10 is reduced.

(2) The lamp body 10 portion and the heat dissipation portion are completely separated, so that the installation position of the heat dissipation portion can be flexibly switched. For example, when the lamp body 10 is installed indoors, the heat dissipation outer unit 20 can be installed outdoors, the lamp body 10 and the heat dissipation outer unit 20 are completely separated through a wall, for certain specific application places with strict noise requirements, such as a concert hall, a studio, a recording studio and the like, noise generated by heat dissipation can be completely transferred to the outside (outdoors), effects of performance, recording, reception and the like are ensured, audience experience is greatly improved, and great significance is provided for application of lamps in such places.

(3) The plurality of lamp bodies 10 are connected to the heat dissipating outdoor unit 20 in parallel, and the heat dissipating outdoor unit 20 supplies the cooling liquid to each of the lamp bodies 10 through the plurality of branches, respectively. In the series connection, the coolant in the same water path needs to flow through different lamps in sequence, which results in a higher temperature of the coolant input into the lamp body 10 located at the rear end of the water path, resulting in inconsistent heat dissipation efficiency of each lamp body 10, and poor heat dissipation effect of the lamp body 10 located at the rear end of the water path. For example, the first lamp, the second lamp, the third lamp and the fourth lamp are connected in series, and after the cooling liquid sequentially flows through the first lamp, the second lamp and the third lamp, the temperature of the cooling liquid is high when the cooling liquid enters the fourth lamp, so that the cooling effect of the fourth lamp is not ideal. Compared with the serial connection, the cooling liquid connected in parallel is divided into a plurality of branches to be directly input into each lamp, the temperature rise of the cooling liquid is smaller, and the cooling effect obtained by each lamp is also consistent, namely, the parallel connection has a better cooling effect, and the cooling efficiency is higher.

Preferably, referring to fig. 6 to 7, the heat radiating part 23 includes a heat radiating fin 231 and a heat radiating fan 232. The heat sink 231 is connected to both the liquid storage tank 21 and the liquid outlet end of the lamp body 10 through the liquid cooling tube, and the heat dissipation fan 232 is fixed to the side surface of the heat sink 231. The high-temperature liquid discharged from the lamp body 10 enters the heat sink 231 to be radiated, and at the same time, the heat is blown off to the outside air by the heat radiation fan 232, and the cooling liquid finally flows back into the liquid storage tank 21.

More preferably, the heat radiating portion 23 may further be provided with a refrigerator connected to the tank 21 through a liquid cooling pipe to cool the coolant in the tank 21 to maintain the temperature of the coolant constant. In demanding heat dissipation applications, a refrigerator may be provided, and when the temperature of the liquid in the liquid storage tank 21 is higher than 45 ℃, the refrigerator provided in the external unit starts to operate to cool the liquid in the liquid storage tank 21.

Preferably, referring to fig. 10-13, the light body 10 further includes a light source coldhead 24. The light source cold head 24 is fixed at the bottom of the light source 11 of the lamp body 10 and used for dissipating heat of the light source 11 part of the lamp body 10; a channel for cooling liquid to flow is formed in the light source cold head 24, and the liquid inlet end and the liquid outlet end of the light source cold head 24 are both communicated with the heat dissipation outer unit 20 through liquid cooling pipes.

More preferably, the lamp body 10 further includes a power supply cold head 25. The power supply cold head 25 is fixed at the bottom of the power supply 12 of the lamp body 10 and used for dissipating heat of the power supply 12 of the lamp body 10; the power supply cold junction 25 is fixed at the bottom of the power supply 12 of the lamp body 10, a channel for flowing cooling liquid is formed in the power supply cold junction 25, the liquid inlet end of the power supply cold junction 25 is connected to the liquid outlet end of the light source cold junction 24 through a liquid cooling pipe, and the liquid outlet end of the power supply cold junction 25 is communicated with the heat dissipation outdoor unit 20 through the liquid cooling pipe.

More preferably, the lamp body 10 also includes a driving coldhead 26. The driving cold head 26 is fixed at the bottom of the driving part 13 of the lamp body 10 and used for heat dissipation of the driving part 13 of the lamp body 10; a channel for cooling liquid to flow is also formed in the driving cold head 26, the liquid inlet end of the driving cold head 26 is connected to the liquid outlet end of the power supply cold head 25 through a liquid cooling pipe, and the liquid outlet end of the driving cold head 26 is connected to the heat dissipation outdoor unit 20 through a liquid cooling pipe.

More preferably, the lamp body 10 further comprises a thermostat 27, wherein the liquid inlet end and the liquid outlet end of the thermostat 27 are connected to the light source cold head 24 through liquid cooling pipes, and the thermostat 27 is used for equalizing the temperature of the cavity in the lamp body 10.

Referring to fig. 12-13, after the cooling liquid enters the lamp body 10, the light source 11, the power source 12 and the driver 13 are respectively subjected to heat transfer, which is equivalent to fully achieving a heat dissipation effect on main heat generating components in the lamp body 10, so that the lamp body 10 can achieve a good and sufficient heat dissipation effect, and the temperature of the lamp body 10 is effectively reduced.

Referring to fig. 9, the lamp body housing 14 is further provided with a liquid inlet 141 and a liquid outlet 142 for allowing the liquid cooling tube to be inserted into the interior of the lamp body 10. The liquid inlet 141 and the liquid outlet 142 may be positioned at the front, rear, left, right, upper, rear of the lamp body housing 14, or may share an interface with other functional interfaces of the lamp body 10.

The direction indicated by the arrow in each figure is the direction of flow of the coolant.

The working process of the utility model is explained in detail below:

the power pump 22 is activated to drive the cooling liquid in the liquid storage tank 21 to flow out (supply water), and the cooling liquid in each water supply branch 51 enters into each lamp body 10 through each water supply branch 51 for diversion, and the cooling liquid in each water supply branch 51 is input into the lamp body 10 through the liquid input port of the lamp body 10. The cooling liquid firstly enters the light source cold head 24 to absorb the heat of the light source 11 part; after the cooling liquid flows out of the light source cold head 24, the cooling liquid enters the thermostat 27 to balance the temperature of the cavity in the lamp body 10; the cooling liquid flows into the power supply cold head 25 again to absorb the heat of the power supply 12 part; after flowing out of the power cold head 25, the cold head 26 flows into the driving cold head to absorb the heat of the driving part 13, and finally exits the inside of the lamp body 10 through the liquid outlet 142. The high-temperature liquid flowing out of each lamp body 10 is re-input into the external heat dissipation unit 20 through the corresponding return branch 52 (return): the high temperature liquid is first fed into the heat sink 231, the heat is blown off to the outside air by the two heat dissipation fans 232, the cooling liquid is then fed into the liquid storage tank 21 again through the liquid cooling tube, and if the temperature of the cooling liquid is higher than 45 ℃ or other specific threshold values, the refrigerator operates to refrigerate the liquid in the liquid storage tank 21. Thus, complete waterway circulation is completed.

Referring to fig. 14, for the present invention, the specific form and number of the lamp bodies 10 are not limited, and the lamp bodies 10 may be fixed type lighting lamps, shaking type lighting lamps 15 (such as stage lamps capable of rotating and shaking) and other lighting lamps known in the field of lighting lamps.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (10)

1. The utility model provides an external radiating lamps and lanterns of parallel which characterized in that includes: the lamp comprises a heat dissipation outer machine and at least two lamp bodies;

the lamp bodies are all arranged in an enclosed space, and the heat dissipation outer unit is arranged outside the enclosed space;

the heat dissipation outer machine is connected with the lamp bodies in parallel through the liquid cooling pipes;

the liquid cooling pipeline is arranged inside the lamp body, the heat dissipation external unit at least comprises a liquid storage tank, a power pump and a heat dissipation part, cooling liquid is stored in the liquid storage tank, the heat dissipation part comprises a heat radiator or a refrigerator, and the liquid storage tank, the power pump and the heat dissipation part are connected in series through liquid cooling pipes; the power pump is used for driving the cooling liquid to flow between the heat dissipation outer machine and the lamp body.

2. A parallel external heat-dissipating luminaire according to claim 1, wherein the external heat-dissipating luminaire is externally connected to a main water supply path and a main return path, and each of said lamp bodies is connected to a water supply branch and a return branch, respectively; each water feeding branch is connected with the water feeding branch, and each backflow branch is connected with the backflow main path, so that each lamp body is connected with the heat dissipation outer machine in parallel.

3. A parallel external heat dissipating luminaire according to claim 1, wherein each of said lamp bodies is connected to a water supply branch and a return branch, respectively, and each of said lamp bodies is connected to said external heat dissipating luminaire through its respective water supply branch and return branch.

4. A parallel external heat dissipating luminaire of claim 1 wherein said heat dissipating portion comprises heat sinks and heat dissipating fans; the radiating fin is connected to the liquid storage tank and the liquid outlet end of the lamp body through the liquid cooling pipe, and the radiating fan is fixed on the side face of the radiating fin.

5. A parallel external heat dissipating luminaire according to claim 4, wherein the heat dissipating portion further comprises a refrigerator; the refrigerator is connected to the tank through a liquid cooling tube.

6. A parallel external heat dissipating luminaire of claim 1, wherein said lamp body further comprises: a light source cold head; the light source cold head is fixed at the bottom of the light source of the lamp body, and a channel for flowing of cooling liquid is formed in the light source cold head; and the liquid inlet end and the liquid outlet end of the light source cold head are communicated with the heat dissipation outer machine through liquid cooling pipes.

7. A parallel external heat dissipating luminaire of claim 6, wherein said lamp body further comprises: a power supply cold head; the power supply cold head is fixed at the bottom of the power supply of the lamp body, and a channel for cooling liquid to flow is formed in the power supply cold head; the liquid inlet end of the power supply cold head is connected to the liquid outlet end of the light source cold head through a liquid cooling pipe, and the liquid outlet end of the power supply cold head is communicated with the heat dissipation external unit through a liquid cooling pipe.

8. A parallel external heat sink luminaire of claim 7 wherein the lamp body further comprises: driving the cold head; the driving cold head is fixed at the driving bottom of the lamp body, and a channel for cooling liquid to flow is formed in the driving cold head; the liquid inlet end of the driving cold head is connected with the liquid outlet end of the power supply cold head through a liquid cooling pipe, and the liquid outlet end of the driving cold head is connected with the heat dissipation external unit through a liquid cooling pipe.

9. A parallel external heat dissipating lamp according to claim 8, wherein the lamp body further comprises a thermostat; and the liquid inlet end and the liquid outlet end of the thermostat are both connected to the light source cold head through liquid cooling pipes.

10. A parallel external heat dissipation lamp as recited in claim 1, wherein the lamp body is a fixed lamp or a moving head lamp.

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